projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 53633a89 TR |
1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | %YAML 1.2 | |
| 3 | --- | |
| 4 | $id: http://devicetree.org/schemas/regulator/fixed-regulator.yaml# | |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# | |
| 6 | ||
| 7 | title: Fixed Voltage regulators | |
| 8 | ||
| 9 | maintainers: | |
| 10 | - Liam Girdwood <lgirdwood@gmail.com> | |
| 11 | - Mark Brown <broonie@kernel.org> | |
| 12 | ||
| 13 | description: | |
| 14 | Any property defined as part of the core regulator binding, defined in | |
| 15 | regulator.yaml, can also be used. However a fixed voltage regulator is | |
| 16 | expected to have the regulator-min-microvolt and regulator-max-microvolt | |
| 17 | to be the same. | |
| 18 | ||
| 19 | allOf: | |
| 20 | - $ref: regulator.yaml# | |
| 21 | - if: | |
| 22 | properties: | |
| 23 | compatible: | |
| 24 | contains: | |
| 25 | const: regulator-fixed-clock | |
| 26 | then: | |
| 27 | required: | |
| 28 | - clocks | |
| 29 | - if: | |
| 30 | properties: | |
| 31 | compatible: | |
| 32 | contains: | |
| 33 | const: regulator-fixed-domain | |
| 34 | then: | |
| 35 | required: | |
| 36 | - power-domains | |
| 37 | - required-opps | |
| 38 | - not: | |
| 39 | required: | |
| 40 | - gpio | |
| 41 | - gpios | |
| 42 | ||
| 43 | properties: | |
| 44 | compatible: | |
| 45 | enum: | |
| 46 | - regulator-fixed | |
| 47 | - regulator-fixed-clock | |
| 48 | - regulator-fixed-domain | |
| 49 | ||
| 50 | regulator-name: true | |
| 51 | ||
| 52 | gpio: | |
| 53 | description: gpio to use for enable control | |
| 54 | maxItems: 1 | |
| 55 | ||
| 56 | gpios: | |
| 57 | maxItems: 1 | |
| 58 | ||
| 59 | clocks: | |
| 60 | description: | |
| 61 | clock to use for enable control. This binding is only available if | |
| 62 | the compatible is chosen to regulator-fixed-clock. The clock binding | |
| 63 | is mandatory if compatible is chosen to regulator-fixed-clock. | |
| 64 | maxItems: 1 | |
| 65 | ||
| 66 | power-domains: | |
| 67 | deprecated: true | |
| 68 | description: | |
| 69 | Power domain to use for enable control. This binding is only | |
| 70 | available if the compatible is chosen to regulator-fixed-domain. | |
| 71 | maxItems: 1 | |
| 72 | ||
| 73 | required-opps: | |
| 74 | deprecated: true | |
| 75 | description: | |
| 76 | Performance state to use for enable control. This binding is only | |
| 77 | available if the compatible is chosen to regulator-fixed-domain. The | |
| 78 | power-domain binding is mandatory if compatible is chosen to | |
| 79 | regulator-fixed-domain. | |
| 80 | maxItems: 1 | |
| 81 | ||
| 82 | startup-delay-us: | |
| 83 | description: startup time in microseconds | |
| 84 | ||
| 85 | off-on-delay-us: | |
| 86 | description: off delay time in microseconds | |
| 87 | ||
| 88 | enable-active-high: | |
| 89 | description: | |
| 90 | Polarity of GPIO is Active high. If this property is missing, | |
| 91 | the default assumed is Active low. | |
| 92 | type: boolean | |
| 93 | ||
| 94 | gpio-open-drain: | |
| 95 | description: | |
| 96 | GPIO is open drain type. If this property is missing then default | |
| 97 | assumption is false. | |
| 98 | type: boolean | |
| 99 | ||
| 100 | vin-supply: | |
| 101 | description: Input supply phandle. | |
| 102 | ||
| 103 | interrupts: | |
| 104 | maxItems: 1 | |
| 105 | description: | |
| 106 | Interrupt signaling a critical under-voltage event. | |
| 107 | ||
| 93743d24 TR |
108 | system-critical-regulator: true |
| 109 | ||
| 53633a89 TR |
110 | required: |
| 111 | - compatible | |
| 112 | - regulator-name | |
| 113 | ||
| 114 | unevaluatedProperties: false | |
| 115 | ||
| 116 | examples: | |
| 117 | - | | |
| 118 | reg_1v8: regulator-1v8 { | |
| 119 | compatible = "regulator-fixed"; | |
| 120 | regulator-name = "1v8"; | |
| 121 | regulator-min-microvolt = <1800000>; | |
| 122 | regulator-max-microvolt = <1800000>; | |
| 123 | gpio = <&gpio1 16 0>; | |
| 124 | startup-delay-us = <70000>; | |
| 125 | enable-active-high; | |
| 126 | regulator-boot-on; | |
| 127 | gpio-open-drain; | |
| 128 | vin-supply = <&parent_reg>; | |
| 129 | }; | |
| 130 | reg_1v8_clk: regulator-1v8-clk { | |
| 131 | compatible = "regulator-fixed-clock"; | |
| 132 | regulator-name = "1v8"; | |
| 133 | regulator-min-microvolt = <1800000>; | |
| 134 | regulator-max-microvolt = <1800000>; | |
| 135 | clocks = <&clock1>; | |
| 136 | startup-delay-us = <70000>; | |
| 137 | enable-active-high; | |
| 138 | regulator-boot-on; | |
| 139 | vin-supply = <&parent_reg>; | |
| 140 | }; | |
| 141 | reg_1v8_domain: regulator-1v8-domain { | |
| 142 | compatible = "regulator-fixed-domain"; | |
| 143 | regulator-name = "1v8"; | |
| 144 | regulator-min-microvolt = <1800000>; | |
| 145 | regulator-max-microvolt = <1800000>; | |
| 146 | power-domains = <&domain1>; | |
| 147 | required-opps = <&domain1_state1>; | |
| 148 | startup-delay-us = <70000>; | |
| 149 | enable-active-high; | |
| 150 | regulator-boot-on; | |
| 151 | vin-supply = <&parent_reg>; | |
| 152 | }; | |
| 153 | ... |