drm/amd/pp: Remove the cgs wrapper for notify smu version on APU

Refine commit f49e9bac ("drm/amd/pp: Get and save Rv smu version")
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c

@@ -654,11 +654,6 @@ static int amdgpu_cgs_get_firmware_info(struct cgs_device *cgs_device,
 				else
 					strcpy(fw_name, "amdgpu/vega10_smc.bin");
 				break;
-			case CHIP_CARRIZO:
-			case CHIP_STONEY:
-			case CHIP_RAVEN:
-				adev->pm.fw_version = info->version;
-				return 0;
 			default:
 				DRM_ERROR("SMC firmware not supported\n");
 				return -EINVAL;

drivers/gpu/drm/amd/powerplay/smumgr/smu10_smumgr.c

@@ -247,13 +247,11 @@ static int smu10_smu_fini(struct pp_hwmgr *hwmgr)
 
 static int smu10_start_smu(struct pp_hwmgr *hwmgr)
 {
-	struct cgs_firmware_info info = {0};
+	struct amdgpu_device *adev = hwmgr->adev;
 
 	smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetSmuVersion);
 	hwmgr->smu_version = smu10_read_arg_from_smc(hwmgr);
-	info.version = hwmgr->smu_version >> 8;
-
-	cgs_get_firmware_info(hwmgr->device, CGS_UCODE_ID_SMU, &info);
+	adev->pm.fw_version = hwmgr->smu_version >> 8;
 
 	if (smu10_verify_smc_interface(hwmgr))
 		return -EINVAL;

drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c

@@ -698,7 +698,8 @@ static int smu8_start_smu(struct pp_hwmgr *hwmgr)
 {
 	int ret = 0;
 	uint32_t fw_to_check = 0;
-	struct cgs_firmware_info info = {0};
+	struct amdgpu_device *adev = hwmgr->adev;
+
 	uint32_t index = SMN_MP1_SRAM_START_ADDR +
 			 SMU8_FIRMWARE_HEADER_LOCATION +
 			 offsetof(struct SMU8_Firmware_Header, Version);
@@ -709,8 +710,7 @@ static int smu8_start_smu(struct pp_hwmgr *hwmgr)
 
 	cgs_write_register(hwmgr->device, mmMP0PUB_IND_INDEX, index);
 	hwmgr->smu_version = cgs_read_register(hwmgr->device, mmMP0PUB_IND_DATA);
-	info.version = hwmgr->smu_version >> 8;
-	cgs_get_firmware_info(hwmgr->device, CGS_UCODE_ID_SMU, &info);
+	adev->pm.fw_version = hwmgr->smu_version >> 8;
 
 	fw_to_check = UCODE_ID_RLC_G_MASK |
 			UCODE_ID_SDMA0_MASK |