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linux-7.2.3/Documentation/devicetree/bindings/iio/potentiometer/adi,ad5272.yaml

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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/potentiometer/adi,ad5272.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD5272 digital potentiometer
+
+maintainers:
+  - Phil Reid <preid@electromag.com.au>
+
+description: |
+  Datasheet: https://www.analog.com/en/products/ad5272.html
+
+properties:
+  compatible:
+    enum:
+      - adi,ad5272-020
+      - adi,ad5272-050
+      - adi,ad5272-100
+      - adi,ad5274-020
+      - adi,ad5274-100
+
+  reg:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+    description:
+      Active low signal to the AD5272 RESET input.
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        potentiometer@2f {
+            compatible = "adi,ad5272-020";
+            reg = <0x2f>;
+            reset-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
+        };
+    };
+...

linux-7.2.3/Documentation/devicetree/bindings/iio/potentiometer/max5432.yaml

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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/potentiometer/max5432.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim Integrated MAX5432-MAX5435 Digital Potentiometers
+
+maintainers:
+  - Martin Kaiser <martin@kaiser.cx>
+
+description: |
+  Maxim Integrated MAX5432-MAX5435 Digital Potentiometers connected via I2C
+
+  Datasheet:
+    https://datasheets.maximintegrated.com/en/ds/MAX5432-MAX5435.pdf
+
+properties:
+  compatible:
+    enum:
+      - maxim,max5432
+      - maxim,max5433
+      - maxim,max5434
+      - maxim,max5435
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      max5434@28 {
+        compatible = "maxim,max5434";
+        reg = <0x28>;
+      };
+    };

linux-7.2.3/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp41010.yaml

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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/potentiometer/microchip,mcp41010.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip MCP41010/41050/41100/42010/42050/42100 Digital Potentiometer
+
+maintainers:
+  - Chris Coffey <cmc@babblebit.net>
+
+description: |
+  Datasheet: https://ww1.microchip.com/downloads/en/devicedoc/11195c.pdf
+
+properties:
+  compatible:
+    enum:
+      - microchip,mcp41010
+      - microchip,mcp41050
+      - microchip,mcp41100
+      - microchip,mcp42010
+      - microchip,mcp42050
+      - microchip,mcp42100
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        potentiometer@0 {
+            compatible = "microchip,mcp41010";
+            reg = <0>;
+            spi-max-frequency = <500000>;
+        };
+    };
+...

linux-7.2.3/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp4131.yaml

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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/potentiometer/microchip,mcp4131.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X Digital Potentiometer
+
+maintainers:
+  - Slawomir Stepien <sst@poczta.fm>
+
+properties:
+  compatible:
+    enum:
+      - microchip,mcp4131-103
+      - microchip,mcp4131-104
+      - microchip,mcp4131-502
+      - microchip,mcp4131-503
+      - microchip,mcp4132-103
+      - microchip,mcp4132-104
+      - microchip,mcp4132-502
+      - microchip,mcp4132-503
+      - microchip,mcp4141-103
+      - microchip,mcp4141-104
+      - microchip,mcp4141-502
+      - microchip,mcp4141-503
+      - microchip,mcp4142-103
+      - microchip,mcp4142-104
+      - microchip,mcp4142-502
+      - microchip,mcp4142-503
+      - microchip,mcp4151-103
+      - microchip,mcp4151-104
+      - microchip,mcp4151-502
+      - microchip,mcp4151-503
+      - microchip,mcp4152-103
+      - microchip,mcp4152-104
+      - microchip,mcp4152-502
+      - microchip,mcp4152-503
+      - microchip,mcp4161-103
+      - microchip,mcp4161-104
+      - microchip,mcp4161-502
+      - microchip,mcp4161-503
+      - microchip,mcp4162-103
+      - microchip,mcp4162-104
+      - microchip,mcp4162-502
+      - microchip,mcp4162-503
+      - microchip,mcp4231-103
+      - microchip,mcp4231-104
+      - microchip,mcp4231-502
+      - microchip,mcp4231-503
+      - microchip,mcp4232-103
+      - microchip,mcp4232-104
+      - microchip,mcp4232-502
+      - microchip,mcp4232-503
+      - microchip,mcp4241-103
+      - microchip,mcp4241-104
+      - microchip,mcp4241-502
+      - microchip,mcp4241-503
+      - microchip,mcp4242-103
+      - microchip,mcp4242-104
+      - microchip,mcp4242-502
+      - microchip,mcp4242-503
+      - microchip,mcp4251-103
+      - microchip,mcp4251-104
+      - microchip,mcp4251-502
+      - microchip,mcp4251-503
+      - microchip,mcp4252-103
+      - microchip,mcp4252-104
+      - microchip,mcp4252-502
+      - microchip,mcp4252-503
+      - microchip,mcp4261-103
+      - microchip,mcp4261-104
+      - microchip,mcp4261-502
+      - microchip,mcp4261-503
+      - microchip,mcp4262-103
+      - microchip,mcp4262-104
+      - microchip,mcp4262-502
+      - microchip,mcp4262-503
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        potentiometer@0 {
+            compatible = "microchip,mcp4131-502";
+            reg = <0>;
+            spi-max-frequency = <500000>;
+        };
+    };
+...

linux-7.2.3/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp4531.yaml

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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/potentiometer/microchip,mcp4531.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip mcp4531 and similar potentiometers.
+
+maintainers:
+  - Peter Rosin <peda@axentia.se>
+
+description: |
+  Family of I2C digital potentiometer
+  Datasheets at:
+  * volatile https://ww1.microchip.com/downloads/en/DeviceDoc/22096b.pdf
+  * non-volatile https://ww1.microchip.com/downloads/en/DeviceDoc/22107B.pdf
+  Part numbers as follows: mcp4ABC-XXX where
+  A =   5 (1 wiper), 6 (2 wipers)
+  B =   3 (7-bit, volatile), 4 (7-bit, non-volatile),
+        5 (8-bit, volatile), 6 (8-bit, non-volatile),
+  C:    1 (potentiometer), 2 (rheostat)
+  XXX = 502 (5 kOhms), 103 (10 kOhms), 503 (50 kOhms), 104 (100 kOhms)
+
+properties:
+  compatible:
+    enum:
+        # Ordering reflects part number + range, so 502 < 103 etc
+      - microchip,mcp4531-502
+      - microchip,mcp4531-103
+      - microchip,mcp4531-503
+      - microchip,mcp4531-104
+      - microchip,mcp4532-502
+      - microchip,mcp4532-103
+      - microchip,mcp4532-503
+      - microchip,mcp4532-104
+      - microchip,mcp4541-502
+      - microchip,mcp4541-103
+      - microchip,mcp4541-503
+      - microchip,mcp4541-104
+      - microchip,mcp4542-502
+      - microchip,mcp4542-103
+      - microchip,mcp4542-503
+      - microchip,mcp4542-104
+      - microchip,mcp4551-502
+      - microchip,mcp4551-103
+      - microchip,mcp4551-503
+      - microchip,mcp4551-104
+      - microchip,mcp4552-502
+      - microchip,mcp4552-103
+      - microchip,mcp4552-503
+      - microchip,mcp4552-104
+      - microchip,mcp4561-502
+      - microchip,mcp4561-103
+      - microchip,mcp4561-503
+      - microchip,mcp4561-104
+      - microchip,mcp4562-502
+      - microchip,mcp4562-103
+      - microchip,mcp4562-503
+      - microchip,mcp4562-104
+      - microchip,mcp4631-502
+      - microchip,mcp4631-103
+      - microchip,mcp4631-503
+      - microchip,mcp4631-104
+      - microchip,mcp4632-502
+      - microchip,mcp4632-103
+      - microchip,mcp4632-503
+      - microchip,mcp4632-104
+      - microchip,mcp4641-502
+      - microchip,mcp4641-103
+      - microchip,mcp4641-503
+      - microchip,mcp4641-104
+      - microchip,mcp4642-502
+      - microchip,mcp4642-103
+      - microchip,mcp4642-503
+      - microchip,mcp4642-104
+      - microchip,mcp4651-502
+      - microchip,mcp4651-103
+      - microchip,mcp4651-503
+      - microchip,mcp4651-104
+      - microchip,mcp4652-502
+      - microchip,mcp4652-103
+      - microchip,mcp4652-503
+      - microchip,mcp4652-104
+      - microchip,mcp4661-502
+      - microchip,mcp4661-103
+      - microchip,mcp4661-503
+      - microchip,mcp4661-104
+      - microchip,mcp4662-502
+      - microchip,mcp4662-103
+      - microchip,mcp4662-503
+      - microchip,mcp4662-104
+
+  reg:
+    maxItems: 1
+
+  "#io-channel-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        dpot: dpot@28 {
+            compatible = "microchip,mcp4651-104";
+            reg = <0x28>;
+            #io-channel-cells = <1>;
+        };
+    };
+...

linux-7.2.3/Documentation/devicetree/bindings/iio/potentiometer/renesas,x9250.yaml

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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>;
+        };
+    };