From patchwork Thu Oct 24 11:41:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matti Vaittinen X-Patchwork-Id: 1182931 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=fi.rohmeurope.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46zQMC6YHgz9sQm for ; Thu, 24 Oct 2019 22:41:59 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2439109AbfJXLl6 (ORCPT ); Thu, 24 Oct 2019 07:41:58 -0400 Received: from mail-lf1-f66.google.com ([209.85.167.66]:42807 "EHLO mail-lf1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2407878AbfJXLl5 (ORCPT ); Thu, 24 Oct 2019 07:41:57 -0400 Received: by mail-lf1-f66.google.com with SMTP id z12so18847120lfj.9; Thu, 24 Oct 2019 04:41:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=m3o/lWfrwRFPHJi2BOThyBDN3PdB2H+vW0rhvq41yII=; b=tRjKyjUUktfzWLNXiquXV4c+n0HyyiyU1q6FIGkkxiRQ0IdBWo+bsMSfKjet62xY1B gYZISvqzoglkl1mJlfI7jV/NyiejbYPA3cSSbF2DEuH18k678LNVyUC04Ap9/Wwbaxz2 qNf/hL+QZvmusI8kMb7mOr3x6VzOVUCPfLRSmAQWr+Bexgeqpg4LFVlmMBOombibCyT/ 5R51QFyZA2sDywGIP3QasB40g6Ig+yKGKxWStiBX0mRmBo7ycYrSMTMGSemPe3fx1Nzc BA7XvO2Sx++lHTasEAXevhEB3zCTAiKLdT0nSRmxTv9xC0Vea5NTo1r7Ox1VIqsA1snR nWNA== X-Gm-Message-State: APjAAAXyFLEGVIB3A+o1ZX39jrDG3L412t6aLRrYmfCyUnpVSzY7wsRa gmP4WwNeJMTM9LJ40pX4sF8= X-Google-Smtp-Source: APXvYqzrbGQ0ttrOhQLi4AqqOXsG/uNNge6qqlhyHnCTkSlAS+M74Xd2zhLobDiLUr03QDL4RM5A4A== X-Received: by 2002:ac2:5e90:: with SMTP id b16mr13561107lfq.119.1571917313794; Thu, 24 Oct 2019 04:41:53 -0700 (PDT) Received: from localhost.localdomain ([213.255.186.46]) by smtp.gmail.com with ESMTPSA id u8sm18047678lfb.36.2019.10.24.04.41.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Oct 2019 04:41:53 -0700 (PDT) Date: Thu, 24 Oct 2019 14:41:45 +0300 From: Matti Vaittinen To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.com Cc: Lee Jones , Rob Herring , Mark Rutland , Liam Girdwood , Mark Brown , Michael Turquette , Stephen Boyd , Linus Walleij , Bartosz Golaszewski , Jacek Anaszewski , Pavel Machek , Dan Murphy , Alessandro Zummo , Alexandre Belloni , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, linux-leds@vger.kernel.org, linux-rtc@vger.kernel.org Subject: [RFC PATCH v2 02/13] dt-bindings: mfd: Document ROHM BD71828 bindings Message-ID: <0182df3c49c6c804ee20ef32fc4b85b50ff45fca.1571915550.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org ROHM BD71828 Power management IC integrates 7 buck converters, 7 LDOs, a real-time clock (RTC), 3 GPO/regulator control pins, HALL input and a 32.768 kHz clock gate. Document the dt bindings drivers are using. Signed-off-by: Matti Vaittinen --- No changes since v1 .../bindings/mfd/rohm,bd71828-pmic.txt | 180 ++++++++++++++++++ 1 file changed, 180 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.txt diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.txt b/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.txt new file mode 100644 index 000000000000..125efa9f3de0 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.txt @@ -0,0 +1,180 @@ +* ROHM BD71828 Power Management Integrated Circuit bindings + +BD71828GW is a single-chip power management IC for battery-powered portable +devices. The IC integrates 7 buck converters, 7 LDOs, and a 1500 mA single-cell +linear charger. Also included is a Coulomb counter, a real-time clock (RTC), +and a 32.768 kHz clock gate. + +Required properties: + - compatible : Should be "rohm,bd71828". + - reg : I2C slave address. + - interrupt-parent : Phandle to the parent interrupt controller. + - interrupts : The interrupt line the device is connected to. + - clocks : The parent clock connected to PMIC. + - #clock-cells : Should be 0. + - regulators : List of child nodes that specify the + regulators. Please see + ../regulator/rohm,bd71828-regulator.txt + - gpio-controller : To indicate BD71828 acts as a GPIO controller. + - #gpio-cells : Should be 2. The first cell is the pin number + and the second cell is used to specify flags. + See ../gpio/gpio.txt for more information. + +The BD71828 RUN state is divided into 4 configurable run-levels named RUN0, +RUN1, RUN2 and RUN3. Bucks 1, 2, 6 and 7 can be either controlled individually +via I2C, or some/all of them can be bound to run-levels and controlled as a +group. If bucks are controlled individually these run-levels are ignored. See +../regulator/rohm,bd71828-regulator.txt for how to define regulator voltages +for run-levels. Run-levels can be changed by I2C or GPIO depending on PMIC's OTP +configuration. + +Optional properties: +- clock-output-names : Should contain name for output clock. +- rohm,dvs-vsel-gpios : GPIOs used to control PMIC run-levels. Should + describe two GPIOs. (See run-level control in + data-sheet). If this property is omitted but + some bucks are marked to be controlled by + run-levels - then OTP option allowing + run-level control via I2C is assumed. +- gpio-reserved-ranges : Usage of GPIO pins can be changed via OTP. + This property can be used to mark the pins + which should not be configured for GPIO. + Please see the ../gpio/gpio.txt for more + information. + +Example: + + /* external oscillator node */ + osc: oscillator { + compatible = "fixed-clock"; + #clock-cells = <1>; + clock-frequency = <32768>; + clock-output-names = "osc"; + }; + + pmic: pmic@4b { + compatible = "rohm,bd71828"; + reg = <0x4b>; + interrupt-parent = <&gpio1>; + interrupts = <29 GPIO_ACTIVE_LOW>; + clocks = <&osc 0>; + #clock-cells = <0>; + clock-output-names = "bd71828-32k-out"; + gpio-controller; + #gpio-cells = <2>; + ngpios = <4>; + gpio-reserved-ranges = <0 1 2 1>; + gpio-line-names = "EPDEN"; + rohm,dvs-vsel-gpios = <&gpio1 12 0>, + <&gpio1 13 0>; + regulators { + buck1: BUCK1 { + regulator-name = "buck1"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <2000000>; + regulator-ramp-delay = <2500>; + rohm,dvs-runlvl-ctrl; + rohm,dvs-runlevel0-voltage = <500000>; + rohm,dvs-runlevel1-voltage = <506250>; + rohm,dvs-runlevel2-voltage = <512500>; + rohm,dvs-runlevel3-voltage = <518750>; + regulator-boot-on; + }; + buck2: BUCK2 { + regulator-name = "buck2"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <2000000>; + regulator-ramp-delay = <2500>; + rohm,dvs-runlvl-ctrl; + rohm,dvs-runlevel0-voltage = <500000>; + rohm,dvs-runlevel1-voltage = <506250>; + rohm,dvs-runlevel2-voltage = <512500>; + rohm,dvs-runlevel3-voltage = <518750>; + regulator-boot-on; + }; + buck3: BUCK3 { + regulator-name = "buck3"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <2000000>; + regulator-boot-on; + }; + buck4: BUCK4 { + regulator-name = "buck4"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1800000>; + regulator-boot-on; + }; + buck5: BUCK5 { + regulator-name = "buck5"; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + buck6: BUCK6 { + regulator-name = "buck6"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <2000000>; + regulator-ramp-delay = <2500>; + rohm,dvs-runlvl-ctrl; + rohm,dvs-runlevel0-voltage = <500000>; + rohm,dvs-runlevel1-voltage = <506250>; + rohm,dvs-runlevel2-voltage = <512500>; + rohm,dvs-runlevel3-voltage = <518750>; + regulator-boot-on; + }; + buck7: BUCK7 { + regulator-name = "buck7"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <2000000>; + regulator-ramp-delay = <2500>; + rohm,dvs-runlvl-ctrl; + rohm,dvs-runlevel0-voltage = <500000>; + rohm,dvs-runlevel1-voltage = <506250>; + rohm,dvs-runlevel2-voltage = <512500>; + rohm,dvs-runlevel3-voltage = <518750>; + regulator-boot-on; + }; + ldo1: LDO1 { + regulator-name = "ldo1"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + ldo2: LDO2 { + regulator-name = "ldo2"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + ldo3: LDO3 { + regulator-name = "ldo3"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + ldo4: LDO4 { + regulator-name = "ldo4"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + ldo5: LDO5 { + regulator-name = "ldo5"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + ldo6: LDO6 { + regulator-name = "ldo6"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-boot-on; + }; + ldo7_reg: LDO7 { + regulator-name = "ldo7"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + }; + };