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 */
16 enum {
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 
43 enum {
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 
54 enum {
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 */
161 enum {
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 
192 struct 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 
206 struct 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 
212 struct max8925_touch_pdata {
213 	unsigned int		flags;
214 };
215 
216 struct 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  */
231 struct 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 
263 extern int max8925_reg_read(struct i2c_client *, int);
264 extern int max8925_reg_write(struct i2c_client *, int, unsigned char);
265 extern int max8925_bulk_read(struct i2c_client *, int, int, unsigned char *);
266 extern int max8925_bulk_write(struct i2c_client *, int, int, unsigned char *);
267 extern int max8925_set_bits(struct i2c_client *, int, unsigned char,
268 			unsigned char);
269 
270 extern int max8925_device_init(struct max8925_chip *,
271 				struct max8925_platform_data *);
272 extern void max8925_device_exit(struct max8925_chip *);
273 #endif /* __LINUX_MFD_MAX8925_H */
274 
275