1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Maxim8925 Interface
4 *
5 * Copyright (C) 2009 Marvell International Ltd.
6 * Haojian Zhuang <haojian.zhuang@marvell.com>
7 */
8
9#ifndef __LINUX_MFD_MAX8925_H
10#define __LINUX_MFD_MAX8925_H
11
12#include <linux/mutex.h>
13#include <linux/interrupt.h>
14
15/* Unified sub device IDs for MAX8925 */
16enum {
17 MAX8925_ID_SD1,
18 MAX8925_ID_SD2,
19 MAX8925_ID_SD3,
20 MAX8925_ID_LDO1,
21 MAX8925_ID_LDO2,
22 MAX8925_ID_LDO3,
23 MAX8925_ID_LDO4,
24 MAX8925_ID_LDO5,
25 MAX8925_ID_LDO6,
26 MAX8925_ID_LDO7,
27 MAX8925_ID_LDO8,
28 MAX8925_ID_LDO9,
29 MAX8925_ID_LDO10,
30 MAX8925_ID_LDO11,
31 MAX8925_ID_LDO12,
32 MAX8925_ID_LDO13,
33 MAX8925_ID_LDO14,
34 MAX8925_ID_LDO15,
35 MAX8925_ID_LDO16,
36 MAX8925_ID_LDO17,
37 MAX8925_ID_LDO18,
38 MAX8925_ID_LDO19,
39 MAX8925_ID_LDO20,
40 MAX8925_ID_MAX,
41};
42
43enum {
44 /*
45 * Charging current threshold trigger going from fast charge
46 * to TOPOFF charge. From 5% to 20% of fasting charging current.
47 */
48 MAX8925_TOPOFF_THR_5PER,
49 MAX8925_TOPOFF_THR_10PER,
50 MAX8925_TOPOFF_THR_15PER,
51 MAX8925_TOPOFF_THR_20PER,
52};
53
54enum {
55 /* Fast charging current */
56 MAX8925_FCHG_85MA,
57 MAX8925_FCHG_300MA,
58 MAX8925_FCHG_460MA,
59 MAX8925_FCHG_600MA,
60 MAX8925_FCHG_700MA,
61 MAX8925_FCHG_800MA,
62 MAX8925_FCHG_900MA,
63 MAX8925_FCHG_1000MA,
64};
65
66/* Charger registers */
67#define MAX8925_CHG_IRQ1 (0x7e)
68#define MAX8925_CHG_IRQ2 (0x7f)
69#define MAX8925_CHG_IRQ1_MASK (0x80)
70#define MAX8925_CHG_IRQ2_MASK (0x81)
71#define MAX8925_CHG_STATUS (0x82)
72
73/* GPM registers */
74#define MAX8925_SYSENSEL (0x00)
75#define MAX8925_ON_OFF_IRQ1 (0x01)
76#define MAX8925_ON_OFF_IRQ1_MASK (0x02)
77#define MAX8925_ON_OFF_STATUS (0x03)
78#define MAX8925_ON_OFF_IRQ2 (0x0d)
79#define MAX8925_ON_OFF_IRQ2_MASK (0x0e)
80#define MAX8925_RESET_CNFG (0x0f)
81
82/* Touch registers */
83#define MAX8925_TSC_IRQ (0x00)
84#define MAX8925_TSC_IRQ_MASK (0x01)
85#define MAX8925_TSC_CNFG1 (0x02)
86#define MAX8925_ADC_SCHED (0x10)
87#define MAX8925_ADC_RES_END (0x6f)
88
89#define MAX8925_NREF_OK (1 << 4)
90
91/* RTC registers */
92#define MAX8925_ALARM0_CNTL (0x18)
93#define MAX8925_ALARM1_CNTL (0x19)
94#define MAX8925_RTC_IRQ (0x1c)
95#define MAX8925_RTC_IRQ_MASK (0x1d)
96#define MAX8925_MPL_CNTL (0x1e)
97
98/* WLED registers */
99#define MAX8925_WLED_MODE_CNTL (0x84)
100#define MAX8925_WLED_CNTL (0x85)
101
102/* MAX8925 Registers */
103#define MAX8925_SDCTL1 (0x04)
104#define MAX8925_SDCTL2 (0x07)
105#define MAX8925_SDCTL3 (0x0A)
106#define MAX8925_SDV1 (0x06)
107#define MAX8925_SDV2 (0x09)
108#define MAX8925_SDV3 (0x0C)
109#define MAX8925_LDOCTL1 (0x18)
110#define MAX8925_LDOCTL2 (0x1C)
111#define MAX8925_LDOCTL3 (0x20)
112#define MAX8925_LDOCTL4 (0x24)
113#define MAX8925_LDOCTL5 (0x28)
114#define MAX8925_LDOCTL6 (0x2C)
115#define MAX8925_LDOCTL7 (0x30)
116#define MAX8925_LDOCTL8 (0x34)
117#define MAX8925_LDOCTL9 (0x38)
118#define MAX8925_LDOCTL10 (0x3C)
119#define MAX8925_LDOCTL11 (0x40)
120#define MAX8925_LDOCTL12 (0x44)
121#define MAX8925_LDOCTL13 (0x48)
122#define MAX8925_LDOCTL14 (0x4C)
123#define MAX8925_LDOCTL15 (0x50)
124#define MAX8925_LDOCTL16 (0x10)
125#define MAX8925_LDOCTL17 (0x14)
126#define MAX8925_LDOCTL18 (0x72)
127#define MAX8925_LDOCTL19 (0x5C)
128#define MAX8925_LDOCTL20 (0x9C)
129#define MAX8925_LDOVOUT1 (0x1A)
130#define MAX8925_LDOVOUT2 (0x1E)
131#define MAX8925_LDOVOUT3 (0x22)
132#define MAX8925_LDOVOUT4 (0x26)
133#define MAX8925_LDOVOUT5 (0x2A)
134#define MAX8925_LDOVOUT6 (0x2E)
135#define MAX8925_LDOVOUT7 (0x32)
136#define MAX8925_LDOVOUT8 (0x36)
137#define MAX8925_LDOVOUT9 (0x3A)
138#define MAX8925_LDOVOUT10 (0x3E)
139#define MAX8925_LDOVOUT11 (0x42)
140#define MAX8925_LDOVOUT12 (0x46)
141#define MAX8925_LDOVOUT13 (0x4A)
142#define MAX8925_LDOVOUT14 (0x4E)
143#define MAX8925_LDOVOUT15 (0x52)
144#define MAX8925_LDOVOUT16 (0x12)
145#define MAX8925_LDOVOUT17 (0x16)
146#define MAX8925_LDOVOUT18 (0x74)
147#define MAX8925_LDOVOUT19 (0x5E)
148#define MAX8925_LDOVOUT20 (0x9E)
149
150/* bit definitions */
151#define CHG_IRQ1_MASK (0x07)
152#define CHG_IRQ2_MASK (0xff)
153#define ON_OFF_IRQ1_MASK (0xff)
154#define ON_OFF_IRQ2_MASK (0x03)
155#define TSC_IRQ_MASK (0x03)
156#define RTC_IRQ_MASK (0x0c)
157
158#define MAX8925_NAME_SIZE (32)
159
160/* IRQ definitions */
161enum {
162 MAX8925_IRQ_VCHG_DC_OVP,
163 MAX8925_IRQ_VCHG_DC_F,
164 MAX8925_IRQ_VCHG_DC_R,
165 MAX8925_IRQ_VCHG_THM_OK_R,
166 MAX8925_IRQ_VCHG_THM_OK_F,
167 MAX8925_IRQ_VCHG_SYSLOW_F,
168 MAX8925_IRQ_VCHG_SYSLOW_R,
169 MAX8925_IRQ_VCHG_RST,
170 MAX8925_IRQ_VCHG_DONE,
171 MAX8925_IRQ_VCHG_TOPOFF,
172 MAX8925_IRQ_VCHG_TMR_FAULT,
173 MAX8925_IRQ_GPM_RSTIN,
174 MAX8925_IRQ_GPM_MPL,
175 MAX8925_IRQ_GPM_SW_3SEC,
176 MAX8925_IRQ_GPM_EXTON_F,
177 MAX8925_IRQ_GPM_EXTON_R,
178 MAX8925_IRQ_GPM_SW_1SEC,
179 MAX8925_IRQ_GPM_SW_F,
180 MAX8925_IRQ_GPM_SW_R,
181 MAX8925_IRQ_GPM_SYSCKEN_F,
182 MAX8925_IRQ_GPM_SYSCKEN_R,
183 MAX8925_IRQ_RTC_ALARM1,
184 MAX8925_IRQ_RTC_ALARM0,
185 MAX8925_IRQ_TSC_STICK,
186 MAX8925_IRQ_TSC_NSTICK,
187 MAX8925_NR_IRQS,
188};
189
190
191
192struct max8925_chip {
193 struct device *dev;
194 struct i2c_client *i2c;
195 struct i2c_client *adc;
196 struct i2c_client *rtc;
197 struct mutex io_lock;
198 struct mutex irq_lock;
199
200 int irq_base;
201 int core_irq;
202 int tsc_irq;
203 unsigned int wakeup_flag;
204};
205
206struct max8925_backlight_pdata {
207 int lxw_scl; /* 0/1 -- 0.8Ohm/0.4Ohm */
208 int lxw_freq; /* 700KHz ~ 1400KHz */
209 int dual_string; /* 0/1 -- single/dual string */
210};
211
212struct max8925_touch_pdata {
213 unsigned int flags;
214};
215
216struct max8925_power_pdata {
217 int (*set_charger)(int);
218 unsigned batt_detect:1;
219 unsigned topoff_threshold:2;
220 unsigned fast_charge:3; /* charge current */
221 unsigned no_temp_support:1; /* set if no temperature detect */
222 unsigned no_insert_detect:1; /* set if no ac insert detect */
223 char **supplied_to;
224 int num_supplicants;
225};
226
227/*
228 * irq_base: stores IRQ base number of MAX8925 in platform
229 * tsc_irq: stores IRQ number of MAX8925 TSC
230 */
231struct max8925_platform_data {
232 struct max8925_backlight_pdata *backlight;
233 struct max8925_touch_pdata *touch;
234 struct max8925_power_pdata *power;
235 struct regulator_init_data *sd1;
236 struct regulator_init_data *sd2;
237 struct regulator_init_data *sd3;
238 struct regulator_init_data *ldo1;
239 struct regulator_init_data *ldo2;
240 struct regulator_init_data *ldo3;
241 struct regulator_init_data *ldo4;
242 struct regulator_init_data *ldo5;
243 struct regulator_init_data *ldo6;
244 struct regulator_init_data *ldo7;
245 struct regulator_init_data *ldo8;
246 struct regulator_init_data *ldo9;
247 struct regulator_init_data *ldo10;
248 struct regulator_init_data *ldo11;
249 struct regulator_init_data *ldo12;
250 struct regulator_init_data *ldo13;
251 struct regulator_init_data *ldo14;
252 struct regulator_init_data *ldo15;
253 struct regulator_init_data *ldo16;
254 struct regulator_init_data *ldo17;
255 struct regulator_init_data *ldo18;
256 struct regulator_init_data *ldo19;
257 struct regulator_init_data *ldo20;
258
259 int irq_base;
260 int tsc_irq;
261};
262
263extern int max8925_reg_read(struct i2c_client *, int);
264extern int max8925_reg_write(struct i2c_client *, int, unsigned char);
265extern int max8925_bulk_read(struct i2c_client *, int, int, unsigned char *);
266extern int max8925_bulk_write(struct i2c_client *, int, int, unsigned char *);
267extern int max8925_set_bits(struct i2c_client *, int, unsigned char,
268 unsigned char);
269
270extern int max8925_device_init(struct max8925_chip *,
271 struct max8925_platform_data *);
272extern void max8925_device_exit(struct max8925_chip *);
273#endif /* __LINUX_MFD_MAX8925_H */
274
275

source code of linux/include/linux/mfd/max8925.h