From patchwork Mon Sep 10 20:35:40 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 1433761 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 4CE13DF28C for ; Mon, 10 Sep 2012 20:39:22 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TBAiJ-0002zH-Rc; Mon, 10 Sep 2012 20:36:11 +0000 Received: from mail.free-electrons.com ([88.190.12.23]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TBAi6-0002y9-5u for linux-arm-kernel@lists.infradead.org; Mon, 10 Sep 2012 20:35:59 +0000 Received: by mail.free-electrons.com (Postfix, from userid 106) id D5BA315C; Mon, 10 Sep 2012 22:36:57 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 shortcircuit=no autolearn=ham version=3.3.1 Received: from localhost (gar31-2-82-226-185-134.fbx.proxad.net [82.226.185.134]) by mail.free-electrons.com (Postfix) with ESMTPSA id 68540186; Mon, 10 Sep 2012 22:36:46 +0200 (CEST) From: Maxime Ripard To: shawn.guo@linaro.org, grant.likely@secretlab.ca, linux-arm-kernel@lists.infradead.org, linus.walleij@linaro.org Subject: [PATCH 2/3] gpio: 74x164: dts: Add documentation for the dt binding Date: Mon, 10 Sep 2012 22:35:40 +0200 Message-Id: <1347309341-15447-3-git-send-email-maxime.ripard@free-electrons.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1347309341-15447-1-git-send-email-maxime.ripard@free-electrons.com> References: <1347309341-15447-1-git-send-email-maxime.ripard@free-electrons.com> X-Spam-Note: CRM114 invocation failed X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record -0.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: brian@crystalfontz.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Signed-off-by: Maxime Ripard --- .../devicetree/bindings/gpio/gpio-74x164.txt | 22 ++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-74x164.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-74x164.txt b/Documentation/devicetree/bindings/gpio/gpio-74x164.txt new file mode 100644 index 0000000..cc26080 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-74x164.txt @@ -0,0 +1,22 @@ +* Generic 8-bits shift register GPIO driver + +Required properties: +- compatible : Should be "fairchild,74hc595" +- reg : chip select number +- gpio-controller : Marks the device node as a gpio controller. +- #gpio-cells : Should be two. The first cell is the pin number and + the second cell is used to specify the gpio polarity: + 0 = active high + 1 = active low +- registers-number: Number of daisy-chained shift registers + +Example: + +gpio5: gpio5@0 { + compatible = "fairchild,74hc595"; + reg = <0>; + gpio-controller; + #gpio-cells = <2>; + registers-number = <4>; + spi-max-frequency = <100000>; +};