From patchwork Thu Oct 5 10:59:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dumitru Ceclan X-Patchwork-Id: 730595 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 45A87E92709 for ; Thu, 5 Oct 2023 14:30:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233930AbjJEOam (ORCPT ); Thu, 5 Oct 2023 10:30:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234180AbjJEO3E (ORCPT ); Thu, 5 Oct 2023 10:29:04 -0400 Received: from mail-lf1-x133.google.com (mail-lf1-x133.google.com [IPv6:2a00:1450:4864:20::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F05D923D01; Thu, 5 Oct 2023 04:00:50 -0700 (PDT) Received: by mail-lf1-x133.google.com with SMTP id 2adb3069b0e04-50337b43ee6so1096485e87.3; Thu, 05 Oct 2023 04:00:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1696503649; x=1697108449; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=4yKDLEpsQ7VNfIu4ns2cVaF5g5AlvkRxOThMkLNLu54=; b=DyYTpj5O3SDs1MUT4akrYSG3JSOgGJjRn1EwJpWinCaqSyL9jnGX1S7XrMww7JZwtc rpoe11uV7Z+g0eTnyKzi8xCbU5e2bAx1NBMS5D+JD7YJRIar7nkC3q55Q1Dl0Yle3IJr sqS86VcwmAX87PfQFFe/kxTaESCOppN3VpExGiTBc62V1y1nc/+lLHwCxbsE3y5sCaL5 4D3Pkoym3b2QyijwL10TnFbcV5bbdzZJVsjCRs8uYpks/xHxrnY7tCQuiqclaq/7OPdC p1xg6tZIEMqvbqhrrXO1EEfl17hG5QFnk90u41WYid34RYoCrHYTQaFv39P1ZaSGDX39 fUyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696503649; x=1697108449; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=4yKDLEpsQ7VNfIu4ns2cVaF5g5AlvkRxOThMkLNLu54=; b=G9nM1blnRopCp6/ard/AfWg5PvGCdGxFBUeS+pfXKGuqJdTP7EOJL7miUqSdcjZpp2 raKbyh2VW8kAdqYeOQJrC9kFNbYoji14ShLbfG1l48GVsP+wZrneYNaf/UotGqybydIW XXmOddeExtypN1Gksjh+EBdGpm6ppS9byGyCDMVadILCPONWptvkuIC9wlj9niifUx1v rH5tp1Nli3GC/SYZZ7GCPGC8wQ+KS2HNQ8xagI6Xieb28xChGqAwaDG7/p5P7/2oi370 Yrv8yEBFjlaXKcp64Rmq+5l0ojEWNNKl01Yy+zWmaBztOPlfNE1W9epHl7thUa1cZEd1 St9g== X-Gm-Message-State: AOJu0YyD7mzVZNh0GfobWSWtXc22Ywvhup0pRvYUdgAPntzyaLIQw2v/ nmB/4q6bCzv7ELFPH+XT0Wo= X-Google-Smtp-Source: AGHT+IFvXRCpTbbGo0xm+WMtWgdEVQ3lrnpnQBX8o8q8w0En2Ih6C30E19ZNfYUh0gc/2I/xwbNrrg== X-Received: by 2002:ac2:4ec1:0:b0:503:8fa:da22 with SMTP id p1-20020ac24ec1000000b0050308fada22mr3940230lfr.22.1696503648874; Thu, 05 Oct 2023 04:00:48 -0700 (PDT) Received: from localhost.localdomain ([5.2.194.157]) by smtp.gmail.com with ESMTPSA id g11-20020aa7d1cb000000b0052c9f1d3cfasm890066edp.84.2023.10.05.04.00.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Oct 2023 04:00:47 -0700 (PDT) From: Dumitru Ceclan To: mitrutzceclan@gmail.com Cc: linus.walleij@linaro.org, brgl@bgdev.pl, andy@kernel.org, linux-gpio@vger.kernel.org, Lars-Peter Clausen , Jonathan Cameron , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michael Walle , Andy Shevchenko , Arnd Bergmann , ChiaEn Wu , Niklas Schnelle , =?utf-8?q?Leonard_G=C3=B6hrs?= , Mike Looijmans , Haibo Chen , Hugo Villeneuve , Ceclan Dumitru , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/2] dt-bindings: adc: add AD7173 Date: Thu, 5 Oct 2023 13:59:21 +0300 Message-Id: <20231005105921.460657-1-mitrutzceclan@gmail.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The AD7173 family offer a complete integrated Sigma-Delta ADC solution which can be used in high precision, low noise single channel applications or higher speed multiplexed applications. The Sigma-Delta ADC is intended primarily for measurement of signals close to DC but also delivers outstanding performance with input bandwidths out to ~10kHz. Signed-off-by: Dumitru Ceclan --- V2 -> V3 - remove redundant descriptions - use referenced 'bipolar' property - remove newlines from example .../bindings/iio/adc/adi,ad7173.yaml | 130 ++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7173.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7173.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7173.yaml new file mode 100644 index 000000000000..bf9e3cbf842e --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7173.yaml @@ -0,0 +1,130 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2023 Analog Devices Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/adi,ad7173.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD7173 ADC device driver + +maintainers: + - Ceclan Dumitru + +description: | + Bindings for the Analog Devices AD717X ADC's. Datasheets for supported chips: + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7172-2.pdf + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7173-8.pdf + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7175-2.pdf + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7176-2.pdf + +properties: + compatible: + enum: + - adi,ad7172-2 + - adi,ad7173-8 + - adi,ad7175-2 + - adi,ad7176-2 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + spi-max-frequency: + maximum: 20000000 + + spi-cpol: + type: boolean + + spi-cpha: + type: boolean + + required: + - compatible + - reg + - interrupts + +patternProperties: + "^channel@[0-9a-f]$": + type: object + $ref: adc.yaml + unevaluatedProperties: false + + properties: + reg: + minimum: 0 + maximum: 15 + + diff-channels: + items: + minimum: 0 + maximum: 31 + + bipolar: + type: boolean + + required: + - reg + - diff-channels + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + #include + + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "adi,ad7173-8"; + reg = <0>; + + #address-cells = <1>; + #size-cells = <0>; + + interrupts = <25 IRQ_TYPE_EDGE_FALLING>; + interrupt-parent = <&gpio>; + spi-max-frequency = <5000000>; + + channel@0 { + reg = <0>; + bipolar; + diff-channels = <0 1>; + }; + + channel@1 { + reg = <1>; + diff-channels = <2 3>; + }; + + channel@2 { + reg = <2>; + bipolar; + diff-channels = <4 5>; + }; + + channel@3 { + reg = <3>; + bipolar; + diff-channels = <6 7>; + }; + + channel@4 { + reg = <4>; + diff-channels = <8 9>; + }; + }; + };