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af8b5fc3 KM |
1 | /* |
2 | * Copyright 2012 Texas Instruments | |
3 | * | |
4 | * Author: Milo(Woogyom) Kim <milo.kim@ti.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/slab.h> | |
14 | #include <linux/i2c.h> | |
15 | #include <linux/regmap.h> | |
16 | #include <linux/err.h> | |
17 | #include <linux/gpio.h> | |
18 | #include <linux/regulator/lp872x.h> | |
19 | #include <linux/regulator/driver.h> | |
20 | #include <linux/platform_device.h> | |
00fd6e61 KM |
21 | #include <linux/of.h> |
22 | #include <linux/of_gpio.h> | |
23 | #include <linux/regulator/of_regulator.h> | |
af8b5fc3 KM |
24 | |
25 | /* Registers : LP8720/8725 shared */ | |
26 | #define LP872X_GENERAL_CFG 0x00 | |
27 | #define LP872X_LDO1_VOUT 0x01 | |
28 | #define LP872X_LDO2_VOUT 0x02 | |
29 | #define LP872X_LDO3_VOUT 0x03 | |
30 | #define LP872X_LDO4_VOUT 0x04 | |
31 | #define LP872X_LDO5_VOUT 0x05 | |
32 | ||
33 | /* Registers : LP8720 */ | |
34 | #define LP8720_BUCK_VOUT1 0x06 | |
35 | #define LP8720_BUCK_VOUT2 0x07 | |
36 | #define LP8720_ENABLE 0x08 | |
37 | ||
38 | /* Registers : LP8725 */ | |
39 | #define LP8725_LILO1_VOUT 0x06 | |
40 | #define LP8725_LILO2_VOUT 0x07 | |
41 | #define LP8725_BUCK1_VOUT1 0x08 | |
42 | #define LP8725_BUCK1_VOUT2 0x09 | |
43 | #define LP8725_BUCK2_VOUT1 0x0A | |
44 | #define LP8725_BUCK2_VOUT2 0x0B | |
45 | #define LP8725_BUCK_CTRL 0x0C | |
46 | #define LP8725_LDO_CTRL 0x0D | |
47 | ||
48 | /* Mask/shift : LP8720/LP8725 shared */ | |
49 | #define LP872X_VOUT_M 0x1F | |
50 | #define LP872X_START_DELAY_M 0xE0 | |
51 | #define LP872X_START_DELAY_S 5 | |
52 | #define LP872X_EN_LDO1_M BIT(0) | |
53 | #define LP872X_EN_LDO2_M BIT(1) | |
54 | #define LP872X_EN_LDO3_M BIT(2) | |
55 | #define LP872X_EN_LDO4_M BIT(3) | |
56 | #define LP872X_EN_LDO5_M BIT(4) | |
57 | ||
58 | /* Mask/shift : LP8720 */ | |
59 | #define LP8720_TIMESTEP_S 0 /* Addr 00h */ | |
60 | #define LP8720_TIMESTEP_M BIT(0) | |
61 | #define LP8720_EXT_DVS_M BIT(2) | |
62 | #define LP8720_BUCK_FPWM_S 5 /* Addr 07h */ | |
63 | #define LP8720_BUCK_FPWM_M BIT(5) | |
64 | #define LP8720_EN_BUCK_M BIT(5) /* Addr 08h */ | |
65 | #define LP8720_DVS_SEL_M BIT(7) | |
66 | ||
67 | /* Mask/shift : LP8725 */ | |
68 | #define LP8725_TIMESTEP_M 0xC0 /* Addr 00h */ | |
69 | #define LP8725_TIMESTEP_S 6 | |
70 | #define LP8725_BUCK1_EN_M BIT(0) | |
71 | #define LP8725_DVS1_M BIT(2) | |
72 | #define LP8725_DVS2_M BIT(3) | |
73 | #define LP8725_BUCK2_EN_M BIT(4) | |
74 | #define LP8725_BUCK_CL_M 0xC0 /* Addr 09h, 0Bh */ | |
75 | #define LP8725_BUCK_CL_S 6 | |
76 | #define LP8725_BUCK1_FPWM_S 1 /* Addr 0Ch */ | |
77 | #define LP8725_BUCK1_FPWM_M BIT(1) | |
78 | #define LP8725_BUCK2_FPWM_S 5 | |
79 | #define LP8725_BUCK2_FPWM_M BIT(5) | |
80 | #define LP8725_EN_LILO1_M BIT(5) /* Addr 0Dh */ | |
81 | #define LP8725_EN_LILO2_M BIT(6) | |
82 | ||
83 | /* PWM mode */ | |
84 | #define LP872X_FORCE_PWM 1 | |
85 | #define LP872X_AUTO_PWM 0 | |
86 | ||
87 | #define LP8720_NUM_REGULATORS 6 | |
88 | #define LP8725_NUM_REGULATORS 9 | |
89 | #define EXTERN_DVS_USED 0 | |
90 | #define MAX_DELAY 6 | |
91 | ||
b158fba6 KM |
92 | /* Default DVS Mode */ |
93 | #define LP8720_DEFAULT_DVS 0 | |
94 | #define LP8725_DEFAULT_DVS BIT(2) | |
95 | ||
af8b5fc3 KM |
96 | /* dump registers in regmap-debugfs */ |
97 | #define MAX_REGISTERS 0x0F | |
98 | ||
99 | enum lp872x_id { | |
100 | LP8720, | |
101 | LP8725, | |
102 | }; | |
103 | ||
104 | struct lp872x { | |
105 | struct regmap *regmap; | |
106 | struct device *dev; | |
107 | enum lp872x_id chipid; | |
108 | struct lp872x_platform_data *pdata; | |
af8b5fc3 KM |
109 | int num_regulators; |
110 | enum lp872x_dvs_state dvs_pin; | |
af8b5fc3 KM |
111 | }; |
112 | ||
113 | /* LP8720/LP8725 shared voltage table for LDOs */ | |
114 | static const unsigned int lp872x_ldo_vtbl[] = { | |
115 | 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000, | |
116 | 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 2000000, | |
117 | 2100000, 2200000, 2300000, 2400000, 2500000, 2600000, 2650000, 2700000, | |
118 | 2750000, 2800000, 2850000, 2900000, 2950000, 3000000, 3100000, 3300000, | |
119 | }; | |
120 | ||
121 | /* LP8720 LDO4 voltage table */ | |
122 | static const unsigned int lp8720_ldo4_vtbl[] = { | |
123 | 800000, 850000, 900000, 1000000, 1100000, 1200000, 1250000, 1300000, | |
124 | 1350000, 1400000, 1450000, 1500000, 1550000, 1600000, 1650000, 1700000, | |
125 | 1750000, 1800000, 1850000, 1900000, 2000000, 2100000, 2200000, 2300000, | |
126 | 2400000, 2500000, 2600000, 2650000, 2700000, 2750000, 2800000, 2850000, | |
127 | }; | |
128 | ||
129 | /* LP8725 LILO(Low Input Low Output) voltage table */ | |
130 | static const unsigned int lp8725_lilo_vtbl[] = { | |
131 | 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, | |
132 | 1200000, 1250000, 1300000, 1350000, 1400000, 1500000, 1600000, 1700000, | |
133 | 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, | |
134 | 2600000, 2700000, 2800000, 2850000, 2900000, 3000000, 3100000, 3300000, | |
135 | }; | |
136 | ||
137 | /* LP8720 BUCK voltage table */ | |
138 | #define EXT_R 0 /* external resistor divider */ | |
139 | static const unsigned int lp8720_buck_vtbl[] = { | |
140 | EXT_R, 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, | |
141 | 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, | |
142 | 1550000, 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, | |
143 | 1950000, 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, | |
144 | }; | |
145 | ||
146 | /* LP8725 BUCK voltage table */ | |
147 | static const unsigned int lp8725_buck_vtbl[] = { | |
148 | 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, | |
149 | 1200000, 1250000, 1300000, 1350000, 1400000, 1500000, 1600000, 1700000, | |
150 | 1750000, 1800000, 1850000, 1900000, 2000000, 2100000, 2200000, 2300000, | |
151 | 2400000, 2500000, 2600000, 2700000, 2800000, 2850000, 2900000, 3000000, | |
152 | }; | |
153 | ||
154 | /* LP8725 BUCK current limit */ | |
155 | static const unsigned int lp8725_buck_uA[] = { | |
156 | 460000, 780000, 1050000, 1370000, | |
157 | }; | |
158 | ||
159 | static int lp872x_read_byte(struct lp872x *lp, u8 addr, u8 *data) | |
160 | { | |
161 | int ret; | |
162 | unsigned int val; | |
163 | ||
164 | ret = regmap_read(lp->regmap, addr, &val); | |
165 | if (ret < 0) { | |
166 | dev_err(lp->dev, "failed to read 0x%.2x\n", addr); | |
167 | return ret; | |
168 | } | |
169 | ||
170 | *data = (u8)val; | |
171 | return 0; | |
172 | } | |
173 | ||
174 | static inline int lp872x_write_byte(struct lp872x *lp, u8 addr, u8 data) | |
175 | { | |
176 | return regmap_write(lp->regmap, addr, data); | |
177 | } | |
178 | ||
179 | static inline int lp872x_update_bits(struct lp872x *lp, u8 addr, | |
180 | unsigned int mask, u8 data) | |
181 | { | |
182 | return regmap_update_bits(lp->regmap, addr, mask, data); | |
183 | } | |
184 | ||
af8b5fc3 KM |
185 | static int lp872x_get_timestep_usec(struct lp872x *lp) |
186 | { | |
187 | enum lp872x_id chip = lp->chipid; | |
188 | u8 val, mask, shift; | |
189 | int *time_usec, size, ret; | |
190 | int lp8720_time_usec[] = { 25, 50 }; | |
191 | int lp8725_time_usec[] = { 32, 64, 128, 256 }; | |
192 | ||
193 | switch (chip) { | |
194 | case LP8720: | |
195 | mask = LP8720_TIMESTEP_M; | |
196 | shift = LP8720_TIMESTEP_S; | |
197 | time_usec = &lp8720_time_usec[0]; | |
198 | size = ARRAY_SIZE(lp8720_time_usec); | |
199 | break; | |
200 | case LP8725: | |
201 | mask = LP8725_TIMESTEP_M; | |
202 | shift = LP8725_TIMESTEP_S; | |
203 | time_usec = &lp8725_time_usec[0]; | |
204 | size = ARRAY_SIZE(lp8725_time_usec); | |
205 | break; | |
206 | default: | |
207 | return -EINVAL; | |
208 | } | |
209 | ||
210 | ret = lp872x_read_byte(lp, LP872X_GENERAL_CFG, &val); | |
211 | if (ret) | |
ad5ec6cd | 212 | return ret; |
af8b5fc3 KM |
213 | |
214 | val = (val & mask) >> shift; | |
215 | if (val >= size) | |
216 | return -EINVAL; | |
217 | ||
218 | return *(time_usec + val); | |
219 | } | |
220 | ||
221 | static int lp872x_regulator_enable_time(struct regulator_dev *rdev) | |
222 | { | |
223 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
2c129927 | 224 | enum lp872x_regulator_id rid = rdev_get_id(rdev); |
af8b5fc3 | 225 | int time_step_us = lp872x_get_timestep_usec(lp); |
2c129927 | 226 | int ret; |
af8b5fc3 KM |
227 | u8 addr, val; |
228 | ||
229 | if (time_step_us < 0) | |
ad5ec6cd | 230 | return time_step_us; |
af8b5fc3 | 231 | |
2c129927 AL |
232 | switch (rid) { |
233 | case LP8720_ID_LDO1 ... LP8720_ID_BUCK: | |
234 | addr = LP872X_LDO1_VOUT + rid; | |
af8b5fc3 | 235 | break; |
2c129927 AL |
236 | case LP8725_ID_LDO1 ... LP8725_ID_BUCK1: |
237 | addr = LP872X_LDO1_VOUT + rid - LP8725_ID_BASE; | |
af8b5fc3 KM |
238 | break; |
239 | case LP8725_ID_BUCK2: | |
240 | addr = LP8725_BUCK2_VOUT1; | |
241 | break; | |
242 | default: | |
243 | return -EINVAL; | |
244 | } | |
245 | ||
246 | ret = lp872x_read_byte(lp, addr, &val); | |
247 | if (ret) | |
248 | return ret; | |
249 | ||
250 | val = (val & LP872X_START_DELAY_M) >> LP872X_START_DELAY_S; | |
251 | ||
252 | return val > MAX_DELAY ? 0 : val * time_step_us; | |
253 | } | |
254 | ||
9d6da6fc KM |
255 | static void lp872x_set_dvs(struct lp872x *lp, enum lp872x_dvs_sel dvs_sel, |
256 | int gpio) | |
af8b5fc3 | 257 | { |
af8b5fc3 KM |
258 | enum lp872x_dvs_state state; |
259 | ||
260 | state = dvs_sel == SEL_V1 ? DVS_HIGH : DVS_LOW; | |
261 | gpio_set_value(gpio, state); | |
262 | lp->dvs_pin = state; | |
263 | } | |
264 | ||
265 | static u8 lp872x_select_buck_vout_addr(struct lp872x *lp, | |
266 | enum lp872x_regulator_id buck) | |
267 | { | |
268 | u8 val, addr; | |
269 | ||
270 | if (lp872x_read_byte(lp, LP872X_GENERAL_CFG, &val)) | |
271 | return 0; | |
272 | ||
273 | switch (buck) { | |
274 | case LP8720_ID_BUCK: | |
275 | if (val & LP8720_EXT_DVS_M) { | |
276 | addr = (lp->dvs_pin == DVS_HIGH) ? | |
277 | LP8720_BUCK_VOUT1 : LP8720_BUCK_VOUT2; | |
278 | } else { | |
279 | if (lp872x_read_byte(lp, LP8720_ENABLE, &val)) | |
280 | return 0; | |
281 | ||
282 | addr = val & LP8720_DVS_SEL_M ? | |
283 | LP8720_BUCK_VOUT1 : LP8720_BUCK_VOUT2; | |
284 | } | |
285 | break; | |
286 | case LP8725_ID_BUCK1: | |
287 | if (val & LP8725_DVS1_M) | |
288 | addr = LP8725_BUCK1_VOUT1; | |
289 | else | |
290 | addr = (lp->dvs_pin == DVS_HIGH) ? | |
291 | LP8725_BUCK1_VOUT1 : LP8725_BUCK1_VOUT2; | |
292 | break; | |
293 | case LP8725_ID_BUCK2: | |
294 | addr = val & LP8725_DVS2_M ? | |
295 | LP8725_BUCK2_VOUT1 : LP8725_BUCK2_VOUT2; | |
296 | break; | |
297 | default: | |
298 | return 0; | |
299 | } | |
300 | ||
301 | return addr; | |
302 | } | |
303 | ||
304 | static bool lp872x_is_valid_buck_addr(u8 addr) | |
305 | { | |
306 | switch (addr) { | |
307 | case LP8720_BUCK_VOUT1: | |
308 | case LP8720_BUCK_VOUT2: | |
309 | case LP8725_BUCK1_VOUT1: | |
310 | case LP8725_BUCK1_VOUT2: | |
311 | case LP8725_BUCK2_VOUT1: | |
312 | case LP8725_BUCK2_VOUT2: | |
313 | return true; | |
314 | default: | |
315 | return false; | |
316 | } | |
317 | } | |
318 | ||
319 | static int lp872x_buck_set_voltage_sel(struct regulator_dev *rdev, | |
320 | unsigned selector) | |
321 | { | |
322 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
323 | enum lp872x_regulator_id buck = rdev_get_id(rdev); | |
324 | u8 addr, mask = LP872X_VOUT_M; | |
9d6da6fc | 325 | struct lp872x_dvs *dvs = lp->pdata ? lp->pdata->dvs : NULL; |
af8b5fc3 KM |
326 | |
327 | if (dvs && gpio_is_valid(dvs->gpio)) | |
9d6da6fc | 328 | lp872x_set_dvs(lp, dvs->vsel, dvs->gpio); |
af8b5fc3 KM |
329 | |
330 | addr = lp872x_select_buck_vout_addr(lp, buck); | |
331 | if (!lp872x_is_valid_buck_addr(addr)) | |
332 | return -EINVAL; | |
333 | ||
334 | return lp872x_update_bits(lp, addr, mask, selector); | |
335 | } | |
336 | ||
337 | static int lp872x_buck_get_voltage_sel(struct regulator_dev *rdev) | |
338 | { | |
339 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
340 | enum lp872x_regulator_id buck = rdev_get_id(rdev); | |
341 | u8 addr, val; | |
342 | int ret; | |
343 | ||
344 | addr = lp872x_select_buck_vout_addr(lp, buck); | |
345 | if (!lp872x_is_valid_buck_addr(addr)) | |
346 | return -EINVAL; | |
347 | ||
348 | ret = lp872x_read_byte(lp, addr, &val); | |
349 | if (ret) | |
350 | return ret; | |
351 | ||
352 | return val & LP872X_VOUT_M; | |
353 | } | |
354 | ||
355 | static int lp8725_buck_set_current_limit(struct regulator_dev *rdev, | |
356 | int min_uA, int max_uA) | |
357 | { | |
358 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
359 | enum lp872x_regulator_id buck = rdev_get_id(rdev); | |
4e1d67ed AL |
360 | int i; |
361 | u8 addr; | |
af8b5fc3 KM |
362 | |
363 | switch (buck) { | |
364 | case LP8725_ID_BUCK1: | |
365 | addr = LP8725_BUCK1_VOUT2; | |
366 | break; | |
367 | case LP8725_ID_BUCK2: | |
368 | addr = LP8725_BUCK2_VOUT2; | |
369 | break; | |
370 | default: | |
371 | return -EINVAL; | |
372 | } | |
373 | ||
37a6f43d | 374 | for (i = ARRAY_SIZE(lp8725_buck_uA) - 1; i >= 0; i--) { |
af8b5fc3 KM |
375 | if (lp8725_buck_uA[i] >= min_uA && |
376 | lp8725_buck_uA[i] <= max_uA) | |
4e1d67ed AL |
377 | return lp872x_update_bits(lp, addr, |
378 | LP8725_BUCK_CL_M, | |
379 | i << LP8725_BUCK_CL_S); | |
380 | } | |
af8b5fc3 | 381 | |
4e1d67ed | 382 | return -EINVAL; |
af8b5fc3 KM |
383 | } |
384 | ||
385 | static int lp8725_buck_get_current_limit(struct regulator_dev *rdev) | |
386 | { | |
387 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
388 | enum lp872x_regulator_id buck = rdev_get_id(rdev); | |
389 | u8 addr, val; | |
390 | int ret; | |
391 | ||
392 | switch (buck) { | |
393 | case LP8725_ID_BUCK1: | |
394 | addr = LP8725_BUCK1_VOUT2; | |
395 | break; | |
396 | case LP8725_ID_BUCK2: | |
397 | addr = LP8725_BUCK2_VOUT2; | |
398 | break; | |
399 | default: | |
400 | return -EINVAL; | |
401 | } | |
402 | ||
403 | ret = lp872x_read_byte(lp, addr, &val); | |
404 | if (ret) | |
405 | return ret; | |
406 | ||
407 | val = (val & LP8725_BUCK_CL_M) >> LP8725_BUCK_CL_S; | |
408 | ||
409 | return (val < ARRAY_SIZE(lp8725_buck_uA)) ? | |
410 | lp8725_buck_uA[val] : -EINVAL; | |
411 | } | |
412 | ||
413 | static int lp872x_buck_set_mode(struct regulator_dev *rdev, unsigned int mode) | |
414 | { | |
415 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
416 | enum lp872x_regulator_id buck = rdev_get_id(rdev); | |
417 | u8 addr, mask, shift, val; | |
418 | ||
419 | switch (buck) { | |
420 | case LP8720_ID_BUCK: | |
421 | addr = LP8720_BUCK_VOUT2; | |
422 | mask = LP8720_BUCK_FPWM_M; | |
423 | shift = LP8720_BUCK_FPWM_S; | |
424 | break; | |
425 | case LP8725_ID_BUCK1: | |
426 | addr = LP8725_BUCK_CTRL; | |
427 | mask = LP8725_BUCK1_FPWM_M; | |
428 | shift = LP8725_BUCK1_FPWM_S; | |
429 | break; | |
430 | case LP8725_ID_BUCK2: | |
431 | addr = LP8725_BUCK_CTRL; | |
432 | mask = LP8725_BUCK2_FPWM_M; | |
433 | shift = LP8725_BUCK2_FPWM_S; | |
434 | break; | |
435 | default: | |
436 | return -EINVAL; | |
437 | } | |
438 | ||
439 | if (mode == REGULATOR_MODE_FAST) | |
440 | val = LP872X_FORCE_PWM << shift; | |
441 | else if (mode == REGULATOR_MODE_NORMAL) | |
442 | val = LP872X_AUTO_PWM << shift; | |
443 | else | |
444 | return -EINVAL; | |
445 | ||
446 | return lp872x_update_bits(lp, addr, mask, val); | |
447 | } | |
448 | ||
449 | static unsigned int lp872x_buck_get_mode(struct regulator_dev *rdev) | |
450 | { | |
451 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
452 | enum lp872x_regulator_id buck = rdev_get_id(rdev); | |
453 | u8 addr, mask, val; | |
454 | int ret; | |
455 | ||
456 | switch (buck) { | |
457 | case LP8720_ID_BUCK: | |
458 | addr = LP8720_BUCK_VOUT2; | |
459 | mask = LP8720_BUCK_FPWM_M; | |
460 | break; | |
461 | case LP8725_ID_BUCK1: | |
462 | addr = LP8725_BUCK_CTRL; | |
463 | mask = LP8725_BUCK1_FPWM_M; | |
464 | break; | |
465 | case LP8725_ID_BUCK2: | |
466 | addr = LP8725_BUCK_CTRL; | |
467 | mask = LP8725_BUCK2_FPWM_M; | |
468 | break; | |
469 | default: | |
470 | return -EINVAL; | |
471 | } | |
472 | ||
473 | ret = lp872x_read_byte(lp, addr, &val); | |
474 | if (ret) | |
475 | return ret; | |
476 | ||
477 | return val & mask ? REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL; | |
478 | } | |
479 | ||
480 | static struct regulator_ops lp872x_ldo_ops = { | |
481 | .list_voltage = regulator_list_voltage_table, | |
a32f9e02 | 482 | .map_voltage = regulator_map_voltage_ascend, |
af8b5fc3 KM |
483 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
484 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
485 | .enable = regulator_enable_regmap, | |
486 | .disable = regulator_disable_regmap, | |
487 | .is_enabled = regulator_is_enabled_regmap, | |
488 | .enable_time = lp872x_regulator_enable_time, | |
489 | }; | |
490 | ||
491 | static struct regulator_ops lp8720_buck_ops = { | |
492 | .list_voltage = regulator_list_voltage_table, | |
a32f9e02 | 493 | .map_voltage = regulator_map_voltage_ascend, |
af8b5fc3 KM |
494 | .set_voltage_sel = lp872x_buck_set_voltage_sel, |
495 | .get_voltage_sel = lp872x_buck_get_voltage_sel, | |
496 | .enable = regulator_enable_regmap, | |
497 | .disable = regulator_disable_regmap, | |
498 | .is_enabled = regulator_is_enabled_regmap, | |
499 | .enable_time = lp872x_regulator_enable_time, | |
500 | .set_mode = lp872x_buck_set_mode, | |
501 | .get_mode = lp872x_buck_get_mode, | |
502 | }; | |
503 | ||
504 | static struct regulator_ops lp8725_buck_ops = { | |
505 | .list_voltage = regulator_list_voltage_table, | |
a32f9e02 | 506 | .map_voltage = regulator_map_voltage_ascend, |
af8b5fc3 KM |
507 | .set_voltage_sel = lp872x_buck_set_voltage_sel, |
508 | .get_voltage_sel = lp872x_buck_get_voltage_sel, | |
509 | .enable = regulator_enable_regmap, | |
510 | .disable = regulator_disable_regmap, | |
511 | .is_enabled = regulator_is_enabled_regmap, | |
512 | .enable_time = lp872x_regulator_enable_time, | |
513 | .set_mode = lp872x_buck_set_mode, | |
514 | .get_mode = lp872x_buck_get_mode, | |
515 | .set_current_limit = lp8725_buck_set_current_limit, | |
516 | .get_current_limit = lp8725_buck_get_current_limit, | |
517 | }; | |
518 | ||
519 | static struct regulator_desc lp8720_regulator_desc[] = { | |
520 | { | |
521 | .name = "ldo1", | |
1f97fe47 | 522 | .of_match = of_match_ptr("ldo1"), |
af8b5fc3 KM |
523 | .id = LP8720_ID_LDO1, |
524 | .ops = &lp872x_ldo_ops, | |
525 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
526 | .volt_table = lp872x_ldo_vtbl, | |
527 | .type = REGULATOR_VOLTAGE, | |
528 | .owner = THIS_MODULE, | |
529 | .vsel_reg = LP872X_LDO1_VOUT, | |
530 | .vsel_mask = LP872X_VOUT_M, | |
531 | .enable_reg = LP8720_ENABLE, | |
532 | .enable_mask = LP872X_EN_LDO1_M, | |
533 | }, | |
534 | { | |
535 | .name = "ldo2", | |
1f97fe47 | 536 | .of_match = of_match_ptr("ldo2"), |
af8b5fc3 KM |
537 | .id = LP8720_ID_LDO2, |
538 | .ops = &lp872x_ldo_ops, | |
539 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
540 | .volt_table = lp872x_ldo_vtbl, | |
541 | .type = REGULATOR_VOLTAGE, | |
542 | .owner = THIS_MODULE, | |
543 | .vsel_reg = LP872X_LDO2_VOUT, | |
544 | .vsel_mask = LP872X_VOUT_M, | |
545 | .enable_reg = LP8720_ENABLE, | |
546 | .enable_mask = LP872X_EN_LDO2_M, | |
547 | }, | |
548 | { | |
549 | .name = "ldo3", | |
1f97fe47 | 550 | .of_match = of_match_ptr("ldo3"), |
af8b5fc3 KM |
551 | .id = LP8720_ID_LDO3, |
552 | .ops = &lp872x_ldo_ops, | |
553 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
554 | .volt_table = lp872x_ldo_vtbl, | |
555 | .type = REGULATOR_VOLTAGE, | |
556 | .owner = THIS_MODULE, | |
557 | .vsel_reg = LP872X_LDO3_VOUT, | |
558 | .vsel_mask = LP872X_VOUT_M, | |
559 | .enable_reg = LP8720_ENABLE, | |
560 | .enable_mask = LP872X_EN_LDO3_M, | |
561 | }, | |
562 | { | |
563 | .name = "ldo4", | |
1f97fe47 | 564 | .of_match = of_match_ptr("ldo4"), |
af8b5fc3 KM |
565 | .id = LP8720_ID_LDO4, |
566 | .ops = &lp872x_ldo_ops, | |
567 | .n_voltages = ARRAY_SIZE(lp8720_ldo4_vtbl), | |
568 | .volt_table = lp8720_ldo4_vtbl, | |
569 | .type = REGULATOR_VOLTAGE, | |
570 | .owner = THIS_MODULE, | |
571 | .vsel_reg = LP872X_LDO4_VOUT, | |
572 | .vsel_mask = LP872X_VOUT_M, | |
573 | .enable_reg = LP8720_ENABLE, | |
574 | .enable_mask = LP872X_EN_LDO4_M, | |
575 | }, | |
576 | { | |
577 | .name = "ldo5", | |
1f97fe47 | 578 | .of_match = of_match_ptr("ldo5"), |
af8b5fc3 KM |
579 | .id = LP8720_ID_LDO5, |
580 | .ops = &lp872x_ldo_ops, | |
581 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
582 | .volt_table = lp872x_ldo_vtbl, | |
583 | .type = REGULATOR_VOLTAGE, | |
584 | .owner = THIS_MODULE, | |
585 | .vsel_reg = LP872X_LDO5_VOUT, | |
586 | .vsel_mask = LP872X_VOUT_M, | |
587 | .enable_reg = LP8720_ENABLE, | |
588 | .enable_mask = LP872X_EN_LDO5_M, | |
589 | }, | |
590 | { | |
591 | .name = "buck", | |
1f97fe47 | 592 | .of_match = of_match_ptr("buck"), |
af8b5fc3 KM |
593 | .id = LP8720_ID_BUCK, |
594 | .ops = &lp8720_buck_ops, | |
595 | .n_voltages = ARRAY_SIZE(lp8720_buck_vtbl), | |
596 | .volt_table = lp8720_buck_vtbl, | |
597 | .type = REGULATOR_VOLTAGE, | |
598 | .owner = THIS_MODULE, | |
599 | .enable_reg = LP8720_ENABLE, | |
600 | .enable_mask = LP8720_EN_BUCK_M, | |
601 | }, | |
602 | }; | |
603 | ||
604 | static struct regulator_desc lp8725_regulator_desc[] = { | |
605 | { | |
606 | .name = "ldo1", | |
1f97fe47 | 607 | .of_match = of_match_ptr("ldo1"), |
af8b5fc3 KM |
608 | .id = LP8725_ID_LDO1, |
609 | .ops = &lp872x_ldo_ops, | |
610 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
611 | .volt_table = lp872x_ldo_vtbl, | |
612 | .type = REGULATOR_VOLTAGE, | |
613 | .owner = THIS_MODULE, | |
614 | .vsel_reg = LP872X_LDO1_VOUT, | |
615 | .vsel_mask = LP872X_VOUT_M, | |
616 | .enable_reg = LP8725_LDO_CTRL, | |
617 | .enable_mask = LP872X_EN_LDO1_M, | |
618 | }, | |
619 | { | |
620 | .name = "ldo2", | |
1f97fe47 | 621 | .of_match = of_match_ptr("ldo2"), |
af8b5fc3 KM |
622 | .id = LP8725_ID_LDO2, |
623 | .ops = &lp872x_ldo_ops, | |
624 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
625 | .volt_table = lp872x_ldo_vtbl, | |
626 | .type = REGULATOR_VOLTAGE, | |
627 | .owner = THIS_MODULE, | |
628 | .vsel_reg = LP872X_LDO2_VOUT, | |
629 | .vsel_mask = LP872X_VOUT_M, | |
630 | .enable_reg = LP8725_LDO_CTRL, | |
631 | .enable_mask = LP872X_EN_LDO2_M, | |
632 | }, | |
633 | { | |
634 | .name = "ldo3", | |
1f97fe47 | 635 | .of_match = of_match_ptr("ldo3"), |
af8b5fc3 KM |
636 | .id = LP8725_ID_LDO3, |
637 | .ops = &lp872x_ldo_ops, | |
638 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
639 | .volt_table = lp872x_ldo_vtbl, | |
640 | .type = REGULATOR_VOLTAGE, | |
641 | .owner = THIS_MODULE, | |
642 | .vsel_reg = LP872X_LDO3_VOUT, | |
643 | .vsel_mask = LP872X_VOUT_M, | |
644 | .enable_reg = LP8725_LDO_CTRL, | |
645 | .enable_mask = LP872X_EN_LDO3_M, | |
646 | }, | |
647 | { | |
648 | .name = "ldo4", | |
1f97fe47 | 649 | .of_match = of_match_ptr("ldo4"), |
af8b5fc3 KM |
650 | .id = LP8725_ID_LDO4, |
651 | .ops = &lp872x_ldo_ops, | |
652 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
653 | .volt_table = lp872x_ldo_vtbl, | |
654 | .type = REGULATOR_VOLTAGE, | |
655 | .owner = THIS_MODULE, | |
656 | .vsel_reg = LP872X_LDO4_VOUT, | |
657 | .vsel_mask = LP872X_VOUT_M, | |
658 | .enable_reg = LP8725_LDO_CTRL, | |
659 | .enable_mask = LP872X_EN_LDO4_M, | |
660 | }, | |
661 | { | |
662 | .name = "ldo5", | |
1f97fe47 | 663 | .of_match = of_match_ptr("ldo5"), |
af8b5fc3 KM |
664 | .id = LP8725_ID_LDO5, |
665 | .ops = &lp872x_ldo_ops, | |
666 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
667 | .volt_table = lp872x_ldo_vtbl, | |
668 | .type = REGULATOR_VOLTAGE, | |
669 | .owner = THIS_MODULE, | |
670 | .vsel_reg = LP872X_LDO5_VOUT, | |
671 | .vsel_mask = LP872X_VOUT_M, | |
672 | .enable_reg = LP8725_LDO_CTRL, | |
673 | .enable_mask = LP872X_EN_LDO5_M, | |
674 | }, | |
675 | { | |
676 | .name = "lilo1", | |
1f97fe47 | 677 | .of_match = of_match_ptr("lilo1"), |
af8b5fc3 KM |
678 | .id = LP8725_ID_LILO1, |
679 | .ops = &lp872x_ldo_ops, | |
680 | .n_voltages = ARRAY_SIZE(lp8725_lilo_vtbl), | |
681 | .volt_table = lp8725_lilo_vtbl, | |
682 | .type = REGULATOR_VOLTAGE, | |
683 | .owner = THIS_MODULE, | |
684 | .vsel_reg = LP8725_LILO1_VOUT, | |
685 | .vsel_mask = LP872X_VOUT_M, | |
686 | .enable_reg = LP8725_LDO_CTRL, | |
687 | .enable_mask = LP8725_EN_LILO1_M, | |
688 | }, | |
689 | { | |
690 | .name = "lilo2", | |
1f97fe47 | 691 | .of_match = of_match_ptr("lilo2"), |
af8b5fc3 KM |
692 | .id = LP8725_ID_LILO2, |
693 | .ops = &lp872x_ldo_ops, | |
694 | .n_voltages = ARRAY_SIZE(lp8725_lilo_vtbl), | |
695 | .volt_table = lp8725_lilo_vtbl, | |
696 | .type = REGULATOR_VOLTAGE, | |
697 | .owner = THIS_MODULE, | |
698 | .vsel_reg = LP8725_LILO2_VOUT, | |
699 | .vsel_mask = LP872X_VOUT_M, | |
700 | .enable_reg = LP8725_LDO_CTRL, | |
701 | .enable_mask = LP8725_EN_LILO2_M, | |
702 | }, | |
703 | { | |
704 | .name = "buck1", | |
1f97fe47 | 705 | .of_match = of_match_ptr("buck1"), |
af8b5fc3 KM |
706 | .id = LP8725_ID_BUCK1, |
707 | .ops = &lp8725_buck_ops, | |
708 | .n_voltages = ARRAY_SIZE(lp8725_buck_vtbl), | |
709 | .volt_table = lp8725_buck_vtbl, | |
710 | .type = REGULATOR_VOLTAGE, | |
711 | .owner = THIS_MODULE, | |
712 | .enable_reg = LP872X_GENERAL_CFG, | |
713 | .enable_mask = LP8725_BUCK1_EN_M, | |
714 | }, | |
715 | { | |
716 | .name = "buck2", | |
1f97fe47 | 717 | .of_match = of_match_ptr("buck2"), |
af8b5fc3 KM |
718 | .id = LP8725_ID_BUCK2, |
719 | .ops = &lp8725_buck_ops, | |
720 | .n_voltages = ARRAY_SIZE(lp8725_buck_vtbl), | |
721 | .volt_table = lp8725_buck_vtbl, | |
722 | .type = REGULATOR_VOLTAGE, | |
723 | .owner = THIS_MODULE, | |
724 | .enable_reg = LP872X_GENERAL_CFG, | |
725 | .enable_mask = LP8725_BUCK2_EN_M, | |
726 | }, | |
727 | }; | |
728 | ||
af8b5fc3 KM |
729 | static int lp872x_init_dvs(struct lp872x *lp) |
730 | { | |
731 | int ret, gpio; | |
b158fba6 | 732 | struct lp872x_dvs *dvs = lp->pdata ? lp->pdata->dvs : NULL; |
af8b5fc3 | 733 | enum lp872x_dvs_state pinstate; |
b158fba6 KM |
734 | u8 mask[] = { LP8720_EXT_DVS_M, LP8725_DVS1_M | LP8725_DVS2_M }; |
735 | u8 default_dvs_mode[] = { LP8720_DEFAULT_DVS, LP8725_DEFAULT_DVS }; | |
736 | ||
737 | if (!dvs) | |
738 | goto set_default_dvs_mode; | |
af8b5fc3 | 739 | |
af8b5fc3 KM |
740 | gpio = dvs->gpio; |
741 | if (!gpio_is_valid(gpio)) { | |
00fd6e61 KM |
742 | dev_warn(lp->dev, "invalid gpio: %d\n", gpio); |
743 | goto set_default_dvs_mode; | |
af8b5fc3 KM |
744 | } |
745 | ||
746 | pinstate = dvs->init_state; | |
747 | ret = devm_gpio_request_one(lp->dev, gpio, pinstate, "LP872X DVS"); | |
748 | if (ret) { | |
749 | dev_err(lp->dev, "gpio request err: %d\n", ret); | |
750 | return ret; | |
751 | } | |
752 | ||
753 | lp->dvs_pin = pinstate; | |
af8b5fc3 KM |
754 | |
755 | return 0; | |
b158fba6 KM |
756 | |
757 | set_default_dvs_mode: | |
758 | return lp872x_update_bits(lp, LP872X_GENERAL_CFG, mask[lp->chipid], | |
759 | default_dvs_mode[lp->chipid]); | |
af8b5fc3 KM |
760 | } |
761 | ||
762 | static int lp872x_config(struct lp872x *lp) | |
763 | { | |
764 | struct lp872x_platform_data *pdata = lp->pdata; | |
765 | int ret; | |
766 | ||
86b3fef0 KM |
767 | if (!pdata || !pdata->update_config) |
768 | goto init_dvs; | |
af8b5fc3 KM |
769 | |
770 | ret = lp872x_write_byte(lp, LP872X_GENERAL_CFG, pdata->general_config); | |
771 | if (ret) | |
772 | return ret; | |
773 | ||
86b3fef0 | 774 | init_dvs: |
af8b5fc3 KM |
775 | return lp872x_init_dvs(lp); |
776 | } | |
777 | ||
778 | static struct regulator_init_data | |
5bae0628 | 779 | *lp872x_find_regulator_init_data(int id, struct lp872x *lp) |
af8b5fc3 | 780 | { |
9ffaa868 | 781 | struct lp872x_platform_data *pdata = lp->pdata; |
5bae0628 | 782 | int i; |
af8b5fc3 | 783 | |
9ffaa868 KM |
784 | if (!pdata) |
785 | return NULL; | |
786 | ||
5bae0628 | 787 | for (i = 0; i < lp->num_regulators; i++) { |
9ffaa868 KM |
788 | if (pdata->regulator_data[i].id == id) |
789 | return pdata->regulator_data[i].init_data; | |
5bae0628 | 790 | } |
af8b5fc3 | 791 | |
5bae0628 | 792 | return NULL; |
af8b5fc3 KM |
793 | } |
794 | ||
795 | static int lp872x_regulator_register(struct lp872x *lp) | |
796 | { | |
797 | struct regulator_desc *desc; | |
798 | struct regulator_config cfg = { }; | |
799 | struct regulator_dev *rdev; | |
ed602534 | 800 | int i; |
af8b5fc3 | 801 | |
37a6f43d | 802 | for (i = 0; i < lp->num_regulators; i++) { |
af8b5fc3 KM |
803 | desc = (lp->chipid == LP8720) ? &lp8720_regulator_desc[i] : |
804 | &lp8725_regulator_desc[i]; | |
805 | ||
806 | cfg.dev = lp->dev; | |
5bae0628 | 807 | cfg.init_data = lp872x_find_regulator_init_data(desc->id, lp); |
af8b5fc3 KM |
808 | cfg.driver_data = lp; |
809 | cfg.regmap = lp->regmap; | |
810 | ||
ed602534 | 811 | rdev = devm_regulator_register(lp->dev, desc, &cfg); |
af8b5fc3 KM |
812 | if (IS_ERR(rdev)) { |
813 | dev_err(lp->dev, "regulator register err"); | |
ed602534 | 814 | return PTR_ERR(rdev); |
af8b5fc3 | 815 | } |
af8b5fc3 KM |
816 | } |
817 | ||
818 | return 0; | |
af8b5fc3 KM |
819 | } |
820 | ||
821 | static const struct regmap_config lp872x_regmap_config = { | |
822 | .reg_bits = 8, | |
823 | .val_bits = 8, | |
824 | .max_register = MAX_REGISTERS, | |
825 | }; | |
826 | ||
00fd6e61 KM |
827 | #ifdef CONFIG_OF |
828 | ||
829 | #define LP872X_VALID_OPMODE (REGULATOR_MODE_FAST | REGULATOR_MODE_NORMAL) | |
830 | ||
831 | static struct of_regulator_match lp8720_matches[] = { | |
832 | { .name = "ldo1", .driver_data = (void *)LP8720_ID_LDO1, }, | |
833 | { .name = "ldo2", .driver_data = (void *)LP8720_ID_LDO2, }, | |
834 | { .name = "ldo3", .driver_data = (void *)LP8720_ID_LDO3, }, | |
835 | { .name = "ldo4", .driver_data = (void *)LP8720_ID_LDO4, }, | |
836 | { .name = "ldo5", .driver_data = (void *)LP8720_ID_LDO5, }, | |
837 | { .name = "buck", .driver_data = (void *)LP8720_ID_BUCK, }, | |
838 | }; | |
839 | ||
840 | static struct of_regulator_match lp8725_matches[] = { | |
841 | { .name = "ldo1", .driver_data = (void *)LP8725_ID_LDO1, }, | |
842 | { .name = "ldo2", .driver_data = (void *)LP8725_ID_LDO2, }, | |
843 | { .name = "ldo3", .driver_data = (void *)LP8725_ID_LDO3, }, | |
844 | { .name = "ldo4", .driver_data = (void *)LP8725_ID_LDO4, }, | |
845 | { .name = "ldo5", .driver_data = (void *)LP8725_ID_LDO5, }, | |
846 | { .name = "lilo1", .driver_data = (void *)LP8725_ID_LILO1, }, | |
847 | { .name = "lilo2", .driver_data = (void *)LP8725_ID_LILO2, }, | |
848 | { .name = "buck1", .driver_data = (void *)LP8725_ID_BUCK1, }, | |
849 | { .name = "buck2", .driver_data = (void *)LP8725_ID_BUCK2, }, | |
850 | }; | |
851 | ||
852 | static struct lp872x_platform_data | |
853 | *lp872x_populate_pdata_from_dt(struct device *dev, enum lp872x_id which) | |
854 | { | |
855 | struct device_node *np = dev->of_node; | |
856 | struct lp872x_platform_data *pdata; | |
857 | struct of_regulator_match *match; | |
00fd6e61 KM |
858 | int num_matches; |
859 | int count; | |
860 | int i; | |
861 | u8 dvs_state; | |
862 | ||
863 | pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); | |
864 | if (!pdata) | |
804486b1 | 865 | return ERR_PTR(-ENOMEM); |
00fd6e61 KM |
866 | |
867 | of_property_read_u8(np, "ti,general-config", &pdata->general_config); | |
868 | if (of_find_property(np, "ti,update-config", NULL)) | |
869 | pdata->update_config = true; | |
870 | ||
871 | pdata->dvs = devm_kzalloc(dev, sizeof(struct lp872x_dvs), GFP_KERNEL); | |
872 | if (!pdata->dvs) | |
804486b1 | 873 | return ERR_PTR(-ENOMEM); |
00fd6e61 KM |
874 | |
875 | pdata->dvs->gpio = of_get_named_gpio(np, "ti,dvs-gpio", 0); | |
876 | of_property_read_u8(np, "ti,dvs-vsel", (u8 *)&pdata->dvs->vsel); | |
877 | of_property_read_u8(np, "ti,dvs-state", &dvs_state); | |
878 | pdata->dvs->init_state = dvs_state ? DVS_HIGH : DVS_LOW; | |
879 | ||
880 | if (of_get_child_count(np) == 0) | |
881 | goto out; | |
882 | ||
883 | switch (which) { | |
884 | case LP8720: | |
885 | match = lp8720_matches; | |
886 | num_matches = ARRAY_SIZE(lp8720_matches); | |
887 | break; | |
888 | case LP8725: | |
889 | match = lp8725_matches; | |
890 | num_matches = ARRAY_SIZE(lp8725_matches); | |
891 | break; | |
892 | default: | |
893 | goto out; | |
894 | } | |
895 | ||
896 | count = of_regulator_match(dev, np, match, num_matches); | |
897 | if (count <= 0) | |
898 | goto out; | |
899 | ||
900 | for (i = 0; i < num_matches; i++) { | |
37a6f43d MK |
901 | pdata->regulator_data[i].id = |
902 | (enum lp872x_regulator_id)match[i].driver_data; | |
00fd6e61 | 903 | pdata->regulator_data[i].init_data = match[i].init_data; |
00fd6e61 KM |
904 | } |
905 | out: | |
906 | return pdata; | |
907 | } | |
908 | #else | |
909 | static struct lp872x_platform_data | |
910 | *lp872x_populate_pdata_from_dt(struct device *dev, enum lp872x_id which) | |
911 | { | |
912 | return NULL; | |
913 | } | |
914 | #endif | |
915 | ||
af8b5fc3 KM |
916 | static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) |
917 | { | |
918 | struct lp872x *lp; | |
d9ffae15 | 919 | struct lp872x_platform_data *pdata; |
8538c407 | 920 | int ret; |
af8b5fc3 KM |
921 | const int lp872x_num_regulators[] = { |
922 | [LP8720] = LP8720_NUM_REGULATORS, | |
923 | [LP8725] = LP8725_NUM_REGULATORS, | |
924 | }; | |
925 | ||
804486b1 | 926 | if (cl->dev.of_node) { |
d9ffae15 | 927 | pdata = lp872x_populate_pdata_from_dt(&cl->dev, |
00fd6e61 | 928 | (enum lp872x_id)id->driver_data); |
804486b1 MK |
929 | if (IS_ERR(pdata)) |
930 | return PTR_ERR(pdata); | |
931 | } else { | |
d9ffae15 | 932 | pdata = dev_get_platdata(&cl->dev); |
804486b1 | 933 | } |
00fd6e61 | 934 | |
af8b5fc3 KM |
935 | lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL); |
936 | if (!lp) | |
8538c407 | 937 | return -ENOMEM; |
af8b5fc3 | 938 | |
8538c407 | 939 | lp->num_regulators = lp872x_num_regulators[id->driver_data]; |
af8b5fc3 KM |
940 | |
941 | lp->regmap = devm_regmap_init_i2c(cl, &lp872x_regmap_config); | |
942 | if (IS_ERR(lp->regmap)) { | |
943 | ret = PTR_ERR(lp->regmap); | |
944 | dev_err(&cl->dev, "regmap init i2c err: %d\n", ret); | |
8538c407 | 945 | return ret; |
af8b5fc3 KM |
946 | } |
947 | ||
948 | lp->dev = &cl->dev; | |
d9ffae15 | 949 | lp->pdata = pdata; |
af8b5fc3 | 950 | lp->chipid = id->driver_data; |
af8b5fc3 KM |
951 | i2c_set_clientdata(cl, lp); |
952 | ||
953 | ret = lp872x_config(lp); | |
954 | if (ret) | |
8538c407 | 955 | return ret; |
af8b5fc3 KM |
956 | |
957 | return lp872x_regulator_register(lp); | |
af8b5fc3 KM |
958 | } |
959 | ||
00fd6e61 KM |
960 | static const struct of_device_id lp872x_dt_ids[] = { |
961 | { .compatible = "ti,lp8720", }, | |
962 | { .compatible = "ti,lp8725", }, | |
963 | { } | |
964 | }; | |
965 | MODULE_DEVICE_TABLE(of, lp872x_dt_ids); | |
966 | ||
af8b5fc3 KM |
967 | static const struct i2c_device_id lp872x_ids[] = { |
968 | {"lp8720", LP8720}, | |
969 | {"lp8725", LP8725}, | |
970 | { } | |
971 | }; | |
972 | MODULE_DEVICE_TABLE(i2c, lp872x_ids); | |
973 | ||
974 | static struct i2c_driver lp872x_driver = { | |
975 | .driver = { | |
976 | .name = "lp872x", | |
00fd6e61 | 977 | .of_match_table = of_match_ptr(lp872x_dt_ids), |
af8b5fc3 KM |
978 | }, |
979 | .probe = lp872x_probe, | |
af8b5fc3 KM |
980 | .id_table = lp872x_ids, |
981 | }; | |
982 | ||
983 | module_i2c_driver(lp872x_driver); | |
984 | ||
985 | MODULE_DESCRIPTION("TI/National Semiconductor LP872x PMU Regulator Driver"); | |
986 | MODULE_AUTHOR("Milo Kim"); | |
987 | MODULE_LICENSE("GPL"); |