From mboxrd@z Thu Jan  1 00:00:00 1970
From: Linus Walleij <linus.walleij@linaro.org>
Subject: Re: [RFC PATCH v2 05/12] mtd: rawnand: ams-delta: use GPIO API for
 data read/write
Date: Fri, 10 Aug 2018 12:25:45 +0200
Message-ID: <CACRpkdagqyuhxtv43UezqcKZvvUbOrHB3Cz9oaHT5X+64WaZQQ@mail.gmail.com>
References: <20180718235710.18242-1-jmkrzyszt@gmail.com> <20180806222918.12644-1-jmkrzyszt@gmail.com>
 <20180806222918.12644-6-jmkrzyszt@gmail.com>
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To: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Boris Brezillon <boris.brezillon@bootlin.com>, Jonathan Corbet <corbet@lwn.net>, =?UTF-8?Q?Miqu=C3=A8l_Raynal?= <miquel.raynal@bootlin.com>, Richard Weinberger <richard@nod.at>, David Woodhouse <dwmw2@infradead.org>, Brian Norris <computersforpeace@gmail.com>, Mark Vasut <marek.vasut@gmail.com>, ext Tony Lindgren <tony@atomide.com>, Aaro Koskinen <aaro.koskinen@iki.fi>, Linux ARM <linux-arm-kernel@lists.infradead.org>, Linux-OMAP <linux-omap@vger.kernel.org>, linux-mtd@lists.infradead.org, linux-doc@vger.kernel.org, "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
List-Id: linux-gpio@vger.kernel.org

On Tue, Aug 7, 2018 at 12:29 AM Janusz Krzysztofik <jmkrzyszt@gmail.com> wrote:

> Don't readw()/writew() data directly from/to GPIO port which is under
> control of gpio-omap driver, use GPIO API instead.
>
> Degrade of performance on Amstrad Delta is completely not acceptable.
>
> The driver should work with any 8+-bit bidirectional GPIO port, not
> only OMAP.
>
> Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij