linux-kernel - Re: [PATCH] arm64: dts: allwinner: h6: fix cooling-cell property

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Date:   Thu, 23 Apr 2020 09:48:07 +0200
From:   Clément Péron <peron.clem@...il.com>
To:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [PATCH] arm64: dts: allwinner: h6: fix cooling-cell property

Hi Maxime,

On Mon, 20 Apr 2020 at 16:30, Clément Péron <peron.clem@...il.com> wrote:
>
> We define cooling-cells property for CPUs only for board including
> the sun50i-h6-cpu-opp.dtsi. As not all boards have the CPU OPP
> dtsi file included this create a warning because the cooling-maps
> is defined but not the cooling-cells property in CPU nodes.

This fix some warnings introduced by the H6 DVFS serie that I sent last week...

The cooling-cells has been introduced in
7e4bbf3fe67c ("arm64: dts: allwinner: h6: Add CPU Operating
Performance Points table")

instead of
5fc0928782e9 ("arm64: dts: allwinner: h6: Add thermal trip points/cooling map")

Do you plan to squash it? If yes do you want me to sent two patches
separately (it will be a bit easier to squash them)?

Regards,
Clement

>
> Move the cooling-cells to the sun50i-h6.dtsi instead of the
> sun50i-h6-cpu-opp.dtsi
>
> Signed-off-by: Clément Péron <peron.clem@...il.com>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi | 4 ----
>  arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi         | 4 ++++
>  2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
> index 9ebd97b04b1a..dcb789519797 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
> @@ -102,20 +102,16 @@
>
>  &cpu0 {
>         operating-points-v2 = <&cpu_opp_table>;
> -       #cooling-cells = <2>;
>  };
>
>  &cpu1 {
>         operating-points-v2 = <&cpu_opp_table>;
> -       #cooling-cells = <2>;
>  };
>
>  &cpu2 {
>         operating-points-v2 = <&cpu_opp_table>;
> -       #cooling-cells = <2>;
>  };
>
>  &cpu3 {
>         operating-points-v2 = <&cpu_opp_table>;
> -       #cooling-cells = <2>;
>  };
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> index 83e32f9c4977..2e31632c6ca8 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> @@ -27,6 +27,7 @@
>                         enable-method = "psci";
>                         clocks = <&ccu CLK_CPUX>;
>                         clock-latency-ns = <244144>; /* 8 32k periods */
> +                       #cooling-cells = <2>;
>                 };
>
>                 cpu1: cpu@1 {
> @@ -36,6 +37,7 @@
>                         enable-method = "psci";
>                         clocks = <&ccu CLK_CPUX>;
>                         clock-latency-ns = <244144>; /* 8 32k periods */
> +                       #cooling-cells = <2>;
>                 };
>
>                 cpu2: cpu@2 {
> @@ -45,6 +47,7 @@
>                         enable-method = "psci";
>                         clocks = <&ccu CLK_CPUX>;
>                         clock-latency-ns = <244144>; /* 8 32k periods */
> +                       #cooling-cells = <2>;
>                 };
>
>                 cpu3: cpu@3 {
> @@ -54,6 +57,7 @@
>                         enable-method = "psci";
>                         clocks = <&ccu CLK_CPUX>;
>                         clock-latency-ns = <244144>; /* 8 32k periods */
> +                       #cooling-cells = <2>;
>                 };
>         };
>
> --
> 2.20.1
>