leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

dm: video: bridge: don't fail to activate bridge if reset or sleep GPIO is missing

Browse Source 
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@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Tested-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Cc: Vagrant Cascadian <vagrant@debian.org>
This commit is contained in:
Vasily Khoruzhick 2018-11-05 20:24:29 -08:00 committed by Jagan Teki
parent 20940ef2a3
commit 8336a43792
1 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/video/bridge/video-bridge-uclass.c
View File

@ -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;