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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
af8b5fc3 KM |
2 | /* |
3 | * Copyright 2012 Texas Instruments | |
4 | * | |
5 | * Author: Milo(Woogyom) Kim <milo.kim@ti.com> | |
af8b5fc3 KM |
6 | */ |
7 | ||
8 | #include <linux/module.h> | |
9 | #include <linux/slab.h> | |
10 | #include <linux/i2c.h> | |
11 | #include <linux/regmap.h> | |
12 | #include <linux/err.h> | |
72bf80cf | 13 | #include <linux/gpio/consumer.h> |
7e6213f4 | 14 | #include <linux/delay.h> |
af8b5fc3 KM |
15 | #include <linux/regulator/lp872x.h> |
16 | #include <linux/regulator/driver.h> | |
17 | #include <linux/platform_device.h> | |
00fd6e61 | 18 | #include <linux/of.h> |
00fd6e61 | 19 | #include <linux/regulator/of_regulator.h> |
af8b5fc3 KM |
20 | |
21 | /* Registers : LP8720/8725 shared */ | |
22 | #define LP872X_GENERAL_CFG 0x00 | |
23 | #define LP872X_LDO1_VOUT 0x01 | |
24 | #define LP872X_LDO2_VOUT 0x02 | |
25 | #define LP872X_LDO3_VOUT 0x03 | |
26 | #define LP872X_LDO4_VOUT 0x04 | |
27 | #define LP872X_LDO5_VOUT 0x05 | |
28 | ||
29 | /* Registers : LP8720 */ | |
30 | #define LP8720_BUCK_VOUT1 0x06 | |
31 | #define LP8720_BUCK_VOUT2 0x07 | |
32 | #define LP8720_ENABLE 0x08 | |
33 | ||
34 | /* Registers : LP8725 */ | |
35 | #define LP8725_LILO1_VOUT 0x06 | |
36 | #define LP8725_LILO2_VOUT 0x07 | |
37 | #define LP8725_BUCK1_VOUT1 0x08 | |
38 | #define LP8725_BUCK1_VOUT2 0x09 | |
39 | #define LP8725_BUCK2_VOUT1 0x0A | |
40 | #define LP8725_BUCK2_VOUT2 0x0B | |
41 | #define LP8725_BUCK_CTRL 0x0C | |
42 | #define LP8725_LDO_CTRL 0x0D | |
43 | ||
44 | /* Mask/shift : LP8720/LP8725 shared */ | |
45 | #define LP872X_VOUT_M 0x1F | |
46 | #define LP872X_START_DELAY_M 0xE0 | |
47 | #define LP872X_START_DELAY_S 5 | |
48 | #define LP872X_EN_LDO1_M BIT(0) | |
49 | #define LP872X_EN_LDO2_M BIT(1) | |
50 | #define LP872X_EN_LDO3_M BIT(2) | |
51 | #define LP872X_EN_LDO4_M BIT(3) | |
52 | #define LP872X_EN_LDO5_M BIT(4) | |
53 | ||
54 | /* Mask/shift : LP8720 */ | |
55 | #define LP8720_TIMESTEP_S 0 /* Addr 00h */ | |
56 | #define LP8720_TIMESTEP_M BIT(0) | |
57 | #define LP8720_EXT_DVS_M BIT(2) | |
58 | #define LP8720_BUCK_FPWM_S 5 /* Addr 07h */ | |
59 | #define LP8720_BUCK_FPWM_M BIT(5) | |
60 | #define LP8720_EN_BUCK_M BIT(5) /* Addr 08h */ | |
61 | #define LP8720_DVS_SEL_M BIT(7) | |
62 | ||
63 | /* Mask/shift : LP8725 */ | |
64 | #define LP8725_TIMESTEP_M 0xC0 /* Addr 00h */ | |
65 | #define LP8725_TIMESTEP_S 6 | |
66 | #define LP8725_BUCK1_EN_M BIT(0) | |
67 | #define LP8725_DVS1_M BIT(2) | |
68 | #define LP8725_DVS2_M BIT(3) | |
69 | #define LP8725_BUCK2_EN_M BIT(4) | |
70 | #define LP8725_BUCK_CL_M 0xC0 /* Addr 09h, 0Bh */ | |
71 | #define LP8725_BUCK_CL_S 6 | |
72 | #define LP8725_BUCK1_FPWM_S 1 /* Addr 0Ch */ | |
73 | #define LP8725_BUCK1_FPWM_M BIT(1) | |
74 | #define LP8725_BUCK2_FPWM_S 5 | |
75 | #define LP8725_BUCK2_FPWM_M BIT(5) | |
76 | #define LP8725_EN_LILO1_M BIT(5) /* Addr 0Dh */ | |
77 | #define LP8725_EN_LILO2_M BIT(6) | |
78 | ||
79 | /* PWM mode */ | |
80 | #define LP872X_FORCE_PWM 1 | |
81 | #define LP872X_AUTO_PWM 0 | |
82 | ||
83 | #define LP8720_NUM_REGULATORS 6 | |
84 | #define LP8725_NUM_REGULATORS 9 | |
85 | #define EXTERN_DVS_USED 0 | |
86 | #define MAX_DELAY 6 | |
87 | ||
b158fba6 KM |
88 | /* Default DVS Mode */ |
89 | #define LP8720_DEFAULT_DVS 0 | |
90 | #define LP8725_DEFAULT_DVS BIT(2) | |
91 | ||
af8b5fc3 KM |
92 | /* dump registers in regmap-debugfs */ |
93 | #define MAX_REGISTERS 0x0F | |
94 | ||
95 | enum lp872x_id { | |
96 | LP8720, | |
97 | LP8725, | |
98 | }; | |
99 | ||
100 | struct lp872x { | |
101 | struct regmap *regmap; | |
102 | struct device *dev; | |
103 | enum lp872x_id chipid; | |
104 | struct lp872x_platform_data *pdata; | |
af8b5fc3 | 105 | int num_regulators; |
061514db | 106 | enum gpiod_flags dvs_pin; |
af8b5fc3 KM |
107 | }; |
108 | ||
109 | /* LP8720/LP8725 shared voltage table for LDOs */ | |
110 | static const unsigned int lp872x_ldo_vtbl[] = { | |
111 | 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000, | |
112 | 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 2000000, | |
113 | 2100000, 2200000, 2300000, 2400000, 2500000, 2600000, 2650000, 2700000, | |
114 | 2750000, 2800000, 2850000, 2900000, 2950000, 3000000, 3100000, 3300000, | |
115 | }; | |
116 | ||
117 | /* LP8720 LDO4 voltage table */ | |
118 | static const unsigned int lp8720_ldo4_vtbl[] = { | |
119 | 800000, 850000, 900000, 1000000, 1100000, 1200000, 1250000, 1300000, | |
120 | 1350000, 1400000, 1450000, 1500000, 1550000, 1600000, 1650000, 1700000, | |
121 | 1750000, 1800000, 1850000, 1900000, 2000000, 2100000, 2200000, 2300000, | |
122 | 2400000, 2500000, 2600000, 2650000, 2700000, 2750000, 2800000, 2850000, | |
123 | }; | |
124 | ||
125 | /* LP8725 LILO(Low Input Low Output) voltage table */ | |
126 | static const unsigned int lp8725_lilo_vtbl[] = { | |
127 | 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, | |
128 | 1200000, 1250000, 1300000, 1350000, 1400000, 1500000, 1600000, 1700000, | |
129 | 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, | |
130 | 2600000, 2700000, 2800000, 2850000, 2900000, 3000000, 3100000, 3300000, | |
131 | }; | |
132 | ||
133 | /* LP8720 BUCK voltage table */ | |
134 | #define EXT_R 0 /* external resistor divider */ | |
135 | static const unsigned int lp8720_buck_vtbl[] = { | |
136 | EXT_R, 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, | |
137 | 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, | |
138 | 1550000, 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, | |
139 | 1950000, 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, | |
140 | }; | |
141 | ||
142 | /* LP8725 BUCK voltage table */ | |
143 | static const unsigned int lp8725_buck_vtbl[] = { | |
144 | 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, | |
145 | 1200000, 1250000, 1300000, 1350000, 1400000, 1500000, 1600000, 1700000, | |
146 | 1750000, 1800000, 1850000, 1900000, 2000000, 2100000, 2200000, 2300000, | |
147 | 2400000, 2500000, 2600000, 2700000, 2800000, 2850000, 2900000, 3000000, | |
148 | }; | |
149 | ||
150 | /* LP8725 BUCK current limit */ | |
151 | static const unsigned int lp8725_buck_uA[] = { | |
152 | 460000, 780000, 1050000, 1370000, | |
153 | }; | |
154 | ||
155 | static int lp872x_read_byte(struct lp872x *lp, u8 addr, u8 *data) | |
156 | { | |
157 | int ret; | |
158 | unsigned int val; | |
159 | ||
160 | ret = regmap_read(lp->regmap, addr, &val); | |
161 | if (ret < 0) { | |
162 | dev_err(lp->dev, "failed to read 0x%.2x\n", addr); | |
163 | return ret; | |
164 | } | |
165 | ||
166 | *data = (u8)val; | |
167 | return 0; | |
168 | } | |
169 | ||
170 | static inline int lp872x_write_byte(struct lp872x *lp, u8 addr, u8 data) | |
171 | { | |
172 | return regmap_write(lp->regmap, addr, data); | |
173 | } | |
174 | ||
175 | static inline int lp872x_update_bits(struct lp872x *lp, u8 addr, | |
176 | unsigned int mask, u8 data) | |
177 | { | |
178 | return regmap_update_bits(lp->regmap, addr, mask, data); | |
179 | } | |
180 | ||
af8b5fc3 KM |
181 | static int lp872x_get_timestep_usec(struct lp872x *lp) |
182 | { | |
183 | enum lp872x_id chip = lp->chipid; | |
184 | u8 val, mask, shift; | |
185 | int *time_usec, size, ret; | |
186 | int lp8720_time_usec[] = { 25, 50 }; | |
187 | int lp8725_time_usec[] = { 32, 64, 128, 256 }; | |
188 | ||
189 | switch (chip) { | |
190 | case LP8720: | |
191 | mask = LP8720_TIMESTEP_M; | |
192 | shift = LP8720_TIMESTEP_S; | |
193 | time_usec = &lp8720_time_usec[0]; | |
194 | size = ARRAY_SIZE(lp8720_time_usec); | |
195 | break; | |
196 | case LP8725: | |
197 | mask = LP8725_TIMESTEP_M; | |
198 | shift = LP8725_TIMESTEP_S; | |
199 | time_usec = &lp8725_time_usec[0]; | |
200 | size = ARRAY_SIZE(lp8725_time_usec); | |
201 | break; | |
202 | default: | |
203 | return -EINVAL; | |
204 | } | |
205 | ||
206 | ret = lp872x_read_byte(lp, LP872X_GENERAL_CFG, &val); | |
207 | if (ret) | |
ad5ec6cd | 208 | return ret; |
af8b5fc3 KM |
209 | |
210 | val = (val & mask) >> shift; | |
211 | if (val >= size) | |
212 | return -EINVAL; | |
213 | ||
214 | return *(time_usec + val); | |
215 | } | |
216 | ||
217 | static int lp872x_regulator_enable_time(struct regulator_dev *rdev) | |
218 | { | |
219 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
2c129927 | 220 | enum lp872x_regulator_id rid = rdev_get_id(rdev); |
af8b5fc3 | 221 | int time_step_us = lp872x_get_timestep_usec(lp); |
2c129927 | 222 | int ret; |
af8b5fc3 KM |
223 | u8 addr, val; |
224 | ||
225 | if (time_step_us < 0) | |
ad5ec6cd | 226 | return time_step_us; |
af8b5fc3 | 227 | |
2c129927 AL |
228 | switch (rid) { |
229 | case LP8720_ID_LDO1 ... LP8720_ID_BUCK: | |
230 | addr = LP872X_LDO1_VOUT + rid; | |
af8b5fc3 | 231 | break; |
2c129927 AL |
232 | case LP8725_ID_LDO1 ... LP8725_ID_BUCK1: |
233 | addr = LP872X_LDO1_VOUT + rid - LP8725_ID_BASE; | |
af8b5fc3 KM |
234 | break; |
235 | case LP8725_ID_BUCK2: | |
236 | addr = LP8725_BUCK2_VOUT1; | |
237 | break; | |
238 | default: | |
239 | return -EINVAL; | |
240 | } | |
241 | ||
242 | ret = lp872x_read_byte(lp, addr, &val); | |
243 | if (ret) | |
244 | return ret; | |
245 | ||
246 | val = (val & LP872X_START_DELAY_M) >> LP872X_START_DELAY_S; | |
247 | ||
248 | return val > MAX_DELAY ? 0 : val * time_step_us; | |
249 | } | |
250 | ||
9d6da6fc | 251 | static void lp872x_set_dvs(struct lp872x *lp, enum lp872x_dvs_sel dvs_sel, |
72bf80cf | 252 | struct gpio_desc *gpio) |
af8b5fc3 | 253 | { |
061514db | 254 | enum gpiod_flags state; |
af8b5fc3 | 255 | |
061514db | 256 | state = dvs_sel == SEL_V1 ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW; |
72bf80cf | 257 | gpiod_set_value(gpio, state); |
af8b5fc3 KM |
258 | lp->dvs_pin = state; |
259 | } | |
260 | ||
261 | static u8 lp872x_select_buck_vout_addr(struct lp872x *lp, | |
262 | enum lp872x_regulator_id buck) | |
263 | { | |
264 | u8 val, addr; | |
265 | ||
266 | if (lp872x_read_byte(lp, LP872X_GENERAL_CFG, &val)) | |
267 | return 0; | |
268 | ||
269 | switch (buck) { | |
270 | case LP8720_ID_BUCK: | |
271 | if (val & LP8720_EXT_DVS_M) { | |
061514db | 272 | addr = (lp->dvs_pin == GPIOD_OUT_HIGH) ? |
af8b5fc3 KM |
273 | LP8720_BUCK_VOUT1 : LP8720_BUCK_VOUT2; |
274 | } else { | |
275 | if (lp872x_read_byte(lp, LP8720_ENABLE, &val)) | |
276 | return 0; | |
277 | ||
278 | addr = val & LP8720_DVS_SEL_M ? | |
279 | LP8720_BUCK_VOUT1 : LP8720_BUCK_VOUT2; | |
280 | } | |
281 | break; | |
282 | case LP8725_ID_BUCK1: | |
283 | if (val & LP8725_DVS1_M) | |
284 | addr = LP8725_BUCK1_VOUT1; | |
285 | else | |
061514db | 286 | addr = (lp->dvs_pin == GPIOD_OUT_HIGH) ? |
af8b5fc3 KM |
287 | LP8725_BUCK1_VOUT1 : LP8725_BUCK1_VOUT2; |
288 | break; | |
289 | case LP8725_ID_BUCK2: | |
290 | addr = val & LP8725_DVS2_M ? | |
291 | LP8725_BUCK2_VOUT1 : LP8725_BUCK2_VOUT2; | |
292 | break; | |
293 | default: | |
294 | return 0; | |
295 | } | |
296 | ||
297 | return addr; | |
298 | } | |
299 | ||
300 | static bool lp872x_is_valid_buck_addr(u8 addr) | |
301 | { | |
302 | switch (addr) { | |
303 | case LP8720_BUCK_VOUT1: | |
304 | case LP8720_BUCK_VOUT2: | |
305 | case LP8725_BUCK1_VOUT1: | |
306 | case LP8725_BUCK1_VOUT2: | |
307 | case LP8725_BUCK2_VOUT1: | |
308 | case LP8725_BUCK2_VOUT2: | |
309 | return true; | |
310 | default: | |
311 | return false; | |
312 | } | |
313 | } | |
314 | ||
315 | static int lp872x_buck_set_voltage_sel(struct regulator_dev *rdev, | |
316 | unsigned selector) | |
317 | { | |
318 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
319 | enum lp872x_regulator_id buck = rdev_get_id(rdev); | |
320 | u8 addr, mask = LP872X_VOUT_M; | |
9d6da6fc | 321 | struct lp872x_dvs *dvs = lp->pdata ? lp->pdata->dvs : NULL; |
af8b5fc3 | 322 | |
72bf80cf | 323 | if (dvs && dvs->gpio) |
9d6da6fc | 324 | lp872x_set_dvs(lp, dvs->vsel, dvs->gpio); |
af8b5fc3 KM |
325 | |
326 | addr = lp872x_select_buck_vout_addr(lp, buck); | |
327 | if (!lp872x_is_valid_buck_addr(addr)) | |
328 | return -EINVAL; | |
329 | ||
330 | return lp872x_update_bits(lp, addr, mask, selector); | |
331 | } | |
332 | ||
333 | static int lp872x_buck_get_voltage_sel(struct regulator_dev *rdev) | |
334 | { | |
335 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
336 | enum lp872x_regulator_id buck = rdev_get_id(rdev); | |
337 | u8 addr, val; | |
338 | int ret; | |
339 | ||
340 | addr = lp872x_select_buck_vout_addr(lp, buck); | |
341 | if (!lp872x_is_valid_buck_addr(addr)) | |
342 | return -EINVAL; | |
343 | ||
344 | ret = lp872x_read_byte(lp, addr, &val); | |
345 | if (ret) | |
346 | return ret; | |
347 | ||
348 | return val & LP872X_VOUT_M; | |
349 | } | |
350 | ||
af8b5fc3 KM |
351 | static int lp872x_buck_set_mode(struct regulator_dev *rdev, unsigned int mode) |
352 | { | |
353 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
354 | enum lp872x_regulator_id buck = rdev_get_id(rdev); | |
355 | u8 addr, mask, shift, val; | |
356 | ||
357 | switch (buck) { | |
358 | case LP8720_ID_BUCK: | |
359 | addr = LP8720_BUCK_VOUT2; | |
360 | mask = LP8720_BUCK_FPWM_M; | |
361 | shift = LP8720_BUCK_FPWM_S; | |
362 | break; | |
363 | case LP8725_ID_BUCK1: | |
364 | addr = LP8725_BUCK_CTRL; | |
365 | mask = LP8725_BUCK1_FPWM_M; | |
366 | shift = LP8725_BUCK1_FPWM_S; | |
367 | break; | |
368 | case LP8725_ID_BUCK2: | |
369 | addr = LP8725_BUCK_CTRL; | |
370 | mask = LP8725_BUCK2_FPWM_M; | |
371 | shift = LP8725_BUCK2_FPWM_S; | |
372 | break; | |
373 | default: | |
374 | return -EINVAL; | |
375 | } | |
376 | ||
377 | if (mode == REGULATOR_MODE_FAST) | |
378 | val = LP872X_FORCE_PWM << shift; | |
379 | else if (mode == REGULATOR_MODE_NORMAL) | |
380 | val = LP872X_AUTO_PWM << shift; | |
381 | else | |
382 | return -EINVAL; | |
383 | ||
384 | return lp872x_update_bits(lp, addr, mask, val); | |
385 | } | |
386 | ||
387 | static unsigned int lp872x_buck_get_mode(struct regulator_dev *rdev) | |
388 | { | |
389 | struct lp872x *lp = rdev_get_drvdata(rdev); | |
390 | enum lp872x_regulator_id buck = rdev_get_id(rdev); | |
391 | u8 addr, mask, val; | |
392 | int ret; | |
393 | ||
394 | switch (buck) { | |
395 | case LP8720_ID_BUCK: | |
396 | addr = LP8720_BUCK_VOUT2; | |
397 | mask = LP8720_BUCK_FPWM_M; | |
398 | break; | |
399 | case LP8725_ID_BUCK1: | |
400 | addr = LP8725_BUCK_CTRL; | |
401 | mask = LP8725_BUCK1_FPWM_M; | |
402 | break; | |
403 | case LP8725_ID_BUCK2: | |
404 | addr = LP8725_BUCK_CTRL; | |
405 | mask = LP8725_BUCK2_FPWM_M; | |
406 | break; | |
407 | default: | |
408 | return -EINVAL; | |
409 | } | |
410 | ||
411 | ret = lp872x_read_byte(lp, addr, &val); | |
412 | if (ret) | |
413 | return ret; | |
414 | ||
415 | return val & mask ? REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL; | |
416 | } | |
417 | ||
f966404f | 418 | static const struct regulator_ops lp872x_ldo_ops = { |
af8b5fc3 | 419 | .list_voltage = regulator_list_voltage_table, |
a32f9e02 | 420 | .map_voltage = regulator_map_voltage_ascend, |
af8b5fc3 KM |
421 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
422 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
423 | .enable = regulator_enable_regmap, | |
424 | .disable = regulator_disable_regmap, | |
425 | .is_enabled = regulator_is_enabled_regmap, | |
426 | .enable_time = lp872x_regulator_enable_time, | |
427 | }; | |
428 | ||
f966404f | 429 | static const struct regulator_ops lp8720_buck_ops = { |
af8b5fc3 | 430 | .list_voltage = regulator_list_voltage_table, |
a32f9e02 | 431 | .map_voltage = regulator_map_voltage_ascend, |
af8b5fc3 KM |
432 | .set_voltage_sel = lp872x_buck_set_voltage_sel, |
433 | .get_voltage_sel = lp872x_buck_get_voltage_sel, | |
434 | .enable = regulator_enable_regmap, | |
435 | .disable = regulator_disable_regmap, | |
436 | .is_enabled = regulator_is_enabled_regmap, | |
437 | .enable_time = lp872x_regulator_enable_time, | |
438 | .set_mode = lp872x_buck_set_mode, | |
439 | .get_mode = lp872x_buck_get_mode, | |
440 | }; | |
441 | ||
f966404f | 442 | static const struct regulator_ops lp8725_buck_ops = { |
af8b5fc3 | 443 | .list_voltage = regulator_list_voltage_table, |
a32f9e02 | 444 | .map_voltage = regulator_map_voltage_ascend, |
af8b5fc3 KM |
445 | .set_voltage_sel = lp872x_buck_set_voltage_sel, |
446 | .get_voltage_sel = lp872x_buck_get_voltage_sel, | |
447 | .enable = regulator_enable_regmap, | |
448 | .disable = regulator_disable_regmap, | |
449 | .is_enabled = regulator_is_enabled_regmap, | |
450 | .enable_time = lp872x_regulator_enable_time, | |
451 | .set_mode = lp872x_buck_set_mode, | |
452 | .get_mode = lp872x_buck_get_mode, | |
8918f068 AL |
453 | .set_current_limit = regulator_set_current_limit_regmap, |
454 | .get_current_limit = regulator_get_current_limit_regmap, | |
af8b5fc3 KM |
455 | }; |
456 | ||
f966404f | 457 | static const struct regulator_desc lp8720_regulator_desc[] = { |
af8b5fc3 KM |
458 | { |
459 | .name = "ldo1", | |
1f97fe47 | 460 | .of_match = of_match_ptr("ldo1"), |
af8b5fc3 KM |
461 | .id = LP8720_ID_LDO1, |
462 | .ops = &lp872x_ldo_ops, | |
463 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
464 | .volt_table = lp872x_ldo_vtbl, | |
465 | .type = REGULATOR_VOLTAGE, | |
466 | .owner = THIS_MODULE, | |
467 | .vsel_reg = LP872X_LDO1_VOUT, | |
468 | .vsel_mask = LP872X_VOUT_M, | |
469 | .enable_reg = LP8720_ENABLE, | |
470 | .enable_mask = LP872X_EN_LDO1_M, | |
471 | }, | |
472 | { | |
473 | .name = "ldo2", | |
1f97fe47 | 474 | .of_match = of_match_ptr("ldo2"), |
af8b5fc3 KM |
475 | .id = LP8720_ID_LDO2, |
476 | .ops = &lp872x_ldo_ops, | |
477 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
478 | .volt_table = lp872x_ldo_vtbl, | |
479 | .type = REGULATOR_VOLTAGE, | |
480 | .owner = THIS_MODULE, | |
481 | .vsel_reg = LP872X_LDO2_VOUT, | |
482 | .vsel_mask = LP872X_VOUT_M, | |
483 | .enable_reg = LP8720_ENABLE, | |
484 | .enable_mask = LP872X_EN_LDO2_M, | |
485 | }, | |
486 | { | |
487 | .name = "ldo3", | |
1f97fe47 | 488 | .of_match = of_match_ptr("ldo3"), |
af8b5fc3 KM |
489 | .id = LP8720_ID_LDO3, |
490 | .ops = &lp872x_ldo_ops, | |
491 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
492 | .volt_table = lp872x_ldo_vtbl, | |
493 | .type = REGULATOR_VOLTAGE, | |
494 | .owner = THIS_MODULE, | |
495 | .vsel_reg = LP872X_LDO3_VOUT, | |
496 | .vsel_mask = LP872X_VOUT_M, | |
497 | .enable_reg = LP8720_ENABLE, | |
498 | .enable_mask = LP872X_EN_LDO3_M, | |
499 | }, | |
500 | { | |
501 | .name = "ldo4", | |
1f97fe47 | 502 | .of_match = of_match_ptr("ldo4"), |
af8b5fc3 KM |
503 | .id = LP8720_ID_LDO4, |
504 | .ops = &lp872x_ldo_ops, | |
505 | .n_voltages = ARRAY_SIZE(lp8720_ldo4_vtbl), | |
506 | .volt_table = lp8720_ldo4_vtbl, | |
507 | .type = REGULATOR_VOLTAGE, | |
508 | .owner = THIS_MODULE, | |
509 | .vsel_reg = LP872X_LDO4_VOUT, | |
510 | .vsel_mask = LP872X_VOUT_M, | |
511 | .enable_reg = LP8720_ENABLE, | |
512 | .enable_mask = LP872X_EN_LDO4_M, | |
513 | }, | |
514 | { | |
515 | .name = "ldo5", | |
1f97fe47 | 516 | .of_match = of_match_ptr("ldo5"), |
af8b5fc3 KM |
517 | .id = LP8720_ID_LDO5, |
518 | .ops = &lp872x_ldo_ops, | |
519 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
520 | .volt_table = lp872x_ldo_vtbl, | |
521 | .type = REGULATOR_VOLTAGE, | |
522 | .owner = THIS_MODULE, | |
523 | .vsel_reg = LP872X_LDO5_VOUT, | |
524 | .vsel_mask = LP872X_VOUT_M, | |
525 | .enable_reg = LP8720_ENABLE, | |
526 | .enable_mask = LP872X_EN_LDO5_M, | |
527 | }, | |
528 | { | |
529 | .name = "buck", | |
1f97fe47 | 530 | .of_match = of_match_ptr("buck"), |
af8b5fc3 KM |
531 | .id = LP8720_ID_BUCK, |
532 | .ops = &lp8720_buck_ops, | |
533 | .n_voltages = ARRAY_SIZE(lp8720_buck_vtbl), | |
534 | .volt_table = lp8720_buck_vtbl, | |
535 | .type = REGULATOR_VOLTAGE, | |
536 | .owner = THIS_MODULE, | |
537 | .enable_reg = LP8720_ENABLE, | |
538 | .enable_mask = LP8720_EN_BUCK_M, | |
539 | }, | |
540 | }; | |
541 | ||
f966404f | 542 | static const struct regulator_desc lp8725_regulator_desc[] = { |
af8b5fc3 KM |
543 | { |
544 | .name = "ldo1", | |
1f97fe47 | 545 | .of_match = of_match_ptr("ldo1"), |
af8b5fc3 KM |
546 | .id = LP8725_ID_LDO1, |
547 | .ops = &lp872x_ldo_ops, | |
548 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
549 | .volt_table = lp872x_ldo_vtbl, | |
550 | .type = REGULATOR_VOLTAGE, | |
551 | .owner = THIS_MODULE, | |
552 | .vsel_reg = LP872X_LDO1_VOUT, | |
553 | .vsel_mask = LP872X_VOUT_M, | |
554 | .enable_reg = LP8725_LDO_CTRL, | |
555 | .enable_mask = LP872X_EN_LDO1_M, | |
556 | }, | |
557 | { | |
558 | .name = "ldo2", | |
1f97fe47 | 559 | .of_match = of_match_ptr("ldo2"), |
af8b5fc3 KM |
560 | .id = LP8725_ID_LDO2, |
561 | .ops = &lp872x_ldo_ops, | |
562 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
563 | .volt_table = lp872x_ldo_vtbl, | |
564 | .type = REGULATOR_VOLTAGE, | |
565 | .owner = THIS_MODULE, | |
566 | .vsel_reg = LP872X_LDO2_VOUT, | |
567 | .vsel_mask = LP872X_VOUT_M, | |
568 | .enable_reg = LP8725_LDO_CTRL, | |
569 | .enable_mask = LP872X_EN_LDO2_M, | |
570 | }, | |
571 | { | |
572 | .name = "ldo3", | |
1f97fe47 | 573 | .of_match = of_match_ptr("ldo3"), |
af8b5fc3 KM |
574 | .id = LP8725_ID_LDO3, |
575 | .ops = &lp872x_ldo_ops, | |
576 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
577 | .volt_table = lp872x_ldo_vtbl, | |
578 | .type = REGULATOR_VOLTAGE, | |
579 | .owner = THIS_MODULE, | |
580 | .vsel_reg = LP872X_LDO3_VOUT, | |
581 | .vsel_mask = LP872X_VOUT_M, | |
582 | .enable_reg = LP8725_LDO_CTRL, | |
583 | .enable_mask = LP872X_EN_LDO3_M, | |
584 | }, | |
585 | { | |
586 | .name = "ldo4", | |
1f97fe47 | 587 | .of_match = of_match_ptr("ldo4"), |
af8b5fc3 KM |
588 | .id = LP8725_ID_LDO4, |
589 | .ops = &lp872x_ldo_ops, | |
590 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
591 | .volt_table = lp872x_ldo_vtbl, | |
592 | .type = REGULATOR_VOLTAGE, | |
593 | .owner = THIS_MODULE, | |
594 | .vsel_reg = LP872X_LDO4_VOUT, | |
595 | .vsel_mask = LP872X_VOUT_M, | |
596 | .enable_reg = LP8725_LDO_CTRL, | |
597 | .enable_mask = LP872X_EN_LDO4_M, | |
598 | }, | |
599 | { | |
600 | .name = "ldo5", | |
1f97fe47 | 601 | .of_match = of_match_ptr("ldo5"), |
af8b5fc3 KM |
602 | .id = LP8725_ID_LDO5, |
603 | .ops = &lp872x_ldo_ops, | |
604 | .n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl), | |
605 | .volt_table = lp872x_ldo_vtbl, | |
606 | .type = REGULATOR_VOLTAGE, | |
607 | .owner = THIS_MODULE, | |
608 | .vsel_reg = LP872X_LDO5_VOUT, | |
609 | .vsel_mask = LP872X_VOUT_M, | |
610 | .enable_reg = LP8725_LDO_CTRL, | |
611 | .enable_mask = LP872X_EN_LDO5_M, | |
612 | }, | |
613 | { | |
614 | .name = "lilo1", | |
1f97fe47 | 615 | .of_match = of_match_ptr("lilo1"), |
af8b5fc3 KM |
616 | .id = LP8725_ID_LILO1, |
617 | .ops = &lp872x_ldo_ops, | |
618 | .n_voltages = ARRAY_SIZE(lp8725_lilo_vtbl), | |
619 | .volt_table = lp8725_lilo_vtbl, | |
620 | .type = REGULATOR_VOLTAGE, | |
621 | .owner = THIS_MODULE, | |
622 | .vsel_reg = LP8725_LILO1_VOUT, | |
623 | .vsel_mask = LP872X_VOUT_M, | |
624 | .enable_reg = LP8725_LDO_CTRL, | |
625 | .enable_mask = LP8725_EN_LILO1_M, | |
626 | }, | |
627 | { | |
628 | .name = "lilo2", | |
1f97fe47 | 629 | .of_match = of_match_ptr("lilo2"), |
af8b5fc3 KM |
630 | .id = LP8725_ID_LILO2, |
631 | .ops = &lp872x_ldo_ops, | |
632 | .n_voltages = ARRAY_SIZE(lp8725_lilo_vtbl), | |
633 | .volt_table = lp8725_lilo_vtbl, | |
634 | .type = REGULATOR_VOLTAGE, | |
635 | .owner = THIS_MODULE, | |
636 | .vsel_reg = LP8725_LILO2_VOUT, | |
637 | .vsel_mask = LP872X_VOUT_M, | |
638 | .enable_reg = LP8725_LDO_CTRL, | |
639 | .enable_mask = LP8725_EN_LILO2_M, | |
640 | }, | |
641 | { | |
642 | .name = "buck1", | |
1f97fe47 | 643 | .of_match = of_match_ptr("buck1"), |
af8b5fc3 KM |
644 | .id = LP8725_ID_BUCK1, |
645 | .ops = &lp8725_buck_ops, | |
646 | .n_voltages = ARRAY_SIZE(lp8725_buck_vtbl), | |
647 | .volt_table = lp8725_buck_vtbl, | |
648 | .type = REGULATOR_VOLTAGE, | |
649 | .owner = THIS_MODULE, | |
650 | .enable_reg = LP872X_GENERAL_CFG, | |
651 | .enable_mask = LP8725_BUCK1_EN_M, | |
8918f068 AL |
652 | .curr_table = lp8725_buck_uA, |
653 | .n_current_limits = ARRAY_SIZE(lp8725_buck_uA), | |
654 | .csel_reg = LP8725_BUCK1_VOUT2, | |
655 | .csel_mask = LP8725_BUCK_CL_M, | |
af8b5fc3 KM |
656 | }, |
657 | { | |
658 | .name = "buck2", | |
1f97fe47 | 659 | .of_match = of_match_ptr("buck2"), |
af8b5fc3 KM |
660 | .id = LP8725_ID_BUCK2, |
661 | .ops = &lp8725_buck_ops, | |
662 | .n_voltages = ARRAY_SIZE(lp8725_buck_vtbl), | |
663 | .volt_table = lp8725_buck_vtbl, | |
664 | .type = REGULATOR_VOLTAGE, | |
665 | .owner = THIS_MODULE, | |
666 | .enable_reg = LP872X_GENERAL_CFG, | |
667 | .enable_mask = LP8725_BUCK2_EN_M, | |
8918f068 AL |
668 | .curr_table = lp8725_buck_uA, |
669 | .n_current_limits = ARRAY_SIZE(lp8725_buck_uA), | |
670 | .csel_reg = LP8725_BUCK2_VOUT2, | |
671 | .csel_mask = LP8725_BUCK_CL_M, | |
af8b5fc3 KM |
672 | }, |
673 | }; | |
674 | ||
af8b5fc3 KM |
675 | static int lp872x_init_dvs(struct lp872x *lp) |
676 | { | |
b158fba6 | 677 | struct lp872x_dvs *dvs = lp->pdata ? lp->pdata->dvs : NULL; |
061514db | 678 | enum gpiod_flags pinstate; |
b158fba6 KM |
679 | u8 mask[] = { LP8720_EXT_DVS_M, LP8725_DVS1_M | LP8725_DVS2_M }; |
680 | u8 default_dvs_mode[] = { LP8720_DEFAULT_DVS, LP8725_DEFAULT_DVS }; | |
681 | ||
682 | if (!dvs) | |
683 | goto set_default_dvs_mode; | |
af8b5fc3 | 684 | |
72bf80cf | 685 | if (!dvs->gpio) |
00fd6e61 | 686 | goto set_default_dvs_mode; |
af8b5fc3 KM |
687 | |
688 | pinstate = dvs->init_state; | |
72bf80cf MC |
689 | dvs->gpio = devm_gpiod_get_optional(lp->dev, "ti,dvs", pinstate); |
690 | ||
691 | if (IS_ERR(dvs->gpio)) { | |
692 | dev_err(lp->dev, "gpio request err: %ld\n", PTR_ERR(dvs->gpio)); | |
693 | return PTR_ERR(dvs->gpio); | |
af8b5fc3 KM |
694 | } |
695 | ||
696 | lp->dvs_pin = pinstate; | |
af8b5fc3 KM |
697 | |
698 | return 0; | |
b158fba6 KM |
699 | |
700 | set_default_dvs_mode: | |
701 | return lp872x_update_bits(lp, LP872X_GENERAL_CFG, mask[lp->chipid], | |
702 | default_dvs_mode[lp->chipid]); | |
af8b5fc3 KM |
703 | } |
704 | ||
7e6213f4 PK |
705 | static int lp872x_hw_enable(struct lp872x *lp) |
706 | { | |
7e6213f4 PK |
707 | if (!lp->pdata) |
708 | return -EINVAL; | |
709 | ||
72bf80cf | 710 | if (!lp->pdata->enable_gpio) |
7e6213f4 PK |
711 | return 0; |
712 | ||
713 | /* Always set enable GPIO high. */ | |
72bf80cf MC |
714 | lp->pdata->enable_gpio = devm_gpiod_get_optional(lp->dev, "enable", GPIOD_OUT_HIGH); |
715 | if (IS_ERR(lp->pdata->enable_gpio)) { | |
716 | dev_err(lp->dev, "gpio request err: %ld\n", PTR_ERR(lp->pdata->enable_gpio)); | |
717 | return PTR_ERR(lp->pdata->enable_gpio); | |
7e6213f4 PK |
718 | } |
719 | ||
720 | /* Each chip has a different enable delay. */ | |
721 | if (lp->chipid == LP8720) | |
722 | usleep_range(LP8720_ENABLE_DELAY, 1.5 * LP8720_ENABLE_DELAY); | |
723 | else | |
724 | usleep_range(LP8725_ENABLE_DELAY, 1.5 * LP8725_ENABLE_DELAY); | |
725 | ||
726 | return 0; | |
727 | } | |
728 | ||
af8b5fc3 KM |
729 | static int lp872x_config(struct lp872x *lp) |
730 | { | |
731 | struct lp872x_platform_data *pdata = lp->pdata; | |
732 | int ret; | |
733 | ||
86b3fef0 KM |
734 | if (!pdata || !pdata->update_config) |
735 | goto init_dvs; | |
af8b5fc3 KM |
736 | |
737 | ret = lp872x_write_byte(lp, LP872X_GENERAL_CFG, pdata->general_config); | |
738 | if (ret) | |
739 | return ret; | |
740 | ||
86b3fef0 | 741 | init_dvs: |
af8b5fc3 KM |
742 | return lp872x_init_dvs(lp); |
743 | } | |
744 | ||
745 | static struct regulator_init_data | |
5bae0628 | 746 | *lp872x_find_regulator_init_data(int id, struct lp872x *lp) |
af8b5fc3 | 747 | { |
9ffaa868 | 748 | struct lp872x_platform_data *pdata = lp->pdata; |
5bae0628 | 749 | int i; |
af8b5fc3 | 750 | |
9ffaa868 KM |
751 | if (!pdata) |
752 | return NULL; | |
753 | ||
5bae0628 | 754 | for (i = 0; i < lp->num_regulators; i++) { |
9ffaa868 KM |
755 | if (pdata->regulator_data[i].id == id) |
756 | return pdata->regulator_data[i].init_data; | |
5bae0628 | 757 | } |
af8b5fc3 | 758 | |
5bae0628 | 759 | return NULL; |
af8b5fc3 KM |
760 | } |
761 | ||
762 | static int lp872x_regulator_register(struct lp872x *lp) | |
763 | { | |
f966404f | 764 | const struct regulator_desc *desc; |
af8b5fc3 KM |
765 | struct regulator_config cfg = { }; |
766 | struct regulator_dev *rdev; | |
ed602534 | 767 | int i; |
af8b5fc3 | 768 | |
37a6f43d | 769 | for (i = 0; i < lp->num_regulators; i++) { |
af8b5fc3 KM |
770 | desc = (lp->chipid == LP8720) ? &lp8720_regulator_desc[i] : |
771 | &lp8725_regulator_desc[i]; | |
772 | ||
773 | cfg.dev = lp->dev; | |
5bae0628 | 774 | cfg.init_data = lp872x_find_regulator_init_data(desc->id, lp); |
af8b5fc3 KM |
775 | cfg.driver_data = lp; |
776 | cfg.regmap = lp->regmap; | |
777 | ||
ed602534 | 778 | rdev = devm_regulator_register(lp->dev, desc, &cfg); |
af8b5fc3 KM |
779 | if (IS_ERR(rdev)) { |
780 | dev_err(lp->dev, "regulator register err"); | |
ed602534 | 781 | return PTR_ERR(rdev); |
af8b5fc3 | 782 | } |
af8b5fc3 KM |
783 | } |
784 | ||
785 | return 0; | |
af8b5fc3 KM |
786 | } |
787 | ||
788 | static const struct regmap_config lp872x_regmap_config = { | |
789 | .reg_bits = 8, | |
790 | .val_bits = 8, | |
791 | .max_register = MAX_REGISTERS, | |
792 | }; | |
793 | ||
00fd6e61 KM |
794 | #ifdef CONFIG_OF |
795 | ||
796 | #define LP872X_VALID_OPMODE (REGULATOR_MODE_FAST | REGULATOR_MODE_NORMAL) | |
797 | ||
798 | static struct of_regulator_match lp8720_matches[] = { | |
799 | { .name = "ldo1", .driver_data = (void *)LP8720_ID_LDO1, }, | |
800 | { .name = "ldo2", .driver_data = (void *)LP8720_ID_LDO2, }, | |
801 | { .name = "ldo3", .driver_data = (void *)LP8720_ID_LDO3, }, | |
802 | { .name = "ldo4", .driver_data = (void *)LP8720_ID_LDO4, }, | |
803 | { .name = "ldo5", .driver_data = (void *)LP8720_ID_LDO5, }, | |
804 | { .name = "buck", .driver_data = (void *)LP8720_ID_BUCK, }, | |
805 | }; | |
806 | ||
807 | static struct of_regulator_match lp8725_matches[] = { | |
808 | { .name = "ldo1", .driver_data = (void *)LP8725_ID_LDO1, }, | |
809 | { .name = "ldo2", .driver_data = (void *)LP8725_ID_LDO2, }, | |
810 | { .name = "ldo3", .driver_data = (void *)LP8725_ID_LDO3, }, | |
811 | { .name = "ldo4", .driver_data = (void *)LP8725_ID_LDO4, }, | |
812 | { .name = "ldo5", .driver_data = (void *)LP8725_ID_LDO5, }, | |
813 | { .name = "lilo1", .driver_data = (void *)LP8725_ID_LILO1, }, | |
814 | { .name = "lilo2", .driver_data = (void *)LP8725_ID_LILO2, }, | |
815 | { .name = "buck1", .driver_data = (void *)LP8725_ID_BUCK1, }, | |
816 | { .name = "buck2", .driver_data = (void *)LP8725_ID_BUCK2, }, | |
817 | }; | |
818 | ||
819 | static struct lp872x_platform_data | |
820 | *lp872x_populate_pdata_from_dt(struct device *dev, enum lp872x_id which) | |
821 | { | |
822 | struct device_node *np = dev->of_node; | |
823 | struct lp872x_platform_data *pdata; | |
824 | struct of_regulator_match *match; | |
00fd6e61 KM |
825 | int num_matches; |
826 | int count; | |
827 | int i; | |
828 | u8 dvs_state; | |
829 | ||
830 | pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); | |
831 | if (!pdata) | |
804486b1 | 832 | return ERR_PTR(-ENOMEM); |
00fd6e61 KM |
833 | |
834 | of_property_read_u8(np, "ti,general-config", &pdata->general_config); | |
5bd73a16 | 835 | pdata->update_config = of_property_read_bool(np, "ti,update-config"); |
00fd6e61 KM |
836 | |
837 | pdata->dvs = devm_kzalloc(dev, sizeof(struct lp872x_dvs), GFP_KERNEL); | |
838 | if (!pdata->dvs) | |
804486b1 | 839 | return ERR_PTR(-ENOMEM); |
00fd6e61 | 840 | |
00fd6e61 KM |
841 | of_property_read_u8(np, "ti,dvs-vsel", (u8 *)&pdata->dvs->vsel); |
842 | of_property_read_u8(np, "ti,dvs-state", &dvs_state); | |
061514db | 843 | pdata->dvs->init_state = dvs_state ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW; |
00fd6e61 KM |
844 | |
845 | if (of_get_child_count(np) == 0) | |
846 | goto out; | |
847 | ||
848 | switch (which) { | |
849 | case LP8720: | |
850 | match = lp8720_matches; | |
851 | num_matches = ARRAY_SIZE(lp8720_matches); | |
852 | break; | |
853 | case LP8725: | |
854 | match = lp8725_matches; | |
855 | num_matches = ARRAY_SIZE(lp8725_matches); | |
856 | break; | |
857 | default: | |
858 | goto out; | |
859 | } | |
860 | ||
861 | count = of_regulator_match(dev, np, match, num_matches); | |
862 | if (count <= 0) | |
863 | goto out; | |
864 | ||
865 | for (i = 0; i < num_matches; i++) { | |
37a6f43d | 866 | pdata->regulator_data[i].id = |
c4189205 | 867 | (uintptr_t)match[i].driver_data; |
00fd6e61 | 868 | pdata->regulator_data[i].init_data = match[i].init_data; |
00fd6e61 KM |
869 | } |
870 | out: | |
871 | return pdata; | |
872 | } | |
873 | #else | |
874 | static struct lp872x_platform_data | |
875 | *lp872x_populate_pdata_from_dt(struct device *dev, enum lp872x_id which) | |
876 | { | |
877 | return NULL; | |
878 | } | |
879 | #endif | |
880 | ||
87feccb3 | 881 | static int lp872x_probe(struct i2c_client *cl) |
af8b5fc3 | 882 | { |
87feccb3 | 883 | const struct i2c_device_id *id = i2c_client_get_device_id(cl); |
af8b5fc3 | 884 | struct lp872x *lp; |
d9ffae15 | 885 | struct lp872x_platform_data *pdata; |
8538c407 | 886 | int ret; |
390d828f | 887 | static const int lp872x_num_regulators[] = { |
af8b5fc3 KM |
888 | [LP8720] = LP8720_NUM_REGULATORS, |
889 | [LP8725] = LP8725_NUM_REGULATORS, | |
890 | }; | |
891 | ||
804486b1 | 892 | if (cl->dev.of_node) { |
d9ffae15 | 893 | pdata = lp872x_populate_pdata_from_dt(&cl->dev, |
00fd6e61 | 894 | (enum lp872x_id)id->driver_data); |
804486b1 MK |
895 | if (IS_ERR(pdata)) |
896 | return PTR_ERR(pdata); | |
897 | } else { | |
d9ffae15 | 898 | pdata = dev_get_platdata(&cl->dev); |
804486b1 | 899 | } |
00fd6e61 | 900 | |
af8b5fc3 KM |
901 | lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL); |
902 | if (!lp) | |
8538c407 | 903 | return -ENOMEM; |
af8b5fc3 | 904 | |
8538c407 | 905 | lp->num_regulators = lp872x_num_regulators[id->driver_data]; |
af8b5fc3 KM |
906 | |
907 | lp->regmap = devm_regmap_init_i2c(cl, &lp872x_regmap_config); | |
908 | if (IS_ERR(lp->regmap)) { | |
909 | ret = PTR_ERR(lp->regmap); | |
910 | dev_err(&cl->dev, "regmap init i2c err: %d\n", ret); | |
8538c407 | 911 | return ret; |
af8b5fc3 KM |
912 | } |
913 | ||
914 | lp->dev = &cl->dev; | |
d9ffae15 | 915 | lp->pdata = pdata; |
af8b5fc3 | 916 | lp->chipid = id->driver_data; |
af8b5fc3 KM |
917 | i2c_set_clientdata(cl, lp); |
918 | ||
7e6213f4 PK |
919 | ret = lp872x_hw_enable(lp); |
920 | if (ret) | |
921 | return ret; | |
922 | ||
af8b5fc3 KM |
923 | ret = lp872x_config(lp); |
924 | if (ret) | |
8538c407 | 925 | return ret; |
af8b5fc3 KM |
926 | |
927 | return lp872x_regulator_register(lp); | |
af8b5fc3 KM |
928 | } |
929 | ||
70b26bb5 | 930 | static const struct of_device_id lp872x_dt_ids[] __maybe_unused = { |
00fd6e61 KM |
931 | { .compatible = "ti,lp8720", }, |
932 | { .compatible = "ti,lp8725", }, | |
933 | { } | |
934 | }; | |
935 | MODULE_DEVICE_TABLE(of, lp872x_dt_ids); | |
936 | ||
af8b5fc3 KM |
937 | static const struct i2c_device_id lp872x_ids[] = { |
938 | {"lp8720", LP8720}, | |
939 | {"lp8725", LP8725}, | |
940 | { } | |
941 | }; | |
942 | MODULE_DEVICE_TABLE(i2c, lp872x_ids); | |
943 | ||
944 | static struct i2c_driver lp872x_driver = { | |
945 | .driver = { | |
946 | .name = "lp872x", | |
259b93b2 | 947 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
00fd6e61 | 948 | .of_match_table = of_match_ptr(lp872x_dt_ids), |
af8b5fc3 | 949 | }, |
964e1865 | 950 | .probe = lp872x_probe, |
af8b5fc3 KM |
951 | .id_table = lp872x_ids, |
952 | }; | |
953 | ||
954 | module_i2c_driver(lp872x_driver); | |
955 | ||
956 | MODULE_DESCRIPTION("TI/National Semiconductor LP872x PMU Regulator Driver"); | |
957 | MODULE_AUTHOR("Milo Kim"); | |
958 | MODULE_LICENSE("GPL"); |