drm/i915/tgl: Add additional PHYs for Tiger Lake

Tiger Lake has up to 3 combo phys and 6 TC phys. Extend the helper
conversion functions from port to phy.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190711173115.28296-14-lucas.demarchi@intel.com

drivers/gpu/drm/i915/display/intel_display.c

@@ -6676,7 +6676,7 @@ bool intel_phy_is_combo(struct drm_i915_private *dev_priv, enum phy phy)
 	if (phy == PHY_NONE)
 		return false;
 
-	if (IS_ELKHARTLAKE(dev_priv))
+	if (IS_ELKHARTLAKE(dev_priv) || INTEL_GEN(dev_priv) >= 12)
 		return phy <= PHY_C;
 
 	if (INTEL_GEN(dev_priv) >= 11)
@@ -6687,6 +6687,9 @@ bool intel_phy_is_combo(struct drm_i915_private *dev_priv, enum phy phy)
 
 bool intel_phy_is_tc(struct drm_i915_private *dev_priv, enum phy phy)
 {
+	if (INTEL_GEN(dev_priv) >= 12)
+		return phy >= PHY_D && phy <= PHY_I;
+
 	if (INTEL_GEN(dev_priv) >= 11 && !IS_ELKHARTLAKE(dev_priv))
 		return phy >= PHY_C && phy <= PHY_F;
 

drivers/gpu/drm/i915/display/intel_display.h

@@ -249,6 +249,9 @@ enum phy {
 	PHY_D,
 	PHY_E,
 	PHY_F,
+	PHY_G,
+	PHY_H,
+	PHY_I,
 
 	I915_MAX_PHYS
 };