drm/i915/adl_s: Add vbt port and aux channel settings for adls

- ADL-S driver internal mapping uses PORT D, E, F, G for Combo phy B, C,
  D and E.
- Add ADLS specific port mappings for vbt port dvo settings.
- Select appropriate AUX CH specific to ADLS based on port mapping.

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Aditya Swarup <aditya.swarup@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210125140753.347998-10-aditya.swarup@intel.com

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

@@ -1719,8 +1719,26 @@ static enum port dvo_port_to_port(struct drm_i915_private *dev_priv,
 		[PORT_TC1] = { DVO_PORT_HDMIC, DVO_PORT_DPC, -1 },
 		[PORT_TC2] = { DVO_PORT_HDMID, DVO_PORT_DPD, -1 },
 	};
+	/*
+	 * Alderlake S ports used in the driver are PORT_A, PORT_D, PORT_E,
+	 * PORT_F and PORT_G, we need to map that to correct VBT sections.
+	 */
+	static const int adls_port_mapping[][3] = {
+		[PORT_A] = { DVO_PORT_HDMIA, DVO_PORT_DPA, -1 },
+		[PORT_B] = { -1 },
+		[PORT_C] = { -1 },
+		[PORT_TC1] = { DVO_PORT_HDMIB, DVO_PORT_DPB, -1 },
+		[PORT_TC2] = { DVO_PORT_HDMIC, DVO_PORT_DPC, -1 },
+		[PORT_TC3] = { DVO_PORT_HDMID, DVO_PORT_DPD, -1 },
+		[PORT_TC4] = { DVO_PORT_HDMIE, DVO_PORT_DPE, -1 },
+	};
 
-	if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
+	if (IS_ALDERLAKE_S(dev_priv))
+		return __dvo_port_to_port(ARRAY_SIZE(adls_port_mapping),
+					  ARRAY_SIZE(adls_port_mapping[0]),
+					  adls_port_mapping,
+					  dvo_port);
+	else if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
 		return __dvo_port_to_port(ARRAY_SIZE(rkl_port_mapping),
 					  ARRAY_SIZE(rkl_port_mapping[0]),
 					  rkl_port_mapping,
@@ -2672,26 +2690,43 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *dev_priv,
 		return aux_ch;
 	}
 
+	/*
+	 * RKL/DG1 VBT uses PHY based mapping. Combo PHYs A,B,C,D
+	 * map to DDI A,B,TC1,TC2 respectively.
+	 *
+	 * ADL-S VBT uses PHY based mapping. Combo PHYs A,B,C,D,E
+	 * map to DDI A,TC1,TC2,TC3,TC4 respectively.
+	 */
 	switch (info->alternate_aux_channel) {
 	case DP_AUX_A:
 		aux_ch = AUX_CH_A;
 		break;
 	case DP_AUX_B:
+		if (IS_ALDERLAKE_S(dev_priv))
+			aux_ch = AUX_CH_USBC1;
+		else
 			aux_ch = AUX_CH_B;
 		break;
 	case DP_AUX_C:
-		/*
-		 * RKL/DG1 VBT uses PHY based mapping. Combo PHYs A,B,C,D
-		 * map to DDI A,B,TC1,TC2 respectively.
-		 */
-		aux_ch = (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) ?
-			AUX_CH_USBC1 : AUX_CH_C;
+		if (IS_ALDERLAKE_S(dev_priv))
+			aux_ch = AUX_CH_USBC2;
+		else if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
+			aux_ch = AUX_CH_USBC1;
+		else
+			aux_ch = AUX_CH_C;
 		break;
 	case DP_AUX_D:
-		aux_ch = (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) ?
-			AUX_CH_USBC2 : AUX_CH_D;
+		if (IS_ALDERLAKE_S(dev_priv))
+			aux_ch = AUX_CH_USBC3;
+		else if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
+			aux_ch = AUX_CH_USBC2;
+		else
+			aux_ch = AUX_CH_D;
 		break;
 	case DP_AUX_E:
+		if (IS_ALDERLAKE_S(dev_priv))
+			aux_ch = AUX_CH_USBC4;
+		else
 			aux_ch = AUX_CH_E;
 		break;
 	case DP_AUX_F: