MediaTek IOMMU has already added the device_link between the consumer
and smi-larb device. If the drm device call the pm_runtime_get_sync,
the smi-larb's pm_runtime_get_sync also be called automatically.
CC: CK Hu <ck.hu@xxxxxxxxxxxx>
CC: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Signed-off-by: Yong Wu <yong.wu@xxxxxxxxxxxx>
Reviewed-by: Evan Green <evgreen@xxxxxxxxxxxx>
Acked-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
Reviewed-by: Dafna Hirschfeld <dafna.hirschfeld@xxxxxxxxxxxxx>
Tested-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx> # BPI-R2/MT7623