This is a note to let you know that I've just added the patch titled
drm/panel: boe-tv101wum-nl6: If prepare fails, disable GPIO before regulators
to the 5.10-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-boe-tv101wum-nl6-if-prepare-fails-disable-.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e046b15f59b0052ee88766f811df4a36bb5127e3
Author: Douglas Anderson <dianders@xxxxxxxxxxxx>
Date: Fri May 17 14:36:37 2024 -0700
drm/panel: boe-tv101wum-nl6: If prepare fails, disable GPIO before regulators
[ Upstream commit 587c48f622374e5d47b1d515c6006a4df4dee882 ]
The enable GPIO should clearly be set low before turning off
regulators. That matches both the inverse order that things were
enabled and also the order in unprepare().
Fixes: a869b9db7adf ("drm/panel: support for boe tv101wum-nl6 wuxga dsi video mode panel")
Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240517143643.2.Ieac346cd0f1606948ba39ceea06b55359fe972b6@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20240517143643.2.Ieac346cd0f1606948ba39ceea06b55359fe972b6@changeid
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
index 9e518213a54ff..c448be3d01d16 100644
--- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
+++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
@@ -574,13 +574,13 @@ static int boe_panel_prepare(struct drm_panel *panel)
return 0;
poweroff:
+ gpiod_set_value(boe->enable_gpio, 0);
regulator_disable(boe->avee);
poweroffavdd:
regulator_disable(boe->avdd);
poweroff1v8:
usleep_range(5000, 7000);
regulator_disable(boe->pp1800);
- gpiod_set_value(boe->enable_gpio, 0);
return ret;
}
