linux-kernel - Re: [PATCH v5 2/2] arm64: dts: qcom: sc7280: Add DT for sc7280-herobrine-zombie

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Date:   Mon, 28 Nov 2022 16:55:10 +0000
From:   Matthias Kaehlcke <mka@...gle.com>
To:     Owen Yang <ecs.taipeikernel@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Abner Yen <abner.yen@....corp-partner.google.com>,
        Gavin Lee <gavin.lee@....corp-partner.google.com>,
        Harvey <hunge@...gle.com>, Stephen Boyd <swboyd@...omium.org>,
        Bob Moragues <moragues@...gle.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v5 2/2] arm64: dts: qcom: sc7280: Add DT for
 sc7280-herobrine-zombie

Hi Owen,

On Fri, Nov 25, 2022 at 05:44:25PM +0800, Owen Yang wrote:
> Add DT for sc7280-herobrine-zombie
> 
> Signed-off-by: Owen Yang <ecs.taipeikernel@...il.com>

> Changes in v5:
> - Overwrite pm8350c_pwm_backlight setting in sc7280-herobrine-zombie.dtsi for chrome zombie. v5.
> - Dropping the redundant 'DT binding for' as requested by Krzysztof. v4.
> - Adding an empty line here before "/dts-v1/;" in "sc7280-herobrine-zombie-lte.dts", "sc7280-herobrine-zombie.dts" as requested by Matthias. v4.
> - Deleteing "/dts-v1/;" in "sc7280-herobrine-zombie.dtsi" as requested by Matthias. v4.
> - Droping changing file path in description. v3. as requested by Matthias. v3.
> - Changing Patch order, binding patch first and dt file second, as requested by Douglas. v2.
> - Adding "arm64: dts: qcom: sc7280:" in dt patch ${SUBJECT}, as requested by Douglas. v2.
> - Adding "dt-bindings: arm: qcom:" in bind patch ${SUBJECT}, as requested by Douglas. v2.
> - Adding '#include "sc7280-herobrine-wifi-sku.dtsi"' in sc7280-herobrine-zombie.dts, as requested by Douglas. v2.
> - Adding "(newest rev)" for zombie entry description in qcom.yaml, as requested by Douglas. v2.
> - Adding "post-power-on-delay-ms = <100>;" for trackpad in "sc7280-herobrine-zombie.dtsi". v2
> - Changing "vcc-supply" to "vdd-supply" for trackpad in "sc7280-herobrine-zombie.dtsi", as requested by Douglas. v2.

For future patches please better organize the change log like this:

Changes in v5:
- Overwrite pm8350c_pwm_backlight setting in sc7280-herobrine-zombie.dtsi for chrome zombie

Changes in v4:
- Dropping the redundant 'DT binding for' as requested by Krzysztof
- Adding an empty line here before "/dts-v1/;" in "sc7280-herobrine-zombie-lte.dts", "sc7280-herobrine-zombie.dts" as requested by Matthias
- Deleteing "/dts-v1/;" in "sc7280-herobrine-zombie.dtsi" as requested by Matthias

...

If you are using patman you can keep the existing 'Commit-changes: vN' entries
from the previous versions and just add a new entry for the current version.

No need to re-spin the patches just for change log.

> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine-zombie.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine-zombie.dtsi
> new file mode 100644
> index 000000000000..d10362ecdafb
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine-zombie.dtsi
>
> ...
>
> +&pm8350c_pwm_backlight{
> +	pwms = <&pm8350c_pwm 3 200000>;
> +};

Why is this change needed?