include/linux/regulator/max8973-regulator.h

   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 */