iommu/arm-smmu-qcom: Skip the TTBR1 quirk for db820c.

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db820c wants to use the qcom smmu path to get HUPCF set (which keeps
the GPU from wedging and then sometimes wedging the kernel after a
page fault), but it doesn't have separate pagetables support yet in
drm/msm so we can't go all the way to the TTBR1 path.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210326231303.3071950-1-eric@anholt.net
Signed-off-by: Will Deacon <will@kernel.org>

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Eric Anholt 2021-03-26 16:13:02 -07:00 • committed by Will Deacon

parent 6321484d1c

commit a242f4297c

1 changed files with 12 additions and 1 deletions

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drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c

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