1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index da22863c05c0..7cc447191028 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -97,6 +97,7 @@ static void
 parse_lfp_panel_data(struct drm_i915_private *dev_priv,
                             struct bdb_header *bdb)
 {
+        struct drm_device *dev = dev_priv->dev;
         struct bdb_lvds_options *lvds_options;
         struct bdb_lvds_lfp_data *lvds_lfp_data;
         struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs;
@@ -132,7 +133,14 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv,
         entry = (struct bdb_lvds_lfp_data_entry *)
                 ((uint8_t *)lvds_lfp_data->data + (lfp_data_size *
                                                    lvds_options->panel_type));
-        dvo_timing = &entry->dvo_timing;
+
+        /* On IGDNG mobile, LVDS data block removes panel fitting registers.
+           So dec 2 dword from dvo_timing offset */
+        if (IS_IGDNG(dev))
+                dvo_timing = (struct lvds_dvo_timing *)
+                                        ((u8 *)&entry->dvo_timing - 8);
+        else
+                dvo_timing = &entry->dvo_timing;
 
         panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL);