linux-kernel - Re: [PATCH v2 1/3] dt-bindings: power: Introduce 'assigned-performance-states' property

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Message-ID: <79465de8-5704-0f58-c2e7-8fb6f6fc9b5d@codeaurora.org>
Date:   Thu, 27 May 2021 11:51:25 +0530
From:   Rajendra Nayak <rnayak@...eaurora.org>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     ulf.hansson@...aro.org, robh+dt@...nel.org,
        bjorn.andersson@...aro.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, swboyd@...omium.org,
        rojay@...eaurora.org
Subject: Re: [PATCH v2 1/3] dt-bindings: power: Introduce
 'assigned-performance-states' property



On 5/27/2021 11:46 AM, Viresh Kumar wrote:
> On 27-05-21, 11:42, Rajendra Nayak wrote:
>> While most devices within power-domains which support performance states,
>> scale the performance state dynamically, some devices might want to
>> set a static/default performance state while the device is active.
>> These devices typically would also run off a fixed clock and not support
>> dynamically scaling the device's performance, also known as DVFS techniques.
>> Add a property 'assigned-performance-states' which client devices can
>> use to set this default performance state on their power-domains.
>>
>> Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
>> ---
>>   .../devicetree/bindings/power/power-domain.yaml    | 50 ++++++++++++++++++++++
>>   1 file changed, 50 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/power/power-domain.yaml b/Documentation/devicetree/bindings/power/power-domain.yaml
>> index aed51e9..88cebf2 100644
>> --- a/Documentation/devicetree/bindings/power/power-domain.yaml
>> +++ b/Documentation/devicetree/bindings/power/power-domain.yaml
>> @@ -66,6 +66,19 @@ properties:
>>         by the given provider should be subdomains of the domain specified
>>         by this binding.
>>   
>> +  assigned-performance-states:
> 
> Why is this named assigned and not "default"? Just curious :)

I took the cue from assigned-clock-rates/assigned-clock-parents but i am perfectly
fine calling it default-performance-states as well :)

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