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- /* 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 <[email protected]>
- */
- #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 */
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