This is a note to let you know that I've just added the patch titled
drm/bridge: ti-sn65dsi83: Fix delay after reset deassert to match spec
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-bridge-ti-sn65dsi83-fix-delay-after-reset-deasse.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4fcb110be1a8b7947da2035e137e79efc91d6090
Author: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
Date: Tue Nov 22 09:12:18 2022 +0100
drm/bridge: ti-sn65dsi83: Fix delay after reset deassert to match spec
[ 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>
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
index 7ba9467fff129..047c14ddbbf11 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
@@ -346,7 +346,7 @@ static void sn65dsi83_atomic_enable(struct drm_bridge *bridge,
/* Deassert reset */
gpiod_set_value_cansleep(ctx->enable_gpio, 1);
- usleep_range(1000, 1100);
+ usleep_range(10000, 11000);
/* Get the LVDS format from the bridge state. */
bridge_state = drm_atomic_get_new_bridge_state(state, bridge);
