On Sun, 27 Jun 2021 16:47:37 +0800, Andy Yan wrote: > When iommu itself is disabled in dts, we should > fallback to non-iommu buffer, check iommu parent > is meanless here. Applied, thanks! [1/1] drm/rockchip: Check iommu itself instead of it's parent for device_is_available commit: e1202c7a65b10258f9a11c1d2613c2aa91fe11cd Best regards, -- Heiko Stuebner <heiko@xxxxxxxxx>