This is a note to let you know that I've just added the patch titled
drm/panel: nv3051d: Hold panel in reset for unprepare
to the 6.6-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-nv3051d-hold-panel-in-reset-for-unprepare.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c84cdad2e26429d05b166c5d97ee3b676b813fd3
Author: Chris Morgan <macromorgan@xxxxxxxxxxx>
Date: Fri Nov 17 14:25:32 2023 -0600
drm/panel: nv3051d: Hold panel in reset for unprepare
[ Upstream commit 697ebc319b942403a6fee894607fd2cd47cca069 ]
Improve the panel's ability to restore from suspend by holding the
panel in suspend after unprepare.
Fixes: b1d39f0f4264 ("drm/panel: Add NewVision NV3051D MIPI-DSI LCD panel")
Signed-off-by: Chris Morgan <macromorgan@xxxxxxxxxxx>
Reviewed-by: Jessica Zhang <quic_jesszhan@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20231117202536.1387815-3-macroalpha82@xxxxxxxxx
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20231117202536.1387815-3-macroalpha82@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
index ad98dd9322b4..227937afe257 100644
--- a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
+++ b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
@@ -261,6 +261,8 @@ static int panel_nv3051d_unprepare(struct drm_panel *panel)
usleep_range(10000, 15000);
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+
regulator_disable(ctx->vdd);
return 0;
