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-rw-r--r-- | Documentation/devicetree/bindings/iio/dac/mcp4725.txt | 35 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/iio/dac/microchip,mcp4725.yaml | 71 |
2 files changed, 71 insertions, 35 deletions
diff --git a/Documentation/devicetree/bindings/iio/dac/mcp4725.txt b/Documentation/devicetree/bindings/iio/dac/mcp4725.txt deleted file mode 100644 index 1bc6c093fbfe..000000000000 --- a/Documentation/devicetree/bindings/iio/dac/mcp4725.txt +++ /dev/null @@ -1,35 +0,0 @@ -Microchip mcp4725 and mcp4726 DAC device driver - -Required properties: - - compatible: Must be "microchip,mcp4725" or "microchip,mcp4726" - - reg: Should contain the DAC I2C address - - vdd-supply: Phandle to the Vdd power supply. This supply is used as a - voltage reference on mcp4725. It is used as a voltage reference on - mcp4726 if there is no vref-supply specified. - -Optional properties (valid only for mcp4726): - - vref-supply: Optional phandle to the Vref power supply. Vref pin is - used as a voltage reference when this supply is specified. - - microchip,vref-buffered: Boolean to enable buffering of the external - Vref pin. This boolean is not valid without the vref-supply. Quoting - the datasheet: This is offered in cases where the reference voltage - does not have the current capability not to drop its voltage when - connected to the internal resistor ladder circuit. - -Examples: - - /* simple mcp4725 */ - mcp4725@60 { - compatible = "microchip,mcp4725"; - reg = <0x60>; - vdd-supply = <&vdac_vdd>; - }; - - /* mcp4726 with the buffered external reference voltage */ - mcp4726@60 { - compatible = "microchip,mcp4726"; - reg = <0x60>; - vdd-supply = <&vdac_vdd>; - vref-supply = <&vdac_vref>; - microchip,vref-buffered; - }; diff --git a/Documentation/devicetree/bindings/iio/dac/microchip,mcp4725.yaml b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4725.yaml new file mode 100644 index 000000000000..271998610ceb --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4725.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/microchip,mcp4725.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip mcp4725 and mcp4726 DAC + +maintainers: + - Tomas Novotny <tomas@novotny.cz> + +properties: + compatible: + enum: + - microchip,mcp4725 + - microchip,mcp4726 + + reg: + maxItems: 1 + + vdd-supply: + description: | + Provides both power and acts as the reference supply on the mcp4725. + For the mcp4726 it will be used as the reference voltage if vref-supply + is not provided. + + vref-supply: + description: + Vref pin is used as a voltage reference when this supply is specified. + + microchip,vref-buffered: + type: boolean + description: | + Enable buffering of the external Vref pin. This boolean is not valid + without the vref-supply. Quoting the datasheet: This is offered in + cases where the reference voltage does not have the current + capability not to drop its voltage when connected to the internal + resistor ladder circuit. + +allOf: + - if: + not: + properties: + compatible: + contains: + const: microchip,mcp4726 + then: + properties: + vref-supply: false + microchip,vref-buffered: false + +required: + - compatible + - reg + - vdd-supply + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + mcp4725@60 { + compatible = "microchip,mcp4725"; + reg = <0x60>; + vdd-supply = <&vdac_vdd>; + }; + }; +... |