From patchwork Tue Sep 23 17:37:57 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Agner X-Patchwork-Id: 4958641 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 1CF1B9F3DF for ; Tue, 23 Sep 2014 17:41:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D3C9820254 for ; Tue, 23 Sep 2014 17:41:52 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A99A9200E3 for ; Tue, 23 Sep 2014 17:41:51 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XWU3v-00088S-Qu; Tue, 23 Sep 2014 17:39:39 +0000 Received: from mail.kmu-office.ch ([178.209.48.102]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XWU3G-0007OV-M1 for linux-arm-kernel@lists.infradead.org; Tue, 23 Sep 2014 17:38:59 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.kmu-office.ch (Postfix) with ESMTP id 6389A4CD5C for ; Tue, 23 Sep 2014 19:36:55 +0200 (CEST) X-Virus-Scanned: by amavisd-new at kmu-office.ch X-Amavis-Alert: BAD HEADER, Duplicate header field: "In-Reply-To" Received: from mail.kmu-office.ch ([127.0.0.1]) by localhost (mail.kmu-office.ch [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bLrVeX0jxjS5 for ; Tue, 23 Sep 2014 19:36:55 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by mail.kmu-office.ch (Postfix) with ESMTP id 78DB54CD78 for ; Tue, 23 Sep 2014 19:36:51 +0200 (CEST) Received: from trochilidae.agner.local (195-226-23-137.pool.cyberlink.ch [195.226.23.137]) (Authenticated sender: stefan@agner.ch) by mail.kmu-office.ch (Postfix) with ESMTPSA id ED3EC4CD53; Tue, 23 Sep 2014 19:36:50 +0200 (CEST) From: Stefan Agner To: linus.walleij@linaro.org, gnurou@gmail.com, shawn.guo@freescale.com, kernel@pengutronix.de Subject: [PATCH v2 5/5] Documentation: dts: Add bindings for Vybrid GPIO/PORT module Date: Tue, 23 Sep 2014 19:37:57 +0200 Message-Id: X-Mailer: git-send-email 2.1.0 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140923_103859_072697_EED96B62 X-CRM114-Status: GOOD ( 10.96 ) X-Spam-Score: 0.0 (/) Cc: linux-gpio@vger.kernel.org, stefan@agner.ch, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bpringlemeir@nbsps.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The Vybrid SoC device tree (vf610.dtsi) used this bindings since its initial commit in May 2013. However, a proper gpiolib driver was missing so far. With the addition of the gpiolib driver, the bindings proved to be useful and complete, hence a good time to add the documentation. Signed-off-by: Stefan Agner --- .../devicetree/bindings/gpio/gpio-vf610.txt | 56 ++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-vf610.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-vf610.txt b/Documentation/devicetree/bindings/gpio/gpio-vf610.txt new file mode 100644 index 0000000..da84121 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-vf610.txt @@ -0,0 +1,56 @@ +* Freescale VF610 PORT/GPIO module + +The Freescale PORT/GPIO modules are two adjacent modules providing GPIO +functionality. Each pair serves 32 GPIOs. The VF610 has 5 instances of +each, and each PORT module has its own interrupt. + +Required properties for GPIO node: +- compatible : Should be "fsl,-gpio", currently "fsl,vf610-gpio" +- reg : The first reg tuple represents the PORT module, the second tuple + the GPIO module. +- interrupts : Should be the port interrupt shared by all 32 pins. +- 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 +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells : Should be 2. The first cell is the GPIO number. + The second cell bits[3:0] is used to specify trigger type and level flags: + 1 = low-to-high edge triggered. + 2 = high-to-low edge triggered. + 4 = active high level-sensitive. + 8 = active low level-sensitive. + +Note: Each GPIO port should have an alias correctly numbered in "aliases" +node. + +Examples: + +aliases { + gpio0 = &gpio1; + gpio1 = &gpio2; +}; + +gpio1: gpio@40049000 { + compatible = "fsl,vf610-gpio"; + reg = <0x40049000 0x1000 0x400ff000 0x40>; + interrupts = <0 107 IRQ_TYPE_LEVEL_HIGH>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + gpio-ranges = <&iomuxc 0 0 32>; +}; + +gpio2: gpio@4004a000 { + compatible = "fsl,vf610-gpio"; + reg = <0x4004a000 0x1000 0x400ff040 0x40>; + interrupts = <0 108 IRQ_TYPE_LEVEL_HIGH>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + gpio-ranges = <&iomuxc 0 32 32>; +}; +