Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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_BD96801,
20 ROHM_CHIP_TYPE_BD96802,
21 ROHM_CHIP_TYPE_BD96805,
22 ROHM_CHIP_TYPE_BD96806,
23 ROHM_CHIP_TYPE_AMOUNT
24};
25
26struct rohm_regmap_dev {
27 struct device *dev;
28 struct regmap *regmap;
29};
30
31#define ROHM_DVS_LEVEL_RUN BIT(0)
32#define ROHM_DVS_LEVEL_IDLE BIT(1)
33#define ROHM_DVS_LEVEL_SUSPEND BIT(2)
34#define ROHM_DVS_LEVEL_LPSR BIT(3)
35#define ROHM_DVS_LEVEL_SNVS BIT(4)
36#define ROHM_DVS_LEVEL_VALID_AMOUNT 5
37#define ROHM_DVS_LEVEL_UNKNOWN 0
38
39/**
40 * struct rohm_dvs_config - dynamic voltage scaling register descriptions
41 *
42 * @level_map: bitmap representing supported run-levels for this
43 * regulator
44 * @run_reg: register address for regulator config at 'run' state
45 * @run_mask: value mask for regulator voltages at 'run' state
46 * @run_on_mask: enable mask for regulator at 'run' state
47 * @idle_reg: register address for regulator config at 'idle' state
48 * @idle_mask: value mask for regulator voltages at 'idle' state
49 * @idle_on_mask: enable mask for regulator at 'idle' state
50 * @suspend_reg: register address for regulator config at 'suspend' state
51 * @suspend_mask: value mask for regulator voltages at 'suspend' state
52 * @suspend_on_mask: enable mask for regulator at 'suspend' state
53 * @lpsr_reg: register address for regulator config at 'lpsr' state
54 * @lpsr_mask: value mask for regulator voltages at 'lpsr' state
55 * @lpsr_on_mask: enable mask for regulator at 'lpsr' state
56 *
57 * Description of ROHM PMICs voltage configuration registers for different
58 * system states. This is used to correctly configure the PMIC at startup
59 * based on values read from DT.
60 */
61struct rohm_dvs_config {
62 uint64_t level_map;
63 unsigned int run_reg;
64 unsigned int run_mask;
65 unsigned int run_on_mask;
66 unsigned int idle_reg;
67 unsigned int idle_mask;
68 unsigned int idle_on_mask;
69 unsigned int suspend_reg;
70 unsigned int suspend_mask;
71 unsigned int suspend_on_mask;
72 unsigned int lpsr_reg;
73 unsigned int lpsr_mask;
74 unsigned int lpsr_on_mask;
75 unsigned int snvs_reg;
76 unsigned int snvs_mask;
77 unsigned int snvs_on_mask;
78};
79
80#if IS_ENABLED(CONFIG_REGULATOR_ROHM)
81int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
82 struct device_node *np,
83 const struct regulator_desc *desc,
84 struct regmap *regmap);
85
86int rohm_regulator_set_voltage_sel_restricted(struct regulator_dev *rdev,
87 unsigned int sel);
88#endif
89
90#endif