From patchwork Fri Mar 17 10:05:20 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Charles Keepax X-Patchwork-Id: 740233 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3vl1T04cWJz9rvt for ; Fri, 17 Mar 2017 21:16:04 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750999AbdCQKQD (ORCPT ); Fri, 17 Mar 2017 06:16:03 -0400 Received: from mx0a-001ae601.pphosted.com ([67.231.149.25]:58954 "EHLO mx0b-001ae601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751022AbdCQKQD (ORCPT ); Fri, 17 Mar 2017 06:16:03 -0400 Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v2HA3dBq005602; Fri, 17 Mar 2017 05:04:16 -0500 Authentication-Results: ppops.net; spf=none smtp.mailfrom=ckeepax@opensource.wolfsonmicro.com Received: from mail2.cirrus.com (mail1.cirrus.com [141.131.3.20]) by mx0a-001ae601.pphosted.com with ESMTP id 294fh4t566-1; Fri, 17 Mar 2017 05:04:16 -0500 Received: from EX17.ad.cirrus.com (unknown [172.20.9.81]) by mail2.cirrus.com (Postfix) with ESMTP id F14116121ADF; Fri, 17 Mar 2017 05:04:15 -0500 (CDT) Received: from imbe.wolfsonmicro.main (198.61.95.81) by EX17.ad.cirrus.com (172.20.9.81) with Microsoft SMTP Server id 14.3.301.0; Fri, 17 Mar 2017 10:04:14 +0000 Received: from algalon.ad.cirrus.com (algalon.ad.cirrus.com [198.90.223.36]) by imbe.wolfsonmicro.main (8.14.4/8.14.4) with ESMTP id v2HA3jWe011656; Fri, 17 Mar 2017 10:03:45 GMT From: Charles Keepax To: CC: , , , , , , , Subject: [PATCH v5 3/3] mfd: wm831x: Add device tree binding document Date: Fri, 17 Mar 2017 10:05:20 +0000 Message-ID: <1489745120-2918-3-git-send-email-ckeepax@opensource.wolfsonmicro.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1489745120-2918-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> References: <1489745120-2918-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> MIME-Version: 1.0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1702020001 definitions=main-1703170086 Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Add a device tree binding document for the wm831x series of PMICs. Currently only support for the registering the device and the GPIOs are actually implemented in the driver. Signed-off-by: Charles Keepax --- Changes since v4: - Removed one extra level of ../ for relative links that was incorrect Thanks, Charles Documentation/devicetree/bindings/mfd/wm831x.txt | 81 ++++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/wm831x.txt diff --git a/Documentation/devicetree/bindings/mfd/wm831x.txt b/Documentation/devicetree/bindings/mfd/wm831x.txt new file mode 100644 index 0000000..9f8b743 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/wm831x.txt @@ -0,0 +1,81 @@ +Cirrus Logic/Wolfson Microelectronics wm831x PMICs + +System PMICs with a wide range of additional features. + +Required properties: + + - compatible : One of the following chip-specific strings: + "wlf,wm8310" + "wlf,wm8311" + "wlf,wm8312" + "wlf,wm8320" + "wlf,wm8321" + "wlf,wm8325" + "wlf,wm8326" + + - reg : I2C slave address when connected using I2C, chip select number + when using SPI. + + - gpio-controller : Indicates this device is a GPIO controller. + - #gpio-cells : Must be 2. The first cell is the pin number and the + second cell is used to specify optional parameters (currently unused). + + - interrupts : The interrupt line the IRQ signal for the device is + connected to. + - interrupt-parent : The parent interrupt controller. + + - interrupt-controller : wm831x devices contain interrupt controllers and + may provide interrupt services to other devices. + - #interrupt-cells: Must be 2. The first cell is the IRQ number, and the + second cell is the flags, encoded as the trigger masks from + ../interrupt-controller/interrupts.txt + +Optional sub-nodes: + - regulators : Contains sub-nodes for each of the regulators supplied by + the device. The regulators are bound using their names listed below: + + dcdc1 : DCDC1 + dcdc2 : DCDC2 + dcdc3 : DCDC3 + dcdc4 : DCDC3 + isink1 : ISINK1 + isink2 : ISINK2 + ldo1 : LDO1 + ldo2 : LDO2 + ldo3 : LDO3 + ldo4 : LDO4 + ldo5 : LDO5 + ldo7 : LDO7 + ldo11 : LDO11 + + The bindings details of each regulator can be found in: + ../regulator/regulator.txt + +Example: + +wm8310: pmic@36 { + compatible = "wlf,wm8310"; + reg = <0x36>; + + gpio-controller; + #gpio-cells = <2>; + + interrupts = <347>; + interrupt-parent = <&gic>; + + interrupt-controller; + #interrupt-cells = <2>; + + regulators { + dcdc1: dcdc1 { + regulator-name = "DCDC1"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <600000>; + }; + ldo1: ldo1 { + regulator-name = "LDO1"; + regulator-min-microvolt = <1700000>; + regulator-max-microvolt = <1700000>; + }; + }; +}; diff --git a/MAINTAINERS b/MAINTAINERS index c265a5f..dfe761b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13600,6 +13600,7 @@ F: Documentation/hwmon/wm83?? F: Documentation/devicetree/bindings/extcon/extcon-arizona.txt F: Documentation/devicetree/bindings/regulator/arizona-regulator.txt F: Documentation/devicetree/bindings/mfd/arizona.txt +F: Documentation/devicetree/bindings/mfd/wm831x.txt F: arch/arm/mach-s3c64xx/mach-crag6410* F: drivers/clk/clk-wm83*.c F: drivers/extcon/extcon-arizona.c