| 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/mediatek,mt6357.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: MediaTek MT6357 PMIC |
| 8 | |
| 9 | maintainers: |
| 10 | - Flora Fu <flora.fu@mediatek.com> |
| 11 | - Alexandre Mergnat <amergnat@baylibre.com> |
| 12 | |
| 13 | description: | |
| 14 | MT6357 is a power management system chip containing 5 buck |
| 15 | converters and 29 LDOs. Supported features are audio codec, |
| 16 | USB battery charging, fuel gauge, RTC |
| 17 | |
| 18 | This is a multifunction device with the following sub modules: |
| 19 | - Regulator |
| 20 | - RTC |
| 21 | - Keys |
| 22 | |
| 23 | It is interfaced to host controller using SPI interface by a proprietary hardware |
| 24 | called PMIC wrapper or pwrap. This MFD is a child device of pwrap. |
| 25 | See the following for pwrap node definitions: |
| 26 | Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml |
| 27 | |
| 28 | properties: |
| 29 | compatible: |
| 30 | const: mediatek,mt6357 |
| 31 | |
| 32 | interrupts: |
| 33 | maxItems: 1 |
| 34 | |
| 35 | interrupt-controller: true |
| 36 | |
| 37 | "#interrupt-cells": |
| 38 | const: 2 |
| 39 | |
| 40 | regulators: |
| 41 | type: object |
| 42 | $ref: /schemas/regulator/mediatek,mt6357-regulator.yaml |
| 43 | unevaluatedProperties: false |
| 44 | description: |
| 45 | List of MT6357 BUCKs and LDOs regulators. |
| 46 | |
| 47 | rtc: |
| 48 | type: object |
| 49 | $ref: /schemas/rtc/rtc.yaml# |
| 50 | unevaluatedProperties: false |
| 51 | description: |
| 52 | MT6357 Real Time Clock. |
| 53 | properties: |
| 54 | compatible: |
| 55 | const: mediatek,mt6357-rtc |
| 56 | start-year: true |
| 57 | required: |
| 58 | - compatible |
| 59 | |
| 60 | keys: |
| 61 | type: object |
| 62 | $ref: /schemas/input/mediatek,pmic-keys.yaml |
| 63 | unevaluatedProperties: false |
| 64 | description: |
| 65 | MT6357 power and home keys. |
| 66 | |
| 67 | required: |
| 68 | - compatible |
| 69 | - regulators |
| 70 | |
| 71 | additionalProperties: false |
| 72 | |
| 73 | examples: |
| 74 | - | |
| 75 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 76 | |
| 77 | pwrap { |
| 78 | pmic { |
| 79 | compatible = "mediatek,mt6357"; |
| 80 | |
| 81 | interrupt-parent = <&pio>; |
| 82 | interrupts = <145 IRQ_TYPE_LEVEL_HIGH>; |
| 83 | interrupt-controller; |
| 84 | #interrupt-cells = <2>; |
| 85 | |
| 86 | regulators { |
| 87 | mt6357_vproc_reg: buck-vproc { |
| 88 | regulator-name = "vproc"; |
| 89 | regulator-min-microvolt = <518750>; |
| 90 | regulator-max-microvolt = <1312500>; |
| 91 | regulator-ramp-delay = <6250>; |
| 92 | regulator-enable-ramp-delay = <220>; |
| 93 | regulator-always-on; |
| 94 | }; |
| 95 | |
| 96 | // ... |
| 97 | |
| 98 | mt6357_vusb33_reg: ldo-vusb33 { |
| 99 | regulator-name = "vusb33"; |
| 100 | regulator-min-microvolt = <3000000>; |
| 101 | regulator-max-microvolt = <3100000>; |
| 102 | regulator-enable-ramp-delay = <264>; |
| 103 | }; |
| 104 | }; |
| 105 | |
| 106 | rtc { |
| 107 | compatible = "mediatek,mt6357-rtc"; |
| 108 | }; |
| 109 | |
| 110 | keys { |
| 111 | compatible = "mediatek,mt6357-keys"; |
| 112 | }; |
| 113 | }; |
| 114 | }; |