[U-Boot] [PATCH v4 2/5] dm: video: bridge: don't fail to activate bridge if reset or sleep GPIO is missing

[Vasily Khoruzhick]

Both GPIOs are optional, so we shouldn't fail if any is missing.
Without this fix reset is not deasserted if sleep GPIO is missing.

Signed-off-by: Vasily Khoruzhick <anarsoul at gmail.com>
Acked-by: Maxime Ripard <maxime.ripard at bootlin.com>
Tested-by: Maxime Ripard <maxime.ripard at bootlin.com>
Reviewed-by: Andre Przywara <andre.przywara at arm.com>
Cc: Vagrant Cascadian <vagrant at debian.org>
---
 drivers/video/bridge/video-bridge-uclass.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/video/bridge/video-bridge-uclass.c b/drivers/video/bridge/video-bridge-uclass.c
index cd4959cc71..5fecb4cfd5 100644
--- a/drivers/video/bridge/video-bridge-uclass.c
+++ b/drivers/video/bridge/video-bridge-uclass.c
@@ -106,13 +106,19 @@ static int video_bridge_pre_probe(struct udevice *dev)
 int video_bridge_set_active(struct udevice *dev, bool active)
 {
 	struct video_bridge_priv *uc_priv = dev_get_uclass_priv(dev);
-	int ret;
+	int ret = 0;
 
 	debug("%s: %d\n", __func__, active);
-	ret = dm_gpio_set_value(&uc_priv->sleep, !active);
-	if (ret)
-		return ret;
-	if (active) {
+	if (uc_priv->sleep.dev) {
+		ret = dm_gpio_set_value(&uc_priv->sleep, !active);
+		if (ret)
+			return ret;
+	}
+
+	if (!active)
+		return 0;
+
+	if (uc_priv->reset.dev) {
 		ret = dm_gpio_set_value(&uc_priv->reset, true);
 		if (ret)
 			return ret;
-- 
2.19.1