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References: <20220805205321.19452-1-andriy.shevchenko@linux.intel.com> <20220805205321.19452-5-andriy.shevchenko@linux.intel.com>
In-Reply-To: <20220805205321.19452-5-andriy.shevchenko@linux.intel.com>
From:   Andy Shevchenko <andy.shevchenko@gmail.com>
Date:   Fri, 5 Aug 2022 23:22:53 +0200
Message-ID: <CAHp75VdAhm2vvof_WMTgqaV6SARYOtgPfhVA=MntEs7qBFXnjA@mail.gmail.com>
Subject: Re: [PATCH v1 5/5] regmap: mmio: Introduce IO accessors that can talk
 to IO port
To:     Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        William Breathitt Gray <william.gray@linaro.org>
Cc:     Mark Brown <broonie@kernel.org>,
        Aidan MacDonald <aidanmacdonald.0x0@gmail.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>
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On Fri, Aug 5, 2022 at 11:14 PM Andy Shevchenko
<andriy.shevchenko@linux.intel.com> wrote:
>
> Currently regmap MMIO is inconsistent with IO accessors. I.e.
> the Big Endian counterparts are using ioreadXXbe() / iowriteXXbe()
> which are not clean implementations of readXXbe(). Besides that
> some users may use regmap MMIO for IO ports, and this can be done
> by assigning ioreadXX()/iowriteXX() and their Big Endian counterparts
> to the regmap context.
>
> That said, reimplement current Big Endian MMIO accessors by replacing
> ioread()/iowrite() with respective read()/write() and swab() calls.
> While at it, add IO port support with a corresponding flag added.

William, I believe this series allows you to switch PC104 drivers to use regmap.

-- 
With Best Regards,
Andy Shevchenko