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only for test
Signed-off-by: Joan-Na-adi <[email protected]>
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‎Documentation/devicetree/bindings/regulator/maxim,max77675.yaml‎

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/regulator/maxim,max77675.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Maxim MAX77675 PMIC Regulator
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maintainers:
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- Joan Na <[email protected]>
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description: |
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The MAX77675 is a PMIC providing multiple switching buck regulators
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(SBB0–SBB3), accessible via I2C. Each SBB can be configured individually
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in the Device Tree. Additional PMIC settings can be configured through
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device-specific properties.
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Users should use the macros from dt-bindings/regulator/maxim,max77675-regulator.h
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allOf:
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- $ref: regulator.yaml#
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properties:
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compatible:
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const: maxim,max77675
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reg:
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maxItems: 1
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maxim,dvs-slew-rate:
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description: |
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DVS slew rate setting.
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0 (MAX77675_DVS_SLEW_5MV) - 5 mV/μs
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1 (MAX77675_DVS_SLEW_10MV) - 10 mV/μs
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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maxim,latency-mode:
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description: |
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Latency mode for voltage transition:
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0 (MAX77675_LAT_MODE_HIGH_LATENCY) - Low quiescent current, high latency (~100μs)
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1 (MAX77675_LAT_MODE_LOW_LATENCY) - High quiescent current, low latency (~10μs)
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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maxim,drv-sbb-strength:
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description: |
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SIMO Buck-Boost Drive Strength Trim.
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0 (MAX77675_DRV_SBB_FASTEST) - Fastest transition (~0.6 ns)
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1 (MAX77675_DRV_SBB_FAST) - Faster transition (~1.2 ns)
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2 (MAX77675_DRV_SBB_MEDIUM) - Moderate transition (~1.8 ns)
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3 (MAX77675_DRV_SBB_SLOWEST) - Slowest transition (~8 ns)
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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maxim,manual-reset-time:
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description: |
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Manual reset time in seconds:
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0 (MAX77675_MRT_4S): 4 seconds
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1 (MAX77675_MRT_8S): 8 seconds
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2 (MAX77675_MRT_12S): 12 seconds
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3 (MAX77675_MRT_16S): 16 seconds
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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maxim,en-pullup-disable:
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description: |
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Disable internal pull-up for EN pin.
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0 (MAX77675_PU_EN): Internal pull-up enabled (default).
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1 (MAX77675_PU_DIS): Internal pull-up disabled.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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maxim,bias-low-power-request:
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description: |
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Controls the bias low-power mode setting.
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0 (MAX77675_BIAS_NORMAL): Normal bias operation
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1 (MAX77675_BIAS_LPM_REQ): Request low-power bias mode
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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maxim,simo-int-ldo-always-on:
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description: |
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SIMO internal channel disable configuration.
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0 (MAX77675_SIMO_INT_NORMAL): SIMO channel enabled
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1 (MAX77675_SIMO_INT_LDO): SIMO channel disabled
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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maxim,en-mode:
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description: |
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Enable mode configuration.
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0 (MAX77675_EN_PUSH_BUTTON): Push button
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1 (MAX77675_EN_SLIDE_SWITCH): Slide switch
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2 (MAX77675_EN_LOGIC): Logic mode
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3 (MAX77675_EN_RESERVED): Reserved
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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maxim,en-debounce-time:
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description: |
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Debounce timer enable.
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0 (MAX77675_DBEN_100US): 100us
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1 (MAX77675_DBEN_30MS): 30ms
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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regulators:
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type: object
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description: Regulator child nodes
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patternProperties:
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"^sbb[0-3]$":
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type: object
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$ref: regulator.yaml#
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properties:
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maxim,fps-slot:
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description: |
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FPS slot selection.
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0 (MAX77675_FPS_SLOT_0): FPS Slot 0
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1 (MAX77675_FPS_SLOT_1): FPS Slot 1
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2 (MAX77675_FPS_SLOT_2): FPS Slot 2
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3 (MAX77675_FPS_SLOT_3): FPS Slot 3
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4 (MAX77675_FPS_NONE): No FPS Slot (disabled)
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5 (MAX77675_FPS_DEF): Use the defaul
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3, 4, 5]
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maxim,slew-rate-use-dvs:
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description: |
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0 (MAX77675_SR_2MV_PER_US): Fixed slew rate of 2mV/μs.
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1 (MAX77675_SR_USE_DVS): Uses maxim,dvs-slew-rate for dynamic voltage scaling.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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additionalProperties: false
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required:
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- compatible
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- reg
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- regulators
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/regulator/maxim,max77675-regulator.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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max77675: pmic@44 {
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compatible = "maxim,max77675";
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reg = <0x44>;
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maxim,dvs-slew-rate = <MAX77675_DVS_SLEW_5MV>;
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maxim,latency-mode = <MAX77675_LAT_MODE_HIGH_LATENCY>;
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maxim,drv-sbb-strength = <MAX77675_DRV_SBB_FASTEST>;
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maxim,manual-reset-time = <MAX77675_MRT_4S>;
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maxim,en-pullup-disable = <MAX77675_PU_EN>;
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maxim,bias-low-power-request = <MAX77675_BIAS_NORMAL>;
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maxim,simo-int-ldo-always-on = <MAX77675_SIMO_INT_NORMAL>;
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maxim,en-mode = <MAX77675_EN_PUSH_BUTTON>;
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maxim,en-debounce-time = <MAX77675_DBEN_100US>;
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regulators {
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sbb0: sbb0 {
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regulator-name = "sbb0";
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regulator-min-microvolt = <500000>;
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regulator-max-microvolt = <5500000>;
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maxim,fps-slot = <MAX77675_FPS_DEF>;
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maxim,slew-rate-use-dvs = <MAX77675_SR_2MV_PER_US>;
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};
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sbb1: sbb1 {
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regulator-name = "sbb1";
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regulator-min-microvolt = <500000>;
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regulator-max-microvolt = <5500000>;
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regulator-allow-set-voltage;
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maxim,fps-slot = <MAX77675_FPS_DEF>;
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maxim,slew-rate-use-dvs = <MAX77675_SR_2MV_PER_US>;
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};
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sbb2: sbb2 {
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regulator-name = "sbb2";
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regulator-min-microvolt = <500000>;
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regulator-max-microvolt = <5500000>;
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regulator-allow-set-voltage;
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maxim,fps-slot = <MAX77675_FPS_DEF>;
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maxim,slew-rate-use-dvs = <MAX77675_SR_2MV_PER_US>;
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};
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sbb3: sbb3 {
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regulator-name = "sbb3";
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regulator-min-microvolt = <500000>;
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regulator-max-microvolt = <5500000>;
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regulator-allow-set-voltage;
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maxim,fps-slot = <MAX77675_FPS_DEF>;
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maxim,slew-rate-use-dvs = <MAX77675_SR_2MV_PER_US>;
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};
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};
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};
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};
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‎drivers/regulator/Kconfig‎

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Semiconductor. This device has a SIMO with three independent
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power rails and an LDO.
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config REGULATOR_MAX77675
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tristate "MAX77675 regulator driver"
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depends on I2C
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select REGMAP_I2C
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help
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Regulator driver for Maxim MAX77675.
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config REGULATOR_MAX77857
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tristate "ADI MAX77857/MAX77831 regulator support"
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depends on I2C

‎drivers/regulator/Makefile‎

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obj-$(CONFIG_REGULATOR_MAX77541) += max77541-regulator.o
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obj-$(CONFIG_REGULATOR_MAX77620) += max77620-regulator.o
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obj-$(CONFIG_REGULATOR_MAX77650) += max77650-regulator.o
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obj-$(CONFIG_REGULATOR_MAX77675) += max77675-regulator.o
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obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o
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obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o
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obj-$(CONFIG_REGULATOR_MAX8893) += max8893.o

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