drm/amd/powerplay: add new bit mask to ctrl clock stretch feature.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c

@@ -1428,7 +1428,7 @@ static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
 		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
 				PHM_PlatformCaps_ControlVDDCI);
 
-	if ((hwmgr->pp_table_version != PP_TABLE_V0)
+	if ((hwmgr->pp_table_version != PP_TABLE_V0) && (hwmgr->feature_mask & PP_CLOCK_STRETCH_MASK)
 		&& (table_info->cac_dtp_table->usClockStretchAmount != 0))
 		phm_cap_set(hwmgr->platform_descriptor.platformCaps,
 					PHM_PlatformCaps_ClockStretcher);

drivers/gpu/drm/amd/powerplay/inc/hwmgr.h

@@ -85,7 +85,8 @@ enum PP_FEATURE_MASK {
 	PP_SMC_VOLTAGE_CONTROL_MASK = 0x40,
 	PP_VBI_TIME_SUPPORT_MASK = 0x80,
 	PP_ULV_MASK = 0x100,
-	PP_ENABLE_GFX_CG_THRU_SMU = 0x200
+	PP_ENABLE_GFX_CG_THRU_SMU = 0x200,
+	PP_CLOCK_STRETCH_MASK = 0x400,
 };
 
 enum PHM_BackEnd_Magic {