diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index d595ca30a7e1..e72dd9a8d6bf 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -205,19 +205,29 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv, struct drm_display_mode *panel_fixed_mode; int panel_type; int drrs_mode; + int ret; lvds_options = find_section(bdb, BDB_LVDS_OPTIONS); if (!lvds_options) return; dev_priv->vbt.lvds_dither = lvds_options->pixel_dither; - if (lvds_options->panel_type > 0xf) { - DRM_DEBUG_KMS("Invalid VBT panel type 0x%x\n", - lvds_options->panel_type); - return; + + ret = intel_opregion_get_panel_type(dev_priv->dev); + if (ret >= 0) { + WARN_ON(ret > 0xf); + panel_type = ret; + DRM_DEBUG_KMS("Panel type: %d (OpRegion)\n", panel_type); + } else { + if (lvds_options->panel_type > 0xf) { + DRM_DEBUG_KMS("Invalid VBT panel type 0x%x\n", + lvds_options->panel_type); + return; + } + panel_type = lvds_options->panel_type; + DRM_DEBUG_KMS("Panel type: %d (VBT)\n", panel_type); } - panel_type = lvds_options->panel_type; dev_priv->vbt.panel_type = panel_type; drrs_mode = (lvds_options->dps_panel_type_bits |