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 31072C3279B for ; Fri, 6 Jul 2018 05:37:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DAFF523FE7 for ; Fri, 6 Jul 2018 05:37:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DAFF523FE7 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 S932790AbeGFFhJ (ORCPT ); Fri, 6 Jul 2018 01:37:09 -0400 Received: from mail.bugwerft.de ([46.23.86.59]:37586 "EHLO mail.bugwerft.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932199AbeGFFgC (ORCPT ); Fri, 6 Jul 2018 01:36:02 -0400 Received: from localhost.localdomain (pD95EF57F.dip0.t-ipconnect.de [217.94.245.127]) by mail.bugwerft.de (Postfix) with ESMTPSA id 2A3A728DBF7; Fri, 6 Jul 2018 05:35:57 +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 v4 1/5] dt-bindings: w1: document generic onewire bindings Date: Fri, 6 Jul 2018 07:35:48 +0200 Message-Id: <20180706053552.11438-2-daniel@zonque.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180706053552.11438-1-daniel@zonque.org> References: <20180706053552.11438-1-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 describes how w1 slave deviceses are grouped under master nodes. It also augments the existing w1-gpio.txt document a bit. Signed-off-by: Daniel Mack --- .../devicetree/bindings/w1/w1-gpio.txt | 11 +++++--- Documentation/devicetree/bindings/w1/w1.txt | 25 +++++++++++++++++++ 2 files changed, 33 insertions(+), 3 deletions(-) create mode 100644 Documentation/devicetree/bindings/w1/w1.txt 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..05f26b27d898 --- /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 { + compatible = "w1-gpio"; + gpios = <&gpio 100 0>, <&gpio 101 0>; + + battery { + compatible = "maxim,ds2760"; + power-supplies = <&charger>; + }; + }; -- 2.17.1