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mfd: add max77851 pmic MFD driver
Adding MAX77851 MFD driver provided by Maxim. - fix android warning/error for uninitialized variable return Bug 200749982 Change-Id: I6ef82a6c06fe7bbd4df2c71991ec6c5c15e28474 Signed-off-by: Shubhi Garg <shgarg@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-5.10/+/2591158 Signed-off-by: Bitan Biswas <bbiswas@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2938653 GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
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Documentation/devicetree/bindings/mfd/max77851.yaml
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258
Documentation/devicetree/bindings/mfd/max77851.yaml
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# SPDX-License-Identifier: GPL-2.0-only
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# SPDX-FileCopyrightText: Copyright (c) 2022-2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mfd/max77851.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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maintainers:
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- Joan Na<Joan.na@maximintegrated.com>
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- Shubhi Garg <shgarg@nvidia.com>
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description: |
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MAX77851 Power management IC from Maxim Semiconductor.
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properties:
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compatible:
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const: "maxim,max77851-pmic"
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reg:
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maxItems: 1
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description:
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I2C device address.
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interrupts:
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maxItems: 1
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description:
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The interrupt on the parent the controller is connected to.
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interrupt-controller:
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description:
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Marks the device node as an interrupt controller.
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"#interrupt-cells":
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const: 2
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description:
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is <2> and their usage is compliant to the 2 cells
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variant of <../interrupt-controller/interrupts.txt>
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IRQ numbers for different interrupt source of MAX77851
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are defined at dt-bindings/mfd/max77620.h.
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required:
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- compatible
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- reg
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additionalProperties:
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- interrupts
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- interrupt-controller
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- #interrupt-cells
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Optional subnodes and their properties:
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Flexible power sequence configurations:
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The Flexible Power Sequencer (FPS) allows each regulator to power up under
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hardware or software control.
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- maxim,power-down-slot-period-us: Inter Master Power-Down Slot Period
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- maxim,power-up-slot-period-us: Inter Master Power-Up Slot Period
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- maxim,sleep-entry-slot-period-us: Inter Master Sleep Entry Slot Period
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- maxim,sleep-exit-slot-period-us: Inter Master Sleep Exit Slot Period
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- maxim,power-down-time-period-us: Master 0/1/2/3 Power-Down Slot Period
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- maxim,power-up-time-period-us: Master 0/1/2/3 Power-Up Slot Period
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- maxim,sleep-entry-time-period-us: Master 0/1/2/3 Sleep Entry Slot Period
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- maxim,sleep-exit-time-period-us: Master 0/1/2/3 Sleep Exit Slot Period
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Valid values for slot period are:
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FPS_PERIOD_32KHZ_30US
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FPS_PERIOD_32KHZ_61US
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FPS_PERIOD_32KHZ_122US
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FPS_PERIOD_32KHZ_244US
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FPS_PERIOD_32KHZ_488US
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FPS_PERIOD_32KHZ_762US
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FPS_PERIOD_32KHZ_1007US
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FPS_PERIOD_32KHZ_1251US
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FPS_PERIOD_32KHZ_1495US
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FPS_PERIOD_32KHZ_1739US
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FPS_PERIOD_32KHZ_2014US
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FPS_PERIOD_32KHZ_2990US
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FPS_PERIOD_32KHZ_3997US
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FPS_PERIOD_32KHZ_5004US
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FPS_PERIOD_32KHZ_6011US
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FPS_PERIOD_32KHZ_7995US
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FPS_PERIOD_4KHZ_025US
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FPS_PERIOD_4KHZ_050US
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FPS_PERIOD_4KHZ_1US
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FPS_PERIOD_4KHZ_2US
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FPS_PERIOD_4KHZ_4US
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FPS_PERIOD_4KHZ_8US
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FPS_PERIOD_4KHZ_16US
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FPS_PERIOD_4KHZ_25US
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FPS_PERIOD_4KHZ_50US
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FPS_PERIOD_4KHZ_100US
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FPS_PERIOD_4KHZ_250US
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FPS_PERIOD_4KHZ_500US
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FPS_PERIOD_4KHZ_1000US
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FPS_PERIOD_4KHZ_2000US
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FPS_PERIOD_4KHZ_3000US
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- maxim,fps-enable: FPS Enable
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Valid values for FPS enable are:
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MAX77851_FPS_DISABLE
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MAX77851_FPS_ENABLE
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- maxim,abort-enable: FPS Abort Enable
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Valid values for FPS enable are:
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MAX77851_FPS_ABORT_DISABLE
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MAX77851_FPS_ABORT_ENABLE
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- maxim,sleep-enable: FPS Sleep Enable
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Valid values for FPS sleep enable are:
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MAX77851_FPS_SLEEP_DISABLE
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MAX77851_FPS_SLEEP_ENABLE
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MAX77851_FPS_SLEEP_LPM
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MAX77851_FPS_SLEEP_ULPM
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- maxim,abort-mode: FPS Abort Mode
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Valid values for FPS sleep abort mode are:
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MAX77851_FPS_ABORT_NEXT_SLOT
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MAX77851_FPS_ABORT_NEXT_MASTER_SLOT
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- maxim,pd-max-slot: Master 0/1/2/3 Power-Down Max Used Slots
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- maxim,pu-max-slot: Master 0/1/2/3 Power-Up Max Used Slots
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- maxim,slpy-max-slot: Master 0/1/2/3 Sleep Entry Max Used Slots
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- maxim,slpx-max-slot: Master 0/1/2/3 Sleep Exit Max Used Slots
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Valid values for FPS Max Used Slots are:
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MAX77851_FPS_SLOT_0
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MAX77851_FPS_SLOT_1
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MAX77851_FPS_SLOT_2
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MAX77851_FPS_SLOT_3
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MAX77851_FPS_SLOT_4
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MAX77851_FPS_SLOT_5
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MAX77851_FPS_SLOT_6
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MAX77851_FPS_SLOT_7
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MAX77851_FPS_SLOT_8
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MAX77851_FPS_SLOT_9
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MAX77851_FPS_SLOT_A
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MAX77851_FPS_SLOT_B
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MAX77851_FPS_SLOT_C
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MAX77851_FPS_SLOT_D
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MAX77851_FPS_SLOT_E
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MAX77851_FPS_SLOT_F
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- maxim,sleep-on-suspend: Enter SLEEP state when system is suspended.
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Bool property. Add this property if required to
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enter SLEEP state during system suspend.
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examples:
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- |
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#include <dt-bindings/mfd/max77620.h>
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max77851: max77851@3c {
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compatible = "maxim,max77851-pmic";
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reg = <0x3c>;
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interrupt-parent = <&gpio>;
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interrupt-names = "max77851_irq";
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interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
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#thermal-sensor-cells = <0>;
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system-power-controller;
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#interrupt-cells = <2>;
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interrupt-controller;
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#gpio-cells = <2>;
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gpio-controller;
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fps {
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maxim,power-down-slot-period-us = <FPS_PERIOD_4KHZ_050US>;
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maxim,power-up-slot-period-us = <FPS_PERIOD_32KHZ_122US>;
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maxim,sleep-entry-slot-period-us = <FPS_PERIOD_4KHZ_050US>;
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maxim,sleep-exit-slot-period-us = <FPS_PERIOD_32KHZ_122US>;
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fps0 {
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maxim,pd-fps-master-slot = <MAX77851_FPS_MX_MASTER_SLOT_0>;
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maxim,pu-fps-master-slot = <MAX77851_FPS_MX_MASTER_SLOT_0>;
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maxim,power-down-time-period-us = <FPS_PERIOD_4KHZ_100US>;
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maxim,power-up-time-period-us = <FPS_PERIOD_32KHZ_244US>;
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maxim,fps-enable = <MAX77851_FPS_ENABLE>;
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maxim,abort-enable = <MAX77851_FPS_ABORT_ENABLE>;
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maxim,sleep-enable = <MAX77851_FPS_SLEEP_DISABLE>;
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maxim,abort-mode = <MAX77851_FPS_ABORT_NEXT_MASTER_SLOT>;
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maxim,pd-max-slot = <MAX77851_FPS_12_SLOTS>;
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maxim,pu-max-slot = <MAX77851_FPS_10_SLOTS>;
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};
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fps1 {
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maxim,pd-fps-master-slot = <MAX77851_FPS_MX_MASTER_SLOT_0>;
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maxim,pu-fps-master-slot = <MAX77851_FPS_MX_MASTER_SLOT_0>;
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maxim,slpy-fps-master-slot = <MAX77851_FPS_MX_MASTER_SLOT_0>;
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maxim,slpx-fps-master-slot = <MAX77851_FPS_MX_MASTER_SLOT_0>;
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maxim,power-down-time-period-us = <FPS_PERIOD_4KHZ_100US>;
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maxim,power-up-time-period-us = <FPS_PERIOD_32KHZ_244US>;
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maxim,sleep-entry-time-period-us = <FPS_PERIOD_4KHZ_100US>;
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maxim,sleep-exit-time-period-us = <FPS_PERIOD_32KHZ_244US>;
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maxim,fps-enable = <MAX77851_FPS_ENABLE>;
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maxim,abort-enable = <MAX77851_FPS_ABORT_ENABLE>;
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maxim,sleep-enable = <MAX77851_FPS_SLEEP_ENABLE>;
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maxim,abort-mode = <MAX77851_FPS_ABORT_NEXT_MASTER_SLOT>;
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maxim,pd-max-slot = <MAX77851_FPS_12_SLOTS>;
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maxim,pu-max-slot = <MAX77851_FPS_10_SLOTS>;
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maxim,slpy-max-slot = <MAX77851_FPS_08_SLOTS>;
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maxim,slpx-max-slot = <MAX77851_FPS_08_SLOTS>;
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#maxim,fps-event-source = <MAX77851_FPS_EVENT_SRC_EN0>;
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};
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fps2 {
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maxim,pd-fps-master-slot = <MAX77851_FPS_MX_MASTER_SLOT_0>;
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maxim,pu-fps-master-slot = <MAX77851_FPS_MX_MASTER_SLOT_0>;
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maxim,power-down-time-period-us = <FPS_PERIOD_4KHZ_100US>;
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maxim,power-up-time-period-us = <FPS_PERIOD_32KHZ_244US>;
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maxim,fps-enable = <MAX77851_FPS_ENABLE>;
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maxim,abort-enable = <MAX77851_FPS_ABORT_ENABLE>;
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maxim,sleep-enable = <MAX77851_FPS_SLEEP_LPM>;
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maxim,abort-mode = <MAX77851_FPS_ABORT_NEXT_MASTER_SLOT>;
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maxim,pd-max-slot = <MAX77851_FPS_12_SLOTS>;
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maxim,pu-max-slot = <MAX77851_FPS_10_SLOTS>;
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};
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fps3 {
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maxim,pd-fps-master-slot = <MAX77851_FPS_MX_MASTER_SLOT_0>;
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maxim,pu-fps-master-slot = <MAX77851_FPS_MX_MASTER_SLOT_0>;
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maxim,power-down-time-period-us = <FPS_PERIOD_4KHZ_100US>;
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maxim,power-up-time-period-us = <FPS_PERIOD_32KHZ_244US>;
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maxim,fps-enable = <MAX77851_FPS_ENABLE>;
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maxim,abort-enable = <MAX77851_FPS_ABORT_ENABLE>;
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maxim,sleep-enable = <MAX77851_FPS_SLEEP_ENABLE>;
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maxim,abort-mode = <MAX77851_FPS_ABORT_NEXT_MASTER_SLOT>;
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maxim,pd-max-slot = <MAX77851_FPS_12_SLOTS>;
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maxim,pu-max-slot = <MAX77851_FPS_10_SLOTS>;
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#maxim,fps-event-source = <MAX77851_FPS_EVENT_SRC_EN0>;
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};
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};
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};
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