1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/* Copyright (C) 2018 ROHM Semiconductors */
3
4#ifndef __LINUX_MFD_ROHM_H__
5#define __LINUX_MFD_ROHM_H__
6
7#include <linux/regmap.h>
8#include <linux/regulator/driver.h>
9
10enum rohm_chip_type {
11 ROHM_CHIP_TYPE_BD9571,
12 ROHM_CHIP_TYPE_BD9573,
13 ROHM_CHIP_TYPE_BD9574,
14 ROHM_CHIP_TYPE_BD9576,
15 ROHM_CHIP_TYPE_BD71815,
16 ROHM_CHIP_TYPE_BD71828,
17 ROHM_CHIP_TYPE_BD71837,
18 ROHM_CHIP_TYPE_BD71847,
19 ROHM_CHIP_TYPE_AMOUNT
20};
21
22struct rohm_regmap_dev {
23 struct device *dev;
24 struct regmap *regmap;
25};
26
27#define ROHM_DVS_LEVEL_RUN BIT(0)
28#define ROHM_DVS_LEVEL_IDLE BIT(1)
29#define ROHM_DVS_LEVEL_SUSPEND BIT(2)
30#define ROHM_DVS_LEVEL_LPSR BIT(3)
31#define ROHM_DVS_LEVEL_SNVS BIT(4)
32#define ROHM_DVS_LEVEL_VALID_AMOUNT 5
33#define ROHM_DVS_LEVEL_UNKNOWN 0
34
35/**
36 * struct rohm_dvs_config - dynamic voltage scaling register descriptions
37 *
38 * @level_map: bitmap representing supported run-levels for this
39 * regulator
40 * @run_reg: register address for regulator config at 'run' state
41 * @run_mask: value mask for regulator voltages at 'run' state
42 * @run_on_mask: enable mask for regulator at 'run' state
43 * @idle_reg: register address for regulator config at 'idle' state
44 * @idle_mask: value mask for regulator voltages at 'idle' state
45 * @idle_on_mask: enable mask for regulator at 'idle' state
46 * @suspend_reg: register address for regulator config at 'suspend' state
47 * @suspend_mask: value mask for regulator voltages at 'suspend' state
48 * @suspend_on_mask: enable mask for regulator at 'suspend' state
49 * @lpsr_reg: register address for regulator config at 'lpsr' state
50 * @lpsr_mask: value mask for regulator voltages at 'lpsr' state
51 * @lpsr_on_mask: enable mask for regulator at 'lpsr' state
52 *
53 * Description of ROHM PMICs voltage configuration registers for different
54 * system states. This is used to correctly configure the PMIC at startup
55 * based on values read from DT.
56 */
57struct rohm_dvs_config {
58 uint64_t level_map;
59 unsigned int run_reg;
60 unsigned int run_mask;
61 unsigned int run_on_mask;
62 unsigned int idle_reg;
63 unsigned int idle_mask;
64 unsigned int idle_on_mask;
65 unsigned int suspend_reg;
66 unsigned int suspend_mask;
67 unsigned int suspend_on_mask;
68 unsigned int lpsr_reg;
69 unsigned int lpsr_mask;
70 unsigned int lpsr_on_mask;
71 unsigned int snvs_reg;
72 unsigned int snvs_mask;
73 unsigned int snvs_on_mask;
74};
75
76#if IS_ENABLED(CONFIG_REGULATOR_ROHM)
77int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
78 struct device_node *np,
79 const struct regulator_desc *desc,
80 struct regmap *regmap);
81
82int rohm_regulator_set_voltage_sel_restricted(struct regulator_dev *rdev,
83 unsigned int sel);
84#endif
85
86#endif
87

source code of linux/include/linux/mfd/rohm-generic.h