1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * max8973-regulator.h -- MAXIM 8973 regulator 4 * 5 * Interface for regulator driver for MAXIM 8973 DC-DC step-down 6 * switching regulator. 7 * 8 * Copyright (C) 2012 NVIDIA Corporation 9 10 * Author: Laxman Dewangan <ldewangan@nvidia.com> 11 */ 12 13 #ifndef __LINUX_REGULATOR_MAX8973_H 14 #define __LINUX_REGULATOR_MAX8973_H 15 16 /* 17 * Control flags for configuration of the device. 18 * Client need to pass this information with ORed 19 */ 20 #define MAX8973_CONTROL_REMOTE_SENSE_ENABLE 0x00000001 21 #define MAX8973_CONTROL_FALLING_SLEW_RATE_ENABLE 0x00000002 22 #define MAX8973_CONTROL_OUTPUT_ACTIVE_DISCH_ENABLE 0x00000004 23 #define MAX8973_CONTROL_BIAS_ENABLE 0x00000008 24 #define MAX8973_CONTROL_PULL_DOWN_ENABLE 0x00000010 25 #define MAX8973_CONTROL_FREQ_SHIFT_9PER_ENABLE 0x00000020 26 27 #define MAX8973_CONTROL_CLKADV_TRIP_DISABLED 0x00000000 28 #define MAX8973_CONTROL_CLKADV_TRIP_75mV_PER_US 0x00010000 29 #define MAX8973_CONTROL_CLKADV_TRIP_150mV_PER_US 0x00020000 30 #define MAX8973_CONTROL_CLKADV_TRIP_75mV_PER_US_HIST_DIS 0x00030000 31 32 #define MAX8973_CONTROL_INDUCTOR_VALUE_NOMINAL 0x00000000 33 #define MAX8973_CONTROL_INDUCTOR_VALUE_MINUS_30_PER 0x00100000 34 #define MAX8973_CONTROL_INDUCTOR_VALUE_PLUS_30_PER 0x00200000 35 #define MAX8973_CONTROL_INDUCTOR_VALUE_PLUS_60_PER 0x00300000 36 37 /* 38 * struct max8973_regulator_platform_data - max8973 regulator platform data. 39 * 40 * @reg_init_data: The regulator init data. 41 * @control_flags: Control flags which are ORed value of above flags to 42 * configure device. 43 * @junction_temp_warning: Junction temp in millicelcius on which warning need 44 * to be set. Thermal functionality is only supported on 45 * MAX77621. The threshold warning supported by MAX77621 46 * are 120C and 140C. 47 * @enable_ext_control: Enable the voltage enable/disable through external 48 * control signal from EN input pin. If it is false then 49 * voltage output will be enabled/disabled through EN bit of 50 * device register. 51 * @dvs_def_state: Default state of dvs. 1 if it is high else 0. 52 */ 53 struct max8973_regulator_platform_data { 54 struct regulator_init_data *reg_init_data; 55 unsigned long control_flags; 56 unsigned long junction_temp_warning; 57 bool enable_ext_control; 58 unsigned dvs_def_state:1; 59 }; 60 61 #endif /* __LINUX_REGULATOR_MAX8973_H */ 62