drm/amd/pp: Enable pp_set_power_profile_mode under manual mode

Only user enter manual performance mode, driver allow user
configure the sclk/mclk dpm parameters through sysfs
pp_power_profile_mode.

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/powerplay/amd_powerplay.c

@@ -1088,6 +1088,7 @@ static int pp_set_power_profile_mode(void *handle, long *input, uint32_t size)
 {
 	struct pp_hwmgr *hwmgr;
 	struct pp_instance *pp_handle = (struct pp_instance *)handle;
+	int ret = -EINVAL;
 
 	if (pp_check(pp_handle))
 		return -EINVAL;
@@ -1098,8 +1099,11 @@ static int pp_set_power_profile_mode(void *handle, long *input, uint32_t size)
 		pr_info("%s was not implemented.\n", __func__);
 		return -EINVAL;
 	}
-
-	return hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, input, size);
+	mutex_lock(&pp_handle->pp_lock);
+	if (hwmgr->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL)
+		ret = hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, input, size);
+	mutex_unlock(&pp_handle->pp_lock);
+	return ret;
 }
 
 static int pp_odn_edit_dpm_table(void *handle, uint32_t type, long *input, uint32_t size)