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authorJani Nikula <jani.nikula@intel.com>2013-04-12 15:18:38 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-04-18 09:43:23 +0200
commitdc652f90e088798bfa31f496ba994ddadd5d5680 (patch)
treebe9e4f7816a2316033e7dd5782ecd537ba8ccf2b /drivers/gpu/drm/i915/intel_display.c
parentf7708f78bd51a46abf00ae22ebb1b7deb594fc62 (diff)
drm/i915: ensure single initialization and cleanup of backlight device
Backlight cleanup in the eDP connector destroy callback caused the backlight device to be removed on some systems that first initialized LVDS and then attempted to initialize eDP. Prevent multiple backlight initializations, and ensure backlight cleanup is only done once by moving it to modeset cleanup. A small wrinkle is the introduced asymmetry in backlight setup/cleanup. This could be solved by adding refcounting, but it seems overkill considering that there should only ever be one backlight device. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=55701 Signed-off-by: Jani Nikula <jani.nikula@intel.com> Tested-by: Peter Verthez <peter.verthez@skynet.be> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
-rw-r--r--drivers/gpu/drm/i915/intel_display.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 51871c248d6..7672f3e49df 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9423,6 +9423,9 @@ void intel_modeset_cleanup(struct drm_device *dev)
/* flush any delayed tasks or pending work */
flush_scheduled_work();
+ /* destroy backlight, if any, before the connectors */
+ intel_panel_destroy_backlight(dev);
+
drm_mode_config_cleanup(dev);
intel_cleanup_overlay(dev);