drm/panel: simple: Use devm_gpiod_get_optional()
Use the new devm_gpiod_get_optional() to simplify the probe code.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 6ae1aad..4ce1db0 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -247,16 +247,14 @@
if (IS_ERR(panel->supply))
return PTR_ERR(panel->supply);
- panel->enable_gpio = devm_gpiod_get(dev, "enable");
+ panel->enable_gpio = devm_gpiod_get_optional(dev, "enable");
if (IS_ERR(panel->enable_gpio)) {
err = PTR_ERR(panel->enable_gpio);
- if (err != -ENOENT) {
- dev_err(dev, "failed to request GPIO: %d\n", err);
- return err;
- }
+ dev_err(dev, "failed to request GPIO: %d\n", err);
+ return err;
+ }
- panel->enable_gpio = NULL;
- } else {
+ if (panel->enable_gpio) {
err = gpiod_direction_output(panel->enable_gpio, 0);
if (err < 0) {
dev_err(dev, "failed to setup GPIO: %d\n", err);