linux-kernel - Re: [PATCH 1/4] dt-bindings: interconnect: qcom,msm8998-bwmon: Add support for sc7280 BWMONs

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Date:   Fri, 2 Sep 2022 09:13:20 +0530
From:   Rajendra Nayak <quic_rjendra@...cinc.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...ainline.org>, <robh+dt@...nel.org>
CC:     <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        Nicolas Dechesne <nicolas.dechesne@...aro.org>,
        Abel Vesa <abel.vesa@....com>,
        srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Bhupesh Sharma <bhupesh.sharma@...aro.org>
Subject: Re: [PATCH 1/4] dt-bindings: interconnect: qcom,msm8998-bwmon: Add
 support for sc7280 BWMONs


On 9/1/2022 8:55 PM, Krzysztof Kozlowski wrote:
> On 01/09/2022 15:47, Rajendra Nayak wrote:
>> Add a compatible for the cpu BWMON (version 4) instance and one
>> for the llcc BWMON (version 5) found in sc7280 SoC.
> 
> +Cc of few Linaro folks.
> 
> Awesome! I see bwmon is being used! Rajendra, do you have any particular
> needs/todos for bwmon or other related pieces?

Thanks Krzysztof, nothing at the moment, things just worked out of the box
(except for the PATCH 3/4 that took a while to uncover)
We are still analyzing the perf/power numbers on sc7280 based ChromeOS devices,
along with some other yet to be posted changes to enable memory latency
based governors in firmware, but all is good with bwmon drivers for now.

> 
>>
>> Signed-off-by: Rajendra Nayak <quic_rjendra@...cinc.com>
>> ---
>>   .../devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml    | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml b/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
>> index 32e2892d736b..cac915c5c2aa 100644
>> --- a/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
>> +++ b/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
>> @@ -25,8 +25,10 @@ properties:
>>         - items:
>>             - enum:
>>                 - qcom,sdm845-bwmon
>> +              - qcom,sc7280-bwmon
> 
> Could you put it in alphabetical order, so before sdm845?

ah right, will fix and repost, thanks.
  
> With above:
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> Best regards,
> Krzysztof