1*5928f538SLaxman Dewangan /* 2*5928f538SLaxman Dewangan * max8973-regulator.h -- MAXIM 8973 regulator 3*5928f538SLaxman Dewangan * 4*5928f538SLaxman Dewangan * Interface for regulator driver for MAXIM 8973 DC-DC step-down 5*5928f538SLaxman Dewangan * switching regulator. 6*5928f538SLaxman Dewangan * 7*5928f538SLaxman Dewangan * Copyright (C) 2012 NVIDIA Corporation 8*5928f538SLaxman Dewangan 9*5928f538SLaxman Dewangan * Author: Laxman Dewangan <ldewangan@nvidia.com> 10*5928f538SLaxman Dewangan * 11*5928f538SLaxman Dewangan * This program is free software; you can redistribute it and/or modify 12*5928f538SLaxman Dewangan * it under the terms of the GNU General Public License as published by 13*5928f538SLaxman Dewangan * the Free Software Foundation; either version 2 of the License, or 14*5928f538SLaxman Dewangan * (at your option) any later version. 15*5928f538SLaxman Dewangan * 16*5928f538SLaxman Dewangan * This program is distributed in the hope that it will be useful, but WITHOUT 17*5928f538SLaxman Dewangan * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 18*5928f538SLaxman Dewangan * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 19*5928f538SLaxman Dewangan * more details. 20*5928f538SLaxman Dewangan * 21*5928f538SLaxman Dewangan * You should have received a copy of the GNU General Public License along 22*5928f538SLaxman Dewangan * with this program; if not, write to the Free Software Foundation, Inc., 23*5928f538SLaxman Dewangan * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 24*5928f538SLaxman Dewangan * 25*5928f538SLaxman Dewangan */ 26*5928f538SLaxman Dewangan 27*5928f538SLaxman Dewangan #ifndef __LINUX_REGULATOR_MAX8973_H 28*5928f538SLaxman Dewangan #define __LINUX_REGULATOR_MAX8973_H 29*5928f538SLaxman Dewangan 30*5928f538SLaxman Dewangan /* 31*5928f538SLaxman Dewangan * Control flags for configuration of the device. 32*5928f538SLaxman Dewangan * Client need to pass this information with ORed 33*5928f538SLaxman Dewangan */ 34*5928f538SLaxman Dewangan #define MAX8973_CONTROL_REMOTE_SENSE_ENABLE 0x00000001 35*5928f538SLaxman Dewangan #define MAX8973_CONTROL_FALLING_SLEW_RATE_ENABLE 0x00000002 36*5928f538SLaxman Dewangan #define MAX8973_CONTROL_OUTPUT_ACTIVE_DISCH_ENABLE 0x00000004 37*5928f538SLaxman Dewangan #define MAX8973_CONTROL_BIAS_ENABLE 0x00000008 38*5928f538SLaxman Dewangan #define MAX8973_CONTROL_PULL_DOWN_ENABLE 0x00000010 39*5928f538SLaxman Dewangan #define MAX8973_CONTROL_FREQ_SHIFT_9PER_ENABLE 0x00000020 40*5928f538SLaxman Dewangan 41*5928f538SLaxman Dewangan #define MAX8973_CONTROL_CLKADV_TRIP_DISABLED 0x00000000 42*5928f538SLaxman Dewangan #define MAX8973_CONTROL_CLKADV_TRIP_75mV_PER_US 0x00010000 43*5928f538SLaxman Dewangan #define MAX8973_CONTROL_CLKADV_TRIP_150mV_PER_US 0x00020000 44*5928f538SLaxman Dewangan #define MAX8973_CONTROL_CLKADV_TRIP_75mV_PER_US_HIST_DIS 0x00030000 45*5928f538SLaxman Dewangan 46*5928f538SLaxman Dewangan #define MAX8973_CONTROL_INDUCTOR_VALUE_NOMINAL 0x00000000 47*5928f538SLaxman Dewangan #define MAX8973_CONTROL_INDUCTOR_VALUE_MINUS_30_PER 0x00100000 48*5928f538SLaxman Dewangan #define MAX8973_CONTROL_INDUCTOR_VALUE_PLUS_30_PER 0x00200000 49*5928f538SLaxman Dewangan #define MAX8973_CONTROL_INDUCTOR_VALUE_PLUS_60_PER 0x00300000 50*5928f538SLaxman Dewangan 51*5928f538SLaxman Dewangan /* 52*5928f538SLaxman Dewangan * struct max8973_regulator_platform_data - max8973 regulator platform data. 53*5928f538SLaxman Dewangan * 54*5928f538SLaxman Dewangan * @reg_init_data: The regulator init data. 55*5928f538SLaxman Dewangan * @control_flags: Control flags which are ORed value of above flags to 56*5928f538SLaxman Dewangan * configure device. 57*5928f538SLaxman Dewangan * @enable_ext_control: Enable the voltage enable/disable through external 58*5928f538SLaxman Dewangan * control signal from EN input pin. If it is false then 59*5928f538SLaxman Dewangan * voltage output will be enabled/disabled through EN bit of 60*5928f538SLaxman Dewangan * device register. 61*5928f538SLaxman Dewangan * @dvs_gpio: GPIO for dvs. It should be -1 if this is tied with fixed logic. 62*5928f538SLaxman Dewangan * @dvs_def_state: Default state of dvs. 1 if it is high else 0. 63*5928f538SLaxman Dewangan */ 64*5928f538SLaxman Dewangan struct max8973_regulator_platform_data { 65*5928f538SLaxman Dewangan struct regulator_init_data *reg_init_data; 66*5928f538SLaxman Dewangan unsigned long control_flags; 67*5928f538SLaxman Dewangan bool enable_ext_control; 68*5928f538SLaxman Dewangan int dvs_gpio; 69*5928f538SLaxman Dewangan unsigned dvs_def_state:1; 70*5928f538SLaxman Dewangan }; 71*5928f538SLaxman Dewangan 72*5928f538SLaxman Dewangan #endif /* __LINUX_REGULATOR_MAX8973_H */ 73