drm/i915: Add eDP support on IGDNG mobile chip

[karo-tx-linux.git] / drivers / gpu / drm / i915 / intel_bios.c

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 5c7a62a96ae7a1ccba6e86e0d6511b4e7fe81cfd..300aee3296c2435545702030d6e66405759e5963 100644 (file)
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -296,6 +296,25 @@ parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
        }
        return;
 }
+
+static void
+parse_driver_features(struct drm_i915_private *dev_priv,
+                      struct bdb_header *bdb)
+{
+       struct drm_device *dev = dev_priv->dev;
+       struct bdb_driver_features *driver;
+
+       /* set default for chips without eDP */
+       if (!SUPPORTS_EDP(dev)) {
+               dev_priv->edp_support = 0;
+               return;
+       }
+
+       driver = find_section(bdb, BDB_DRIVER_FEATURES);
+       if (driver && driver->lvds_config == BDB_DRIVER_FEATURE_EDP)
+               dev_priv->edp_support = 1;
+}
+
 /**
  * intel_init_bios - initialize VBIOS settings & find VBT
  * @dev: DRM device
@@ -346,6 +365,8 @@ intel_init_bios(struct drm_device *dev)
        parse_lfp_panel_data(dev_priv, bdb);
        parse_sdvo_panel_data(dev_priv, bdb);
        parse_sdvo_device_mapping(dev_priv, bdb);
+       parse_driver_features(dev_priv, bdb);
+
        pci_unmap_rom(pdev, bios);
 
        return 0;