linux-kernel - Re: [PATCH 4/6] riscv: microchip: mpfs: fix board compatible

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Date:   Tue, 24 Aug 2021 17:29:19 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Atish Patra <atish.patra@....com>,
        Yash Shah <yash.shah@...ive.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Piotr Sroka <piotrs@...ence.com>,
        Linux MMC List <linux-mmc@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH 4/6] riscv: microchip: mpfs: fix board compatible

Hi Krzysztof,

On Thu, Aug 19, 2021 at 5:45 PM Krzysztof Kozlowski
<krzysztof.kozlowski@...onical.com> wrote:
> According to bindings, the compatible must include microchip,mpfs.  This
> fixes dtbs_check warning:
>
>   arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dt.yaml: /: compatible: ['microchip,mpfs-icicle-kit'] is too short
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>

Thanks for your patch!

> --- a/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
> +++ b/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
> @@ -10,7 +10,7 @@
>
>  / {
>         model = "Microchip PolarFire-SoC Icicle Kit";
> -       compatible = "microchip,mpfs-icicle-kit";
> +       compatible = "microchip,mpfs-icicle-kit", "microchip,mpfs";

I have the same change in my local tree, but didn't get to submit it
yet, so this part is fine ;-)

>
>         chosen {
>                 stdout-path = &serial0;
> diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
> index b9819570a7d1..cb54da0cc3c4 100644
> --- a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
> +++ b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
> @@ -7,7 +7,7 @@ / {
>         #address-cells = <2>;
>         #size-cells = <2>;
>         model = "Microchip MPFS Icicle Kit";
> -       compatible = "microchip,mpfs-icicle-kit";
> +       compatible = "microchip,mpfs-icicle-kit", "microchip,mpfs";

As this file is the SoC .dtsi, not the board DTS for the full
Icicle Kit, the compatible value should be just "microchip,mpfs"
(to be augmented by the board DTS).
And "model" should be "Microchip PolarFire SoC".

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds