3 files changed, 61 insertions, 20 deletions

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e4ffcd3a7aef..6d49a9f5c2b1 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -339,16 +339,16 @@ typedef struct drm_i915_private {
         unsigned int int_crt_support:1;
         unsigned int lvds_use_ssc:1;
         int lvds_ssc_freq;
-
         struct {
-                u8 rate:4;
-                u8 lanes:4;
-                u8 preemphasis:4;
-                u8 vswing:4;
-
-                u8 initialized:1;
-                u8 support:1;
-                u8 bpp:6;
+                int rate;
+                int lanes;
+                int preemphasis;
+                int vswing;
+
+                bool initialized;
+                bool support;
+                int bpp;
+                struct edp_power_seq pps;
         } edp;
 
         struct notifier_block lid_notifier;
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index b1f73ac0f3fd..cc15447eff41 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -24,6 +24,7 @@
  *    Eric Anholt <eric@anholt.net>
  *
  */
+#include <drm/drm_dp_helper.h>
 #include "drmP.h"
 #include "drm.h"
 #include "i915_drm.h"
@@ -413,6 +414,8 @@ static void
 parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
 {
         struct bdb_edp *edp;
+        struct edp_power_seq *edp_pps;
+        struct edp_link_params *edp_link_params;
 
         edp = find_section(bdb, BDB_EDP);
         if (!edp) {
@@ -437,19 +440,54 @@ parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
                 break;
         }
 
-        dev_priv->edp.rate = edp->link_params[panel_type].rate;
-        dev_priv->edp.lanes = edp->link_params[panel_type].lanes;
-        dev_priv->edp.preemphasis = edp->link_params[panel_type].preemphasis;
-        dev_priv->edp.vswing = edp->link_params[panel_type].vswing;
+        /* Get the eDP sequencing and link info */
+        edp_pps = &edp->power_seqs[panel_type];
+        edp_link_params = &edp->link_params[panel_type];
 
-        DRM_DEBUG_KMS("eDP vBIOS settings: bpp=%d, rate=%d, lanes=%d, preemphasis=%d, vswing=%d\n",
-                      dev_priv->edp.bpp,
-                      dev_priv->edp.rate,
-                      dev_priv->edp.lanes,
-                      dev_priv->edp.preemphasis,
-                      dev_priv->edp.vswing);
+        dev_priv->edp.pps = *edp_pps;
 
-        dev_priv->edp.initialized = true;
+        dev_priv->edp.rate = edp_link_params->rate ? DP_LINK_BW_2_7 :
+                DP_LINK_BW_1_62;
+        switch (edp_link_params->lanes) {
+        case 0:
+                dev_priv->edp.lanes = 1;
+                break;
+        case 1:
+                dev_priv->edp.lanes = 2;
+                break;
+        case 3:
+        default:
+                dev_priv->edp.lanes = 4;
+                break;
+        }
+        switch (edp_link_params->preemphasis) {
+        case 0:
+                dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_0;
+                break;
+        case 1:
+                dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_3_5;
+                break;
+        case 2:
+                dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_6;
+                break;
+        case 3:
+                dev_priv->edp.preemphasis = DP_TRAIN_PRE_EMPHASIS_9_5;
+                break;
+        }
+        switch (edp_link_params->vswing) {
+        case 0:
+                dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_400;
+                break;
+        case 1:
+                dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_600;
+                break;
+        case 2:
+                dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_800;
+                break;
+        case 3:
+                dev_priv->edp.vswing = DP_TRAIN_VOLTAGE_SWING_1200;
+                break;
+        }
 }
 
 static void
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index a49e791db0b0..83a389e44543 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -23,6 +23,9 @@
 #ifndef _DRM_DP_HELPER_H_
 #define _DRM_DP_HELPER_H_
 
+#include <linux/types.h>
+#include <linux/i2c.h>
+
 /* From the VESA DisplayPort spec */
 
 #define AUX_NATIVE_WRITE        0x8