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| author | Herve Codina <herve.codina@bootlin.com> | 2023-05-09 18:08:50 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2023-05-13 19:29:04 +0100 |
| commit | dd731888d1e0ee93af2daca5e545d5a58c45119b (patch) | |
| tree | f2a8a2d7469994c31b06cd29b5d9cd02752713f8 /Documentation | |
| parent | 23cf1846f4395c61e2dd4309a344e937689702fd (diff) | |
| download | linux-stable-dd731888d1e0ee93af2daca5e545d5a58c45119b.tar.gz linux-stable-dd731888d1e0ee93af2daca5e545d5a58c45119b.tar.bz2 linux-stable-dd731888d1e0ee93af2daca5e545d5a58c45119b.zip | |
dt-bindings: iio: potentiometer: Add the Renesas X9250 potentiometers
The Renesas X9250 is a quad digitally controlled potentiometers.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230509160852.158101-2-herve.codina@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/potentiometer/renesas,x9250.yaml | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/renesas,x9250.yaml b/Documentation/devicetree/bindings/iio/potentiometer/renesas,x9250.yaml new file mode 100644 index 000000000000..ab5c09c00ff4 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/potentiometer/renesas,x9250.yaml @@ -0,0 +1,78 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/potentiometer/renesas,x9250.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas X9250 quad potentiometers + +maintainers: + - Herve Codina <herve.codina@bootlin.com> + +description: + The Renesas X9250 integrates four digitally controlled potentiometers. + On each potentiometer, the X9250T has a 100 kOhms total resistance and the + X9250U has a 50 kOhms total resistance. + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml + +properties: + compatible: + enum: + - renesas,x9250t + - renesas,x9250u + + reg: + maxItems: 1 + + vcc-supply: + description: + Regulator for the VCC power supply. + + avp-supply: + description: + Regulator for the analog V+ power supply. + + avn-supply: + description: + Regulator for the analog V- power supply. + + '#io-channel-cells': + const: 1 + + spi-max-frequency: + maximum: 2000000 + + wp-gpios: + maxItems: 1 + description: + GPIO connected to the write-protect pin. + +required: + - compatible + - reg + - vcc-supply + - avp-supply + - avn-supply + - '#io-channel-cells' + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + potentiometer@0 { + compatible = "renesas,x9250t"; + reg = <0>; + vcc-supply = <&vcc_regulator>; + avp-supply = <&avp_regulator>; + avn-supply = <&avp_regulator>; + wp-gpios = <&gpio 1 GPIO_ACTIVE_LOW>; + spi-max-frequency = <2000000>; + #io-channel-cells = <1>; + }; + }; |