From patchwork Fri Apr 28 20:08:11 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Cercueil X-Patchwork-Id: 9705287 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 51B5B602BF for ; Fri, 28 Apr 2017 20:09:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 43FAD28698 for ; Fri, 28 Apr 2017 20:09:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 38257286A1; Fri, 28 Apr 2017 20:09:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A39AE28698 for ; Fri, 28 Apr 2017 20:09:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S642564AbdD1UI5 (ORCPT ); Fri, 28 Apr 2017 16:08:57 -0400 Received: from outils.crapouillou.net ([89.234.176.41]:39044 "EHLO outils.crapouillou.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1166046AbdD1UIu (ORCPT ); Fri, 28 Apr 2017 16:08:50 -0400 From: Paul Cercueil To: Linus Walleij , Alexandre Courbot , Rob Herring , Mark Rutland , Ralf Baechle Cc: Boris Brezillon , Thierry Reding , Bartlomiej Zolnierkiewicz , Maarten ter Huurne , Lars-Peter Clausen , Paul Burton , james.hogan@imgtec.com, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@linux-mips.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-pwm@vger.kernel.org, linux-fbdev@vger.kernel.org, Paul Cercueil Subject: [PATCH v5 01/14] dt/bindings: Document pinctrl-ingenic Date: Fri, 28 Apr 2017 22:08:11 +0200 Message-Id: <20170428200824.10906-2-paul@crapouillou.net> In-Reply-To: <20170428200824.10906-1-paul@crapouillou.net> References: <20170402204244.14216-2-paul@crapouillou.net> <20170428200824.10906-1-paul@crapouillou.net> Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This commit adds documentation for the devicetree bindings of the pinctrl-ingenic driver, which handles pin configuration and pin muxing of the Ingenic SoCs currently supported by the Linux kernel. Signed-off-by: Paul Cercueil Acked-by: Rob Herring --- .../bindings/pinctrl/ingenic,pinctrl.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt v2: Rewrote the documentation for the new pinctrl-ingenic driver v3: No changes v4: Update for the v4 version of the pinctrl-ingenic driver v5: Rename 'ingenic-pinctrl@...' to 'pin-controller@...' in example diff --git a/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt new file mode 100644 index 000000000000..ca313a7aeaff --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt @@ -0,0 +1,41 @@ +Ingenic jz47xx pin controller + +Please refer to pinctrl-bindings.txt in this directory for details of the +common pinctrl bindings used by client devices, including the meaning of the +phrase "pin configuration node". + +For the jz47xx SoCs, pin control is tightly bound with GPIO ports. All pins may +be used as GPIOs, multiplexed device functions are configured within the +GPIO port configuration registers and it is typical to refer to pins using the +naming scheme "PxN" where x is a character identifying the GPIO port with +which the pin is associated and N is an integer from 0 to 31 identifying the +pin within that GPIO port. For example PA0 is the first pin in GPIO port A, and +PB31 is the last pin in GPIO port B. The jz4740 contains 4 GPIO ports, PA to +PD, for a total of 128 pins. The jz4780 contains 6 GPIO ports, PA to PF, for a +total of 192 pins. + + +Required properties: +-------------------- + + - compatible: One of: + - "ingenic,jz4740-pinctrl" + - "ingenic,jz4770-pinctrl" + - "ingenic,jz4780-pinctrl" + - reg: Address range of the pinctrl registers. + + +GPIO sub-nodes +-------------- + +The pinctrl node can have optional sub-nodes for the Ingenic GPIO driver; +please refer to ../gpio/ingenic,gpio.txt. + + +Example: +-------- + +pinctrl: pin-controller@10010000 { + compatible = "ingenic,jz4740-pinctrl"; + reg = <0x10010000 0x400>; +};