[PATCH v1 1/7] drm/st7735r: Avoid spamming logs if probe is deferred

From: Andy Shevchenko
Date: Wed Apr 21 2021 - 12:32:04 EST


The GPIO request can fail and probe may be deferred. Thus,
the error message may be printed again and again. Avoid
this by replacing DRM_DEV_ERROR() by dev_err_probe().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/tiny/st7735r.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c
index faaba0a033ea..e3cbaa846e2b 100644
--- a/drivers/gpu/drm/tiny/st7735r.c
+++ b/drivers/gpu/drm/tiny/st7735r.c
@@ -207,16 +207,12 @@ static int st7735r_probe(struct spi_device *spi)
drm = &dbidev->drm;

dbi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
- if (IS_ERR(dbi->reset)) {
- DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n");
- return PTR_ERR(dbi->reset);
- }
+ if (IS_ERR(dbi->reset))
+ return dev_err_probe(dev, PTR_ERR(dbi->reset), "Failed to get GPIO 'reset'\n");

dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW);
- if (IS_ERR(dc)) {
- DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n");
- return PTR_ERR(dc);
- }
+ if (IS_ERR(dc))
+ return dev_err_probe(dev, PTR_ERR(dc), "Failed to get GPIO 'dc'\n");

dbidev->backlight = devm_of_find_backlight(dev);
if (IS_ERR(dbidev->backlight))
--
2.30.2