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Date:   Fri, 20 Nov 2020 08:35:11 +0000
From:   Lukasz Luba <lukasz.luba@....com>
To:     Sudeep Holla <sudeep.holla@....com>
Cc:     Rob Herring <robh@...nel.org>,
        Hector Yuan <hector.yuan@...iatek.com>,
        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
Subject: Re: [PATCH v8 2/3] dt-bindings: arm: cpus: Document
 'mediatek,freq-domain' property



On 11/19/20 5:13 PM, Sudeep Holla wrote:
> On Thu, Nov 19, 2020 at 03:23:20PM +0000, Lukasz Luba wrote:
>>
>>
>> On 10/28/20 3:08 PM, Rob Herring wrote:
>>> 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.
>>
>> Would it be accurate to create a new binding file:
>> Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.txt
>> ?
>>
> 
> Nope, Rob already asked to unify all such bindings and generalise it.
> Here is my attempt[1] and this must just use it or help to enhance that
> in order to make use of that binding.
> 

That's great. Thank you for the information.

Regards,
Lukasz

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