Merge remote-tracking branches 'regulator/topic/lp8755', 'regulator/topic/ltc3589...

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / intel_panel.c

diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 38a98570d10c864207d7f4ce7180a9795f30f9dc..12b02fe1d0aed7349662932bad8c38b53d914ac3 100644 (file)
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -361,16 +361,16 @@ void intel_gmch_panel_fitting(struct intel_crtc *intel_crtc,
                pfit_control |= ((intel_crtc->pipe << PFIT_PIPE_SHIFT) |
                                 PFIT_FILTER_FUZZY);
 
-       /* Make sure pre-965 set dither correctly for 18bpp panels. */
-       if (INTEL_INFO(dev)->gen < 4 && pipe_config->pipe_bpp == 18)
-               pfit_control |= PANEL_8TO6_DITHER_ENABLE;
-
 out:
        if ((pfit_control & PFIT_ENABLE) == 0) {
                pfit_control = 0;
                pfit_pgm_ratios = 0;
        }
 
+       /* Make sure pre-965 set dither correctly for 18bpp panels. */
+       if (INTEL_INFO(dev)->gen < 4 && pipe_config->pipe_bpp == 18)
+               pfit_control |= PANEL_8TO6_DITHER_ENABLE;
+
        pipe_config->gmch_pfit.control = pfit_control;
        pipe_config->gmch_pfit.pgm_ratios = pfit_pgm_ratios;
        pipe_config->gmch_pfit.lvds_border_bits = border;
@@ -1118,8 +1118,12 @@ int intel_panel_setup_backlight(struct drm_connector *connector)
        int ret;
 
        if (!dev_priv->vbt.backlight.present) {
-               DRM_DEBUG_KMS("native backlight control not available per VBT\n");
-               return 0;
+               if (dev_priv->quirks & QUIRK_BACKLIGHT_PRESENT) {
+                       DRM_DEBUG_KMS("no backlight present per VBT, but present per quirk\n");
+               } else {
+                       DRM_DEBUG_KMS("no backlight present per VBT\n");
+                       return 0;
+               }
        }
 
        /* set level and max in panel struct */