drm/panel: simple: Remove unneeded gpiod NULL check

The gpiod API checks for NULL descriptors, so there is no need to
duplicate the check in the driver.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1500249939-8075-1-git-send-email-festevam@gmail.com

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 44756853aa0eb0ad28301ff56c1dabf39ed31d82..a3c96d2ea41c20ebb928ab46a826bcdb3ab6bc06 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -187,8 +187,7 @@ static int panel_simple_unprepare(struct drm_panel *panel)
        if (!p->prepared)
                return 0;
 
-       if (p->enable_gpio)
-               gpiod_set_value_cansleep(p->enable_gpio, 0);
+       gpiod_set_value_cansleep(p->enable_gpio, 0);
 
        regulator_disable(p->supply);
 
@@ -214,8 +213,7 @@ static int panel_simple_prepare(struct drm_panel *panel)
                return err;
        }
 
-       if (p->enable_gpio)
-               gpiod_set_value_cansleep(p->enable_gpio, 1);
+       gpiod_set_value_cansleep(p->enable_gpio, 1);
 
        if (p->desc->delay.prepare)
                msleep(p->desc->delay.prepare);