From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 35C7647F57 for ; Sun, 17 Dec 2023 18:11:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="T09MyNun" Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id D0BAC81991 for ; Sun, 17 Dec 2023 18:11:11 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org D0BAC81991 Authentication-Results: smtp1.osuosl.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20230601 header.b=T09MyNun X-Virus-Scanned: amavisd-new at osuosl.org X-Spam-Flag: NO X-Spam-Score: -2.099 X-Spam-Level: Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CMRBz477s7Kh for ; Sun, 17 Dec 2023 18:11:09 +0000 (UTC) Received: from mail-oi1-x22d.google.com (mail-oi1-x22d.google.com [IPv6:2607:f8b0:4864:20::22d]) by smtp1.osuosl.org (Postfix) with ESMTPS id 956DD817EB for ; Sun, 17 Dec 2023 18:11:09 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org 956DD817EB Received: by mail-oi1-x22d.google.com with SMTP id 5614622812f47-3ba10647a19so1922699b6e.3 for ; Sun, 17 Dec 2023 10:11:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702836668; x=1703441468; darn=lists.linuxfoundation.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=WKKLVdjbJtf3sQ1BSlJm02odVYdtxAJaGyP069MKh0M=; b=T09MyNunRHaz27GXBnApntOKxqOoHjDI6UhYTlUrH3cTgQjfoS3b4ACK8+fSPs/v0O vOHAqr+25Mlf1V3B+kD+9PlVFM/RRdaBQilCI4spS/yLK0sqm60xb9nQnjudNo6SHkgF CNmXRW17dxmXis4Jusq9EJO0jZWTdQIaTZ5vSvYJ49NnSc+pLVknr225GaA2HXuv/V8/ IFB9P4klJgUXZ5CLV06dF99XAZXii6iGxYjTiw39Jw38l7G2GPNQm3KoMj+iZL+mQtgn hPOhIfjmEH9SooovINWc9Z80xR978k6gqcJyQpug8fI+ntzBApS4FKSF8EOcIR0yxesc UOEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702836668; x=1703441468; 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=WKKLVdjbJtf3sQ1BSlJm02odVYdtxAJaGyP069MKh0M=; b=ojx2GcaVZ5szkvxxkOEdSA17W8FWadn4I19TRfzaAOlFAx0zDh3APl4kgKcU8qgFGw /Q/48FzBhICfvIpJ6ZJb+WwPAT4WlKV0G3AVC70s+pyar9YKTEsPhMC8Z31/Cq3df5wR aL8pmV/6M42q3yJUxX5jo5+eqNwi9kHYNtvksDcWTWbPc01jTxCr54GhPdAL7a1PnGqI S0x4+KsT1JGHo5akBgbBZdlF+YVf9xEz50/BlJf6Y4t72DveRHmHZWNrIRqVybVkg8Qb MKV1RLXRO1Q8p7/u8tLoNlNjCjbFtibYgSpMqbUUOMES1ZwwD5rnkFQCtZglSAe6KRx3 Wu4w== X-Gm-Message-State: AOJu0YxXNsvia6cYkXVAQL6dofRTp5iO9O7SMvUHLm0lzuCWj7st0jON NlLsKakX8Mrv9ZPqDAjP8RI= X-Google-Smtp-Source: AGHT+IGHeqDf3X7JsCZYd7wwSmT66FvjOXVf5TUGRmXNe28TjZl7jB0syB6a/79DCmRSIAFZ6eRx5A== X-Received: by 2002:a05:6808:13c3:b0:3b9:fc7c:b57d with SMTP id d3-20020a05680813c300b003b9fc7cb57dmr18542453oiw.35.1702836668530; Sun, 17 Dec 2023 10:11:08 -0800 (PST) Received: from localhost.localdomain ([2401:4900:581e:798e:871c:98db:5638:a4]) by smtp.gmail.com with ESMTPSA id d18-20020aa78692000000b006bdd7cbcf98sm16761286pfo.182.2023.12.17.10.11.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Dec 2023 10:11:08 -0800 (PST) From: Anshul Dalal To: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, Jonathan Cameron , devicetree@vger.kernel.org Cc: Anshul Dalal , Conor Dooley , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , linux-kernel-mentees@lists.linuxfoundation.org, Shuah Khan , Conor Dooley Subject: [PATCH v2 1/2] dt-bindings: iio: dac: add MCP4821 Date: Sun, 17 Dec 2023 23:38:33 +0530 Message-ID: <20231217180836.584828-1-anshulusr@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel-mentees@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Adds support for MCP48xx series of DACs. Datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/22244B.pdf #MCP48x1 Datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/20002249B.pdf #MCP48x2 Reviewed-by: Conor Dooley Signed-off-by: Anshul Dalal --- Changes for v2: - Changed order in device table to numerical - Made vdd_supply required - Added 'Reviewed-by: Conor Dooley' Previous versions: v1: https://lore.kernel.org/lkml/20231117073040.685860-1-anshulusr@gmail.com/ --- .../bindings/iio/dac/microchip,mcp4821.yaml | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/dac/microchip,mcp4821.yaml diff --git a/Documentation/devicetree/bindings/iio/dac/microchip,mcp4821.yaml b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4821.yaml new file mode 100644 index 000000000000..97da9f9ef450 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4821.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/microchip,mcp4821.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip MCP4821 and similar DACs + +description: | + Supports MCP48x1 (single channel) and MCP48x2 (dual channel) series of DACs. + Device supports simplex communication over SPI in Mode 0,1 and Mode 1,1. + + +---------+--------------+-------------+ + | Device | Resolution | Channels | + |---------|--------------|-------------| + | MCP4801 | 8-bit | 1 | + | MCP4802 | 8-bit | 2 | + | MCP4811 | 10-bit | 1 | + | MCP4812 | 10-bit | 2 | + | MCP4821 | 12-bit | 1 | + | MCP4822 | 12-bit | 2 | + +---------+--------------+-------------+ + + Datasheet: + MCP48x1: https://ww1.microchip.com/downloads/en/DeviceDoc/22244B.pdf + MCP48x2: https://ww1.microchip.com/downloads/en/DeviceDoc/20002249B.pdf + +maintainers: + - Anshul Dalal + +properties: + compatible: + enum: + - microchip,mcp4801 + - microchip,mcp4802 + - microchip,mcp4811 + - microchip,mcp4812 + - microchip,mcp4821 + - microchip,mcp4822 + + reg: + maxItems: 1 + + vdd-supply: true + +required: + - compatible + - reg + - vdd-supply + +additionalProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "microchip,mcp4821"; + reg = <0>; + vdd-supply = <&vdd_regulator>; + }; + }; -- 2.43.0