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1 | /* |
2 | * tps65023-regulator.c | |
3 | * | |
4 | * Supports TPS65023 Regulator | |
5 | * | |
6 | * Copyright (C) 2009 Texas Instrument Incorporated - http://www.ti.com/ | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation version 2. | |
11 | * | |
12 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, | |
13 | * whether express or implied; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | */ | |
17 | ||
18 | #include <linux/kernel.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/err.h> | |
22 | #include <linux/platform_device.h> | |
23 | #include <linux/regulator/driver.h> | |
24 | #include <linux/regulator/machine.h> | |
25 | #include <linux/i2c.h> | |
26 | #include <linux/delay.h> | |
27 | ||
28 | /* Register definitions */ | |
29 | #define TPS65023_REG_VERSION 0 | |
30 | #define TPS65023_REG_PGOODZ 1 | |
31 | #define TPS65023_REG_MASK 2 | |
32 | #define TPS65023_REG_REG_CTRL 3 | |
33 | #define TPS65023_REG_CON_CTRL 4 | |
34 | #define TPS65023_REG_CON_CTRL2 5 | |
35 | #define TPS65023_REG_DEF_CORE 6 | |
36 | #define TPS65023_REG_DEFSLEW 7 | |
37 | #define TPS65023_REG_LDO_CTRL 8 | |
38 | ||
39 | /* PGOODZ bitfields */ | |
40 | #define TPS65023_PGOODZ_PWRFAILZ BIT(7) | |
41 | #define TPS65023_PGOODZ_LOWBATTZ BIT(6) | |
42 | #define TPS65023_PGOODZ_VDCDC1 BIT(5) | |
43 | #define TPS65023_PGOODZ_VDCDC2 BIT(4) | |
44 | #define TPS65023_PGOODZ_VDCDC3 BIT(3) | |
45 | #define TPS65023_PGOODZ_LDO2 BIT(2) | |
46 | #define TPS65023_PGOODZ_LDO1 BIT(1) | |
47 | ||
48 | /* MASK bitfields */ | |
49 | #define TPS65023_MASK_PWRFAILZ BIT(7) | |
50 | #define TPS65023_MASK_LOWBATTZ BIT(6) | |
51 | #define TPS65023_MASK_VDCDC1 BIT(5) | |
52 | #define TPS65023_MASK_VDCDC2 BIT(4) | |
53 | #define TPS65023_MASK_VDCDC3 BIT(3) | |
54 | #define TPS65023_MASK_LDO2 BIT(2) | |
55 | #define TPS65023_MASK_LDO1 BIT(1) | |
56 | ||
57 | /* REG_CTRL bitfields */ | |
58 | #define TPS65023_REG_CTRL_VDCDC1_EN BIT(5) | |
59 | #define TPS65023_REG_CTRL_VDCDC2_EN BIT(4) | |
60 | #define TPS65023_REG_CTRL_VDCDC3_EN BIT(3) | |
61 | #define TPS65023_REG_CTRL_LDO2_EN BIT(2) | |
62 | #define TPS65023_REG_CTRL_LDO1_EN BIT(1) | |
63 | ||
64 | /* LDO_CTRL bitfields */ | |
65 | #define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4) | |
66 | #define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0xF0 >> ((ldo_id)*4)) | |
67 | ||
68 | /* Number of step-down converters available */ | |
69 | #define TPS65023_NUM_DCDC 3 | |
70 | /* Number of LDO voltage regulators available */ | |
71 | #define TPS65023_NUM_LDO 2 | |
72 | /* Number of total regulators available */ | |
73 | #define TPS65023_NUM_REGULATOR (TPS65023_NUM_DCDC + TPS65023_NUM_LDO) | |
74 | ||
75 | /* DCDCs */ | |
76 | #define TPS65023_DCDC_1 0 | |
77 | #define TPS65023_DCDC_2 1 | |
78 | #define TPS65023_DCDC_3 2 | |
79 | /* LDOs */ | |
80 | #define TPS65023_LDO_1 3 | |
81 | #define TPS65023_LDO_2 4 | |
82 | ||
83 | #define TPS65023_MAX_REG_ID TPS65023_LDO_2 | |
84 | ||
85 | /* Supported voltage values for regulators */ | |
86 | static const u16 VDCDC1_VSEL_table[] = { | |
87 | 800, 825, 850, 875, | |
88 | 900, 925, 950, 975, | |
89 | 1000, 1025, 1050, 1075, | |
90 | 1100, 1125, 1150, 1175, | |
91 | 1200, 1225, 1250, 1275, | |
92 | 1300, 1325, 1350, 1375, | |
93 | 1400, 1425, 1450, 1475, | |
94 | 1500, 1525, 1550, 1600, | |
95 | }; | |
96 | ||
97 | static const u16 LDO1_VSEL_table[] = { | |
98 | 1000, 1100, 1300, 1800, | |
99 | 2200, 2600, 2800, 3150, | |
100 | }; | |
101 | ||
102 | static const u16 LDO2_VSEL_table[] = { | |
103 | 1050, 1200, 1300, 1800, | |
104 | 2500, 2800, 3000, 3300, | |
105 | }; | |
106 | ||
107 | static unsigned int num_voltages[] = {ARRAY_SIZE(VDCDC1_VSEL_table), | |
108 | 0, 0, ARRAY_SIZE(LDO1_VSEL_table), | |
109 | ARRAY_SIZE(LDO2_VSEL_table)}; | |
110 | ||
111 | /* Regulator specific details */ | |
112 | struct tps_info { | |
113 | const char *name; | |
114 | unsigned min_uV; | |
115 | unsigned max_uV; | |
116 | bool fixed; | |
117 | u8 table_len; | |
118 | const u16 *table; | |
119 | }; | |
120 | ||
121 | /* PMIC details */ | |
122 | struct tps_pmic { | |
123 | struct regulator_desc desc[TPS65023_NUM_REGULATOR]; | |
124 | struct i2c_client *client; | |
125 | struct regulator_dev *rdev[TPS65023_NUM_REGULATOR]; | |
126 | const struct tps_info *info[TPS65023_NUM_REGULATOR]; | |
127 | struct mutex io_lock; | |
128 | }; | |
129 | ||
130 | static inline int tps_65023_read(struct tps_pmic *tps, u8 reg) | |
131 | { | |
132 | return i2c_smbus_read_byte_data(tps->client, reg); | |
133 | } | |
134 | ||
135 | static inline int tps_65023_write(struct tps_pmic *tps, u8 reg, u8 val) | |
136 | { | |
137 | return i2c_smbus_write_byte_data(tps->client, reg, val); | |
138 | } | |
139 | ||
140 | static int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask) | |
141 | { | |
142 | int err, data; | |
143 | ||
144 | mutex_lock(&tps->io_lock); | |
145 | ||
146 | data = tps_65023_read(tps, reg); | |
147 | if (data < 0) { | |
148 | dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); | |
149 | err = data; | |
150 | goto out; | |
151 | } | |
152 | ||
153 | data |= mask; | |
154 | err = tps_65023_write(tps, reg, data); | |
155 | if (err) | |
156 | dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); | |
157 | ||
158 | out: | |
159 | mutex_unlock(&tps->io_lock); | |
160 | return err; | |
161 | } | |
162 | ||
163 | static int tps_65023_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask) | |
164 | { | |
165 | int err, data; | |
166 | ||
167 | mutex_lock(&tps->io_lock); | |
168 | ||
169 | data = tps_65023_read(tps, reg); | |
170 | if (data < 0) { | |
171 | dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); | |
172 | err = data; | |
173 | goto out; | |
174 | } | |
175 | ||
176 | data &= ~mask; | |
177 | ||
178 | err = tps_65023_write(tps, reg, data); | |
179 | if (err) | |
180 | dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); | |
181 | ||
182 | out: | |
183 | mutex_unlock(&tps->io_lock); | |
184 | return err; | |
185 | ||
186 | } | |
187 | ||
188 | static int tps_65023_reg_read(struct tps_pmic *tps, u8 reg) | |
189 | { | |
190 | int data; | |
191 | ||
192 | mutex_lock(&tps->io_lock); | |
193 | ||
194 | data = tps_65023_read(tps, reg); | |
195 | if (data < 0) | |
196 | dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); | |
197 | ||
198 | mutex_unlock(&tps->io_lock); | |
199 | return data; | |
200 | } | |
201 | ||
202 | static int tps_65023_reg_write(struct tps_pmic *tps, u8 reg, u8 val) | |
203 | { | |
204 | int err; | |
205 | ||
206 | mutex_lock(&tps->io_lock); | |
207 | ||
208 | err = tps_65023_write(tps, reg, val); | |
209 | if (err < 0) | |
210 | dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); | |
211 | ||
212 | mutex_unlock(&tps->io_lock); | |
213 | return err; | |
214 | } | |
215 | ||
216 | static int tps65023_dcdc_is_enabled(struct regulator_dev *dev) | |
217 | { | |
218 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
219 | int data, dcdc = rdev_get_id(dev); | |
220 | u8 shift; | |
221 | ||
222 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
223 | return -EINVAL; | |
224 | ||
225 | shift = TPS65023_NUM_REGULATOR - dcdc; | |
226 | data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL); | |
227 | ||
228 | if (data < 0) | |
229 | return data; | |
230 | else | |
231 | return (data & 1<<shift) ? 1 : 0; | |
232 | } | |
233 | ||
234 | static int tps65023_ldo_is_enabled(struct regulator_dev *dev) | |
235 | { | |
236 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
237 | int data, ldo = rdev_get_id(dev); | |
238 | u8 shift; | |
239 | ||
240 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
241 | return -EINVAL; | |
242 | ||
243 | shift = (ldo == TPS65023_LDO_1 ? 1 : 2); | |
244 | data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL); | |
245 | ||
246 | if (data < 0) | |
247 | return data; | |
248 | else | |
249 | return (data & 1<<shift) ? 1 : 0; | |
250 | } | |
251 | ||
252 | static int tps65023_dcdc_enable(struct regulator_dev *dev) | |
253 | { | |
254 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
255 | int dcdc = rdev_get_id(dev); | |
256 | u8 shift; | |
257 | ||
258 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
259 | return -EINVAL; | |
260 | ||
261 | shift = TPS65023_NUM_REGULATOR - dcdc; | |
262 | return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
263 | } | |
264 | ||
265 | static int tps65023_dcdc_disable(struct regulator_dev *dev) | |
266 | { | |
267 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
268 | int dcdc = rdev_get_id(dev); | |
269 | u8 shift; | |
270 | ||
271 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
272 | return -EINVAL; | |
273 | ||
274 | shift = TPS65023_NUM_REGULATOR - dcdc; | |
275 | return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
276 | } | |
277 | ||
278 | static int tps65023_ldo_enable(struct regulator_dev *dev) | |
279 | { | |
280 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
281 | int ldo = rdev_get_id(dev); | |
282 | u8 shift; | |
283 | ||
284 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
285 | return -EINVAL; | |
286 | ||
287 | shift = (ldo == TPS65023_LDO_1 ? 1 : 2); | |
288 | return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
289 | } | |
290 | ||
291 | static int tps65023_ldo_disable(struct regulator_dev *dev) | |
292 | { | |
293 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
294 | int ldo = rdev_get_id(dev); | |
295 | u8 shift; | |
296 | ||
297 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
298 | return -EINVAL; | |
299 | ||
300 | shift = (ldo == TPS65023_LDO_1 ? 1 : 2); | |
301 | return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
302 | } | |
303 | ||
304 | static int tps65023_dcdc_get_voltage(struct regulator_dev *dev) | |
305 | { | |
306 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
307 | int data, dcdc = rdev_get_id(dev); | |
308 | ||
309 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
310 | return -EINVAL; | |
311 | ||
312 | if (dcdc == TPS65023_DCDC_1) { | |
313 | data = tps_65023_reg_read(tps, TPS65023_REG_DEF_CORE); | |
314 | if (data < 0) | |
315 | return data; | |
316 | data &= (tps->info[dcdc]->table_len - 1); | |
317 | return tps->info[dcdc]->table[data] * 1000; | |
318 | } else | |
319 | return tps->info[dcdc]->min_uV; | |
320 | } | |
321 | ||
322 | static int tps65023_dcdc_set_voltage(struct regulator_dev *dev, | |
323 | int min_uV, int max_uV) | |
324 | { | |
325 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
326 | int dcdc = rdev_get_id(dev); | |
327 | int vsel; | |
328 | ||
329 | if (dcdc != TPS65023_DCDC_1) | |
330 | return -EINVAL; | |
331 | ||
332 | if (min_uV < tps->info[dcdc]->min_uV | |
333 | || min_uV > tps->info[dcdc]->max_uV) | |
334 | return -EINVAL; | |
335 | if (max_uV < tps->info[dcdc]->min_uV | |
336 | || max_uV > tps->info[dcdc]->max_uV) | |
337 | return -EINVAL; | |
338 | ||
339 | for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) { | |
340 | int mV = tps->info[dcdc]->table[vsel]; | |
341 | int uV = mV * 1000; | |
342 | ||
343 | /* Break at the first in-range value */ | |
344 | if (min_uV <= uV && uV <= max_uV) | |
345 | break; | |
346 | } | |
347 | ||
348 | /* write to the register in case we found a match */ | |
349 | if (vsel == tps->info[dcdc]->table_len) | |
350 | return -EINVAL; | |
351 | else | |
352 | return tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel); | |
353 | } | |
354 | ||
355 | static int tps65023_ldo_get_voltage(struct regulator_dev *dev) | |
356 | { | |
357 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
358 | int data, ldo = rdev_get_id(dev); | |
359 | ||
360 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
361 | return -EINVAL; | |
362 | ||
363 | data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL); | |
364 | if (data < 0) | |
365 | return data; | |
366 | ||
367 | data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)); | |
368 | data &= (tps->info[ldo]->table_len - 1); | |
369 | return tps->info[ldo]->table[data] * 1000; | |
370 | } | |
371 | ||
372 | static int tps65023_ldo_set_voltage(struct regulator_dev *dev, | |
373 | int min_uV, int max_uV) | |
374 | { | |
375 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
376 | int data, vsel, ldo = rdev_get_id(dev); | |
377 | ||
378 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
379 | return -EINVAL; | |
380 | ||
381 | if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV) | |
382 | return -EINVAL; | |
383 | if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV) | |
384 | return -EINVAL; | |
385 | ||
386 | for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) { | |
387 | int mV = tps->info[ldo]->table[vsel]; | |
388 | int uV = mV * 1000; | |
389 | ||
390 | /* Break at the first in-range value */ | |
391 | if (min_uV <= uV && uV <= max_uV) | |
392 | break; | |
393 | } | |
394 | ||
395 | if (vsel == tps->info[ldo]->table_len) | |
396 | return -EINVAL; | |
397 | ||
398 | data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL); | |
399 | if (data < 0) | |
400 | return data; | |
401 | ||
402 | data &= TPS65023_LDO_CTRL_LDOx_MASK(ldo - TPS65023_LDO_1); | |
403 | data |= (vsel << (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1))); | |
404 | return tps_65023_reg_write(tps, TPS65023_REG_LDO_CTRL, data); | |
405 | } | |
406 | ||
407 | static int tps65023_dcdc_list_voltage(struct regulator_dev *dev, | |
408 | unsigned selector) | |
409 | { | |
410 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
411 | int dcdc = rdev_get_id(dev); | |
412 | ||
413 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
414 | return -EINVAL; | |
415 | ||
416 | if (dcdc == TPS65023_DCDC_1) { | |
417 | if (selector >= tps->info[dcdc]->table_len) | |
418 | return -EINVAL; | |
419 | else | |
420 | return tps->info[dcdc]->table[selector] * 1000; | |
421 | } else | |
422 | return tps->info[dcdc]->min_uV; | |
423 | } | |
424 | ||
425 | static int tps65023_ldo_list_voltage(struct regulator_dev *dev, | |
426 | unsigned selector) | |
427 | { | |
428 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
429 | int ldo = rdev_get_id(dev); | |
430 | ||
431 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
432 | return -EINVAL; | |
433 | ||
434 | if (selector >= tps->info[ldo]->table_len) | |
435 | return -EINVAL; | |
436 | else | |
437 | return tps->info[ldo]->table[selector] * 1000; | |
438 | } | |
439 | ||
440 | /* Operations permitted on VDCDCx */ | |
441 | static struct regulator_ops tps65023_dcdc_ops = { | |
442 | .is_enabled = tps65023_dcdc_is_enabled, | |
443 | .enable = tps65023_dcdc_enable, | |
444 | .disable = tps65023_dcdc_disable, | |
445 | .get_voltage = tps65023_dcdc_get_voltage, | |
446 | .set_voltage = tps65023_dcdc_set_voltage, | |
447 | .list_voltage = tps65023_dcdc_list_voltage, | |
448 | }; | |
449 | ||
450 | /* Operations permitted on LDOx */ | |
451 | static struct regulator_ops tps65023_ldo_ops = { | |
452 | .is_enabled = tps65023_ldo_is_enabled, | |
453 | .enable = tps65023_ldo_enable, | |
454 | .disable = tps65023_ldo_disable, | |
455 | .get_voltage = tps65023_ldo_get_voltage, | |
456 | .set_voltage = tps65023_ldo_set_voltage, | |
457 | .list_voltage = tps65023_ldo_list_voltage, | |
458 | }; | |
459 | ||
460 | static | |
461 | int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id) | |
462 | { | |
463 | static int desc_id; | |
464 | const struct tps_info *info = (void *)id->driver_data; | |
465 | struct regulator_init_data *init_data; | |
466 | struct regulator_dev *rdev; | |
467 | struct tps_pmic *tps; | |
468 | int i; | |
469 | ||
470 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
471 | return -EIO; | |
472 | ||
473 | /** | |
474 | * init_data points to array of regulator_init structures | |
475 | * coming from the board-evm file. | |
476 | */ | |
477 | init_data = client->dev.platform_data; | |
478 | ||
479 | if (!init_data) | |
480 | return -EIO; | |
481 | ||
482 | tps = kzalloc(sizeof(*tps), GFP_KERNEL); | |
483 | if (!tps) | |
484 | return -ENOMEM; | |
485 | ||
486 | mutex_init(&tps->io_lock); | |
487 | ||
488 | /* common for all regulators */ | |
489 | tps->client = client; | |
490 | ||
491 | for (i = 0; i < TPS65023_NUM_REGULATOR; i++, info++, init_data++) { | |
492 | /* Store regulator specific information */ | |
493 | tps->info[i] = info; | |
494 | ||
495 | tps->desc[i].name = info->name; | |
496 | tps->desc[i].id = desc_id++; | |
497 | tps->desc[i].n_voltages = num_voltages[i]; | |
498 | tps->desc[i].ops = (i > TPS65023_DCDC_3 ? | |
499 | &tps65023_ldo_ops : &tps65023_dcdc_ops); | |
500 | tps->desc[i].type = REGULATOR_VOLTAGE; | |
501 | tps->desc[i].owner = THIS_MODULE; | |
502 | ||
503 | /* Register the regulators */ | |
504 | rdev = regulator_register(&tps->desc[i], &client->dev, | |
505 | init_data, tps); | |
506 | if (IS_ERR(rdev)) { | |
507 | dev_err(&client->dev, "failed to register %s\n", | |
508 | id->name); | |
509 | ||
510 | /* Unregister */ | |
511 | while (i) | |
512 | regulator_unregister(tps->rdev[--i]); | |
513 | ||
514 | tps->client = NULL; | |
515 | ||
516 | /* clear the client data in i2c */ | |
517 | i2c_set_clientdata(client, NULL); | |
518 | kfree(tps); | |
519 | return PTR_ERR(rdev); | |
520 | } | |
521 | ||
522 | /* Save regulator for cleanup */ | |
523 | tps->rdev[i] = rdev; | |
524 | } | |
525 | ||
526 | i2c_set_clientdata(client, tps); | |
527 | ||
528 | return 0; | |
529 | } | |
530 | ||
531 | /** | |
532 | * tps_65023_remove - TPS65023 driver i2c remove handler | |
533 | * @client: i2c driver client device structure | |
534 | * | |
535 | * Unregister TPS driver as an i2c client device driver | |
536 | */ | |
537 | static int __devexit tps_65023_remove(struct i2c_client *client) | |
538 | { | |
539 | struct tps_pmic *tps = i2c_get_clientdata(client); | |
540 | int i; | |
541 | ||
542 | for (i = 0; i < TPS65023_NUM_REGULATOR; i++) | |
543 | regulator_unregister(tps->rdev[i]); | |
544 | ||
545 | tps->client = NULL; | |
546 | ||
547 | /* clear the client data in i2c */ | |
548 | i2c_set_clientdata(client, NULL); | |
549 | kfree(tps); | |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
554 | static const struct tps_info tps65023_regs[] = { | |
555 | { | |
556 | .name = "VDCDC1", | |
557 | .min_uV = 800000, | |
558 | .max_uV = 1600000, | |
559 | .table_len = ARRAY_SIZE(VDCDC1_VSEL_table), | |
560 | .table = VDCDC1_VSEL_table, | |
561 | }, | |
562 | { | |
563 | .name = "VDCDC2", | |
564 | .min_uV = 3300000, | |
565 | .max_uV = 3300000, | |
566 | .fixed = 1, | |
567 | }, | |
568 | { | |
569 | .name = "VDCDC3", | |
570 | .min_uV = 1800000, | |
571 | .max_uV = 1800000, | |
572 | .fixed = 1, | |
573 | }, | |
574 | { | |
575 | .name = "LDO1", | |
576 | .min_uV = 1000000, | |
577 | .max_uV = 3150000, | |
578 | .table_len = ARRAY_SIZE(LDO1_VSEL_table), | |
579 | .table = LDO1_VSEL_table, | |
580 | }, | |
581 | { | |
582 | .name = "LDO2", | |
583 | .min_uV = 1050000, | |
584 | .max_uV = 3300000, | |
585 | .table_len = ARRAY_SIZE(LDO2_VSEL_table), | |
586 | .table = LDO2_VSEL_table, | |
587 | }, | |
588 | }; | |
589 | ||
9e108d33 LG |
590 | static const struct i2c_device_id tps_65023_id[] = { |
591 | {.name = "tps65023", | |
592 | .driver_data = (unsigned long) tps65023_regs,}, | |
593 | { }, | |
30e6599d AA |
594 | }; |
595 | ||
596 | MODULE_DEVICE_TABLE(i2c, tps_65023_id); | |
597 | ||
598 | static struct i2c_driver tps_65023_i2c_driver = { | |
599 | .driver = { | |
600 | .name = "tps65023", | |
601 | .owner = THIS_MODULE, | |
602 | }, | |
603 | .probe = tps_65023_probe, | |
604 | .remove = __devexit_p(tps_65023_remove), | |
9e108d33 | 605 | .id_table = tps_65023_id, |
30e6599d AA |
606 | }; |
607 | ||
608 | /** | |
609 | * tps_65023_init | |
610 | * | |
611 | * Module init function | |
612 | */ | |
613 | static int __init tps_65023_init(void) | |
614 | { | |
615 | return i2c_add_driver(&tps_65023_i2c_driver); | |
616 | } | |
617 | subsys_initcall(tps_65023_init); | |
618 | ||
619 | /** | |
620 | * tps_65023_cleanup | |
621 | * | |
622 | * Module exit function | |
623 | */ | |
624 | static void __exit tps_65023_cleanup(void) | |
625 | { | |
626 | i2c_del_driver(&tps_65023_i2c_driver); | |
627 | } | |
628 | module_exit(tps_65023_cleanup); | |
629 | ||
630 | MODULE_AUTHOR("Texas Instruments"); | |
631 | MODULE_DESCRIPTION("TPS65023 voltage regulator driver"); | |
9e108d33 | 632 | MODULE_LICENSE("GPL v2"); |