[PATCH v4 13/16] dt-bindings: ufs: exynos-ufs: add io-coherency property
From: Chanho Park <hidden>
Date: 2021-10-07 08:12:21
Also in:
linux-devicetree, linux-samsung-soc
Subsystem:
open firmware and flattened device tree bindings, the rest, universal flash storage host controller driver · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add "samsung,sysreg" regmap and the offset to the ufs shareaibility register for setting io coherency of the samsung ufs. "dma-coherent" property is also required because the driver code needs to know. Cc: Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org Signed-off-by: Chanho Park <redacted> --- .../devicetree/bindings/ufs/samsung,exynos-ufs.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml b/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml
index b9ca8ef4f2be..d9b7535b872f 100644
--- a/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml@@ -54,6 +54,17 @@ properties: phy-names: const: ufs-phy + samsung,sysreg: + $ref: '/schemas/types.yaml#/definitions/phandle' + description: phandle for FSYSx sysreg interface, used to control + sysreg register bit for UFS IO Coherency + + samsung,ufs-shareability-reg-offset: + $ref: '/schemas/types.yaml#/definitions/uint32' + description: Offset to the shareability register for io-coherency + + dma-coherent: true + required: - compatible - reg
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2.33.0