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Message-ID: <CAMpxmJV1-+7B_8PE+MX+a7vFRzjJ6Uukhw09E5YL1y+k6ozq6w@mail.gmail.com>
Date:   Mon, 4 Jan 2021 12:20:01 +0100
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Prabhakar <prabhakar.csengg@...il.com>
Subject: Re: [PATCH] gpio: rcar: Remove redundant compatible values

On Mon, Jan 4, 2021 at 11:36 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Thu, Dec 31, 2020 at 4:31 PM Lad Prabhakar
> <prabhakar.mahadev-lad.rj@...renesas.com> wrote:
> > The mandatory compatible values 'renesas,rcar-gen{1,2,3}-gpio' have been
> > already added to all the respective R-Car Gen{1,2,3} SoC DTSI files,
> > remove the redundant device specific values from the driver.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
>
> Thanks for your patch!
>
> > --- a/drivers/gpio/gpio-rcar.c
> > +++ b/drivers/gpio/gpio-rcar.c
> > @@ -392,33 +392,6 @@ static const struct gpio_rcar_info gpio_rcar_info_gen2 = {
> >
> >  static const struct of_device_id gpio_rcar_of_table[] = {
> >         {
> > -               .compatible = "renesas,gpio-r8a7743",
> > -               /* RZ/G1 GPIO is identical to R-Car Gen2. */
> > -               .data = &gpio_rcar_info_gen2,
> > -       }, {
> > -               .compatible = "renesas,gpio-r8a7790",
> > -               .data = &gpio_rcar_info_gen2,
> > -       }, {
> > -               .compatible = "renesas,gpio-r8a7791",
> > -               .data = &gpio_rcar_info_gen2,
> > -       }, {
> > -               .compatible = "renesas,gpio-r8a7792",
> > -               .data = &gpio_rcar_info_gen2,
> > -       }, {
> > -               .compatible = "renesas,gpio-r8a7793",
> > -               .data = &gpio_rcar_info_gen2,
> > -       }, {
> > -               .compatible = "renesas,gpio-r8a7794",
> > -               .data = &gpio_rcar_info_gen2,
> > -       }, {
> > -               .compatible = "renesas,gpio-r8a7795",
> > -               /* Gen3 GPIO is identical to Gen2. */
> > -               .data = &gpio_rcar_info_gen2,
> > -       }, {
> > -               .compatible = "renesas,gpio-r8a7796",
> > -               /* Gen3 GPIO is identical to Gen2. */
> > -               .data = &gpio_rcar_info_gen2,
> > -       }, {
> >                 .compatible = "renesas,rcar-gen1-gpio",
> >                 .data = &gpio_rcar_info_gen1,
> >         }, {
>
> The reason the driver matches on these SoC-specific compatible values is
> that originally the family-specific compatible values did not exist, and
> the device nodes in the initial DTS files thus did not use them.  The
> family-specific compatible values were added to the DTS files in v4.15.
> However, as this was backported to all v4.14-based R-Car BSP releases
> (3.6.0 and later), I think it is safe to apply this.
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
>
> 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

Patch applied, thanks!

Bartosz

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