2013-05-21 14:24:48

by Fabio Estevam

[permalink] [raw]
Subject: [PATCH v2 1/3] imx-drm: imx-tve: Check the return value of 'regulator_enable()'

Since commit c8801a8 (regulator: core: Mark all get and enable calls as
__must_check) we need to check the value returned by 'regulator_enable()'.

Do this check to get rid of the following build warning:

drivers/staging/imx-drm/imx-tve.c: In function 'imx_tve_probe':
drivers/staging/imx-drm/imx-tve.c:671:19: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result]

Signed-off-by: Fabio Estevam <[email protected]>
Acked-by: Shawn Guo <[email protected]>
Acked-by: Sascha Hauer <[email protected]>
---
Changes since v1:
- Use 'build warning' instead of 'build error' in commit log
- Also mention the commit that requires the checking
- Added Ack's

drivers/staging/imx-drm/imx-tve.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/imx-drm/imx-tve.c b/drivers/staging/imx-drm/imx-tve.c
index a6efa8f6..ce65ad3 100644
--- a/drivers/staging/imx-drm/imx-tve.c
+++ b/drivers/staging/imx-drm/imx-tve.c
@@ -668,7 +668,9 @@ static int imx_tve_probe(struct platform_device *pdev)
tve->dac_reg = devm_regulator_get(&pdev->dev, "dac");
if (!IS_ERR(tve->dac_reg)) {
regulator_set_voltage(tve->dac_reg, 2750000, 2750000);
- regulator_enable(tve->dac_reg);
+ ret = regulator_enable(tve->dac_reg);
+ if (ret)
+ return ret;
}

tve->clk = devm_clk_get(&pdev->dev, "tve");
--
1.8.1.2


2013-05-21 14:24:56

by Fabio Estevam

[permalink] [raw]
Subject: [PATCH v2 3/3] imx-drm: parallel-display: Let device core handle pinctrl

Since commit ab78029 (drivers/pinctrl: grab default handles from device core)
we can rely on device core for handling pinctrl, so remove
devm_pinctrl_get_select_default() from the driver.

Signed-off-by: Fabio Estevam <[email protected]>
Acked-by: Shawn Guo <[email protected]>
Acked-by: Sascha Hauer <[email protected]>
---
Changes since v1:
- Added Ack's

drivers/staging/imx-drm/parallel-display.c | 10 ----------
1 file changed, 10 deletions(-)

diff --git a/drivers/staging/imx-drm/parallel-display.c b/drivers/staging/imx-drm/parallel-display.c
index e7fba62..f324ed3 100644
--- a/drivers/staging/imx-drm/parallel-display.c
+++ b/drivers/staging/imx-drm/parallel-display.c
@@ -23,7 +23,6 @@
#include <drm/drm_fb_helper.h>
#include <drm/drm_crtc_helper.h>
#include <linux/videodev2.h>
-#include <linux/pinctrl/consumer.h>

#include "imx-drm.h"

@@ -206,20 +205,11 @@ static int imx_pd_probe(struct platform_device *pdev)
struct imx_parallel_display *imxpd;
int ret;
const char *fmt;
- struct pinctrl *pinctrl;

imxpd = devm_kzalloc(&pdev->dev, sizeof(*imxpd), GFP_KERNEL);
if (!imxpd)
return -ENOMEM;

- pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
- if (IS_ERR(pinctrl)) {
- ret = PTR_ERR(pinctrl);
- dev_warn(&pdev->dev, "pinctrl_get_select_default failed with %d",
- ret);
- return ret;
- }
-
edidp = of_get_property(np, "edid", &imxpd->edid_len);
if (edidp)
imxpd->edid = kmemdup(edidp, imxpd->edid_len, GFP_KERNEL);
--
1.8.1.2

2013-05-21 14:25:05

by Fabio Estevam

[permalink] [raw]
Subject: [PATCH v2 2/3] imx-drm: imx-tve: Let device core handle pinctrl

Since commit ab78029 (drivers/pinctrl: grab default handles from device core)
we can rely on device core for handling pinctrl, so remove
devm_pinctrl_get_select_default() from the driver.

Signed-off-by: Fabio Estevam <[email protected]>
Acked-by: Shawn Guo <[email protected]>
Acked-by: Sascha Hauer <[email protected]>
---
Changes since v1:
- Added Ack's

drivers/staging/imx-drm/imx-tve.c | 10 ----------
1 file changed, 10 deletions(-)

diff --git a/drivers/staging/imx-drm/imx-tve.c b/drivers/staging/imx-drm/imx-tve.c
index ce65ad3..a56797d 100644
--- a/drivers/staging/imx-drm/imx-tve.c
+++ b/drivers/staging/imx-drm/imx-tve.c
@@ -22,7 +22,6 @@
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/of_i2c.h>
-#include <linux/pinctrl/consumer.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/spinlock.h>
@@ -610,15 +609,6 @@ static int imx_tve_probe(struct platform_device *pdev)
}

if (tve->mode == TVE_MODE_VGA) {
- struct pinctrl *pinctrl;
-
- pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
- if (IS_ERR(pinctrl)) {
- ret = PTR_ERR(pinctrl);
- dev_warn(&pdev->dev, "failed to setup pinctrl: %d", ret);
- return ret;
- }
-
ret = of_property_read_u32(np, "fsl,hsync-pin", &tve->hsync_pin);
if (ret < 0) {
dev_err(&pdev->dev, "failed to get vsync pin\n");
--
1.8.1.2