drm/amdgpu: fix uvd can't initialized when dpm disabled on Ci.

need to start smc when dpm disabled.
otherwise, uvd can't get response from smu.
so uvd ring test and ib test will timeout.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -2210,7 +2210,6 @@ static void ci_clear_vc(struct amdgpu_device *adev)
 
 static int ci_upload_firmware(struct amdgpu_device *adev)
 {
-	struct ci_power_info *pi = ci_get_pi(adev);
 	int i, ret;
 
 	if (amdgpu_ci_is_smc_running(adev)) {
@@ -2227,7 +2226,7 @@ static int ci_upload_firmware(struct amdgpu_device *adev)
 	amdgpu_ci_stop_smc_clock(adev);
 	amdgpu_ci_reset_smc(adev);
 
-	ret = amdgpu_ci_load_smc_ucode(adev, pi->sram_end);
+	ret = amdgpu_ci_load_smc_ucode(adev, SMC_RAM_END);
 
 	return ret;
 
@@ -6278,13 +6277,13 @@ static int ci_dpm_sw_init(void *handle)
 	adev->pm.current_mclk = adev->clock.default_mclk;
 	adev->pm.int_thermal_type = THERMAL_TYPE_NONE;
 
-	if (amdgpu_dpm == 0)
-		return 0;
-
 	ret = ci_dpm_init_microcode(adev);
 	if (ret)
 		return ret;
 
+	if (amdgpu_dpm == 0)
+		return 0;
+
 	INIT_WORK(&adev->pm.dpm.thermal.work, amdgpu_dpm_thermal_work_handler);
 	mutex_lock(&adev->pm.mutex);
 	ret = ci_dpm_init(adev);
@@ -6328,8 +6327,15 @@ static int ci_dpm_hw_init(void *handle)
 
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	if (!amdgpu_dpm)
+	if (!amdgpu_dpm) {
+		ret = ci_upload_firmware(adev);
+		if (ret) {
+			DRM_ERROR("ci_upload_firmware failed\n");
+			return ret;
+		}
+		ci_dpm_start_smc(adev);
 		return 0;
+	}
 
 	mutex_lock(&adev->pm.mutex);
 	ci_dpm_setup_asic(adev);
@@ -6351,6 +6357,8 @@ static int ci_dpm_hw_fini(void *handle)
 		mutex_lock(&adev->pm.mutex);
 		ci_dpm_disable(adev);
 		mutex_unlock(&adev->pm.mutex);
+	} else {
+		ci_dpm_stop_smc(adev);
 	}
 
 	return 0;