linux-kernel - Re: [PATCH v3 2/3] platform: move the early platform device support to arch/sh

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Date:   Tue, 8 May 2018 08:45:01 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...nel.org>,
        David Lechner <david@...hnology.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Marc Zyngier <marc.zyngier@....com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Peter Rosin <peda@...ntia.se>, Jiri Slaby <jslaby@...e.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Magnus Damm <magnus.damm@...il.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>,
        Linux-sh list <linux-sh@...r.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH v3 2/3] platform: move the early platform device support
 to arch/sh

Hi Bartosz,

On Fri, May 4, 2018 at 3:27 PM, Bartosz Golaszewski <brgl@...ev.pl> wrote:
> From: Bartosz Golaszewski <bgolaszewski@...libre.com>
>
> SuperH is the only user of the current implementation of early platform
> device support. We want to introduce a more robust approach to early
> probing. As the first step - move all the current early platform code
> to arch/sh.
>
> In order not to export internal drivers/base functions to arch code for
> this temporary solution - copy the two needed routines for driver
> matching from drivers/base/platform.c to arch/sh/drivers/platform_early.c.
>
> Also: call early_platform_cleanup() from subsys_initcall() so that it's
> called after all early devices are probed.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>

>  drivers/clocksource/sh_cmt.c           |   7 +
>  drivers/clocksource/sh_mtu2.c          |   7 +
>  drivers/clocksource/sh_tmu.c           |   8 +
>  drivers/tty/serial/sh-sci.c            |   7 +-
>  include/linux/platform_device.h        |  64 +----

The parts used on contemporary ARM/ARM64 Renesas SoCs look fine to me, so
Acked-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