linux-kernel - Re: [PATCH 4/5] arm64: dts: renesas: Add I2C support for falcon board

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Date:   Tue, 5 Jan 2021 12:00:00 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc:     Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Koji Matsuoka <koji.matsuoka.xm@...esas.com>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/5] arm64: dts: renesas: Add I2C support for falcon board

Hi Wolfram,

On Wed, Dec 23, 2020 at 6:25 PM Wolfram Sang
<wsa+renesas@...g-engineering.com> wrote:
> From: Koji Matsuoka <koji.matsuoka.xm@...esas.com>
>
> Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@...esas.com>
> [wsa: rebased]
> Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>

Thanks for your patch!

> --- a/arch/arm64/boot/dts/renesas/r8a779a0-falcon.dts
> +++ b/arch/arm64/boot/dts/renesas/r8a779a0-falcon.dts
> @@ -21,6 +21,34 @@ chosen {
>         };
>  };
>
> +&i2c0 {
> +       pinctrl-0 = <&i2c0_pins>;
> +       pinctrl-names = "default";
> +
> +       status = "okay";
> +       clock-frequency = <400000>;
> +};
> +
> +&i2c1 {
> +       pinctrl-0 = <&i2c1_pins>;
> +       pinctrl-names = "default";
> +
> +       status = "okay";
> +       clock-frequency = <400000>;
> +};
> +
> +&pfc {
> +       i2c0_pins: i2c0 {
> +               groups = "i2c0";
> +               function = "i2c0";
> +       };
> +
> +       i2c1_pins: i2c1 {
> +               groups = "i2c1";
> +               function = "i2c1";
> +       };
> +};
> +

BTW, why not adding i2c6, which also has slave devices connected to it?

>  &rwdt {
>         timeout-sec = <60>;
>         status = "okay";


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