drm/i915: Nuke PCH_MCC

MCC is derived from TGP, and we have no real need to
differentiate between the two. Thus remove PCH_MCC and
just declare it to be PCH_TGP compatible.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220630150600.24611-3-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

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

@@ -4179,7 +4179,7 @@ static enum hpd_pin ehl_hpd_pin(struct drm_i915_private *dev_priv,
 	if (port == PORT_D)
 		return HPD_PORT_A;
 
-	if (HAS_PCH_MCC(dev_priv))
+	if (HAS_PCH_TGP(dev_priv))
 		return icl_hpd_pin(dev_priv, port);
 
 	return HPD_PORT_A + port - PORT_A;

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

@@ -2851,7 +2851,7 @@ static u8 intel_hdmi_ddc_pin(struct intel_encoder *encoder)
 		ddc_pin = rkl_port_to_ddc_pin(dev_priv, port);
 	else if (DISPLAY_VER(dev_priv) == 9 && HAS_PCH_TGP(dev_priv))
 		ddc_pin = gen9bc_tgp_port_to_ddc_pin(dev_priv, port);
-	else if (HAS_PCH_MCC(dev_priv))
+	else if (IS_JSL_EHL(dev_priv) && HAS_PCH_TGP(dev_priv))
 		ddc_pin = mcc_port_to_ddc_pin(dev_priv, port);
 	else if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
 		ddc_pin = icl_port_to_ddc_pin(dev_priv, port);

drivers/gpu/drm/i915/intel_pch.c

@@ -116,7 +116,8 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id)
 	case INTEL_PCH_MCC_DEVICE_ID_TYPE:
 		drm_dbg_kms(&dev_priv->drm, "Found Mule Creek Canyon PCH\n");
 		drm_WARN_ON(&dev_priv->drm, !IS_JSL_EHL(dev_priv));
-		return PCH_MCC;
+		/* MCC is TGP compatible */
+		return PCH_TGP;
 	case INTEL_PCH_TGP_DEVICE_ID_TYPE:
 	case INTEL_PCH_TGP2_DEVICE_ID_TYPE:
 		drm_dbg_kms(&dev_priv->drm, "Found Tiger Lake LP PCH\n");

drivers/gpu/drm/i915/intel_pch.h

@@ -24,8 +24,7 @@ enum intel_pch {
 	PCH_CNP,        /* Cannon/Comet Lake PCH */
 	PCH_ICP,	/* Ice Lake PCH */
 	PCH_JSP,	/* Jasper Lake PCH */
-	PCH_MCC,        /* Mule Creek Canyon PCH */
-	PCH_TGP,	/* Tiger Lake PCH */
+	PCH_TGP,	/* Tiger Lake/Mule Creek Canyon PCH */
 	PCH_ADP,	/* Alder Lake PCH */
 
 	/* Fake PCHs, functionality handled on the same PCI dev */
@@ -69,7 +68,6 @@ enum intel_pch {
 #define HAS_PCH_ADP(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_ADP)
 #define HAS_PCH_DG1(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_DG1)
 #define HAS_PCH_JSP(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_JSP)
-#define HAS_PCH_MCC(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_MCC)
 #define HAS_PCH_TGP(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_TGP)
 #define HAS_PCH_ICP(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_ICP)
 #define HAS_PCH_CNP(dev_priv)			(INTEL_PCH_TYPE(dev_priv) == PCH_CNP)