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| author | Rodrigo Alencar <rodrigo.alencar@analog.com> | 2026-06-28 15:08:08 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2026-06-30 00:39:50 +0100 |
| commit | e99f2ceb8a571920c43291fab1225b6575e4c377 (patch) | |
| tree | 4318aee859656cfb668fd308a8a4772324f54dcb | |
| parent | d68399de723fcedfad97702d1083dda7ff4df8e9 (diff) | |
| download | linux-stable-e99f2ceb8a571920c43291fab1225b6575e4c377.tar.gz linux-stable-e99f2ceb8a571920c43291fab1225b6575e4c377.zip | |
dt-bindings: iio: dac: ad5696: add reset/ldac/gain support
Add GPIO property for RESET, LDAC and GAIN pin. RESET is active-low, LDAC
is used to load DAC channels with values from input registers and GAIN
can double the voltage in output channels. The gain-gpios property is
not available to all supported parts. The adi,range-double property
indicates that GAIN pin is hardwired to high in case gain-gpios is not
set, otherwise it sets the initial value for the gain setting.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml index b5a88b03dc2f..cc343cdf6085 100644 --- a/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5696.yaml @@ -37,14 +37,52 @@ properties: description: | The regulator supply for DAC reference voltage. + reset-gpios: + description: Active-low RESET pin to reset the device. + maxItems: 1 + + ldac-gpios: + description: + Active-low LDAC pin used to asynchronously update the DAC channels. + maxItems: 1 + + gain-gpios: + description: + GAIN pin that sets a multiplier for the DAC output voltage. When high, + the DAC output voltage is multiplied by 2, otherwise it is unchanged. + maxItems: 1 + + adi,range-double: + description: + Sets the initial voltage output range from 0 to 2xVREF. On devices that + have a GAIN pin and no gain-gpios property is set, this indicates the pin + is hardwired high. + type: boolean + required: - compatible - reg +allOf: + - if: + properties: + compatible: + contains: + enum: + - adi,ad5311r + - adi,ad5691r + - adi,ad5692r + - adi,ad5693 + - adi,ad5693r + then: + properties: + gain-gpios: false + additionalProperties: false examples: - | + #include <dt-bindings/gpio/gpio.h> i2c { #address-cells = <1>; #size-cells = <0>; @@ -53,6 +91,7 @@ examples: compatible = "adi,ad5696"; reg = <0>; vcc-supply = <&dac_vref>; + ldac-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>; }; }; ... |