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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp4531.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/iio/potentiometer/microchip,mcp4531.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Microchip mcp4531 and similar potentiometers.

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maintainers:

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  - Peter Rosin <peda@axentia.se>

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description: |

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  Family of I2C digital potentiometer

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  Datasheets at:

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  * volatile https://ww1.microchip.com/downloads/en/DeviceDoc/22096b.pdf

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  * non-volatile https://ww1.microchip.com/downloads/en/DeviceDoc/22107B.pdf

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  Part numbers as follows: mcp4ABC-XXX where

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  A =   5 (1 wiper), 6 (2 wipers)

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  B =   3 (7-bit, volatile), 4 (7-bit, non-volatile),

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        5 (8-bit, volatile), 6 (8-bit, non-volatile),

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  C:    1 (potentiometer), 2 (rheostat)

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  XXX = 502 (5 kOhms), 103 (10 kOhms), 503 (50 kOhms), 104 (100 kOhms)

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properties:

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  compatible:

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    enum:

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        # Ordering reflects part number + range, so 502 < 103 etc

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      - microchip,mcp4531-502

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      - microchip,mcp4531-103

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      - microchip,mcp4531-503

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      - microchip,mcp4531-104

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      - microchip,mcp4532-502

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      - microchip,mcp4532-103

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      - microchip,mcp4532-503

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      - microchip,mcp4532-104

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      - microchip,mcp4541-502

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      - microchip,mcp4541-103

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      - microchip,mcp4541-503

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      - microchip,mcp4541-104

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      - microchip,mcp4542-502

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      - microchip,mcp4542-103

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      - microchip,mcp4542-503

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      - microchip,mcp4542-104

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      - microchip,mcp4551-502

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      - microchip,mcp4551-103

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      - microchip,mcp4551-503

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      - microchip,mcp4551-104

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      - microchip,mcp4552-502

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      - microchip,mcp4552-103

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      - microchip,mcp4552-503

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      - microchip,mcp4552-104

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      - microchip,mcp4561-502

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      - microchip,mcp4561-103

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      - microchip,mcp4561-503

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      - microchip,mcp4561-104

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      - microchip,mcp4562-502

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      - microchip,mcp4562-103

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      - microchip,mcp4562-503

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      - microchip,mcp4562-104

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      - microchip,mcp4631-502

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      - microchip,mcp4631-103

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      - microchip,mcp4631-503

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      - microchip,mcp4631-104

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      - microchip,mcp4632-502

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      - microchip,mcp4632-103

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      - microchip,mcp4632-503

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      - microchip,mcp4632-104

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      - microchip,mcp4641-502

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      - microchip,mcp4641-103

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      - microchip,mcp4641-503

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      - microchip,mcp4641-104

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      - microchip,mcp4642-502

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      - microchip,mcp4642-103

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      - microchip,mcp4642-503

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      - microchip,mcp4642-104

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      - microchip,mcp4651-502

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      - microchip,mcp4651-103

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      - microchip,mcp4651-503

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      - microchip,mcp4651-104

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      - microchip,mcp4652-502

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      - microchip,mcp4652-103

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      - microchip,mcp4652-503

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      - microchip,mcp4652-104

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      - microchip,mcp4661-502

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      - microchip,mcp4661-103

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      - microchip,mcp4661-503

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      - microchip,mcp4661-104

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      - microchip,mcp4662-502

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      - microchip,mcp4662-103

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      - microchip,mcp4662-503

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      - microchip,mcp4662-104

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  reg:

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    maxItems: 1

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  "#io-channel-cells":

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    const: 1

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required:

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  - compatible

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  - reg

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additionalProperties: false

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examples:

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  - |

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    i2c {

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        #address-cells = <1>;

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        #size-cells = <0>;

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        dpot: dpot@28 {

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            compatible = "microchip,mcp4651-104";

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            reg = <0x28>;

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            #io-channel-cells = <1>;

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        };

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    };

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...

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