arm64: dts: qcom: sc7280: Fix up GPU SIDs

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[ Upstream commit 94085049fd ]

GPU_SMMU SID 1 is meant for Adreno LPAC (Low Priority Async Compute).
On platforms that support it (in firmware), it is necessary to
describe that link, or Adreno register access will hang the board.

The current settings are functionally identical, *but* due to what is
likely hardcoded security policies, the secure firmware rejects them,
resulting in the board hanging. To avoid that, alter the settings such
that SID 0 and 1 are described separately.

Fixes: 96c471970b ("arm64: dts: qcom: sc7280: Add gpu support")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230926-topic-a643-v2-2-06fa3d899c0a@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Konrad Dybcio 2023-11-20 13:12:53 +01:00 • committed by Greg Kroah-Hartman

parent 4b67b71b53

commit 27eaf6b783

1 changed files with 2 additions and 1 deletions

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arch/arm64/boot/dts/qcom/sc7280.dtsi

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