From: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
[ Upstream commit 8a91b29f1f50ce7742cdbe5cf11d17f128511f3f ]
If PLL locking failed, the regulator needs to be disabled again.
Fixes: 5664e3c907e2 ("drm/bridge: ti-sn65dsi83: Add vcc supply regulator support")
Signed-off-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Robert Foss <rfoss@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230504065316.2640739-1-alexander.stein@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/bridge/ti-sn65dsi83.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
index 75286c9afbb96..1f5c07989e2bf 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
@@ -478,6 +478,7 @@ static void sn65dsi83_atomic_enable(struct drm_bridge *bridge,
dev_err(ctx->dev, "failed to lock PLL, ret=%i\n", ret);
/* On failure, disable PLL again and exit. */
regmap_write(ctx->regmap, REG_RC_PLL_EN, 0x00);
+ regulator_disable(ctx->vcc);
return;
}
--
2.39.2
