| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/mfd/maxim,max77686.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Maxim MAX77686 Power Management IC |
| 8 | |
| 9 | maintainers: |
| 10 | - Chanwoo Choi <cw00.choi@samsung.com> |
| 11 | - Krzysztof Kozlowski <krzk@kernel.org> |
| 12 | |
| 13 | description: | |
| 14 | This is a part of device tree bindings for Maxim MAX77686 Power Management |
| 15 | Integrated Circuit (PMIC). |
| 16 | |
| 17 | The Maxim MAX77686 is a Power Management IC which includes voltage and |
| 18 | current regulators, RTC and clock outputs. |
| 19 | |
| 20 | The MAX77686 provides three 32.768khz clock outputs that can be controlled |
| 21 | (gated/ungated) over I2C. The clock IDs are defined as preprocessor macros |
| 22 | in dt-bindings/clock/maxim,max77686.h. |
| 23 | |
| 24 | properties: |
| 25 | compatible: |
| 26 | const: maxim,max77686 |
| 27 | |
| 28 | '#clock-cells': |
| 29 | const: 1 |
| 30 | |
| 31 | interrupts: |
| 32 | maxItems: 1 |
| 33 | |
| 34 | reg: |
| 35 | maxItems: 1 |
| 36 | |
| 37 | voltage-regulators: |
| 38 | $ref: ../regulator/maxim,max77686.yaml |
| 39 | description: |
| 40 | List of child nodes that specify the regulators. |
| 41 | |
| 42 | wakeup-source: true |
| 43 | |
| 44 | required: |
| 45 | - compatible |
| 46 | - '#clock-cells' |
| 47 | - reg |
| 48 | |
| 49 | additionalProperties: false |
| 50 | |
| 51 | examples: |
| 52 | - | |
| 53 | #include <dt-bindings/gpio/gpio.h> |
| 54 | #include <dt-bindings/interrupt-controller/irq.h> |
| 55 | |
| 56 | i2c { |
| 57 | #address-cells = <1>; |
| 58 | #size-cells = <0>; |
| 59 | |
| 60 | max77686: pmic@9 { |
| 61 | compatible = "maxim,max77686"; |
| 62 | reg = <0x09>; |
| 63 | |
| 64 | interrupt-parent = <&gpx0>; |
| 65 | interrupts = <7 IRQ_TYPE_LEVEL_LOW>; |
| 66 | pinctrl-0 = <&max77686_irq>; |
| 67 | pinctrl-names = "default"; |
| 68 | wakeup-source; |
| 69 | #clock-cells = <1>; |
| 70 | |
| 71 | voltage-regulators { |
| 72 | LDO1 { |
| 73 | regulator-name = "VALIVE_1.0V_AP"; |
| 74 | regulator-min-microvolt = <1000000>; |
| 75 | regulator-max-microvolt = <1000000>; |
| 76 | regulator-always-on; |
| 77 | }; |
| 78 | |
| 79 | LDO2 { |
| 80 | regulator-name = "VM1M2_1.2V_AP"; |
| 81 | regulator-min-microvolt = <1200000>; |
| 82 | regulator-max-microvolt = <1200000>; |
| 83 | regulator-always-on; |
| 84 | regulator-state-mem { |
| 85 | regulator-on-in-suspend; |
| 86 | }; |
| 87 | }; |
| 88 | |
| 89 | // ... |
| 90 | |
| 91 | LDO22 { |
| 92 | regulator-name = "VMEM_VDD_2.8V"; |
| 93 | regulator-min-microvolt = <2800000>; |
| 94 | regulator-max-microvolt = <2800000>; |
| 95 | maxim,ena-gpios = <&gpk0 2 GPIO_ACTIVE_HIGH>; |
| 96 | }; |
| 97 | |
| 98 | // ... |
| 99 | |
| 100 | BUCK1 { |
| 101 | regulator-name = "VDD_MIF"; |
| 102 | regulator-min-microvolt = <850000>; |
| 103 | regulator-max-microvolt = <1100000>; |
| 104 | regulator-always-on; |
| 105 | regulator-boot-on; |
| 106 | regulator-state-mem { |
| 107 | regulator-off-in-suspend; |
| 108 | }; |
| 109 | }; |
| 110 | |
| 111 | BUCK2 { |
| 112 | regulator-name = "VDD_ARM"; |
| 113 | regulator-min-microvolt = <850000>; |
| 114 | regulator-max-microvolt = <1500000>; |
| 115 | regulator-always-on; |
| 116 | regulator-boot-on; |
| 117 | regulator-state-mem { |
| 118 | regulator-on-in-suspend; |
| 119 | }; |
| 120 | }; |
| 121 | |
| 122 | // ... |
| 123 | |
| 124 | BUCK9 { |
| 125 | regulator-name = "CAM_ISP_CORE_1.2V"; |
| 126 | regulator-min-microvolt = <1000000>; |
| 127 | regulator-max-microvolt = <1200000>; |
| 128 | maxim,ena-gpios = <&gpm0 3 GPIO_ACTIVE_HIGH>; |
| 129 | }; |
| 130 | }; |
| 131 | }; |
| 132 | }; |