Fix some IGT tests fail at iommu fault in OVL cursor plane. Change in RESEND v4 : 1. Remove redundant plane_state assigning. Change in v4: 1. Change disable all layer method to update mtk_plane_state stored in mtk_crtc by drm_atomic_state from mtk_drm_crtc_atomic_enable(). Change in v3: 1. Add Fixes tag before s.o.b. Change in v2: 1. Add Fixes tag. Jason-JH.Lin (2): drm/mediatek: Fix iommu fault by swapping FBs after updating plane state drm/mediatek: Fix iommu fault during crtc enabling drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 14 ++++++++++---- drivers/gpu/drm/mediatek/mtk_drm_plane.c | 13 +++++++++---- drivers/gpu/drm/mediatek/mtk_drm_plane.h | 2 ++ 3 files changed, 21 insertions(+), 8 deletions(-) -- 2.18.0