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authorJonathan Liu <net147@gmail.com>2017-08-07 14:55:45 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-05 13:20:47 +0300
commit72427ea588e3eaf0170f87c0ad4b8a568979771d (patch)
tree25c0e542642a2276c0f4dae2dd8ade7cdb6d76ba
parent165a3c7d786e16dc4a84403b73d18dac9ea97f7d (diff)
downloadlinux-72427ea588e3eaf0170f87c0ad4b8a568979771d.tar.xz
drm/panel: simple: Add missing panel_simple_unprepare() calls
commit f3621a8eb59a913612c8e6e37d81f16b649f8b6c upstream. 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") Signed-off-by: Jonathan Liu <net147@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170807115545.27747-1-net147@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/gpu/drm/panel/panel-simple.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 23de22f8c820..7a4faf911ee8 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -312,6 +312,7 @@ 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);
@@ -327,6 +328,7 @@ 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 auo_b101aw03_mode = {