From patchwork Tue Jun 18 16:08:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier Moysan X-Patchwork-Id: 13702586 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) (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 AEBA713BC30; Tue, 18 Jun 2024 16:11:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.132.182.106 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718727080; cv=none; b=OoT9btYjIjA9xTCWzAwNokJW/qpOlPLZmoSmBi6DdNQoifcFd3tm03p2ci7vSU0HzFZHy0zVsUZA1i827Y3kNmjWGHslMS+Gw4sCo9t2Fdd1IAIHazaoOa3Bq7WlwAhls7eBl2wiFSNQvTYBtAOlrPu6X66KzwrwWP2j3b39E2A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718727080; c=relaxed/simple; bh=OixfWHuwr8fk2cZhP8A5Y4L7J7wxqUqTFUVglM0/iZs=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=E1Vcv18pDbMwIJ+ht5anScMI4W+RP047OskoLsJAiDyMHZBc+1FuSUpF77ALMUP4YRluTVkr1Z/X5DIRu56x/tgpXxQrDW9tGvsz90Ei5d1kY3rkYJ6iuy/RQZ+69Lq/toY1jOTJgXi10814qvUOOObmub6i6SwuQtdikhNXIRo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com; spf=pass smtp.mailfrom=foss.st.com; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b=ku5z62w0; arc=none smtp.client-ip=185.132.182.106 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=foss.st.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b="ku5z62w0" Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 45IFe3x4027003; Tue, 18 Jun 2024 18:11:03 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=selector1; bh= XpA+f9bQP61dqrvt0OM80VMLJKM/XB9fUzUgYOfoOkg=; b=ku5z62w0yaQ98uao lOBliKdZgAYwPrvLo5BVwAUxCmthX+MJRz5eHMmtIelgucTH3yF8d5kxBmWnMVc/ 16+AZhBA7VJKlqUG5het3hdUFtLZyy0tw7uoK5WVT58hUdjyG3gLv9sQ4WK9ubEO JOb3PONl/VTuV44uVQN1IBd4OgQxiavkzBfWJ/ooduCCHzss938Lk6N9jOy/z4Bg 6B7LjD12FGX+elaGqL2vc/80j/Z2w3VCJ1GNFlfT5FXbnIOfAc1WE3nB/auHyqUg YC09PxBVe0jspwHh1bTfURXp+4TR+x2yQH/0JfIWdng8FfRF2zJZw+jK8lzH+XvY c7Z4xA== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3ys29y3yky-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 18 Jun 2024 18:11:03 +0200 (MEST) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id A336A40044; Tue, 18 Jun 2024 18:10:59 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 4A6DA21D386; Tue, 18 Jun 2024 18:10:28 +0200 (CEST) Received: from localhost (10.252.27.64) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 18 Jun 2024 18:10:28 +0200 From: Olivier Moysan To: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Olivier Moysan CC: , , Subject: [PATCH 5/8] dt-bindings: iio: add sigma delta modulator backend Date: Tue, 18 Jun 2024 18:08:31 +0200 Message-ID: <20240618160836.945242-6-olivier.moysan@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240618160836.945242-1-olivier.moysan@foss.st.com> References: <20240618160836.945242-1-olivier.moysan@foss.st.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SHFCAS1NODE2.st.com (10.75.129.73) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-18_02,2024-06-17_01,2024-05-17_01 Add documentation of device tree bindings to support sigma delta modulator backend in IIO framework. Signed-off-by: Olivier Moysan --- .../iio/adc/sd-modulator-backend.yaml | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/sd-modulator-backend.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/sd-modulator-backend.yaml b/Documentation/devicetree/bindings/iio/adc/sd-modulator-backend.yaml new file mode 100644 index 000000000000..b0fa71b75cd0 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/sd-modulator-backend.yaml @@ -0,0 +1,43 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/sd-modulator-backend.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sigma delta modulator backend + +maintainers: + - Olivier Moysan + +properties: + compatible: + description: | + "sd-backend" can be used as a generic SD modulator backend, + if the modulator is not specified in the compatible list. + enum: + - sd-backend + - ads1201 + + '#io-backend-cells': + const: 0 + + reg: + maxItems: 1 + + vref-supply: + description: Phandle to the vref input analog reference voltage. + +required: + - compatible + - '#io-backend-cells' + +additionalProperties: false + +examples: + - | + ads1201: adc { + compatible = "sd-backend"; + #io-backend-cells = <0>; + }; + +...