linux-kernel - Re: [PATCH v1 2/6] dt-bindings: arm: cpus: Document 'mtk,freq-domain' property

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Message-ID: <1603692776.20535.3.camel@mtkswgap22>
Date:   Mon, 26 Oct 2020 14:12:56 +0800
From:   Hector Yuan <hector.yuan@...iatek.com>
To:     Rob Herring <robh@...nel.org>
CC:     <linux-mediatek@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
        "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>, Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH v1 2/6] dt-bindings: arm: cpus: Document
 'mtk,freq-domain' property

On Fri, 2020-10-23 at 11:20 -0500, Rob Herring wrote:
> +Sudeep
> 
> On Fri, Oct 23, 2020 at 04:24:49PM +0800, Hector Yuan wrote:
> > From: "Hector.Yuan" <hector.yuan@...iatek.com>
> > 
> > Add devicetree documentation for 'mtk,freq-domain' property specific
> > to Mediatek CPUs. This property is used to reference the CPUFREQ node
> > along with the domain id.
> 
> Okay, now we've got the same thing being done for Mediatek, QCom, and 
> SCMI. This needs to be a common binding.
> 
OK, thank you. I will pay attention for this. But still
"mediatek,freq-domain" in v8.

> > 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..06a6f5b 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.
> >  
> > +  mtk-freq-domain:
> 
> I expect this to change, but still not right form: <vendor>,<prop name>
> 
> mtk is not the registered vendor.
> 
OK, will modify this in v8.(use the previous pacthset and merge all
changes)

> > +    $ref: '/schemas/types.yaml#/definitions/phandle-array'
> > +    description:
> > +      CPUs supporting freq-domain must set their "mtk-freq-domain" property
> > +      with phandle to a cpufreq_hw node followed by the domain id.
> > +
> >    power-domains:
> >      $ref: '/schemas/types.yaml#/definitions/phandle-array'
> >      description:
> > -- 
> > 1.7.9.5