linux-kernel - Re: [PATCH 0/8] Utilize iomap interface for PC104 and friends

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Date:   Sat, 14 May 2022 14:57:49 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     William Breathitt Gray <william.gray@...aro.org>
Cc:     linux-iio <linux-iio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        schnelle@...ux.ibm.com, David Laight <David.Laight@...lab.com>,
        macro@...am.me.uk, Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>
Subject: Re: [PATCH 0/8] Utilize iomap interface for PC104 and friends

On Tue, May 10, 2022 at 7:31 PM William Breathitt Gray
<william.gray@...aro.org> wrote:
>
> PC104 cards and similar devices do not need to access I/O ports directly
> via inb()/outb() and can instead use the more typical I/O memory
> ioread8()/iowrite8() accessor calls by first calling ioport_map(). This
> patchset converts the relevant PC104/ISA card drivers to do such. With
> these drivers now utilizing I/O memory accessor calls, work can be done
> to consolidate some similar devices (e.g. 104-idio-16, pci-idio-16,
> etc.) into a unified driver in a future patchset.
>
> This patchset spawned from a suggestion made in another thread titled
> "gpio: add HAS_IOPORT dependencies":
> https://lore.kernel.org/all/c3a3cdd99d4645e2bbbe082808cbb2a5@AcuMS.aculab.com/
>
> William Breathitt Gray (8):
>   counter: 104-quad-8: Utilize iomap interface
>   gpio: 104-dio-48e: Utilize iomap interface
>   gpio: 104-idi-48: Utilize iomap interface
>   gpio: 104-idio-16: Utilize iomap interface
>   gpio: gpio-mm: Utilize iomap interface
>   gpio: ws16c48: Utilize iomap interface
>   iio: adc: stx104: Utilize iomap interface
>   iio: dac: cio-dac: Utilize iomap interface
>
>  drivers/counter/104-quad-8.c    | 169 +++++++++++++++++---------------
>  drivers/gpio/gpio-104-dio-48e.c |  63 ++++++------
>  drivers/gpio/gpio-104-idi-48.c  |  27 ++---
>  drivers/gpio/gpio-104-idio-16.c |  33 ++++---
>  drivers/gpio/gpio-gpio-mm.c     |  43 ++++----
>  drivers/gpio/gpio-ws16c48.c     |  65 ++++++------
>  drivers/iio/adc/stx104.c        |  56 ++++++-----
>  drivers/iio/dac/cio-dac.c       |  14 +--
>  8 files changed, 248 insertions(+), 222 deletions(-)
>
>
> base-commit: ce522ba9ef7e2d9fb22a39eb3371c0c64e2a433e
> --
> 2.35.3
>

I don't see any dependencies so applied the GPIO part.

Bart