arm64: dts: exynos: gs101: ufs: add dma-coherent property

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commit 4292564c71 upstream.

ufs-exynos driver configures the sysreg shareability as
cacheable for gs101 so we need to set the dma-coherent
property so the descriptors are also allocated cacheable.

This fixes the UFS stability issues we have seen with
the upstream UFS driver on gs101.

Fixes: 4c65d7054b ("arm64: dts: exynos: gs101: Add ufs and ufs-phy dt nodes")
Cc: stable@vger.kernel.org
Suggested-by: Will McVicker <willmcvicker@google.com>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Tested-by: Will McVicker <willmcvicker@google.com>
Tested-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250314-ufs-dma-coherent-v1-1-bdf9f9be2919@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Peter Griffin 2025-03-14 15:38:02 +00:00 • committed by Greg Kroah-Hartman

parent 1e20a92593

commit bc254ce9b4

1 changed files with 1 additions and 0 deletions

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arch/arm64/boot/dts/exynos/google/gs101.dtsi

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