From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2347DC3279B for ; Wed, 4 Jul 2018 04:44:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C882F2469C for ; Wed, 4 Jul 2018 04:44:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C882F2469C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=zonque.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933094AbeGDEoX (ORCPT ); Wed, 4 Jul 2018 00:44:23 -0400 Received: from mail.bugwerft.de ([46.23.86.59]:40996 "EHLO mail.bugwerft.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932311AbeGDEoU (ORCPT ); Wed, 4 Jul 2018 00:44:20 -0400 Received: from localhost.localdomain (pD95EF712.dip0.t-ipconnect.de [217.94.247.18]) by mail.bugwerft.de (Postfix) with ESMTPSA id 89E2328D3FF; Wed, 4 Jul 2018 04:40:58 +0000 (UTC) From: Daniel Mack To: zbr@ioremap.net, robh+dt@kernel.org, mark.rutland@arm.com, szabolcs.gyurko@tlt.hu Cc: sre@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, robert.jarzmik@free.fr, Daniel Mack Subject: [PATCH v3 1/4] dt-bindings: w1: document generic onewire and DS2760 bindings Date: Wed, 4 Jul 2018 06:44:08 +0200 Message-Id: <20180704044411.2693-2-daniel@zonque.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180704044411.2693-1-daniel@zonque.org> References: <20180704044411.2693-1-daniel@zonque.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds a generic w1 bindings document that merely describes how slave deviceses are grouped under master nodes. It also adds a specific binding for the ds2760 battery monitor. Signed-off-by: Daniel Mack --- .../bindings/power/supply/maxim,ds2760.txt | 29 +++++++++++++++++++ .../devicetree/bindings/w1/w1-gpio.txt | 11 +++++-- Documentation/devicetree/bindings/w1/w1.txt | 25 ++++++++++++++++ 3 files changed, 62 insertions(+), 3 deletions(-) create mode 100644 Documentation/devicetree/bindings/power/supply/maxim,ds2760.txt create mode 100644 Documentation/devicetree/bindings/w1/w1.txt diff --git a/Documentation/devicetree/bindings/power/supply/maxim,ds2760.txt b/Documentation/devicetree/bindings/power/supply/maxim,ds2760.txt new file mode 100644 index 000000000000..a39d1ada48f2 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/maxim,ds2760.txt @@ -0,0 +1,29 @@ +Devicetree bindings for Maxim DS2760 +==================================== + +The ds2760 is a w1 slave device and must hence have its sub-node in DT +under a w1 bus master node. + +The device exposes a power supply, so the details described in +Documentation/devicetree/bindings/power/supply/power_supply.txt apply. + +Required properties: +- compatible: must be "maxim,ds2760" + +Optional properties: +- power-supplies: Refers to one or more power supplies connected to + this battery. +- maxim,pmod-enabled: This boolean property enables the DS2760 to enter + sleep mode when the DQ line goes low for greater + than 2 seconds and leave sleep Mode when the DQ + line goes high. +- maxim,cache-time: Time im milliseconds to cache the data for. When + this time expires, the values are read again from + the hardware. Defaults to 1000. +- maxim,rated-capacity: The rated capacity of the battery, in mAh. + If not specified, the value stored in the + non-volatile chip memory is used. +- maxim,current-accumulator: + The current accumulator value in mAh. + If not specified, the value stored in the + non-volatile chip memory is used. diff --git a/Documentation/devicetree/bindings/w1/w1-gpio.txt b/Documentation/devicetree/bindings/w1/w1-gpio.txt index 6e09c35d9f1a..3d6554eac240 100644 --- a/Documentation/devicetree/bindings/w1/w1-gpio.txt +++ b/Documentation/devicetree/bindings/w1/w1-gpio.txt @@ -13,10 +13,15 @@ Optional properties: - linux,open-drain: if specified, the data pin is considered in open-drain mode. +Also refer to the generic w1.txt document. + Examples: - onewire@0 { + onewire { compatible = "w1-gpio"; - gpios = <&gpio 126 0>, <&gpio 105 0>; - }; + gpios = <&gpio 0 GPIO_ACTIVE_HIGH>; + battery { + // ... + }; + }; diff --git a/Documentation/devicetree/bindings/w1/w1.txt b/Documentation/devicetree/bindings/w1/w1.txt new file mode 100644 index 000000000000..bee18f7070ec --- /dev/null +++ b/Documentation/devicetree/bindings/w1/w1.txt @@ -0,0 +1,25 @@ +Generic devicetree bindings for onewire (w1) busses +=================================================== + +Onewire busses are described through nodes of their master bus controller. +Slave devices are listed as sub-nodes of such master devices. For now, only +one slave is allowed per bus master. + + +Example: + + charger: charger { + compatible = "gpio-charger"; + charger-type = "mains"; + gpios = <&gpio 1 GPIO_ACTIVE_LOW>; + }; + + onewire@0 { + compatible = "w1-gpio"; + gpios = <&gpio 100 0>, <&gpio 101 0>; + + battery { + compatible = "maxim,ds2760"; + power-supplies = <&charger>; + }; + }; -- 2.17.1