drm/i915/dsi: run backlight on/off sequences in panel enable/disable hooks

Based on the documentation alone, it's anyone's guess when exactly we
should be running these sequences. Add them where it feels logical. The
drm panel hooks don't currently offer us more granularity anyway.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/267c4a2bde2076af18e9b8335c0bef2e26ea3112.1474286487.git.jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
index 2c5d14eb785192ed08fff48634b9fe676222e548..24953f9f7e1db79aef923fd331673971592d6d82 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
@@ -477,12 +477,14 @@ static int vbt_panel_unprepare(struct drm_panel *panel)
 static int vbt_panel_enable(struct drm_panel *panel)
 {
        generic_exec_sequence(panel, MIPI_SEQ_DISPLAY_ON);
+       generic_exec_sequence(panel, MIPI_SEQ_BACKLIGHT_ON);
 
        return 0;
 }
 
 static int vbt_panel_disable(struct drm_panel *panel)
 {
+       generic_exec_sequence(panel, MIPI_SEQ_BACKLIGHT_OFF);
        generic_exec_sequence(panel, MIPI_SEQ_DISPLAY_OFF);
 
        return 0;