From patchwork Thu Feb 13 15:58:57 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tobias Sperling via B4 Relay X-Patchwork-Id: 13973517 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AB9BA18784A; Thu, 13 Feb 2025 15:59:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739462354; cv=none; b=qV1vNwsO8Mpy6X6CBLKwVtc71++qyoMW+SstGIndrLCLnR4QDGJin+qHaDVs9lEai+J7yWksGpLpkE6W9wLyAJxOsR9Bqo3bKbweFerfO9sLPjoDcc5xEDM5Zy8NStXJV35XEoIGwPiHOGDvQ4wYr96ptRz7XPdyniFY/2YHSA8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739462354; c=relaxed/simple; bh=zlBG9qYGUjR/lSZUlalEBvZ9XCoFpAXqvSmJkhuISIU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Hjt22irvqvRSLP1mfTRQN15yWFDJtTZW0FBU/Z4mZjKzMQXdcWcYmZ5nKLtBObf3PCvPlwIoNFFcoTaidLTT7KAmhivxwZRPuec5mu7RbtYalKw/6kVxJQdWZiEJT4MhDk3MUPzoS0LsL4UHBWrexIbjluyFytsZg09EsZwZEQs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lpXRVU/7; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lpXRVU/7" Received: by smtp.kernel.org (Postfix) with ESMTPS id 7D475C4CEE5; Thu, 13 Feb 2025 15:59:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1739462354; bh=zlBG9qYGUjR/lSZUlalEBvZ9XCoFpAXqvSmJkhuISIU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=lpXRVU/7l9NBtnzrZdjBTkJBOIPKHQ+iLLqQMI8PQZJvasEJUyZL8hDN/R8sLP6C8 V7hxZAlU4POG63Hh0FLtAx0k3AK1nMFOd01PHCnc+G5i1CWwU2hRzBPru2jJJf+yNz glepQvj5PTWCm2NaXvs0h2Xf1BCgt/O+18ujfEV7waZ24xRwUM4P6t095J8nNGnA8d WO9OzQRtPjwq3Nh6241C14NU7QFKfOePEAqsUVhtYlkSDUmKDAc7olTdkKy680Yt7Y 0GrlwJjKrhhtuI35KQZSigKk6xIDYQK8T2Nh/x+11i2i5LkCethCQOqPdVsAKjgN1z jxO4EE3nHIpKg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6BB2BC021A6; Thu, 13 Feb 2025 15:59:14 +0000 (UTC) From: Tobias Sperling via B4 Relay Date: Thu, 13 Feb 2025 16:58:57 +0100 Subject: [PATCH v4 1/2] dt-bindings: iio: adc: Introduce ADS7138 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250213-adc_ml-v4-1-66b68f8fdb8c@softing.com> References: <20250213-adc_ml-v4-0-66b68f8fdb8c@softing.com> In-Reply-To: <20250213-adc_ml-v4-0-66b68f8fdb8c@softing.com> To: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Tobias Sperling , Liam Girdwood , Mark Brown Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.15-dev-355e8 X-Developer-Signature: v=1; a=ed25519-sha256; t=1739462353; l=2588; i=tobias.sperling@softing.com; s=20241122; h=from:subject:message-id; bh=g1zfSLm9Map0BpGfvjWMEymgbGpQOBRGtMWcObulW84=; b=vyNYPdaJbiGBAQlZe7ygvRLI3eogMUOgxpf1tA7WFMcMbTbkRCi6pTNyQ2RmeSY+naMtqR36l CxvEvJFhWMECRFm5KR6mydLdPk2WDuq8psnuFpmYPQ29hAsZsa8XnGC X-Developer-Key: i=tobias.sperling@softing.com; a=ed25519; pk=v7hgaMHsrA9ul4UXkBVUuwusS9PF3uHW/CC+gABI65E= X-Endpoint-Received: by B4 Relay for tobias.sperling@softing.com/20241122 with auth_id=281 X-Original-From: Tobias Sperling Reply-To: tobias.sperling@softing.com From: Tobias Sperling Add documentation for the driver of ADS7128 and ADS7138 12-bit, 8-channel analog-to-digital converters. These ADCs have a wide operating range and a wide feature set. Communication is based on the I2C interface. ADS7128 differs in the addition of further hardware features, like a root-mean-square (RMS) and a zero-crossing-detect (ZCD) module. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Tobias Sperling --- .../devicetree/bindings/iio/adc/ti,ads7138.yaml | 63 ++++++++++++++++++++++ 1 file changed, 63 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads7138.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads7138.yaml new file mode 100644 index 0000000000000000000000000000000000000000..a51893e207d4047fe915e87c4be9caa732c45465 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/ti,ads7138.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/ti,ads7138.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments ADS7128/ADS7138 analog-to-digital converter (ADC) + +maintainers: + - Tobias Sperling + +description: | + The ADS7128 and ADS7138 chips are 12-bit, 8 channel analog-to-digital + converters (ADC) with build-in digital window comparator (DWC), using the + I2C interface. + ADS7128 differs in the addition of further hardware features, like a + root-mean-square (RMS) and a zero-crossing-detect (ZCD) module. + + Datasheets: + https://www.ti.com/product/ADS7128 + https://www.ti.com/product/ADS7138 + +properties: + compatible: + enum: + - ti,ads7128 + - ti,ads7138 + + reg: + maxItems: 1 + + avdd-supply: + description: + The regulator used as analog supply voltage as well as reference voltage. + + interrupts: + description: + Interrupt on ALERT pin, triggers on low level. + maxItems: 1 + +required: + - compatible + - reg + - avdd-supply + +additionalProperties: false + +examples: + - | + #include + i2c { + #address-cells = <1>; + #size-cells = <0>; + + adc@10 { + compatible = "ti,ads7138"; + reg = <0x10>; + avdd-supply = <®_stb_3v3>; + interrupt-parent = <&gpio2>; + interrupts = <12 IRQ_TYPE_LEVEL_LOW>; + }; + }; +...