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linux-nv-oot/Documentation/devicetree/bindings/mfd/max77851.yaml
Shubhi Garg 1ab8a495fc 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>
2023-09-14 13:25:12 -07:00

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