[PATCH v3 2/3] dt-bindings: iio: dac: add support for MCP48FEB02 SPI
Ariana Lazar <[email protected]> Tue, 4 Aug 2026 16:29:48 +0300
| Newsgroups | org.kernel.vger.linux-devicetree,org.kernel.vger.linux-iio,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
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 <[email protected]> --- .../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 <[email protected]> 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