[PATCH 1/4] fbdev: omapfb: panel-lgphilips-lb035q02: Make use of the helper function dev_err_probe()

Subsystems: framebuffer layer, omap display subsystem and framebuffer support (dss2), the rest

STALE1852d

4 messages, 1 author, 2021-09-17 · open the first message on its own page

[PATCH 1/4] fbdev: omapfb: panel-lgphilips-lb035q02: Make use of the helper function dev_err_probe()

From: Cai Huoqing <hidden>
Date: 2021-09-17 04:24:25

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <redacted>
---
 .../fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
index 1bec7a4422e8..6befd22dbd5c 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c

@@ -244,10 +244,9 @@ static int lb035q02_probe_of(struct spi_device *spi)
 	struct gpio_desc *gpio;
 
 	gpio = devm_gpiod_get(&spi->dev, "enable", GPIOD_OUT_LOW);
-	if (IS_ERR(gpio)) {
-		dev_err(&spi->dev, "failed to parse enable gpio\n");
-		return PTR_ERR(gpio);
-	}
+	if (IS_ERR(gpio))
+		return dev_err_probe(&spi->dev, PTR_ERR(gpio),
+				     "failed to parse enable gpio\n");
 
 	ddata->enable_gpio = gpio;

-- 
2.25.1

[PATCH 2/4] fbdev: omapfb: lcd_ams_delta: Make use of the helper function dev_err_probe()

From: Cai Huoqing <hidden>
Date: 2021-09-17 04:24:27

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <redacted>
---
 drivers/video/fbdev/omap/lcd_ams_delta.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/video/fbdev/omap/lcd_ams_delta.c b/drivers/video/fbdev/omap/lcd_ams_delta.c
index 8e54aae544a0..bbf871f9d862 100644
--- a/drivers/video/fbdev/omap/lcd_ams_delta.c
+++ b/drivers/video/fbdev/omap/lcd_ams_delta.c

@@ -131,18 +131,14 @@ static int ams_delta_panel_probe(struct platform_device *pdev)
 	int ret;
 
 	gpiod_vblen = devm_gpiod_get(&pdev->dev, "vblen", GPIOD_OUT_LOW);
-	if (IS_ERR(gpiod_vblen)) {
-		ret = PTR_ERR(gpiod_vblen);
-		dev_err(&pdev->dev, "VBLEN GPIO request failed (%d)\n", ret);
-		return ret;
-	}
+	if (IS_ERR(gpiod_vblen))
+		return dev_err_probe(&pdev->dev, PTR_ERR(gpiod_vblen),
+				     "VBLEN GPIO request failed\n");
 
 	gpiod_ndisp = devm_gpiod_get(&pdev->dev, "ndisp", GPIOD_OUT_LOW);
-	if (IS_ERR(gpiod_ndisp)) {
-		ret = PTR_ERR(gpiod_ndisp);
-		dev_err(&pdev->dev, "NDISP GPIO request failed (%d)\n", ret);
-		return ret;
-	}
+	if (IS_ERR(gpiod_ndisp))
+		return dev_err_probe(&pdev->dev, PTR_ERR(gpiod_ndisp),
+				     "NDISP GPIO request failed\n");
 
 #ifdef CONFIG_LCD_CLASS_DEVICE
 	lcd_device = lcd_device_register("omapfb", &pdev->dev, NULL,

-- 
2.25.1

[PATCH 3/4] fbdev: omapfb: panel-sharp-ls037v7dw01: Make use of the helper function dev_err_probe()

From: Cai Huoqing <hidden>
Date: 2021-09-17 04:24:32

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <redacted>
---
 .../fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c  | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
index 602324c5c9f9..f1072c319de8 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c

@@ -211,10 +211,9 @@ static int sharp_ls_probe_of(struct platform_device *pdev)
 	int r;
 
 	ddata->vcc = devm_regulator_get(&pdev->dev, "envdd");
-	if (IS_ERR(ddata->vcc)) {
-		dev_err(&pdev->dev, "failed to get regulator\n");
-		return PTR_ERR(ddata->vcc);
-	}
+	if (IS_ERR(ddata->vcc))
+		return dev_err_probe(&pdev->dev, PTR_ERR(ddata->vcc),
+				     "failed to get regulator\n");
 
 	/* lcd INI */
 	r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "enable", &ddata->ini_gpio);

-- 
2.25.1

[PATCH 4/4] fbdev: omapfb: panel-tpo-td043mtea1: Make use of the helper function dev_err_probe()

From: Cai Huoqing <hidden>
Date: 2021-09-17 04:24:33

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <redacted>
---
 .../video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c   | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
index afac1d9445aa..3db0232c31ab 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c

@@ -517,8 +517,7 @@ static int tpo_td043_probe(struct spi_device *spi)
 
 	ddata->vcc_reg = devm_regulator_get(&spi->dev, "vcc");
 	if (IS_ERR(ddata->vcc_reg)) {
-		dev_err(&spi->dev, "failed to get LCD VCC regulator\n");
-		r = PTR_ERR(ddata->vcc_reg);
+		r = dev_err_probe(&spi->dev, r, "failed to get LCD VCC regulator\n");
 		goto err_regulator;
 	}

-- 
2.25.1

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