backlight: pwm_bl: Simplify usage of devm_gpiod_get_optional

Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions),
the gpiod_get* functions take an additional parameter that allows to
specify direction and initial value for output.
Simplify the usage of devm_gpiod_get_optional accordingly.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 3a145a643e0d..57cb9ec8be43 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -241,7 +241,8 @@ static int pwm_backlight_probe(struct platform_device *pdev)
         pb->dev = &pdev->dev;
         pb->enabled = false;
 
-        pb->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable");
+        pb->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable",
+                                                  GPIOD_OUT_HIGH);
         if (IS_ERR(pb->enable_gpio)) {
                 ret = PTR_ERR(pb->enable_gpio);
                 goto err_alloc;
@@ -263,9 +264,6 @@ static int pwm_backlight_probe(struct platform_device *pdev)
                 pb->enable_gpio = gpio_to_desc(data->enable_gpio);
         }
 
-        if (pb->enable_gpio)
-                gpiod_direction_output(pb->enable_gpio, 1);
-
         pb->power_supply = devm_regulator_get(&pdev->dev, "power");
         if (IS_ERR(pb->power_supply)) {
                 ret = PTR_ERR(pb->power_supply);