linux-kernel - Re: [PATCH 1/4] of/device: Add a way to probe drivers by match data

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Message-ID: <CAMuHMdXTTCo6Fsr9eYstT6AFLOQ-_sKkhjw7cP8XdFabVqdJWw@mail.gmail.com>
Date:   Fri, 9 Nov 2018 20:18:33 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        linux-mediatek@...ts.infradead.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        ryder.lee@...iatek.com, Frank Rowand <frowand.list@...il.com>
Subject: Re: [PATCH 1/4] of/device: Add a way to probe drivers by match data

Hi Stephen,

On Fri, Nov 9, 2018 at 5:59 PM Stephen Boyd <sboyd@...nel.org> wrote:
> Quoting Geert Uytterhoeven (2018-11-09 01:56:01)
> > On Wed, Nov 7, 2018 at 7:37 PM Stephen Boyd <sboyd@...nel.org> wrote:
> > > Quoting Rob Herring (2018-11-06 12:44:52)
> > > > On Tue, Nov 6, 2018 at 12:36 PM Stephen Boyd <sboyd@...nel.org> wrote:
> > >         int (*probe)(struct platform_device *pdev);
> > >   };
> > >
> > >   struct of_platform_driver_probe_func mtk_probes[] = {
> > >         mtk_probe1,
> > >         mtk_probe2,
> > >         mtk_probe3,
> > >   };
> > >
> > >   struct platform_driver mtk_driver = {
> > >         .of_probes = &mtk_probes;
> > >         .driver = {
> > >                 .name = "mtk-foo";
> > >                 .of_match_table = mtk_match_table,
> > >         },
> > >   };
> >
> > This looks worse to me: people tend to be very good at keeping multiple
> > arrays in sync :-(
>
> To be _not_ very good? Agreed, and so specifying the probe function as
> another member in struct of_device_id seems to be the way to go.

Correct, sometimes sarcasm doesn't arrive well at the other end of the
electronic tunnel...

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