From patchwork Mon Jun 17 18:32:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Francesco Dolcini X-Patchwork-Id: 13701260 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 005B2364BE; Mon, 17 Jun 2024 18:32:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.194.8.81 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718649154; cv=none; b=V/+KUT+LjwUSwEXUGlBbPbXgu21xntaKKgZlPNjoAl5+FMbXBJ4X/3gxbsWV0HnarJUqimmA4SbvRu1FwVifroyJ17VmnCg1+E2h22eqg8C/7YyWaDo76EWVJOfeOdlYH/UGRGjVjPAvZAGobtnhzycwDNHJCkfwpMIumGJktiM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718649154; c=relaxed/simple; bh=P2wdIP0uG4dkAQoGvXpaeCBMIlNZeaWaFsz2yUMEZCE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=lCssyfvQWNGpDjC61BG/koN9Va7qaGuMHSo7M9nV4jgxINTO2p9byC86ajfqOQ5obR7T3weF/9js4xWz+u7Ms4slcQmqS1vmu8IVYMDCR6cLsczyVZLYO7mwAqtLoVPyunkQwD19XqZ2ZP0xnk9XtSHUra74boLl3UAWZr3XA6g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it; spf=pass smtp.mailfrom=dolcini.it; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b=XQdeQGeG; arc=none smtp.client-ip=217.194.8.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dolcini.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b="XQdeQGeG" Received: from francesco-nb.pivistrello.it (93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id 0B0E41F9D9; Mon, 17 Jun 2024 20:32:22 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1718649142; bh=jpkd5bGIuhY5z6UHD0UtFi3x8Uchmz6Nlu3roTK2w/w=; h=From:To:Subject; b=XQdeQGeGI8h2e9Hpr2g85F2t1huGD4smCQCCInN3HAgwPG0orYF+Rak6unbaQr7g5 FhFQEMOqr6HIPSlATMY11BIjbek6xNBSlt8p4CFHASK/zT9jqVks2EkFqbt3hZX5ja mPe5o7gXFXLs52oy4xbKmAd2vaOFVBWMH6IIPgl49yL4nzw6jduvnK4MAxg8DqQ9H0 1ST3tEjKbLdxRjywkBKGRk83lbr/P7w+ul/0ZdnbFp/z9NhxxXeN6Qa1eiVMo9O6GZ KpgduggkXyhsAsQ1QIF/rldZIAWqkqVvX2IAzQyV6pHGOz2K76Rvw28qVnnxNyfT/b qouYoA51JQk8w== From: Francesco Dolcini To: Francesco Dolcini , =?utf-8?q?Jo=C3=A3o_Paulo_Gon?= =?utf-8?q?=C3=A7alves?= , Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: =?utf-8?q?Jo=C3=A3o_Paulo_Gon=C3=A7alves?= , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Francesco Dolcini , Conor Dooley Subject: [PATCH v3 1/2] dt-bindings: iio: adc: add ti,ads1119 Date: Mon, 17 Jun 2024 20:32:14 +0200 Message-Id: <20240617183215.4080-2-francesco@dolcini.it> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240617183215.4080-1-francesco@dolcini.it> References: <20240617183215.4080-1-francesco@dolcini.it> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: João Paulo Gonçalves Add devicetree bindings for Texas Instruments ADS1119 16-bit ADC with I2C interface. Datasheet: https://www.ti.com/lit/gpn/ads1119 Signed-off-by: João Paulo Gonçalves Signed-off-by: Francesco Dolcini Reviewed-by: Conor Dooley --- v3: - add avdd and dvdd supplies - add Reviewed-by: Conor Dooley + +description: + The TI ADS1119 is a precision 16-bit ADC over I2C that offers single-ended and + differential measurements using a multiplexed input. It features a programmable + gain, a programmable sample rate, an internal oscillator and voltage reference, + and a 50/60Hz rejection filter. + +properties: + compatible: + const: ti,ads1119 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + reset-gpios: + maxItems: 1 + + avdd-supply: true + dvdd-supply: true + + vref-supply: + description: + ADC external reference voltage (VREF). + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + "#io-channel-cells": + const: 1 + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + - avdd-supply + - dvdd-supply + +patternProperties: + "^channel@([0-6])$": + $ref: adc.yaml + type: object + properties: + reg: + minimum: 0 + maximum: 6 + + diff-channels: + description: + Differential input channels AIN0-AIN1, AIN2-AIN3 and AIN1-AIN2. + oneOf: + - items: + - const: 0 + - const: 1 + - items: + - const: 2 + - const: 3 + - items: + - const: 1 + - const: 2 + + single-channel: + description: + Single-ended input channels AIN0, AIN1, AIN2 and AIN3. + minimum: 0 + maximum: 3 + + oneOf: + - required: + - diff-channels + - required: + - single-channel + + required: + - reg + + unevaluatedProperties: false + +additionalProperties: false + +examples: + - | + + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + adc@40 { + compatible = "ti,ads1119"; + reg = <0x40>; + interrupt-parent = <&gpio1>; + interrupts = <25 IRQ_TYPE_EDGE_FALLING>; + reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>; + avdd-supply = <®_avdd_ads1119>; + dvdd-supply = <®_dvdd_ads1119>; + vref-supply = <®_vref_ads1119>; + #address-cells = <1>; + #size-cells = <0>; + #io-channel-cells = <1>; + + channel@0 { + reg = <0>; + single-channel = <0>; + }; + + channel@1 { + reg = <1>; + diff-channels = <0 1>; + }; + + channel@2 { + reg = <2>; + single-channel = <3>; + }; + + channel@3 { + reg = <3>; + single-channel = <1>; + }; + + channel@4 { + reg = <4>; + single-channel = <2>; + }; + + channel@5 { + reg = <5>; + diff-channels = <1 2>; + }; + + channel@6 { + reg = <6>; + diff-channels = <2 3>; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index bff979a507ba..8acc2c83605c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -22390,6 +22390,13 @@ M: Robert Richter S: Odd Fixes F: drivers/gpio/gpio-thunderx.c +TI ADS1119 ADC DRIVER +M: Francesco Dolcini +M: João Paulo Gonçalves +L: linux-iio@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/iio/adc/ti,ads1119.yaml + TI ADS7924 ADC DRIVER M: Hugo Villeneuve L: linux-iio@vger.kernel.org