drm/st7586: Avoid spamming logs if probe is deferred

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@linux.intel.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210421163157.50949-2-andriy.shevchenko@linux.intel.com

diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c
index 7d216fe9267f3fe5217338da45297cde58197218..05db980cc0478182def2f8782cde3c08e5f9b450 100644 (file)
--- 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);