1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * max8973-regulator.h -- MAXIM 8973 regulator 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Interface for regulator driver for MAXIM 8973 DC-DC step-down 6*4882a593Smuzhiyun * switching regulator. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Copyright (C) 2012 NVIDIA Corporation 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun * Author: Laxman Dewangan <ldewangan@nvidia.com> 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #ifndef __LINUX_REGULATOR_MAX8973_H 14*4882a593Smuzhiyun #define __LINUX_REGULATOR_MAX8973_H 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun /* 17*4882a593Smuzhiyun * Control flags for configuration of the device. 18*4882a593Smuzhiyun * Client need to pass this information with ORed 19*4882a593Smuzhiyun */ 20*4882a593Smuzhiyun #define MAX8973_CONTROL_REMOTE_SENSE_ENABLE 0x00000001 21*4882a593Smuzhiyun #define MAX8973_CONTROL_FALLING_SLEW_RATE_ENABLE 0x00000002 22*4882a593Smuzhiyun #define MAX8973_CONTROL_OUTPUT_ACTIVE_DISCH_ENABLE 0x00000004 23*4882a593Smuzhiyun #define MAX8973_CONTROL_BIAS_ENABLE 0x00000008 24*4882a593Smuzhiyun #define MAX8973_CONTROL_PULL_DOWN_ENABLE 0x00000010 25*4882a593Smuzhiyun #define MAX8973_CONTROL_FREQ_SHIFT_9PER_ENABLE 0x00000020 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun #define MAX8973_CONTROL_CLKADV_TRIP_DISABLED 0x00000000 28*4882a593Smuzhiyun #define MAX8973_CONTROL_CLKADV_TRIP_75mV_PER_US 0x00010000 29*4882a593Smuzhiyun #define MAX8973_CONTROL_CLKADV_TRIP_150mV_PER_US 0x00020000 30*4882a593Smuzhiyun #define MAX8973_CONTROL_CLKADV_TRIP_75mV_PER_US_HIST_DIS 0x00030000 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun #define MAX8973_CONTROL_INDUCTOR_VALUE_NOMINAL 0x00000000 33*4882a593Smuzhiyun #define MAX8973_CONTROL_INDUCTOR_VALUE_MINUS_30_PER 0x00100000 34*4882a593Smuzhiyun #define MAX8973_CONTROL_INDUCTOR_VALUE_PLUS_30_PER 0x00200000 35*4882a593Smuzhiyun #define MAX8973_CONTROL_INDUCTOR_VALUE_PLUS_60_PER 0x00300000 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun /* 38*4882a593Smuzhiyun * struct max8973_regulator_platform_data - max8973 regulator platform data. 39*4882a593Smuzhiyun * 40*4882a593Smuzhiyun * @reg_init_data: The regulator init data. 41*4882a593Smuzhiyun * @control_flags: Control flags which are ORed value of above flags to 42*4882a593Smuzhiyun * configure device. 43*4882a593Smuzhiyun * @junction_temp_warning: Junction temp in millicelcius on which warning need 44*4882a593Smuzhiyun * to be set. Thermal functionality is only supported on 45*4882a593Smuzhiyun * MAX77621. The threshold warning supported by MAX77621 46*4882a593Smuzhiyun * are 120C and 140C. 47*4882a593Smuzhiyun * @enable_ext_control: Enable the voltage enable/disable through external 48*4882a593Smuzhiyun * control signal from EN input pin. If it is false then 49*4882a593Smuzhiyun * voltage output will be enabled/disabled through EN bit of 50*4882a593Smuzhiyun * device register. 51*4882a593Smuzhiyun * @enable_gpio: Enable GPIO. If EN pin is controlled through GPIO from host 52*4882a593Smuzhiyun * then GPIO number can be provided. If no GPIO controlled then 53*4882a593Smuzhiyun * it should be -1. 54*4882a593Smuzhiyun * @dvs_gpio: GPIO for dvs. It should be -1 if this is tied with fixed logic. 55*4882a593Smuzhiyun * @dvs_def_state: Default state of dvs. 1 if it is high else 0. 56*4882a593Smuzhiyun */ 57*4882a593Smuzhiyun struct max8973_regulator_platform_data { 58*4882a593Smuzhiyun struct regulator_init_data *reg_init_data; 59*4882a593Smuzhiyun unsigned long control_flags; 60*4882a593Smuzhiyun unsigned long junction_temp_warning; 61*4882a593Smuzhiyun bool enable_ext_control; 62*4882a593Smuzhiyun int enable_gpio; 63*4882a593Smuzhiyun int dvs_gpio; 64*4882a593Smuzhiyun unsigned dvs_def_state:1; 65*4882a593Smuzhiyun }; 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun #endif /* __LINUX_REGULATOR_MAX8973_H */ 68