From patchwork Sat Oct 31 18:17:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 320106 Delivered-To: patch@linaro.org Received: by 2002:a92:7b12:0:0:0:0:0 with SMTP id w18csp2437005ilc; Sat, 31 Oct 2020 11:20:16 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzsZwjAYEyrIohccAthqsu4tOiRdmrd+MEeQ+7D0ExHDJ7NLU3k2+ZzQJ07pAeyOxopUFAx X-Received: by 2002:a17:906:a0cb:: with SMTP id bh11mr8463871ejb.314.1604168416292; Sat, 31 Oct 2020 11:20:16 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1604168416; cv=none; d=google.com; s=arc-20160816; b=ZK8JmocBsJX7Apc64GEgAlC6okT24+1bUpugbHnFj7tb47kRQnAHINaW0ICdli/FNV 46cnXDYXIKUnd9Y+g8s62NY8x7DMeNqtYa3h2j4Jtydy0uT+B4EjmuPH/MfcAVPkEOa3 SB8d1nhbIjxHDSZytxIktAcItVkxffs7V/h8BtqGW6no7cFxsCtrof2CVlrr3Sje4jIG GkP+EiSksOoexkvwU0zCigPTcuj16Z1Zhw8sffF8ZwfyxujG1KVTpHnKe2fjxpgqZqho VqKlQonwdJGxnXX7Gfw7NXSQ3Pk01pH9h2sEWNu/iS1IEjNt2tINBYeQSCDXYS6QDsmX pyLQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=tl2C5r1CuWBoWila9LAT+bXAHBE5bfxg0HGWQ/iEHbo=; b=qwZDZStjRqcdTLOZsiP70SeePRNxjm8xa8Qyn5p1EzVP0pNKlDpIF503Hs+JUcyym8 TAWIbWEElP1a4xWGvBF2aRcYPakycDcqJCkzFVggsuU9Vpw2b1HvuT0yHEBJsqp+eWFH OjNBy6Ut6eebZvVLNiFSNyXIwP+wpOIo13ho3XIYbfXDwOYigHwBOxTtUG4oNi+FmElo BL6Cj3f1X25M68KpwN0op1eStnY0CCanvURMAL1FXXa5b1DO/eNJBXgomvh56GZu9fXy UweGPypTuG/oJ6sIjICHoR1iGVgG5r7ctYFkbNLa1EuebHS4HaD9XjQVbEz0B071r0Tn 0mlg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=J7IOWt6P; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id a16si8093688ejk.22.2020.10.31.11.20.16; Sat, 31 Oct 2020 11:20:16 -0700 (PDT) Received-SPF: pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=J7IOWt6P; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728219AbgJaSUP (ORCPT + 6 others); Sat, 31 Oct 2020 14:20:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:47344 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727967AbgJaSUP (ORCPT ); Sat, 31 Oct 2020 14:20:15 -0400 Received: from localhost.localdomain (cpc149474-cmbg20-2-0-cust94.5-4.cable.virginm.net [82.4.196.95]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B5A1E206E3; Sat, 31 Oct 2020 18:20:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604168414; bh=jbJQIsNnmVBL/hC0vfUaWlEmHz/8T8FVXPn5z06RA3w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=J7IOWt6PAHkN+iznkuGVNVy5FV0MNErDNX0ktTn4O02fu4z/TRS3v3lhw6qySRroU gYcNbTJjRvsfNpQn25qsWg7WpghII4fwK6F13q2njXCSYq57yt3KPttxRHyvbBczWR urKn5Ii3Km+k90wT/NFqnYNG1WGyHjNUX2kmfy7k= From: Jonathan Cameron To: linux-iio@vger.kernel.org, Rob Herring , devicetree@vger.kernel.org, linux-i2c@vger.kernel.org Cc: Wolfram Sang , Jonathan Cameron , Peter Rosin , Wolfram Sang Subject: [PATCH 1/3] dt-bindings:i2c:i2c-gate: txt to yaml conversion Date: Sat, 31 Oct 2020 18:17:59 +0000 Message-Id: <20201031181801.742585-2-jic23@kernel.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201031181801.742585-1-jic23@kernel.org> References: <20201031181801.742585-1-jic23@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Jonathan Cameron Needed to reference from the invensense,mpu6050 yaml binding. Signed-off-by: Jonathan Cameron Cc: Peter Rosin Cc: Wolfram Sang --- .../devicetree/bindings/i2c/i2c-gate.txt | 41 --------------- .../devicetree/bindings/i2c/i2c-gate.yaml | 52 +++++++++++++++++++ 2 files changed, 52 insertions(+), 41 deletions(-) -- 2.28.0 diff --git a/Documentation/devicetree/bindings/i2c/i2c-gate.txt b/Documentation/devicetree/bindings/i2c/i2c-gate.txt deleted file mode 100644 index 1846d236e656..000000000000 --- a/Documentation/devicetree/bindings/i2c/i2c-gate.txt +++ /dev/null @@ -1,41 +0,0 @@ -An i2c gate is useful to e.g. reduce the digital noise for RF tuners connected -to the i2c bus. Gates are similar to arbitrators in that you need to perform -some kind of operation to access the i2c bus past the arbitrator/gate, but -there are no competing masters to consider for gates and therefore there is -no arbitration happening for gates. - -Common i2c gate properties. - -- i2c-gate child node - -Required properties for the i2c-gate child node: -- #address-cells = <1>; -- #size-cells = <0>; - -Optional properties for i2c-gate child node: -- Child nodes conforming to i2c bus binding - - -Example : - - /* - An Invensense mpu9150 at address 0x68 featuring an on-chip Asahi - Kasei ak8975 compass behind a gate. - */ - - mpu9150@68 { - compatible = "invensense,mpu9150"; - reg = <0x68>; - interrupt-parent = <&gpio1>; - interrupts = <18 1>; - - i2c-gate { - #address-cells = <1>; - #size-cells = <0>; - - ax8975@c { - compatible = "ak,ak8975"; - reg = <0x0c>; - }; - }; - }; diff --git a/Documentation/devicetree/bindings/i2c/i2c-gate.yaml b/Documentation/devicetree/bindings/i2c/i2c-gate.yaml new file mode 100644 index 000000000000..29aa0690ed9a --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-gate.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/i2c-gate.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Common i2c gate properties + +maintainers: + - Peter Rosin + +description: | + An i2c gate is useful to e.g. reduce the digital noise for RF tuners connected + to the i2c bus. Gates are similar to arbitrators in that you need to perform + some kind of operation to access the i2c bus past the arbitrator/gate, but + there are no competing masters to consider for gates and therefore there is + no arbitration happening for gates. + +properties: + $nodename: + const: i2c-gate + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}@[0-9a-fA-F]+$": + type: object + description: | + Child nodes for i2c devices behind the gate. + +required: + - "#address-cells" + - "#size-cells" + +additionalProperties: true + +examples: + - | + i2c-gate { + #address-cells = <1>; + #size-cells = <0>; + ak8975@c { + compatible = "ak,ak8975"; + reg = <0x0c>; + }; + }; +... +