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[1/2] dt-bindings: ufs: qcom: allow 'dma-coherent' property

Message ID 20221205100837.29212-2-johan+linaro@kernel.org
State Superseded
Headers show
Series arm64: dts: qcom: sc8280xp: fix UFS DMA coherency | expand

Commit Message

Johan Hovold Dec. 5, 2022, 10:08 a.m. UTC 
UFS controllers may be cache coherent and must be marked as such in the
devicetree to avoid data corruption.

This is specifically needed on recent Qualcomm platforms like SC8280XP.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 Documentation/devicetree/bindings/ufs/qcom,ufs.yaml | 2 ++
 1 file changed, 2 insertions(+)

Comments

Rob Herring (Arm) Dec. 5, 2022, 10:35 p.m. UTC | #1 
On Mon, 05 Dec 2022 11:08:36 +0100, Johan Hovold wrote:
> UFS controllers may be cache coherent and must be marked as such in the
> devicetree to avoid data corruption.
> 
> This is specifically needed on recent Qualcomm platforms like SC8280XP.
> 
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
>  Documentation/devicetree/bindings/ufs/qcom,ufs.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
index f2d6298d926c..1f1d286749c0 100644
--- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
@@ -44,6 +44,8 @@  properties:
     minItems: 8
     maxItems: 11
 
+  dma-coherent: true
+
   interconnects:
     minItems: 2
     maxItems: 2