power: reset: ltc2952: use _optional variant of devm_gpiod_get
devm_gpiod_get_optional returns NULL if devm_gpiod_get would return an
ENOENT error pointer.
There is no semantic change intended.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
diff --git a/drivers/power/reset/ltc2952-poweroff.c b/drivers/power/reset/ltc2952-poweroff.c
index 1e08195..62c91ac 100644
--- a/drivers/power/reset/ltc2952-poweroff.c
+++ b/drivers/power/reset/ltc2952-poweroff.c
@@ -202,16 +202,15 @@
return ret;
}
- data->gpio_trigger = devm_gpiod_get(&pdev->dev, "trigger", GPIOD_IN);
+ data->gpio_trigger = devm_gpiod_get_optional(&pdev->dev, "trigger",
+ GPIOD_IN);
if (IS_ERR(data->gpio_trigger)) {
/*
* It's not a problem if the trigger gpio isn't available, but
* it is worth a warning if its use was defined in the device
* tree.
*/
- if (PTR_ERR(data->gpio_trigger) != -ENOENT)
- dev_err(&pdev->dev,
- "unable to claim gpio \"trigger\"\n");
+ dev_err(&pdev->dev, "unable to claim gpio \"trigger\"\n");
data->gpio_trigger = NULL;
}