drm/amdgpu: add gmc cg support for dimgrey_cavefish

The athub version for dimgrey_cavefish is v2.1.
Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c

@@ -1107,8 +1107,8 @@ static int gmc_v10_0_set_clockgating_state(void *handle,
 	if (r)
 		return r;
 
-	if (adev->asic_type == CHIP_SIENNA_CICHLID ||
-	    adev->asic_type == CHIP_NAVY_FLOUNDER)
+	if (adev->asic_type >= CHIP_SIENNA_CICHLID &&
+	    adev->asic_type <= CHIP_DIMGREY_CAVEFISH)
 		return athub_v2_1_set_clockgating(adev, state);
 	else
 		return athub_v2_0_set_clockgating(adev, state);
@@ -1120,8 +1120,8 @@ static void gmc_v10_0_get_clockgating_state(void *handle, u32 *flags)
 
 	adev->mmhub.funcs->get_clockgating(adev, flags);
 
-	if (adev->asic_type == CHIP_SIENNA_CICHLID ||
-	    adev->asic_type == CHIP_NAVY_FLOUNDER)
+	if (adev->asic_type >= CHIP_SIENNA_CICHLID &&
+	    adev->asic_type <= CHIP_DIMGREY_CAVEFISH)
 		athub_v2_1_get_clockgating(adev, flags);
 	else
 		athub_v2_0_get_clockgating(adev, flags);

drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c

@@ -639,6 +639,7 @@ static int mmhub_v2_0_set_clockgating(struct amdgpu_device *adev,
 	case CHIP_NAVI12:
 	case CHIP_SIENNA_CICHLID:
 	case CHIP_NAVY_FLOUNDER:
+	case CHIP_DIMGREY_CAVEFISH:
 		mmhub_v2_0_update_medium_grain_clock_gating(adev,
 				state == AMD_CG_STATE_GATE);
 		mmhub_v2_0_update_medium_grain_light_sleep(adev,