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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> |
90923351 | 28 | #include <linux/regmap.h> |
30e6599d AA |
29 | |
30 | /* Register definitions */ | |
31 | #define TPS65023_REG_VERSION 0 | |
32 | #define TPS65023_REG_PGOODZ 1 | |
33 | #define TPS65023_REG_MASK 2 | |
34 | #define TPS65023_REG_REG_CTRL 3 | |
35 | #define TPS65023_REG_CON_CTRL 4 | |
36 | #define TPS65023_REG_CON_CTRL2 5 | |
37 | #define TPS65023_REG_DEF_CORE 6 | |
38 | #define TPS65023_REG_DEFSLEW 7 | |
39 | #define TPS65023_REG_LDO_CTRL 8 | |
40 | ||
41 | /* PGOODZ bitfields */ | |
42 | #define TPS65023_PGOODZ_PWRFAILZ BIT(7) | |
43 | #define TPS65023_PGOODZ_LOWBATTZ BIT(6) | |
44 | #define TPS65023_PGOODZ_VDCDC1 BIT(5) | |
45 | #define TPS65023_PGOODZ_VDCDC2 BIT(4) | |
46 | #define TPS65023_PGOODZ_VDCDC3 BIT(3) | |
47 | #define TPS65023_PGOODZ_LDO2 BIT(2) | |
48 | #define TPS65023_PGOODZ_LDO1 BIT(1) | |
49 | ||
50 | /* MASK bitfields */ | |
51 | #define TPS65023_MASK_PWRFAILZ BIT(7) | |
52 | #define TPS65023_MASK_LOWBATTZ BIT(6) | |
53 | #define TPS65023_MASK_VDCDC1 BIT(5) | |
54 | #define TPS65023_MASK_VDCDC2 BIT(4) | |
55 | #define TPS65023_MASK_VDCDC3 BIT(3) | |
56 | #define TPS65023_MASK_LDO2 BIT(2) | |
57 | #define TPS65023_MASK_LDO1 BIT(1) | |
58 | ||
59 | /* REG_CTRL bitfields */ | |
60 | #define TPS65023_REG_CTRL_VDCDC1_EN BIT(5) | |
61 | #define TPS65023_REG_CTRL_VDCDC2_EN BIT(4) | |
62 | #define TPS65023_REG_CTRL_VDCDC3_EN BIT(3) | |
63 | #define TPS65023_REG_CTRL_LDO2_EN BIT(2) | |
64 | #define TPS65023_REG_CTRL_LDO1_EN BIT(1) | |
65 | ||
fc999b83 MF |
66 | /* REG_CTRL2 bitfields */ |
67 | #define TPS65023_REG_CTRL2_GO BIT(7) | |
68 | #define TPS65023_REG_CTRL2_CORE_ADJ BIT(6) | |
69 | #define TPS65023_REG_CTRL2_DCDC2 BIT(2) | |
70 | #define TPS65023_REG_CTRL2_DCDC1 BIT(2) | |
71 | #define TPS65023_REG_CTRL2_DCDC3 BIT(0) | |
72 | ||
f068ad8c MF |
73 | /* REG_CTRL2 bitfields */ |
74 | #define TPS65023_REG_CTRL2_GO BIT(7) | |
75 | #define TPS65023_REG_CTRL2_CORE_ADJ BIT(6) | |
76 | #define TPS65023_REG_CTRL2_DCDC2 BIT(2) | |
77 | #define TPS65023_REG_CTRL2_DCDC1 BIT(1) | |
78 | #define TPS65023_REG_CTRL2_DCDC3 BIT(0) | |
79 | ||
30e6599d AA |
80 | /* LDO_CTRL bitfields */ |
81 | #define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4) | |
82 | #define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0xF0 >> ((ldo_id)*4)) | |
83 | ||
84 | /* Number of step-down converters available */ | |
85 | #define TPS65023_NUM_DCDC 3 | |
86 | /* Number of LDO voltage regulators available */ | |
87 | #define TPS65023_NUM_LDO 2 | |
88 | /* Number of total regulators available */ | |
89 | #define TPS65023_NUM_REGULATOR (TPS65023_NUM_DCDC + TPS65023_NUM_LDO) | |
90 | ||
91 | /* DCDCs */ | |
92 | #define TPS65023_DCDC_1 0 | |
93 | #define TPS65023_DCDC_2 1 | |
94 | #define TPS65023_DCDC_3 2 | |
95 | /* LDOs */ | |
96 | #define TPS65023_LDO_1 3 | |
97 | #define TPS65023_LDO_2 4 | |
98 | ||
99 | #define TPS65023_MAX_REG_ID TPS65023_LDO_2 | |
100 | ||
101 | /* Supported voltage values for regulators */ | |
102 | static const u16 VDCDC1_VSEL_table[] = { | |
103 | 800, 825, 850, 875, | |
104 | 900, 925, 950, 975, | |
105 | 1000, 1025, 1050, 1075, | |
106 | 1100, 1125, 1150, 1175, | |
107 | 1200, 1225, 1250, 1275, | |
108 | 1300, 1325, 1350, 1375, | |
109 | 1400, 1425, 1450, 1475, | |
110 | 1500, 1525, 1550, 1600, | |
111 | }; | |
112 | ||
113 | static const u16 LDO1_VSEL_table[] = { | |
114 | 1000, 1100, 1300, 1800, | |
115 | 2200, 2600, 2800, 3150, | |
116 | }; | |
117 | ||
118 | static const u16 LDO2_VSEL_table[] = { | |
119 | 1050, 1200, 1300, 1800, | |
120 | 2500, 2800, 3000, 3300, | |
121 | }; | |
122 | ||
123 | static unsigned int num_voltages[] = {ARRAY_SIZE(VDCDC1_VSEL_table), | |
124 | 0, 0, ARRAY_SIZE(LDO1_VSEL_table), | |
125 | ARRAY_SIZE(LDO2_VSEL_table)}; | |
126 | ||
127 | /* Regulator specific details */ | |
128 | struct tps_info { | |
129 | const char *name; | |
130 | unsigned min_uV; | |
131 | unsigned max_uV; | |
132 | bool fixed; | |
133 | u8 table_len; | |
134 | const u16 *table; | |
135 | }; | |
136 | ||
137 | /* PMIC details */ | |
138 | struct tps_pmic { | |
139 | struct regulator_desc desc[TPS65023_NUM_REGULATOR]; | |
140 | struct i2c_client *client; | |
141 | struct regulator_dev *rdev[TPS65023_NUM_REGULATOR]; | |
142 | const struct tps_info *info[TPS65023_NUM_REGULATOR]; | |
90923351 | 143 | struct regmap *regmap; |
30e6599d AA |
144 | }; |
145 | ||
30e6599d AA |
146 | static int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask) |
147 | { | |
90923351 | 148 | return regmap_update_bits(tps->regmap, reg, mask, mask); |
30e6599d AA |
149 | } |
150 | ||
151 | static int tps_65023_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask) | |
152 | { | |
90923351 | 153 | return regmap_update_bits(tps->regmap, reg, mask, 0); |
30e6599d AA |
154 | } |
155 | ||
156 | static int tps_65023_reg_read(struct tps_pmic *tps, u8 reg) | |
157 | { | |
90923351 MB |
158 | unsigned int val; |
159 | int ret; | |
30e6599d | 160 | |
90923351 | 161 | ret = regmap_read(tps->regmap, reg, &val); |
30e6599d | 162 | |
90923351 MB |
163 | if (ret != 0) |
164 | return ret; | |
165 | else | |
166 | return val; | |
30e6599d AA |
167 | } |
168 | ||
169 | static int tps_65023_reg_write(struct tps_pmic *tps, u8 reg, u8 val) | |
170 | { | |
90923351 | 171 | return regmap_write(tps->regmap, reg, val); |
30e6599d AA |
172 | } |
173 | ||
174 | static int tps65023_dcdc_is_enabled(struct regulator_dev *dev) | |
175 | { | |
176 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
177 | int data, dcdc = rdev_get_id(dev); | |
178 | u8 shift; | |
179 | ||
180 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
181 | return -EINVAL; | |
182 | ||
183 | shift = TPS65023_NUM_REGULATOR - dcdc; | |
184 | data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL); | |
185 | ||
186 | if (data < 0) | |
187 | return data; | |
188 | else | |
189 | return (data & 1<<shift) ? 1 : 0; | |
190 | } | |
191 | ||
192 | static int tps65023_ldo_is_enabled(struct regulator_dev *dev) | |
193 | { | |
194 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
195 | int data, ldo = rdev_get_id(dev); | |
196 | u8 shift; | |
197 | ||
198 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
199 | return -EINVAL; | |
200 | ||
201 | shift = (ldo == TPS65023_LDO_1 ? 1 : 2); | |
202 | data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL); | |
203 | ||
204 | if (data < 0) | |
205 | return data; | |
206 | else | |
207 | return (data & 1<<shift) ? 1 : 0; | |
208 | } | |
209 | ||
210 | static int tps65023_dcdc_enable(struct regulator_dev *dev) | |
211 | { | |
212 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
213 | int dcdc = rdev_get_id(dev); | |
214 | u8 shift; | |
215 | ||
216 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
217 | return -EINVAL; | |
218 | ||
219 | shift = TPS65023_NUM_REGULATOR - dcdc; | |
220 | return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
221 | } | |
222 | ||
223 | static int tps65023_dcdc_disable(struct regulator_dev *dev) | |
224 | { | |
225 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
226 | int dcdc = rdev_get_id(dev); | |
227 | u8 shift; | |
228 | ||
229 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
230 | return -EINVAL; | |
231 | ||
232 | shift = TPS65023_NUM_REGULATOR - dcdc; | |
233 | return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
234 | } | |
235 | ||
236 | static int tps65023_ldo_enable(struct regulator_dev *dev) | |
237 | { | |
238 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
239 | int ldo = rdev_get_id(dev); | |
240 | u8 shift; | |
241 | ||
242 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
243 | return -EINVAL; | |
244 | ||
245 | shift = (ldo == TPS65023_LDO_1 ? 1 : 2); | |
246 | return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
247 | } | |
248 | ||
249 | static int tps65023_ldo_disable(struct regulator_dev *dev) | |
250 | { | |
251 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
252 | int ldo = rdev_get_id(dev); | |
253 | u8 shift; | |
254 | ||
255 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
256 | return -EINVAL; | |
257 | ||
258 | shift = (ldo == TPS65023_LDO_1 ? 1 : 2); | |
259 | return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); | |
260 | } | |
261 | ||
262 | static int tps65023_dcdc_get_voltage(struct regulator_dev *dev) | |
263 | { | |
264 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
265 | int data, dcdc = rdev_get_id(dev); | |
266 | ||
267 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
268 | return -EINVAL; | |
269 | ||
270 | if (dcdc == TPS65023_DCDC_1) { | |
271 | data = tps_65023_reg_read(tps, TPS65023_REG_DEF_CORE); | |
272 | if (data < 0) | |
273 | return data; | |
274 | data &= (tps->info[dcdc]->table_len - 1); | |
275 | return tps->info[dcdc]->table[data] * 1000; | |
276 | } else | |
277 | return tps->info[dcdc]->min_uV; | |
278 | } | |
279 | ||
280 | static int tps65023_dcdc_set_voltage(struct regulator_dev *dev, | |
3a93f2a9 MB |
281 | int min_uV, int max_uV, |
282 | unsigned *selector) | |
30e6599d AA |
283 | { |
284 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
285 | int dcdc = rdev_get_id(dev); | |
286 | int vsel; | |
287 | ||
288 | if (dcdc != TPS65023_DCDC_1) | |
289 | return -EINVAL; | |
290 | ||
291 | if (min_uV < tps->info[dcdc]->min_uV | |
292 | || min_uV > tps->info[dcdc]->max_uV) | |
293 | return -EINVAL; | |
294 | if (max_uV < tps->info[dcdc]->min_uV | |
295 | || max_uV > tps->info[dcdc]->max_uV) | |
296 | return -EINVAL; | |
297 | ||
298 | for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) { | |
299 | int mV = tps->info[dcdc]->table[vsel]; | |
300 | int uV = mV * 1000; | |
301 | ||
302 | /* Break at the first in-range value */ | |
303 | if (min_uV <= uV && uV <= max_uV) | |
304 | break; | |
305 | } | |
306 | ||
3a93f2a9 MB |
307 | *selector = vsel; |
308 | ||
30e6599d AA |
309 | /* write to the register in case we found a match */ |
310 | if (vsel == tps->info[dcdc]->table_len) | |
311 | return -EINVAL; | |
312 | else | |
313 | return tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel); | |
314 | } | |
315 | ||
316 | static int tps65023_ldo_get_voltage(struct regulator_dev *dev) | |
317 | { | |
318 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
319 | int data, ldo = rdev_get_id(dev); | |
320 | ||
321 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
322 | return -EINVAL; | |
323 | ||
324 | data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL); | |
325 | if (data < 0) | |
326 | return data; | |
327 | ||
328 | data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)); | |
329 | data &= (tps->info[ldo]->table_len - 1); | |
330 | return tps->info[ldo]->table[data] * 1000; | |
331 | } | |
332 | ||
333 | static int tps65023_ldo_set_voltage(struct regulator_dev *dev, | |
3a93f2a9 | 334 | int min_uV, int max_uV, unsigned *selector) |
30e6599d AA |
335 | { |
336 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
337 | int data, vsel, ldo = rdev_get_id(dev); | |
338 | ||
339 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
340 | return -EINVAL; | |
341 | ||
342 | if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV) | |
343 | return -EINVAL; | |
344 | if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV) | |
345 | return -EINVAL; | |
346 | ||
347 | for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) { | |
348 | int mV = tps->info[ldo]->table[vsel]; | |
349 | int uV = mV * 1000; | |
350 | ||
351 | /* Break at the first in-range value */ | |
352 | if (min_uV <= uV && uV <= max_uV) | |
353 | break; | |
354 | } | |
355 | ||
356 | if (vsel == tps->info[ldo]->table_len) | |
357 | return -EINVAL; | |
358 | ||
3a93f2a9 MB |
359 | *selector = vsel; |
360 | ||
30e6599d AA |
361 | data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL); |
362 | if (data < 0) | |
363 | return data; | |
364 | ||
365 | data &= TPS65023_LDO_CTRL_LDOx_MASK(ldo - TPS65023_LDO_1); | |
366 | data |= (vsel << (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1))); | |
367 | return tps_65023_reg_write(tps, TPS65023_REG_LDO_CTRL, data); | |
368 | } | |
369 | ||
370 | static int tps65023_dcdc_list_voltage(struct regulator_dev *dev, | |
371 | unsigned selector) | |
372 | { | |
373 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
374 | int dcdc = rdev_get_id(dev); | |
375 | ||
376 | if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) | |
377 | return -EINVAL; | |
378 | ||
379 | if (dcdc == TPS65023_DCDC_1) { | |
380 | if (selector >= tps->info[dcdc]->table_len) | |
381 | return -EINVAL; | |
382 | else | |
383 | return tps->info[dcdc]->table[selector] * 1000; | |
384 | } else | |
385 | return tps->info[dcdc]->min_uV; | |
386 | } | |
387 | ||
388 | static int tps65023_ldo_list_voltage(struct regulator_dev *dev, | |
389 | unsigned selector) | |
390 | { | |
391 | struct tps_pmic *tps = rdev_get_drvdata(dev); | |
392 | int ldo = rdev_get_id(dev); | |
393 | ||
394 | if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) | |
395 | return -EINVAL; | |
396 | ||
397 | if (selector >= tps->info[ldo]->table_len) | |
398 | return -EINVAL; | |
399 | else | |
400 | return tps->info[ldo]->table[selector] * 1000; | |
401 | } | |
402 | ||
403 | /* Operations permitted on VDCDCx */ | |
404 | static struct regulator_ops tps65023_dcdc_ops = { | |
405 | .is_enabled = tps65023_dcdc_is_enabled, | |
406 | .enable = tps65023_dcdc_enable, | |
407 | .disable = tps65023_dcdc_disable, | |
408 | .get_voltage = tps65023_dcdc_get_voltage, | |
409 | .set_voltage = tps65023_dcdc_set_voltage, | |
410 | .list_voltage = tps65023_dcdc_list_voltage, | |
411 | }; | |
412 | ||
413 | /* Operations permitted on LDOx */ | |
414 | static struct regulator_ops tps65023_ldo_ops = { | |
415 | .is_enabled = tps65023_ldo_is_enabled, | |
416 | .enable = tps65023_ldo_enable, | |
417 | .disable = tps65023_ldo_disable, | |
418 | .get_voltage = tps65023_ldo_get_voltage, | |
419 | .set_voltage = tps65023_ldo_set_voltage, | |
420 | .list_voltage = tps65023_ldo_list_voltage, | |
421 | }; | |
422 | ||
90923351 MB |
423 | static struct regmap_config tps65023_regmap_config = { |
424 | .reg_bits = 8, | |
425 | .val_bits = 8, | |
426 | }; | |
427 | ||
54d13ab1 DT |
428 | static int __devinit tps_65023_probe(struct i2c_client *client, |
429 | const struct i2c_device_id *id) | |
30e6599d | 430 | { |
30e6599d AA |
431 | const struct tps_info *info = (void *)id->driver_data; |
432 | struct regulator_init_data *init_data; | |
433 | struct regulator_dev *rdev; | |
434 | struct tps_pmic *tps; | |
435 | int i; | |
54d13ab1 | 436 | int error; |
30e6599d AA |
437 | |
438 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
439 | return -EIO; | |
440 | ||
441 | /** | |
442 | * init_data points to array of regulator_init structures | |
443 | * coming from the board-evm file. | |
444 | */ | |
445 | init_data = client->dev.platform_data; | |
30e6599d AA |
446 | if (!init_data) |
447 | return -EIO; | |
448 | ||
449 | tps = kzalloc(sizeof(*tps), GFP_KERNEL); | |
450 | if (!tps) | |
451 | return -ENOMEM; | |
452 | ||
90923351 MB |
453 | tps->regmap = regmap_init_i2c(client, &tps65023_regmap_config); |
454 | if (IS_ERR(tps->regmap)) { | |
455 | error = PTR_ERR(tps->regmap); | |
456 | dev_err(&client->dev, "Failed to allocate register map: %d\n", | |
457 | error); | |
458 | goto fail_alloc; | |
459 | } | |
30e6599d AA |
460 | |
461 | /* common for all regulators */ | |
462 | tps->client = client; | |
463 | ||
464 | for (i = 0; i < TPS65023_NUM_REGULATOR; i++, info++, init_data++) { | |
465 | /* Store regulator specific information */ | |
466 | tps->info[i] = info; | |
467 | ||
468 | tps->desc[i].name = info->name; | |
77fa44d0 | 469 | tps->desc[i].id = i; |
30e6599d AA |
470 | tps->desc[i].n_voltages = num_voltages[i]; |
471 | tps->desc[i].ops = (i > TPS65023_DCDC_3 ? | |
472 | &tps65023_ldo_ops : &tps65023_dcdc_ops); | |
473 | tps->desc[i].type = REGULATOR_VOLTAGE; | |
474 | tps->desc[i].owner = THIS_MODULE; | |
475 | ||
476 | /* Register the regulators */ | |
477 | rdev = regulator_register(&tps->desc[i], &client->dev, | |
54d13ab1 | 478 | init_data, tps); |
30e6599d AA |
479 | if (IS_ERR(rdev)) { |
480 | dev_err(&client->dev, "failed to register %s\n", | |
481 | id->name); | |
54d13ab1 DT |
482 | error = PTR_ERR(rdev); |
483 | goto fail; | |
30e6599d AA |
484 | } |
485 | ||
486 | /* Save regulator for cleanup */ | |
487 | tps->rdev[i] = rdev; | |
488 | } | |
489 | ||
490 | i2c_set_clientdata(client, tps); | |
491 | ||
f068ad8c MF |
492 | /* Enable setting output voltage by I2C */ |
493 | tps_65023_clear_bits(tps, TPS65023_REG_CON_CTRL2, | |
494 | TPS65023_REG_CTRL2_CORE_ADJ); | |
495 | ||
fc999b83 MF |
496 | /* Enable setting output voltage by I2C */ |
497 | tps_65023_clear_bits(tps, TPS65023_REG_CON_CTRL2, | |
498 | TPS65023_REG_CTRL2_CORE_ADJ); | |
499 | ||
30e6599d | 500 | return 0; |
54d13ab1 DT |
501 | |
502 | fail: | |
503 | while (--i >= 0) | |
504 | regulator_unregister(tps->rdev[i]); | |
505 | ||
90923351 MB |
506 | regmap_exit(tps->regmap); |
507 | fail_alloc: | |
54d13ab1 DT |
508 | kfree(tps); |
509 | return error; | |
30e6599d AA |
510 | } |
511 | ||
512 | /** | |
513 | * tps_65023_remove - TPS65023 driver i2c remove handler | |
514 | * @client: i2c driver client device structure | |
515 | * | |
516 | * Unregister TPS driver as an i2c client device driver | |
517 | */ | |
518 | static int __devexit tps_65023_remove(struct i2c_client *client) | |
519 | { | |
520 | struct tps_pmic *tps = i2c_get_clientdata(client); | |
521 | int i; | |
522 | ||
523 | for (i = 0; i < TPS65023_NUM_REGULATOR; i++) | |
524 | regulator_unregister(tps->rdev[i]); | |
525 | ||
90923351 | 526 | regmap_exit(tps->regmap); |
30e6599d AA |
527 | kfree(tps); |
528 | ||
529 | return 0; | |
530 | } | |
531 | ||
532 | static const struct tps_info tps65023_regs[] = { | |
533 | { | |
534 | .name = "VDCDC1", | |
535 | .min_uV = 800000, | |
536 | .max_uV = 1600000, | |
537 | .table_len = ARRAY_SIZE(VDCDC1_VSEL_table), | |
538 | .table = VDCDC1_VSEL_table, | |
539 | }, | |
540 | { | |
541 | .name = "VDCDC2", | |
542 | .min_uV = 3300000, | |
543 | .max_uV = 3300000, | |
544 | .fixed = 1, | |
545 | }, | |
546 | { | |
547 | .name = "VDCDC3", | |
548 | .min_uV = 1800000, | |
549 | .max_uV = 1800000, | |
550 | .fixed = 1, | |
551 | }, | |
552 | { | |
553 | .name = "LDO1", | |
554 | .min_uV = 1000000, | |
555 | .max_uV = 3150000, | |
556 | .table_len = ARRAY_SIZE(LDO1_VSEL_table), | |
557 | .table = LDO1_VSEL_table, | |
558 | }, | |
559 | { | |
560 | .name = "LDO2", | |
561 | .min_uV = 1050000, | |
562 | .max_uV = 3300000, | |
563 | .table_len = ARRAY_SIZE(LDO2_VSEL_table), | |
564 | .table = LDO2_VSEL_table, | |
565 | }, | |
566 | }; | |
567 | ||
9e108d33 LG |
568 | static const struct i2c_device_id tps_65023_id[] = { |
569 | {.name = "tps65023", | |
570 | .driver_data = (unsigned long) tps65023_regs,}, | |
1880a2fc MV |
571 | {.name = "tps65021", |
572 | .driver_data = (unsigned long) tps65023_regs,}, | |
9e108d33 | 573 | { }, |
30e6599d AA |
574 | }; |
575 | ||
576 | MODULE_DEVICE_TABLE(i2c, tps_65023_id); | |
577 | ||
578 | static struct i2c_driver tps_65023_i2c_driver = { | |
579 | .driver = { | |
580 | .name = "tps65023", | |
581 | .owner = THIS_MODULE, | |
582 | }, | |
583 | .probe = tps_65023_probe, | |
584 | .remove = __devexit_p(tps_65023_remove), | |
9e108d33 | 585 | .id_table = tps_65023_id, |
30e6599d AA |
586 | }; |
587 | ||
588 | /** | |
589 | * tps_65023_init | |
590 | * | |
591 | * Module init function | |
592 | */ | |
593 | static int __init tps_65023_init(void) | |
594 | { | |
595 | return i2c_add_driver(&tps_65023_i2c_driver); | |
596 | } | |
597 | subsys_initcall(tps_65023_init); | |
598 | ||
599 | /** | |
600 | * tps_65023_cleanup | |
601 | * | |
602 | * Module exit function | |
603 | */ | |
604 | static void __exit tps_65023_cleanup(void) | |
605 | { | |
606 | i2c_del_driver(&tps_65023_i2c_driver); | |
607 | } | |
608 | module_exit(tps_65023_cleanup); | |
609 | ||
610 | MODULE_AUTHOR("Texas Instruments"); | |
611 | MODULE_DESCRIPTION("TPS65023 voltage regulator driver"); | |
9e108d33 | 612 | MODULE_LICENSE("GPL v2"); |