linux-kernel - Re: [PATCH] arm64: dts: hi3660: improve pmu description

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Message-ID: <CAL_JsqKFMSvRCB48X4eiPpi5nAL4WGGVGh8GRJpp_JMNdALjbw@mail.gmail.com>
Date:   Wed, 8 Nov 2017 09:55:18 -0600
From:   Rob Herring <robh+dt@...nel.org>
To:     Xu YiPing <xuyiping@...ilicon.com>
Cc:     Wei Xu <xuwei5@...ilicon.com>, Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] arm64: dts: hi3660: improve pmu description

On Wed, Nov 8, 2017 at 2:59 AM, Xu YiPing <xuyiping@...ilicon.com> wrote:
> cortex a73 pmu is supported, use it instead of armpmu-v3

The subject is misleading and you need a better commit message. Why is
this change needed? You are going from 1 to 2 devices.

Missing your S-o-B, too.

> ---
>  arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 22 +++++++++++++---------
>  1 file changed, 13 insertions(+), 9 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> index 13ae69f..f638897 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> @@ -203,21 +203,25 @@
>                                          IRQ_TYPE_LEVEL_HIGH)>;
>         };
>
> -       pmu {
> -               compatible = "arm,armv8-pmuv3";
> +       pmu_a53 {

Don't use '_' in node names. Building with W=2 will tell you this.

> +               compatible = "arm,cortex-a53-pmu";
>                 interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
>                              <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
>                              <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
> -                            <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
> -                            <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
> -                            <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
> -                            <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
> -                            <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
> +                            <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
>                 interrupt-affinity = <&cpu0>,
>                                      <&cpu1>,
>                                      <&cpu2>,
> -                                    <&cpu3>,
> -                                    <&cpu4>,
> +                                    <&cpu3>;
> +       };
> +
> +       pmu_a73 {
> +               compatible = "arm,cortex-a73-pmu";
> +               interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
> +                            <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
> +                            <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
> +                            <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
> +               interrupt-affinity = <&cpu4>,
>                                      <&cpu5>,
>                                      <&cpu6>,
>                                      <&cpu7>;
> --
> 2.7.4
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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