On Fri, Dec 19, 2025 at 12:39:01PM +0200, Abel Vesa wrote:
> This reverts commit 5978864e34b66bdae4d7613834c03dd5d0a0c891.
>
> At least on Hamoa based devices, there are IOMMU faults:
>
> arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0x00000000,
> fsynr=0x3d0023, cbfrsynra=0x1c00, cb=13
> arm-smmu 15000000.iommu: FSR = 00000402 [Format=2 TF], SID=0x1c00
> arm-smmu 15000000.iommu: FSYNR0 = 003d0023 [S1CBNDX=61 PNU PLVL=3]
>
> While on some of these devices, there are also all sorts of artifacts on eDP.
>
> Reverting this fixes these issues.
>
> Closes:
> https://lore.kernel.org/r/z75wnahrp7lrl5yhfdysr3np3qrs6xti2i4otkng4ex3blfgrx@xyiucge3xykb/
> Signed-off-by: Abel Vesa <[email protected]>
Fixes: 5978864e34b6 ("drm/msm/dpu: support plane splitting in quad-pipe case")
Reviewed-by: Dmitry Baryshkov <[email protected]>
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 11 ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 2 -
> drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 137
> +++++++++---------------------
> 3 files changed, 40 insertions(+), 110 deletions(-)
>
--
With best wishes
Dmitry
