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dt-bindings: ROHM BD79124 ADC/GPO

Add binding document for the ROHM BD79124 ADC / GPO.

ROHM BD79124 is a 8-channel, 12-bit ADC. The input pins can also be used
as general purpose outputs.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/e16f54b6214b0d796216729a7e29b8f7be9ae19e.1742560649.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

authored by

Matti Vaittinen and committed by
Jonathan Cameron 4a135e92 9016776f

+114
+114
Documentation/devicetree/bindings/iio/adc/rohm,bd79124.yaml
··· 1 + # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2 + %YAML 1.2 3 + --- 4 + $id: http://devicetree.org/schemas/iio/adc/rohm,bd79124.yaml# 5 + $schema: http://devicetree.org/meta-schemas/core.yaml# 6 + 7 + title: ROHM BD79124 ADC/GPO 8 + 9 + maintainers: 10 + - Matti Vaittinen <mazziesaccount@gmail.com> 11 + 12 + description: | 13 + The ROHM BD79124 is a 12-bit, 8-channel, SAR ADC. The ADC supports 14 + an automatic measurement mode, with an alarm interrupt for out-of-window 15 + measurements. ADC input pins can be also configured as general purpose 16 + outputs. 17 + 18 + properties: 19 + compatible: 20 + const: rohm,bd79124 21 + 22 + reg: 23 + description: 24 + I2C slave address. 25 + maxItems: 1 26 + 27 + interrupts: 28 + maxItems: 1 29 + 30 + gpio-controller: true 31 + 32 + "#gpio-cells": 33 + const: 1 34 + description: 35 + The pin number. 36 + 37 + vdd-supply: true 38 + 39 + iovdd-supply: true 40 + 41 + "#address-cells": 42 + const: 1 43 + 44 + "#size-cells": 45 + const: 0 46 + 47 + patternProperties: 48 + "^channel@[0-7]+$": 49 + type: object 50 + $ref: /schemas/iio/adc/adc.yaml# 51 + description: Represents ADC channel. 52 + 53 + properties: 54 + reg: 55 + description: AIN pin number 56 + minimum: 0 57 + maximum: 7 58 + 59 + required: 60 + - reg 61 + 62 + additionalProperties: false 63 + 64 + required: 65 + - compatible 66 + - reg 67 + - iovdd-supply 68 + - vdd-supply 69 + 70 + additionalProperties: false 71 + 72 + examples: 73 + - | 74 + #include <dt-bindings/interrupt-controller/irq.h> 75 + #include <dt-bindings/leds/common.h> 76 + i2c { 77 + #address-cells = <1>; 78 + #size-cells = <0>; 79 + adc: adc@10 { 80 + compatible = "rohm,bd79124"; 81 + reg = <0x10>; 82 + 83 + interrupt-parent = <&gpio1>; 84 + interrupts = <29 8>; 85 + 86 + vdd-supply = <&dummyreg>; 87 + iovdd-supply = <&dummyreg>; 88 + 89 + #address-cells = <1>; 90 + #size-cells = <0>; 91 + 92 + channel@0 { 93 + reg = <0>; 94 + }; 95 + channel@1 { 96 + reg = <1>; 97 + }; 98 + channel@2 { 99 + reg = <2>; 100 + }; 101 + channel@3 { 102 + reg = <3>; 103 + }; 104 + channel@4 { 105 + reg = <4>; 106 + }; 107 + channel@5 { 108 + reg = <5>; 109 + }; 110 + channel@6 { 111 + reg = <6>; 112 + }; 113 + }; 114 + };