1 /*
2  * max8997-private.h - Voltage regulator driver for the Maxim 8997
3  *
4  *  Copyright (C) 2010 Samsung Electrnoics
5  *  MyungJoo Ham <myungjoo.ham@samsung.com>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20  */
21 
22 #ifndef __LINUX_MFD_MAX8997_PRIV_H
23 #define __LINUX_MFD_MAX8997_PRIV_H
24 
25 #include <linux/i2c.h>
26 #include <linux/export.h>
27 #include <linux/irqdomain.h>
28 
29 #define MAX8997_REG_INVALID	(0xff)
30 
31 enum max8997_pmic_reg {
32 	MAX8997_REG_PMIC_ID0	= 0x00,
33 	MAX8997_REG_PMIC_ID1	= 0x01,
34 	MAX8997_REG_INTSRC	= 0x02,
35 	MAX8997_REG_INT1	= 0x03,
36 	MAX8997_REG_INT2	= 0x04,
37 	MAX8997_REG_INT3	= 0x05,
38 	MAX8997_REG_INT4	= 0x06,
39 
40 	MAX8997_REG_INT1MSK	= 0x08,
41 	MAX8997_REG_INT2MSK	= 0x09,
42 	MAX8997_REG_INT3MSK	= 0x0a,
43 	MAX8997_REG_INT4MSK	= 0x0b,
44 
45 	MAX8997_REG_STATUS1	= 0x0d,
46 	MAX8997_REG_STATUS2	= 0x0e,
47 	MAX8997_REG_STATUS3	= 0x0f,
48 	MAX8997_REG_STATUS4	= 0x10,
49 
50 	MAX8997_REG_MAINCON1	= 0x13,
51 	MAX8997_REG_MAINCON2	= 0x14,
52 	MAX8997_REG_BUCKRAMP	= 0x15,
53 
54 	MAX8997_REG_BUCK1CTRL	= 0x18,
55 	MAX8997_REG_BUCK1DVS1	= 0x19,
56 	MAX8997_REG_BUCK1DVS2	= 0x1a,
57 	MAX8997_REG_BUCK1DVS3	= 0x1b,
58 	MAX8997_REG_BUCK1DVS4	= 0x1c,
59 	MAX8997_REG_BUCK1DVS5	= 0x1d,
60 	MAX8997_REG_BUCK1DVS6	= 0x1e,
61 	MAX8997_REG_BUCK1DVS7	= 0x1f,
62 	MAX8997_REG_BUCK1DVS8	= 0x20,
63 	MAX8997_REG_BUCK2CTRL	= 0x21,
64 	MAX8997_REG_BUCK2DVS1	= 0x22,
65 	MAX8997_REG_BUCK2DVS2	= 0x23,
66 	MAX8997_REG_BUCK2DVS3	= 0x24,
67 	MAX8997_REG_BUCK2DVS4	= 0x25,
68 	MAX8997_REG_BUCK2DVS5	= 0x26,
69 	MAX8997_REG_BUCK2DVS6	= 0x27,
70 	MAX8997_REG_BUCK2DVS7	= 0x28,
71 	MAX8997_REG_BUCK2DVS8	= 0x29,
72 	MAX8997_REG_BUCK3CTRL	= 0x2a,
73 	MAX8997_REG_BUCK3DVS	= 0x2b,
74 	MAX8997_REG_BUCK4CTRL	= 0x2c,
75 	MAX8997_REG_BUCK4DVS	= 0x2d,
76 	MAX8997_REG_BUCK5CTRL	= 0x2e,
77 	MAX8997_REG_BUCK5DVS1	= 0x2f,
78 	MAX8997_REG_BUCK5DVS2	= 0x30,
79 	MAX8997_REG_BUCK5DVS3	= 0x31,
80 	MAX8997_REG_BUCK5DVS4	= 0x32,
81 	MAX8997_REG_BUCK5DVS5	= 0x33,
82 	MAX8997_REG_BUCK5DVS6	= 0x34,
83 	MAX8997_REG_BUCK5DVS7	= 0x35,
84 	MAX8997_REG_BUCK5DVS8	= 0x36,
85 	MAX8997_REG_BUCK6CTRL	= 0x37,
86 	MAX8997_REG_BUCK6BPSKIPCTRL	= 0x38,
87 	MAX8997_REG_BUCK7CTRL	= 0x39,
88 	MAX8997_REG_BUCK7DVS	= 0x3a,
89 	MAX8997_REG_LDO1CTRL	= 0x3b,
90 	MAX8997_REG_LDO2CTRL	= 0x3c,
91 	MAX8997_REG_LDO3CTRL	= 0x3d,
92 	MAX8997_REG_LDO4CTRL	= 0x3e,
93 	MAX8997_REG_LDO5CTRL	= 0x3f,
94 	MAX8997_REG_LDO6CTRL	= 0x40,
95 	MAX8997_REG_LDO7CTRL	= 0x41,
96 	MAX8997_REG_LDO8CTRL	= 0x42,
97 	MAX8997_REG_LDO9CTRL	= 0x43,
98 	MAX8997_REG_LDO10CTRL	= 0x44,
99 	MAX8997_REG_LDO11CTRL	= 0x45,
100 	MAX8997_REG_LDO12CTRL	= 0x46,
101 	MAX8997_REG_LDO13CTRL	= 0x47,
102 	MAX8997_REG_LDO14CTRL	= 0x48,
103 	MAX8997_REG_LDO15CTRL	= 0x49,
104 	MAX8997_REG_LDO16CTRL	= 0x4a,
105 	MAX8997_REG_LDO17CTRL	= 0x4b,
106 	MAX8997_REG_LDO18CTRL	= 0x4c,
107 	MAX8997_REG_LDO21CTRL	= 0x4d,
108 
109 	MAX8997_REG_MBCCTRL1	= 0x50,
110 	MAX8997_REG_MBCCTRL2	= 0x51,
111 	MAX8997_REG_MBCCTRL3	= 0x52,
112 	MAX8997_REG_MBCCTRL4	= 0x53,
113 	MAX8997_REG_MBCCTRL5	= 0x54,
114 	MAX8997_REG_MBCCTRL6	= 0x55,
115 	MAX8997_REG_OTPCGHCVS	= 0x56,
116 
117 	MAX8997_REG_SAFEOUTCTRL	= 0x5a,
118 
119 	MAX8997_REG_LBCNFG1	= 0x5e,
120 	MAX8997_REG_LBCNFG2	= 0x5f,
121 	MAX8997_REG_BBCCTRL	= 0x60,
122 
123 	MAX8997_REG_FLASH1_CUR	= 0x63, /* 0x63 ~ 0x6e for FLASH */
124 	MAX8997_REG_FLASH2_CUR	= 0x64,
125 	MAX8997_REG_MOVIE_CUR	= 0x65,
126 	MAX8997_REG_GSMB_CUR	= 0x66,
127 	MAX8997_REG_BOOST_CNTL	= 0x67,
128 	MAX8997_REG_LEN_CNTL	= 0x68,
129 	MAX8997_REG_FLASH_CNTL	= 0x69,
130 	MAX8997_REG_WDT_CNTL	= 0x6a,
131 	MAX8997_REG_MAXFLASH1	= 0x6b,
132 	MAX8997_REG_MAXFLASH2	= 0x6c,
133 	MAX8997_REG_FLASHSTATUS	= 0x6d,
134 	MAX8997_REG_FLASHSTATUSMASK	= 0x6e,
135 
136 	MAX8997_REG_GPIOCNTL1	= 0x70,
137 	MAX8997_REG_GPIOCNTL2	= 0x71,
138 	MAX8997_REG_GPIOCNTL3	= 0x72,
139 	MAX8997_REG_GPIOCNTL4	= 0x73,
140 	MAX8997_REG_GPIOCNTL5	= 0x74,
141 	MAX8997_REG_GPIOCNTL6	= 0x75,
142 	MAX8997_REG_GPIOCNTL7	= 0x76,
143 	MAX8997_REG_GPIOCNTL8	= 0x77,
144 	MAX8997_REG_GPIOCNTL9	= 0x78,
145 	MAX8997_REG_GPIOCNTL10	= 0x79,
146 	MAX8997_REG_GPIOCNTL11	= 0x7a,
147 	MAX8997_REG_GPIOCNTL12	= 0x7b,
148 
149 	MAX8997_REG_LDO1CONFIG	= 0x80,
150 	MAX8997_REG_LDO2CONFIG	= 0x81,
151 	MAX8997_REG_LDO3CONFIG	= 0x82,
152 	MAX8997_REG_LDO4CONFIG	= 0x83,
153 	MAX8997_REG_LDO5CONFIG	= 0x84,
154 	MAX8997_REG_LDO6CONFIG	= 0x85,
155 	MAX8997_REG_LDO7CONFIG	= 0x86,
156 	MAX8997_REG_LDO8CONFIG	= 0x87,
157 	MAX8997_REG_LDO9CONFIG	= 0x88,
158 	MAX8997_REG_LDO10CONFIG	= 0x89,
159 	MAX8997_REG_LDO11CONFIG	= 0x8a,
160 	MAX8997_REG_LDO12CONFIG	= 0x8b,
161 	MAX8997_REG_LDO13CONFIG	= 0x8c,
162 	MAX8997_REG_LDO14CONFIG	= 0x8d,
163 	MAX8997_REG_LDO15CONFIG	= 0x8e,
164 	MAX8997_REG_LDO16CONFIG	= 0x8f,
165 	MAX8997_REG_LDO17CONFIG	= 0x90,
166 	MAX8997_REG_LDO18CONFIG	= 0x91,
167 	MAX8997_REG_LDO21CONFIG	= 0x92,
168 
169 	MAX8997_REG_DVSOKTIMER1	= 0x97,
170 	MAX8997_REG_DVSOKTIMER2	= 0x98,
171 	MAX8997_REG_DVSOKTIMER4	= 0x99,
172 	MAX8997_REG_DVSOKTIMER5	= 0x9a,
173 
174 	MAX8997_REG_PMIC_END	= 0x9b,
175 };
176 
177 enum max8997_muic_reg {
178 	MAX8997_MUIC_REG_ID		= 0x0,
179 	MAX8997_MUIC_REG_INT1		= 0x1,
180 	MAX8997_MUIC_REG_INT2		= 0x2,
181 	MAX8997_MUIC_REG_INT3		= 0x3,
182 	MAX8997_MUIC_REG_STATUS1	= 0x4,
183 	MAX8997_MUIC_REG_STATUS2	= 0x5,
184 	MAX8997_MUIC_REG_STATUS3	= 0x6,
185 	MAX8997_MUIC_REG_INTMASK1	= 0x7,
186 	MAX8997_MUIC_REG_INTMASK2	= 0x8,
187 	MAX8997_MUIC_REG_INTMASK3	= 0x9,
188 	MAX8997_MUIC_REG_CDETCTRL	= 0xa,
189 
190 	MAX8997_MUIC_REG_CONTROL1	= 0xc,
191 	MAX8997_MUIC_REG_CONTROL2	= 0xd,
192 	MAX8997_MUIC_REG_CONTROL3	= 0xe,
193 
194 	MAX8997_MUIC_REG_END		= 0xf,
195 };
196 
197 /* MAX8997-MUIC STATUS1 register */
198 #define STATUS1_ADC_SHIFT		0
199 #define STATUS1_ADCLOW_SHIFT		5
200 #define STATUS1_ADCERR_SHIFT		6
201 #define STATUS1_ADC_MASK		(0x1f << STATUS1_ADC_SHIFT)
202 #define STATUS1_ADCLOW_MASK		(0x1 << STATUS1_ADCLOW_SHIFT)
203 #define STATUS1_ADCERR_MASK		(0x1 << STATUS1_ADCERR_SHIFT)
204 
205 /* MAX8997-MUIC STATUS2 register */
206 #define STATUS2_CHGTYP_SHIFT		0
207 #define STATUS2_CHGDETRUN_SHIFT		3
208 #define STATUS2_DCDTMR_SHIFT		4
209 #define STATUS2_DBCHG_SHIFT		5
210 #define STATUS2_VBVOLT_SHIFT		6
211 #define STATUS2_CHGTYP_MASK		(0x7 << STATUS2_CHGTYP_SHIFT)
212 #define STATUS2_CHGDETRUN_MASK		(0x1 << STATUS2_CHGDETRUN_SHIFT)
213 #define STATUS2_DCDTMR_MASK		(0x1 << STATUS2_DCDTMR_SHIFT)
214 #define STATUS2_DBCHG_MASK		(0x1 << STATUS2_DBCHG_SHIFT)
215 #define STATUS2_VBVOLT_MASK		(0x1 << STATUS2_VBVOLT_SHIFT)
216 
217 /* MAX8997-MUIC STATUS3 register */
218 #define STATUS3_OVP_SHIFT		2
219 #define STATUS3_OVP_MASK		(0x1 << STATUS3_OVP_SHIFT)
220 
221 /* MAX8997-MUIC CONTROL1 register */
222 #define COMN1SW_SHIFT			0
223 #define COMP2SW_SHIFT			3
224 #define COMN1SW_MASK			(0x7 << COMN1SW_SHIFT)
225 #define COMP2SW_MASK			(0x7 << COMP2SW_SHIFT)
226 #define COMP_SW_MASK		(COMP2SW_MASK | COMN1SW_MASK)
227 
228 #define CONTROL1_SW_USB			((1 << COMP2SW_SHIFT) \
229 						| (1 << COMN1SW_SHIFT))
230 #define CONTROL1_SW_AUDIO		((2 << COMP2SW_SHIFT) \
231 						| (2 << COMN1SW_SHIFT))
232 #define CONTROL1_SW_UART		((3 << COMP2SW_SHIFT) \
233 						| (3 << COMN1SW_SHIFT))
234 #define CONTROL1_SW_OPEN		((0 << COMP2SW_SHIFT) \
235 						| (0 << COMN1SW_SHIFT))
236 
237 #define CONTROL2_LOWPWR_SHIFT		(0)
238 #define CONTROL2_ADCEN_SHIFT		(1)
239 #define CONTROL2_CPEN_SHIFT		(2)
240 #define CONTROL2_SFOUTASRT_SHIFT	(3)
241 #define CONTROL2_SFOUTORD_SHIFT		(4)
242 #define CONTROL2_ACCDET_SHIFT		(5)
243 #define CONTROL2_USBCPINT_SHIFT		(6)
244 #define CONTROL2_RCPS_SHIFT		(7)
245 #define CONTROL2_LOWPWR_MASK		(0x1 << CONTROL2_LOWPWR_SHIFT)
246 #define CONTROL2_ADCEN_MASK		(0x1 << CONTROL2_ADCEN_SHIFT)
247 #define CONTROL2_CPEN_MASK		(0x1 << CONTROL2_CPEN_SHIFT)
248 #define CONTROL2_SFOUTASRT_MASK		(0x1 << CONTROL2_SFOUTASRT_SHIFT)
249 #define CONTROL2_SFOUTORD_MASK		(0x1 << CONTROL2_SFOUTORD_SHIFT)
250 #define CONTROL2_ACCDET_MASK		(0x1 << CONTROL2_ACCDET_SHIFT)
251 #define CONTROL2_USBCPINT_MASK		(0x1 << CONTROL2_USBCPINT_SHIFT)
252 #define CONTROL2_RCPS_MASK		(0x1 << CONTROL2_RCPS_SHIFT)
253 
254 #define CONTROL3_JIGSET_SHIFT		(0)
255 #define CONTROL3_BTLDSET_SHIFT		(2)
256 #define CONTROL3_ADCDBSET_SHIFT		(4)
257 #define CONTROL3_JIGSET_MASK		(0x3 << CONTROL3_JIGSET_SHIFT)
258 #define CONTROL3_BTLDSET_MASK		(0x3 << CONTROL3_BTLDSET_SHIFT)
259 #define CONTROL3_ADCDBSET_MASK		(0x3 << CONTROL3_ADCDBSET_SHIFT)
260 
261 enum max8997_haptic_reg {
262 	MAX8997_HAPTIC_REG_GENERAL	= 0x00,
263 	MAX8997_HAPTIC_REG_CONF1	= 0x01,
264 	MAX8997_HAPTIC_REG_CONF2	= 0x02,
265 	MAX8997_HAPTIC_REG_DRVCONF	= 0x03,
266 	MAX8997_HAPTIC_REG_CYCLECONF1	= 0x04,
267 	MAX8997_HAPTIC_REG_CYCLECONF2	= 0x05,
268 	MAX8997_HAPTIC_REG_SIGCONF1	= 0x06,
269 	MAX8997_HAPTIC_REG_SIGCONF2	= 0x07,
270 	MAX8997_HAPTIC_REG_SIGCONF3	= 0x08,
271 	MAX8997_HAPTIC_REG_SIGCONF4	= 0x09,
272 	MAX8997_HAPTIC_REG_SIGDC1	= 0x0a,
273 	MAX8997_HAPTIC_REG_SIGDC2	= 0x0b,
274 	MAX8997_HAPTIC_REG_SIGPWMDC1	= 0x0c,
275 	MAX8997_HAPTIC_REG_SIGPWMDC2	= 0x0d,
276 	MAX8997_HAPTIC_REG_SIGPWMDC3	= 0x0e,
277 	MAX8997_HAPTIC_REG_SIGPWMDC4	= 0x0f,
278 	MAX8997_HAPTIC_REG_MTR_REV	= 0x10,
279 
280 	MAX8997_HAPTIC_REG_END		= 0x11,
281 };
282 
283 /* slave addr = 0x0c: using "2nd part" of rev4 datasheet */
284 enum max8997_rtc_reg {
285 	MAX8997_RTC_CTRLMASK		= 0x02,
286 	MAX8997_RTC_CTRL		= 0x03,
287 	MAX8997_RTC_UPDATE1		= 0x04,
288 	MAX8997_RTC_UPDATE2		= 0x05,
289 	MAX8997_RTC_WTSR_SMPL		= 0x06,
290 
291 	MAX8997_RTC_SEC			= 0x10,
292 	MAX8997_RTC_MIN			= 0x11,
293 	MAX8997_RTC_HOUR		= 0x12,
294 	MAX8997_RTC_DAY_OF_WEEK		= 0x13,
295 	MAX8997_RTC_MONTH		= 0x14,
296 	MAX8997_RTC_YEAR		= 0x15,
297 	MAX8997_RTC_DAY_OF_MONTH	= 0x16,
298 	MAX8997_RTC_ALARM1_SEC		= 0x17,
299 	MAX8997_RTC_ALARM1_MIN		= 0x18,
300 	MAX8997_RTC_ALARM1_HOUR		= 0x19,
301 	MAX8997_RTC_ALARM1_DAY_OF_WEEK	= 0x1a,
302 	MAX8997_RTC_ALARM1_MONTH	= 0x1b,
303 	MAX8997_RTC_ALARM1_YEAR		= 0x1c,
304 	MAX8997_RTC_ALARM1_DAY_OF_MONTH	= 0x1d,
305 	MAX8997_RTC_ALARM2_SEC		= 0x1e,
306 	MAX8997_RTC_ALARM2_MIN		= 0x1f,
307 	MAX8997_RTC_ALARM2_HOUR		= 0x20,
308 	MAX8997_RTC_ALARM2_DAY_OF_WEEK	= 0x21,
309 	MAX8997_RTC_ALARM2_MONTH	= 0x22,
310 	MAX8997_RTC_ALARM2_YEAR		= 0x23,
311 	MAX8997_RTC_ALARM2_DAY_OF_MONTH	= 0x24,
312 };
313 
314 enum max8997_irq_source {
315 	PMIC_INT1 = 0,
316 	PMIC_INT2,
317 	PMIC_INT3,
318 	PMIC_INT4,
319 
320 	FUEL_GAUGE, /* Ignored (MAX17042 driver handles) */
321 
322 	MUIC_INT1,
323 	MUIC_INT2,
324 	MUIC_INT3,
325 
326 	GPIO_LOW, /* Not implemented */
327 	GPIO_HI, /* Not implemented */
328 
329 	FLASH_STATUS, /* Not implemented */
330 
331 	MAX8997_IRQ_GROUP_NR,
332 };
333 
334 enum max8997_irq {
335 	MAX8997_PMICIRQ_PWRONR,
336 	MAX8997_PMICIRQ_PWRONF,
337 	MAX8997_PMICIRQ_PWRON1SEC,
338 	MAX8997_PMICIRQ_JIGONR,
339 	MAX8997_PMICIRQ_JIGONF,
340 	MAX8997_PMICIRQ_LOWBAT2,
341 	MAX8997_PMICIRQ_LOWBAT1,
342 
343 	MAX8997_PMICIRQ_JIGR,
344 	MAX8997_PMICIRQ_JIGF,
345 	MAX8997_PMICIRQ_MR,
346 	MAX8997_PMICIRQ_DVS1OK,
347 	MAX8997_PMICIRQ_DVS2OK,
348 	MAX8997_PMICIRQ_DVS3OK,
349 	MAX8997_PMICIRQ_DVS4OK,
350 
351 	MAX8997_PMICIRQ_CHGINS,
352 	MAX8997_PMICIRQ_CHGRM,
353 	MAX8997_PMICIRQ_DCINOVP,
354 	MAX8997_PMICIRQ_TOPOFFR,
355 	MAX8997_PMICIRQ_CHGRSTF,
356 	MAX8997_PMICIRQ_MBCHGTMEXPD,
357 
358 	MAX8997_PMICIRQ_RTC60S,
359 	MAX8997_PMICIRQ_RTCA1,
360 	MAX8997_PMICIRQ_RTCA2,
361 	MAX8997_PMICIRQ_SMPL_INT,
362 	MAX8997_PMICIRQ_RTC1S,
363 	MAX8997_PMICIRQ_WTSR,
364 
365 	MAX8997_MUICIRQ_ADCError,
366 	MAX8997_MUICIRQ_ADCLow,
367 	MAX8997_MUICIRQ_ADC,
368 
369 	MAX8997_MUICIRQ_VBVolt,
370 	MAX8997_MUICIRQ_DBChg,
371 	MAX8997_MUICIRQ_DCDTmr,
372 	MAX8997_MUICIRQ_ChgDetRun,
373 	MAX8997_MUICIRQ_ChgTyp,
374 
375 	MAX8997_MUICIRQ_OVP,
376 
377 	MAX8997_IRQ_NR,
378 };
379 
380 #define MAX8997_NUM_GPIO	12
381 struct max8997_dev {
382 	struct device *dev;
383 	struct max8997_platform_data *pdata;
384 	struct i2c_client *i2c; /* 0xcc / PMIC, Battery Control, and FLASH */
385 	struct i2c_client *rtc; /* slave addr 0x0c */
386 	struct i2c_client *haptic; /* slave addr 0x90 */
387 	struct i2c_client *muic; /* slave addr 0x4a */
388 	struct mutex iolock;
389 
390 	unsigned long type;
391 	struct platform_device *battery; /* battery control (not fuel gauge) */
392 
393 	int irq;
394 	int ono;
395 	struct irq_domain *irq_domain;
396 	struct mutex irqlock;
397 	int irq_masks_cur[MAX8997_IRQ_GROUP_NR];
398 	int irq_masks_cache[MAX8997_IRQ_GROUP_NR];
399 
400 	/* For hibernation */
401 	u8 reg_dump[MAX8997_REG_PMIC_END + MAX8997_MUIC_REG_END +
402 		MAX8997_HAPTIC_REG_END];
403 
404 	bool gpio_status[MAX8997_NUM_GPIO];
405 };
406 
407 enum max8997_types {
408 	TYPE_MAX8997,
409 	TYPE_MAX8966,
410 };
411 
412 extern int max8997_irq_init(struct max8997_dev *max8997);
413 extern void max8997_irq_exit(struct max8997_dev *max8997);
414 extern int max8997_irq_resume(struct max8997_dev *max8997);
415 
416 extern int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest);
417 extern int max8997_bulk_read(struct i2c_client *i2c, u8 reg, int count,
418 				u8 *buf);
419 extern int max8997_write_reg(struct i2c_client *i2c, u8 reg, u8 value);
420 extern int max8997_bulk_write(struct i2c_client *i2c, u8 reg, int count,
421 				u8 *buf);
422 extern int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask);
423 
424 #define MAX8997_GPIO_INT_BOTH	(0x3 << 4)
425 #define MAX8997_GPIO_INT_RISE	(0x2 << 4)
426 #define MAX8997_GPIO_INT_FALL	(0x1 << 4)
427 
428 #define MAX8997_GPIO_INT_MASK	(0x3 << 4)
429 #define MAX8997_GPIO_DATA_MASK	(0x1 << 2)
430 #endif /*  __LINUX_MFD_MAX8997_PRIV_H */
431