Commit | Line | Data |
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3fa5b8e0 AA |
1 | /* |
2 | * tps6507x-regulator.c | |
3 | * | |
4 | * Regulator driver for TPS65073 PMIC | |
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> | |
7d14831e | 25 | #include <linux/regulator/tps6507x.h> |
5a0e3ad6 | 26 | #include <linux/slab.h> |
d183fcc9 | 27 | #include <linux/mfd/tps6507x.h> |
3fa5b8e0 AA |
28 | |
29 | /* DCDC's */ | |
30 | #define TPS6507X_DCDC_1 0 | |
31 | #define TPS6507X_DCDC_2 1 | |
32 | #define TPS6507X_DCDC_3 2 | |
33 | /* LDOs */ | |
34 | #define TPS6507X_LDO_1 3 | |
35 | #define TPS6507X_LDO_2 4 | |
36 | ||
37 | #define TPS6507X_MAX_REG_ID TPS6507X_LDO_2 | |
38 | ||
39 | /* Number of step-down converters available */ | |
40 | #define TPS6507X_NUM_DCDC 3 | |
41 | /* Number of LDO voltage regulators available */ | |
42 | #define TPS6507X_NUM_LDO 2 | |
43 | /* Number of total regulators available */ | |
44 | #define TPS6507X_NUM_REGULATOR (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO) | |
45 | ||
46 | /* Supported voltage values for regulators (in milliVolts) */ | |
47 | static const u16 VDCDCx_VSEL_table[] = { | |
48 | 725, 750, 775, 800, | |
49 | 825, 850, 875, 900, | |
50 | 925, 950, 975, 1000, | |
51 | 1025, 1050, 1075, 1100, | |
52 | 1125, 1150, 1175, 1200, | |
53 | 1225, 1250, 1275, 1300, | |
54 | 1325, 1350, 1375, 1400, | |
55 | 1425, 1450, 1475, 1500, | |
56 | 1550, 1600, 1650, 1700, | |
57 | 1750, 1800, 1850, 1900, | |
58 | 1950, 2000, 2050, 2100, | |
59 | 2150, 2200, 2250, 2300, | |
60 | 2350, 2400, 2450, 2500, | |
61 | 2550, 2600, 2650, 2700, | |
62 | 2750, 2800, 2850, 2900, | |
63 | 3000, 3100, 3200, 3300, | |
64 | }; | |
65 | ||
66 | static const u16 LDO1_VSEL_table[] = { | |
67 | 1000, 1100, 1200, 1250, | |
68 | 1300, 1350, 1400, 1500, | |
69 | 1600, 1800, 2500, 2750, | |
70 | 2800, 3000, 3100, 3300, | |
71 | }; | |
72 | ||
73 | static const u16 LDO2_VSEL_table[] = { | |
74 | 725, 750, 775, 800, | |
75 | 825, 850, 875, 900, | |
76 | 925, 950, 975, 1000, | |
77 | 1025, 1050, 1075, 1100, | |
78 | 1125, 1150, 1175, 1200, | |
79 | 1225, 1250, 1275, 1300, | |
80 | 1325, 1350, 1375, 1400, | |
81 | 1425, 1450, 1475, 1500, | |
82 | 1550, 1600, 1650, 1700, | |
83 | 1750, 1800, 1850, 1900, | |
84 | 1950, 2000, 2050, 2100, | |
85 | 2150, 2200, 2250, 2300, | |
86 | 2350, 2400, 2450, 2500, | |
87 | 2550, 2600, 2650, 2700, | |
88 | 2750, 2800, 2850, 2900, | |
89 | 3000, 3100, 3200, 3300, | |
90 | }; | |
91 | ||
3fa5b8e0 AA |
92 | struct tps_info { |
93 | const char *name; | |
94 | unsigned min_uV; | |
95 | unsigned max_uV; | |
96 | u8 table_len; | |
97 | const u16 *table; | |
7d14831e AA |
98 | |
99 | /* Does DCDC high or the low register defines output voltage? */ | |
100 | bool defdcdc_default; | |
3fa5b8e0 AA |
101 | }; |
102 | ||
7d14831e | 103 | static struct tps_info tps6507x_pmic_regs[] = { |
31dd6a26 TF |
104 | { |
105 | .name = "VDCDC1", | |
106 | .min_uV = 725000, | |
107 | .max_uV = 3300000, | |
108 | .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), | |
109 | .table = VDCDCx_VSEL_table, | |
110 | }, | |
111 | { | |
112 | .name = "VDCDC2", | |
113 | .min_uV = 725000, | |
114 | .max_uV = 3300000, | |
115 | .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), | |
116 | .table = VDCDCx_VSEL_table, | |
117 | }, | |
118 | { | |
119 | .name = "VDCDC3", | |
120 | .min_uV = 725000, | |
121 | .max_uV = 3300000, | |
122 | .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), | |
123 | .table = VDCDCx_VSEL_table, | |
124 | }, | |
125 | { | |
126 | .name = "LDO1", | |
127 | .min_uV = 1000000, | |
128 | .max_uV = 3300000, | |
129 | .table_len = ARRAY_SIZE(LDO1_VSEL_table), | |
130 | .table = LDO1_VSEL_table, | |
131 | }, | |
132 | { | |
133 | .name = "LDO2", | |
134 | .min_uV = 725000, | |
135 | .max_uV = 3300000, | |
136 | .table_len = ARRAY_SIZE(LDO2_VSEL_table), | |
137 | .table = LDO2_VSEL_table, | |
138 | }, | |
139 | }; | |
140 | ||
4ce5ba5b | 141 | struct tps6507x_pmic { |
3fa5b8e0 | 142 | struct regulator_desc desc[TPS6507X_NUM_REGULATOR]; |
31dd6a26 | 143 | struct tps6507x_dev *mfd; |
3fa5b8e0 | 144 | struct regulator_dev *rdev[TPS6507X_NUM_REGULATOR]; |
7d14831e | 145 | struct tps_info *info[TPS6507X_NUM_REGULATOR]; |
3fa5b8e0 AA |
146 | struct mutex io_lock; |
147 | }; | |
4ce5ba5b | 148 | static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg) |
3fa5b8e0 | 149 | { |
31dd6a26 TF |
150 | u8 val; |
151 | int err; | |
152 | ||
153 | err = tps->mfd->read_dev(tps->mfd, reg, 1, &val); | |
154 | ||
155 | if (err) | |
156 | return err; | |
157 | ||
158 | return val; | |
3fa5b8e0 AA |
159 | } |
160 | ||
4ce5ba5b | 161 | static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val) |
3fa5b8e0 | 162 | { |
31dd6a26 | 163 | return tps->mfd->write_dev(tps->mfd, reg, 1, &val); |
3fa5b8e0 AA |
164 | } |
165 | ||
4ce5ba5b | 166 | static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) |
3fa5b8e0 AA |
167 | { |
168 | int err, data; | |
169 | ||
170 | mutex_lock(&tps->io_lock); | |
171 | ||
4ce5ba5b | 172 | data = tps6507x_pmic_read(tps, reg); |
3fa5b8e0 | 173 | if (data < 0) { |
31dd6a26 | 174 | dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg); |
3fa5b8e0 AA |
175 | err = data; |
176 | goto out; | |
177 | } | |
178 | ||
179 | data |= mask; | |
4ce5ba5b | 180 | err = tps6507x_pmic_write(tps, reg, data); |
3fa5b8e0 | 181 | if (err) |
31dd6a26 | 182 | dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg); |
3fa5b8e0 AA |
183 | |
184 | out: | |
185 | mutex_unlock(&tps->io_lock); | |
186 | return err; | |
187 | } | |
188 | ||
4ce5ba5b | 189 | static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) |
3fa5b8e0 AA |
190 | { |
191 | int err, data; | |
192 | ||
193 | mutex_lock(&tps->io_lock); | |
194 | ||
4ce5ba5b | 195 | data = tps6507x_pmic_read(tps, reg); |
3fa5b8e0 | 196 | if (data < 0) { |
31dd6a26 | 197 | dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg); |
3fa5b8e0 AA |
198 | err = data; |
199 | goto out; | |
200 | } | |
201 | ||
202 | data &= ~mask; | |
4ce5ba5b | 203 | err = tps6507x_pmic_write(tps, reg, data); |
3fa5b8e0 | 204 | if (err) |
31dd6a26 | 205 | dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg); |
3fa5b8e0 AA |
206 | |
207 | out: | |
208 | mutex_unlock(&tps->io_lock); | |
209 | return err; | |
210 | } | |
211 | ||
4ce5ba5b | 212 | static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg) |
3fa5b8e0 AA |
213 | { |
214 | int data; | |
215 | ||
216 | mutex_lock(&tps->io_lock); | |
217 | ||
4ce5ba5b | 218 | data = tps6507x_pmic_read(tps, reg); |
3fa5b8e0 | 219 | if (data < 0) |
31dd6a26 | 220 | dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg); |
3fa5b8e0 AA |
221 | |
222 | mutex_unlock(&tps->io_lock); | |
223 | return data; | |
224 | } | |
225 | ||
4ce5ba5b | 226 | static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val) |
3fa5b8e0 AA |
227 | { |
228 | int err; | |
229 | ||
230 | mutex_lock(&tps->io_lock); | |
231 | ||
4ce5ba5b | 232 | err = tps6507x_pmic_write(tps, reg, val); |
3fa5b8e0 | 233 | if (err < 0) |
31dd6a26 | 234 | dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg); |
3fa5b8e0 AA |
235 | |
236 | mutex_unlock(&tps->io_lock); | |
237 | return err; | |
238 | } | |
239 | ||
f2933d33 | 240 | static int tps6507x_pmic_is_enabled(struct regulator_dev *dev) |
3fa5b8e0 | 241 | { |
4ce5ba5b | 242 | struct tps6507x_pmic *tps = rdev_get_drvdata(dev); |
f2933d33 | 243 | int data, rid = rdev_get_id(dev); |
3fa5b8e0 AA |
244 | u8 shift; |
245 | ||
f2933d33 | 246 | if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2) |
3fa5b8e0 AA |
247 | return -EINVAL; |
248 | ||
f2933d33 | 249 | shift = TPS6507X_MAX_REG_ID - rid; |
4ce5ba5b | 250 | data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1); |
3fa5b8e0 AA |
251 | |
252 | if (data < 0) | |
253 | return data; | |
254 | else | |
255 | return (data & 1<<shift) ? 1 : 0; | |
256 | } | |
257 | ||
f2933d33 | 258 | static int tps6507x_pmic_enable(struct regulator_dev *dev) |
3fa5b8e0 | 259 | { |
4ce5ba5b | 260 | struct tps6507x_pmic *tps = rdev_get_drvdata(dev); |
f2933d33 | 261 | int rid = rdev_get_id(dev); |
3fa5b8e0 AA |
262 | u8 shift; |
263 | ||
f2933d33 | 264 | if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2) |
3fa5b8e0 AA |
265 | return -EINVAL; |
266 | ||
f2933d33 | 267 | shift = TPS6507X_MAX_REG_ID - rid; |
4ce5ba5b | 268 | return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift); |
3fa5b8e0 AA |
269 | } |
270 | ||
f2933d33 | 271 | static int tps6507x_pmic_disable(struct regulator_dev *dev) |
3fa5b8e0 | 272 | { |
4ce5ba5b | 273 | struct tps6507x_pmic *tps = rdev_get_drvdata(dev); |
f2933d33 | 274 | int rid = rdev_get_id(dev); |
3fa5b8e0 AA |
275 | u8 shift; |
276 | ||
f2933d33 | 277 | if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2) |
3fa5b8e0 AA |
278 | return -EINVAL; |
279 | ||
f2933d33 | 280 | shift = TPS6507X_MAX_REG_ID - rid; |
4ce5ba5b TF |
281 | return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1, |
282 | 1 << shift); | |
3fa5b8e0 AA |
283 | } |
284 | ||
7c842a1d | 285 | static int tps6507x_pmic_get_voltage_sel(struct regulator_dev *dev) |
3fa5b8e0 | 286 | { |
4ce5ba5b | 287 | struct tps6507x_pmic *tps = rdev_get_drvdata(dev); |
f2933d33 AL |
288 | int data, rid = rdev_get_id(dev); |
289 | u8 reg, mask; | |
3fa5b8e0 | 290 | |
f2933d33 | 291 | switch (rid) { |
3fa5b8e0 AA |
292 | case TPS6507X_DCDC_1: |
293 | reg = TPS6507X_REG_DEFDCDC1; | |
f2933d33 | 294 | mask = TPS6507X_DEFDCDCX_DCDC_MASK; |
3fa5b8e0 AA |
295 | break; |
296 | case TPS6507X_DCDC_2: | |
f2933d33 | 297 | if (tps->info[rid]->defdcdc_default) |
7d14831e AA |
298 | reg = TPS6507X_REG_DEFDCDC2_HIGH; |
299 | else | |
300 | reg = TPS6507X_REG_DEFDCDC2_LOW; | |
f2933d33 | 301 | mask = TPS6507X_DEFDCDCX_DCDC_MASK; |
3fa5b8e0 AA |
302 | break; |
303 | case TPS6507X_DCDC_3: | |
f2933d33 | 304 | if (tps->info[rid]->defdcdc_default) |
7d14831e AA |
305 | reg = TPS6507X_REG_DEFDCDC3_HIGH; |
306 | else | |
307 | reg = TPS6507X_REG_DEFDCDC3_LOW; | |
f2933d33 AL |
308 | mask = TPS6507X_DEFDCDCX_DCDC_MASK; |
309 | break; | |
310 | case TPS6507X_LDO_1: | |
311 | reg = TPS6507X_REG_LDO_CTRL1; | |
312 | mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK; | |
313 | break; | |
314 | case TPS6507X_LDO_2: | |
315 | reg = TPS6507X_REG_DEFLDO2; | |
316 | mask = TPS6507X_REG_DEFLDO2_LDO2_MASK; | |
3fa5b8e0 AA |
317 | break; |
318 | default: | |
319 | return -EINVAL; | |
320 | } | |
321 | ||
4ce5ba5b | 322 | data = tps6507x_pmic_reg_read(tps, reg); |
3fa5b8e0 AA |
323 | if (data < 0) |
324 | return data; | |
325 | ||
f2933d33 | 326 | data &= mask; |
7c842a1d | 327 | return data; |
3fa5b8e0 AA |
328 | } |
329 | ||
ca61a7bf AL |
330 | static int tps6507x_pmic_set_voltage_sel(struct regulator_dev *dev, |
331 | unsigned selector) | |
3fa5b8e0 | 332 | { |
4ce5ba5b | 333 | struct tps6507x_pmic *tps = rdev_get_drvdata(dev); |
ca61a7bf | 334 | int data, rid = rdev_get_id(dev); |
f2933d33 | 335 | u8 reg, mask; |
3fa5b8e0 | 336 | |
f2933d33 | 337 | switch (rid) { |
3fa5b8e0 AA |
338 | case TPS6507X_DCDC_1: |
339 | reg = TPS6507X_REG_DEFDCDC1; | |
f2933d33 | 340 | mask = TPS6507X_DEFDCDCX_DCDC_MASK; |
3fa5b8e0 AA |
341 | break; |
342 | case TPS6507X_DCDC_2: | |
f2933d33 | 343 | if (tps->info[rid]->defdcdc_default) |
7d14831e AA |
344 | reg = TPS6507X_REG_DEFDCDC2_HIGH; |
345 | else | |
346 | reg = TPS6507X_REG_DEFDCDC2_LOW; | |
f2933d33 | 347 | mask = TPS6507X_DEFDCDCX_DCDC_MASK; |
3fa5b8e0 AA |
348 | break; |
349 | case TPS6507X_DCDC_3: | |
f2933d33 | 350 | if (tps->info[rid]->defdcdc_default) |
7d14831e AA |
351 | reg = TPS6507X_REG_DEFDCDC3_HIGH; |
352 | else | |
353 | reg = TPS6507X_REG_DEFDCDC3_LOW; | |
f2933d33 AL |
354 | mask = TPS6507X_DEFDCDCX_DCDC_MASK; |
355 | break; | |
356 | case TPS6507X_LDO_1: | |
357 | reg = TPS6507X_REG_LDO_CTRL1; | |
358 | mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK; | |
359 | break; | |
360 | case TPS6507X_LDO_2: | |
361 | reg = TPS6507X_REG_DEFLDO2; | |
362 | mask = TPS6507X_REG_DEFLDO2_LDO2_MASK; | |
3fa5b8e0 AA |
363 | break; |
364 | default: | |
365 | return -EINVAL; | |
366 | } | |
367 | ||
4ce5ba5b | 368 | data = tps6507x_pmic_reg_read(tps, reg); |
3fa5b8e0 AA |
369 | if (data < 0) |
370 | return data; | |
371 | ||
372 | data &= ~mask; | |
ca61a7bf | 373 | data |= selector; |
3fa5b8e0 | 374 | |
4ce5ba5b | 375 | return tps6507x_pmic_reg_write(tps, reg, data); |
3fa5b8e0 AA |
376 | } |
377 | ||
f2933d33 | 378 | static int tps6507x_pmic_list_voltage(struct regulator_dev *dev, |
3fa5b8e0 AA |
379 | unsigned selector) |
380 | { | |
4ce5ba5b | 381 | struct tps6507x_pmic *tps = rdev_get_drvdata(dev); |
f2933d33 | 382 | int rid = rdev_get_id(dev); |
3fa5b8e0 | 383 | |
f2933d33 | 384 | if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2) |
3fa5b8e0 AA |
385 | return -EINVAL; |
386 | ||
f2933d33 | 387 | if (selector >= tps->info[rid]->table_len) |
3fa5b8e0 AA |
388 | return -EINVAL; |
389 | else | |
f2933d33 | 390 | return tps->info[rid]->table[selector] * 1000; |
3fa5b8e0 AA |
391 | } |
392 | ||
f2933d33 AL |
393 | static struct regulator_ops tps6507x_pmic_ops = { |
394 | .is_enabled = tps6507x_pmic_is_enabled, | |
395 | .enable = tps6507x_pmic_enable, | |
396 | .disable = tps6507x_pmic_disable, | |
7c842a1d | 397 | .get_voltage_sel = tps6507x_pmic_get_voltage_sel, |
ca61a7bf | 398 | .set_voltage_sel = tps6507x_pmic_set_voltage_sel, |
f2933d33 | 399 | .list_voltage = tps6507x_pmic_list_voltage, |
3fa5b8e0 AA |
400 | }; |
401 | ||
f2933d33 | 402 | static __devinit int tps6507x_pmic_probe(struct platform_device *pdev) |
3fa5b8e0 | 403 | { |
31dd6a26 | 404 | struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent); |
7d14831e | 405 | struct tps_info *info = &tps6507x_pmic_regs[0]; |
c172708d | 406 | struct regulator_config config = { }; |
3fa5b8e0 AA |
407 | struct regulator_init_data *init_data; |
408 | struct regulator_dev *rdev; | |
4ce5ba5b | 409 | struct tps6507x_pmic *tps; |
0bc20bba | 410 | struct tps6507x_board *tps_board; |
3fa5b8e0 | 411 | int i; |
56c23492 | 412 | int error; |
3fa5b8e0 | 413 | |
0bc20bba TF |
414 | /** |
415 | * tps_board points to pmic related constants | |
416 | * coming from the board-evm file. | |
417 | */ | |
418 | ||
31dd6a26 | 419 | tps_board = dev_get_platdata(tps6507x_dev->dev); |
0bc20bba TF |
420 | if (!tps_board) |
421 | return -EINVAL; | |
422 | ||
3fa5b8e0 AA |
423 | /** |
424 | * init_data points to array of regulator_init structures | |
425 | * coming from the board-evm file. | |
426 | */ | |
0bc20bba | 427 | init_data = tps_board->tps6507x_pmic_init_data; |
3fa5b8e0 | 428 | if (!init_data) |
0bc20bba | 429 | return -EINVAL; |
3fa5b8e0 | 430 | |
9eb0c421 | 431 | tps = devm_kzalloc(&pdev->dev, sizeof(*tps), GFP_KERNEL); |
3fa5b8e0 AA |
432 | if (!tps) |
433 | return -ENOMEM; | |
434 | ||
435 | mutex_init(&tps->io_lock); | |
436 | ||
437 | /* common for all regulators */ | |
31dd6a26 | 438 | tps->mfd = tps6507x_dev; |
3fa5b8e0 AA |
439 | |
440 | for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++, init_data++) { | |
441 | /* Register the regulators */ | |
442 | tps->info[i] = info; | |
7d14831e AA |
443 | if (init_data->driver_data) { |
444 | struct tps6507x_reg_platform_data *data = | |
445 | init_data->driver_data; | |
446 | tps->info[i]->defdcdc_default = data->defdcdc_default; | |
447 | } | |
448 | ||
3fa5b8e0 | 449 | tps->desc[i].name = info->name; |
77fa44d0 | 450 | tps->desc[i].id = i; |
0fcdb109 | 451 | tps->desc[i].n_voltages = info->table_len; |
f2933d33 | 452 | tps->desc[i].ops = &tps6507x_pmic_ops; |
3fa5b8e0 AA |
453 | tps->desc[i].type = REGULATOR_VOLTAGE; |
454 | tps->desc[i].owner = THIS_MODULE; | |
455 | ||
c172708d MB |
456 | config.dev = tps6507x_dev->dev; |
457 | config.init_data = init_data; | |
458 | config.driver_data = tps; | |
459 | ||
460 | rdev = regulator_register(&tps->desc[i], &config); | |
3fa5b8e0 | 461 | if (IS_ERR(rdev)) { |
31dd6a26 TF |
462 | dev_err(tps6507x_dev->dev, |
463 | "failed to register %s regulator\n", | |
464 | pdev->name); | |
56c23492 DT |
465 | error = PTR_ERR(rdev); |
466 | goto fail; | |
3fa5b8e0 AA |
467 | } |
468 | ||
469 | /* Save regulator for cleanup */ | |
470 | tps->rdev[i] = rdev; | |
471 | } | |
472 | ||
31dd6a26 | 473 | tps6507x_dev->pmic = tps; |
d7399fa8 | 474 | platform_set_drvdata(pdev, tps6507x_dev); |
3fa5b8e0 AA |
475 | |
476 | return 0; | |
56c23492 DT |
477 | |
478 | fail: | |
479 | while (--i >= 0) | |
480 | regulator_unregister(tps->rdev[i]); | |
56c23492 | 481 | return error; |
3fa5b8e0 AA |
482 | } |
483 | ||
31dd6a26 | 484 | static int __devexit tps6507x_pmic_remove(struct platform_device *pdev) |
3fa5b8e0 | 485 | { |
31dd6a26 TF |
486 | struct tps6507x_dev *tps6507x_dev = platform_get_drvdata(pdev); |
487 | struct tps6507x_pmic *tps = tps6507x_dev->pmic; | |
3fa5b8e0 AA |
488 | int i; |
489 | ||
490 | for (i = 0; i < TPS6507X_NUM_REGULATOR; i++) | |
491 | regulator_unregister(tps->rdev[i]); | |
3fa5b8e0 AA |
492 | return 0; |
493 | } | |
494 | ||
31dd6a26 | 495 | static struct platform_driver tps6507x_pmic_driver = { |
3fa5b8e0 | 496 | .driver = { |
31dd6a26 | 497 | .name = "tps6507x-pmic", |
3fa5b8e0 AA |
498 | .owner = THIS_MODULE, |
499 | }, | |
4ce5ba5b TF |
500 | .probe = tps6507x_pmic_probe, |
501 | .remove = __devexit_p(tps6507x_pmic_remove), | |
3fa5b8e0 AA |
502 | }; |
503 | ||
4ce5ba5b | 504 | static int __init tps6507x_pmic_init(void) |
3fa5b8e0 | 505 | { |
31dd6a26 | 506 | return platform_driver_register(&tps6507x_pmic_driver); |
3fa5b8e0 | 507 | } |
4ce5ba5b | 508 | subsys_initcall(tps6507x_pmic_init); |
3fa5b8e0 | 509 | |
4ce5ba5b | 510 | static void __exit tps6507x_pmic_cleanup(void) |
3fa5b8e0 | 511 | { |
31dd6a26 | 512 | platform_driver_unregister(&tps6507x_pmic_driver); |
3fa5b8e0 | 513 | } |
4ce5ba5b | 514 | module_exit(tps6507x_pmic_cleanup); |
3fa5b8e0 AA |
515 | |
516 | MODULE_AUTHOR("Texas Instruments"); | |
517 | MODULE_DESCRIPTION("TPS6507x voltage regulator driver"); | |
9e108d33 | 518 | MODULE_LICENSE("GPL v2"); |
31dd6a26 | 519 | MODULE_ALIAS("platform:tps6507x-pmic"); |