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+# 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>;
+ };
+ };
The Renesas X9250 is a quad digitally controlled potentiometers. Signed-off-by: Herve Codina <herve.codina@bootlin.com> --- .../iio/potentiometer/renesas,x9250.yaml | 78 +++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/potentiometer/renesas,x9250.yaml