linux-kernel - Re: [PATCH v3] iio: stx104: Add GPIO support for the Apex Embedded Systems STX104

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Message-ID: <CACRpkdZ__YaP24hC9y17tnsXC5HybzmQmHdpTCUYSNWciKg5zA@mail.gmail.com>
Date:	Tue, 14 Jun 2016 08:53:48 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	William Breathitt Gray <vilhelm.gray@...il.com>
Cc:	Jonathan Cameron <jic23@...nel.org>,
	Hartmut Knaack <knaack.h@....de>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Peter Meerwald-Stadler <pmeerw@...erw.net>,
	Alexandre Courbot <gnurou@...il.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] iio: stx104: Add GPIO support for the Apex Embedded
 Systems STX104

On Mon, Jun 13, 2016 at 3:06 PM, William Breathitt Gray
<vilhelm.gray@...il.com> wrote:

> The Apex Embedded Systems STX104 device features eight lines of digital
> I/O (four digital inputs and four digital outputs). This patch adds GPIO
> support for these eight lines of digital I/O via GPIOLIB.
>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Cc: Alexandre Courbot <gnurou@...il.com>
> Signed-off-by: William Breathitt Gray <vilhelm.gray@...il.com>
> ---
> Changes in v3:
>   - Revert v2 change; any arch should be able to select GPIOLIB
>   - Return -EINVAL when attempting to set a GPIO to a direction it
>     cannot be
>   - Call stx104_gpio_set to have an initial value when setting a GPIO to
>     output direction

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

Yours,
Linus Walleij