drm/amdgpu/swsmu: add smu support for dimgrey_cavefish(v2)

Reuse sienna_cichlid pp table for dimgrey_cavefish.

v2: update related comment.
Signed-off-by: NTao Zhou <tao.zhou1@amd.com>
Reviewed-by: NHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/inc/smu_v11_0.h

@@ -33,6 +33,7 @@
 #define SMU11_DRIVER_IF_VERSION_Sienna_Cichlid 0x39
 #define SMU11_DRIVER_IF_VERSION_Navy_Flounder 0x5
 #define SMU11_DRIVER_IF_VERSION_VANGOGH 0x01
+#define SMU11_DRIVER_IF_VERSION_Dimgrey_Cavefish 0x1
 
 /* MP Apertures */
 #define MP0_Public			0x03800000

drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c

@@ -397,6 +397,7 @@ static int smu_set_funcs(struct amdgpu_device *adev)
 		break;
 	case CHIP_SIENNA_CICHLID:
 	case CHIP_NAVY_FLOUNDER:
+	case CHIP_DIMGREY_CAVEFISH:
 		sienna_cichlid_set_ppt_funcs(smu);
 		break;
 	case CHIP_RENOIR:

drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c

@@ -62,6 +62,7 @@ MODULE_FIRMWARE("amdgpu/navi14_smc.bin");
 MODULE_FIRMWARE("amdgpu/navi12_smc.bin");
 MODULE_FIRMWARE("amdgpu/sienna_cichlid_smc.bin");
 MODULE_FIRMWARE("amdgpu/navy_flounder_smc.bin");
+MODULE_FIRMWARE("amdgpu/dimgrey_cavefish_smc.bin");
 
 #define SMU11_VOLTAGE_SCALE 4
 
@@ -109,6 +110,9 @@ int smu_v11_0_init_microcode(struct smu_context *smu)
 	case CHIP_NAVY_FLOUNDER:
 		chip_name = "navy_flounder";
 		break;
+	case CHIP_DIMGREY_CAVEFISH:
+		chip_name = "dimgrey_cavefish";
+		break;
 	default:
 		dev_err(adev->dev, "Unsupported ASIC type %d\n", adev->asic_type);
 		return -EINVAL;
@@ -247,6 +251,9 @@ int smu_v11_0_check_fw_version(struct smu_context *smu)
 	case CHIP_VANGOGH:
 		smu->smc_driver_if_version = SMU11_DRIVER_IF_VERSION_VANGOGH;
 		break;
+	case CHIP_DIMGREY_CAVEFISH:
+		smu->smc_driver_if_version = SMU11_DRIVER_IF_VERSION_Dimgrey_Cavefish;
+		break;
 	default:
 		dev_err(smu->adev->dev, "smu unsupported asic type:%d.\n", smu->adev->asic_type);
 		smu->smc_driver_if_version = SMU11_DRIVER_IF_VERSION_INV;
@@ -330,7 +337,8 @@ int smu_v11_0_setup_pptable(struct smu_context *smu)
 		version_major = le16_to_cpu(hdr->header.header_version_major);
 		version_minor = le16_to_cpu(hdr->header.header_version_minor);
 		if ((version_major == 2 && smu->smu_table.boot_values.pp_table_id > 0) ||
-			adev->asic_type == CHIP_NAVY_FLOUNDER) {
+		    adev->asic_type == CHIP_NAVY_FLOUNDER ||
+		    adev->asic_type == CHIP_DIMGREY_CAVEFISH) {
 			dev_info(adev->dev, "use driver provided pptable %d\n", smu->smu_table.boot_values.pp_table_id);
 			switch (version_minor) {
 			case 0:
@@ -702,8 +710,11 @@ int smu_v11_0_init_display_count(struct smu_context *smu, uint32_t count)
 {
 	struct amdgpu_device *adev = smu->adev;
 
-	/* Navy_Flounder do not support to change display num currently */
-	if (adev->asic_type == CHIP_NAVY_FLOUNDER)
+	/* Navy_Flounder/Dimgrey_Cavefish do not support to change
+	 * display num currently
+	 */
+	if (adev->asic_type >= CHIP_NAVY_FLOUNDER &&
+	    adev->asic_type <= CHIP_DIMGREY_CAVEFISH)
 		return 0;
 
 	return smu_cmn_send_smc_msg_with_param(smu,