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

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Date:   Mon, 29 Jul 2019 17:45:53 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Greg Ungerer <gerg@...nel.org>
Cc:     Guenter Roeck <linux@...ck-us.net>,
        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@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        LINUXWATCHDOG <linux-watchdog@...r.kernel.org>
Subject: Re: [PATCH 1/6] ARM: ks8695: watchdog: stop using mach/*.h

On Mon, Jul 29, 2019 at 2:53 PM Greg Ungerer <gerg@...nel.org> wrote:
> On 23/7/19 12:44 am, Arnd Bergmann wrote:
> > On Sat, May 4, 2019 at 4:27 PM Greg Ungerer <gerg@...nel.org> wrote:
> >> On 4/5/19 3:06 am, Guenter Roeck wrote:
> >>> On Fri, May 03, 2019 at 08:16:05AM +0100, Linus Walleij wrote:
> >>>> With IXP4xx, Gemini and EP93xx we have found active users and
> >>>> companies selling the chips and reference designs and even
> >>>> recommending it for new products (!) at times.  If this is not the
> >>>> case with KS8695 and no hobbyists are willing to submit it
> >>>> to OpenWrt and modernize it to use device tree I think it should be
> >>>> deleted from the kernel.
> >>>>
> >>>
> >>> That may be the best approach if indeed no one is using it,
> >>> much less maintaining it.
> >>
> >> Well, I for one don't really use it any more. So I don't have a lot
> >> of motivation to maintain it any longer.
> >
> > I came across my patches while rebasing my backlog to 5.3-rc1.
> >
> > Should I save the (very small) trouble of sending them out again
> > and just remove the platform then?
>
> At this time I have no issue with removing it.

Ok, let's do that then.

For reference, this is what I think we should do for the
remaining ARM9 based platforms that never gained multiplatform
support, as time permits:

netx: is now removed
ks8695: remove next
w90x900: probably remove, need to confirm with last known users
davinci: almost multiplatform now, should be done in 5.4
ep93xx: convert to common-clk, generic-irq, then enable multiplatform
 (linusw is on it)
omap1: convert to common-clk, change pcmcia driver to common
  I/O space method, use dma_pfn_offset for virt_to_bus, add ugly
  hacks for cpu_is_omap*() and omap_readl(), then enable multiplatform
  (arnd has started this)
lpc32xx: clean up header files so we can build last 6 drivers
  independently, then move to multiplatform, probably after 5.4
  I have patches for this somewhere.
s3c24xx: change 18 drivers that still use mach/* headers, get
  creative about mach-bast ISA I/O space

        Arnd