[Intel-gfx] [PATCH 2/2] drm/i915: Apply correct ddi translation table for AML device

[Lee, Shawn C]

Amber Lake used the same gen graphics as Kaby Lake. Kernel driver
should configure KBL's DDI buffer setting for AML ULX as well.

So far, driver would load DDI translation table that used for
KBL H/S platform and apply it on AML devices. But AML is belong to
ULX series. This change will lead driver to apply KBL-Y's DDI table
for AML devices to avoid unexpected eDP/DP signal quality issue.

Cc: Jani Nikula <jani.nikula at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Cc: Jose Roberto de Souza <jose.souza at intel.com>
Signed-off-by: Lee, Shawn C <shawn.c.lee at intel.com>
---
 drivers/gpu/drm/i915/intel_ddi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index b6910c8b4e08..b051970912a3 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -642,7 +642,7 @@ skl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries)
 static const struct ddi_buf_trans *
 kbl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries)
 {
-	if (IS_KBL_ULX(dev_priv)) {
+	if (IS_KBL_ULX(dev_priv) || IS_AML_ULX(dev_priv)) {
 		*n_entries = ARRAY_SIZE(kbl_y_ddi_translations_dp);
 		return kbl_y_ddi_translations_dp;
 	} else if (IS_KBL_ULT(dev_priv) || IS_CFL_ULT(dev_priv)) {
@@ -658,7 +658,7 @@ static const struct ddi_buf_trans *
 skl_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries)
 {
 	if (dev_priv->vbt.edp.low_vswing) {
-		if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv)) {
+		if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv) || IS_AML_ULX(dev_priv)) {
 			*n_entries = ARRAY_SIZE(skl_y_ddi_translations_edp);
 			return skl_y_ddi_translations_edp;
 		} else if (IS_SKL_ULT(dev_priv) || IS_KBL_ULT(dev_priv) ||
@@ -680,7 +680,7 @@ skl_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries)
 static const struct ddi_buf_trans *
 skl_get_buf_trans_hdmi(struct drm_i915_private *dev_priv, int *n_entries)
 {
-	if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv)) {
+	if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv) || IS_AML_ULX(dev_priv)) {
 		*n_entries = ARRAY_SIZE(skl_y_ddi_translations_hdmi);
 		return skl_y_ddi_translations_hdmi;
 	} else {
-- 
2.7.4