From f3621a8eb59a913612c8e6e37d81f16b649f8b6c Mon Sep 17 00:00:00 2001 From: Jonathan Liu Date: Mon, 7 Aug 2017 21:55:45 +1000 Subject: [PATCH] drm/panel: simple: Add missing panel_simple_unprepare() calls During panel removal or system shutdown panel_simple_disable() is called which disables the panel backlight but the panel is still powered due to missing calls to panel_simple_unprepare(). Fixes: d02fd93e2cd8 ("drm/panel: simple - Disable panel on shutdown") Cc: stable@vger.kernel.org # v3.16+ Signed-off-by: Jonathan Liu Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20170807115545.27747-1-net147@gmail.com --- drivers/gpu/drm/panel/panel-simple.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index b441bd6ed4ad..44756853aa0e 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -370,6 +370,7 @@ static int panel_simple_remove(struct device *dev) drm_panel_remove(&panel->base); panel_simple_disable(&panel->base); + panel_simple_unprepare(&panel->base); if (panel->ddc) put_device(&panel->ddc->dev); @@ -385,6 +386,7 @@ static void panel_simple_shutdown(struct device *dev) struct panel_simple *panel = dev_get_drvdata(dev); panel_simple_disable(&panel->base); + panel_simple_unprepare(&panel->base); } static const struct drm_display_mode ampire_am_480272h3tmqw_t01h_mode = { -- 2.30.2