From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [PATCH v2] Documentation: gpio: guidelines for bindings Date: Wed, 29 Oct 2014 09:36:11 +0100 Message-ID: <4218554.VFiN8kJDb1@wuerfel> References: <1414570394-11706-1-git-send-email-acourbot@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <1414570394-11706-1-git-send-email-acourbot@nvidia.com> Sender: linux-gpio-owner@vger.kernel.org To: Alexandre Courbot Cc: Linus Walleij , devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, gnurou@gmail.com, "Rafael J. Wysocki" , Mika Westerberg List-Id: devicetree@vger.kernel.org On Wednesday 29 October 2014 17:13:14 Alexandre Courbot 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 > CC: Linus Walleij > CC: Arnd Bergmann > CC: Rafael J. Wysocki > CC: Mika Westerberg Acked-by: Arnd Bergmann