linux-kernel - Re: [PATCH 5/7] arm64: dts: msm8996: Add rpmpd device node

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Date:   Tue, 10 Apr 2018 09:49:37 +0530
From:   Rajendra Nayak <rnayak@...eaurora.org>
To:     Stephen Boyd <sboyd@...nel.org>, andy.gross@...aro.org,
        ulf.hansson@...aro.org, viresh.kumar@...aro.org
Cc:     devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/7] arm64: dts: msm8996: Add rpmpd device node



On 04/09/2018 09:33 PM, Stephen Boyd wrote:
> Quoting Rajendra Nayak (2018-03-15 21:08:22)
>> diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
>> index 0a6f7952bbb1..43757a078146 100644
>> --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
>> @@ -297,6 +297,52 @@
>>                                 #clock-cells = <1>;
>>                         };
>>  
>> +                       rpmpd: qcom,rpmpd {
> 
> power-controller? power-domain-controller? power-domains? Or something
> like that.
> 
>> +                               compatible = "qcom,rpmpd-msm8996";
>> +                               #power-domain-cells = <1>;
>> +                               operating-points-v2 = <&rpmpd_opp_table>, /* cx */
>> +                                                     <&rpmpd_opp_table>, /* cx_ao */
>> +                                                     <&rpmpd_opp_table>, /* cx_vfc */
>> +                                                     <&rpmpd_opp_table>, /* mx */
>> +                                                     <&rpmpd_opp_table>, /* mx_ao */
>> +                                                     <&rpmpd_opp_table>, /* sscx */
>> +                                                     <&rpmpd_opp_table>; /* sscx_vfc */
>> +                       };
>> +
>> +                       rpmpd_opp_table: opp-table {
> 
> This should go into the root of the tree? Otherwise it may be populated
> by the RPMh platform populate code which would be odd. We should go and
> update the platform populate code to always ignore operating-points-v2
> compatible nodes too.
> 
>> +                               compatible = "operating-points-v2", "operating-points-v2-qcom";
> 
> This is backwards? I thought more specific compatible went first.

thanks for the review, will fixup all of these when I respin.


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