linux-kernel - Re: [PATCH 5/6] arm64: dts: allwinner: h616: Add CPU Operating Performance Points table

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Message-Id: <158H0S.OVEJGSQROBDV1@somainline.org>
Date:   Mon, 04 Sep 2023 21:43:49 +0200
From:   Martin Botka <martin.botka@...ainline.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Mark Rutland <mark.rutland@....com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Sudeep Holla <sudeep.holla@....com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Yangtao Li <tiny.windzz@...il.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-sunxi@...ts.linux.dev,
        devicetree@...r.kernel.org,
        Andre Przywara <andre.przywara@....com>,
        Alan Ma <tech@...u3d.com>,
        Luke Harrison <bttuniversity@...u3d.com>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rogerio Goncalves <rogerlz@...il.com>,
        Martin Botka <martin@...u3d.com>
Subject: Re: [PATCH 5/6] arm64: dts: allwinner: h616: Add CPU Operating
 Performance Points table



On Mon, Sep 4 2023 at 09:33:33 PM +02:00:00, Krzysztof Kozlowski 
<krzysztof.kozlowski@...aro.org> wrote:
> On 04/09/2023 17:57, Martin Botka wrote:
>>  Add an Operating Performance Points table for the CPU cores to
>>  enable Dynamic Voltage & Frequency Scaling on the H616.
>> 
> 
> ...
> 
>>  diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi 
>> b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
>>  index 063db9634e5f..78e79c591dba 100644
>>  --- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
>>  +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
>>  @@ -143,6 +143,10 @@ sid: efuse@...6000 {
>>   			ths_calibration: thermal-sensor-calibration@14 {
>>   				reg = <0x14 0x8>;
>>   			};
>>  +
>>  +			cpu_speed_grade: cpu_speed_grade@0 {
> 
> Underscores are no allowed in node names.
> 
> It does not look like you tested the DTS against bindings. Please run
> `make dtbs_check W=1` (see
> Documentation/devicetree/bindings/writing-schema.rst or
> https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
> for instructions).
I actually did. And did rerun it just now to check. No error or warning 
was reported by dtbs_check W=1 for this.
But I will correct it in V2 and look if my setup is doing something 
wrong that its not reporting these issues.
Cheers,
Martin
> 
> Best regards,
> Krzysztof
>