drm/amdgpu: Avoid querying DRM MGCG status

MP0 v13.0.6 SOCs don't support DRM MGCG.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index edd6344d1e2b0fe0ee528836cc5ce044c52644a2..51342809af03478f5a1767c7eed98007110ca01b 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -1429,7 +1429,8 @@ static void soc15_common_get_clockgating_state(void *handle, u64 *flags)
        if (adev->hdp.funcs && adev->hdp.funcs->get_clock_gating_state)
                adev->hdp.funcs->get_clock_gating_state(adev, flags);
 
-       if (amdgpu_ip_version(adev, MP0_HWIP, 0) != IP_VERSION(13, 0, 2)) {
+       if ((amdgpu_ip_version(adev, MP0_HWIP, 0) != IP_VERSION(13, 0, 2)) &&
+           (amdgpu_ip_version(adev, MP0_HWIP, 0) != IP_VERSION(13, 0, 6))) {
                /* AMD_CG_SUPPORT_DRM_MGCG */
                data = RREG32(SOC15_REG_OFFSET(MP0, 0, mmMP0_MISC_CGTT_CTRL0));
                if (!(data & 0x01000000))