microchip,mcp4531.yaml

  1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/iio/potentiometer/microchip,mcp4531.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Microchip mcp4531 and similar potentiometers.
  8
  9maintainers:
 10  - Peter Rosin <peda@axentia.se>
 11
 12description: |
 13  Family of I2C digital potentiometer
 14  Datasheets at:
 15  * volatile https://ww1.microchip.com/downloads/en/DeviceDoc/22096b.pdf
 16  * non-volatile https://ww1.microchip.com/downloads/en/DeviceDoc/22107B.pdf
 17  Part numbers as follows: mcp4ABC-XXX where
 18  A =   5 (1 wiper), 6 (2 wipers)
 19  B =   3 (7-bit, volatile), 4 (7-bit, non-volatile),
 20        5 (8-bit, volatile), 6 (8-bit, non-volatile),
 21  C:    1 (potentiometer), 2 (rheostat)
 22  XXX = 502 (5 kOhms), 103 (10 kOhms), 503 (50 kOhms), 104 (100 kOhms)
 23
 24properties:
 25  compatible:
 26    enum:
 27        # Ordering reflects part number + range, so 502 < 103 etc
 28      - microchip,mcp4531-502
 29      - microchip,mcp4531-103
 30      - microchip,mcp4531-503
 31      - microchip,mcp4531-104
 32      - microchip,mcp4532-502
 33      - microchip,mcp4532-103
 34      - microchip,mcp4532-503
 35      - microchip,mcp4532-104
 36      - microchip,mcp4541-502
 37      - microchip,mcp4541-103
 38      - microchip,mcp4541-503
 39      - microchip,mcp4541-104
 40      - microchip,mcp4542-502
 41      - microchip,mcp4542-103
 42      - microchip,mcp4542-503
 43      - microchip,mcp4542-104
 44      - microchip,mcp4551-502
 45      - microchip,mcp4551-103
 46      - microchip,mcp4551-503
 47      - microchip,mcp4551-104
 48      - microchip,mcp4552-502
 49      - microchip,mcp4552-103
 50      - microchip,mcp4552-503
 51      - microchip,mcp4552-104
 52      - microchip,mcp4561-502
 53      - microchip,mcp4561-103
 54      - microchip,mcp4561-503
 55      - microchip,mcp4561-104
 56      - microchip,mcp4562-502
 57      - microchip,mcp4562-103
 58      - microchip,mcp4562-503
 59      - microchip,mcp4562-104
 60      - microchip,mcp4631-502
 61      - microchip,mcp4631-103
 62      - microchip,mcp4631-503
 63      - microchip,mcp4631-104
 64      - microchip,mcp4632-502
 65      - microchip,mcp4632-103
 66      - microchip,mcp4632-503
 67      - microchip,mcp4632-104
 68      - microchip,mcp4641-502
 69      - microchip,mcp4641-103
 70      - microchip,mcp4641-503
 71      - microchip,mcp4641-104
 72      - microchip,mcp4642-502
 73      - microchip,mcp4642-103
 74      - microchip,mcp4642-503
 75      - microchip,mcp4642-104
 76      - microchip,mcp4651-502
 77      - microchip,mcp4651-103
 78      - microchip,mcp4651-503
 79      - microchip,mcp4651-104
 80      - microchip,mcp4652-502
 81      - microchip,mcp4652-103
 82      - microchip,mcp4652-503
 83      - microchip,mcp4652-104
 84      - microchip,mcp4661-502
 85      - microchip,mcp4661-103
 86      - microchip,mcp4661-503
 87      - microchip,mcp4661-104
 88      - microchip,mcp4662-502
 89      - microchip,mcp4662-103
 90      - microchip,mcp4662-503
 91      - microchip,mcp4662-104
 92
 93  reg:
 94    maxItems: 1
 95
 96  "#io-channel-cells":
 97    const: 1
 98
 99required:
100  - compatible
101  - reg
102
103additionalProperties: false
104
105examples:
106  - |
107    i2c {
108        #address-cells = <1>;
109        #size-cells = <0>;
110        dpot: dpot@28 {
111            compatible = "microchip,mcp4651-104";
112            reg = <0x28>;
113            #io-channel-cells = <1>;
114        };
115    };
116...