This is a note to let you know that I've just added the patch titled
drm/panel-edp: Fix delays for Innolux N116BCA-EA1
to the 5.19-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-panel-edp-fix-delays-for-innolux-n116bca-ea1.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b5a477cfe1e8ae8d4b1bc9c917238d2bc90dd95d
Author: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
Date: Thu Sep 8 16:54:53 2022 +0800
drm/panel-edp: Fix delays for Innolux N116BCA-EA1
[ Upstream commit 8f7115c1923cd11146525f1615beb29018001964 ]
Commit 52824ca4502d ("drm/panel-edp: Better describe eDP panel delays")
clarified the various delays used for eDP panels, tying them to the eDP
panel timing diagram.
For Innolux N116BCA-EA1, .prepare_to_enable would be:
t4_min + t5_min + t6_min + max(t7_max, t8_min)
Since t4_min and t5_min are both 0, the panel can use either .enable or
.prepare_to_enable.
As .enable is better defined, switch to using .enable for this panel.
Also add .disable = 50, based on the datasheet's t9_min value. This
effectively makes the delays the same as delay_200_500_e80_d50.
Cc: Douglas Anderson <dianders@xxxxxxxxxxxx>
Fixes: 51d35631c970 ("drm/panel-simple: Add N116BCA-EA1")
Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20220908085454.1024167-1-wenst@xxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c
index a189982601a4..e8040defe607 100644
--- a/drivers/gpu/drm/panel/panel-edp.c
+++ b/drivers/gpu/drm/panel/panel-edp.c
@@ -1270,7 +1270,8 @@ static const struct panel_desc innolux_n116bca_ea1 = {
},
.delay = {
.hpd_absent = 200,
- .prepare_to_enable = 80,
+ .enable = 80,
+ .disable = 50,
.unprepare = 500,
},
};
