drm/amdgpu: add new flag AMD_PG_SUPPORT_MMHUB

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

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
index c885c0d9344b..9804318f3488 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
@@ -426,7 +426,7 @@ void mmhub_v1_0_update_power_gating(struct amdgpu_device *adev,
         pctl0_reng_execute = RREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_EXECUTE);
         pctl1_reng_execute = RREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_EXECUTE);
 
-        if (enable) {
+        if (enable && adev->pg_flags & AMD_PG_SUPPORT_MMHUB) {
                 pctl0_reng_execute = REG_SET_FIELD(pctl0_reng_execute,
                                                 PCTL0_RENG_EXECUTE,
                                                 RENG_EXECUTE_ON_PWR_UP, 1);