[PATCH v1 2/7] drm/st7586: Avoid spamming logs if probe is deferred

From: Andy Shevchenko
Date: Wed Apr 21 2021 - 12:32:46 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/st7586.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c
index ff5cf60f4bd7..fdd823e6ed44 100644
--- a/drivers/gpu/drm/tiny/st7586.c
+++ b/drivers/gpu/drm/tiny/st7586.c
@@ -323,16 +323,12 @@ static int st7586_probe(struct spi_device *spi)
bufsize = (st7586_mode.vdisplay + 2) / 3 * st7586_mode.hdisplay;

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");

a0 = devm_gpiod_get(dev, "a0", GPIOD_OUT_LOW);
- if (IS_ERR(a0)) {
- DRM_DEV_ERROR(dev, "Failed to get gpio 'a0'\n");
- return PTR_ERR(a0);
- }
+ if (IS_ERR(a0))
+ return dev_err_probe(dev, PTR_ERR(a0), "Failed to get GPIO 'a0'\n");

device_property_read_u32(dev, "rotation", &rotation);

--
2.30.2