v1: The interrupts need to be enabled to move to DS clocks.
v2: Don't enable GFX IDLE interrupts if there are no GFX rings.
Signed-off-by: NLijo Lazar <lijo.lazar@amd.com>
Reviewed-by: NHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>