mediatek,mt6357.yaml

  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
  7title: MediaTek MT6357 PMIC
  8
  9maintainers:
 10  - Flora Fu <flora.fu@mediatek.com>
 11  - Alexandre Mergnat <amergnat@baylibre.com>
 12
 13description: |
 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
 28properties:
 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  mediatek,hp-pull-down:
 41    description:
 42      Earphone driver positive output stage short to
 43      the audio reference ground.
 44    type: boolean
 45
 46  mediatek,micbias0-microvolt:
 47    description: Selects MIC Bias 0 output voltage.
 48    enum: [1700000, 1800000, 1900000, 2000000,
 49           2100000, 2500000, 2600000, 2700000]
 50    default: 1700000
 51
 52  mediatek,micbias1-microvolt:
 53    description: Selects MIC Bias 1 output voltage.
 54    enum: [1700000, 1800000, 1900000, 2000000,
 55           2100000, 2500000, 2600000, 2700000]
 56    default: 1700000
 57
 58  regulators:
 59    type: object
 60    $ref: /schemas/regulator/mediatek,mt6357-regulator.yaml
 61    unevaluatedProperties: false
 62    description:
 63      List of MT6357 BUCKs and LDOs regulators.
 64
 65  rtc:
 66    type: object
 67    $ref: /schemas/rtc/rtc.yaml#
 68    unevaluatedProperties: false
 69    description:
 70      MT6357 Real Time Clock.
 71    properties:
 72      compatible:
 73        const: mediatek,mt6357-rtc
 74      start-year: true
 75    required:
 76      - compatible
 77
 78  keys:
 79    type: object
 80    $ref: /schemas/input/mediatek,pmic-keys.yaml
 81    unevaluatedProperties: false
 82    description:
 83      MT6357 power and home keys.
 84
 85required:
 86  - compatible
 87  - regulators
 88
 89additionalProperties: false
 90
 91examples:
 92  - |
 93    #include <dt-bindings/interrupt-controller/arm-gic.h>
 94
 95    pwrap {
 96        pmic {
 97            compatible = "mediatek,mt6357";
 98
 99            interrupt-parent = <&pio>;
100            interrupts = <145 IRQ_TYPE_LEVEL_HIGH>;
101            interrupt-controller;
102            #interrupt-cells = <2>;
103
104            mediatek,micbias0-microvolt = <1700000>;
105            mediatek,micbias1-microvolt = <1700000>;
106
107            regulators {
108                mt6357_vproc_reg: buck-vproc {
109                    regulator-name = "vproc";
110                    regulator-min-microvolt = <518750>;
111                    regulator-max-microvolt = <1312500>;
112                    regulator-ramp-delay = <6250>;
113                    regulator-enable-ramp-delay = <220>;
114                    regulator-always-on;
115                };
116
117                // ...
118
119                mt6357_vusb33_reg: ldo-vusb33 {
120                    regulator-name = "vusb33";
121                    regulator-min-microvolt = <3000000>;
122                    regulator-max-microvolt = <3100000>;
123                    regulator-enable-ramp-delay = <264>;
124                };
125            };
126
127            rtc {
128                compatible = "mediatek,mt6357-rtc";
129            };
130
131            keys {
132                compatible = "mediatek,mt6357-keys";
133            };
134        };
135    };