| # 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>; |
| }; |
| }; |
| ... |
