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drm/panel: simple: Add missing panel_simple_unprepare() calls

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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: d02fd93e2c ("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>
This commit is contained in:
Jonathan Liu 2017-08-07 21:55:45 +10:00 • committed by Greg Kroah-Hartman
parent c7716f6572
commit a155a9568d
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/panel/panel-simple.c
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@ -352,6 +352,7 @@ static int panel_simple_remove(struct device *dev)
drm_panel_remove(&panel->base); drm_panel_remove(&panel->base);
panel_simple_disable(&panel->base); panel_simple_disable(&panel->base);
panel_simple_unprepare(&panel->base);
if (panel->ddc) if (panel->ddc)
put_device(&panel->ddc->dev); put_device(&panel->ddc->dev);
@ -367,6 +368,7 @@ static void panel_simple_shutdown(struct device *dev)
struct panel_simple *panel = dev_get_drvdata(dev); struct panel_simple *panel = dev_get_drvdata(dev);
panel_simple_disable(&panel->base); panel_simple_disable(&panel->base);
panel_simple_unprepare(&panel->base);
} }
static const struct drm_display_mode ampire_am800480r3tmqwa1h_mode = { static const struct drm_display_mode ampire_am800480r3tmqwa1h_mode = {