From: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
[ Upstream commit 4b03d5e0d3e86ee492d54254927d020dc0fe8acf ]
The datasheet specifies a delay of 10 milliseconds, but the current
driver only waits for 1 ms. Fix this to make sure the initialization
sequence meets the spec.
Fixes: ceb515ba29ba ("drm/bridge: ti-sn65dsi83: Add TI SN65DSI83 and SN65DSI84 driver")
Signed-off-by: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
Reviewed-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
Signed-off-by: Robert Foss <robert.foss@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122081219.20143-1-frieder@xxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/bridge/ti-sn65dsi83.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
index c901c0e1a3b04..b3cb910b30852 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
@@ -381,6 +381,8 @@ static void sn65dsi83_atomic_enable(struct drm_bridge *bridge,
u16 val;
int ret;
+ usleep_range(10000, 11000);
+
/* Get the LVDS format from the bridge state. */
bridge_state = drm_atomic_get_new_bridge_state(state, bridge);
--
2.39.2
