linux-kernel - Re: [PATCH v4 12/12] mfd: bd9571mwv: Add support for BD9574MWF

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Message-ID: <CAMuHMdU_6hWx21hTr2qguC5dKBJBKGxAiq24MN2vKOpUvghp=A@mail.gmail.com>
Date:   Tue, 22 Dec 2020 10:32:13 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Cc:     Marek Vasut <marek.vasut+renesas@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Khiem Nguyen <khiem.nguyen.xt@...esas.com>,
        linux-power <linux-power@...rohmeurope.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 12/12] mfd: bd9571mwv: Add support for BD9574MWF

Hi Shimoda-san,

On Tue, Dec 22, 2020 at 10:23 AM Yoshihiro Shimoda
<yoshihiro.shimoda.uh@...esas.com> wrote:
> > From: Geert Uytterhoeven, Sent: Tuesday, December 22, 2020 5:53 PM
> > On Mon, Dec 21, 2020 at 3:56 AM Yoshihiro Shimoda
> > <yoshihiro.shimoda.uh@...esas.com> wrote:
> <snip>
> > > --- a/drivers/mfd/bd9571mwv.c
> > > +++ b/drivers/mfd/bd9571mwv.c
> >
> > > @@ -200,12 +277,14 @@ static int bd9571mwv_probe(struct i2c_client *client,
> > >
> > >  static const struct of_device_id bd9571mwv_of_match_table[] = {
> > >         { .compatible = "rohm,bd9571mwv", },
> > > +       { .compatible = "rohm,bd9574mwf", },
> > >         { /* sentinel */ }
> > >  };
> > >  MODULE_DEVICE_TABLE(of, bd9571mwv_of_match_table);
> > >
> > >  static const struct i2c_device_id bd9571mwv_id_table[] = {
> > > -       { "bd9571mwv", 0 },
> > > +       { "bd9571mwv", ROHM_CHIP_TYPE_BD9571 },
> > > +       { "bd9574mwf", ROHM_CHIP_TYPE_BD9574 },
> >
> > Why add the chip types?  These are unused, and the driver uses
> > autodetection of the chip variant anyway.
>
> I just added the chip types in the future use. As you said,
> these are unused and we should not add a future use in general.
> So, I'll remove this change.

OK.

> Also, I think I should remove the following patch.
>
> [PATCH v4 08/12] gpio: bd9571mwv: Add BD9574MWF support

You mean removing the chip types from bd9571mwv_gpio_id_table[]?
You still need the "bd9574mwf-gpio" entry, don't you?

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