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: 11871579 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D70EE92C for ; Sat, 31 Oct 2020 18:20:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BBAB1206D8 for ; Sat, 31 Oct 2020 18:20:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604168415; bh=jbJQIsNnmVBL/hC0vfUaWlEmHz/8T8FVXPn5z06RA3w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=dLqnjygeGYKxx/svwARR84dQIrL/rnu+KUWjY5GtBJXIQAyXosWpdFXGJtAhzow6V k/Swlbnxnt28ZE99wyHvisXu07ZkNv7IbCr1e3fZQBGjfqIZfOHdMwKR5gcT1E/VjI usjuz57kWEwVJhmaC4PsclZ5iQKEPBoc32pTMzqQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728213AbgJaSUP (ORCPT ); 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: linux-iio@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(-) 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>; + }; + }; +... +