# 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 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>; }; }; ...