maxim,max8973.yaml (3606B)
1# SPDX-License-Identifier: GPL-2.0-only 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/regulator/maxim,max8973.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Maxim MAX8973/MAX77621 voltage regulator 8 9maintainers: 10 - Krzysztof Kozlowski <krzk@kernel.org> 11 12allOf: 13 - $ref: regulator.yaml# 14 15properties: 16 compatible: 17 enum: 18 - maxim,max8973 19 - maxim,max77621 20 21 junction-warn-millicelsius: 22 description: | 23 Junction warning temperature threshold in millicelsius. If die 24 temperature crosses this level then device generates the warning 25 interrupts. 26 Please note that thermal functionality is only supported on MAX77621. The 27 supported threshold warning temperature for MAX77621 are 120 degC and 140 28 degC. 29 30 maxim,dvs-gpio: 31 maxItems: 1 32 description: | 33 GPIO which is connected to DVS pin of device. 34 35 maxim,dvs-default-state: 36 $ref: /schemas/types.yaml#/definitions/uint32 37 enum: [0, 1] 38 description: | 39 Default state of GPIO during initialisation. 40 1 for HIGH and 0 for LOW. 41 42 maxim,externally-enable: 43 type: boolean 44 description: | 45 Externally control the regulator output enable/disable. 46 47 maxim,enable-gpio: 48 maxItems: 1 49 description: | 50 GPIO for enable control. If the valid GPIO is provided then externally 51 enable control will be considered. 52 53 maxim,enable-remote-sense: 54 type: boolean 55 description: Enable remote sense. 56 57 maxim,enable-falling-slew-rate: 58 type: boolean 59 description: Enable falling slew rate. 60 61 maxim,enable-active-discharge: 62 type: boolean 63 description: Eable active discharge. 64 65 maxim,enable-frequency-shift: 66 type: boolean 67 description: Enable 9% frequency shift. 68 69 maxim,enable-bias-control: 70 type: boolean 71 description: | 72 Enable bias control which can reduce the startup delay to 20us from 220us. 73 74 maxim,enable-etr: 75 type: boolean 76 description: Enable Enhanced Transient Response. 77 78 maxim,enable-high-etr-sensitivity: 79 type: boolean 80 description: | 81 Enhanced transient response circuit is enabled and set for high 82 sensitivity. If this property is available then etr will be enable 83 default. 84 Enhanced transient response (ETR) will affect the configuration of CKADV. 85 86 reg: 87 maxItems: 1 88 89 interrupts: 90 maxItems: 1 91 92required: 93 - compatible 94 - reg 95 96unevaluatedProperties: false 97 98examples: 99 - | 100 i2c { 101 #address-cells = <1>; 102 #size-cells = <0>; 103 104 regulator@1b { 105 compatible = "maxim,max8973"; 106 reg = <0x1b>; 107 108 regulator-min-microvolt = <935000>; 109 regulator-max-microvolt = <1200000>; 110 regulator-boot-on; 111 regulator-always-on; 112 }; 113 }; 114 115 - | 116 #include <dt-bindings/gpio/gpio.h> 117 #include <dt-bindings/interrupt-controller/irq.h> 118 119 i2c { 120 #address-cells = <1>; 121 #size-cells = <0>; 122 123 regulator@1b { 124 compatible = "maxim,max77621"; 125 reg = <0x1b>; 126 interrupts = <1 IRQ_TYPE_LEVEL_LOW>; 127 128 regulator-always-on; 129 regulator-boot-on; 130 regulator-min-microvolt = <800000>; 131 regulator-max-microvolt = <1231250>; 132 regulator-name = "PPVAR_CPU"; 133 regulator-ramp-delay = <12500>; 134 maxim,dvs-default-state = <1>; 135 maxim,enable-active-discharge; 136 maxim,enable-bias-control; 137 maxim,enable-etr; 138 maxim,enable-gpio = <&pmic 5 GPIO_ACTIVE_HIGH>; 139 maxim,externally-enable; 140 }; 141 };