From: Stephen Boyd <sboyd@codeaurora.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-serial@vger.kernel.org, David Brown <davidb@codeaurora.org>
Subject: [PATCH 1/4] msm_serial: Switch clock consumer strings and simplify code
Date: Mon, 19 Aug 2013 14:39:54 -0700 [thread overview]
Message-ID: <1376948397-6882-2-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <1376948397-6882-1-git-send-email-sboyd@codeaurora.org>
In downstream kernels we've standardized the clock consumer names
that MSM device drivers use. Replace the uart specific clock
names in this driver with the more standard 'core_clk' and
'iface_clk' names. Also simplify the code by assuming that
clk_prepare_enable() and clk_disable_unprepare() will properly
check for NULL pointers (it will because MSM uses the common
clock framework).
Cc: David Brown <davidb@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
arch/arm/mach-msm/devices-msm7x00.c | 6 +++---
arch/arm/mach-msm/devices-msm7x30.c | 2 +-
arch/arm/mach-msm/devices-qsd8x50.c | 6 +++---
drivers/tty/serial/msm_serial.c | 19 +++++--------------
4 files changed, 12 insertions(+), 21 deletions(-)
diff --git a/arch/arm/mach-msm/devices-msm7x00.c b/arch/arm/mach-msm/devices-msm7x00.c
index 6d50fb9..aa2a3c7 100644
--- a/arch/arm/mach-msm/devices-msm7x00.c
+++ b/arch/arm/mach-msm/devices-msm7x00.c
@@ -456,9 +456,9 @@ static struct clk_pcom_desc msm_clocks_7x01a[] = {
CLK_PCOM("tsif_ref_clk", TSIF_REF_CLK, NULL, 0),
CLK_PCOM("tv_dac_clk", TV_DAC_CLK, NULL, 0),
CLK_PCOM("tv_enc_clk", TV_ENC_CLK, NULL, 0),
- CLK_PCOM("uart_clk", UART1_CLK, "msm_serial.0", OFF),
- CLK_PCOM("uart_clk", UART2_CLK, "msm_serial.1", 0),
- CLK_PCOM("uart_clk", UART3_CLK, "msm_serial.2", OFF),
+ CLK_PCOM("core_clk", UART1_CLK, "msm_serial.0", OFF),
+ CLK_PCOM("core_clk", UART2_CLK, "msm_serial.1", 0),
+ CLK_PCOM("core_clk", UART3_CLK, "msm_serial.2", OFF),
CLK_PCOM("uart1dm_clk", UART1DM_CLK, NULL, OFF),
CLK_PCOM("uart2dm_clk", UART2DM_CLK, NULL, 0),
CLK_PCOM("usb_hs_clk", USB_HS_CLK, "msm_hsusb", OFF),
diff --git a/arch/arm/mach-msm/devices-msm7x30.c b/arch/arm/mach-msm/devices-msm7x30.c
index d4db75a..597251e 100644
--- a/arch/arm/mach-msm/devices-msm7x30.c
+++ b/arch/arm/mach-msm/devices-msm7x30.c
@@ -211,7 +211,7 @@ static struct clk_pcom_desc msm_clocks_7x30[] = {
CLK_PCOM("spi_pclk", SPI_P_CLK, NULL, 0),
CLK_PCOM("tv_dac_clk", TV_DAC_CLK, NULL, 0),
CLK_PCOM("tv_enc_clk", TV_ENC_CLK, NULL, 0),
- CLK_PCOM("uart_clk", UART2_CLK, "msm_serial.1", 0),
+ CLK_PCOM("core_clk", UART2_CLK, "msm_serial.1", 0),
CLK_PCOM("usb_phy_clk", USB_PHY_CLK, NULL, 0),
CLK_PCOM("usb_hs_clk", USB_HS_CLK, NULL, OFF),
CLK_PCOM("usb_hs_pclk", USB_HS_P_CLK, NULL, OFF),
diff --git a/arch/arm/mach-msm/devices-qsd8x50.c b/arch/arm/mach-msm/devices-qsd8x50.c
index f551811..b7344a4 100644
--- a/arch/arm/mach-msm/devices-qsd8x50.c
+++ b/arch/arm/mach-msm/devices-qsd8x50.c
@@ -358,9 +358,9 @@ static struct clk_pcom_desc msm_clocks_8x50[] = {
CLK_PCOM("tsif_ref_clk", TSIF_REF_CLK, NULL, 0),
CLK_PCOM("tv_dac_clk", TV_DAC_CLK, NULL, 0),
CLK_PCOM("tv_enc_clk", TV_ENC_CLK, NULL, 0),
- CLK_PCOM("uart_clk", UART1_CLK, NULL, OFF),
- CLK_PCOM("uart_clk", UART2_CLK, NULL, 0),
- CLK_PCOM("uart_clk", UART3_CLK, "msm_serial.2", OFF),
+ CLK_PCOM("core_clk", UART1_CLK, NULL, OFF),
+ CLK_PCOM("core_clk", UART2_CLK, NULL, 0),
+ CLK_PCOM("core_clk", UART3_CLK, "msm_serial.2", OFF),
CLK_PCOM("uartdm_clk", UART1DM_CLK, NULL, OFF),
CLK_PCOM("uartdm_clk", UART2DM_CLK, NULL, 0),
CLK_PCOM("usb_hs_clk", USB_HS_CLK, NULL, OFF),
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 97642ec..7631313 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -416,8 +416,7 @@ static void msm_init_clock(struct uart_port *port)
struct msm_port *msm_port = UART_TO_MSM(port);
clk_prepare_enable(msm_port->clk);
- if (!IS_ERR(msm_port->pclk))
- clk_prepare_enable(msm_port->pclk);
+ clk_prepare_enable(msm_port->pclk);
msm_serial_set_mnd_regs(port);
}
@@ -693,13 +692,11 @@ static void msm_power(struct uart_port *port, unsigned int state,
switch (state) {
case 0:
clk_prepare_enable(msm_port->clk);
- if (!IS_ERR(msm_port->pclk))
- clk_prepare_enable(msm_port->pclk);
+ clk_prepare_enable(msm_port->pclk);
break;
case 3:
clk_disable_unprepare(msm_port->clk);
- if (!IS_ERR(msm_port->pclk))
- clk_disable_unprepare(msm_port->pclk);
+ clk_disable_unprepare(msm_port->pclk);
break;
default:
printk(KERN_ERR "msm_serial: Unknown PM state %d\n", state);
@@ -887,18 +884,12 @@ static int __init msm_serial_probe(struct platform_device *pdev)
else
msm_port->is_uartdm = 0;
- if (msm_port->is_uartdm) {
- msm_port->clk = devm_clk_get(&pdev->dev, "gsbi_uart_clk");
- msm_port->pclk = devm_clk_get(&pdev->dev, "gsbi_pclk");
- } else {
- msm_port->clk = devm_clk_get(&pdev->dev, "uart_clk");
- msm_port->pclk = ERR_PTR(-ENOENT);
- }
-
+ msm_port->clk = devm_clk_get(&pdev->dev, "core_clk");
if (IS_ERR(msm_port->clk))
return PTR_ERR(msm_port->clk);
if (msm_port->is_uartdm) {
+ msm_port->pclk = devm_clk_get(&pdev->dev, "iface_clk");
if (IS_ERR(msm_port->pclk))
return PTR_ERR(msm_port->pclk);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
WARNING: multiple messages have this Message-ID (diff)
From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/4] msm_serial: Switch clock consumer strings and simplify code
Date: Mon, 19 Aug 2013 14:39:54 -0700 [thread overview]
Message-ID: <1376948397-6882-2-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <1376948397-6882-1-git-send-email-sboyd@codeaurora.org>
In downstream kernels we've standardized the clock consumer names
that MSM device drivers use. Replace the uart specific clock
names in this driver with the more standard 'core_clk' and
'iface_clk' names. Also simplify the code by assuming that
clk_prepare_enable() and clk_disable_unprepare() will properly
check for NULL pointers (it will because MSM uses the common
clock framework).
Cc: David Brown <davidb@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
arch/arm/mach-msm/devices-msm7x00.c | 6 +++---
arch/arm/mach-msm/devices-msm7x30.c | 2 +-
arch/arm/mach-msm/devices-qsd8x50.c | 6 +++---
drivers/tty/serial/msm_serial.c | 19 +++++--------------
4 files changed, 12 insertions(+), 21 deletions(-)
diff --git a/arch/arm/mach-msm/devices-msm7x00.c b/arch/arm/mach-msm/devices-msm7x00.c
index 6d50fb9..aa2a3c7 100644
--- a/arch/arm/mach-msm/devices-msm7x00.c
+++ b/arch/arm/mach-msm/devices-msm7x00.c
@@ -456,9 +456,9 @@ static struct clk_pcom_desc msm_clocks_7x01a[] = {
CLK_PCOM("tsif_ref_clk", TSIF_REF_CLK, NULL, 0),
CLK_PCOM("tv_dac_clk", TV_DAC_CLK, NULL, 0),
CLK_PCOM("tv_enc_clk", TV_ENC_CLK, NULL, 0),
- CLK_PCOM("uart_clk", UART1_CLK, "msm_serial.0", OFF),
- CLK_PCOM("uart_clk", UART2_CLK, "msm_serial.1", 0),
- CLK_PCOM("uart_clk", UART3_CLK, "msm_serial.2", OFF),
+ CLK_PCOM("core_clk", UART1_CLK, "msm_serial.0", OFF),
+ CLK_PCOM("core_clk", UART2_CLK, "msm_serial.1", 0),
+ CLK_PCOM("core_clk", UART3_CLK, "msm_serial.2", OFF),
CLK_PCOM("uart1dm_clk", UART1DM_CLK, NULL, OFF),
CLK_PCOM("uart2dm_clk", UART2DM_CLK, NULL, 0),
CLK_PCOM("usb_hs_clk", USB_HS_CLK, "msm_hsusb", OFF),
diff --git a/arch/arm/mach-msm/devices-msm7x30.c b/arch/arm/mach-msm/devices-msm7x30.c
index d4db75a..597251e 100644
--- a/arch/arm/mach-msm/devices-msm7x30.c
+++ b/arch/arm/mach-msm/devices-msm7x30.c
@@ -211,7 +211,7 @@ static struct clk_pcom_desc msm_clocks_7x30[] = {
CLK_PCOM("spi_pclk", SPI_P_CLK, NULL, 0),
CLK_PCOM("tv_dac_clk", TV_DAC_CLK, NULL, 0),
CLK_PCOM("tv_enc_clk", TV_ENC_CLK, NULL, 0),
- CLK_PCOM("uart_clk", UART2_CLK, "msm_serial.1", 0),
+ CLK_PCOM("core_clk", UART2_CLK, "msm_serial.1", 0),
CLK_PCOM("usb_phy_clk", USB_PHY_CLK, NULL, 0),
CLK_PCOM("usb_hs_clk", USB_HS_CLK, NULL, OFF),
CLK_PCOM("usb_hs_pclk", USB_HS_P_CLK, NULL, OFF),
diff --git a/arch/arm/mach-msm/devices-qsd8x50.c b/arch/arm/mach-msm/devices-qsd8x50.c
index f551811..b7344a4 100644
--- a/arch/arm/mach-msm/devices-qsd8x50.c
+++ b/arch/arm/mach-msm/devices-qsd8x50.c
@@ -358,9 +358,9 @@ static struct clk_pcom_desc msm_clocks_8x50[] = {
CLK_PCOM("tsif_ref_clk", TSIF_REF_CLK, NULL, 0),
CLK_PCOM("tv_dac_clk", TV_DAC_CLK, NULL, 0),
CLK_PCOM("tv_enc_clk", TV_ENC_CLK, NULL, 0),
- CLK_PCOM("uart_clk", UART1_CLK, NULL, OFF),
- CLK_PCOM("uart_clk", UART2_CLK, NULL, 0),
- CLK_PCOM("uart_clk", UART3_CLK, "msm_serial.2", OFF),
+ CLK_PCOM("core_clk", UART1_CLK, NULL, OFF),
+ CLK_PCOM("core_clk", UART2_CLK, NULL, 0),
+ CLK_PCOM("core_clk", UART3_CLK, "msm_serial.2", OFF),
CLK_PCOM("uartdm_clk", UART1DM_CLK, NULL, OFF),
CLK_PCOM("uartdm_clk", UART2DM_CLK, NULL, 0),
CLK_PCOM("usb_hs_clk", USB_HS_CLK, NULL, OFF),
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 97642ec..7631313 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -416,8 +416,7 @@ static void msm_init_clock(struct uart_port *port)
struct msm_port *msm_port = UART_TO_MSM(port);
clk_prepare_enable(msm_port->clk);
- if (!IS_ERR(msm_port->pclk))
- clk_prepare_enable(msm_port->pclk);
+ clk_prepare_enable(msm_port->pclk);
msm_serial_set_mnd_regs(port);
}
@@ -693,13 +692,11 @@ static void msm_power(struct uart_port *port, unsigned int state,
switch (state) {
case 0:
clk_prepare_enable(msm_port->clk);
- if (!IS_ERR(msm_port->pclk))
- clk_prepare_enable(msm_port->pclk);
+ clk_prepare_enable(msm_port->pclk);
break;
case 3:
clk_disable_unprepare(msm_port->clk);
- if (!IS_ERR(msm_port->pclk))
- clk_disable_unprepare(msm_port->pclk);
+ clk_disable_unprepare(msm_port->pclk);
break;
default:
printk(KERN_ERR "msm_serial: Unknown PM state %d\n", state);
@@ -887,18 +884,12 @@ static int __init msm_serial_probe(struct platform_device *pdev)
else
msm_port->is_uartdm = 0;
- if (msm_port->is_uartdm) {
- msm_port->clk = devm_clk_get(&pdev->dev, "gsbi_uart_clk");
- msm_port->pclk = devm_clk_get(&pdev->dev, "gsbi_pclk");
- } else {
- msm_port->clk = devm_clk_get(&pdev->dev, "uart_clk");
- msm_port->pclk = ERR_PTR(-ENOENT);
- }
-
+ msm_port->clk = devm_clk_get(&pdev->dev, "core_clk");
if (IS_ERR(msm_port->clk))
return PTR_ERR(msm_port->clk);
if (msm_port->is_uartdm) {
+ msm_port->pclk = devm_clk_get(&pdev->dev, "iface_clk");
if (IS_ERR(msm_port->pclk))
return PTR_ERR(msm_port->pclk);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
next prev parent reply other threads:[~2013-08-19 21:39 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-19 21:39 [PATCH 0/4] Document msm_serial bindings and support newer uartdms Stephen Boyd
2013-08-19 21:39 ` Stephen Boyd
2013-08-19 21:39 ` Stephen Boyd
2013-08-19 21:39 ` Stephen Boyd [this message]
2013-08-19 21:39 ` [PATCH 1/4] msm_serial: Switch clock consumer strings and simplify code Stephen Boyd
2013-08-19 21:39 ` [PATCH 2/4] devicetree: serial: Document msm_serial bindings Stephen Boyd
2013-08-19 21:39 ` Stephen Boyd
2013-08-19 21:39 ` Stephen Boyd
2013-08-20 14:41 ` Kumar Gala
2013-08-20 14:41 ` Kumar Gala
2013-08-20 14:41 ` Kumar Gala
2013-08-20 17:00 ` Stephen Boyd
2013-08-20 17:00 ` Stephen Boyd
2013-08-20 18:03 ` Kumar Gala
2013-08-20 18:03 ` Kumar Gala
2013-08-19 21:39 ` [PATCH 3/4] msm_serial: Add support for non-GSBI UARTDM devices Stephen Boyd
2013-08-19 21:39 ` Stephen Boyd
2013-08-19 21:39 ` Stephen Boyd
2013-08-19 21:39 ` [PATCH 4/4] ARM: dts: msm: Update uartdm compatible strings Stephen Boyd
2013-08-19 21:39 ` Stephen Boyd
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1376948397-6882-2-git-send-email-sboyd@codeaurora.org \
--to=sboyd@codeaurora.org \
--cc=davidb@codeaurora.org \
--cc=gregkh@linuxfoundation.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.