1 files changed, 10 insertions, 9 deletions

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 7cc447191028..5c7a62a96ae7 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -97,14 +97,13 @@ 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;
         struct bdb_lvds_lfp_data_entry *entry;
         struct lvds_dvo_timing *dvo_timing;
         struct drm_display_mode *panel_fixed_mode;
-        int lfp_data_size;
+        int lfp_data_size, dvo_timing_offset;
 
         /* Defaults if we can't find VBT info */
         dev_priv->lvds_dither = 0;
@@ -133,14 +132,16 @@ 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_offset = lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset -
+                lvds_lfp_data_ptrs->ptr[0].fp_timing_offset;
 
-        /* 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;
+        /*
+         * the size of fp_timing varies on the different platform.
+         * So calculate the DVO timing relative offset in LVDS data
+         * entry to get the DVO timing entry
+         */
+        dvo_timing = (struct lvds_dvo_timing *)
+                        ((unsigned char *)entry + dvo_timing_offset);
 
         panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL);