| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * max8973-regulator.h -- MAXIM 8973 regulator |
| * |
| * Interface for regulator driver for MAXIM 8973 DC-DC step-down |
| * switching regulator. |
| * |
| * Copyright (C) 2012 NVIDIA Corporation |
| |
| * Author: Laxman Dewangan <ldewangan@nvidia.com> |
| */ |
| |
| #ifndef __LINUX_REGULATOR_MAX8973_H |
| #define __LINUX_REGULATOR_MAX8973_H |
| |
| /* |
| * Control flags for configuration of the device. |
| * Client need to pass this information with ORed |
| */ |
| #define MAX8973_CONTROL_REMOTE_SENSE_ENABLE 0x00000001 |
| #define MAX8973_CONTROL_FALLING_SLEW_RATE_ENABLE 0x00000002 |
| #define MAX8973_CONTROL_OUTPUT_ACTIVE_DISCH_ENABLE 0x00000004 |
| #define MAX8973_CONTROL_BIAS_ENABLE 0x00000008 |
| #define MAX8973_CONTROL_PULL_DOWN_ENABLE 0x00000010 |
| #define MAX8973_CONTROL_FREQ_SHIFT_9PER_ENABLE 0x00000020 |
| |
| #define MAX8973_CONTROL_CLKADV_TRIP_DISABLED 0x00000000 |
| #define MAX8973_CONTROL_CLKADV_TRIP_75mV_PER_US 0x00010000 |
| #define MAX8973_CONTROL_CLKADV_TRIP_150mV_PER_US 0x00020000 |
| #define MAX8973_CONTROL_CLKADV_TRIP_75mV_PER_US_HIST_DIS 0x00030000 |
| |
| #define MAX8973_CONTROL_INDUCTOR_VALUE_NOMINAL 0x00000000 |
| #define MAX8973_CONTROL_INDUCTOR_VALUE_MINUS_30_PER 0x00100000 |
| #define MAX8973_CONTROL_INDUCTOR_VALUE_PLUS_30_PER 0x00200000 |
| #define MAX8973_CONTROL_INDUCTOR_VALUE_PLUS_60_PER 0x00300000 |
| |
| /* |
| * struct max8973_regulator_platform_data - max8973 regulator platform data. |
| * |
| * @reg_init_data: The regulator init data. |
| * @control_flags: Control flags which are ORed value of above flags to |
| * configure device. |
| * @junction_temp_warning: Junction temp in millicelcius on which warning need |
| * to be set. Thermal functionality is only supported on |
| * MAX77621. The threshold warning supported by MAX77621 |
| * are 120C and 140C. |
| * @enable_ext_control: Enable the voltage enable/disable through external |
| * control signal from EN input pin. If it is false then |
| * voltage output will be enabled/disabled through EN bit of |
| * device register. |
| * @enable_gpio: Enable GPIO. If EN pin is controlled through GPIO from host |
| * then GPIO number can be provided. If no GPIO controlled then |
| * it should be -1. |
| * @dvs_gpio: GPIO for dvs. It should be -1 if this is tied with fixed logic. |
| * @dvs_def_state: Default state of dvs. 1 if it is high else 0. |
| */ |
| struct max8973_regulator_platform_data { |
| struct regulator_init_data *reg_init_data; |
| unsigned long control_flags; |
| unsigned long junction_temp_warning; |
| bool enable_ext_control; |
| int enable_gpio; |
| int dvs_gpio; |
| unsigned dvs_def_state:1; |
| }; |
| |
| #endif /* __LINUX_REGULATOR_MAX8973_H */ |
