drm/i915/rkl: Setup ports/phys

RKL uses DDI's A, B, TC1, and TC2 which need to map to combo PHY's A-D.

Bspec: 49181
Cc: Imre Deak <[e-mail]>
Cc: Aditya Swarup <[e-mail]>
Cc: Lucas De Marchi <[e-mail]>
Signed-off-by: Matt Roper <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]
Reviewed-by: Ville Syrjälä <[e-mail]>

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

···
 {
 	if (phy == PHY_NONE)
 		return false;
-
-	if (IS_ELKHARTLAKE(dev_priv))
+	else if (IS_ROCKETLAKE(dev_priv))
+		return phy <= PHY_D;
+	else if (IS_ELKHARTLAKE(dev_priv))
 		return phy <= PHY_C;
-
-	if (INTEL_GEN(dev_priv) >= 11)
+	else if (INTEL_GEN(dev_priv) >= 11)
 		return phy <= PHY_B;
-
-	return false;
+	else
+		return false;
 }
 
 bool intel_phy_is_tc(struct drm_i915_private *dev_priv, enum phy phy)
 {
-	if (INTEL_GEN(dev_priv) >= 12)
+	if (IS_ROCKETLAKE(dev_priv))
+		return false;
+	else if (INTEL_GEN(dev_priv) >= 12)
 		return phy >= PHY_D && phy <= PHY_I;
-
-	if (INTEL_GEN(dev_priv) >= 11 && !IS_ELKHARTLAKE(dev_priv))
+	else if (INTEL_GEN(dev_priv) >= 11 && !IS_ELKHARTLAKE(dev_priv))
 		return phy >= PHY_C && phy <= PHY_F;
-
-	return false;
+	else
+		return false;
 }
 
 enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port)
 {
-	if (IS_ELKHARTLAKE(i915) && port == PORT_D)
+	if (IS_ROCKETLAKE(i915) && port >= PORT_D)
+		return (enum phy)port - 1;
+	else if (IS_ELKHARTLAKE(i915) && port == PORT_D)
 		return PHY_A;
 
 	return (enum phy)port;
···
 	if (!HAS_DISPLAY(dev_priv) || !INTEL_DISPLAY_ENABLED(dev_priv))
 		return;
 
-	if (INTEL_GEN(dev_priv) >= 12) {
+	if (IS_ROCKETLAKE(dev_priv)) {
+		intel_ddi_init(dev_priv, PORT_A);
+		intel_ddi_init(dev_priv, PORT_B);
+		intel_ddi_init(dev_priv, PORT_D);	/* DDI TC1 */
+		intel_ddi_init(dev_priv, PORT_E);	/* DDI TC2 */
+	} else if (INTEL_GEN(dev_priv) >= 12) {
 		intel_ddi_init(dev_priv, PORT_A);
 		intel_ddi_init(dev_priv, PORT_B);
 		intel_ddi_init(dev_priv, PORT_D);

drivers/gpu/drm/i915/i915_reg.h

···
 #define _ICL_COMBOPHY_A			0x162000
 #define _ICL_COMBOPHY_B			0x6C000
 #define _EHL_COMBOPHY_C			0x160000
+#define _RKL_COMBOPHY_D			0x161000
 #define _ICL_COMBOPHY(phy)		_PICK(phy, _ICL_COMBOPHY_A, \
 					      _ICL_COMBOPHY_B, \
-					      _EHL_COMBOPHY_C)
+					      _EHL_COMBOPHY_C, \
+					      _RKL_COMBOPHY_D)
 
 /* CNL/ICL Port CL_DW registers */
 #define _ICL_PORT_CL_DW(dw, phy)	(_ICL_COMBOPHY(phy) + \