[Intel-gfx] [PATCH 1/2] drm/i915: Update VBT fields for child devices

[Shubhangi Shrivastava]

This patch adds new fields that are not yet added in drm code
in child devices struct

Signed-off-by: Sivakumar Thulasimani <sivakumar.thulasimani at intel.com>
Signed-off-by: Durgadoss R <durgadoss.r at intel.com>
Signed-off-by: Shubhangi Shrivastava <shubhangi.shrivastava at intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_bios.c     | 15 ++++++++++++++-
 drivers/gpu/drm/i915/intel_vbt_defs.h | 16 +++++++++++-----
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 083003b..e2f636c 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1126,7 +1126,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
 	}
 
 	/* Parse the I_boost config for SKL and above */
-	if (bdb->version >= 196 && (child->common.flags_1 & IBOOST_ENABLE)) {
+	if (bdb->version >= 196 && child->common.iboost) {
 		info->dp_boost_level = translate_iboost(child->common.iboost_level & 0xF);
 		DRM_DEBUG_KMS("VBT (e)DP boost level for port %c: %d\n",
 			      port_name(port), info->dp_boost_level);
@@ -1244,6 +1244,19 @@ parse_device_mapping(struct drm_i915_private *dev_priv,
 		 */
 		memcpy(child_dev_ptr, p_child,
 		       min_t(size_t, p_defs->child_dev_size, sizeof(*p_child)));
+
+		/*
+		 * copied full block, now init values when they are not
+		 * available in current version
+		 */
+		if (bdb->version < 196) {
+			/* Set default values for bits added from v196 */
+			child_dev_ptr->common.iboost = 0;
+			child_dev_ptr->common.hpd_invert = 0;
+		}
+
+		if (bdb->version < 192)
+			child_dev_ptr->common.lspcon = 0;
 	}
 	return;
 }
diff --git a/drivers/gpu/drm/i915/intel_vbt_defs.h b/drivers/gpu/drm/i915/intel_vbt_defs.h
index 749dcea..2da7be8 100644
--- a/drivers/gpu/drm/i915/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/intel_vbt_defs.h
@@ -261,9 +261,6 @@ struct old_child_dev_config {
  * versions. Notice that the meaning of the contents contents may still change,
  * but at least the offsets are consistent. */
 
-/* Definitions for flags_1 */
-#define IBOOST_ENABLE (1<<3)
-
 struct common_child_dev_config {
 	u16 handle;
 	u16 device_type;
@@ -272,8 +269,17 @@ struct common_child_dev_config {
 	u8 not_common2[2];
 	u8 ddc_pin;
 	u16 edid_ptr;
-	u8 obsolete;
-	u8 flags_1;
+	u8 dvo_cfg; /* See DEVICE_CFG_* above */
+	u8 efp_routed:1;
+	u8 lane_reversal:1;
+	u8 lspcon:1;
+	u8 iboost:1;
+	u8 hpd_invert:1;
+	u8 flag_reserved:3;
+	u8 hdmi_support:1;
+	u8 dp_support:1;
+	u8 tmds_support:1;
+	u8 support_reserved:5;
 	u8 not_common3[13];
 	u8 iboost_level;
 } __packed;
-- 
2.6.1