From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) (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 C6E6F2F745D; Wed, 19 Aug 2026 12:41:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.153.233 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787143297; cv=none; b=Gy2PMsw85m6/i+edLLMvzNcORK5YgrrIemi0vn0Shg53iGSkuFlzczBuJPrzRDwD0vGpQos+IPLGizK2OcMJ0pmo5T+dzGYLNctkEeogx/ZnmpO5YqhGNJ0HTrgdmcp5z6iph/AoaMCfCne/Ix9ivU5qfhk7SPvYwnNAxBashrE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787143297; c=relaxed/simple; bh=acUL/CcC7KE1IDiRXLEfBcTJXBXILIApK2E6Dz8MP1c=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=pSWGOYRMC5V0RY5pHuE+Ju9eRP0azdjYFVcC7zloWh4bp27rz1rOzR3C941+ae+koR0QIVyByvsXT0IT5NlKvLvxHvFtP2bJzgajrKCZXmFmkWhfgxMGFNWz/NaktY5Zvx9hqxJQzv8muYsnABz3X/Cx6wwmMMU6+cRy0iA+p30= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=yjrvEW0P; arc=none smtp.client-ip=68.232.153.233 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="yjrvEW0P" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1787143295; x=1818679295; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=acUL/CcC7KE1IDiRXLEfBcTJXBXILIApK2E6Dz8MP1c=; b=yjrvEW0PETvDN2EGF7GsDRdgJiWlUWKV9Eb5tMP/AZ1f3+Tu2jtM1quh rFT3KpORsJ9AXs9YIXSQPh1t5r+A7GKRKXb9FQ2DctEanjK7oP7KbOLO9 GmyUr+gnzPzuymqXhNBH9EsNIMJG8BF6PKzYrZzdZXpIJSiLSMeun/vtg LZFEIDpRTKeg+jNHEZYWx8yGt9BOndLTHLdeVJsbN4l3r+0UxhDqxYLMb mwKJxquZYZExuATVLSrZcPtmOOuSwSrojEdEOQj8PT5nFp00rQLLc51qJ kJHv35Y/NaT4vUtJqu0dRWuw8324297Q4eXQ+LDO6aill/SKoxKBKQrrX A==; X-CSE-ConnectionGUID: yHeFoOd0RM6KFd1XKnraEg== X-CSE-MsgGUID: uwYFjvJ+SMmG6vXDa1HH1A== X-IronPort-AV: E=Sophos;i="6.25,231,1779174000"; d="scan'208";a="72095627" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 19 Aug 2026 05:41:35 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.58; Wed, 19 Aug 2026 05:41:34 -0700 Received: from [127.0.1.1] (10.10.85.11) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Wed, 19 Aug 2026 05:41:32 -0700 From: Ariana Lazar Date: Wed, 19 Aug 2026 15:41:12 +0300 Subject: [PATCH v4 8/9] dt-bindings: iio: dac: add support for MCP48FEB02 SPI Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-ID: <20260819-mcp47feb02_refactor-v4-8-beb2aa3bfd09@microchip.com> References: <20260819-mcp47feb02_refactor-v4-0-beb2aa3bfd09@microchip.com> In-Reply-To: <20260819-mcp47feb02_refactor-v4-0-beb2aa3bfd09@microchip.com> To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , "Andy Shevchenko" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley CC: , , , Ariana Lazar X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1787143269; l=15556; i=ariana.lazar@microchip.com; s=20250825; h=from:subject:message-id; bh=acUL/CcC7KE1IDiRXLEfBcTJXBXILIApK2E6Dz8MP1c=; b=XloJX+9KyY6O/tAXq6A1DGJoz5PC2iBI/bu9HtUBgau1ofT7r/zsfPDzw+PI1NUHGwVco5sF5 tRIWjy67J7HAAP5fLcuZVAu6q7TiI0RENU9E6imt4Deg6w/S6rx7jyW X-Developer-Key: i=ariana.lazar@microchip.com; a=ed25519; pk=jmvf1fSxcnzZmXfITM3L94IwutM+wqA1POQHiYyD6Dk= Add the SPI MCP48FxBy1/2/4/8 part numbers, the spi-max-frequency property and a devicetree example for SPI usage to the existing binding. Signed-off-by: Ariana Lazar Reviewed-by: Rob Herring (Arm) --- .../bindings/iio/dac/microchip,mcp47feb02.yaml | 221 ++++++++++++++++----- 1 file changed, 173 insertions(+), 48 deletions(-) diff --git a/Documentation/devicetree/bindings/iio/dac/microchip,mcp47feb02.yaml b/Documentation/devicetree/bindings/iio/dac/microchip,mcp47feb02.yaml index d131f136bd15161666932261bcacd6d124b23ede..a86d094f0d4b54f9d9cc39fd54222f5968714668 100644 --- a/Documentation/devicetree/bindings/iio/dac/microchip,mcp47feb02.yaml +++ b/Documentation/devicetree/bindings/iio/dac/microchip,mcp47feb02.yaml @@ -4,58 +4,92 @@ $id: http://devicetree.org/schemas/iio/dac/microchip,mcp47feb02.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Microchip MCP47F(E/V)B(0/1/2)(1/2/4/8) DAC with I2C Interface Families +title: Microchip MCP4(7/8)F(E/V)B(0/1/2)(1/2/4/8) DAC with I2C/SPI Interface Families maintainers: - Ariana Lazar description: | - Datasheet for MCP47FEB01, MCP47FEB11, MCP47FEB21, MCP47FEB02, MCP47FEB12, - MCP47FEB22 can be found here: - https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/20005375A.pdf - Datasheet for MCP47FVB01, MCP47FVB11, MCP47FVB21, MCP47FVB02, MCP47FVB12, - MCP47FVB22 can be found here: - https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/20005405A.pdf - Datasheet for MCP47FEB04, MCP47FEB14, MCP47FEB24, MCP47FEB08, MCP47FEB18, - MCP47FEB28, MCP47FVB04, MCP47FVB14, MCP47FVB24, MCP47FVB08, MCP47FVB18, - MCP47FVB28 can be found here: - https://ww1.microchip.com/downloads/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/MCP47FXBX48-Data-Sheet-DS200006368A.pdf - - +------------+--------------+-------------+-------------+------------+ - | Device | Resolution | Channels | Vref number | Memory | - |------------|--------------|-------------|-------------|------------| - | MCP47FEB01 | 8-bit | 1 | 1 | EEPROM | - | MCP47FEB11 | 10-bit | 1 | 1 | EEPROM | - | MCP47FEB21 | 12-bit | 1 | 1 | EEPROM | - |------------|--------------|-------------|-------------|------------| - | MCP47FEB02 | 8-bit | 2 | 1 | EEPROM | - | MCP47FEB12 | 10-bit | 2 | 1 | EEPROM | - | MCP47FEB22 | 12-bit | 2 | 1 | EEPROM | - |------------|--------------|-------------|-------------|------------| - | MCP47FVB01 | 8-bit | 1 | 1 | RAM | - | MCP47FVB11 | 10-bit | 1 | 1 | RAM | - | MCP47FVB21 | 12-bit | 1 | 1 | RAM | - |------------|--------------|-------------|-------------|------------| - | MCP47FVB02 | 8-bit | 2 | 1 | RAM | - | MCP47FVB12 | 10-bit | 2 | 1 | RAM | - | MCP47FVB22 | 12-bit | 2 | 1 | RAM | - |------------|--------------|-------------|-------------|------------| - | MCP47FVB04 | 8-bit | 4 | 2 | RAM | - | MCP47FVB14 | 10-bit | 4 | 2 | RAM | - | MCP47FVB24 | 12-bit | 4 | 2 | RAM | - |------------|--------------|-------------|-------------|------------| - | MCP47FVB08 | 8-bit | 8 | 2 | RAM | - | MCP47FVB18 | 10-bit | 8 | 2 | RAM | - | MCP47FVB28 | 12-bit | 8 | 2 | RAM | - |------------|--------------|-------------|-------------|------------| - | MCP47FEB04 | 8-bit | 4 | 2 | EEPROM | - | MCP47FEB14 | 10-bit | 4 | 2 | EEPROM | - | MCP47FEB24 | 12-bit | 4 | 2 | EEPROM | - |------------|--------------|-------------|-------------|------------| - | MCP47FEB08 | 8-bit | 8 | 2 | EEPROM | - | MCP47FEB18 | 10-bit | 8 | 2 | EEPROM | - | MCP47FEB28 | 12-bit | 8 | 2 | EEPROM | - +------------+--------------+-------------+-------------+------------+ + Datasheets for MCP47F(E/V)B(0/1/2)(1/2/4/8) DAC with I2C Interface Families: + Datasheet for MCP47FEB01, MCP47FEB02, MCP47FEB11, MCP47FEB12, MCP47FEB21, + MCP47FEB22 can be found here: + https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/20005375A.pdf + Datasheet for MCP47FVB01, MCP47FVB02, MCP47FVB11, MCP47FVB12, MCP47FVB21, + MCP47FVB22 can be found here: + https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/20005405A.pdf + Datasheet for MCP47FEB04, MCP47FEB08, MCP47FEB14, MCP47FEB18, MCP47FEB24, + MCP47FEB28, MCP47FVB04, MCP47FVB08, MCP47FVB14, MCP47FVB18, MCP47FVB24, + MCP47FVB28 can be found here: + https://ww1.microchip.com/downloads/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/MCP47FXBX48-Data-Sheet-DS200006368A.pdf + Datasheets for MCP48F(E/V)B(0/1/2)(1/2/4/8) DAC with SPI Interface Families: + Datasheet for MCP48FEB01, MCP48FEB02, MCP48FEB11, MCP48FEB12, MCP48FEB21, + MCP48FEB22 can be found here: + https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/20005429B.pdf + Datasheet for MCP48FVB01, MCP48FVB02, MCP48FVB11, MCP48FVB12, MCP48FVB21, + MCP48FVB22 can be found here: + https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/20005466A.pdf + Datasheet for MCP48FEB04, MCP48FEB14, MCP48FEB24, MCP48FEB08, MCP48FEB18, + MCP48FEB28, MCP48FVB04, MCP48FVB14, MCP48FVB24, MCP48FVB08, MCP48FVB18, + MCP48FVB28 can be found here: + https://ww1.microchip.com/downloads/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/MCP48FXBX4-8-Family-Data-Sheet-DS20006362A.pdf + + +------------+--------------+-------------+-------------+------------+------------+ + | Device | Resolution | Channels | Vref number | Memory | Interface | + |------------|--------------|-------------|-------------|------------|------------| + | MCP47FEB01 | | 1 | 1 | EEPROM | I2C | + | MCP47FEB02 | | 2 | 1 | EEPROM | I2C | + | MCP47FEB04 | | 4 | 2 | EEPROM | I2C | + | MCP47FEB08 | 8-bit | 8 | 2 | EEPROM | I2C | + | MCP48FEB01 | | 1 | 1 | EEPROM | SPI | + | MCP48FEB02 | | 2 | 1 | EEPROM | SPI | + | MCP48FEB04 | | 4 | 2 | EEPROM | SPI | + | MCP48FEB08 | | 8 | 2 | EEPROM | SPI | + |------------|--------------|-------------|-------------|------------|------------| + | MCP47FEB11 | | 1 | 1 | EEPROM | I2C | + | MCP47FEB12 | | 2 | 1 | EEPROM | I2C | + | MCP47FEB14 | | 4 | 2 | EEPROM | I2C | + | MCP47FEB18 | 10-bit | 8 | 2 | EEPROM | I2C | + | MCP48FEB11 | | 1 | 1 | EEPROM | SPI | + | MCP48FEB12 | | 2 | 1 | EEPROM | SPI | + | MCP48FEB14 | | 4 | 2 | EEPROM | SPI | + | MCP48FEB18 | | 8 | 2 | EEPROM | SPI | + |------------|--------------|-------------|-------------|------------|------------| + | MCP47FEB21 | | 1 | 1 | EEPROM | I2C | + | MCP47FEB22 | | 2 | 1 | EEPROM | I2C | + | MCP47FEB24 | | 4 | 2 | EEPROM | I2C | + | MCP47FEB28 | 12-bit | 8 | 2 | EEPROM | I2C | + | MCP48FEB21 | | 1 | 1 | EEPROM | SPI | + | MCP48FEB22 | | 2 | 1 | EEPROM | SPI | + | MCP48FEB24 | | 4 | 2 | EEPROM | SPI | + | MCP48FEB28 | | 8 | 2 | EEPROM | SPI | + |------------|--------------|-------------|-------------|------------|------------| + | MCP47FVB01 | | 1 | 1 | RAM | I2C | + | MCP47FVB02 | | 2 | 1 | RAM | I2C | + | MCP47FVB04 | | 4 | 2 | RAM | I2C | + | MCP47FVB08 | 8-bit | 8 | 2 | RAM | I2C | + | MCP48FVB01 | | 1 | 1 | RAM | SPI | + | MCP48FVB02 | | 2 | 1 | RAM | SPI | + | MCP48FVB04 | | 4 | 2 | RAM | SPI | + | MCP48FVB08 | | 8 | 2 | RAM | SPI | + |------------|--------------|-------------|-------------|------------|------------| + | MCP47FVB11 | | 1 | 1 | RAM | I2C | + | MCP47FVB12 | | 2 | 1 | RAM | I2C | + | MCP47FVB14 | | 4 | 2 | RAM | I2C | + | MCP47FVB18 | 10-bit | 8 | 2 | RAM | I2C | + | MCP48FVB11 | | 1 | 1 | RAM | SPI | + | MCP48FVB12 | | 2 | 1 | RAM | SPI | + | MCP48FVB14 | | 4 | 2 | RAM | SPI | + | MCP48FVB18 | | 8 | 2 | RAM | SPI | + |------------|--------------|-------------|-------------|------------|------------| + | MCP47FVB21 | | 1 | 1 | RAM | I2C | + | MCP47FVB22 | | 2 | 1 | RAM | I2C | + | MCP47FVB24 | | 4 | 2 | RAM | I2C | + | MCP47FVB28 | 12-bit | 8 | 2 | RAM | I2C | + | MCP48FVB21 | | 1 | 1 | RAM | SPI | + | MCP48FVB22 | | 2 | 1 | RAM | SPI | + | MCP48FVB24 | | 4 | 2 | RAM | SPI | + | MCP48FVB28 | | 8 | 2 | RAM | SPI | + +------------+--------------+-------------+-------------+------------+------------+ properties: compatible: @@ -84,10 +118,37 @@ properties: - microchip,mcp47feb08 - microchip,mcp47feb18 - microchip,mcp47feb28 + - microchip,mcp48feb01 + - microchip,mcp48feb02 + - microchip,mcp48feb04 + - microchip,mcp48feb08 + - microchip,mcp48feb11 + - microchip,mcp48feb12 + - microchip,mcp48feb14 + - microchip,mcp48feb18 + - microchip,mcp48feb21 + - microchip,mcp48feb22 + - microchip,mcp48feb24 + - microchip,mcp48feb28 + - microchip,mcp48fvb01 + - microchip,mcp48fvb02 + - microchip,mcp48fvb04 + - microchip,mcp48fvb08 + - microchip,mcp48fvb11 + - microchip,mcp48fvb12 + - microchip,mcp48fvb14 + - microchip,mcp48fvb18 + - microchip,mcp48fvb21 + - microchip,mcp48fvb22 + - microchip,mcp48fvb24 + - microchip,mcp48fvb28 reg: maxItems: 1 + spi-max-frequency: + maximum: 10000000 + "#address-cells": const: 1 @@ -178,6 +239,21 @@ required: - vdd-supply allOf: + - if: + properties: + compatible: + contains: + pattern: "^microchip,mcp48f[ev]b[0-2][1248]$" + then: + $ref: /schemas/spi/spi-peripheral-props.yaml# + dependencies: + spi-cpha: [ spi-cpol ] + spi-cpol: [ spi-cpha ] + else: + properties: + spi-max-frequency: false + spi-cpha: false + spi-cpol: false - if: properties: compatible: @@ -189,6 +265,12 @@ allOf: - microchip,mcp47fvb01 - microchip,mcp47fvb11 - microchip,mcp47fvb21 + - microchip,mcp48feb01 + - microchip,mcp48feb11 + - microchip,mcp48feb21 + - microchip,mcp48fvb01 + - microchip,mcp48fvb11 + - microchip,mcp48fvb21 then: properties: lat1-gpios: false @@ -211,6 +293,12 @@ allOf: - microchip,mcp47fvb02 - microchip,mcp47fvb12 - microchip,mcp47fvb22 + - microchip,mcp48feb02 + - microchip,mcp48feb12 + - microchip,mcp48feb22 + - microchip,mcp48fvb02 + - microchip,mcp48fvb12 + - microchip,mcp48fvb22 then: properties: lat1-gpios: false @@ -233,6 +321,12 @@ allOf: - microchip,mcp47feb04 - microchip,mcp47feb14 - microchip,mcp47feb24 + - microchip,mcp48feb04 + - microchip,mcp48feb14 + - microchip,mcp48feb24 + - microchip,mcp48fvb04 + - microchip,mcp48fvb14 + - microchip,mcp48fvb24 then: patternProperties: "^channel@[0-3]$": @@ -251,6 +345,12 @@ allOf: - microchip,mcp47feb08 - microchip,mcp47feb18 - microchip,mcp47feb28 + - microchip,mcp48feb08 + - microchip,mcp48feb18 + - microchip,mcp48feb28 + - microchip,mcp48fvb08 + - microchip,mcp48fvb18 + - microchip,mcp48fvb28 then: patternProperties: "^channel@[0-7]$": @@ -272,7 +372,7 @@ allOf: properties: microchip,vref1-buffered: false -additionalProperties: false +unevaluatedProperties: false examples: - | @@ -299,4 +399,29 @@ examples: }; }; }; + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + dac@0 { + compatible = "microchip,mcp48feb02"; + reg = <0x0>; + vdd-supply = <&vdac_vdd>; + vref-supply = <&vref_reg>; + spi-max-frequency = <10000000>; + + #address-cells = <1>; + #size-cells = <0>; + channel@0 { + reg = <0>; + label = "Adjustable_voltage_ch0"; + }; + + channel@1 { + reg = <0x1>; + label = "Adjustable_voltage_ch1"; + }; + }; + }; ... -- 2.43.0