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30e6599d AA |
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> | |
5a0e3ad6 | 27 | #include <linux/slab.h> |
30e6599d AA |
28 | |
29 | /* Register definitions */ | |
30 | #define TPS65023_REG_VERSION 0 | |
31 | #define TPS65023_REG_PGOODZ 1 | |
32 | #define TPS65023_REG_MASK 2 | |
33 | #define TPS65023_REG_REG_CTRL 3 | |
34 | #define TPS65023_REG_CON_CTRL 4 | |
35 | #define TPS65023_REG_CON_CTRL2 5 | |
36 | #define TPS65023_REG_DEF_CORE 6 | |
37 | #define TPS65023_REG_DEFSLEW 7 | |
38 | #define TPS65023_REG_LDO_CTRL 8 | |
39 | ||
40 | /* PGOODZ bitfields */ | |
41 | #define TPS65023_PGOODZ_PWRFAILZ BIT(7) | |
42 | #define TPS65023_PGOODZ_LOWBATTZ BIT(6) | |
43 | #define TPS65023_PGOODZ_VDCDC1 BIT(5) | |
44 | #define TPS65023_PGOODZ_VDCDC2 BIT(4) | |
45 | #define TPS65023_PGOODZ_VDCDC3 BIT(3) | |
46 | #define TPS65023_PGOODZ_LDO2 BIT(2) | |
47 | #define TPS65023_PGOODZ_LDO1 BIT(1) | |
48 | ||
49 | /* MASK bitfields */ | |
50 | #define TPS65023_MASK_PWRFAILZ BIT(7) | |
51 | #define TPS65023_MASK_LOWBATTZ BIT(6) | |
52 | #define TPS65023_MASK_VDCDC1 BIT(5) | |
53 | #define TPS65023_MASK_VDCDC2 BIT(4) | |
54 | #define TPS65023_MASK_VDCDC3 BIT(3) | |
55 | #define TPS65023_MASK_LDO2 BIT(2) | |
56 | #define TPS65023_MASK_LDO1 BIT(1) | |
57 | ||
58 | /* REG_CTRL bitfields */ | |
59 | #define TPS65023_REG_CTRL_VDCDC1_EN BIT(5) | |
60 | #define TPS65023_REG_CTRL_VDCDC2_EN BIT(4) | |
61 | #define TPS65023_REG_CTRL_VDCDC3_EN BIT(3) | |
62 | #define TPS65023_REG_CTRL_LDO2_EN BIT(2) | |
63 | #define TPS65023_REG_CTRL_LDO1_EN BIT(1) | |
64 | ||
65 | /* LDO_CTRL bitfields */ | |
66 | #define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4) | |
67 | #define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0xF0 >> ((ldo_id)*4)) | |
68 | ||
69 | /* Number of step-down converters available */ | |
70 | #define TPS65023_NUM_DCDC 3 | |
71 | /* Number of LDO voltage regulators available */ | |
72 | #define TPS65023_NUM_LDO 2 | |
73 | /* Number of total regulators available */ | |
74 | #define TPS65023_NUM_REGULATOR (TPS65023_NUM_DCDC + TPS65023_NUM_LDO) | |
75 | ||
76 | /* DCDCs */ | |
77 | #define TPS65023_DCDC_1 0 | |
78 | #define TPS65023_DCDC_2 1 | |
79 | #define TPS65023_DCDC_3 2 | |
80 | /* LDOs */ | |
81 | #define TPS65023_LDO_1 3 | |
82 | #define TPS65023_LDO_2 4 | |
83 | ||
84 | #define TPS65023_MAX_REG_ID TPS65023_LDO_2 | |
85 | ||
86 | /* Supported voltage values for regulators */ | |
87 | static const u16 VDCDC1_VSEL_table[] = { | |
88 | 800, 825, 850, 875, | |
89 | 900, 925, 950, 975, | |
90 | 1000, 1025, 1050, 1075, | |
91 | 1100, 1125, 1150, 1175, | |
92 | 1200, 1225, 1250, 1275, | |
93 | 1300, 1325, 1350, 1375, | |
94 | 1400, 1425, 1450, 1475, | |
95 | 1500, 1525, 1550, 1600, | |
96 | }; | |
97 | ||
98 | static const u16 LDO1_VSEL_table[] = { | |
99 | 1000, 1100, 1300, 1800, | |
100 | 2200, 2600, 2800, 3150, | |
101 | }; | |
102 | ||
103 | static const u16 LDO2_VSEL_table[] = { | |
104 | 1050, 1200, 1300, 1800, | |
105 | 2500, 2800, 3000, 3300, | |
106 | }; | |
107 | ||
108 | static unsigned int num_voltages[] = {ARRAY_SIZE(VDCDC1_VSEL_table), | |
109 | 0, 0, ARRAY_SIZE(LDO1_VSEL_table), | |
110 | ARRAY_SIZE(LDO2_VSEL_table)}; | |
111 | ||
112 | /* Regulator specific details */ | |
113 | struct tps_info { | |
114 | const char *name; | |
115 | unsigned min_uV; | |
116 | unsigned max_uV; | |
117 | bool fixed; | |
118 | u8 table_len; | |
119 | const u16 *table; | |
120 | }; | |
121 | ||
122 | /* PMIC details */ | |
123 | struct tps_pmic { | |
124 | struct regulator_desc desc[TPS65023_NUM_REGULATOR]; | |
125 | struct i2c_client *client; | |
126 | struct regulator_dev *rdev[TPS65023_NUM_REGULATOR]; | |
127 | const struct tps_info *info[TPS65023_NUM_REGULATOR]; | |
128 | struct mutex io_lock; | |
129 | }; | |
130 | ||
131 | static inline int tps_65023_read(struct tps_pmic *tps, u8 reg) | |
132 | { | |
133 | return i2c_smbus_read_byte_data(tps->client, reg); | |
134 | } | |
135 | ||
136 | static inline int tps_65023_write(struct tps_pmic *tps, u8 reg, u8 val) | |
137 | { | |
138 | return i2c_smbus_write_byte_data(tps->client, reg, val); | |
139 | } | |
140 | ||
141 | static int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask) | |
142 | { | |
143 | int err, data; | |
144 | ||
145 | mutex_lock(&tps->io_lock); | |
146 | ||
147 | data = tps_65023_read(tps, reg); | |
148 | if (data < 0) { | |
149 | dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); | |
150 | err = data; | |
151 | goto out; | |
152 | } | |
153 | ||
154 | data |= mask; | |
155 | err = tps_65023_write(tps, reg, data); | |
156 | if (err) | |
157 | dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); | |
158 | ||
159 | out: | |
160 | mutex_unlock(&tps->io_lock); | |
161 | return err; | |
162 | } | |
163 | ||
164 | static int tps_65023_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask) | |
165 | { | |
166 | int err, data; | |
167 | ||
168 | mutex_lock(&tps->io_lock); | |
169 | ||
170 | data = tps_65023_read(tps, reg); | |
171 | if (data < 0) { | |
172 | dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); | |
173 | err = data; | |
174 | goto out; | |
175 | } | |
176 | ||
177 | data &= ~mask; | |
178 | ||
179 | err = tps_65023_write(tps, reg, data); | |
180 | if (err) | |
181 | dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); | |
182 | ||
183 | out: | |
184 | mutex_unlock(&tps->io_lock); | |
185 | return err; | |
186 | ||
187 | } | |
188 | ||
189 | static int tps_65023_reg_read(struct tps_pmic *tps, u8 reg) | |
190 | { | |
191 | int data; | |
192 | ||
193 | mutex_lock(&tps->io_lock); | |
194 | ||
195 | data = tps_65023_read(tps, reg); | |
196 | if (data < 0) | |
197 | dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); | |
198 | ||
199 | mutex_unlock(&tps->io_lock); | |
200 | return data; | |
201 | } | |
202 | ||
203 | static int tps_65023_reg_write(struct tps_pmic *tps, u8 reg, u8 val) | |
204 | { | |
205 | int err; | |
206 | ||
207 | mutex_lock(&tps->io_lock); | |
208 | ||
209 | err = tps_65023_write(tps, reg, val); | |
210 | if (err < 0) | |
211 | dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); | |
212 | ||
213 | mutex_unlock(&tps->io_lock); | |
214 | return err; | |
215 | } | |
216 | ||
217 | static int tps65023_dcdc_is_enabled(struct regulator_dev *dev) | |
218 | { | |
219 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
220 | int data, dcdc = rdev_get_id(dev); | |
221 | u8 shift; | |
222 | ||
223 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
224 | return -EINVAL; | |
225 | ||
226 | shift = TPS65023_NUM_REGULATOR - dcdc; | |
227 | data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL); | |
228 | ||
229 | if (data < 0) | |
230 | return data; | |
231 | else | |
232 | return (data & 1<<shift) ? 1 : 0; | |
233 | } | |
234 | ||
235 | static int tps65023_ldo_is_enabled(struct regulator_dev *dev) | |
236 | { | |
237 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
238 | int data, ldo = rdev_get_id(dev); | |
239 | u8 shift; | |
240 | ||
241 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
242 | return -EINVAL; | |
243 | ||
244 | shift = (ldo == TPS65023_LDO_1 ? 1 : 2); | |
245 | data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL); | |
246 | ||
247 | if (data < 0) | |
248 | return data; | |
249 | else | |
250 | return (data & 1<<shift) ? 1 : 0; | |
251 | } | |
252 | ||
253 | static int tps65023_dcdc_enable(struct regulator_dev *dev) | |
254 | { | |
255 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
256 | int dcdc = rdev_get_id(dev); | |
257 | u8 shift; | |
258 | ||
259 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
260 | return -EINVAL; | |
261 | ||
262 | shift = TPS65023_NUM_REGULATOR - dcdc; | |
263 | return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
264 | } | |
265 | ||
266 | static int tps65023_dcdc_disable(struct regulator_dev *dev) | |
267 | { | |
268 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
269 | int dcdc = rdev_get_id(dev); | |
270 | u8 shift; | |
271 | ||
272 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
273 | return -EINVAL; | |
274 | ||
275 | shift = TPS65023_NUM_REGULATOR - dcdc; | |
276 | return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
277 | } | |
278 | ||
279 | static int tps65023_ldo_enable(struct regulator_dev *dev) | |
280 | { | |
281 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
282 | int ldo = rdev_get_id(dev); | |
283 | u8 shift; | |
284 | ||
285 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
286 | return -EINVAL; | |
287 | ||
288 | shift = (ldo == TPS65023_LDO_1 ? 1 : 2); | |
289 | return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
290 | } | |
291 | ||
292 | static int tps65023_ldo_disable(struct regulator_dev *dev) | |
293 | { | |
294 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
295 | int ldo = rdev_get_id(dev); | |
296 | u8 shift; | |
297 | ||
298 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
299 | return -EINVAL; | |
300 | ||
301 | shift = (ldo == TPS65023_LDO_1 ? 1 : 2); | |
302 | return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
303 | } | |
304 | ||
305 | static int tps65023_dcdc_get_voltage(struct regulator_dev *dev) | |
306 | { | |
307 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
308 | int data, dcdc = rdev_get_id(dev); | |
309 | ||
310 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
311 | return -EINVAL; | |
312 | ||
313 | if (dcdc == TPS65023_DCDC_1) { | |
314 | data = tps_65023_reg_read(tps, TPS65023_REG_DEF_CORE); | |
315 | if (data < 0) | |
316 | return data; | |
317 | data &= (tps->info[dcdc]->table_len - 1); | |
318 | return tps->info[dcdc]->table[data] * 1000; | |
319 | } else | |
320 | return tps->info[dcdc]->min_uV; | |
321 | } | |
322 | ||
323 | static int tps65023_dcdc_set_voltage(struct regulator_dev *dev, | |
324 | int min_uV, int max_uV) | |
325 | { | |
326 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
327 | int dcdc = rdev_get_id(dev); | |
328 | int vsel; | |
329 | ||
330 | if (dcdc != TPS65023_DCDC_1) | |
331 | return -EINVAL; | |
332 | ||
333 | if (min_uV < tps->info[dcdc]->min_uV | |
334 | || min_uV > tps->info[dcdc]->max_uV) | |
335 | return -EINVAL; | |
336 | if (max_uV < tps->info[dcdc]->min_uV | |
337 | || max_uV > tps->info[dcdc]->max_uV) | |
338 | return -EINVAL; | |
339 | ||
340 | for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) { | |
341 | int mV = tps->info[dcdc]->table[vsel]; | |
342 | int uV = mV * 1000; | |
343 | ||
344 | /* Break at the first in-range value */ | |
345 | if (min_uV <= uV && uV <= max_uV) | |
346 | break; | |
347 | } | |
348 | ||
349 | /* write to the register in case we found a match */ | |
350 | if (vsel == tps->info[dcdc]->table_len) | |
351 | return -EINVAL; | |
352 | else | |
353 | return tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel); | |
354 | } | |
355 | ||
356 | static int tps65023_ldo_get_voltage(struct regulator_dev *dev) | |
357 | { | |
358 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
359 | int data, ldo = rdev_get_id(dev); | |
360 | ||
361 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
362 | return -EINVAL; | |
363 | ||
364 | data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL); | |
365 | if (data < 0) | |
366 | return data; | |
367 | ||
368 | data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)); | |
369 | data &= (tps->info[ldo]->table_len - 1); | |
370 | return tps->info[ldo]->table[data] * 1000; | |
371 | } | |
372 | ||
373 | static int tps65023_ldo_set_voltage(struct regulator_dev *dev, | |
374 | int min_uV, int max_uV) | |
375 | { | |
376 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
377 | int data, vsel, ldo = rdev_get_id(dev); | |
378 | ||
379 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
380 | return -EINVAL; | |
381 | ||
382 | if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV) | |
383 | return -EINVAL; | |
384 | if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV) | |
385 | return -EINVAL; | |
386 | ||
387 | for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) { | |
388 | int mV = tps->info[ldo]->table[vsel]; | |
389 | int uV = mV * 1000; | |
390 | ||
391 | /* Break at the first in-range value */ | |
392 | if (min_uV <= uV && uV <= max_uV) | |
393 | break; | |
394 | } | |
395 | ||
396 | if (vsel == tps->info[ldo]->table_len) | |
397 | return -EINVAL; | |
398 | ||
399 | data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL); | |
400 | if (data < 0) | |
401 | return data; | |
402 | ||
403 | data &= TPS65023_LDO_CTRL_LDOx_MASK(ldo - TPS65023_LDO_1); | |
404 | data |= (vsel << (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1))); | |
405 | return tps_65023_reg_write(tps, TPS65023_REG_LDO_CTRL, data); | |
406 | } | |
407 | ||
408 | static int tps65023_dcdc_list_voltage(struct regulator_dev *dev, | |
409 | unsigned selector) | |
410 | { | |
411 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
412 | int dcdc = rdev_get_id(dev); | |
413 | ||
414 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
415 | return -EINVAL; | |
416 | ||
417 | if (dcdc == TPS65023_DCDC_1) { | |
418 | if (selector >= tps->info[dcdc]->table_len) | |
419 | return -EINVAL; | |
420 | else | |
421 | return tps->info[dcdc]->table[selector] * 1000; | |
422 | } else | |
423 | return tps->info[dcdc]->min_uV; | |
424 | } | |
425 | ||
426 | static int tps65023_ldo_list_voltage(struct regulator_dev *dev, | |
427 | unsigned selector) | |
428 | { | |
429 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
430 | int ldo = rdev_get_id(dev); | |
431 | ||
432 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
433 | return -EINVAL; | |
434 | ||
435 | if (selector >= tps->info[ldo]->table_len) | |
436 | return -EINVAL; | |
437 | else | |
438 | return tps->info[ldo]->table[selector] * 1000; | |
439 | } | |
440 | ||
441 | /* Operations permitted on VDCDCx */ | |
442 | static struct regulator_ops tps65023_dcdc_ops = { | |
443 | .is_enabled = tps65023_dcdc_is_enabled, | |
444 | .enable = tps65023_dcdc_enable, | |
445 | .disable = tps65023_dcdc_disable, | |
446 | .get_voltage = tps65023_dcdc_get_voltage, | |
447 | .set_voltage = tps65023_dcdc_set_voltage, | |
448 | .list_voltage = tps65023_dcdc_list_voltage, | |
449 | }; | |
450 | ||
451 | /* Operations permitted on LDOx */ | |
452 | static struct regulator_ops tps65023_ldo_ops = { | |
453 | .is_enabled = tps65023_ldo_is_enabled, | |
454 | .enable = tps65023_ldo_enable, | |
455 | .disable = tps65023_ldo_disable, | |
456 | .get_voltage = tps65023_ldo_get_voltage, | |
457 | .set_voltage = tps65023_ldo_set_voltage, | |
458 | .list_voltage = tps65023_ldo_list_voltage, | |
459 | }; | |
460 | ||
54d13ab1 DT |
461 | static int __devinit tps_65023_probe(struct i2c_client *client, |
462 | const struct i2c_device_id *id) | |
30e6599d AA |
463 | { |
464 | static int desc_id; | |
465 | const struct tps_info *info = (void *)id->driver_data; | |
466 | struct regulator_init_data *init_data; | |
467 | struct regulator_dev *rdev; | |
468 | struct tps_pmic *tps; | |
469 | int i; | |
54d13ab1 | 470 | int error; |
30e6599d AA |
471 | |
472 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
473 | return -EIO; | |
474 | ||
475 | /** | |
476 | * init_data points to array of regulator_init structures | |
477 | * coming from the board-evm file. | |
478 | */ | |
479 | init_data = client->dev.platform_data; | |
30e6599d AA |
480 | if (!init_data) |
481 | return -EIO; | |
482 | ||
483 | tps = kzalloc(sizeof(*tps), GFP_KERNEL); | |
484 | if (!tps) | |
485 | return -ENOMEM; | |
486 | ||
487 | mutex_init(&tps->io_lock); | |
488 | ||
489 | /* common for all regulators */ | |
490 | tps->client = client; | |
491 | ||
492 | for (i = 0; i < TPS65023_NUM_REGULATOR; i++, info++, init_data++) { | |
493 | /* Store regulator specific information */ | |
494 | tps->info[i] = info; | |
495 | ||
496 | tps->desc[i].name = info->name; | |
497 | tps->desc[i].id = desc_id++; | |
498 | tps->desc[i].n_voltages = num_voltages[i]; | |
499 | tps->desc[i].ops = (i > TPS65023_DCDC_3 ? | |
500 | &tps65023_ldo_ops : &tps65023_dcdc_ops); | |
501 | tps->desc[i].type = REGULATOR_VOLTAGE; | |
502 | tps->desc[i].owner = THIS_MODULE; | |
503 | ||
504 | /* Register the regulators */ | |
505 | rdev = regulator_register(&tps->desc[i], &client->dev, | |
54d13ab1 | 506 | init_data, tps); |
30e6599d AA |
507 | if (IS_ERR(rdev)) { |
508 | dev_err(&client->dev, "failed to register %s\n", | |
509 | id->name); | |
54d13ab1 DT |
510 | error = PTR_ERR(rdev); |
511 | goto fail; | |
30e6599d AA |
512 | } |
513 | ||
514 | /* Save regulator for cleanup */ | |
515 | tps->rdev[i] = rdev; | |
516 | } | |
517 | ||
518 | i2c_set_clientdata(client, tps); | |
519 | ||
520 | return 0; | |
54d13ab1 DT |
521 | |
522 | fail: | |
523 | while (--i >= 0) | |
524 | regulator_unregister(tps->rdev[i]); | |
525 | ||
526 | kfree(tps); | |
527 | return error; | |
30e6599d AA |
528 | } |
529 | ||
530 | /** | |
531 | * tps_65023_remove - TPS65023 driver i2c remove handler | |
532 | * @client: i2c driver client device structure | |
533 | * | |
534 | * Unregister TPS driver as an i2c client device driver | |
535 | */ | |
536 | static int __devexit tps_65023_remove(struct i2c_client *client) | |
537 | { | |
538 | struct tps_pmic *tps = i2c_get_clientdata(client); | |
539 | int i; | |
540 | ||
541 | for (i = 0; i < TPS65023_NUM_REGULATOR; i++) | |
542 | regulator_unregister(tps->rdev[i]); | |
543 | ||
30e6599d AA |
544 | kfree(tps); |
545 | ||
546 | return 0; | |
547 | } | |
548 | ||
549 | static const struct tps_info tps65023_regs[] = { | |
550 | { | |
551 | .name = "VDCDC1", | |
552 | .min_uV = 800000, | |
553 | .max_uV = 1600000, | |
554 | .table_len = ARRAY_SIZE(VDCDC1_VSEL_table), | |
555 | .table = VDCDC1_VSEL_table, | |
556 | }, | |
557 | { | |
558 | .name = "VDCDC2", | |
559 | .min_uV = 3300000, | |
560 | .max_uV = 3300000, | |
561 | .fixed = 1, | |
562 | }, | |
563 | { | |
564 | .name = "VDCDC3", | |
565 | .min_uV = 1800000, | |
566 | .max_uV = 1800000, | |
567 | .fixed = 1, | |
568 | }, | |
569 | { | |
570 | .name = "LDO1", | |
571 | .min_uV = 1000000, | |
572 | .max_uV = 3150000, | |
573 | .table_len = ARRAY_SIZE(LDO1_VSEL_table), | |
574 | .table = LDO1_VSEL_table, | |
575 | }, | |
576 | { | |
577 | .name = "LDO2", | |
578 | .min_uV = 1050000, | |
579 | .max_uV = 3300000, | |
580 | .table_len = ARRAY_SIZE(LDO2_VSEL_table), | |
581 | .table = LDO2_VSEL_table, | |
582 | }, | |
583 | }; | |
584 | ||
9e108d33 LG |
585 | static const struct i2c_device_id tps_65023_id[] = { |
586 | {.name = "tps65023", | |
587 | .driver_data = (unsigned long) tps65023_regs,}, | |
1880a2fc MV |
588 | {.name = "tps65021", |
589 | .driver_data = (unsigned long) tps65023_regs,}, | |
9e108d33 | 590 | { }, |
30e6599d AA |
591 | }; |
592 | ||
593 | MODULE_DEVICE_TABLE(i2c, tps_65023_id); | |
594 | ||
595 | static struct i2c_driver tps_65023_i2c_driver = { | |
596 | .driver = { | |
597 | .name = "tps65023", | |
598 | .owner = THIS_MODULE, | |
599 | }, | |
600 | .probe = tps_65023_probe, | |
601 | .remove = __devexit_p(tps_65023_remove), | |
9e108d33 | 602 | .id_table = tps_65023_id, |
30e6599d AA |
603 | }; |
604 | ||
605 | /** | |
606 | * tps_65023_init | |
607 | * | |
608 | * Module init function | |
609 | */ | |
610 | static int __init tps_65023_init(void) | |
611 | { | |
612 | return i2c_add_driver(&tps_65023_i2c_driver); | |
613 | } | |
614 | subsys_initcall(tps_65023_init); | |
615 | ||
616 | /** | |
617 | * tps_65023_cleanup | |
618 | * | |
619 | * Module exit function | |
620 | */ | |
621 | static void __exit tps_65023_cleanup(void) | |
622 | { | |
623 | i2c_del_driver(&tps_65023_i2c_driver); | |
624 | } | |
625 | module_exit(tps_65023_cleanup); | |
626 | ||
627 | MODULE_AUTHOR("Texas Instruments"); | |
628 | MODULE_DESCRIPTION("TPS65023 voltage regulator driver"); | |
9e108d33 | 629 | MODULE_LICENSE("GPL v2"); |