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drm/rockchip: Check iommu itself instead of it's parent for device_is_available
authorAndy Yan <andy.yan@rock-chips.com>
Sun, 27 Jun 2021 08:47:37 +0000 (16:47 +0800)
committerHeiko Stuebner <heiko@sntech.de>
Tue, 21 Sep 2021 09:50:26 +0000 (11:50 +0200)
commite1202c7a65b10258f9a11c1d2613c2aa91fe11cd
treefb1163a07f264fc319249234f4197ccae059df1f
parentadfeef9370ff8b53c5f73cda3a63531d92b1ca64
drm/rockchip: Check iommu itself instead of it's parent for device_is_available

When iommu itself is disabled in dts, we should
fallback to non-iommu buffer, check iommu parent
is meanless here.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210627084737.309163-1-andy.yan@rock-chips.com
drivers/gpu/drm/rockchip/rockchip_drm_drv.c