[PATCH 00/19] sh-sci: Platform data simplification

[PATCH 00/19] sh-sci: Platform data simplification

[Laurent Pinchart]

Hello,

Most of the patches in this series have been sitting in my development tree
for three years now. While rebasing all my development branches I decided it
was time to send them out in case they're considered useful. I've then thrown
a few additional patches in to move the driver further in the right direction
(or at least the direction I consider right).

The idea behind this series is to move towards removal of the sh-sci platform
data. This won't be possible until SH platforms move to DT (and I won't hold
my breath), but we can get rid of most of the platform data fields already and
cleanup the sh-sci driver at the same time.

The series already removes the capabilities, port_reg, regshift, dma_slave_tx
and dma_slave_rx fields. We should be able to go further:

- The flags field is only used by sh5 to set UPF_IOREMAP. It should be
  possible to find another way to determine in the driver whether to ioremap
  the registers.

- The sampling_rate field is only used by sh7723 and sh7724 to override the
  value hardcoded in the driver, even though the datasheets of those SoCs
  don't mention any restriction. This might not be needed and should be
  investigated.

- The scscr REIE bit should be possible to compute in the driver, as it's set
  for all SCIF ports except SCIx_SH3_SCIF_REGTYPE, SCIx_SH7705_SCIF_REGTYPE,
  and the sh7343 SCIx_SH4_SCIF_REGTYPE. The latter will be trickier to handle.

- Now that we have support for baud rate generators and externel clocks, the
  scscr CKE1 bit should be computed in the driver in all cases.

- The scscr TOIE bit doesn't seem to follow a clear rule, but given that it's
  the last scscr bit to handle I'm sure we'll find something :-)

- It might make sense to merge the type and regtype fields in a single type.

Finally, it might be time to drop support for the SH platforms that would get
in the way of sh-sci cleanup.

Laurent Pinchart (19):
  serial: sh-sci: Set the SCSCR TE and RE bits in the driver
  serial: sh-sci: Don't rely on platform data flags when not needed
  sh: Don't set sh-sci pdata scscr TE and RE bits
  sh: Don't set sh-sci pdata scscr TIE and RIE bits
  sh: sh726[49]: Don't set sh-sci pdata scscr TOIE bit
  sh: Don't set the sh-sci pdata UPF_BOOT_AUTOCONF flags
  sh: Don't set sh-sci port_reg
  sh: sh3: sh770x: Fix platform data for the IRDA serial port
  sh: Don't set the sh-sci platform data regshift field
  sh: Don't set the sh-sci platform data scscr CKE0 bit
  sh: Don't set the sh-sci platform data REIE bit when not implemented
  serial: sh-sci: Remove initialization of zero fields in
    sci_port_params
  serial: sh-sci: Replace regmap array with port parameters
  serial: sh-sci: Constify platform data
  serial: sh-sci: Extend sci_port_params with more port parameters
  serial: sh-sci: Remove the platform data dma slave rx/tx channel IDs
  serial: sh-sci: Remove manual break debouncing
  serial: sh-sci: Remove unused platform data capabilities field
  serial: sh-sci: Compute the regshift value for SCI ports

 arch/sh/kernel/cpu/sh2/setup-sh7619.c  |   9 +-
 arch/sh/kernel/cpu/sh2a/setup-mxg.c    |   3 +-
 arch/sh/kernel/cpu/sh2a/setup-sh7201.c |  24 +-
 arch/sh/kernel/cpu/sh2a/setup-sh7203.c |  16 +-
 arch/sh/kernel/cpu/sh2a/setup-sh7206.c |  12 +-
 arch/sh/kernel/cpu/sh2a/setup-sh7264.c |  32 +-
 arch/sh/kernel/cpu/sh2a/setup-sh7269.c |  32 +-
 arch/sh/kernel/cpu/sh3/setup-sh7705.c  |   6 +-
 arch/sh/kernel/cpu/sh3/setup-sh770x.c  |  12 +-
 arch/sh/kernel/cpu/sh3/setup-sh7710.c  |   8 +-
 arch/sh/kernel/cpu/sh3/setup-sh7720.c  |   4 -
 arch/sh/kernel/cpu/sh4/setup-sh4-202.c |   3 +-
 arch/sh/kernel/cpu/sh4/setup-sh7750.c  |   9 +-
 arch/sh/kernel/cpu/sh4/setup-sh7760.c  |  21 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7343.c |  12 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7366.c |   4 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7722.c |   9 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7723.c |  21 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7724.c |  21 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7734.c |  18 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7757.c |   9 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7763.c |   9 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7770.c |  30 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7780.c |   6 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7785.c |  18 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7786.c |  18 +-
 arch/sh/kernel/cpu/sh4a/setup-shx3.c   |   9 +-
 arch/sh/kernel/cpu/sh5/setup-sh5.c     |   4 +-
 drivers/tty/serial/sh-sci.c            | 831 ++++++++++++++-------------------
 drivers/tty/serial/sh-sci.h            |   4 +-
 include/linux/serial_sci.h             |  15 -
 31 files changed, 449 insertions(+), 780 deletions(-)

-- 
Regards,

Laurent Pinchart

[PATCH 01/19] serial: sh-sci: Set the SCSCR TE and RE bits in the driver

[Laurent Pinchart]

The Transmit Enable and Receive Enable bits are set in the scscr field
of all instances of the sh-sci platform data. Set them in the driver
directly to prepare for their removal from platform data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/tty/serial/sh-sci.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 91e7dddbf72c..1e573611719e 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2341,7 +2341,8 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 		serial_port_out(port, SCFCR, ctrl);
 	}
 
-	scr_val |= s->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0);
+	scr_val |= SCSCR_RE | SCSCR_TE |
+		   (s->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0));
 	dev_dbg(port->dev, "SCSCR 0x%x\n", scr_val);
 	serial_port_out(port, SCSCR, scr_val);
 	if ((srr + 1 = 5) &&
@@ -2791,7 +2792,8 @@ static void serial_console_write(struct console *co, const char *s,
 
 	/* first save SCSCR then disable interrupts, keep clock source */
 	ctrl = serial_port_in(port, SCSCR);
-	ctrl_temp = (sci_port->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0)) |
+	ctrl_temp = SCSCR_RE | SCSCR_TE |
+		    (sci_port->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0)) |
 		    (ctrl & (SCSCR_CKE1 | SCSCR_CKE0));
 	serial_port_out(port, SCSCR, ctrl_temp);
 
@@ -2994,7 +2996,6 @@ sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id)
 	p->flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;
 	p->type = SCI_OF_TYPE(match->data);
 	p->regtype = SCI_OF_REGTYPE(match->data);
-	p->scscr = SCSCR_RE | SCSCR_TE;
 
 	if (of_find_property(np, "uart-has-rtscts", NULL))
 		p->capabilities |= SCIx_HAVE_RTSCTS;
@@ -3162,9 +3163,9 @@ static int __init early_console_setup(struct earlycon_device *device,
 	sci_ports[0].cfg = &port_cfg;
 	sci_ports[0].cfg->type = type;
 	sci_probe_regmap(sci_ports[0].cfg);
-	port_cfg.scscr = sci_serial_in(&sci_ports[0].port, SCSCR) |
-			 SCSCR_RE | SCSCR_TE;
-	sci_serial_out(&sci_ports[0].port, SCSCR, port_cfg.scscr);
+	port_cfg.scscr = sci_serial_in(&sci_ports[0].port, SCSCR);
+	sci_serial_out(&sci_ports[0].port, SCSCR,
+		       SCSCR_RE | SCSCR_TE | port_cfg.scscr);
 
 	device->con->write = serial_console_write;
 	return 0;
-- 
Regards,

Laurent Pinchart

Re: [PATCH 01/19] serial: sh-sci: Set the SCSCR TE and RE bits in the driver

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The Transmit Enable and Receive Enable bits are set in the scscr field
> of all instances of the sh-sci platform data. Set them in the driver
> directly to prepare for their removal from platform data.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 02/19] serial: sh-sci: Don't rely on platform data flags when not needed

[Laurent Pinchart]

The UPF_BOOT_AUTOCONF platform data flag is set by all platforms,
hardcode it.

The UPF_IOREMAP flag is set by a single SH platform and thus needs to be
kept. However, for ARM platforms, we can base the decision on whether an
OF node is present and bypass the platform data flags completely.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/tty/serial/sh-sci.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 1e573611719e..8c58c43fc85d 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2453,7 +2453,7 @@ static int sci_remap_port(struct uart_port *port)
 	if (port->membase)
 		return 0;
 
-	if (port->flags & UPF_IOREMAP) {
+	if (port->dev->of_node || (port->flags & UPF_IOREMAP)) {
 		port->membase = ioremap_nocache(port->mapbase, sport->reg_size);
 		if (unlikely(!port->membase)) {
 			dev_err(port->dev, "can't remap port#%d\n", port->line);
@@ -2475,7 +2475,7 @@ static void sci_release_port(struct uart_port *port)
 {
 	struct sci_port *sport = to_sci_port(port);
 
-	if (port->flags & UPF_IOREMAP) {
+	if (port->dev->of_node || (port->flags & UPF_IOREMAP)) {
 		iounmap(port->membase);
 		port->membase = NULL;
 	}
@@ -2731,7 +2731,7 @@ static int sci_init_single(struct platform_device *dev,
 	}
 
 	port->type		= p->type;
-	port->flags		= UPF_FIXED_PORT | p->flags;
+	port->flags		= UPF_FIXED_PORT | UPF_BOOT_AUTOCONF | p->flags;
 	port->regshift		= p->regshift;
 
 	/*
@@ -2993,7 +2993,6 @@ sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id)
 
 	*dev_id = id;
 
-	p->flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;
 	p->type = SCI_OF_TYPE(match->data);
 	p->regtype = SCI_OF_REGTYPE(match->data);
 
-- 
Regards,

Laurent Pinchart

Re: [PATCH 02/19] serial: sh-sci: Don't rely on platform data flags when not needed

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The UPF_BOOT_AUTOCONF platform data flag is set by all platforms,
> hardcode it.
>
> The UPF_IOREMAP flag is set by a single SH platform and thus needs to be
> kept. However, for ARM platforms, we can base the decision on whether an
> OF node is present and bypass the platform data flags completely.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 03/19] sh: Don't set sh-sci pdata scscr TE and RE bits

[Laurent Pinchart]

The bits are set by the driver internally, don't set them in platform
data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh2/setup-sh7619.c  |  6 +++---
 arch/sh/kernel/cpu/sh2a/setup-mxg.c    |  2 +-
 arch/sh/kernel/cpu/sh2a/setup-sh7201.c | 16 ++++++++--------
 arch/sh/kernel/cpu/sh2a/setup-sh7203.c | 12 ++++--------
 arch/sh/kernel/cpu/sh2a/setup-sh7206.c |  8 ++++----
 arch/sh/kernel/cpu/sh2a/setup-sh7264.c | 24 ++++++++----------------
 arch/sh/kernel/cpu/sh2a/setup-sh7269.c | 24 ++++++++----------------
 arch/sh/kernel/cpu/sh3/setup-sh7705.c  |  5 ++---
 arch/sh/kernel/cpu/sh3/setup-sh770x.c  |  3 ---
 arch/sh/kernel/cpu/sh3/setup-sh7710.c  |  6 ++----
 arch/sh/kernel/cpu/sh3/setup-sh7720.c  |  2 --
 arch/sh/kernel/cpu/sh4/setup-sh4-202.c |  2 +-
 arch/sh/kernel/cpu/sh4/setup-sh7750.c  |  3 +--
 arch/sh/kernel/cpu/sh4/setup-sh7760.c  |  8 ++++----
 arch/sh/kernel/cpu/sh4a/setup-sh7343.c |  8 ++++----
 arch/sh/kernel/cpu/sh4a/setup-sh7366.c |  2 +-
 arch/sh/kernel/cpu/sh4a/setup-sh7722.c |  6 +++---
 arch/sh/kernel/cpu/sh4a/setup-sh7723.c | 12 ++++++------
 arch/sh/kernel/cpu/sh4a/setup-sh7724.c |  9 +++------
 arch/sh/kernel/cpu/sh4a/setup-sh7734.c | 12 ++++++------
 arch/sh/kernel/cpu/sh4a/setup-sh7757.c |  6 +++---
 arch/sh/kernel/cpu/sh4a/setup-sh7763.c |  6 +++---
 arch/sh/kernel/cpu/sh4a/setup-sh7770.c | 20 ++++++++++----------
 arch/sh/kernel/cpu/sh4a/setup-sh7780.c |  4 ++--
 arch/sh/kernel/cpu/sh4a/setup-sh7785.c | 12 ++++++------
 arch/sh/kernel/cpu/sh4a/setup-sh7786.c | 12 ++++++------
 arch/sh/kernel/cpu/sh4a/setup-shx3.c   |  6 +++---
 arch/sh/kernel/cpu/sh5/setup-sh5.c     |  2 +-
 28 files changed, 103 insertions(+), 135 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh2/setup-sh7619.c b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
index 58c19adae900..f8a77bdad0a6 100644
--- a/arch/sh/kernel/cpu/sh2/setup-sh7619.c
+++ b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
@@ -62,7 +62,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -83,7 +83,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -104,7 +104,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh2a/setup-mxg.c b/arch/sh/kernel/cpu/sh2a/setup-mxg.c
index 26fcdbd4127a..fc6f0677888d 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-mxg.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-mxg.c
@@ -130,7 +130,7 @@ static struct platform_device mtu2_device = {
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
index abc0ce9fb800..5b5a67082207 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
@@ -179,7 +179,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7201", vectors, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -200,7 +200,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -221,7 +221,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -242,7 +242,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -263,7 +263,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -284,7 +284,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -305,7 +305,7 @@ static struct platform_device scif5_device = {
 
 static struct plat_sci_port scif6_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -326,7 +326,7 @@ static struct platform_device scif6_device = {
 
 static struct plat_sci_port scif7_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
index 3b4894cba92f..d0d1a36d1264 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
@@ -175,8 +175,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7203", vectors, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -198,8 +197,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -221,8 +219,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -244,8 +241,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
index 49bc5a34bec1..c540fb8c9e09 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
@@ -135,7 +135,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7206", vectors, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -156,7 +156,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -177,7 +177,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -198,7 +198,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7264.c b/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
index 608146455562..0d66fd664836 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
@@ -227,8 +227,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7264", vectors, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -253,8 +252,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -279,8 +277,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -305,8 +302,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -331,8 +327,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -357,8 +352,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -383,8 +377,7 @@ static struct platform_device scif5_device = {
 
 static struct plat_sci_port scif6_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -409,8 +402,7 @@ static struct platform_device scif6_device = {
 
 static struct plat_sci_port scif7_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7269.c b/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
index 16ce5aa77bdd..26abbfbeb99a 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
@@ -249,8 +249,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7269", vectors, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -275,8 +274,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -301,8 +299,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -327,8 +324,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -353,8 +349,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -379,8 +374,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -405,8 +399,7 @@ static struct platform_device scif5_device = {
 
 static struct plat_sci_port scif6_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -431,8 +424,7 @@ static struct platform_device scif6_device = {
 
 static struct plat_sci_port scif7_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
-			  SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
index 6a72fd14de21..62b1559dbe99 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
@@ -71,8 +71,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7705", vectors, NULL,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TIE | SCSCR_RIE  | SCSCR_TE |
-			  SCSCR_RE  | SCSCR_CKE1 | SCSCR_CKE0,
+	.scscr		= SCSCR_TIE | SCSCR_RIE | SCSCR_CKE1 | SCSCR_CKE0,
 	.type		= PORT_SCIF,
 	.ops		= &sh770x_sci_port_ops,
 	.regtype	= SCIx_SH7705_SCIF_REGTYPE,
@@ -95,7 +94,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TIE | SCSCR_RIE | SCSCR_TE | SCSCR_RE,
+	.scscr		= SCSCR_TIE | SCSCR_RIE,
 	.type		= PORT_SCIF,
 	.ops		= &sh770x_sci_port_ops,
 	.regtype	= SCIx_SH7705_SCIF_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index 538c10db3537..06682ae414e2 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -111,7 +111,6 @@ static struct platform_device rtc_device = {
 static struct plat_sci_port scif0_platform_data = {
 	.port_reg	= 0xa4000136,
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TE | SCSCR_RE,
 	.type		= PORT_SCI,
 	.ops		= &sh770x_sci_port_ops,
 	.regshift	= 1,
@@ -136,7 +135,6 @@ static struct platform_device scif0_device = {
     defined(CONFIG_CPU_SUBTYPE_SH7709)
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TE | SCSCR_RE,
 	.type		= PORT_SCIF,
 	.ops		= &sh770x_sci_port_ops,
 	.regtype	= SCIx_SH3_SCIF_REGTYPE,
@@ -162,7 +160,6 @@ static struct platform_device scif1_device = {
 static struct plat_sci_port scif2_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TE | SCSCR_RE,
 	.type		= PORT_IRDA,
 	.ops		= &sh770x_sci_port_ops,
 	.regshift	= 1,
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
index e9ed300dba5c..6347f9625ed1 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7710.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
@@ -99,8 +99,7 @@ static struct platform_device rtc_device = {
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TE | SCSCR_RE | SCSCR_REIE |
-			  SCSCR_CKE1 | SCSCR_CKE0,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1 | SCSCR_CKE0,
 	.type		= PORT_SCIF,
 };
 
@@ -121,8 +120,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TE | SCSCR_RE | SCSCR_REIE |
-			  SCSCR_CKE1 | SCSCR_CKE0,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1 | SCSCR_CKE0,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
index 84df85a5b800..d35400c76db7 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
@@ -53,7 +53,6 @@ static struct platform_device rtc_device = {
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE,
 	.type		= PORT_SCIF,
 	.ops		= &sh7720_sci_port_ops,
 	.regtype	= SCIx_SH7705_SCIF_REGTYPE,
@@ -76,7 +75,6 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE,
 	.type		= PORT_SCIF,
 	.ops		= &sh7720_sci_port_ops,
 	.regtype	= SCIx_SH7705_SCIF_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
index e7a7b3cdf68d..fa5f8e7b8150 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
@@ -18,7 +18,7 @@
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index 5f08c59b9f3e..9baabdaa214e 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -40,7 +40,6 @@ static struct platform_device rtc_device = {
 static struct plat_sci_port sci_platform_data = {
 	.port_reg	= 0xffe0001C,
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TE | SCSCR_RE,
 	.type		= PORT_SCI,
 	.regshift	= 2,
 };
@@ -62,7 +61,7 @@ static struct platform_device sci_device = {
 
 static struct plat_sci_port scif_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TE | SCSCR_RE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
index 973b736b3b98..c94a8f746013 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -129,7 +129,7 @@ static DECLARE_INTC_DESC(intc_desc_irq, "sh7760-irq", vectors_irq, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -155,7 +155,7 @@ static struct platform_device scif0_device = {
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
 	.type		= PORT_SCIF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
 
@@ -179,7 +179,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -204,7 +204,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCI,
 	.regshift	= 2,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
index ceb3dedad983..9de7dc2f3c24 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
@@ -19,7 +19,7 @@
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
+	.scscr		= SCSCR_CKE1,
 	.type           = PORT_SCIF,
 };
 
@@ -40,7 +40,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
+	.scscr		= SCSCR_CKE1,
 	.type           = PORT_SCIF,
 };
 
@@ -61,7 +61,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
+	.scscr		= SCSCR_CKE1,
 	.type           = PORT_SCIF,
 };
 
@@ -82,7 +82,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
+	.scscr		= SCSCR_CKE1,
 	.type           = PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
index f75f67343139..d9a8f242e148 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
@@ -22,7 +22,7 @@
 static struct plat_sci_port scif0_platform_data = {
 	.port_reg	= 0xa405013e,
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
index 7aa733307afc..7d41261c5f67 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
@@ -180,7 +180,7 @@ struct platform_device dma_device = {
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.ops		= &sh7722_sci_port_ops,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -203,7 +203,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.ops		= &sh7722_sci_port_ops,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -226,7 +226,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.ops		= &sh7722_sci_port_ops,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index 3533b56dd465..610571f174ee 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -25,7 +25,7 @@
 static struct plat_sci_port scif0_platform_data = {
 	.port_reg	= 0xa4050160,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
@@ -48,7 +48,7 @@ static struct platform_device scif0_device = {
 static struct plat_sci_port scif1_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
@@ -71,7 +71,7 @@ static struct platform_device scif1_device = {
 static struct plat_sci_port scif2_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
@@ -94,7 +94,7 @@ static struct platform_device scif2_device = {
 static struct plat_sci_port scif3_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -117,7 +117,7 @@ static struct platform_device scif3_device = {
 static struct plat_sci_port scif4_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -140,7 +140,7 @@ static struct platform_device scif4_device = {
 static struct plat_sci_port scif5_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
index ea5780b3c7f6..478a61f73b47 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
@@ -292,7 +292,7 @@ static struct platform_device dma1_device = {
 static struct plat_sci_port scif0_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
@@ -315,7 +315,7 @@ static struct platform_device scif0_device = {
 static struct plat_sci_port scif1_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
@@ -338,7 +338,7 @@ static struct platform_device scif1_device = {
 static struct plat_sci_port scif2_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
 };
@@ -361,7 +361,6 @@ static struct platform_device scif2_device = {
 static struct plat_sci_port scif3_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -384,7 +383,6 @@ static struct platform_device scif3_device = {
 static struct plat_sci_port scif4_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -407,7 +405,6 @@ static struct platform_device scif4_device = {
 static struct plat_sci_port scif5_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7734.c b/arch/sh/kernel/cpu/sh4a/setup-sh7734.c
index 69b8a50310d9..51910a8d8df4 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7734.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7734.c
@@ -26,7 +26,7 @@
 /* SCIF */
 static struct plat_sci_port scif0_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr          = SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype        = SCIx_SH4_SCIF_BRG_REGTYPE,
 };
@@ -48,7 +48,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr          = SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype        = SCIx_SH4_SCIF_BRG_REGTYPE,
 };
@@ -70,7 +70,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr          = SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype        = SCIx_SH4_SCIF_BRG_REGTYPE,
 };
@@ -92,7 +92,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr          = SCSCR_REIE | SCSCR_TOIE,
 	.type           = PORT_SCIF,
 	.regtype        = SCIx_SH4_SCIF_BRG_REGTYPE,
 };
@@ -114,7 +114,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr          = SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype        = SCIx_SH4_SCIF_BRG_REGTYPE,
 };
@@ -136,7 +136,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags          = UPF_BOOT_AUTOCONF,
-	.scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr          = SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_BRG_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7757.c b/arch/sh/kernel/cpu/sh4a/setup-sh7757.c
index 18bcd70cd813..b44061cb8540 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7757.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7757.c
@@ -25,7 +25,7 @@
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -46,7 +46,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -67,7 +67,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
index 5a47d670ddec..428c16526dcb 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
@@ -20,7 +20,7 @@
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -42,7 +42,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -64,7 +64,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
index e9b532a76c37..b2d3206e2704 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
@@ -17,7 +17,7 @@
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
 
@@ -38,7 +38,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
 
@@ -59,7 +59,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
 
@@ -80,7 +80,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
 
@@ -101,7 +101,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
 
@@ -122,7 +122,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
 
@@ -143,7 +143,7 @@ static struct platform_device scif5_device = {
 
 static struct plat_sci_port scif6_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
 
@@ -164,7 +164,7 @@ static struct platform_device scif6_device = {
 
 static struct plat_sci_port scif7_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
 
@@ -185,7 +185,7 @@ static struct platform_device scif7_device = {
 
 static struct plat_sci_port scif8_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
 
@@ -206,7 +206,7 @@ static struct platform_device scif8_device = {
 
 static struct plat_sci_port scif9_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
index 3ee7dd9b3a65..59282f760ca9 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
@@ -19,7 +19,7 @@
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -41,7 +41,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
index c72d5a5d0995..22893c0f1662 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
@@ -21,7 +21,7 @@
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -43,7 +43,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -65,7 +65,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -87,7 +87,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -109,7 +109,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -131,7 +131,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 479e79bdd3d0..32525e13aa26 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -29,7 +29,7 @@
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -57,7 +57,7 @@ static struct platform_device scif0_device = {
  */
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -88,7 +88,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -110,7 +110,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -132,7 +132,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
@@ -154,7 +154,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-shx3.c b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
index a78c5feb4e3b..5495d6693086 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-shx3.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
@@ -29,7 +29,7 @@
  */
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -53,7 +53,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
@@ -77,7 +77,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
diff --git a/arch/sh/kernel/cpu/sh5/setup-sh5.c b/arch/sh/kernel/cpu/sh5/setup-sh5.c
index 1bf0b2cf6652..5ce34bfd0b4e 100644
--- a/arch/sh/kernel/cpu/sh5/setup-sh5.c
+++ b/arch/sh/kernel/cpu/sh5/setup-sh5.c
@@ -18,7 +18,7 @@
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
-	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
 
-- 
Regards,

Laurent Pinchart

Re: [PATCH 03/19] sh: Don't set sh-sci pdata scscr TE and RE bits

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The bits are set by the driver internally, don't set them in platform
> data.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 04/19] sh: Don't set sh-sci pdata scscr TIE and RIE bits

[Laurent Pinchart]

The scscr platform data field is used by the driver in three locations.
One of them masks out all bits except SCSCR_REIE. The two other are the
set_termios handler and the console write handler.

The set_termios handler calls sci_start_rx() to enable the receiver,
which sets the RIE bit unconditionally. It then calls sci_port_disable()
that effectively disables both the transmitter and the receiver. The
TIE bit will thus get set later when the serial cores reenables the
serial port.

The console write handler runs with interrupts disabled, and saves and
restores the SCSCR register value. The RIE and TIE bits are thus not
needed there.

The bits are thus not necessary in platform data, remove them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh2a/setup-sh7203.c |  8 ++++----
 arch/sh/kernel/cpu/sh2a/setup-sh7264.c | 16 ++++++++--------
 arch/sh/kernel/cpu/sh2a/setup-sh7269.c | 16 ++++++++--------
 arch/sh/kernel/cpu/sh3/setup-sh7705.c  |  3 +--
 4 files changed, 21 insertions(+), 22 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
index d0d1a36d1264..146a7d9a20fd 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
@@ -175,7 +175,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7203", vectors, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -197,7 +197,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -219,7 +219,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -241,7 +241,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7264.c b/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
index 0d66fd664836..f111c20177ea 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
@@ -227,7 +227,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7264", vectors, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -252,7 +252,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -277,7 +277,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -302,7 +302,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -327,7 +327,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -352,7 +352,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -377,7 +377,7 @@ static struct platform_device scif5_device = {
 
 static struct plat_sci_port scif6_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -402,7 +402,7 @@ static struct platform_device scif6_device = {
 
 static struct plat_sci_port scif7_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7269.c b/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
index 26abbfbeb99a..b3445e59841a 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
@@ -249,7 +249,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7269", vectors, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -274,7 +274,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -299,7 +299,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -324,7 +324,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -349,7 +349,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -374,7 +374,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -399,7 +399,7 @@ static struct platform_device scif5_device = {
 
 static struct plat_sci_port scif6_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -424,7 +424,7 @@ static struct platform_device scif6_device = {
 
 static struct plat_sci_port scif7_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
index 62b1559dbe99..4f7b4f9b7d02 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
@@ -71,7 +71,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7705", vectors, NULL,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TIE | SCSCR_RIE | SCSCR_CKE1 | SCSCR_CKE0,
+	.scscr		= SCSCR_CKE1 | SCSCR_CKE0,
 	.type		= PORT_SCIF,
 	.ops		= &sh770x_sci_port_ops,
 	.regtype	= SCIx_SH7705_SCIF_REGTYPE,
@@ -94,7 +94,6 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_TIE | SCSCR_RIE,
 	.type		= PORT_SCIF,
 	.ops		= &sh770x_sci_port_ops,
 	.regtype	= SCIx_SH7705_SCIF_REGTYPE,
-- 
Regards,

Laurent Pinchart

Re: [PATCH 04/19] sh: Don't set sh-sci pdata scscr TIE and RIE bits

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The scscr platform data field is used by the driver in three locations.
> One of them masks out all bits except SCSCR_REIE. The two other are the
> set_termios handler and the console write handler.
>
> The set_termios handler calls sci_start_rx() to enable the receiver,
> which sets the RIE bit unconditionally. It then calls sci_port_disable()
> that effectively disables both the transmitter and the receiver. The
> TIE bit will thus get set later when the serial cores reenables the
> serial port.
>
> The console write handler runs with interrupts disabled, and saves and
> restores the SCSCR register value. The RIE and TIE bits are thus not
> needed there.
>
> The bits are thus not necessary in platform data, remove them.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 05/19] sh: sh726[49]: Don't set sh-sci pdata scscr TOIE bit

[Laurent Pinchart]

The SCIF ports on sh7264 and sh7269 don't support the TOIE bit according
to the datasheets.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh2a/setup-sh7264.c | 16 ++++++++--------
 arch/sh/kernel/cpu/sh2a/setup-sh7269.c | 16 ++++++++--------
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7264.c b/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
index f111c20177ea..aebaa7a4da46 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
@@ -227,7 +227,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7264", vectors, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -252,7 +252,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -277,7 +277,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -302,7 +302,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -327,7 +327,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -352,7 +352,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -377,7 +377,7 @@ static struct platform_device scif5_device = {
 
 static struct plat_sci_port scif6_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -402,7 +402,7 @@ static struct platform_device scif6_device = {
 
 static struct plat_sci_port scif7_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7269.c b/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
index b3445e59841a..6d7ac07b4e54 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
@@ -249,7 +249,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7269", vectors, groups,
 
 static struct plat_sci_port scif0_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -274,7 +274,7 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -299,7 +299,7 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -324,7 +324,7 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -349,7 +349,7 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -374,7 +374,7 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -399,7 +399,7 @@ static struct platform_device scif5_device = {
 
 static struct plat_sci_port scif6_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
@@ -424,7 +424,7 @@ static struct platform_device scif6_device = {
 
 static struct plat_sci_port scif7_platform_data = {
 	.flags		= UPF_BOOT_AUTOCONF,
-	.scscr		= SCSCR_REIE | SCSCR_TOIE,
+	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
 };
-- 
Regards,

Laurent Pinchart

Re: [PATCH 05/19] sh: sh726[49]: Don't set sh-sci pdata scscr TOIE bit

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The SCIF ports on sh7264 and sh7269 don't support the TOIE bit according
> to the datasheets.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Looks OK for sh7269
I don't have a sh7264 datasheet, so let's trust you on that ;-)

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 06/19] sh: Don't set the sh-sci pdata UPF_BOOT_AUTOCONF flags

[Laurent Pinchart]

The flag is set by the driver internally, don't set it in platform data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh2/setup-sh7619.c  |  3 ---
 arch/sh/kernel/cpu/sh2a/setup-mxg.c    |  1 -
 arch/sh/kernel/cpu/sh2a/setup-sh7201.c |  8 --------
 arch/sh/kernel/cpu/sh2a/setup-sh7203.c |  4 ----
 arch/sh/kernel/cpu/sh2a/setup-sh7206.c |  4 ----
 arch/sh/kernel/cpu/sh2a/setup-sh7264.c |  8 --------
 arch/sh/kernel/cpu/sh2a/setup-sh7269.c |  8 --------
 arch/sh/kernel/cpu/sh3/setup-sh7705.c  |  2 --
 arch/sh/kernel/cpu/sh3/setup-sh770x.c  |  3 ---
 arch/sh/kernel/cpu/sh3/setup-sh7710.c  |  2 --
 arch/sh/kernel/cpu/sh3/setup-sh7720.c  |  2 --
 arch/sh/kernel/cpu/sh4/setup-sh4-202.c |  1 -
 arch/sh/kernel/cpu/sh4/setup-sh7750.c  |  2 --
 arch/sh/kernel/cpu/sh4/setup-sh7760.c  |  4 ----
 arch/sh/kernel/cpu/sh4a/setup-sh7343.c |  4 ----
 arch/sh/kernel/cpu/sh4a/setup-sh7366.c |  1 -
 arch/sh/kernel/cpu/sh4a/setup-sh7722.c |  3 ---
 arch/sh/kernel/cpu/sh4a/setup-sh7723.c |  6 ------
 arch/sh/kernel/cpu/sh4a/setup-sh7724.c |  6 ------
 arch/sh/kernel/cpu/sh4a/setup-sh7734.c |  6 ------
 arch/sh/kernel/cpu/sh4a/setup-sh7757.c |  3 ---
 arch/sh/kernel/cpu/sh4a/setup-sh7763.c |  3 ---
 arch/sh/kernel/cpu/sh4a/setup-sh7770.c | 10 ----------
 arch/sh/kernel/cpu/sh4a/setup-sh7780.c |  2 --
 arch/sh/kernel/cpu/sh4a/setup-sh7785.c |  6 ------
 arch/sh/kernel/cpu/sh4a/setup-sh7786.c |  6 ------
 arch/sh/kernel/cpu/sh4a/setup-shx3.c   |  3 ---
 arch/sh/kernel/cpu/sh5/setup-sh5.c     |  2 +-
 28 files changed, 1 insertion(+), 112 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh2/setup-sh7619.c b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
index f8a77bdad0a6..95796ad00fbe 100644
--- a/arch/sh/kernel/cpu/sh2/setup-sh7619.c
+++ b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
@@ -61,7 +61,6 @@ static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
 			 NULL, prio_registers, NULL);
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -82,7 +81,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -103,7 +101,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh2a/setup-mxg.c b/arch/sh/kernel/cpu/sh2a/setup-mxg.c
index fc6f0677888d..060fdd369f09 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-mxg.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-mxg.c
@@ -129,7 +129,6 @@ static struct platform_device mtu2_device = {
 };
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
index 5b5a67082207..c1301f68d3cd 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
@@ -178,7 +178,6 @@ static DECLARE_INTC_DESC(intc_desc, "sh7201", vectors, groups,
 			 mask_registers, prio_registers, NULL);
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -199,7 +198,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -220,7 +218,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -241,7 +238,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -262,7 +258,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -283,7 +278,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -304,7 +298,6 @@ static struct platform_device scif5_device = {
 };
 
 static struct plat_sci_port scif6_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -325,7 +318,6 @@ static struct platform_device scif6_device = {
 };
 
 static struct plat_sci_port scif7_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
index 146a7d9a20fd..32ec732e28e5 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
@@ -174,7 +174,6 @@ static DECLARE_INTC_DESC(intc_desc, "sh7203", vectors, groups,
 			 mask_registers, prio_registers, NULL);
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -196,7 +195,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -218,7 +216,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -240,7 +237,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
index c540fb8c9e09..8d8d354851ce 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
@@ -134,7 +134,6 @@ static DECLARE_INTC_DESC(intc_desc, "sh7206", vectors, groups,
 			 mask_registers, prio_registers, NULL);
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -155,7 +154,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -176,7 +174,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -197,7 +194,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7264.c b/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
index aebaa7a4da46..ab71eab690fd 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7264.c
@@ -226,7 +226,6 @@ static DECLARE_INTC_DESC(intc_desc, "sh7264", vectors, groups,
 			 mask_registers, prio_registers, NULL);
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -251,7 +250,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -276,7 +274,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -301,7 +298,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -326,7 +322,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -351,7 +346,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -376,7 +370,6 @@ static struct platform_device scif5_device = {
 };
 
 static struct plat_sci_port scif6_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -401,7 +394,6 @@ static struct platform_device scif6_device = {
 };
 
 static struct plat_sci_port scif7_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7269.c b/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
index 6d7ac07b4e54..c7e81b20967c 100644
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7269.c
@@ -248,7 +248,6 @@ static DECLARE_INTC_DESC(intc_desc, "sh7269", vectors, groups,
 			 mask_registers, prio_registers, NULL);
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -273,7 +272,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -298,7 +296,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -323,7 +320,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -348,7 +344,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -373,7 +368,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -398,7 +392,6 @@ static struct platform_device scif5_device = {
 };
 
 static struct plat_sci_port scif6_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
@@ -423,7 +416,6 @@ static struct platform_device scif6_device = {
 };
 
 static struct plat_sci_port scif7_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
index 4f7b4f9b7d02..a60edd8f3db7 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
@@ -70,7 +70,6 @@ static DECLARE_INTC_DESC(intc_desc, "sh7705", vectors, NULL,
 			 NULL, prio_registers, NULL);
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_CKE1 | SCSCR_CKE0,
 	.type		= PORT_SCIF,
 	.ops		= &sh770x_sci_port_ops,
@@ -93,7 +92,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.type		= PORT_SCIF,
 	.ops		= &sh770x_sci_port_ops,
 	.regtype	= SCIx_SH7705_SCIF_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index 06682ae414e2..e64fe24d860c 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -110,7 +110,6 @@ static struct platform_device rtc_device = {
 
 static struct plat_sci_port scif0_platform_data = {
 	.port_reg	= 0xa4000136,
-	.flags		= UPF_BOOT_AUTOCONF,
 	.type		= PORT_SCI,
 	.ops		= &sh770x_sci_port_ops,
 	.regshift	= 1,
@@ -134,7 +133,6 @@ static struct platform_device scif0_device = {
     defined(CONFIG_CPU_SUBTYPE_SH7707) || \
     defined(CONFIG_CPU_SUBTYPE_SH7709)
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.type		= PORT_SCIF,
 	.ops		= &sh770x_sci_port_ops,
 	.regtype	= SCIx_SH3_SCIF_REGTYPE,
@@ -159,7 +157,6 @@ static struct platform_device scif1_device = {
     defined(CONFIG_CPU_SUBTYPE_SH7709)
 static struct plat_sci_port scif2_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags		= UPF_BOOT_AUTOCONF,
 	.type		= PORT_IRDA,
 	.ops		= &sh770x_sci_port_ops,
 	.regshift	= 1,
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
index 6347f9625ed1..ac2a0aabcec5 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7710.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
@@ -98,7 +98,6 @@ static struct platform_device rtc_device = {
 };
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1 | SCSCR_CKE0,
 	.type		= PORT_SCIF,
 };
@@ -119,7 +118,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1 | SCSCR_CKE0,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
index d35400c76db7..bf34b4e2e9ef 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
@@ -52,7 +52,6 @@ static struct platform_device rtc_device = {
 };
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.type		= PORT_SCIF,
 	.ops		= &sh7720_sci_port_ops,
 	.regtype	= SCIx_SH7705_SCIF_REGTYPE,
@@ -74,7 +73,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.type		= PORT_SCIF,
 	.ops		= &sh7720_sci_port_ops,
 	.regtype	= SCIx_SH7705_SCIF_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
index fa5f8e7b8150..2623f820d510 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
@@ -17,7 +17,6 @@
 #include <linux/io.h>
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index 9baabdaa214e..f693f122a286 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -39,7 +39,6 @@ static struct platform_device rtc_device = {
 
 static struct plat_sci_port sci_platform_data = {
 	.port_reg	= 0xffe0001C,
-	.flags		= UPF_BOOT_AUTOCONF,
 	.type		= PORT_SCI,
 	.regshift	= 2,
 };
@@ -60,7 +59,6 @@ static struct platform_device sci_device = {
 };
 
 static struct plat_sci_port scif_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
index c94a8f746013..641b85865a63 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -128,7 +128,6 @@ static DECLARE_INTC_DESC(intc_desc_irq, "sh7760-irq", vectors_irq, groups,
 			 mask_registers, prio_registers, NULL);
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -153,7 +152,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.type		= PORT_SCIF,
 	.scscr		= SCSCR_REIE,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -178,7 +176,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -203,7 +200,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCI,
 	.regshift	= 2,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
index 9de7dc2f3c24..5788073a7c30 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
@@ -18,7 +18,6 @@
 
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_CKE1,
 	.type           = PORT_SCIF,
 };
@@ -39,7 +38,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_CKE1,
 	.type           = PORT_SCIF,
 };
@@ -60,7 +58,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_CKE1,
 	.type           = PORT_SCIF,
 };
@@ -81,7 +78,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_CKE1,
 	.type           = PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
index d9a8f242e148..3fc1a3ab634e 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
@@ -21,7 +21,6 @@
 
 static struct plat_sci_port scif0_platform_data = {
 	.port_reg	= 0xa405013e,
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
index 7d41261c5f67..6b3a26e61abb 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
@@ -179,7 +179,6 @@ struct platform_device dma_device = {
 
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.ops		= &sh7722_sci_port_ops,
@@ -202,7 +201,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.ops		= &sh7722_sci_port_ops,
@@ -225,7 +223,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.ops		= &sh7722_sci_port_ops,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index 610571f174ee..9f47ec950af8 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -24,7 +24,6 @@
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
 	.port_reg	= 0xa4050160,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -47,7 +46,6 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -70,7 +68,6 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -92,7 +89,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
@@ -116,7 +112,6 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
@@ -139,7 +134,6 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
index 478a61f73b47..3ce55884c787 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
@@ -291,7 +291,6 @@ static struct platform_device dma1_device = {
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -314,7 +313,6 @@ static struct platform_device scif0_device = {
 
 static struct plat_sci_port scif1_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -337,7 +335,6 @@ static struct platform_device scif1_device = {
 
 static struct plat_sci_port scif2_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -360,7 +357,6 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -382,7 +378,6 @@ static struct platform_device scif3_device = {
 
 static struct plat_sci_port scif4_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -404,7 +399,6 @@ static struct platform_device scif4_device = {
 
 static struct plat_sci_port scif5_platform_data = {
 	.port_reg	= SCIx_NOT_SUPPORTED,
-	.flags          = UPF_BOOT_AUTOCONF,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7734.c b/arch/sh/kernel/cpu/sh4a/setup-sh7734.c
index 51910a8d8df4..8c0c9da6b5b3 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7734.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7734.c
@@ -25,7 +25,6 @@
 
 /* SCIF */
 static struct plat_sci_port scif0_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr          = SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype        = SCIx_SH4_SCIF_BRG_REGTYPE,
@@ -47,7 +46,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr          = SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype        = SCIx_SH4_SCIF_BRG_REGTYPE,
@@ -69,7 +67,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr          = SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype        = SCIx_SH4_SCIF_BRG_REGTYPE,
@@ -91,7 +88,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr          = SCSCR_REIE | SCSCR_TOIE,
 	.type           = PORT_SCIF,
 	.regtype        = SCIx_SH4_SCIF_BRG_REGTYPE,
@@ -113,7 +109,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr          = SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype        = SCIx_SH4_SCIF_BRG_REGTYPE,
@@ -135,7 +130,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.flags          = UPF_BOOT_AUTOCONF,
 	.scscr          = SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_BRG_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7757.c b/arch/sh/kernel/cpu/sh4a/setup-sh7757.c
index b44061cb8540..a46a19b49e08 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7757.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7757.c
@@ -24,7 +24,6 @@
 #include <cpu/sh7757.h>
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -45,7 +44,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -66,7 +64,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
index 428c16526dcb..40e6cda914d3 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
@@ -19,7 +19,6 @@
 #include <linux/usb/ohci_pdriver.h>
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -41,7 +40,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -63,7 +61,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
index b2d3206e2704..82e3bdf2e1b6 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
@@ -16,7 +16,6 @@
 #include <linux/io.h>
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
@@ -37,7 +36,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
@@ -58,7 +56,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
@@ -79,7 +76,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
@@ -100,7 +96,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
@@ -121,7 +116,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
@@ -142,7 +136,6 @@ static struct platform_device scif5_device = {
 };
 
 static struct plat_sci_port scif6_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
@@ -163,7 +156,6 @@ static struct platform_device scif6_device = {
 };
 
 static struct plat_sci_port scif7_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
@@ -184,7 +176,6 @@ static struct platform_device scif7_device = {
 };
 
 static struct plat_sci_port scif8_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
@@ -205,7 +196,6 @@ static struct platform_device scif8_device = {
 };
 
 static struct plat_sci_port scif9_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_TOIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
index 59282f760ca9..d90ff67a4633 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
@@ -18,7 +18,6 @@
 #include <cpu/dma-register.h>
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -40,7 +39,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
index 22893c0f1662..b0d6f82f2d71 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
@@ -20,7 +20,6 @@
 #include <cpu/dma-register.h>
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -42,7 +41,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -64,7 +62,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -86,7 +83,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -108,7 +104,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -130,7 +125,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 32525e13aa26..17aac38a6e90 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -28,7 +28,6 @@
 #include <asm/mmzone.h>
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -56,7 +55,6 @@ static struct platform_device scif0_device = {
  * The rest of these all have multiplexed IRQs
  */
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -87,7 +85,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -109,7 +106,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -131,7 +127,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
@@ -153,7 +148,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_FIFODATA_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-shx3.c b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
index 5495d6693086..ee14d92d840f 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-shx3.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
@@ -28,7 +28,6 @@
  * all rather than adding infrastructure to hack around it.
  */
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -52,7 +51,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
@@ -76,7 +74,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh5/setup-sh5.c b/arch/sh/kernel/cpu/sh5/setup-sh5.c
index 5ce34bfd0b4e..084a9cc99175 100644
--- a/arch/sh/kernel/cpu/sh5/setup-sh5.c
+++ b/arch/sh/kernel/cpu/sh5/setup-sh5.c
@@ -17,7 +17,7 @@
 #include <asm/addrspace.h>
 
 static struct plat_sci_port scif0_platform_data = {
-	.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
+	.flags		= UPF_IOREMAP,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
-- 
Regards,

Laurent Pinchart

Re: [PATCH 06/19] sh: Don't set the sh-sci pdata UPF_BOOT_AUTOCONF flags

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The flag is set by the driver internally, don't set it in platform data.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 07/19] sh: Don't set sh-sci port_reg

[Laurent Pinchart]

The driver considers all negative or zero values of the port_reg field
as invalid. The four platforms that set the field to a register address
all use an address higher than 0x7fffffff, which is thus considered by
the driver as invalid. The feature is thus never used, remove it.

The feature could be implemented properly in the future using the
pinctrl and GPIO APIs if desired.

While at it, don't set the field to SCIx_NOT_SUPPORTED (-1) either,
leaving it unset leads to the same result. This will allow removing the
SCIx_NOT_SUPPORTED macro.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh3/setup-sh770x.c  | 2 --
 arch/sh/kernel/cpu/sh4/setup-sh7750.c  | 1 -
 arch/sh/kernel/cpu/sh4a/setup-sh7366.c | 1 -
 arch/sh/kernel/cpu/sh4a/setup-sh7723.c | 6 ------
 arch/sh/kernel/cpu/sh4a/setup-sh7724.c | 6 ------
 5 files changed, 16 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index e64fe24d860c..e1e54258b822 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -109,7 +109,6 @@ static struct platform_device rtc_device = {
 };
 
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= 0xa4000136,
 	.type		= PORT_SCI,
 	.ops		= &sh770x_sci_port_ops,
 	.regshift	= 1,
@@ -156,7 +155,6 @@ static struct platform_device scif1_device = {
 #if defined(CONFIG_CPU_SUBTYPE_SH7707) || \
     defined(CONFIG_CPU_SUBTYPE_SH7709)
 static struct plat_sci_port scif2_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.type		= PORT_IRDA,
 	.ops		= &sh770x_sci_port_ops,
 	.regshift	= 1,
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index f693f122a286..d98a55416306 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -38,7 +38,6 @@ static struct platform_device rtc_device = {
 };
 
 static struct plat_sci_port sci_platform_data = {
-	.port_reg	= 0xffe0001C,
 	.type		= PORT_SCI,
 	.regshift	= 2,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
index 3fc1a3ab634e..646918713d9a 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
@@ -20,7 +20,6 @@
 #include <asm/clock.h>
 
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= 0xa405013e,
 	.scscr		= SCSCR_REIE,
 	.type		= PORT_SCIF,
 };
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index 9f47ec950af8..6c5cb234aa33 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -23,7 +23,6 @@
 
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= 0xa4050160,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -45,7 +44,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -67,7 +65,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -89,7 +86,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
@@ -111,7 +107,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
@@ -133,7 +128,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
index 3ce55884c787..c20258b18775 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
@@ -290,7 +290,6 @@ static struct platform_device dma1_device = {
 
 /* Serial */
 static struct plat_sci_port scif0_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -312,7 +311,6 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -334,7 +332,6 @@ static struct platform_device scif1_device = {
 };
 
 static struct plat_sci_port scif2_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.scscr		= SCSCR_REIE,
 	.type           = PORT_SCIF,
 	.regtype	= SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
@@ -356,7 +353,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -377,7 +373,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -398,7 +393,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.port_reg	= SCIx_NOT_SUPPORTED,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
-- 
Regards,

Laurent Pinchart

Re: [PATCH 07/19] sh: Don't set sh-sci port_reg

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The driver considers all negative or zero values of the port_reg field
> as invalid. The four platforms that set the field to a register address
> all use an address higher than 0x7fffffff, which is thus considered by
> the driver as invalid. The feature is thus never used, remove it.

Yeah, it's been broken since v3.1
(commit 514820eb982eb856 ("serial: sh-sci: Consolidate RXD pin handling")).

> The feature could be implemented properly in the future using the
> pinctrl and GPIO APIs if desired.
>
> While at it, don't set the field to SCIx_NOT_SUPPORTED (-1) either,
> leaving it unset leads to the same result. This will allow removing the
> SCIx_NOT_SUPPORTED macro.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 08/19] sh: sh3: sh770x: Fix platform data for the IRDA serial port

[Laurent Pinchart]

Even though most of its registers are 8-bit wide, the IRDA has two
16-bit registers that make it a 16-bit peripheral and not a 8-bit
peripheral with addresses shifted by one. Fix the memory resource size
and the platform data regshift value.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh3/setup-sh770x.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index e1e54258b822..084a91e6027e 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -157,11 +157,10 @@ static struct platform_device scif1_device = {
 static struct plat_sci_port scif2_platform_data = {
 	.type		= PORT_IRDA,
 	.ops		= &sh770x_sci_port_ops,
-	.regshift	= 1,
 };
 
 static struct resource scif2_resources[] = {
-	DEFINE_RES_MEM(0xa4000140, 0x10),
+	DEFINE_RES_MEM(0xa4000140, 0x20),
 	DEFINE_RES_IRQ(evt2irq(0x880)),
 };
 
-- 
Regards,

Laurent Pinchart

Re: [PATCH 08/19] sh: sh3: sh770x: Fix platform data for the IRDA serial port

[Geert Uytterhoeven]

Hi Laurent,

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> Even though most of its registers are 8-bit wide, the IRDA has two
> 16-bit registers that make it a 16-bit peripheral and not a 8-bit
> peripheral with addresses shifted by one. Fix the memory resource size
> and the platform data regshift value.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> ---
>  arch/sh/kernel/cpu/sh3/setup-sh770x.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
> index e1e54258b822..084a91e6027e 100644
> --- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
> +++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
> @@ -157,11 +157,10 @@ static struct platform_device scif1_device = {
>  static struct plat_sci_port scif2_platform_data = {
>         .type           = PORT_IRDA,
>         .ops            = &sh770x_sci_port_ops,
> -       .regshift       = 1,

According to my sh7707 and sh7709 datasheets. regshift = 1 is correct.

SCIx_IRDA_REGTYPE uses:

                [SCSMR]         = { 0x00,  8 },
                [SCBRR]         = { 0x01,  8 },
                [SCSCR]         = { 0x02,  8 },
                [SCxTDR]        = { 0x03,  8 },
                [SCxSR]         = { 0x04,  8 },
                [SCxRDR]        = { 0x05,  8 },
                [SCFCR]         = { 0x06,  8 },
                [SCFDR]         = { 0x07, 16 },

While the datasheet says:

        SCSMR1  H'A4000140      8 bits
        SCBRR1  H'A4000142      8 bits
        SCSCR1  H'A4000144      8 bits
        SCFTDR1 H'A4000146      8 bits
        SCSSR1  H'A4000148      16 bits
        SCFRDR1 H'A400014A      8 bits
        SCFCR1  H'A400014C      8 bits
        SCFDR1  H'A400014E      16 bits

So you do need regshift = 1 to handle the gaps.

Note that SCSSR1 is a 16-bit registers, while SCIx_IRDA_REGTYPE
declares it as 8-bit, so it may not work at all...

Ah, you're fixing all this in "[PATCH 19/19] serial: sh-sci: Compute the
regshift value for SCI ports".
I think that part should be moved to this patch, to not break bisection.

>  static struct resource scif2_resources[] = {
> -       DEFINE_RES_MEM(0xa4000140, 0x10),
> +       DEFINE_RES_MEM(0xa4000140, 0x20),
>         DEFINE_RES_IRQ(evt2irq(0x880)),
>  };

According to the register list above, resource size 0x10 is correct.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 08/19] sh: sh3: sh770x: Fix platform data for the IRDA serial port

[Laurent Pinchart]

Hi Geert,

On Friday 06 Jan 2017 11:18:32 Geert Uytterhoeven wrote:
> On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart wrote:
> > Even though most of its registers are 8-bit wide, the IRDA has two
> > 16-bit registers that make it a 16-bit peripheral and not a 8-bit
> > peripheral with addresses shifted by one. Fix the memory resource size
> > and the platform data regshift value.
> > 
> > Signed-off-by: Laurent Pinchart
> > <laurent.pinchart+renesas@ideasonboard.com>
> > ---
> > 
> >  arch/sh/kernel/cpu/sh3/setup-sh770x.c | 3 +--
> >  1 file changed, 1 insertion(+), 2 deletions(-)
> > 
> > diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
> > b/arch/sh/kernel/cpu/sh3/setup-sh770x.c index e1e54258b822..084a91e6027e
> > 100644
> > --- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
> > +++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
> > @@ -157,11 +157,10 @@ static struct platform_device scif1_device = {
> >  static struct plat_sci_port scif2_platform_data = {
> >         .type           = PORT_IRDA,
> >         .ops            = &sh770x_sci_port_ops,
> > -       .regshift       = 1,
> 
> According to my sh7707 and sh7709 datasheets. regshift = 1 is correct.
> 
> SCIx_IRDA_REGTYPE uses:
> 
>                 [SCSMR]         = { 0x00,  8 },
>                 [SCBRR]         = { 0x01,  8 },
>                 [SCSCR]         = { 0x02,  8 },
>                 [SCxTDR]        = { 0x03,  8 },
>                 [SCxSR]         = { 0x04,  8 },
>                 [SCxRDR]        = { 0x05,  8 },
>                 [SCFCR]         = { 0x06,  8 },
>                 [SCFDR]         = { 0x07, 16 },
> 
> While the datasheet says:
> 
>         SCSMR1  H'A4000140      8 bits
>         SCBRR1  H'A4000142      8 bits
>         SCSCR1  H'A4000144      8 bits
>         SCFTDR1 H'A4000146      8 bits
>         SCSSR1  H'A4000148      16 bits
>         SCFRDR1 H'A400014A      8 bits
>         SCFCR1  H'A400014C      8 bits
>         SCFDR1  H'A400014E      16 bits
> 
> So you do need regshift = 1 to handle the gaps.
> 
> Note that SCSSR1 is a 16-bit registers, while SCIx_IRDA_REGTYPE
> declares it as 8-bit, so it may not work at all...
> 
> Ah, you're fixing all this in "[PATCH 19/19] serial: sh-sci: Compute the
> regshift value for SCI ports".
> I think that part should be moved to this patch, to not break bisection.

Yes, I realized that after sending the series. If you think we need to care 
about bisection here (given that it seems that sh-sci hasn't been tested on SH 
since at least v3.1...) we can fix that.

> >  static struct resource scif2_resources[] = {
> > -       DEFINE_RES_MEM(0xa4000140, 0x10),
> > +       DEFINE_RES_MEM(0xa4000140, 0x20),
> >         DEFINE_RES_IRQ(evt2irq(0x880)),
> >  };
> 
> According to the register list above, resource size 0x10 is correct.

I'll fix this.

-- 
Regards,

Laurent Pinchart

[PATCH v1.1 08/19] serial: sh-sci: Fix register offsets for the IRDA serial port

[Laurent Pinchart]

Even though most of its registers are 8-bit wide, the IRDA has two
16-bit registers that make it a 16-bit peripheral and not a 8-bit
peripheral with addresses shifted by one. Fix the registers offset in
the driver and the platform data regshift value.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh3/setup-sh770x.c |  1 -
 drivers/tty/serial/sh-sci.c           | 17 ++++++++---------
 2 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index e1e54258b822..592cd9ab30c4 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -157,7 +157,6 @@ static struct platform_device scif1_device = {
 static struct plat_sci_port scif2_platform_data = {
 	.type		= PORT_IRDA,
 	.ops		= &sh770x_sci_port_ops,
-	.regshift	= 1,
 };
 
 static struct resource scif2_resources[] = {
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 8c58c43fc85d..1eb91ba43b2e 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -193,18 +193,17 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 	},
 
 	/*
-	 * Common definitions for legacy IrDA ports, dependent on
-	 * regshift value.
+	 * Common definitions for legacy IrDA ports.
 	 */
 	[SCIx_IRDA_REGTYPE] = {
 		[SCSMR]		= { 0x00,  8 },
-		[SCBRR]		= { 0x01,  8 },
-		[SCSCR]		= { 0x02,  8 },
-		[SCxTDR]	= { 0x03,  8 },
-		[SCxSR]		= { 0x04,  8 },
-		[SCxRDR]	= { 0x05,  8 },
-		[SCFCR]		= { 0x06,  8 },
-		[SCFDR]		= { 0x07, 16 },
+		[SCBRR]		= { 0x02,  8 },
+		[SCSCR]		= { 0x04,  8 },
+		[SCxTDR]	= { 0x06,  8 },
+		[SCxSR]		= { 0x08,  8 },
+		[SCxRDR]	= { 0x0a,  8 },
+		[SCFCR]		= { 0x0c,  8 },
+		[SCFDR]		= { 0x0e, 16 },
 		[SCTFDR]	= sci_reg_invalid,
 		[SCRFDR]	= sci_reg_invalid,
 		[SCSPTR]	= sci_reg_invalid,
-- 
Regards,

Laurent Pinchart

Re: [PATCH v1.1 08/19] serial: sh-sci: Fix register offsets for the IRDA serial port

[Geert Uytterhoeven]

Hi Laurent,

On Fri, Jan 6, 2017 at 12:52 PM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> Even though most of its registers are 8-bit wide, the IRDA has two
> 16-bit registers that make it a 16-bit peripheral and not a 8-bit
> peripheral with addresses shifted by one. Fix the registers offset in
> the driver and the platform data regshift value.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> --- a/drivers/tty/serial/sh-sci.c
> +++ b/drivers/tty/serial/sh-sci.c
> @@ -193,18 +193,17 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
>         },
>
>         /*
> -        * Common definitions for legacy IrDA ports, dependent on
> -        * regshift value.
> +        * Common definitions for legacy IrDA ports.
>          */
>         [SCIx_IRDA_REGTYPE] = {
>                 [SCSMR]         = { 0x00,  8 },
> -               [SCBRR]         = { 0x01,  8 },
> -               [SCSCR]         = { 0x02,  8 },
> -               [SCxTDR]        = { 0x03,  8 },
> -               [SCxSR]         = { 0x04,  8 },
> -               [SCxRDR]        = { 0x05,  8 },
> -               [SCFCR]         = { 0x06,  8 },
> -               [SCFDR]         = { 0x07, 16 },
> +               [SCBRR]         = { 0x02,  8 },
> +               [SCSCR]         = { 0x04,  8 },
> +               [SCxTDR]        = { 0x06,  8 },
> +               [SCxSR]         = { 0x08,  8 },

SCSCR is a 16-bit register. You did have that correct in v1 of patch 19.

If you fix that:

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

> +               [SCxRDR]        = { 0x0a,  8 },
> +               [SCFCR]         = { 0x0c,  8 },
> +               [SCFDR]         = { 0x0e, 16 },

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 09/19] sh: Don't set the sh-sci platform data regshift field

[Laurent Pinchart]

The regshift value is computed automatically by the driver, there's no
need to set it in platform data. Specify the associated memory resource
lengths to ensure proper computation of the value.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh3/setup-sh770x.c |  1 -
 arch/sh/kernel/cpu/sh4/setup-sh7750.c |  3 +--
 arch/sh/kernel/cpu/sh4/setup-sh7760.c | 10 ++++++++--
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index 084a91e6027e..e2a48e957cba 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -111,7 +111,6 @@ static struct platform_device rtc_device = {
 static struct plat_sci_port scif0_platform_data = {
 	.type		= PORT_SCI,
 	.ops		= &sh770x_sci_port_ops,
-	.regshift	= 1,
 };
 
 static struct resource scif0_resources[] = {
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index d98a55416306..57d30689204d 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -39,11 +39,10 @@ static struct platform_device rtc_device = {
 
 static struct plat_sci_port sci_platform_data = {
 	.type		= PORT_SCI,
-	.regshift	= 2,
 };
 
 static struct resource sci_resources[] = {
-	DEFINE_RES_MEM(0xffe00000, 0x100),
+	DEFINE_RES_MEM(0xffe00000, 0x20),
 	DEFINE_RES_IRQ(evt2irq(0x4e0)),
 };
 
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
index 641b85865a63..6dbcbf1621aa 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -201,12 +201,18 @@ static struct platform_device scif2_device = {
 
 static struct plat_sci_port scif3_platform_data = {
 	.scscr		= SCSCR_REIE,
+	/*
+	 * This is actually a SIM card module serial port, based on an SCI with
+	 * additional registers. The sh-sci driver doesn't support the SIM port
+	 * type, declare it as a SCI. Don't declare the additional registers in
+	 * the memory resource or the driver will compute an incorrect regshift
+	 * value.
+	 */
 	.type		= PORT_SCI,
-	.regshift	= 2,
 };
 
 static struct resource scif3_resources[] = {
-	DEFINE_RES_MEM(0xfe480000, 0x100),
+	DEFINE_RES_MEM(0xfe480000, 0x10),
 	DEFINE_RES_IRQ(evt2irq(0xc00)),
 	DEFINE_RES_IRQ(evt2irq(0xc20)),
 	DEFINE_RES_IRQ(evt2irq(0xc40)),
-- 
Regards,

Laurent Pinchart

Re: [PATCH 09/19] sh: Don't set the sh-sci platform data regshift field

[Geert Uytterhoeven]

Hi Laurent,

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The regshift value is computed automatically by the driver, there's no
> need to set it in platform data. Specify the associated memory resource
> lengths to ensure proper computation of the value.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Doing this separate from "[PATCH 19/19] serial: sh-sci: Compute the regshift
value for SCI ports") breaks bisection.

> --- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
> +++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
> @@ -201,12 +201,18 @@ static struct platform_device scif2_device = {
>
>  static struct plat_sci_port scif3_platform_data = {
>         .scscr          = SCSCR_REIE,
> +       /*
> +        * This is actually a SIM card module serial port, based on an SCI with
> +        * additional registers. The sh-sci driver doesn't support the SIM port
> +        * type, declare it as a SCI. Don't declare the additional registers in
> +        * the memory resource or the driver will compute an incorrect regshift
> +        * value.
> +        */
>         .type           = PORT_SCI,
> -       .regshift       = 2,

Yeah, that regshift value doesn't match the datasheet at all
(should have been 1 before).

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 10/19] sh: Don't set the sh-sci platform data scscr CKE0 bit

[Laurent Pinchart]

The bit is only set by platforms that also set the CKE1 but, in which
case its value is ignored by the device. Don't set it, this simplifies
platform data and only leaves the CKE1 bit to be handled.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh3/setup-sh7705.c | 2 +-
 arch/sh/kernel/cpu/sh3/setup-sh7710.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
index a60edd8f3db7..f6e392e0d27e 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
@@ -70,7 +70,7 @@ static DECLARE_INTC_DESC(intc_desc, "sh7705", vectors, NULL,
 			 NULL, prio_registers, NULL);
 
 static struct plat_sci_port scif0_platform_data = {
-	.scscr		= SCSCR_CKE1 | SCSCR_CKE0,
+	.scscr		= SCSCR_CKE1,
 	.type		= PORT_SCIF,
 	.ops		= &sh770x_sci_port_ops,
 	.regtype	= SCIx_SH7705_SCIF_REGTYPE,
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
index ac2a0aabcec5..ea52410b430d 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh7710.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
@@ -98,7 +98,7 @@ static struct platform_device rtc_device = {
 };
 
 static struct plat_sci_port scif0_platform_data = {
-	.scscr		= SCSCR_REIE | SCSCR_CKE1 | SCSCR_CKE0,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 };
 
@@ -118,7 +118,7 @@ static struct platform_device scif0_device = {
 };
 
 static struct plat_sci_port scif1_platform_data = {
-	.scscr		= SCSCR_REIE | SCSCR_CKE1 | SCSCR_CKE0,
+	.scscr		= SCSCR_REIE | SCSCR_CKE1,
 	.type		= PORT_SCIF,
 };
 
-- 
Regards,

Laurent Pinchart

Re: [PATCH 10/19] sh: Don't set the sh-sci platform data scscr CKE0 bit

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The bit is only set by platforms that also set the CKE1 but, in which
> case its value is ignored by the device. Don't set it, this simplifies
> platform data and only leaves the CKE1 bit to be handled.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 11/19] sh: Don't set the sh-sci platform data REIE bit when not implemented

[Laurent Pinchart]

According to the datasheets, the sh7760 SIM and sh7723 SCIFA instances
don't implement the REIE bit. Don't set it in platform data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh4/setup-sh7760.c  | 1 -
 arch/sh/kernel/cpu/sh4a/setup-sh7723.c | 3 ---
 2 files changed, 4 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
index 6dbcbf1621aa..e51fe1734e13 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -200,7 +200,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.scscr		= SCSCR_REIE,
 	/*
 	 * This is actually a SIM card module serial port, based on an SCI with
 	 * additional registers. The sh-sci driver doesn't support the SIM port
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index 6c5cb234aa33..1c1b3c469831 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -86,7 +86,6 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
-	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -107,7 +106,6 @@ static struct platform_device scif3_device = {
 };
 
 static struct plat_sci_port scif4_platform_data = {
-	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
@@ -128,7 +126,6 @@ static struct platform_device scif4_device = {
 };
 
 static struct plat_sci_port scif5_platform_data = {
-	.scscr		= SCSCR_REIE,
 	.sampling_rate	= 8,
 	.type           = PORT_SCIFA,
 };
-- 
Regards,

Laurent Pinchart

Re: [PATCH 11/19] sh: Don't set the sh-sci platform data REIE bit when not implemented

[Geert Uytterhoeven]

Hi Laurent,

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> According to the datasheets, the sh7760 SIM and sh7723 SCIFA instances
> don't implement the REIE bit. Don't set it in platform data.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

> ---
>  arch/sh/kernel/cpu/sh4/setup-sh7760.c  | 1 -
>  arch/sh/kernel/cpu/sh4a/setup-sh7723.c | 3 ---
>  2 files changed, 4 deletions(-)
>
> diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
> index 6dbcbf1621aa..e51fe1734e13 100644
> --- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
> +++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
> @@ -200,7 +200,6 @@ static struct platform_device scif2_device = {
>  };
>
>  static struct plat_sci_port scif3_platform_data = {
> -       .scscr          = SCSCR_REIE,

Note that this bit does have a function (WAIT_IE --- Enables wait error
interrupt (SIMERI) requests), so this may impact behavior.

>         /*
>          * This is actually a SIM card module serial port, based on an SCI with
>          * additional registers. The sh-sci driver doesn't support the SIM port

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 12/19] serial: sh-sci: Remove initialization of zero fields in sci_port_params

[Laurent Pinchart]

The compiler zeros uninitialized fields, don't zero them manually.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/tty/serial/sh-sci.c | 94 ---------------------------------------------
 1 file changed, 94 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 8c58c43fc85d..3da00f432c73 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -160,14 +160,7 @@ struct plat_sci_reg {
 	u8 offset, size;
 };
 
-/* Helper for invalidating specific entries of an inherited map. */
-#define sci_reg_invalid	{ .offset = 0, .size = 0 }
-
 static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
-	[SCIx_PROBE_REGTYPE] = {
-		[0 ... SCIx_NR_REGS - 1] = sci_reg_invalid,
-	},
-
 	/*
 	 * Common SCI definitions, dependent on the port's regshift
 	 * value.
@@ -179,17 +172,6 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxTDR]	= { 0x03,  8 },
 		[SCxSR]		= { 0x04,  8 },
 		[SCxRDR]	= { 0x05,  8 },
-		[SCFCR]		= sci_reg_invalid,
-		[SCFDR]		= sci_reg_invalid,
-		[SCTFDR]	= sci_reg_invalid,
-		[SCRFDR]	= sci_reg_invalid,
-		[SCSPTR]	= sci_reg_invalid,
-		[SCLSR]		= sci_reg_invalid,
-		[HSSRR]		= sci_reg_invalid,
-		[SCPCR]		= sci_reg_invalid,
-		[SCPDR]		= sci_reg_invalid,
-		[SCDL]		= sci_reg_invalid,
-		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -205,15 +187,6 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxRDR]	= { 0x05,  8 },
 		[SCFCR]		= { 0x06,  8 },
 		[SCFDR]		= { 0x07, 16 },
-		[SCTFDR]	= sci_reg_invalid,
-		[SCRFDR]	= sci_reg_invalid,
-		[SCSPTR]	= sci_reg_invalid,
-		[SCLSR]		= sci_reg_invalid,
-		[HSSRR]		= sci_reg_invalid,
-		[SCPCR]		= sci_reg_invalid,
-		[SCPDR]		= sci_reg_invalid,
-		[SCDL]		= sci_reg_invalid,
-		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -228,15 +201,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxRDR]	= { 0x24,  8 },
 		[SCFCR]		= { 0x18, 16 },
 		[SCFDR]		= { 0x1c, 16 },
-		[SCTFDR]	= sci_reg_invalid,
-		[SCRFDR]	= sci_reg_invalid,
-		[SCSPTR]	= sci_reg_invalid,
-		[SCLSR]		= sci_reg_invalid,
-		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= { 0x30, 16 },
 		[SCPDR]		= { 0x34, 16 },
-		[SCDL]		= sci_reg_invalid,
-		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -250,16 +216,10 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxSR]		= { 0x14, 16 },
 		[SCxRDR]	= { 0x60,  8 },
 		[SCFCR]		= { 0x18, 16 },
-		[SCFDR]		= sci_reg_invalid,
 		[SCTFDR]	= { 0x38, 16 },
 		[SCRFDR]	= { 0x3c, 16 },
-		[SCSPTR]	= sci_reg_invalid,
-		[SCLSR]		= sci_reg_invalid,
-		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= { 0x30, 16 },
 		[SCPDR]		= { 0x34, 16 },
-		[SCDL]		= sci_reg_invalid,
-		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -275,15 +235,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxRDR]	= { 0x14,  8 },
 		[SCFCR]		= { 0x18, 16 },
 		[SCFDR]		= { 0x1c, 16 },
-		[SCTFDR]	= sci_reg_invalid,
-		[SCRFDR]	= sci_reg_invalid,
 		[SCSPTR]	= { 0x20, 16 },
 		[SCLSR]		= { 0x24, 16 },
-		[HSSRR]		= sci_reg_invalid,
-		[SCPCR]		= sci_reg_invalid,
-		[SCPDR]		= sci_reg_invalid,
-		[SCDL]		= sci_reg_invalid,
-		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -298,15 +251,6 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxRDR]	= { 0x0a,  8 },
 		[SCFCR]		= { 0x0c,  8 },
 		[SCFDR]		= { 0x0e, 16 },
-		[SCTFDR]	= sci_reg_invalid,
-		[SCRFDR]	= sci_reg_invalid,
-		[SCSPTR]	= sci_reg_invalid,
-		[SCLSR]		= sci_reg_invalid,
-		[HSSRR]		= sci_reg_invalid,
-		[SCPCR]		= sci_reg_invalid,
-		[SCPDR]		= sci_reg_invalid,
-		[SCDL]		= sci_reg_invalid,
-		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -321,15 +265,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxRDR]	= { 0x14,  8 },
 		[SCFCR]		= { 0x18, 16 },
 		[SCFDR]		= { 0x1c, 16 },
-		[SCTFDR]	= sci_reg_invalid,
-		[SCRFDR]	= sci_reg_invalid,
 		[SCSPTR]	= { 0x20, 16 },
 		[SCLSR]		= { 0x24, 16 },
-		[HSSRR]		= sci_reg_invalid,
-		[SCPCR]		= sci_reg_invalid,
-		[SCPDR]		= sci_reg_invalid,
-		[SCDL]		= sci_reg_invalid,
-		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -345,13 +282,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxRDR]	= { 0x14,  8 },
 		[SCFCR]		= { 0x18, 16 },
 		[SCFDR]		= { 0x1c, 16 },
-		[SCTFDR]	= sci_reg_invalid,
-		[SCRFDR]	= sci_reg_invalid,
 		[SCSPTR]	= { 0x20, 16 },
 		[SCLSR]		= { 0x24, 16 },
-		[HSSRR]		= sci_reg_invalid,
-		[SCPCR]		= sci_reg_invalid,
-		[SCPDR]		= sci_reg_invalid,
 		[SCDL]		= { 0x30, 16 },
 		[SCCKS]		= { 0x34, 16 },
 	},
@@ -368,13 +300,9 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxRDR]	= { 0x14,  8 },
 		[SCFCR]		= { 0x18, 16 },
 		[SCFDR]		= { 0x1c, 16 },
-		[SCTFDR]	= sci_reg_invalid,
-		[SCRFDR]	= sci_reg_invalid,
 		[SCSPTR]	= { 0x20, 16 },
 		[SCLSR]		= { 0x24, 16 },
 		[HSSRR]		= { 0x40, 16 },
-		[SCPCR]		= sci_reg_invalid,
-		[SCPDR]		= sci_reg_invalid,
 		[SCDL]		= { 0x30, 16 },
 		[SCCKS]		= { 0x34, 16 },
 	},
@@ -392,15 +320,7 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxRDR]	= { 0x14,  8 },
 		[SCFCR]		= { 0x18, 16 },
 		[SCFDR]		= { 0x1c, 16 },
-		[SCTFDR]	= sci_reg_invalid,
-		[SCRFDR]	= sci_reg_invalid,
-		[SCSPTR]	= sci_reg_invalid,
 		[SCLSR]		= { 0x24, 16 },
-		[HSSRR]		= sci_reg_invalid,
-		[SCPCR]		= sci_reg_invalid,
-		[SCPDR]		= sci_reg_invalid,
-		[SCDL]		= sci_reg_invalid,
-		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -420,11 +340,6 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCRFDR]	= { 0x20, 16 },
 		[SCSPTR]	= { 0x24, 16 },
 		[SCLSR]		= { 0x28, 16 },
-		[HSSRR]		= sci_reg_invalid,
-		[SCPCR]		= sci_reg_invalid,
-		[SCPDR]		= sci_reg_invalid,
-		[SCDL]		= sci_reg_invalid,
-		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -440,15 +355,6 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[SCxRDR]	= { 0x24,  8 },
 		[SCFCR]		= { 0x18, 16 },
 		[SCFDR]		= { 0x1c, 16 },
-		[SCTFDR]	= sci_reg_invalid,
-		[SCRFDR]	= sci_reg_invalid,
-		[SCSPTR]	= sci_reg_invalid,
-		[SCLSR]		= sci_reg_invalid,
-		[HSSRR]		= sci_reg_invalid,
-		[SCPCR]		= sci_reg_invalid,
-		[SCPDR]		= sci_reg_invalid,
-		[SCDL]		= sci_reg_invalid,
-		[SCCKS]		= sci_reg_invalid,
 	},
 };
 
-- 
Regards,

Laurent Pinchart

Re: [PATCH 12/19] serial: sh-sci: Remove initialization of zero fields in sci_port_params

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The compiler zeros uninitialized fields, don't zero them manually.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 13/19] serial: sh-sci: Replace regmap array with port parameters

[Laurent Pinchart]

Turn the regmap two-dimensional array to an array of port parameters and
store a pointer to the port parameters in the sci_port structure. This
will allow handling additional port type dependent parameters.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/tty/serial/sh-sci.c | 278 ++++++++++++++++++++++++--------------------
 1 file changed, 155 insertions(+), 123 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 3da00f432c73..be86f78a5c02 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -101,10 +101,19 @@ enum SCI_CLKS {
 	for ((_sr) = max_sr(_port); (_sr) >= min_sr(_port); (_sr)--)	\
 		if ((_port)->sampling_rate_mask & SCI_SR((_sr)))
 
+struct plat_sci_reg {
+	u8 offset, size;
+};
+
+struct sci_port_params {
+	const struct plat_sci_reg regs[SCIx_NR_REGS];
+};
+
 struct sci_port {
 	struct uart_port	port;
 
 	/* Platform configuration */
+	const struct sci_port_params *params;
 	struct plat_sci_port	*cfg;
 	unsigned int		overrun_reg;
 	unsigned int		overrun_mask;
@@ -156,22 +165,20 @@ to_sci_port(struct uart_port *uart)
 	return container_of(uart, struct sci_port, port);
 }
 
-struct plat_sci_reg {
-	u8 offset, size;
-};
-
-static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
+static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 	/*
 	 * Common SCI definitions, dependent on the port's regshift
 	 * value.
 	 */
 	[SCIx_SCI_REGTYPE] = {
-		[SCSMR]		= { 0x00,  8 },
-		[SCBRR]		= { 0x01,  8 },
-		[SCSCR]		= { 0x02,  8 },
-		[SCxTDR]	= { 0x03,  8 },
-		[SCxSR]		= { 0x04,  8 },
-		[SCxRDR]	= { 0x05,  8 },
+		.regs = {
+			[SCSMR]		= { 0x00,  8 },
+			[SCBRR]		= { 0x01,  8 },
+			[SCSCR]		= { 0x02,  8 },
+			[SCxTDR]	= { 0x03,  8 },
+			[SCxSR]		= { 0x04,  8 },
+			[SCxRDR]	= { 0x05,  8 },
+		},
 	},
 
 	/*
@@ -179,47 +186,53 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 	 * regshift value.
 	 */
 	[SCIx_IRDA_REGTYPE] = {
-		[SCSMR]		= { 0x00,  8 },
-		[SCBRR]		= { 0x01,  8 },
-		[SCSCR]		= { 0x02,  8 },
-		[SCxTDR]	= { 0x03,  8 },
-		[SCxSR]		= { 0x04,  8 },
-		[SCxRDR]	= { 0x05,  8 },
-		[SCFCR]		= { 0x06,  8 },
-		[SCFDR]		= { 0x07, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00,  8 },
+			[SCBRR]		= { 0x01,  8 },
+			[SCSCR]		= { 0x02,  8 },
+			[SCxTDR]	= { 0x03,  8 },
+			[SCxSR]		= { 0x04,  8 },
+			[SCxRDR]	= { 0x05,  8 },
+			[SCFCR]		= { 0x06,  8 },
+			[SCFDR]		= { 0x07, 16 },
+		},
 	},
 
 	/*
 	 * Common SCIFA definitions.
 	 */
 	[SCIx_SCIFA_REGTYPE] = {
-		[SCSMR]		= { 0x00, 16 },
-		[SCBRR]		= { 0x04,  8 },
-		[SCSCR]		= { 0x08, 16 },
-		[SCxTDR]	= { 0x20,  8 },
-		[SCxSR]		= { 0x14, 16 },
-		[SCxRDR]	= { 0x24,  8 },
-		[SCFCR]		= { 0x18, 16 },
-		[SCFDR]		= { 0x1c, 16 },
-		[SCPCR]		= { 0x30, 16 },
-		[SCPDR]		= { 0x34, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00, 16 },
+			[SCBRR]		= { 0x04,  8 },
+			[SCSCR]		= { 0x08, 16 },
+			[SCxTDR]	= { 0x20,  8 },
+			[SCxSR]		= { 0x14, 16 },
+			[SCxRDR]	= { 0x24,  8 },
+			[SCFCR]		= { 0x18, 16 },
+			[SCFDR]		= { 0x1c, 16 },
+			[SCPCR]		= { 0x30, 16 },
+			[SCPDR]		= { 0x34, 16 },
+		},
 	},
 
 	/*
 	 * Common SCIFB definitions.
 	 */
 	[SCIx_SCIFB_REGTYPE] = {
-		[SCSMR]		= { 0x00, 16 },
-		[SCBRR]		= { 0x04,  8 },
-		[SCSCR]		= { 0x08, 16 },
-		[SCxTDR]	= { 0x40,  8 },
-		[SCxSR]		= { 0x14, 16 },
-		[SCxRDR]	= { 0x60,  8 },
-		[SCFCR]		= { 0x18, 16 },
-		[SCTFDR]	= { 0x38, 16 },
-		[SCRFDR]	= { 0x3c, 16 },
-		[SCPCR]		= { 0x30, 16 },
-		[SCPDR]		= { 0x34, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00, 16 },
+			[SCBRR]		= { 0x04,  8 },
+			[SCSCR]		= { 0x08, 16 },
+			[SCxTDR]	= { 0x40,  8 },
+			[SCxSR]		= { 0x14, 16 },
+			[SCxRDR]	= { 0x60,  8 },
+			[SCFCR]		= { 0x18, 16 },
+			[SCTFDR]	= { 0x38, 16 },
+			[SCRFDR]	= { 0x3c, 16 },
+			[SCPCR]		= { 0x30, 16 },
+			[SCPDR]		= { 0x34, 16 },
+		},
 	},
 
 	/*
@@ -227,46 +240,52 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 	 * count registers.
 	 */
 	[SCIx_SH2_SCIF_FIFODATA_REGTYPE] = {
-		[SCSMR]		= { 0x00, 16 },
-		[SCBRR]		= { 0x04,  8 },
-		[SCSCR]		= { 0x08, 16 },
-		[SCxTDR]	= { 0x0c,  8 },
-		[SCxSR]		= { 0x10, 16 },
-		[SCxRDR]	= { 0x14,  8 },
-		[SCFCR]		= { 0x18, 16 },
-		[SCFDR]		= { 0x1c, 16 },
-		[SCSPTR]	= { 0x20, 16 },
-		[SCLSR]		= { 0x24, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00, 16 },
+			[SCBRR]		= { 0x04,  8 },
+			[SCSCR]		= { 0x08, 16 },
+			[SCxTDR]	= { 0x0c,  8 },
+			[SCxSR]		= { 0x10, 16 },
+			[SCxRDR]	= { 0x14,  8 },
+			[SCFCR]		= { 0x18, 16 },
+			[SCFDR]		= { 0x1c, 16 },
+			[SCSPTR]	= { 0x20, 16 },
+			[SCLSR]		= { 0x24, 16 },
+		},
 	},
 
 	/*
 	 * Common SH-3 SCIF definitions.
 	 */
 	[SCIx_SH3_SCIF_REGTYPE] = {
-		[SCSMR]		= { 0x00,  8 },
-		[SCBRR]		= { 0x02,  8 },
-		[SCSCR]		= { 0x04,  8 },
-		[SCxTDR]	= { 0x06,  8 },
-		[SCxSR]		= { 0x08, 16 },
-		[SCxRDR]	= { 0x0a,  8 },
-		[SCFCR]		= { 0x0c,  8 },
-		[SCFDR]		= { 0x0e, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00,  8 },
+			[SCBRR]		= { 0x02,  8 },
+			[SCSCR]		= { 0x04,  8 },
+			[SCxTDR]	= { 0x06,  8 },
+			[SCxSR]		= { 0x08, 16 },
+			[SCxRDR]	= { 0x0a,  8 },
+			[SCFCR]		= { 0x0c,  8 },
+			[SCFDR]		= { 0x0e, 16 },
+		},
 	},
 
 	/*
 	 * Common SH-4(A) SCIF(B) definitions.
 	 */
 	[SCIx_SH4_SCIF_REGTYPE] = {
-		[SCSMR]		= { 0x00, 16 },
-		[SCBRR]		= { 0x04,  8 },
-		[SCSCR]		= { 0x08, 16 },
-		[SCxTDR]	= { 0x0c,  8 },
-		[SCxSR]		= { 0x10, 16 },
-		[SCxRDR]	= { 0x14,  8 },
-		[SCFCR]		= { 0x18, 16 },
-		[SCFDR]		= { 0x1c, 16 },
-		[SCSPTR]	= { 0x20, 16 },
-		[SCLSR]		= { 0x24, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00, 16 },
+			[SCBRR]		= { 0x04,  8 },
+			[SCSCR]		= { 0x08, 16 },
+			[SCxTDR]	= { 0x0c,  8 },
+			[SCxSR]		= { 0x10, 16 },
+			[SCxRDR]	= { 0x14,  8 },
+			[SCFCR]		= { 0x18, 16 },
+			[SCFDR]		= { 0x1c, 16 },
+			[SCSPTR]	= { 0x20, 16 },
+			[SCLSR]		= { 0x24, 16 },
+		},
 	},
 
 	/*
@@ -274,37 +293,41 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 	 * External Clock (BRG).
 	 */
 	[SCIx_SH4_SCIF_BRG_REGTYPE] = {
-		[SCSMR]		= { 0x00, 16 },
-		[SCBRR]		= { 0x04,  8 },
-		[SCSCR]		= { 0x08, 16 },
-		[SCxTDR]	= { 0x0c,  8 },
-		[SCxSR]		= { 0x10, 16 },
-		[SCxRDR]	= { 0x14,  8 },
-		[SCFCR]		= { 0x18, 16 },
-		[SCFDR]		= { 0x1c, 16 },
-		[SCSPTR]	= { 0x20, 16 },
-		[SCLSR]		= { 0x24, 16 },
-		[SCDL]		= { 0x30, 16 },
-		[SCCKS]		= { 0x34, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00, 16 },
+			[SCBRR]		= { 0x04,  8 },
+			[SCSCR]		= { 0x08, 16 },
+			[SCxTDR]	= { 0x0c,  8 },
+			[SCxSR]		= { 0x10, 16 },
+			[SCxRDR]	= { 0x14,  8 },
+			[SCFCR]		= { 0x18, 16 },
+			[SCFDR]		= { 0x1c, 16 },
+			[SCSPTR]	= { 0x20, 16 },
+			[SCLSR]		= { 0x24, 16 },
+			[SCDL]		= { 0x30, 16 },
+			[SCCKS]		= { 0x34, 16 },
+		},
 	},
 
 	/*
 	 * Common HSCIF definitions.
 	 */
 	[SCIx_HSCIF_REGTYPE] = {
-		[SCSMR]		= { 0x00, 16 },
-		[SCBRR]		= { 0x04,  8 },
-		[SCSCR]		= { 0x08, 16 },
-		[SCxTDR]	= { 0x0c,  8 },
-		[SCxSR]		= { 0x10, 16 },
-		[SCxRDR]	= { 0x14,  8 },
-		[SCFCR]		= { 0x18, 16 },
-		[SCFDR]		= { 0x1c, 16 },
-		[SCSPTR]	= { 0x20, 16 },
-		[SCLSR]		= { 0x24, 16 },
-		[HSSRR]		= { 0x40, 16 },
-		[SCDL]		= { 0x30, 16 },
-		[SCCKS]		= { 0x34, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00, 16 },
+			[SCBRR]		= { 0x04,  8 },
+			[SCSCR]		= { 0x08, 16 },
+			[SCxTDR]	= { 0x0c,  8 },
+			[SCxSR]		= { 0x10, 16 },
+			[SCxRDR]	= { 0x14,  8 },
+			[SCFCR]		= { 0x18, 16 },
+			[SCFDR]		= { 0x1c, 16 },
+			[SCSPTR]	= { 0x20, 16 },
+			[SCLSR]		= { 0x24, 16 },
+			[HSSRR]		= { 0x40, 16 },
+			[SCDL]		= { 0x30, 16 },
+			[SCCKS]		= { 0x34, 16 },
+		},
 	},
 
 	/*
@@ -312,15 +335,17 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 	 * register.
 	 */
 	[SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE] = {
-		[SCSMR]		= { 0x00, 16 },
-		[SCBRR]		= { 0x04,  8 },
-		[SCSCR]		= { 0x08, 16 },
-		[SCxTDR]	= { 0x0c,  8 },
-		[SCxSR]		= { 0x10, 16 },
-		[SCxRDR]	= { 0x14,  8 },
-		[SCFCR]		= { 0x18, 16 },
-		[SCFDR]		= { 0x1c, 16 },
-		[SCLSR]		= { 0x24, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00, 16 },
+			[SCBRR]		= { 0x04,  8 },
+			[SCSCR]		= { 0x08, 16 },
+			[SCxTDR]	= { 0x0c,  8 },
+			[SCxSR]		= { 0x10, 16 },
+			[SCxRDR]	= { 0x14,  8 },
+			[SCFCR]		= { 0x18, 16 },
+			[SCFDR]		= { 0x1c, 16 },
+			[SCLSR]		= { 0x24, 16 },
+		},
 	},
 
 	/*
@@ -328,18 +353,20 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 	 * count registers.
 	 */
 	[SCIx_SH4_SCIF_FIFODATA_REGTYPE] = {
-		[SCSMR]		= { 0x00, 16 },
-		[SCBRR]		= { 0x04,  8 },
-		[SCSCR]		= { 0x08, 16 },
-		[SCxTDR]	= { 0x0c,  8 },
-		[SCxSR]		= { 0x10, 16 },
-		[SCxRDR]	= { 0x14,  8 },
-		[SCFCR]		= { 0x18, 16 },
-		[SCFDR]		= { 0x1c, 16 },
-		[SCTFDR]	= { 0x1c, 16 },	/* aliased to SCFDR */
-		[SCRFDR]	= { 0x20, 16 },
-		[SCSPTR]	= { 0x24, 16 },
-		[SCLSR]		= { 0x28, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00, 16 },
+			[SCBRR]		= { 0x04,  8 },
+			[SCSCR]		= { 0x08, 16 },
+			[SCxTDR]	= { 0x0c,  8 },
+			[SCxSR]		= { 0x10, 16 },
+			[SCxRDR]	= { 0x14,  8 },
+			[SCFCR]		= { 0x18, 16 },
+			[SCFDR]		= { 0x1c, 16 },
+			[SCTFDR]	= { 0x1c, 16 },	/* aliased to SCFDR */
+			[SCRFDR]	= { 0x20, 16 },
+			[SCSPTR]	= { 0x24, 16 },
+			[SCLSR]		= { 0x28, 16 },
+		},
 	},
 
 	/*
@@ -347,18 +374,20 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 	 * registers.
 	 */
 	[SCIx_SH7705_SCIF_REGTYPE] = {
-		[SCSMR]		= { 0x00, 16 },
-		[SCBRR]		= { 0x04,  8 },
-		[SCSCR]		= { 0x08, 16 },
-		[SCxTDR]	= { 0x20,  8 },
-		[SCxSR]		= { 0x14, 16 },
-		[SCxRDR]	= { 0x24,  8 },
-		[SCFCR]		= { 0x18, 16 },
-		[SCFDR]		= { 0x1c, 16 },
+		.regs = {
+			[SCSMR]		= { 0x00, 16 },
+			[SCBRR]		= { 0x04,  8 },
+			[SCSCR]		= { 0x08, 16 },
+			[SCxTDR]	= { 0x20,  8 },
+			[SCxSR]		= { 0x14, 16 },
+			[SCxRDR]	= { 0x24,  8 },
+			[SCFCR]		= { 0x18, 16 },
+			[SCFDR]		= { 0x1c, 16 },
+		},
 	},
 };
 
-#define sci_getreg(up, offset)		(sci_regmap[to_sci_port(up)->cfg->regtype] + offset)
+#define sci_getreg(up, offset)		(&to_sci_port(up)->params->regs[offset])
 
 /*
  * The "offset" here is rather misleading, in that it refers to an enum
@@ -2556,6 +2585,8 @@ static int sci_init_single(struct platform_device *dev,
 			return ret;
 	}
 
+	sci_port->params = &sci_port_params[p->regtype];
+
 	switch (p->type) {
 	case PORT_SCIFB:
 		port->fifosize = 256;
@@ -3068,6 +3099,7 @@ static int __init early_console_setup(struct earlycon_device *device,
 	sci_ports[0].cfg = &port_cfg;
 	sci_ports[0].cfg->type = type;
 	sci_probe_regmap(sci_ports[0].cfg);
+	sci_ports[0].params = &sci_port_params[sci_ports[0].cfg->regtype];
 	port_cfg.scscr = sci_serial_in(&sci_ports[0].port, SCSCR);
 	sci_serial_out(&sci_ports[0].port, SCSCR,
 		       SCSCR_RE | SCSCR_TE | port_cfg.scscr);
-- 
Regards,

Laurent Pinchart

Re: [PATCH 13/19] serial: sh-sci: Replace regmap array with port parameters

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> Turn the regmap two-dimensional array to an array of port parameters and
> store a pointer to the port parameters in the sci_port structure. This
> will allow handling additional port type dependent parameters.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 14/19] serial: sh-sci: Constify platform data

[Laurent Pinchart]

The driver modifies platform data for internal purpose only. Fix that
and make the platform data structure const.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/tty/serial/sh-sci.c | 97 +++++++++++++++++++++++----------------------
 1 file changed, 49 insertions(+), 48 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index be86f78a5c02..285d0c726ca3 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -114,7 +114,7 @@ struct sci_port {
 
 	/* Platform configuration */
 	const struct sci_port_params *params;
-	struct plat_sci_port	*cfg;
+	const struct plat_sci_port *cfg;
 	unsigned int		overrun_reg;
 	unsigned int		overrun_mask;
 	unsigned int		error_mask;
@@ -421,41 +421,6 @@ static void sci_serial_out(struct uart_port *p, int offset, int value)
 		WARN(1, "Invalid register access\n");
 }
 
-static int sci_probe_regmap(struct plat_sci_port *cfg)
-{
-	switch (cfg->type) {
-	case PORT_SCI:
-		cfg->regtype = SCIx_SCI_REGTYPE;
-		break;
-	case PORT_IRDA:
-		cfg->regtype = SCIx_IRDA_REGTYPE;
-		break;
-	case PORT_SCIFA:
-		cfg->regtype = SCIx_SCIFA_REGTYPE;
-		break;
-	case PORT_SCIFB:
-		cfg->regtype = SCIx_SCIFB_REGTYPE;
-		break;
-	case PORT_SCIF:
-		/*
-		 * The SH-4 is a bit of a misnomer here, although that's
-		 * where this particular port layout originated. This
-		 * configuration (or some slight variation thereof)
-		 * remains the dominant model for all SCIFs.
-		 */
-		cfg->regtype = SCIx_SH4_SCIF_REGTYPE;
-		break;
-	case PORT_HSCIF:
-		cfg->regtype = SCIx_HSCIF_REGTYPE;
-		break;
-	default:
-		pr_err("Can't probe register map for given port\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
 static void sci_port_enable(struct sci_port *sci_port)
 {
 	unsigned int i;
@@ -2540,9 +2505,50 @@ static int sci_init_clocks(struct sci_port *sci_port, struct device *dev)
 	return 0;
 }
 
+static const struct sci_port_params *
+sci_probe_regmap(const struct plat_sci_port *cfg)
+{
+	unsigned int regtype;
+
+	if (cfg->regtype != SCIx_PROBE_REGTYPE)
+		return &sci_port_params[cfg->regtype];
+
+	switch (cfg->type) {
+	case PORT_SCI:
+		regtype = SCIx_SCI_REGTYPE;
+		break;
+	case PORT_IRDA:
+		regtype = SCIx_IRDA_REGTYPE;
+		break;
+	case PORT_SCIFA:
+		regtype = SCIx_SCIFA_REGTYPE;
+		break;
+	case PORT_SCIFB:
+		regtype = SCIx_SCIFB_REGTYPE;
+		break;
+	case PORT_SCIF:
+		/*
+		 * The SH-4 is a bit of a misnomer here, although that's
+		 * where this particular port layout originated. This
+		 * configuration (or some slight variation thereof)
+		 * remains the dominant model for all SCIFs.
+		 */
+		regtype = SCIx_SH4_SCIF_REGTYPE;
+		break;
+	case PORT_HSCIF:
+		regtype = SCIx_HSCIF_REGTYPE;
+		break;
+	default:
+		pr_err("Can't probe register map for given port\n");
+		return NULL;
+	}
+
+	return &sci_port_params[regtype];
+}
+
 static int sci_init_single(struct platform_device *dev,
 			   struct sci_port *sci_port, unsigned int index,
-			   struct plat_sci_port *p, bool early)
+			   const struct plat_sci_port *p, bool early)
 {
 	struct uart_port *port = &sci_port->port;
 	const struct resource *res;
@@ -2579,13 +2585,9 @@ static int sci_init_single(struct platform_device *dev,
 		sci_port->irqs[3] = sci_port->irqs[0];
 	}
 
-	if (p->regtype = SCIx_PROBE_REGTYPE) {
-		ret = sci_probe_regmap(p);
-		if (unlikely(ret))
-			return ret;
-	}
-
-	sci_port->params = &sci_port_params[p->regtype];
+	sci_port->params = sci_probe_regmap(p);
+	if (unlikely(sci_port->params = NULL))
+		return -EINVAL;
 
 	switch (p->type) {
 	case PORT_SCIFB:
@@ -2805,7 +2807,7 @@ static char early_serial_buf[32];
 
 static int sci_probe_earlyprintk(struct platform_device *pdev)
 {
-	struct plat_sci_port *cfg = dev_get_platdata(&pdev->dev);
+	const struct plat_sci_port *cfg = dev_get_platdata(&pdev->dev);
 
 	if (early_serial_console.data)
 		return -EEXIST;
@@ -3096,10 +3098,9 @@ static int __init early_console_setup(struct earlycon_device *device,
 	device->port.serial_out	= sci_serial_out;
 	device->port.type = type;
 	memcpy(&sci_ports[0].port, &device->port, sizeof(struct uart_port));
+	port_cfg.type = type;
 	sci_ports[0].cfg = &port_cfg;
-	sci_ports[0].cfg->type = type;
-	sci_probe_regmap(sci_ports[0].cfg);
-	sci_ports[0].params = &sci_port_params[sci_ports[0].cfg->regtype];
+	sci_ports[0].params = sci_probe_regmap(&port_cfg);
 	port_cfg.scscr = sci_serial_in(&sci_ports[0].port, SCSCR);
 	sci_serial_out(&sci_ports[0].port, SCSCR,
 		       SCSCR_RE | SCSCR_TE | port_cfg.scscr);
-- 
Regards,

Laurent Pinchart

Re: [PATCH 14/19] serial: sh-sci: Constify platform data

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The driver modifies platform data for internal purpose only. Fix that
> and make the platform data structure const.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 15/19] serial: sh-sci: Extend sci_port_params with more port parameters

[Laurent Pinchart]

The fifo size, overrun register and mask, sampling rate mask and error
mask all depend on the port type only and don't need to be computed at
runtime. Add them to the sci_port_parameters structure.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/tty/serial/sh-sci.c | 181 ++++++++++++++++++++++++--------------------
 drivers/tty/serial/sh-sci.h |   4 +-
 2 files changed, 102 insertions(+), 83 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 285d0c726ca3..010422ae88ff 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -107,6 +107,12 @@ struct plat_sci_reg {
 
 struct sci_port_params {
 	const struct plat_sci_reg regs[SCIx_NR_REGS];
+	unsigned int fifosize;
+	unsigned int overrun_reg;
+	unsigned int overrun_mask;
+	unsigned int sampling_rate_mask;
+	unsigned int error_mask;
+	unsigned int error_clear;
 };
 
 struct sci_port {
@@ -115,10 +121,6 @@ struct sci_port {
 	/* Platform configuration */
 	const struct sci_port_params *params;
 	const struct plat_sci_port *cfg;
-	unsigned int		overrun_reg;
-	unsigned int		overrun_mask;
-	unsigned int		error_mask;
-	unsigned int		error_clear;
 	unsigned int		sampling_rate_mask;
 	resource_size_t		reg_size;
 	struct mctrl_gpios	*gpios;
@@ -179,6 +181,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCxSR]		= { 0x04,  8 },
 			[SCxRDR]	= { 0x05,  8 },
 		},
+		.fifosize = 1,
+		.overrun_reg = SCxSR,
+		.overrun_mask = SCI_ORER,
+		.sampling_rate_mask = SCI_SR(32),
+		.error_mask = SCI_DEFAULT_ERROR_MASK | SCI_ORER,
+		.error_clear = SCI_ERROR_CLEAR & ~SCI_ORER,
 	},
 
 	/*
@@ -196,6 +204,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCFCR]		= { 0x06,  8 },
 			[SCFDR]		= { 0x07, 16 },
 		},
+		.fifosize = 1,
+		.overrun_reg = SCxSR,
+		.overrun_mask = SCI_ORER,
+		.sampling_rate_mask = SCI_SR(32),
+		.error_mask = SCI_DEFAULT_ERROR_MASK | SCI_ORER,
+		.error_clear = SCI_ERROR_CLEAR & ~SCI_ORER,
 	},
 
 	/*
@@ -214,6 +228,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCPCR]		= { 0x30, 16 },
 			[SCPDR]		= { 0x34, 16 },
 		},
+		.fifosize = 64,
+		.overrun_reg = SCxSR,
+		.overrun_mask = SCIFA_ORER,
+		.sampling_rate_mask = SCI_SR_SCIFAB,
+		.error_mask = SCIF_DEFAULT_ERROR_MASK | SCIFA_ORER,
+		.error_clear = SCIF_ERROR_CLEAR & ~SCIFA_ORER,
 	},
 
 	/*
@@ -233,6 +253,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCPCR]		= { 0x30, 16 },
 			[SCPDR]		= { 0x34, 16 },
 		},
+		.fifosize = 256,
+		.overrun_reg = SCxSR,
+		.overrun_mask = SCIFA_ORER,
+		.sampling_rate_mask = SCI_SR_SCIFAB,
+		.error_mask = SCIF_DEFAULT_ERROR_MASK | SCIFA_ORER,
+		.error_clear = SCIF_ERROR_CLEAR & ~SCIFA_ORER,
 	},
 
 	/*
@@ -252,6 +278,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCSPTR]	= { 0x20, 16 },
 			[SCLSR]		= { 0x24, 16 },
 		},
+		.fifosize = 16,
+		.overrun_reg = SCLSR,
+		.overrun_mask = SCLSR_ORER,
+		.sampling_rate_mask = SCI_SR(32),
+		.error_mask = SCIF_DEFAULT_ERROR_MASK,
+		.error_clear = SCIF_ERROR_CLEAR,
 	},
 
 	/*
@@ -268,6 +300,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCFCR]		= { 0x0c,  8 },
 			[SCFDR]		= { 0x0e, 16 },
 		},
+		.fifosize = 16,
+		.overrun_reg = SCLSR,
+		.overrun_mask = SCLSR_ORER,
+		.sampling_rate_mask = SCI_SR(32),
+		.error_mask = SCIF_DEFAULT_ERROR_MASK,
+		.error_clear = SCIF_ERROR_CLEAR,
 	},
 
 	/*
@@ -286,6 +324,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCSPTR]	= { 0x20, 16 },
 			[SCLSR]		= { 0x24, 16 },
 		},
+		.fifosize = 16,
+		.overrun_reg = SCLSR,
+		.overrun_mask = SCLSR_ORER,
+		.sampling_rate_mask = SCI_SR(32),
+		.error_mask = SCIF_DEFAULT_ERROR_MASK,
+		.error_clear = SCIF_ERROR_CLEAR,
 	},
 
 	/*
@@ -307,6 +351,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCDL]		= { 0x30, 16 },
 			[SCCKS]		= { 0x34, 16 },
 		},
+		.fifosize = 16,
+		.overrun_reg = SCLSR,
+		.overrun_mask = SCLSR_ORER,
+		.sampling_rate_mask = SCI_SR(32),
+		.error_mask = SCIF_DEFAULT_ERROR_MASK,
+		.error_clear = SCIF_ERROR_CLEAR,
 	},
 
 	/*
@@ -328,6 +378,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCDL]		= { 0x30, 16 },
 			[SCCKS]		= { 0x34, 16 },
 		},
+		.fifosize = 128,
+		.overrun_reg = SCLSR,
+		.overrun_mask = SCLSR_ORER,
+		.sampling_rate_mask = SCI_SR_RANGE(8, 32),
+		.error_mask = SCIF_DEFAULT_ERROR_MASK,
+		.error_clear = SCIF_ERROR_CLEAR,
 	},
 
 	/*
@@ -346,6 +402,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCFDR]		= { 0x1c, 16 },
 			[SCLSR]		= { 0x24, 16 },
 		},
+		.fifosize = 16,
+		.overrun_reg = SCLSR,
+		.overrun_mask = SCLSR_ORER,
+		.sampling_rate_mask = SCI_SR(32),
+		.error_mask = SCIF_DEFAULT_ERROR_MASK,
+		.error_clear = SCIF_ERROR_CLEAR,
 	},
 
 	/*
@@ -367,6 +429,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCSPTR]	= { 0x24, 16 },
 			[SCLSR]		= { 0x28, 16 },
 		},
+		.fifosize = 16,
+		.overrun_reg = SCLSR,
+		.overrun_mask = SCLSR_ORER,
+		.sampling_rate_mask = SCI_SR(32),
+		.error_mask = SCIF_DEFAULT_ERROR_MASK,
+		.error_clear = SCIF_ERROR_CLEAR,
 	},
 
 	/*
@@ -384,6 +452,12 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 			[SCFCR]		= { 0x18, 16 },
 			[SCFDR]		= { 0x1c, 16 },
 		},
+		.fifosize = 16,
+		.overrun_reg = SCxSR,
+		.overrun_mask = SCIFA_ORER,
+		.sampling_rate_mask = SCI_SR(16),
+		.error_mask = SCIF_DEFAULT_ERROR_MASK | SCIFA_ORER,
+		.error_clear = SCIF_ERROR_CLEAR & ~SCIFA_ORER,
 	},
 };
 
@@ -546,7 +620,7 @@ static void sci_clear_SCxSR(struct uart_port *port, unsigned int mask)
 	if (port->type = PORT_SCI) {
 		/* Just store the mask */
 		serial_port_out(port, SCxSR, mask);
-	} else if (to_sci_port(port)->overrun_mask = SCIFA_ORER) {
+	} else if (to_sci_port(port)->params->overrun_mask = SCIFA_ORER) {
 		/* SCIFA/SCIFB and SCIF on SH7705/SH7720/SH7721 */
 		/* Only clear the status bits we want to clear */
 		serial_port_out(port, SCxSR,
@@ -641,11 +715,13 @@ static void sci_init_pins(struct uart_port *port, unsigned int cflag)
 
 static int sci_txfill(struct uart_port *port)
 {
+	struct sci_port *s = to_sci_port(port);
+	unsigned int fifo_mask = (s->params->fifosize << 1) - 1;
 	const struct plat_sci_reg *reg;
 
 	reg = sci_getreg(port, SCTFDR);
 	if (reg->size)
-		return serial_port_in(port, SCTFDR) & ((port->fifosize << 1) - 1);
+		return serial_port_in(port, SCTFDR) & fifo_mask;
 
 	reg = sci_getreg(port, SCFDR);
 	if (reg->size)
@@ -661,15 +737,17 @@ static int sci_txroom(struct uart_port *port)
 
 static int sci_rxfill(struct uart_port *port)
 {
+	struct sci_port *s = to_sci_port(port);
+	unsigned int fifo_mask = (s->params->fifosize << 1) - 1;
 	const struct plat_sci_reg *reg;
 
 	reg = sci_getreg(port, SCRFDR);
 	if (reg->size)
-		return serial_port_in(port, SCRFDR) & ((port->fifosize << 1) - 1);
+		return serial_port_in(port, SCRFDR) & fifo_mask;
 
 	reg = sci_getreg(port, SCFDR);
 	if (reg->size)
-		return serial_port_in(port, SCFDR) & ((port->fifosize << 1) - 1);
+		return serial_port_in(port, SCFDR) & fifo_mask;
 
 	return (serial_port_in(port, SCxSR) & SCxSR_RDxF(port)) != 0;
 }
@@ -880,7 +958,7 @@ static int sci_handle_errors(struct uart_port *port)
 	struct sci_port *s = to_sci_port(port);
 
 	/* Handle overruns */
-	if (status & s->overrun_mask) {
+	if (status & s->params->overrun_mask) {
 		port->icount.overrun++;
 
 		/* overrun error */
@@ -946,14 +1024,14 @@ static int sci_handle_fifo_overrun(struct uart_port *port)
 	int copied = 0;
 	u16 status;
 
-	reg = sci_getreg(port, s->overrun_reg);
+	reg = sci_getreg(port, s->params->overrun_reg);
 	if (!reg->size)
 		return 0;
 
-	status = serial_port_in(port, s->overrun_reg);
-	if (status & s->overrun_mask) {
-		status &= ~s->overrun_mask;
-		serial_port_out(port, s->overrun_reg, status);
+	status = serial_port_in(port, s->params->overrun_reg);
+	if (status & s->params->overrun_mask) {
+		status &= ~s->params->overrun_mask;
+		serial_port_out(port, s->params->overrun_reg, status);
 
 		port->icount.overrun++;
 
@@ -1542,12 +1620,10 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
 
 	ssr_status = serial_port_in(port, SCxSR);
 	scr_status = serial_port_in(port, SCSCR);
-	if (s->overrun_reg = SCxSR)
+	if (s->params->overrun_reg = SCxSR)
 		orer_status = ssr_status;
-	else {
-		if (sci_getreg(port, s->overrun_reg)->size)
-			orer_status = serial_port_in(port, s->overrun_reg);
-	}
+	else if (sci_getreg(port, s->params->overrun_reg)->size)
+		orer_status = serial_port_in(port, s->params->overrun_reg);
 
 	err_enabled = scr_status & port_rx_irq_mask(port);
 
@@ -1573,7 +1649,7 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
 		ret = sci_br_interrupt(irq, ptr);
 
 	/* Overrun Interrupt */
-	if (orer_status & s->overrun_mask) {
+	if (orer_status & s->params->overrun_mask) {
 		sci_handle_fifo_overrun(port);
 		ret = IRQ_HANDLED;
 	}
@@ -2589,51 +2665,13 @@ static int sci_init_single(struct platform_device *dev,
 	if (unlikely(sci_port->params = NULL))
 		return -EINVAL;
 
-	switch (p->type) {
-	case PORT_SCIFB:
-		port->fifosize = 256;
-		sci_port->overrun_reg = SCxSR;
-		sci_port->overrun_mask = SCIFA_ORER;
-		sci_port->sampling_rate_mask = SCI_SR_SCIFAB;
-		break;
-	case PORT_HSCIF:
-		port->fifosize = 128;
-		sci_port->overrun_reg = SCLSR;
-		sci_port->overrun_mask = SCLSR_ORER;
-		sci_port->sampling_rate_mask = SCI_SR_RANGE(8, 32);
-		break;
-	case PORT_SCIFA:
-		port->fifosize = 64;
-		sci_port->overrun_reg = SCxSR;
-		sci_port->overrun_mask = SCIFA_ORER;
-		sci_port->sampling_rate_mask = SCI_SR_SCIFAB;
-		break;
-	case PORT_SCIF:
-		port->fifosize = 16;
-		if (p->regtype = SCIx_SH7705_SCIF_REGTYPE) {
-			sci_port->overrun_reg = SCxSR;
-			sci_port->overrun_mask = SCIFA_ORER;
-			sci_port->sampling_rate_mask = SCI_SR(16);
-		} else {
-			sci_port->overrun_reg = SCLSR;
-			sci_port->overrun_mask = SCLSR_ORER;
-			sci_port->sampling_rate_mask = SCI_SR(32);
-		}
-		break;
-	default:
-		port->fifosize = 1;
-		sci_port->overrun_reg = SCxSR;
-		sci_port->overrun_mask = SCI_ORER;
-		sci_port->sampling_rate_mask = SCI_SR(32);
-		break;
-	}
-
 	/* SCIFA on sh7723 and sh7724 need a custom sampling rate that doesn't
 	 * match the SoC datasheet, this should be investigated. Let platform
 	 * data override the sampling rate for now.
 	 */
-	if (p->sampling_rate)
-		sci_port->sampling_rate_mask = SCI_SR(p->sampling_rate);
+	sci_port->sampling_rate_mask = p->sampling_rate
+				     ? SCI_SR(p->sampling_rate)
+				     : sci_port->params->sampling_rate_mask;
 
 	if (!early) {
 		ret = sci_init_clocks(sci_port, &dev->dev);
@@ -2649,29 +2687,10 @@ static int sci_init_single(struct platform_device *dev,
 	sci_port->break_timer.function = sci_break_timer;
 	init_timer(&sci_port->break_timer);
 
-	/*
-	 * Establish some sensible defaults for the error detection.
-	 */
-	if (p->type = PORT_SCI) {
-		sci_port->error_mask = SCI_DEFAULT_ERROR_MASK;
-		sci_port->error_clear = SCI_ERROR_CLEAR;
-	} else {
-		sci_port->error_mask = SCIF_DEFAULT_ERROR_MASK;
-		sci_port->error_clear = SCIF_ERROR_CLEAR;
-	}
-
-	/*
-	 * Make the error mask inclusive of overrun detection, if
-	 * supported.
-	 */
-	if (sci_port->overrun_reg = SCxSR) {
-		sci_port->error_mask |= sci_port->overrun_mask;
-		sci_port->error_clear &= ~sci_port->overrun_mask;
-	}
-
 	port->type		= p->type;
 	port->flags		= UPF_FIXED_PORT | UPF_BOOT_AUTOCONF | p->flags;
 	port->regshift		= p->regshift;
+	port->fifosize		= sci_port->params->fifosize;
 
 	/*
 	 * The UART port needs an IRQ value, so we peg this to the RX IRQ
diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h
index ffa6d688c335..08073f0db732 100644
--- a/drivers/tty/serial/sh-sci.h
+++ b/drivers/tty/serial/sh-sci.h
@@ -151,12 +151,12 @@ enum {
 #define SCxSR_PER(port)		(((port)->type = PORT_SCI) ? SCI_PER    : SCIF_PER)
 #define SCxSR_BRK(port)		(((port)->type = PORT_SCI) ? 0x00       : SCIF_BRK)
 
-#define SCxSR_ERRORS(port)	(to_sci_port(port)->error_mask)
+#define SCxSR_ERRORS(port)	(to_sci_port(port)->params->error_mask)
 
 #define SCxSR_RDxF_CLEAR(port) \
 	(((port)->type = PORT_SCI) ? SCI_RDxF_CLEAR : SCIF_RDxF_CLEAR)
 #define SCxSR_ERROR_CLEAR(port) \
-	(to_sci_port(port)->error_clear)
+	(to_sci_port(port)->params->error_clear)
 #define SCxSR_TDxE_CLEAR(port) \
 	(((port)->type = PORT_SCI) ? SCI_TDxE_CLEAR : SCIF_TDxE_CLEAR)
 #define SCxSR_BREAK_CLEAR(port) \
-- 
Regards,

Laurent Pinchart

Re: [PATCH 15/19] serial: sh-sci: Extend sci_port_params with more port parameters

[Geert Uytterhoeven]

Hi Laurent,

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The fifo size, overrun register and mask, sampling rate mask and error
> mask all depend on the port type only and don't need to be computed at
> runtime. Add them to the sci_port_parameters structure.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

> --- a/drivers/tty/serial/sh-sci.c
> +++ b/drivers/tty/serial/sh-sci.c
> @@ -107,6 +107,12 @@ struct plat_sci_reg {
>
>  struct sci_port_params {
>         const struct plat_sci_reg regs[SCIx_NR_REGS];
> +       unsigned int fifosize;
> +       unsigned int overrun_reg;
> +       unsigned int overrun_mask;
> +       unsigned int sampling_rate_mask;
> +       unsigned int error_mask;
> +       unsigned int error_clear;
>  };
>
>  struct sci_port {


> @@ -2649,29 +2687,10 @@ static int sci_init_single(struct platform_device *dev,
>         sci_port->break_timer.function = sci_break_timer;
>         init_timer(&sci_port->break_timer);
>
> -       /*
> -        * Establish some sensible defaults for the error detection.
> -        */
> -       if (p->type = PORT_SCI) {
> -               sci_port->error_mask = SCI_DEFAULT_ERROR_MASK;
> -               sci_port->error_clear = SCI_ERROR_CLEAR;
> -       } else {
> -               sci_port->error_mask = SCIF_DEFAULT_ERROR_MASK;
> -               sci_port->error_clear = SCIF_ERROR_CLEAR;
> -       }
> -
> -       /*
> -        * Make the error mask inclusive of overrun detection, if
> -        * supported.
> -        */
> -       if (sci_port->overrun_reg = SCxSR) {
> -               sci_port->error_mask |= sci_port->overrun_mask;
> -               sci_port->error_clear &= ~sci_port->overrun_mask;
> -       }
> -
>         port->type              = p->type;
>         port->flags             = UPF_FIXED_PORT | UPF_BOOT_AUTOCONF | p->flags;
>         port->regshift          = p->regshift;
> +       port->fifosize          = sci_port->params->fifosize;

You still need this assignment because you didn't convert a handfull
remaining users of port->fifosize to params->fifosize?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 16/19] serial: sh-sci: Remove the platform data dma slave rx/tx channel IDs

[Laurent Pinchart]

Only SH platforms still use platform data for the sh-sci, and none of
them declare DMA channels connected to the SCI. Remove the corresponding
platform data fields and simplify the driver accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/tty/serial/sh-sci.c | 23 ++++++-----------------
 include/linux/serial_sci.h  |  3 ---
 2 files changed, 6 insertions(+), 20 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 010422ae88ff..671b6068c58b 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1388,20 +1388,14 @@ static void rx_timer_fn(unsigned long arg)
 }
 
 static struct dma_chan *sci_request_dma_chan(struct uart_port *port,
-					     enum dma_transfer_direction dir,
-					     unsigned int id)
+					     enum dma_transfer_direction dir)
 {
-	dma_cap_mask_t mask;
 	struct dma_chan *chan;
 	struct dma_slave_config cfg;
 	int ret;
 
-	dma_cap_zero(mask);
-	dma_cap_set(DMA_SLAVE, mask);
-
-	chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
-					(void *)(unsigned long)id, port->dev,
-					dir = DMA_MEM_TO_DEV ? "tx" : "rx");
+	chan = dma_request_slave_channel(port->dev,
+					 dir = DMA_MEM_TO_DEV ? "tx" : "rx");
 	if (!chan) {
 		dev_warn(port->dev,
 			 "dma_request_slave_channel_compat failed\n");
@@ -1437,12 +1431,11 @@ static void sci_request_dma(struct uart_port *port)
 
 	dev_dbg(port->dev, "%s: port %d\n", __func__, port->line);
 
-	if (!port->dev->of_node &&
-	    (s->cfg->dma_slave_tx <= 0 || s->cfg->dma_slave_rx <= 0))
+	if (!port->dev->of_node)
 		return;
 
 	s->cookie_tx = -EINVAL;
-	chan = sci_request_dma_chan(port, DMA_MEM_TO_DEV, s->cfg->dma_slave_tx);
+	chan = sci_request_dma_chan(port, DMA_MEM_TO_DEV);
 	dev_dbg(port->dev, "%s: TX: got channel %p\n", __func__, chan);
 	if (chan) {
 		s->chan_tx = chan;
@@ -1464,7 +1457,7 @@ static void sci_request_dma(struct uart_port *port)
 		INIT_WORK(&s->work_tx, work_fn_tx);
 	}
 
-	chan = sci_request_dma_chan(port, DMA_DEV_TO_MEM, s->cfg->dma_slave_rx);
+	chan = sci_request_dma_chan(port, DMA_DEV_TO_MEM);
 	dev_dbg(port->dev, "%s: RX: got channel %p\n", __func__, chan);
 	if (chan) {
 		unsigned int i;
@@ -2705,10 +2698,6 @@ static int sci_init_single(struct platform_device *dev,
 	port->serial_in		= sci_serial_in;
 	port->serial_out	= sci_serial_out;
 
-	if (p->dma_slave_tx > 0 && p->dma_slave_rx > 0)
-		dev_dbg(port->dev, "DMA tx %d, rx %d\n",
-			p->dma_slave_tx, p->dma_slave_rx);
-
 	return 0;
 }
 
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index 9f2bfd055742..1a894c47bfc0 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -71,9 +71,6 @@ struct plat_sci_port {
 	unsigned char	regtype;
 
 	struct plat_sci_port_ops	*ops;
-
-	unsigned int	dma_slave_tx;
-	unsigned int	dma_slave_rx;
 };
 
 #endif /* __LINUX_SERIAL_SCI_H */
-- 
Regards,

Laurent Pinchart

Re: [PATCH 16/19] serial: sh-sci: Remove the platform data dma slave rx/tx channel IDs

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> Only SH platforms still use platform data for the sh-sci, and none of
> them declare DMA channels connected to the SCI. Remove the corresponding
> platform data fields and simplify the driver accordingly.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 17/19] serial: sh-sci: Remove manual break debouncing

[Laurent Pinchart]

The sh-sci driver implements manual break debouncing for a few SH
platforms by reading the value of the RX pin port register. This feature
is optional and the driver considers all negative or zero values of the
platform data port_reg field as invalid. As the four platforms that set
the field to a register address all use an address higher than
0x7fffffff, the driver will always consider the value as invalid and
never perform debouncing. The feature is unused, remove it.

Debouncing could be implemented properly in the future using the pinctrl
and GPIO APIs if desired.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/tty/serial/sh-sci.c | 124 +++-----------------------------------------
 include/linux/serial_sci.h  |   5 --
 2 files changed, 7 insertions(+), 122 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 671b6068c58b..1f3025f2d21d 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -125,10 +125,6 @@ struct sci_port {
 	resource_size_t		reg_size;
 	struct mctrl_gpios	*gpios;
 
-	/* Break timer */
-	struct timer_list	break_timer;
-	int			break_flag;
-
 	/* Clocks */
 	struct clk		*clks[SCI_NUM_CLKS];
 	unsigned long		clk_rates[SCI_NUM_CLKS];
@@ -518,14 +514,6 @@ static void sci_port_disable(struct sci_port *sci_port)
 	if (!sci_port->port.dev)
 		return;
 
-	/* Cancel the break timer to ensure that the timer handler will not try
-	 * to access the hardware with clocks and power disabled. Reset the
-	 * break flag to make the break debouncing state machine ready for the
-	 * next break.
-	 */
-	del_timer_sync(&sci_port->break_timer);
-	sci_port->break_flag = 0;
-
 	for (i = SCI_NUM_CLKS; i-- > 0; )
 		clk_disable_unprepare(sci_port->clks[i]);
 
@@ -752,20 +740,6 @@ static int sci_rxfill(struct uart_port *port)
 	return (serial_port_in(port, SCxSR) & SCxSR_RDxF(port)) != 0;
 }
 
-/*
- * SCI helper for checking the state of the muxed port/RXD pins.
- */
-static inline int sci_rxd_in(struct uart_port *port)
-{
-	struct sci_port *s = to_sci_port(port);
-
-	if (s->cfg->port_reg <= 0)
-		return 1;
-
-	/* Cast for ARM damage */
-	return !!__raw_readb((void __iomem *)(uintptr_t)s->cfg->port_reg);
-}
-
 /* ********************************************************************** *
  *                   the interrupt related routines                       *
  * ********************************************************************** */
@@ -833,7 +807,6 @@ static void sci_transmit_chars(struct uart_port *port)
 
 static void sci_receive_chars(struct uart_port *port)
 {
-	struct sci_port *sci_port = to_sci_port(port);
 	struct tty_port *tport = &port->state->port;
 	int i, count, copied = 0;
 	unsigned short status;
@@ -853,8 +826,7 @@ static void sci_receive_chars(struct uart_port *port)
 
 		if (port->type = PORT_SCI) {
 			char c = serial_port_in(port, SCxRDR);
-			if (uart_handle_sysrq_char(port, c) ||
-			    sci_port->break_flag)
+			if (uart_handle_sysrq_char(port, c))
 				count = 0;
 			else
 				tty_insert_flip_char(tport, c, TTY_NORMAL);
@@ -863,25 +835,6 @@ static void sci_receive_chars(struct uart_port *port)
 				char c = serial_port_in(port, SCxRDR);
 
 				status = serial_port_in(port, SCxSR);
-#if defined(CONFIG_CPU_SH3)
-				/* Skip "chars" during break */
-				if (sci_port->break_flag) {
-					if ((c = 0) &&
-					    (status & SCxSR_FER(port))) {
-						count--; i--;
-						continue;
-					}
-
-					/* Nonzero => end-of-break */
-					dev_dbg(port->dev, "debounce<%02x>\n", c);
-					sci_port->break_flag = 0;
-
-					if (STEPFN(c)) {
-						count--; i--;
-						continue;
-					}
-				}
-#endif /* CONFIG_CPU_SH3 */
 				if (uart_handle_sysrq_char(port, c)) {
 					count--; i--;
 					continue;
@@ -919,37 +872,6 @@ static void sci_receive_chars(struct uart_port *port)
 	}
 }
 
-#define SCI_BREAK_JIFFIES (HZ/20)
-
-/*
- * The sci generates interrupts during the break,
- * 1 per millisecond or so during the break period, for 9600 baud.
- * So dont bother disabling interrupts.
- * But dont want more than 1 break event.
- * Use a kernel timer to periodically poll the rx line until
- * the break is finished.
- */
-static inline void sci_schedule_break_timer(struct sci_port *port)
-{
-	mod_timer(&port->break_timer, jiffies + SCI_BREAK_JIFFIES);
-}
-
-/* Ensure that two consecutive samples find the break over. */
-static void sci_break_timer(unsigned long data)
-{
-	struct sci_port *port = (struct sci_port *)data;
-
-	if (sci_rxd_in(&port->port) = 0) {
-		port->break_flag = 1;
-		sci_schedule_break_timer(port);
-	} else if (port->break_flag = 1) {
-		/* break is over. */
-		port->break_flag = 2;
-		sci_schedule_break_timer(port);
-	} else
-		port->break_flag = 0;
-}
-
 static int sci_handle_errors(struct uart_port *port)
 {
 	int copied = 0;
@@ -969,35 +891,13 @@ static int sci_handle_errors(struct uart_port *port)
 	}
 
 	if (status & SCxSR_FER(port)) {
-		if (sci_rxd_in(port) = 0) {
-			/* Notify of BREAK */
-			struct sci_port *sci_port = to_sci_port(port);
-
-			if (!sci_port->break_flag) {
-				port->icount.brk++;
-
-				sci_port->break_flag = 1;
-				sci_schedule_break_timer(sci_port);
-
-				/* Do sysrq handling. */
-				if (uart_handle_break(port))
-					return 0;
-
-				dev_dbg(port->dev, "BREAK detected\n");
-
-				if (tty_insert_flip_char(tport, 0, TTY_BREAK))
-					copied++;
-			}
-
-		} else {
-			/* frame error */
-			port->icount.frame++;
+		/* frame error */
+		port->icount.frame++;
 
-			if (tty_insert_flip_char(tport, 0, TTY_FRAME))
-				copied++;
+		if (tty_insert_flip_char(tport, 0, TTY_FRAME))
+			copied++;
 
-			dev_notice(port->dev, "frame error\n");
-		}
+		dev_notice(port->dev, "frame error\n");
 	}
 
 	if (status & SCxSR_PER(port)) {
@@ -1050,17 +950,11 @@ static int sci_handle_breaks(struct uart_port *port)
 	int copied = 0;
 	unsigned short status = serial_port_in(port, SCxSR);
 	struct tty_port *tport = &port->state->port;
-	struct sci_port *s = to_sci_port(port);
 
 	if (uart_handle_break(port))
 		return 0;
 
-	if (!s->break_flag && status & SCxSR_BRK(port)) {
-#if defined(CONFIG_CPU_SH3)
-		/* Debounce break */
-		s->break_flag = 1;
-#endif
-
+	if (status & SCxSR_BRK(port)) {
 		port->icount.brk++;
 
 		/* Notify of BREAK */
@@ -2676,10 +2570,6 @@ static int sci_init_single(struct platform_device *dev,
 		pm_runtime_enable(&dev->dev);
 	}
 
-	sci_port->break_timer.data = (unsigned long)sci_port;
-	sci_port->break_timer.function = sci_break_timer;
-	init_timer(&sci_port->break_timer);
-
 	port->type		= p->type;
 	port->flags		= UPF_FIXED_PORT | UPF_BOOT_AUTOCONF | p->flags;
 	port->regshift		= p->regshift;
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index 1a894c47bfc0..b4419931bf4c 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -9,8 +9,6 @@
  * Generic header for SuperH (H)SCI(F) (used by sh/sh64 and related parts)
  */
 
-#define SCIx_NOT_SUPPORTED	(-1)
-
 /* Serial Control Register (@ = not supported by all parts) */
 #define SCSCR_TIE	BIT(7)	/* Transmit Interrupt Enable */
 #define SCSCR_RIE	BIT(6)	/* Receive Interrupt Enable */
@@ -41,8 +39,6 @@ enum {
 	SCIx_NR_REGTYPES,
 };
 
-struct device;
-
 struct plat_sci_port_ops {
 	void (*init_pins)(struct uart_port *, unsigned int cflag);
 };
@@ -66,7 +62,6 @@ struct plat_sci_port {
 	/*
 	 * Platform overrides if necessary, defaults otherwise.
 	 */
-	int		port_reg;
 	unsigned char	regshift;
 	unsigned char	regtype;
 
-- 
Regards,

Laurent Pinchart

Re: [PATCH 17/19] serial: sh-sci: Remove manual break debouncing

[Geert Uytterhoeven]

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The sh-sci driver implements manual break debouncing for a few SH
> platforms by reading the value of the RX pin port register. This feature
> is optional and the driver considers all negative or zero values of the
> platform data port_reg field as invalid. As the four platforms that set
> the field to a register address all use an address higher than
> 0x7fffffff, the driver will always consider the value as invalid and
> never perform debouncing. The feature is unused, remove it.
>
> Debouncing could be implemented properly in the future using the pinctrl
> and GPIO APIs if desired.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

> --- a/include/linux/serial_sci.h
> +++ b/include/linux/serial_sci.h

> @@ -41,8 +39,6 @@ enum {
>         SCIx_NR_REGTYPES,
>  };
>
> -struct device;
> -

<ignore_me>
Unrelated change (missed in commit 937bb6e4c676 ("serial: sh-sci: don't
filter on DMA device, use only channel ID")
</ignore_me>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH 18/19] serial: sh-sci: Remove unused platform data capabilities field

[Laurent Pinchart]

The field isn't set by any platform but is only used internally in the
driver to hold data parsed from DT. Move it to the sci_port structure.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/tty/serial/sh-sci.c | 11 +++++++----
 include/linux/serial_sci.h  |  6 ------
 2 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 1f3025f2d21d..5fc2606fc525 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -149,6 +149,7 @@ struct sci_port {
 	unsigned int			rx_timeout;
 #endif
 
+	bool has_rtscts;
 	bool autorts;
 };
 
@@ -681,7 +682,7 @@ static void sci_init_pins(struct uart_port *port, unsigned int cflag)
 
 		/* Enable RXD and TXD pin functions */
 		ctrl &= ~(SCPCR_RXDC | SCPCR_TXDC);
-		if (to_sci_port(port)->cfg->capabilities & SCIx_HAVE_RTSCTS) {
+		if (to_sci_port(port)->has_rtscts) {
 			/* RTS# is output, driven 1 */
 			ctrl |= SCPCR_RTSC;
 			serial_port_out(port, SCPDR,
@@ -1737,7 +1738,7 @@ static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl)
 
 	mctrl_gpio_set(s->gpios, mctrl);
 
-	if (!(s->cfg->capabilities & SCIx_HAVE_RTSCTS))
+	if (!s->has_rtscts)
 		return;
 
 	if (!(mctrl & TIOCM_RTS)) {
@@ -2808,6 +2809,7 @@ sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id)
 	struct device_node *np = pdev->dev.of_node;
 	const struct of_device_id *match;
 	struct plat_sci_port *p;
+	struct sci_port *sp;
 	int id;
 
 	if (!IS_ENABLED(CONFIG_OF) || !np)
@@ -2828,13 +2830,14 @@ sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id)
 		return NULL;
 	}
 
+	sp = &sci_ports[id];
 	*dev_id = id;
 
 	p->type = SCI_OF_TYPE(match->data);
 	p->regtype = SCI_OF_REGTYPE(match->data);
 
 	if (of_find_property(np, "uart-has-rtscts", NULL))
-		p->capabilities |= SCIx_HAVE_RTSCTS;
+		sp->has_rtscts = true;
 
 	return p;
 }
@@ -2862,7 +2865,7 @@ static int sci_probe_single(struct platform_device *dev,
 	if (IS_ERR(sciport->gpios) && PTR_ERR(sciport->gpios) != -ENOSYS)
 		return PTR_ERR(sciport->gpios);
 
-	if (p->capabilities & SCIx_HAVE_RTSCTS) {
+	if (sciport->has_rtscts) {
 		if (!IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(sciport->gpios,
 							UART_GPIO_CTS)) ||
 		    !IS_ERR_OR_NULL(mctrl_gpio_to_gpiod(sciport->gpios,
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index b4419931bf4c..f9a4526f4ec5 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -44,17 +44,11 @@ struct plat_sci_port_ops {
 };
 
 /*
- * Port-specific capabilities
- */
-#define SCIx_HAVE_RTSCTS	BIT(0)
-
-/*
  * Platform device specific platform_data struct
  */
 struct plat_sci_port {
 	unsigned int	type;			/* SCI / SCIF / IRDA / HSCIF */
 	upf_t		flags;			/* UPF_* flags */
-	unsigned long	capabilities;		/* Port features/capabilities */
 
 	unsigned int	sampling_rate;
 	unsigned int	scscr;			/* SCSCR initialization */
-- 
Regards,

Laurent Pinchart

Re: [PATCH 18/19] serial: sh-sci: Remove unused platform data capabilities field

[Geert Uytterhoeven]

Hi Laurent,

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> The field isn't set by any platform but is only used internally in the
> driver to hold data parsed from DT. Move it to the sci_port structure.

This does mean legacy platform data can no longer set it
(no platform data did).

> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 18/19] serial: sh-sci: Remove unused platform data capabilities field

[Laurent Pinchart]

Hi Geert,

On Friday 06 Jan 2017 11:59:58 Geert Uytterhoeven wrote:
> On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart wrote:
> > The field isn't set by any platform but is only used internally in the
> > driver to hold data parsed from DT. Move it to the sci_port structure.
> 
> This does mean legacy platform data can no longer set it
> (no platform data did).

Correct. Platforms that want to set it should migrate to DT :-)

> > Signed-off-by: Laurent Pinchart
> > <laurent.pinchart+renesas@ideasonboard.com>
> 
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

-- 
Regards,

Laurent Pinchart

[PATCH 19/19] serial: sh-sci: Compute the regshift value for SCI ports

[Laurent Pinchart]

SCI instances found in SH SoCs have different spacing between registers
depending on the SoC. The platform data contains a regshift field that
tells the driver by how many bits to shift the register offset to
compute its address. We can compute the regshift value automatically
based on the memory resource size, there's no need to pass the value
through platform data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/tty/serial/sh-sci.c | 25 +++++++++++++++----------
 include/linux/serial_sci.h  |  1 -
 2 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 5fc2606fc525..fbffe89b493f 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -187,19 +187,18 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
 	},
 
 	/*
-	 * Common definitions for legacy IrDA ports, dependent on
-	 * regshift value.
+	 * Common definitions for legacy IrDA ports.
 	 */
 	[SCIx_IRDA_REGTYPE] = {
 		.regs = {
 			[SCSMR]		= { 0x00,  8 },
-			[SCBRR]		= { 0x01,  8 },
-			[SCSCR]		= { 0x02,  8 },
-			[SCxTDR]	= { 0x03,  8 },
-			[SCxSR]		= { 0x04,  8 },
-			[SCxRDR]	= { 0x05,  8 },
-			[SCFCR]		= { 0x06,  8 },
-			[SCFDR]		= { 0x07, 16 },
+			[SCBRR]		= { 0x02,  8 },
+			[SCSCR]		= { 0x04,  8 },
+			[SCxTDR]	= { 0x06,  8 },
+			[SCxSR]		= { 0x08, 16 },
+			[SCxRDR]	= { 0x0a,  8 },
+			[SCFCR]		= { 0x0c,  8 },
+			[SCFDR]		= { 0x0e, 16 },
 		},
 		.fifosize = 1,
 		.overrun_reg = SCxSR,
@@ -2573,9 +2572,15 @@ static int sci_init_single(struct platform_device *dev,
 
 	port->type		= p->type;
 	port->flags		= UPF_FIXED_PORT | UPF_BOOT_AUTOCONF | p->flags;
-	port->regshift		= p->regshift;
 	port->fifosize		= sci_port->params->fifosize;
 
+	if (port->type = PORT_SCI) {
+		if (sci_port->reg_size >= 0x20)
+			port->regshift = 2;
+		else
+			port->regshift = 1;
+	}
+
 	/*
 	 * The UART port needs an IRQ value, so we peg this to the RX IRQ
 	 * for the multi-IRQ ports, which is where we are primarily
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index f9a4526f4ec5..e598eaef3962 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -56,7 +56,6 @@ struct plat_sci_port {
 	/*
 	 * Platform overrides if necessary, defaults otherwise.
 	 */
-	unsigned char	regshift;
 	unsigned char	regtype;
 
 	struct plat_sci_port_ops	*ops;
-- 
Regards,

Laurent Pinchart

Re: [PATCH 19/19] serial: sh-sci: Compute the regshift value for SCI ports

[Geert Uytterhoeven]

Hi Laurent,

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> SCI instances found in SH SoCs have different spacing between registers
> depending on the SoC. The platform data contains a regshift field that
> tells the driver by how many bits to shift the register offset to
> compute its address. We can compute the regshift value automatically
> based on the memory resource size, there's no need to pass the value
> through platform data.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> ---
>  drivers/tty/serial/sh-sci.c | 25 +++++++++++++++----------
>  include/linux/serial_sci.h  |  1 -
>  2 files changed, 15 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
> index 5fc2606fc525..fbffe89b493f 100644
> --- a/drivers/tty/serial/sh-sci.c
> +++ b/drivers/tty/serial/sh-sci.c
> @@ -187,19 +187,18 @@ static const struct sci_port_params sci_port_params[SCIx_NR_REGTYPES] = {
>         },
>
>         /*
> -        * Common definitions for legacy IrDA ports, dependent on
> -        * regshift value.
> +        * Common definitions for legacy IrDA ports.
>          */
>         [SCIx_IRDA_REGTYPE] = {
>                 .regs = {
>                         [SCSMR]         = { 0x00,  8 },
> -                       [SCBRR]         = { 0x01,  8 },
> -                       [SCSCR]         = { 0x02,  8 },
> -                       [SCxTDR]        = { 0x03,  8 },
> -                       [SCxSR]         = { 0x04,  8 },
> -                       [SCxRDR]        = { 0x05,  8 },
> -                       [SCFCR]         = { 0x06,  8 },
> -                       [SCFDR]         = { 0x07, 16 },
> +                       [SCBRR]         = { 0x02,  8 },
> +                       [SCSCR]         = { 0x04,  8 },
> +                       [SCxTDR]        = { 0x06,  8 },
> +                       [SCxSR]         = { 0x08, 16 },
> +                       [SCxRDR]        = { 0x0a,  8 },
> +                       [SCFCR]         = { 0x0c,  8 },
> +                       [SCFDR]         = { 0x0e, 16 },

This hunk is not documented, and belongs in "[PATCH 08/19] sh: sh3: sh770x:
Fix platform data for the IRDA serial port" to avoid breaking bisection.

The rest looks OK.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH v1.1 19/19] serial: sh-sci: Compute the regshift value for SCI ports

[Laurent Pinchart]

SCI instances found in SH SoCs have different spacing between registers
depending on the SoC. The platform data contains a regshift field that
tells the driver by how many bits to shift the register offset to
compute its address. We can compute the regshift value automatically
based on the memory resource size, there's no need to pass the value
through platform data.

Fix the sh7750 SCI and sh7760 SIM port memory resources length to ensure
proper computation of the regshift value.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 arch/sh/kernel/cpu/sh3/setup-sh770x.c |  1 -
 arch/sh/kernel/cpu/sh4/setup-sh7750.c |  3 +--
 arch/sh/kernel/cpu/sh4/setup-sh7760.c | 10 ++++++++--
 drivers/tty/serial/sh-sci.c           |  8 +++++++-
 include/linux/serial_sci.h            |  1 -
 5 files changed, 16 insertions(+), 7 deletions(-)

This combines the previous 09/19 and 19/19 patches, with the IRDA hunk split
off.

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index 592cd9ab30c4..59a88611df55 100644
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -111,7 +111,6 @@ static struct platform_device rtc_device = {
 static struct plat_sci_port scif0_platform_data = {
 	.type		= PORT_SCI,
 	.ops		= &sh770x_sci_port_ops,
-	.regshift	= 1,
 };
 
 static struct resource scif0_resources[] = {
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index d98a55416306..57d30689204d 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -39,11 +39,10 @@ static struct platform_device rtc_device = {
 
 static struct plat_sci_port sci_platform_data = {
 	.type		= PORT_SCI,
-	.regshift	= 2,
 };
 
 static struct resource sci_resources[] = {
-	DEFINE_RES_MEM(0xffe00000, 0x100),
+	DEFINE_RES_MEM(0xffe00000, 0x20),
 	DEFINE_RES_IRQ(evt2irq(0x4e0)),
 };
 
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
index 0c0cdfc69dcc..e51fe1734e13 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -200,12 +200,18 @@ static struct platform_device scif2_device = {
 };
 
 static struct plat_sci_port scif3_platform_data = {
+	/*
+	 * This is actually a SIM card module serial port, based on an SCI with
+	 * additional registers. The sh-sci driver doesn't support the SIM port
+	 * type, declare it as a SCI. Don't declare the additional registers in
+	 * the memory resource or the driver will compute an incorrect regshift
+	 * value.
+	 */
 	.type		= PORT_SCI,
-	.regshift	= 2,
 };
 
 static struct resource scif3_resources[] = {
-	DEFINE_RES_MEM(0xfe480000, 0x100),
+	DEFINE_RES_MEM(0xfe480000, 0x10),
 	DEFINE_RES_IRQ(evt2irq(0xc00)),
 	DEFINE_RES_IRQ(evt2irq(0xc20)),
 	DEFINE_RES_IRQ(evt2irq(0xc40)),
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 9999a27449fa..50fffa1f5a33 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2572,9 +2572,15 @@ static int sci_init_single(struct platform_device *dev,
 
 	port->type		= p->type;
 	port->flags		= UPF_FIXED_PORT | UPF_BOOT_AUTOCONF | p->flags;
-	port->regshift		= p->regshift;
 	port->fifosize		= sci_port->params->fifosize;
 
+	if (port->type = PORT_SCI) {
+		if (sci_port->reg_size >= 0x20)
+			port->regshift = 2;
+		else
+			port->regshift = 1;
+	}
+
 	/*
 	 * The UART port needs an IRQ value, so we peg this to the RX IRQ
 	 * for the multi-IRQ ports, which is where we are primarily
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index f9a4526f4ec5..e598eaef3962 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -56,7 +56,6 @@ struct plat_sci_port {
 	/*
 	 * Platform overrides if necessary, defaults otherwise.
 	 */
-	unsigned char	regshift;
 	unsigned char	regtype;
 
 	struct plat_sci_port_ops	*ops;
-- 
Regards,

Laurent Pinchart

Re: [PATCH v1.1 19/19] serial: sh-sci: Compute the regshift value for SCI ports

[Geert Uytterhoeven]

Hi Laurent,

On Fri, Jan 6, 2017 at 1:21 PM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> SCI instances found in SH SoCs have different spacing between registers
> depending on the SoC. The platform data contains a regshift field that
> tells the driver by how many bits to shift the register offset to
> compute its address. We can compute the regshift value automatically
> based on the memory resource size, there's no need to pass the value
> through platform data.
>
> Fix the sh7750 SCI and sh7760 SIM port memory resources length to ensure
> proper computation of the regshift value.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

I've also verified that all H8 DTS files use length "8" in their "renesas,sci"
reg properties.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 00/19] sh-sci: Platform data simplification

[Geert Uytterhoeven]

Hi Laurent,

On Wed, Jan 4, 2017 at 12:06 AM, Laurent Pinchart
<laurent.pinchart+renesas@ideasonboard.com> wrote:
> Most of the patches in this series have been sitting in my development tree
> for three years now. While rebasing all my development branches I decided it
> was time to send them out in case they're considered useful. I've then thrown
> a few additional patches in to move the driver further in the right direction
> (or at least the direction I consider right).
>
> The idea behind this series is to move towards removal of the sh-sci platform
> data. This won't be possible until SH platforms move to DT (and I won't hold
> my breath), but we can get rid of most of the platform data fields already and
> cleanup the sh-sci driver at the same time.

Thanks for your series!

Most of it looks sane to me (cfr. my Reviewed-by tags).

Who's got a SuperH farm to regression test this? ;-)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 00/19] sh-sci: Platform data simplification

[Greg KH]

On Wed, Jan 04, 2017 at 01:06:20AM +0200, Laurent Pinchart wrote:
> Hello,
> 
> Most of the patches in this series have been sitting in my development tree
> for three years now. While rebasing all my development branches I decided it
> was time to send them out in case they're considered useful. I've then thrown
> a few additional patches in to move the driver further in the right direction
> (or at least the direction I consider right).
> 
> The idea behind this series is to move towards removal of the sh-sci platform
> data. This won't be possible until SH platforms move to DT (and I won't hold
> my breath), but we can get rid of most of the platform data fields already and
> cleanup the sh-sci driver at the same time.
> 
> The series already removes the capabilities, port_reg, regshift, dma_slave_tx
> and dma_slave_rx fields. We should be able to go further:
> 
> - The flags field is only used by sh5 to set UPF_IOREMAP. It should be
>   possible to find another way to determine in the driver whether to ioremap
>   the registers.
> 
> - The sampling_rate field is only used by sh7723 and sh7724 to override the
>   value hardcoded in the driver, even though the datasheets of those SoCs
>   don't mention any restriction. This might not be needed and should be
>   investigated.
> 
> - The scscr REIE bit should be possible to compute in the driver, as it's set
>   for all SCIF ports except SCIx_SH3_SCIF_REGTYPE, SCIx_SH7705_SCIF_REGTYPE,
>   and the sh7343 SCIx_SH4_SCIF_REGTYPE. The latter will be trickier to handle.
> 
> - Now that we have support for baud rate generators and externel clocks, the
>   scscr CKE1 bit should be computed in the driver in all cases.
> 
> - The scscr TOIE bit doesn't seem to follow a clear rule, but given that it's
>   the last scscr bit to handle I'm sure we'll find something :-)
> 
> - It might make sense to merge the type and regtype fields in a single type.
> 
> Finally, it might be time to drop support for the SH platforms that would get
> in the way of sh-sci cleanup.

I've merged patches 1, 2, 12, 13, 14, 15, 16, 17, and 18 in my tty tree.

If I should take any others there as well, please let me know.

thanks,

greg k-h

Re: [PATCH 00/19] sh-sci: Platform data simplification

[Geert Uytterhoeven]

Hi Greg,

On Wed, Jan 11, 2017 at 9:04 AM, Greg KH <greg@kroah.com> wrote:
> On Wed, Jan 04, 2017 at 01:06:20AM +0200, Laurent Pinchart wrote:
>> Most of the patches in this series have been sitting in my development tree
>> for three years now. While rebasing all my development branches I decided it
>> was time to send them out in case they're considered useful. I've then thrown
>> a few additional patches in to move the driver further in the right direction
>> (or at least the direction I consider right).
>>
>> The idea behind this series is to move towards removal of the sh-sci platform
>> data. This won't be possible until SH platforms move to DT (and I won't hold
>> my breath), but we can get rid of most of the platform data fields already and
>> cleanup the sh-sci driver at the same time.

>
> I've merged patches 1, 2, 12, 13, 14, 15, 16, 17, and 18 in my tty tree.
>
> If I should take any others there as well, please let me know.

As reported by the kbuild test robot, patch 17 ("serial: sh-sci: Remove
manual break debouncing") depends on patch 7 ("sh: Don't set sh-sci
port_reg").

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 00/19] sh-sci: Platform data simplification

[Greg KH]

On Wed, Jan 11, 2017 at 11:38:15AM +0100, Geert Uytterhoeven wrote:
> Hi Greg,
> 
> On Wed, Jan 11, 2017 at 9:04 AM, Greg KH <greg@kroah.com> wrote:
> > On Wed, Jan 04, 2017 at 01:06:20AM +0200, Laurent Pinchart wrote:
> >> Most of the patches in this series have been sitting in my development tree
> >> for three years now. While rebasing all my development branches I decided it
> >> was time to send them out in case they're considered useful. I've then thrown
> >> a few additional patches in to move the driver further in the right direction
> >> (or at least the direction I consider right).
> >>
> >> The idea behind this series is to move towards removal of the sh-sci platform
> >> data. This won't be possible until SH platforms move to DT (and I won't hold
> >> my breath), but we can get rid of most of the platform data fields already and
> >> cleanup the sh-sci driver at the same time.
> 
> >
> > I've merged patches 1, 2, 12, 13, 14, 15, 16, 17, and 18 in my tty tree.
> >
> > If I should take any others there as well, please let me know.
> 
> As reported by the kbuild test robot, patch 17 ("serial: sh-sci: Remove
> manual break debouncing") depends on patch 7 ("sh: Don't set sh-sci
> port_reg").

Ugh, ok, I can't take all of these.

What do you all suggest?

thanks,

greg k-h

Re: [PATCH 00/19] sh-sci: Platform data simplification

[Laurent Pinchart]

Hi Greg,

On Wednesday 11 Jan 2017 11:43:30 Greg KH wrote:
> On Wed, Jan 11, 2017 at 11:38:15AM +0100, Geert Uytterhoeven wrote:
> > On Wed, Jan 11, 2017 at 9:04 AM, Greg KH <greg@kroah.com> wrote:
> >> On Wed, Jan 04, 2017 at 01:06:20AM +0200, Laurent Pinchart wrote:
> >>> Most of the patches in this series have been sitting in my development
> >>> tree for three years now. While rebasing all my development branches I
> >>> decided it was time to send them out in case they're considered
> >>> useful. I've then thrown a few additional patches in to move the
> >>> driver further in the right direction (or at least the direction I
> >>> consider right).
> >>> 
> >>> The idea behind this series is to move towards removal of the sh-sci
> >>> platform data. This won't be possible until SH platforms move to DT
> >>> (and I won't hold my breath), but we can get rid of most of the
> >>> platform data fields already and cleanup the sh-sci driver at the same
> >>> time.
> >> 
> >> I've merged patches 1, 2, 12, 13, 14, 15, 16, 17, and 18 in my tty tree.
> >> 
> >> If I should take any others there as well, please let me know.
> >
> > As reported by the kbuild test robot, patch 17 ("serial: sh-sci: Remove
> > manual break debouncing") depends on patch 7 ("sh: Don't set sh-sci
> > port_reg").
> 
> Ugh, ok, I can't take all of these.
> 
> What do you all suggest?

There are two patches still missing acks from Geert. I'll repost the whole 
series when he will be done with reviewing them, and you could take it all in 
your tree. The arch/sh/ parts won't conflict, they only touch Renesas platform 
code that nobody has modified for a long time.

-- 
Regards,

Laurent Pinchart

Re: [PATCH 00/19] sh-sci: Platform data simplification

[Greg KH]

On Wed, Jan 11, 2017 at 01:06:04PM +0200, Laurent Pinchart wrote:
> Hi Greg,
> 
> On Wednesday 11 Jan 2017 11:43:30 Greg KH wrote:
> > On Wed, Jan 11, 2017 at 11:38:15AM +0100, Geert Uytterhoeven wrote:
> > > On Wed, Jan 11, 2017 at 9:04 AM, Greg KH <greg@kroah.com> wrote:
> > >> On Wed, Jan 04, 2017 at 01:06:20AM +0200, Laurent Pinchart wrote:
> > >>> Most of the patches in this series have been sitting in my development
> > >>> tree for three years now. While rebasing all my development branches I
> > >>> decided it was time to send them out in case they're considered
> > >>> useful. I've then thrown a few additional patches in to move the
> > >>> driver further in the right direction (or at least the direction I
> > >>> consider right).
> > >>> 
> > >>> The idea behind this series is to move towards removal of the sh-sci
> > >>> platform data. This won't be possible until SH platforms move to DT
> > >>> (and I won't hold my breath), but we can get rid of most of the
> > >>> platform data fields already and cleanup the sh-sci driver at the same
> > >>> time.
> > >> 
> > >> I've merged patches 1, 2, 12, 13, 14, 15, 16, 17, and 18 in my tty tree.
> > >> 
> > >> If I should take any others there as well, please let me know.
> > >
> > > As reported by the kbuild test robot, patch 17 ("serial: sh-sci: Remove
> > > manual break debouncing") depends on patch 7 ("sh: Don't set sh-sci
> > > port_reg").
> > 
> > Ugh, ok, I can't take all of these.
> > 
> > What do you all suggest?
> 
> There are two patches still missing acks from Geert. I'll repost the whole 
> series when he will be done with reviewing them, and you could take it all in 
> your tree. The arch/sh/ parts won't conflict, they only touch Renesas platform 
> code that nobody has modified for a long time.

Ok, I'll drop these and then take your new series after the acks.

thanks,

greg k-h

Re: [PATCH 00/19] sh-sci: Platform data simplification

[Laurent Pinchart]

Hi Greg,

On Wednesday 11 Jan 2017 09:04:37 Greg KH wrote:
> On Wed, Jan 04, 2017 at 01:06:20AM +0200, Laurent Pinchart wrote:
> > Hello,
> > 
> > Most of the patches in this series have been sitting in my development
> > tree for three years now. While rebasing all my development branches I
> > decided it was time to send them out in case they're considered useful.
> > I've then thrown a few additional patches in to move the driver further in
> > the right direction (or at least the direction I consider right).
> > 
> > The idea behind this series is to move towards removal of the sh-sci
> > platform data. This won't be possible until SH platforms move to DT (and
> > I won't hold my breath), but we can get rid of most of the platform data
> > fields already and cleanup the sh-sci driver at the same time.
> > 
> > The series already removes the capabilities, port_reg, regshift,
> > dma_slave_tx and dma_slave_rx fields. We should be able to go further:
> > 
> > - The flags field is only used by sh5 to set UPF_IOREMAP. It should be
> >   possible to find another way to determine in the driver whether to
> >   ioremap the registers.
> > 
> > - The sampling_rate field is only used by sh7723 and sh7724 to override
> >   the value hardcoded in the driver, even though the datasheets of those
> >   SoCs don't mention any restriction. This might not be needed and should
> >   be investigated.
> > 
> > - The scscr REIE bit should be possible to compute in the driver, as it's
> >   set for all SCIF ports except SCIx_SH3_SCIF_REGTYPE,
> >   SCIx_SH7705_SCIF_REGTYPE,
> >   and the sh7343 SCIx_SH4_SCIF_REGTYPE. The latter will be trickier to
> >   handle.
> >
> > - Now that we have support for baud rate generators and externel clocks,
> >   the scscr CKE1 bit should be computed in the driver in all cases.
> > 
> > - The scscr TOIE bit doesn't seem to follow a clear rule, but given that
> >   it's the last scscr bit to handle I'm sure we'll find something :-)
> > 
> > - It might make sense to merge the type and regtype fields in a single
> >   type.
> > 
> > Finally, it might be time to drop support for the SH platforms that would
> > get in the way of sh-sci cleanup.
> 
> I've merged patches 1, 2, 12, 13, 14, 15, 16, 17, and 18 in my tty tree.
> 
> If I should take any others there as well, please let me know.

The other patches are needed, otherwise you'll break compilation of arch/sh/. 
I'm waiting for an ack from Geert on two patches and I'll then repost the 
whole series.

-- 
Regards,

Laurent Pinchart