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 */
53struct 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 */