linux-kernel - Re: [PATCH v8 2/3] dt-bindings: arm: cpus: Document 'mediatek,freq-domain' property

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Message-ID: <20201028150858.GA4029348@bogus>
Date:   Wed, 28 Oct 2020 10:08:58 -0500
From:   Rob Herring <robh@...nel.org>
To:     Hector Yuan <hector.yuan@...iatek.com>
Cc:     linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-pm@...r.kernel.org,
        Sudeep Holla <sudeep.holla@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Maxime Ripard <mripard@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Amit Kucheria <amit.kucheria@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Dave Gerlach <d-gerlach@...com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Robin Murphy <robin.murphy@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        wsd_upstream@...iatek.com
Subject: Re: [PATCH v8 2/3] dt-bindings: arm: cpus: Document
 'mediatek,freq-domain' property

On Mon, Oct 26, 2020 at 04:19:08PM +0800, Hector Yuan wrote:
> From: "Hector.Yuan" <hector.yuan@...iatek.com>
> 
> Add devicetree documentation for 'mediatek,freq-domain' property specific
> to Mediatek CPUs. This property is used to reference the CPUFREQ node
> along with the domain id.
> 
> Signed-off-by: Hector.Yuan <hector.yuan@...iatek.com>
> ---
>  Documentation/devicetree/bindings/arm/cpus.yaml |    6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
> index 1222bf1..e995b26 100644
> --- a/Documentation/devicetree/bindings/arm/cpus.yaml
> +++ b/Documentation/devicetree/bindings/arm/cpus.yaml
> @@ -255,6 +255,12 @@ properties:
>  
>        where voltage is in V, frequency is in MHz.
>  
> +  mediatek,freq-domain:
> +    $ref: '/schemas/types.yaml#/definitions/phandle-array'
> +    description:
> +      CPUs supporting freq-domain must set their "mediatek,freq-domain" property
> +      with phandle to a cpufreq_hw node followed by the domain id.

This needs to be a common binding shared with SCMI domains.

> +
>    power-domains:
>      $ref: '/schemas/types.yaml#/definitions/phandle-array'
>      description:
> -- 
> 1.7.9.5