linux-kernel - Re: [PATCH v2 06/16] clk: starfive: Add JH7100 clock generator driver

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Date:   Wed, 27 Oct 2021 12:30:33 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Emil Renner Berthing <kernel@...il.dk>, devicetree@...r.kernel.org,
        linux-clk <linux-clk@...r.kernel.org>,
        linux-gpio@...r.kernel.org,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        linux-serial@...r.kernel.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Maximilian Luz <luzmaximilian@...il.com>,
        Sagar Kadam <sagar.kadam@...ive.com>,
        Drew Fustini <drew@...gleboard.org>,
        Michael Zhu <michael.zhu@...rfivetech.com>,
        Fu Wei <tekkamanninja@...il.com>,
        Anup Patel <anup.patel@....com>,
        Atish Patra <atish.patra@....com>,
        Matteo Croce <mcroce@...rosoft.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 06/16] clk: starfive: Add JH7100 clock generator driver

On Tue, Oct 26, 2021 at 05:54:03PM -0700, Stephen Boyd wrote:
> Quoting Emil Renner Berthing (2021-10-26 15:35:36)
> > On Tue, 26 Oct 2021 at 22:20, Stephen Boyd <sboyd@...nel.org> wrote:
> > > Quoting Emil Renner Berthing (2021-10-21 10:42:13)

...

> > > > +static int __init clk_starfive_jh7100_probe(struct platform_device *pdev)
> > >
> > > Drop __init as this can be called after kernel init is over.
> > 
> > Oh interesting, I'd like to know when that can happen. The comment for
> > the builtin_platform_driver macro says it's just a wrapper for
> 
> I thought this was using module_platform_driver() macro?
> 
> > device_initcall.
> > 
> > Won't we then need to remove all the __initconst tags too since the
> > probe function walks through jh7100_clk_data which eventually
> > references all __initconst data?
> 
> Yes. If it's builtin_platform_driver() it can't be a module/tristate
> Kconfig, in which case all the init markings can stay.

What about bind/unbind attribute?

-- 
With Best Regards,
Andy Shevchenko