Patch "serial: sh-sci: Fix register offsets for the IRDA serial port" has been added to the 4.4-stable tree

Patch "serial: sh-sci: Fix register offsets for the IRDA serial port" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    serial: sh-sci: Fix register offsets for the IRDA serial port

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     serial-sh-sci-fix-register-offsets-for-the-irda-serial-port.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Thu Nov  9 18:22:51 CET 2017
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 11 Jan 2017 16:43:32 +0200
Subject: serial: sh-sci: Fix register offsets for the IRDA serial port

From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>


[ Upstream commit a752ba18af8285e3eeda572f40dddaebff0c3621 ]

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>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/sh/kernel/cpu/sh3/setup-sh770x.c |    1 -
 drivers/tty/serial/sh-sci.c           |   17 ++++++++---------
 2 files changed, 8 insertions(+), 10 deletions(-)

--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -165,7 +165,6 @@ static struct plat_sci_port scif2_platfo
 	.scscr		= SCSCR_TE | SCSCR_RE,
 	.type		= PORT_IRDA,
 	.ops		= &sh770x_sci_port_ops,
-	.regshift	= 1,
 };
 
 static struct resource scif2_resources[] = {
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -163,18 +163,17 @@ static const struct plat_sci_reg sci_reg
 	},
 
 	/*
-	 * 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, 16 },
+		[SCxRDR]	= { 0x0a,  8 },
+		[SCFCR]		= { 0x0c,  8 },
+		[SCFDR]		= { 0x0e, 16 },
 		[SCTFDR]	= sci_reg_invalid,
 		[SCRFDR]	= sci_reg_invalid,
 		[SCSPTR]	= sci_reg_invalid,


Patches currently in stable-queue which might be from laurent.pinchart+renesas@ideasonboard.com are

queue-4.4/serial-sh-sci-fix-register-offsets-for-the-irda-serial-port.patch