linux-kernel - Re: [PATCH 1/6] ARM: ks8695: watchdog: stop using mach/*.h

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Date:   Mon, 15 Apr 2019 22:58:49 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Greg Ungerer <gerg@...inux.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        arm-soc <arm@...nel.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-watchdog@...r.kernel.org
Subject: Re: [PATCH 1/6] ARM: ks8695: watchdog: stop using mach/*.h

On Mon, Apr 15, 2019 at 10:54 PM Guenter Roeck <linux@...ck-us.net> wrote:
>
> >
> >  config KS8695_WATCHDOG
> >       tristate "KS8695 watchdog"
> > -     depends on ARCH_KS8695
> > +     depends on ARCH_KS8695 || COMPILE_TEST
>
> Is __raw_readl / __raw_writel really available for all architectures / platforms ?

I'm fairly sure it is these days, only uml and s390 used to be the
exceptions here, but they both added this.

It's possible that something else is missing, I was hoping for the 0-day
bot to tell me if so.

> > @@ -238,6 +237,11 @@ static struct miscdevice ks8695wdt_miscdev = {
> >  static int ks8695wdt_probe(struct platform_device *pdev)
> >  {
> >       int res;
> > +     struct resource *resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> > +
> > +     tmr_reg = devm_ioremap_resource(&pdev->dev, resource);
>
> Please use devm_platform_ioremap_resource().

Ah, that is the function I was looking for, thanks for the hint.

      Arnd