| Message ID | 20191017092939.25899-1-s.nawrocki@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v6] dt-bindings: arm: samsung: Update the CHIPID binding for ASV | expand |
On Thu, 17 Oct 2019 11:29:39 +0200, Sylwester Nawrocki wrote: > This patch adds documentation of new optional "samsung,asv-bin" > property in the chipid device node and documents requirement of > "syscon" compatible string. These additions are needed to support > Exynos ASV (Adaptive Supply Voltage) feature. > > Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> > Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> > --- > Depends on patch ("8d0daa4c89c9 dt-bindings: arm: samsung: Convert > Exynos Chipid bindings to json-schema") already applied to Rob's > dt/next. > > Changes since v5: > - removed uneeded allOf from 'compatible' property section > > Changes since v4: > - converted to YAML > > Changes since v3: > - none > > Changes since v2: > - corrected patch summary line prefix, the patch moved in the > sequence > > Changes since v1 (RFC): > - new patch > --- > .../bindings/arm/samsung/exynos-chipid.yaml | 26 ++++++++++++++++++- > 1 file changed, 25 insertions(+), 1 deletion(-) > Applied, thanks. I dropped 'select' because I fixed the tooling to ignore 'syscon'. Rob
diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml index 9c573ad7dc7d..c7f06aa1963c 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml @@ -9,17 +9,41 @@ title: Samsung Exynos SoC series Chipid driver maintainers: - Krzysztof Kozlowski <krzk@kernel.org> +# Custom select to avoid matching all nodes with 'syscon' +select: + properties: + compatible: + contains: + const: samsung,exynos4210-chipid + required: + - compatible + properties: compatible: items: - const: samsung,exynos4210-chipid + - const: syscon reg: maxItems: 1 + samsung,asv-bin: + description: + Adaptive Supply Voltage bin selection. This can be used + to determine the ASV bin of an SoC if respective information + is missing in the CHIPID registers or in the OTP memory. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - enum: [ 0, 1, 2, 3 ] + +required: + - compatible + - reg + examples: - | chipid@10000000 { - compatible = "samsung,exynos4210-chipid"; + compatible = "samsung,exynos4210-chipid", "syscon"; reg = <0x10000000 0x100>; + samsung,asv-bin = <2>; };