| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/mfd/maxim,max5970.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Regulator for MAX5970 Smart Switch from Maxim Integrated |
| 8 | |
| 9 | maintainers: |
| 10 | - Patrick Rudolph <patrick.rudolph@9elements.com> |
| 11 | |
| 12 | description: | |
| 13 | The smart switch provides no output regulation, but independent fault protection |
| 14 | and voltage and current sensing. |
| 15 | Programming is done through I2C bus. |
| 16 | |
| 17 | Datasheets: |
| 18 | https://datasheets.maximintegrated.com/en/ds/MAX5970.pdf |
| 19 | https://datasheets.maximintegrated.com/en/ds/MAX5978.pdf |
| 20 | |
| 21 | properties: |
| 22 | compatible: |
| 23 | enum: |
| 24 | - maxim,max5970 |
| 25 | - maxim,max5978 |
| 26 | |
| 27 | reg: |
| 28 | maxItems: 1 |
| 29 | |
| 30 | interrupts: |
| 31 | maxItems: 1 |
| 32 | |
| 33 | leds: |
| 34 | type: object |
| 35 | description: |
| 36 | Properties for four LEDS. |
| 37 | |
| 38 | properties: |
| 39 | "#address-cells": |
| 40 | const: 1 |
| 41 | |
| 42 | "#size-cells": |
| 43 | const: 0 |
| 44 | |
| 45 | patternProperties: |
| 46 | "^led@[0-3]$": |
| 47 | $ref: /schemas/leds/common.yaml# |
| 48 | unevaluatedProperties: false |
| 49 | type: object |
| 50 | |
| 51 | properties: |
| 52 | reg: |
| 53 | maximum: 3 |
| 54 | |
| 55 | additionalProperties: false |
| 56 | |
| 57 | vss1-supply: |
| 58 | description: Supply of the first channel. |
| 59 | |
| 60 | vss2-supply: |
| 61 | description: Supply of the second channel. |
| 62 | |
| 63 | regulators: |
| 64 | type: object |
| 65 | description: |
| 66 | Properties for both hot swap control/switch. |
| 67 | |
| 68 | patternProperties: |
| 69 | "^sw[0-1]$": |
| 70 | $ref: /schemas/regulator/regulator.yaml# |
| 71 | type: object |
| 72 | properties: |
| 73 | shunt-resistor-micro-ohms: |
| 74 | description: | |
| 75 | The value of current sense resistor in microohms. |
| 76 | |
| 77 | required: |
| 78 | - shunt-resistor-micro-ohms |
| 79 | |
| 80 | unevaluatedProperties: false |
| 81 | |
| 82 | additionalProperties: false |
| 83 | |
| 84 | required: |
| 85 | - compatible |
| 86 | - reg |
| 87 | - regulators |
| 88 | - vss1-supply |
| 89 | |
| 90 | allOf: |
| 91 | - if: |
| 92 | properties: |
| 93 | compatible: |
| 94 | enum: |
| 95 | - maxim,max5970 |
| 96 | then: |
| 97 | required: |
| 98 | - vss2-supply |
| 99 | |
| 100 | additionalProperties: false |
| 101 | |
| 102 | examples: |
| 103 | - | |
| 104 | i2c { |
| 105 | #address-cells = <1>; |
| 106 | #size-cells = <0>; |
| 107 | regulator@3a { |
| 108 | compatible = "maxim,max5978"; |
| 109 | reg = <0x3a>; |
| 110 | vss1-supply = <&p3v3>; |
| 111 | |
| 112 | regulators { |
| 113 | sw0_ref_0: sw0 { |
| 114 | shunt-resistor-micro-ohms = <12000>; |
| 115 | }; |
| 116 | }; |
| 117 | |
| 118 | leds { |
| 119 | #address-cells = <1>; |
| 120 | #size-cells = <0>; |
| 121 | led@0 { |
| 122 | reg = <0>; |
| 123 | label = "led0"; |
| 124 | default-state = "on"; |
| 125 | }; |
| 126 | led@1 { |
| 127 | reg = <1>; |
| 128 | label = "led1"; |
| 129 | default-state = "on"; |
| 130 | }; |
| 131 | }; |
| 132 | }; |
| 133 | }; |
| 134 | |
| 135 | - | |
| 136 | i2c { |
| 137 | #address-cells = <1>; |
| 138 | #size-cells = <0>; |
| 139 | |
| 140 | regulator@3a { |
| 141 | compatible = "maxim,max5970"; |
| 142 | reg = <0x3a>; |
| 143 | vss1-supply = <&p3v3>; |
| 144 | vss2-supply = <&p5v>; |
| 145 | |
| 146 | regulators { |
| 147 | sw0_ref_1: sw0 { |
| 148 | shunt-resistor-micro-ohms = <12000>; |
| 149 | }; |
| 150 | sw1_ref_1: sw1 { |
| 151 | shunt-resistor-micro-ohms = <10000>; |
| 152 | }; |
| 153 | }; |
| 154 | }; |
| 155 | }; |
| 156 | ... |