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129eef96 EM |
1 | /* |
2 | * Regulators driver for Dialog Semiconductor DA903x | |
3 | * | |
4 | * Copyright (C) 2006-2008 Marvell International Ltd. | |
5 | * Copyright (C) 2008 Compulab Ltd. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/err.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/regulator/driver.h> | |
17 | #include <linux/regulator/machine.h> | |
18 | #include <linux/mfd/da903x.h> | |
19 | ||
20 | /* DA9030 Registers */ | |
21 | #define DA9030_INVAL (-1) | |
22 | #define DA9030_LDO1011 (0x10) | |
23 | #define DA9030_LDO15 (0x11) | |
24 | #define DA9030_LDO1416 (0x12) | |
25 | #define DA9030_LDO1819 (0x13) | |
26 | #define DA9030_LDO17 (0x14) | |
27 | #define DA9030_BUCK2DVM1 (0x15) | |
28 | #define DA9030_BUCK2DVM2 (0x16) | |
29 | #define DA9030_RCTL11 (0x17) | |
30 | #define DA9030_RCTL21 (0x18) | |
31 | #define DA9030_LDO1 (0x90) | |
32 | #define DA9030_LDO23 (0x91) | |
33 | #define DA9030_LDO45 (0x92) | |
34 | #define DA9030_LDO6 (0x93) | |
35 | #define DA9030_LDO78 (0x94) | |
36 | #define DA9030_LDO912 (0x95) | |
37 | #define DA9030_BUCK (0x96) | |
38 | #define DA9030_RCTL12 (0x97) | |
39 | #define DA9030_RCTL22 (0x98) | |
40 | #define DA9030_LDO_UNLOCK (0xa0) | |
41 | #define DA9030_LDO_UNLOCK_MASK (0xe0) | |
42 | #define DA9034_OVER1 (0x10) | |
43 | ||
44 | /* DA9034 Registers */ | |
45 | #define DA9034_INVAL (-1) | |
46 | #define DA9034_OVER2 (0x11) | |
47 | #define DA9034_OVER3 (0x12) | |
48 | #define DA9034_LDO643 (0x13) | |
49 | #define DA9034_LDO987 (0x14) | |
50 | #define DA9034_LDO1110 (0x15) | |
51 | #define DA9034_LDO1312 (0x16) | |
52 | #define DA9034_LDO1514 (0x17) | |
53 | #define DA9034_VCC1 (0x20) | |
54 | #define DA9034_ADTV1 (0x23) | |
55 | #define DA9034_ADTV2 (0x24) | |
56 | #define DA9034_AVRC (0x25) | |
57 | #define DA9034_CDTV1 (0x26) | |
58 | #define DA9034_CDTV2 (0x27) | |
59 | #define DA9034_CVRC (0x28) | |
60 | #define DA9034_SDTV1 (0x29) | |
61 | #define DA9034_SDTV2 (0x2a) | |
62 | #define DA9034_SVRC (0x2b) | |
63 | #define DA9034_MDTV1 (0x32) | |
64 | #define DA9034_MDTV2 (0x33) | |
65 | #define DA9034_MVRC (0x34) | |
66 | ||
67 | struct da903x_regulator_info { | |
68 | struct regulator_desc desc; | |
69 | ||
70 | int min_uV; | |
71 | int max_uV; | |
72 | int step_uV; | |
73 | int vol_reg; | |
74 | int vol_shift; | |
75 | int vol_nbits; | |
76 | int update_reg; | |
77 | int update_bit; | |
78 | int enable_reg; | |
79 | int enable_bit; | |
80 | }; | |
81 | ||
1841c0f2 JC |
82 | static inline struct device *to_da903x_dev(struct regulator_dev *rdev) |
83 | { | |
84 | return rdev_get_dev(rdev)->parent->parent; | |
85 | } | |
86 | ||
129eef96 EM |
87 | static inline int check_range(struct da903x_regulator_info *info, |
88 | int min_uV, int max_uV) | |
89 | { | |
90 | if (min_uV < info->min_uV || min_uV > info->max_uV) | |
91 | return -EINVAL; | |
92 | ||
93 | return 0; | |
94 | } | |
95 | ||
96 | /* DA9030/DA9034 common operations */ | |
97 | static int da903x_set_ldo_voltage(struct regulator_dev *rdev, | |
98 | int min_uV, int max_uV) | |
99 | { | |
100 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 101 | struct device *da9034_dev = to_da903x_dev(rdev); |
129eef96 EM |
102 | uint8_t val, mask; |
103 | ||
104 | if (check_range(info, min_uV, max_uV)) { | |
471d8d49 | 105 | pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV); |
129eef96 EM |
106 | return -EINVAL; |
107 | } | |
108 | ||
109 | val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV; | |
110 | val <<= info->vol_shift; | |
111 | mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; | |
112 | ||
113 | return da903x_update(da9034_dev, info->vol_reg, val, mask); | |
114 | } | |
115 | ||
116 | static int da903x_get_voltage(struct regulator_dev *rdev) | |
117 | { | |
118 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 119 | struct device *da9034_dev = to_da903x_dev(rdev); |
129eef96 EM |
120 | uint8_t val, mask; |
121 | int ret; | |
122 | ||
123 | ret = da903x_read(da9034_dev, info->vol_reg, &val); | |
124 | if (ret) | |
125 | return ret; | |
126 | ||
127 | mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; | |
128 | val = (val & mask) >> info->vol_shift; | |
129 | ||
130 | return info->min_uV + info->step_uV * val; | |
131 | } | |
132 | ||
133 | static int da903x_enable(struct regulator_dev *rdev) | |
134 | { | |
135 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 136 | struct device *da9034_dev = to_da903x_dev(rdev); |
129eef96 EM |
137 | |
138 | return da903x_set_bits(da9034_dev, info->enable_reg, | |
139 | 1 << info->enable_bit); | |
140 | } | |
141 | ||
142 | static int da903x_disable(struct regulator_dev *rdev) | |
143 | { | |
144 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 145 | struct device *da9034_dev = to_da903x_dev(rdev); |
129eef96 EM |
146 | |
147 | return da903x_clr_bits(da9034_dev, info->enable_reg, | |
148 | 1 << info->enable_bit); | |
149 | } | |
150 | ||
151 | static int da903x_is_enabled(struct regulator_dev *rdev) | |
152 | { | |
153 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 154 | struct device *da9034_dev = to_da903x_dev(rdev); |
129eef96 EM |
155 | uint8_t reg_val; |
156 | int ret; | |
157 | ||
158 | ret = da903x_read(da9034_dev, info->enable_reg, ®_val); | |
159 | if (ret) | |
160 | return ret; | |
161 | ||
96186904 | 162 | return !!(reg_val & (1 << info->enable_bit)); |
129eef96 EM |
163 | } |
164 | ||
165 | /* DA9030 specific operations */ | |
166 | static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev, | |
167 | int min_uV, int max_uV) | |
168 | { | |
169 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 170 | struct device *da903x_dev = to_da903x_dev(rdev); |
129eef96 EM |
171 | uint8_t val, mask; |
172 | int ret; | |
173 | ||
174 | if (check_range(info, min_uV, max_uV)) { | |
471d8d49 | 175 | pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV); |
129eef96 EM |
176 | return -EINVAL; |
177 | } | |
178 | ||
179 | val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV; | |
180 | val <<= info->vol_shift; | |
181 | mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; | |
182 | val |= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */ | |
183 | mask |= DA9030_LDO_UNLOCK_MASK; | |
184 | ||
185 | /* write twice */ | |
186 | ret = da903x_update(da903x_dev, info->vol_reg, val, mask); | |
187 | if (ret) | |
188 | return ret; | |
189 | ||
190 | return da903x_update(da903x_dev, info->vol_reg, val, mask); | |
191 | } | |
192 | ||
193 | static int da9030_set_ldo14_voltage(struct regulator_dev *rdev, | |
194 | int min_uV, int max_uV) | |
195 | { | |
196 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 197 | struct device *da903x_dev = to_da903x_dev(rdev); |
129eef96 EM |
198 | uint8_t val, mask; |
199 | int thresh; | |
200 | ||
201 | if (check_range(info, min_uV, max_uV)) { | |
471d8d49 | 202 | pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV); |
129eef96 EM |
203 | return -EINVAL; |
204 | } | |
205 | ||
206 | thresh = (info->max_uV + info->min_uV) / 2; | |
207 | if (min_uV < thresh) { | |
208 | val = (thresh - min_uV + info->step_uV - 1) / info->step_uV; | |
209 | val |= 0x4; | |
210 | } else { | |
211 | val = (min_uV - thresh + info->step_uV - 1) / info->step_uV; | |
212 | } | |
213 | ||
214 | val <<= info->vol_shift; | |
215 | mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; | |
216 | ||
217 | return da903x_update(da903x_dev, info->vol_reg, val, mask); | |
218 | } | |
219 | ||
220 | static int da9030_get_ldo14_voltage(struct regulator_dev *rdev) | |
221 | { | |
222 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 223 | struct device *da903x_dev = to_da903x_dev(rdev); |
129eef96 EM |
224 | uint8_t val, mask; |
225 | int ret; | |
226 | ||
227 | ret = da903x_read(da903x_dev, info->vol_reg, &val); | |
228 | if (ret) | |
229 | return ret; | |
230 | ||
231 | mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; | |
232 | val = (val & mask) >> info->vol_shift; | |
233 | ||
234 | if (val & 0x4) | |
235 | return info->min_uV + info->step_uV * (3 - (val & ~0x4)); | |
236 | else | |
237 | return (info->max_uV + info->min_uV) / 2 + | |
238 | info->step_uV * (val & ~0x4); | |
239 | } | |
240 | ||
241 | /* DA9034 specific operations */ | |
242 | static int da9034_set_dvc_voltage(struct regulator_dev *rdev, | |
243 | int min_uV, int max_uV) | |
244 | { | |
245 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 246 | struct device *da9034_dev = to_da903x_dev(rdev); |
129eef96 EM |
247 | uint8_t val, mask; |
248 | int ret; | |
249 | ||
250 | if (check_range(info, min_uV, max_uV)) { | |
471d8d49 | 251 | pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV); |
129eef96 EM |
252 | return -EINVAL; |
253 | } | |
254 | ||
255 | val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV; | |
256 | val <<= info->vol_shift; | |
257 | mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; | |
258 | ||
259 | ret = da903x_update(da9034_dev, info->vol_reg, val, mask); | |
260 | if (ret) | |
261 | return ret; | |
262 | ||
263 | ret = da903x_set_bits(da9034_dev, info->update_reg, | |
264 | 1 << info->update_bit); | |
265 | return ret; | |
266 | } | |
267 | ||
268 | static int da9034_set_ldo12_voltage(struct regulator_dev *rdev, | |
269 | int min_uV, int max_uV) | |
270 | { | |
271 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 272 | struct device *da9034_dev = to_da903x_dev(rdev); |
129eef96 EM |
273 | uint8_t val, mask; |
274 | ||
275 | if (check_range(info, min_uV, max_uV)) { | |
471d8d49 | 276 | pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV); |
129eef96 EM |
277 | return -EINVAL; |
278 | } | |
279 | ||
280 | val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV; | |
281 | val = (val > 7 || val < 20) ? 8 : val - 12; | |
282 | val <<= info->vol_shift; | |
283 | mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; | |
284 | ||
285 | return da903x_update(da9034_dev, info->vol_reg, val, mask); | |
286 | } | |
287 | ||
288 | static int da9034_get_ldo12_voltage(struct regulator_dev *rdev) | |
289 | { | |
290 | struct da903x_regulator_info *info = rdev_get_drvdata(rdev); | |
1841c0f2 | 291 | struct device *da9034_dev = to_da903x_dev(rdev); |
129eef96 EM |
292 | uint8_t val, mask; |
293 | int ret; | |
294 | ||
295 | ret = da903x_read(da9034_dev, info->vol_reg, &val); | |
296 | if (ret) | |
297 | return ret; | |
298 | ||
299 | mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; | |
300 | val = (val & mask) >> info->vol_shift; | |
301 | ||
302 | if (val >= 8) | |
303 | return 2700000 + info->step_uV * (val - 8); | |
304 | ||
305 | return info->min_uV + info->step_uV * val; | |
306 | } | |
307 | ||
308 | static struct regulator_ops da903x_regulator_ldo_ops = { | |
309 | .set_voltage = da903x_set_ldo_voltage, | |
310 | .get_voltage = da903x_get_voltage, | |
311 | .enable = da903x_enable, | |
312 | .disable = da903x_disable, | |
313 | .is_enabled = da903x_is_enabled, | |
314 | }; | |
315 | ||
316 | /* NOTE: this is dedicated for the insane DA9030 LDO14 */ | |
317 | static struct regulator_ops da9030_regulator_ldo14_ops = { | |
318 | .set_voltage = da9030_set_ldo14_voltage, | |
319 | .get_voltage = da9030_get_ldo14_voltage, | |
320 | .enable = da903x_enable, | |
321 | .disable = da903x_disable, | |
322 | .is_enabled = da903x_is_enabled, | |
323 | }; | |
324 | ||
325 | /* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks */ | |
326 | static struct regulator_ops da9030_regulator_ldo1_15_ops = { | |
327 | .set_voltage = da9030_set_ldo1_15_voltage, | |
328 | .get_voltage = da903x_get_voltage, | |
329 | .enable = da903x_enable, | |
330 | .disable = da903x_disable, | |
331 | .is_enabled = da903x_is_enabled, | |
332 | }; | |
333 | ||
334 | static struct regulator_ops da9034_regulator_dvc_ops = { | |
335 | .set_voltage = da9034_set_dvc_voltage, | |
336 | .get_voltage = da903x_get_voltage, | |
337 | .enable = da903x_enable, | |
338 | .disable = da903x_disable, | |
339 | .is_enabled = da903x_is_enabled, | |
340 | }; | |
341 | ||
342 | /* NOTE: this is dedicated for the insane LDO12 */ | |
343 | static struct regulator_ops da9034_regulator_ldo12_ops = { | |
344 | .set_voltage = da9034_set_ldo12_voltage, | |
345 | .get_voltage = da9034_get_ldo12_voltage, | |
346 | .enable = da903x_enable, | |
347 | .disable = da903x_disable, | |
348 | .is_enabled = da903x_is_enabled, | |
349 | }; | |
350 | ||
351 | #define DA903x_LDO(_pmic, _id, min, max, step, vreg, shift, nbits, ereg, ebit) \ | |
352 | { \ | |
353 | .desc = { \ | |
354 | .name = "LDO" #_id, \ | |
355 | .ops = &da903x_regulator_ldo_ops, \ | |
356 | .type = REGULATOR_VOLTAGE, \ | |
357 | .id = _pmic##_ID_LDO##_id, \ | |
358 | .owner = THIS_MODULE, \ | |
359 | }, \ | |
360 | .min_uV = (min) * 1000, \ | |
361 | .max_uV = (max) * 1000, \ | |
362 | .step_uV = (step) * 1000, \ | |
363 | .vol_reg = _pmic##_##vreg, \ | |
364 | .vol_shift = (shift), \ | |
365 | .vol_nbits = (nbits), \ | |
366 | .enable_reg = _pmic##_##ereg, \ | |
367 | .enable_bit = (ebit), \ | |
368 | } | |
369 | ||
370 | #define DA9034_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \ | |
371 | { \ | |
372 | .desc = { \ | |
373 | .name = #_id, \ | |
374 | .ops = &da9034_regulator_dvc_ops, \ | |
375 | .type = REGULATOR_VOLTAGE, \ | |
376 | .id = DA9034_ID_##_id, \ | |
377 | .owner = THIS_MODULE, \ | |
378 | }, \ | |
379 | .min_uV = (min) * 1000, \ | |
380 | .max_uV = (max) * 1000, \ | |
381 | .step_uV = (step) * 1000, \ | |
382 | .vol_reg = DA9034_##vreg, \ | |
383 | .vol_shift = (0), \ | |
384 | .vol_nbits = (nbits), \ | |
385 | .update_reg = DA9034_##ureg, \ | |
386 | .update_bit = (ubit), \ | |
387 | .enable_reg = DA9034_##ereg, \ | |
388 | .enable_bit = (ebit), \ | |
389 | } | |
390 | ||
391 | #define DA9034_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \ | |
392 | DA903x_LDO(DA9034, _id, min, max, step, vreg, shift, nbits, ereg, ebit) | |
393 | ||
394 | #define DA9030_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \ | |
395 | DA903x_LDO(DA9030, _id, min, max, step, vreg, shift, nbits, ereg, ebit) | |
396 | ||
397 | static struct da903x_regulator_info da903x_regulator_info[] = { | |
398 | /* DA9030 */ | |
399 | DA9030_LDO( 1, 1200, 3200, 100, LDO1, 0, 5, RCTL12, 1), | |
400 | DA9030_LDO( 2, 1800, 3200, 100, LDO23, 0, 4, RCTL12, 2), | |
401 | DA9030_LDO( 3, 1800, 3200, 100, LDO23, 4, 4, RCTL12, 3), | |
402 | DA9030_LDO( 4, 1800, 3200, 100, LDO45, 0, 4, RCTL12, 4), | |
403 | DA9030_LDO( 5, 1800, 3200, 100, LDO45, 4, 4, RCTL12, 5), | |
404 | DA9030_LDO( 6, 1800, 3200, 100, LDO6, 0, 4, RCTL12, 6), | |
405 | DA9030_LDO( 7, 1800, 3200, 100, LDO78, 0, 4, RCTL12, 7), | |
406 | DA9030_LDO( 8, 1800, 3200, 100, LDO78, 4, 4, RCTL22, 0), | |
407 | DA9030_LDO( 9, 1800, 3200, 100, LDO912, 0, 4, RCTL22, 1), | |
408 | DA9030_LDO(10, 1800, 3200, 100, LDO1011, 0, 4, RCTL22, 2), | |
409 | DA9030_LDO(11, 1800, 3200, 100, LDO1011, 4, 4, RCTL22, 3), | |
410 | DA9030_LDO(12, 1800, 3200, 100, LDO912, 4, 4, RCTL22, 4), | |
411 | DA9030_LDO(14, 2760, 2940, 30, LDO1416, 0, 3, RCTL11, 4), | |
412 | DA9030_LDO(15, 1100, 2650, 50, LDO15, 0, 5, RCTL11, 5), | |
413 | DA9030_LDO(16, 1100, 2650, 50, LDO1416, 3, 5, RCTL11, 6), | |
414 | DA9030_LDO(17, 1800, 3200, 100, LDO17, 0, 4, RCTL11, 7), | |
415 | DA9030_LDO(18, 1800, 3200, 100, LDO1819, 0, 4, RCTL21, 2), | |
416 | DA9030_LDO(19, 1800, 3200, 100, LDO1819, 4, 4, RCTL21, 1), | |
417 | DA9030_LDO(13, 2100, 2100, 0, INVAL, 0, 0, RCTL11, 3), /* fixed @2.1V */ | |
418 | ||
419 | /* DA9034 */ | |
420 | DA9034_DVC(BUCK1, 725, 1500, 25, ADTV1, 5, VCC1, 0, OVER1, 0), | |
421 | DA9034_DVC(BUCK2, 725, 1500, 25, CDTV1, 5, VCC1, 2, OVER1, 1), | |
422 | DA9034_DVC(LDO2, 725, 1500, 25, SDTV1, 5, VCC1, 4, OVER1, 2), | |
423 | DA9034_DVC(LDO1, 1700, 2075, 25, MDTV1, 4, VCC1, 6, OVER3, 4), | |
424 | ||
425 | DA9034_LDO( 3, 1800, 3300, 100, LDO643, 0, 4, OVER3, 5), | |
426 | DA9034_LDO( 4, 1800, 2900,1100, LDO643, 4, 1, OVER3, 6), | |
427 | DA9034_LDO( 6, 2500, 2850, 50, LDO643, 5, 3, OVER2, 0), | |
428 | DA9034_LDO( 7, 2700, 3050, 50, LDO987, 0, 3, OVER2, 1), | |
429 | DA9034_LDO( 8, 2700, 2850, 50, LDO987, 3, 2, OVER2, 2), | |
430 | DA9034_LDO( 9, 2700, 3050, 50, LDO987, 5, 3, OVER2, 3), | |
431 | DA9034_LDO(10, 2700, 3050, 50, LDO1110, 0, 3, OVER2, 4), | |
432 | DA9034_LDO(11, 1800, 3300, 100, LDO1110, 4, 4, OVER2, 5), | |
433 | DA9034_LDO(12, 1700, 3050, 50, LDO1312, 0, 4, OVER3, 6), | |
434 | DA9034_LDO(13, 1800, 3300, 100, LDO1312, 4, 4, OVER2, 7), | |
435 | DA9034_LDO(14, 1800, 3300, 100, LDO1514, 0, 4, OVER3, 0), | |
436 | DA9034_LDO(15, 1800, 3300, 100, LDO1514, 4, 4, OVER3, 1), | |
437 | DA9034_LDO(5, 3100, 3100, 0, INVAL, 0, 0, OVER3, 7), /* fixed @3.1V */ | |
438 | }; | |
439 | ||
440 | static inline struct da903x_regulator_info *find_regulator_info(int id) | |
441 | { | |
442 | struct da903x_regulator_info *ri; | |
443 | int i; | |
444 | ||
445 | for (i = 0; i < ARRAY_SIZE(da903x_regulator_info); i++) { | |
446 | ri = &da903x_regulator_info[i]; | |
447 | if (ri->desc.id == id) | |
448 | return ri; | |
449 | } | |
450 | return NULL; | |
451 | } | |
452 | ||
453 | static int __devinit da903x_regulator_probe(struct platform_device *pdev) | |
454 | { | |
455 | struct da903x_regulator_info *ri = NULL; | |
456 | struct regulator_dev *rdev; | |
457 | ||
458 | ri = find_regulator_info(pdev->id); | |
459 | if (ri == NULL) { | |
460 | dev_err(&pdev->dev, "invalid regulator ID specified\n"); | |
461 | return -EINVAL; | |
462 | } | |
463 | ||
464 | /* Workaround for the weird LDO12 voltage setting */ | |
465 | if (ri->desc.id == DA9034_ID_LDO12) | |
466 | ri->desc.ops = &da9034_regulator_ldo12_ops; | |
467 | ||
468 | if (ri->desc.id == DA9030_ID_LDO14) | |
469 | ri->desc.ops = &da9030_regulator_ldo14_ops; | |
470 | ||
471 | if (ri->desc.id == DA9030_ID_LDO1 || ri->desc.id == DA9030_ID_LDO15) | |
472 | ri->desc.ops = &da9030_regulator_ldo1_15_ops; | |
473 | ||
0527100f MB |
474 | rdev = regulator_register(&ri->desc, &pdev->dev, |
475 | pdev->dev.platform_data, ri); | |
129eef96 EM |
476 | if (IS_ERR(rdev)) { |
477 | dev_err(&pdev->dev, "failed to register regulator %s\n", | |
478 | ri->desc.name); | |
479 | return PTR_ERR(rdev); | |
480 | } | |
481 | ||
482 | platform_set_drvdata(pdev, rdev); | |
483 | return 0; | |
484 | } | |
485 | ||
486 | static int __devexit da903x_regulator_remove(struct platform_device *pdev) | |
487 | { | |
488 | struct regulator_dev *rdev = platform_get_drvdata(pdev); | |
489 | ||
490 | regulator_unregister(rdev); | |
491 | return 0; | |
492 | } | |
493 | ||
494 | static struct platform_driver da903x_regulator_driver = { | |
495 | .driver = { | |
496 | .name = "da903x-regulator", | |
497 | .owner = THIS_MODULE, | |
498 | }, | |
499 | .probe = da903x_regulator_probe, | |
500 | .remove = da903x_regulator_remove, | |
501 | }; | |
502 | ||
503 | static int __init da903x_regulator_init(void) | |
504 | { | |
505 | return platform_driver_register(&da903x_regulator_driver); | |
506 | } | |
507 | module_init(da903x_regulator_init); | |
508 | ||
509 | static void __exit da903x_regulator_exit(void) | |
510 | { | |
511 | platform_driver_unregister(&da903x_regulator_driver); | |
512 | } | |
513 | module_exit(da903x_regulator_exit); | |
514 | ||
515 | MODULE_LICENSE("GPL"); | |
516 | MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>" | |
517 | "Mike Rapoport <mike@compulab.co.il>"); | |
518 | MODULE_DESCRIPTION("Regulator Driver for Dialog Semiconductor DA903X PMIC"); | |
519 | MODULE_ALIAS("platform:da903x-regulator"); |