On Tue, 13 Aug 2019 at 17:09, Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> wrote:
>
> This patch adds documentation of a 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.
>
> Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
> ---
> Changes since v2:
> - none
>
> Changes since v1 (RFC):
> - new patch
> ---
> .../devicetree/bindings/arm/samsung/exynos-chipid.txt | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt
> index 85c5dfd4a720..be3657e6c00c 100644
> --- a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt
> +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt
> @@ -1,12 +1,18 @@
> -SAMSUNG Exynos SoCs Chipid driver.
> +SAMSUNG Exynos SoC series CHIPID subsystem
>
> Required properties:
> -- compatible : Should at least contain "samsung,exynos4210-chipid".
> +- compatible : Should at least contain "samsung,exynos4210-chipid", "syscon".
>
> - reg: offset and length of the register set
>
> +Optional properties:
> + - samsung,asv-bin : 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. Possible values: 0...3.
> +
> Example:
> chipid@10000000 {
> compatible = "samsung,exynos4210-chipid";
Please update the example with new required compatible.
Best regards,
Krzysztof
> reg = <0x10000000 0x100>;
> + samsung,asv-bin = <2>;
> };
> --
> 2.17.1
>
