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dt-bindings: ufs: exynos-ufs: add io-coherency property

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Add "samsung,sysreg" regmap and the offset to the ufs shareability
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 <chanho61.park@samsung.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211018124216.153072-13-chanho61.park@samsung.com
This commit is contained in:
Chanho Park 2021-10-18 21:42:13 +09:00 committed by Rob Herring
parent a5690a521c
commit 57e9befa48
1 changed files with 8 additions and 0 deletions
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8
Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml
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@ -54,6 +54,14 @@ properties:
phy-names:
const: ufs-phy
samsung,sysreg:
$ref: '/schemas/types.yaml#/definitions/phandle-array'
description: Should be phandle/offset pair. The phandle to the syscon node
which indicates the FSYSx sysreg interface and the offset of
the control register for UFS io coherency setting.
dma-coherent: true
required:
- compatible
- reg