linux-kernel - Re: [PATCH v2] Documentation: gpio: guidelines for bindings

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Date:	Thu, 30 Oct 2014 16:42:45 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Alexandre Courbot <acourbot@...dia.com>
Cc:	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Arnd Bergmann <arnd@...db.de>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>
Subject: Re: [PATCH v2] Documentation: gpio: guidelines for bindings

On Wed, Oct 29, 2014 at 9:13 AM, Alexandre Courbot <acourbot@...dia.com> wrote:

> Now that ACPI supports named GPIO properties, either through ACPI 5.1 or
> the per-driver ACPI GPIO mappings, we can be more narrow about the way
> GPIOs should be specified in Device Tree bindings.
>
> This patch updates the GPIO DT bindings documentation to highlight the
> following rules for new GPIO bindings:
>
> - All new bindings must have a meaningful name (e.g. the "gpios"
>   property must not be used)
> - The only suffix allowed is "-gpios", no matter the number of
>   descriptors in the property
> - GPIOs can only be grouped under the same property when they serve the
>   same purpose, a case that should remain exceptional (e.g. bit-banged
>   data lines).
>
> Signed-off-by: Alexandre Courbot <acourbot@...dia.com>
> CC: Linus Walleij <linus.walleij@...aro.org>
> CC: Arnd Bergmann <arnd@...db.de>
> CC: Rafael J. Wysocki <rjw@...ysocki.net>
> CC: Mika Westerberg <mika.westerberg@...ux.intel.com>
> ---
> Changes since v1:
> - Rewritten in OS-neutral manner.

Patch applied with the ACKs, thanks!

Yours,
Linus Walleij
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