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| 1 | +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/mfd/ams,as3711.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: Austria MicroSystems AS3711 Quad Buck High Current PMIC with Charger |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> |
| 11 | + |
| 12 | +description: |
| 13 | + AS3711 is an I2C PMIC from Austria MicroSystems with multiple DC/DC and LDO |
| 14 | + power supplies, a battery charger and an RTC. So far only bindings for the |
| 15 | + two step-up DC/DC converters are defined. |
| 16 | + |
| 17 | +properties: |
| 18 | + compatible: |
| 19 | + const: ams,as3711 |
| 20 | + |
| 21 | + reg: |
| 22 | + maxItems: 1 |
| 23 | + |
| 24 | + backlight: |
| 25 | + description: |
| 26 | + Step-up converter configuration, to be used as a backlight source |
| 27 | + type: object |
| 28 | + additionalProperties: false |
| 29 | + properties: |
| 30 | + compatible: |
| 31 | + const: ams,as3711-bl |
| 32 | + |
| 33 | + su1-dev: |
| 34 | + description: Framebuffer phandle for the first step-up converter |
| 35 | + $ref: /schemas/types.yaml#/definitions/phandle |
| 36 | + |
| 37 | + su1-max-uA: |
| 38 | + description: Maximum current for the first step-up converter |
| 39 | + $ref: /schemas/types.yaml#/definitions/uint32 |
| 40 | + |
| 41 | + su2-dev: |
| 42 | + description: Framebuffer phandle for the second step-up converter |
| 43 | + $ref: /schemas/types.yaml#/definitions/phandle |
| 44 | + |
| 45 | + su2-max-uA: |
| 46 | + description: Maximum current for the second step-up converter |
| 47 | + $ref: /schemas/types.yaml#/definitions/uint32 |
| 48 | + |
| 49 | + su2-feedback-voltage: |
| 50 | + description: Second step-up converter uses voltage feedback |
| 51 | + type: boolean |
| 52 | + |
| 53 | + su2-feedback-curr1: |
| 54 | + description: |
| 55 | + Second step-up converter uses CURR1 input for current feedback |
| 56 | + type: boolean |
| 57 | + |
| 58 | + su2-feedback-curr2: |
| 59 | + description: |
| 60 | + Second step-up converter uses CURR2 input for current feedback |
| 61 | + type: boolean |
| 62 | + |
| 63 | + su2-feedback-curr3: |
| 64 | + description: |
| 65 | + Second step-up converter uses CURR3 input for current feedback |
| 66 | + type: boolean |
| 67 | + |
| 68 | + su2-feedback-curr-auto: |
| 69 | + description: |
| 70 | + Second step-up converter uses automatic current feedback selection |
| 71 | + type: boolean |
| 72 | + |
| 73 | + su2-fbprot-lx-sd4: |
| 74 | + description: |
| 75 | + Second step-up converter uses LX_SD4 for over-voltage protection |
| 76 | + type: boolean |
| 77 | + |
| 78 | + su2-fbprot-gpio2: |
| 79 | + description: |
| 80 | + Second step-up converter uses GPIO2 for over-voltage protection |
| 81 | + type: boolean |
| 82 | + |
| 83 | + su2-fbprot-gpio3: |
| 84 | + description: |
| 85 | + Second step-up converter uses GPIO3 for over-voltage protection |
| 86 | + type: boolean |
| 87 | + |
| 88 | + su2-fbprot-gpio4: |
| 89 | + description: |
| 90 | + Second step-up converter uses GPIO4 for over-voltage protection |
| 91 | + type: boolean |
| 92 | + |
| 93 | + su2-auto-curr1: |
| 94 | + description: |
| 95 | + Second step-up converter uses CURR1 input for automatic current |
| 96 | + feedback |
| 97 | + type: boolean |
| 98 | + |
| 99 | + su2-auto-curr2: |
| 100 | + description: |
| 101 | + Second step-up converter uses CURR2 input for automatic current |
| 102 | + feedback |
| 103 | + type: boolean |
| 104 | + |
| 105 | + su2-auto-curr3: |
| 106 | + description: |
| 107 | + Second step-up converter uses CURR3 input for automatic current |
| 108 | + feedback |
| 109 | + type: boolean |
| 110 | + |
| 111 | + required: |
| 112 | + - compatible |
| 113 | + |
| 114 | + dependentRequired: |
| 115 | + # To use the SU1 converter as a backlight source the following two |
| 116 | + # properties must be provided: |
| 117 | + su1-dev: [ su1-max-uA ] |
| 118 | + su1-max-uA: [ su1-dev ] |
| 119 | + |
| 120 | + # To use the SU2 converter as a backlight source the following two |
| 121 | + # properties must be provided: |
| 122 | + su2-dev: [ su2-max-uA ] |
| 123 | + su2-max-uA: [ su2-dev ] |
| 124 | + |
| 125 | + su2-feedback-voltage: [ su2-dev ] |
| 126 | + su2-feedback-curr1: [ su2-dev ] |
| 127 | + su2-feedback-curr2: [ su2-dev ] |
| 128 | + su2-feedback-curr3: [ su2-dev ] |
| 129 | + su2-feedback-curr-auto: [ su2-dev ] |
| 130 | + su2-fbprot-lx-sd4: [ su2-dev ] |
| 131 | + su2-fbprot-gpio2: [ su2-dev ] |
| 132 | + su2-fbprot-gpio3: [ su2-dev ] |
| 133 | + su2-fbprot-gpio4: [ su2-dev ] |
| 134 | + su2-auto-curr1: [ su2-feedback-curr-auto ] |
| 135 | + su2-auto-curr2: [ su2-feedback-curr-auto ] |
| 136 | + su2-auto-curr3: [ su2-feedback-curr-auto ] |
| 137 | + |
| 138 | + dependentSchemas: |
| 139 | + su2-dev: |
| 140 | + allOf: |
| 141 | + - oneOf: |
| 142 | + - required: |
| 143 | + - su2-feedback-voltage |
| 144 | + - required: |
| 145 | + - su2-feedback-curr1 |
| 146 | + - required: |
| 147 | + - su2-feedback-curr2 |
| 148 | + - required: |
| 149 | + - su2-feedback-curr3 |
| 150 | + - required: |
| 151 | + - su2-feedback-curr-auto |
| 152 | + - oneOf: |
| 153 | + - required: |
| 154 | + - su2-fbprot-lx-sd4 |
| 155 | + - required: |
| 156 | + - su2-fbprot-gpio2 |
| 157 | + - required: |
| 158 | + - su2-fbprot-gpio3 |
| 159 | + - required: |
| 160 | + - su2-fbprot-gpio4 |
| 161 | + |
| 162 | + su2-feedback-curr-auto: |
| 163 | + anyOf: |
| 164 | + - required: |
| 165 | + - su2-auto-curr1 |
| 166 | + - required: |
| 167 | + - su2-auto-curr2 |
| 168 | + - required: |
| 169 | + - su2-auto-curr3 |
| 170 | + |
| 171 | + regulators: |
| 172 | + description: Other DC/DC and LDO supplies |
| 173 | + type: object |
| 174 | + unevaluatedProperties: false |
| 175 | + patternProperties: |
| 176 | + "^(sd[1-4]|ldo[1-8])$": |
| 177 | + type: object |
| 178 | + $ref: /schemas/regulator/regulator.yaml# |
| 179 | + unevaluatedProperties: false |
| 180 | + |
| 181 | +required: |
| 182 | + - compatible |
| 183 | + - reg |
| 184 | + |
| 185 | +additionalProperties: false |
| 186 | + |
| 187 | +examples: |
| 188 | + - | |
| 189 | + i2c { |
| 190 | + #address-cells = <1>; |
| 191 | + #size-cells = <0>; |
| 192 | +
|
| 193 | + pmic@40 { |
| 194 | + compatible = "ams,as3711"; |
| 195 | + reg = <0x40>; |
| 196 | +
|
| 197 | + regulators { |
| 198 | + sd4 { |
| 199 | + regulator-name = "1.215V"; |
| 200 | + regulator-min-microvolt = <1215000>; |
| 201 | + regulator-max-microvolt = <1235000>; |
| 202 | + }; |
| 203 | + ldo2 { |
| 204 | + regulator-name = "2.8V CPU"; |
| 205 | + regulator-min-microvolt = <2800000>; |
| 206 | + regulator-max-microvolt = <2800000>; |
| 207 | + regulator-always-on; |
| 208 | + regulator-boot-on; |
| 209 | + }; |
| 210 | + }; |
| 211 | +
|
| 212 | + backlight { |
| 213 | + compatible = "ams,as3711-bl"; |
| 214 | + su2-dev = <&lcdc>; |
| 215 | + su2-max-uA = <36000>; |
| 216 | + su2-feedback-curr-auto; |
| 217 | + su2-fbprot-gpio4; |
| 218 | + su2-auto-curr1; |
| 219 | + su2-auto-curr2; |
| 220 | + su2-auto-curr3; |
| 221 | + }; |
| 222 | + }; |
| 223 | + }; |
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