Commit | Line | Data |
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c789ca20 SI |
1 | /* |
2 | * Copyright (C) ST-Ericsson SA 2010 | |
3 | * | |
4 | * License Terms: GNU General Public License v2 | |
5 | * | |
e1159e6d BJ |
6 | * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson |
7 | * Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson | |
c789ca20 SI |
8 | * |
9 | * AB8500 peripheral regulators | |
10 | * | |
e1159e6d | 11 | * AB8500 supports the following regulators: |
ea05ef31 | 12 | * VAUX1/2/3, VINTCORE, VTVOUT, VUSB, VAUDIO, VAMIC1/2, VDMIC, VANA |
c789ca20 SI |
13 | */ |
14 | #include <linux/init.h> | |
15 | #include <linux/kernel.h> | |
65602c32 | 16 | #include <linux/module.h> |
c789ca20 SI |
17 | #include <linux/err.h> |
18 | #include <linux/platform_device.h> | |
19 | #include <linux/mfd/ab8500.h> | |
47c16975 | 20 | #include <linux/mfd/abx500.h> |
c789ca20 SI |
21 | #include <linux/regulator/driver.h> |
22 | #include <linux/regulator/machine.h> | |
23 | #include <linux/regulator/ab8500.h> | |
24 | ||
25 | /** | |
26 | * struct ab8500_regulator_info - ab8500 regulator information | |
e1159e6d | 27 | * @dev: device pointer |
c789ca20 | 28 | * @desc: regulator description |
c789ca20 SI |
29 | * @regulator_dev: regulator device |
30 | * @max_uV: maximum voltage (for variable voltage supplies) | |
31 | * @min_uV: minimum voltage (for variable voltage supplies) | |
32 | * @fixed_uV: typical voltage (for fixed voltage supplies) | |
47c16975 | 33 | * @update_bank: bank to control on/off |
c789ca20 | 34 | * @update_reg: register to control on/off |
e1159e6d BJ |
35 | * @update_mask: mask to enable/disable regulator |
36 | * @update_val_enable: bits to enable the regulator in normal (high power) mode | |
47c16975 | 37 | * @voltage_bank: bank to control regulator voltage |
c789ca20 SI |
38 | * @voltage_reg: register to control regulator voltage |
39 | * @voltage_mask: mask to control regulator voltage | |
e1159e6d | 40 | * @voltages: supported voltage table |
c789ca20 | 41 | * @voltages_len: number of supported voltages for the regulator |
42ab616a | 42 | * @delay: startup/set voltage delay in us |
c789ca20 SI |
43 | */ |
44 | struct ab8500_regulator_info { | |
45 | struct device *dev; | |
46 | struct regulator_desc desc; | |
c789ca20 SI |
47 | struct regulator_dev *regulator; |
48 | int max_uV; | |
49 | int min_uV; | |
50 | int fixed_uV; | |
47c16975 MW |
51 | u8 update_bank; |
52 | u8 update_reg; | |
e1159e6d BJ |
53 | u8 update_mask; |
54 | u8 update_val_enable; | |
47c16975 MW |
55 | u8 voltage_bank; |
56 | u8 voltage_reg; | |
57 | u8 voltage_mask; | |
e1159e6d | 58 | int const *voltages; |
c789ca20 | 59 | int voltages_len; |
42ab616a | 60 | unsigned int delay; |
c789ca20 SI |
61 | }; |
62 | ||
63 | /* voltage tables for the vauxn/vintcore supplies */ | |
64 | static const int ldo_vauxn_voltages[] = { | |
65 | 1100000, | |
66 | 1200000, | |
67 | 1300000, | |
68 | 1400000, | |
69 | 1500000, | |
70 | 1800000, | |
71 | 1850000, | |
72 | 1900000, | |
73 | 2500000, | |
74 | 2650000, | |
75 | 2700000, | |
76 | 2750000, | |
77 | 2800000, | |
78 | 2900000, | |
79 | 3000000, | |
80 | 3300000, | |
81 | }; | |
82 | ||
2b75151a BJ |
83 | static const int ldo_vaux3_voltages[] = { |
84 | 1200000, | |
85 | 1500000, | |
86 | 1800000, | |
87 | 2100000, | |
88 | 2500000, | |
89 | 2750000, | |
90 | 2790000, | |
91 | 2910000, | |
92 | }; | |
93 | ||
c789ca20 SI |
94 | static const int ldo_vintcore_voltages[] = { |
95 | 1200000, | |
96 | 1225000, | |
97 | 1250000, | |
98 | 1275000, | |
99 | 1300000, | |
100 | 1325000, | |
101 | 1350000, | |
102 | }; | |
103 | ||
104 | static int ab8500_regulator_enable(struct regulator_dev *rdev) | |
105 | { | |
fc24b426 | 106 | int ret; |
c789ca20 SI |
107 | struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); |
108 | ||
fc24b426 BJ |
109 | if (info == NULL) { |
110 | dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); | |
c789ca20 | 111 | return -EINVAL; |
fc24b426 | 112 | } |
c789ca20 | 113 | |
47c16975 | 114 | ret = abx500_mask_and_set_register_interruptible(info->dev, |
e1159e6d BJ |
115 | info->update_bank, info->update_reg, |
116 | info->update_mask, info->update_val_enable); | |
c789ca20 SI |
117 | if (ret < 0) |
118 | dev_err(rdev_get_dev(rdev), | |
119 | "couldn't set enable bits for regulator\n"); | |
09aefa12 BJ |
120 | |
121 | dev_vdbg(rdev_get_dev(rdev), | |
122 | "%s-enable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n", | |
123 | info->desc.name, info->update_bank, info->update_reg, | |
124 | info->update_mask, info->update_val_enable); | |
125 | ||
c789ca20 SI |
126 | return ret; |
127 | } | |
128 | ||
129 | static int ab8500_regulator_disable(struct regulator_dev *rdev) | |
130 | { | |
fc24b426 | 131 | int ret; |
c789ca20 SI |
132 | struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); |
133 | ||
fc24b426 BJ |
134 | if (info == NULL) { |
135 | dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); | |
c789ca20 | 136 | return -EINVAL; |
fc24b426 | 137 | } |
c789ca20 | 138 | |
47c16975 | 139 | ret = abx500_mask_and_set_register_interruptible(info->dev, |
e1159e6d BJ |
140 | info->update_bank, info->update_reg, |
141 | info->update_mask, 0x0); | |
c789ca20 SI |
142 | if (ret < 0) |
143 | dev_err(rdev_get_dev(rdev), | |
144 | "couldn't set disable bits for regulator\n"); | |
09aefa12 BJ |
145 | |
146 | dev_vdbg(rdev_get_dev(rdev), | |
147 | "%s-disable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n", | |
148 | info->desc.name, info->update_bank, info->update_reg, | |
149 | info->update_mask, 0x0); | |
150 | ||
c789ca20 SI |
151 | return ret; |
152 | } | |
153 | ||
154 | static int ab8500_regulator_is_enabled(struct regulator_dev *rdev) | |
155 | { | |
fc24b426 | 156 | int ret; |
c789ca20 | 157 | struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); |
09aefa12 | 158 | u8 regval; |
c789ca20 | 159 | |
fc24b426 BJ |
160 | if (info == NULL) { |
161 | dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); | |
c789ca20 | 162 | return -EINVAL; |
fc24b426 | 163 | } |
c789ca20 | 164 | |
47c16975 | 165 | ret = abx500_get_register_interruptible(info->dev, |
09aefa12 | 166 | info->update_bank, info->update_reg, ®val); |
c789ca20 SI |
167 | if (ret < 0) { |
168 | dev_err(rdev_get_dev(rdev), | |
169 | "couldn't read 0x%x register\n", info->update_reg); | |
170 | return ret; | |
171 | } | |
172 | ||
09aefa12 BJ |
173 | dev_vdbg(rdev_get_dev(rdev), |
174 | "%s-is_enabled (bank, reg, mask, value): 0x%x, 0x%x, 0x%x," | |
175 | " 0x%x\n", | |
176 | info->desc.name, info->update_bank, info->update_reg, | |
177 | info->update_mask, regval); | |
178 | ||
179 | if (regval & info->update_mask) | |
c789ca20 SI |
180 | return true; |
181 | else | |
182 | return false; | |
183 | } | |
184 | ||
185 | static int ab8500_list_voltage(struct regulator_dev *rdev, unsigned selector) | |
186 | { | |
c789ca20 SI |
187 | struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); |
188 | ||
fc24b426 BJ |
189 | if (info == NULL) { |
190 | dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); | |
c789ca20 | 191 | return -EINVAL; |
fc24b426 | 192 | } |
c789ca20 SI |
193 | |
194 | /* return the uV for the fixed regulators */ | |
195 | if (info->fixed_uV) | |
196 | return info->fixed_uV; | |
197 | ||
49990e6e | 198 | if (selector >= info->voltages_len) |
c789ca20 SI |
199 | return -EINVAL; |
200 | ||
e1159e6d | 201 | return info->voltages[selector]; |
c789ca20 SI |
202 | } |
203 | ||
204 | static int ab8500_regulator_get_voltage(struct regulator_dev *rdev) | |
205 | { | |
09aefa12 | 206 | int ret, val; |
c789ca20 | 207 | struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); |
09aefa12 | 208 | u8 regval; |
c789ca20 | 209 | |
fc24b426 BJ |
210 | if (info == NULL) { |
211 | dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); | |
c789ca20 | 212 | return -EINVAL; |
fc24b426 | 213 | } |
c789ca20 | 214 | |
09aefa12 BJ |
215 | ret = abx500_get_register_interruptible(info->dev, |
216 | info->voltage_bank, info->voltage_reg, ®val); | |
c789ca20 SI |
217 | if (ret < 0) { |
218 | dev_err(rdev_get_dev(rdev), | |
219 | "couldn't read voltage reg for regulator\n"); | |
220 | return ret; | |
221 | } | |
222 | ||
09aefa12 BJ |
223 | dev_vdbg(rdev_get_dev(rdev), |
224 | "%s-get_voltage (bank, reg, mask, value): 0x%x, 0x%x, 0x%x," | |
225 | " 0x%x\n", | |
226 | info->desc.name, info->voltage_bank, info->voltage_reg, | |
227 | info->voltage_mask, regval); | |
228 | ||
c789ca20 | 229 | /* vintcore has a different layout */ |
09aefa12 | 230 | val = regval & info->voltage_mask; |
fc24b426 | 231 | if (info->desc.id == AB8500_LDO_INTCORE) |
09aefa12 | 232 | ret = info->voltages[val >> 0x3]; |
c789ca20 | 233 | else |
09aefa12 | 234 | ret = info->voltages[val]; |
c789ca20 SI |
235 | |
236 | return ret; | |
237 | } | |
238 | ||
239 | static int ab8500_get_best_voltage_index(struct regulator_dev *rdev, | |
240 | int min_uV, int max_uV) | |
241 | { | |
242 | struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); | |
243 | int i; | |
244 | ||
245 | /* check the supported voltage */ | |
246 | for (i = 0; i < info->voltages_len; i++) { | |
e1159e6d BJ |
247 | if ((info->voltages[i] >= min_uV) && |
248 | (info->voltages[i] <= max_uV)) | |
c789ca20 SI |
249 | return i; |
250 | } | |
251 | ||
252 | return -EINVAL; | |
253 | } | |
254 | ||
255 | static int ab8500_regulator_set_voltage(struct regulator_dev *rdev, | |
3a93f2a9 MB |
256 | int min_uV, int max_uV, |
257 | unsigned *selector) | |
c789ca20 | 258 | { |
fc24b426 | 259 | int ret; |
c789ca20 | 260 | struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); |
09aefa12 | 261 | u8 regval; |
c789ca20 | 262 | |
fc24b426 BJ |
263 | if (info == NULL) { |
264 | dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); | |
c789ca20 | 265 | return -EINVAL; |
fc24b426 | 266 | } |
c789ca20 SI |
267 | |
268 | /* get the appropriate voltages within the range */ | |
269 | ret = ab8500_get_best_voltage_index(rdev, min_uV, max_uV); | |
270 | if (ret < 0) { | |
271 | dev_err(rdev_get_dev(rdev), | |
272 | "couldn't get best voltage for regulator\n"); | |
273 | return ret; | |
274 | } | |
275 | ||
3a93f2a9 MB |
276 | *selector = ret; |
277 | ||
c789ca20 | 278 | /* set the registers for the request */ |
09aefa12 | 279 | regval = (u8)ret; |
47c16975 | 280 | ret = abx500_mask_and_set_register_interruptible(info->dev, |
09aefa12 BJ |
281 | info->voltage_bank, info->voltage_reg, |
282 | info->voltage_mask, regval); | |
c789ca20 SI |
283 | if (ret < 0) |
284 | dev_err(rdev_get_dev(rdev), | |
285 | "couldn't set voltage reg for regulator\n"); | |
286 | ||
09aefa12 BJ |
287 | dev_vdbg(rdev_get_dev(rdev), |
288 | "%s-set_voltage (bank, reg, mask, value): 0x%x, 0x%x, 0x%x," | |
289 | " 0x%x\n", | |
290 | info->desc.name, info->voltage_bank, info->voltage_reg, | |
291 | info->voltage_mask, regval); | |
292 | ||
c789ca20 SI |
293 | return ret; |
294 | } | |
295 | ||
42ab616a LW |
296 | static int ab8500_regulator_enable_time(struct regulator_dev *rdev) |
297 | { | |
298 | struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); | |
299 | ||
300 | return info->delay; | |
301 | } | |
302 | ||
303 | static int ab8500_regulator_set_voltage_time_sel(struct regulator_dev *rdev, | |
304 | unsigned int old_sel, | |
305 | unsigned int new_sel) | |
306 | { | |
307 | struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); | |
308 | int ret; | |
309 | ||
310 | /* If the regulator isn't on, it won't take time here */ | |
311 | ret = ab8500_regulator_is_enabled(rdev); | |
312 | if (ret < 0) | |
313 | return ret; | |
314 | if (!ret) | |
315 | return 0; | |
316 | return info->delay; | |
317 | } | |
318 | ||
c789ca20 SI |
319 | static struct regulator_ops ab8500_regulator_ops = { |
320 | .enable = ab8500_regulator_enable, | |
321 | .disable = ab8500_regulator_disable, | |
322 | .is_enabled = ab8500_regulator_is_enabled, | |
323 | .get_voltage = ab8500_regulator_get_voltage, | |
324 | .set_voltage = ab8500_regulator_set_voltage, | |
325 | .list_voltage = ab8500_list_voltage, | |
42ab616a LW |
326 | .enable_time = ab8500_regulator_enable_time, |
327 | .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel, | |
c789ca20 SI |
328 | }; |
329 | ||
330 | static int ab8500_fixed_get_voltage(struct regulator_dev *rdev) | |
331 | { | |
c789ca20 SI |
332 | struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); |
333 | ||
fc24b426 BJ |
334 | if (info == NULL) { |
335 | dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); | |
c789ca20 | 336 | return -EINVAL; |
fc24b426 | 337 | } |
c789ca20 SI |
338 | |
339 | return info->fixed_uV; | |
340 | } | |
341 | ||
6909b452 | 342 | static struct regulator_ops ab8500_regulator_fixed_ops = { |
c789ca20 SI |
343 | .enable = ab8500_regulator_enable, |
344 | .disable = ab8500_regulator_disable, | |
345 | .is_enabled = ab8500_regulator_is_enabled, | |
346 | .get_voltage = ab8500_fixed_get_voltage, | |
347 | .list_voltage = ab8500_list_voltage, | |
42ab616a LW |
348 | .enable_time = ab8500_regulator_enable_time, |
349 | .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel, | |
c789ca20 SI |
350 | }; |
351 | ||
6909b452 BJ |
352 | static struct ab8500_regulator_info |
353 | ab8500_regulator_info[AB8500_NUM_REGULATORS] = { | |
c789ca20 | 354 | /* |
e1159e6d BJ |
355 | * Variable Voltage Regulators |
356 | * name, min mV, max mV, | |
357 | * update bank, reg, mask, enable val | |
358 | * volt bank, reg, mask, table, table length | |
c789ca20 | 359 | */ |
6909b452 BJ |
360 | [AB8500_LDO_AUX1] = { |
361 | .desc = { | |
362 | .name = "LDO-AUX1", | |
363 | .ops = &ab8500_regulator_ops, | |
364 | .type = REGULATOR_VOLTAGE, | |
365 | .id = AB8500_LDO_AUX1, | |
366 | .owner = THIS_MODULE, | |
367 | .n_voltages = ARRAY_SIZE(ldo_vauxn_voltages), | |
368 | }, | |
369 | .min_uV = 1100000, | |
370 | .max_uV = 3300000, | |
371 | .update_bank = 0x04, | |
372 | .update_reg = 0x09, | |
373 | .update_mask = 0x03, | |
374 | .update_val_enable = 0x01, | |
375 | .voltage_bank = 0x04, | |
376 | .voltage_reg = 0x1f, | |
377 | .voltage_mask = 0x0f, | |
378 | .voltages = ldo_vauxn_voltages, | |
379 | .voltages_len = ARRAY_SIZE(ldo_vauxn_voltages), | |
380 | }, | |
381 | [AB8500_LDO_AUX2] = { | |
382 | .desc = { | |
383 | .name = "LDO-AUX2", | |
384 | .ops = &ab8500_regulator_ops, | |
385 | .type = REGULATOR_VOLTAGE, | |
386 | .id = AB8500_LDO_AUX2, | |
387 | .owner = THIS_MODULE, | |
388 | .n_voltages = ARRAY_SIZE(ldo_vauxn_voltages), | |
389 | }, | |
390 | .min_uV = 1100000, | |
391 | .max_uV = 3300000, | |
392 | .update_bank = 0x04, | |
393 | .update_reg = 0x09, | |
394 | .update_mask = 0x0c, | |
395 | .update_val_enable = 0x04, | |
396 | .voltage_bank = 0x04, | |
397 | .voltage_reg = 0x20, | |
398 | .voltage_mask = 0x0f, | |
399 | .voltages = ldo_vauxn_voltages, | |
400 | .voltages_len = ARRAY_SIZE(ldo_vauxn_voltages), | |
401 | }, | |
402 | [AB8500_LDO_AUX3] = { | |
403 | .desc = { | |
404 | .name = "LDO-AUX3", | |
405 | .ops = &ab8500_regulator_ops, | |
406 | .type = REGULATOR_VOLTAGE, | |
407 | .id = AB8500_LDO_AUX3, | |
408 | .owner = THIS_MODULE, | |
409 | .n_voltages = ARRAY_SIZE(ldo_vaux3_voltages), | |
410 | }, | |
411 | .min_uV = 1100000, | |
412 | .max_uV = 3300000, | |
413 | .update_bank = 0x04, | |
414 | .update_reg = 0x0a, | |
415 | .update_mask = 0x03, | |
416 | .update_val_enable = 0x01, | |
417 | .voltage_bank = 0x04, | |
418 | .voltage_reg = 0x21, | |
419 | .voltage_mask = 0x07, | |
420 | .voltages = ldo_vaux3_voltages, | |
421 | .voltages_len = ARRAY_SIZE(ldo_vaux3_voltages), | |
422 | }, | |
423 | [AB8500_LDO_INTCORE] = { | |
424 | .desc = { | |
425 | .name = "LDO-INTCORE", | |
426 | .ops = &ab8500_regulator_ops, | |
427 | .type = REGULATOR_VOLTAGE, | |
428 | .id = AB8500_LDO_INTCORE, | |
429 | .owner = THIS_MODULE, | |
430 | .n_voltages = ARRAY_SIZE(ldo_vintcore_voltages), | |
431 | }, | |
432 | .min_uV = 1100000, | |
433 | .max_uV = 3300000, | |
434 | .update_bank = 0x03, | |
435 | .update_reg = 0x80, | |
436 | .update_mask = 0x44, | |
437 | .update_val_enable = 0x04, | |
438 | .voltage_bank = 0x03, | |
439 | .voltage_reg = 0x80, | |
440 | .voltage_mask = 0x38, | |
441 | .voltages = ldo_vintcore_voltages, | |
442 | .voltages_len = ARRAY_SIZE(ldo_vintcore_voltages), | |
443 | }, | |
c789ca20 SI |
444 | |
445 | /* | |
e1159e6d BJ |
446 | * Fixed Voltage Regulators |
447 | * name, fixed mV, | |
448 | * update bank, reg, mask, enable val | |
c789ca20 | 449 | */ |
6909b452 BJ |
450 | [AB8500_LDO_TVOUT] = { |
451 | .desc = { | |
452 | .name = "LDO-TVOUT", | |
453 | .ops = &ab8500_regulator_fixed_ops, | |
454 | .type = REGULATOR_VOLTAGE, | |
455 | .id = AB8500_LDO_TVOUT, | |
456 | .owner = THIS_MODULE, | |
457 | .n_voltages = 1, | |
458 | }, | |
42ab616a | 459 | .delay = 10000, |
6909b452 BJ |
460 | .fixed_uV = 2000000, |
461 | .update_bank = 0x03, | |
462 | .update_reg = 0x80, | |
463 | .update_mask = 0x82, | |
464 | .update_val_enable = 0x02, | |
465 | }, | |
ea05ef31 BJ |
466 | [AB8500_LDO_USB] = { |
467 | .desc = { | |
468 | .name = "LDO-USB", | |
469 | .ops = &ab8500_regulator_fixed_ops, | |
470 | .type = REGULATOR_VOLTAGE, | |
471 | .id = AB8500_LDO_USB, | |
472 | .owner = THIS_MODULE, | |
473 | .n_voltages = 1, | |
474 | }, | |
475 | .fixed_uV = 3300000, | |
476 | .update_bank = 0x03, | |
477 | .update_reg = 0x82, | |
478 | .update_mask = 0x03, | |
479 | .update_val_enable = 0x01, | |
480 | }, | |
6909b452 BJ |
481 | [AB8500_LDO_AUDIO] = { |
482 | .desc = { | |
483 | .name = "LDO-AUDIO", | |
484 | .ops = &ab8500_regulator_fixed_ops, | |
485 | .type = REGULATOR_VOLTAGE, | |
486 | .id = AB8500_LDO_AUDIO, | |
487 | .owner = THIS_MODULE, | |
488 | .n_voltages = 1, | |
489 | }, | |
490 | .fixed_uV = 2000000, | |
491 | .update_bank = 0x03, | |
492 | .update_reg = 0x83, | |
493 | .update_mask = 0x02, | |
494 | .update_val_enable = 0x02, | |
495 | }, | |
496 | [AB8500_LDO_ANAMIC1] = { | |
497 | .desc = { | |
498 | .name = "LDO-ANAMIC1", | |
499 | .ops = &ab8500_regulator_fixed_ops, | |
500 | .type = REGULATOR_VOLTAGE, | |
501 | .id = AB8500_LDO_ANAMIC1, | |
502 | .owner = THIS_MODULE, | |
503 | .n_voltages = 1, | |
504 | }, | |
505 | .fixed_uV = 2050000, | |
506 | .update_bank = 0x03, | |
507 | .update_reg = 0x83, | |
508 | .update_mask = 0x08, | |
509 | .update_val_enable = 0x08, | |
510 | }, | |
511 | [AB8500_LDO_ANAMIC2] = { | |
512 | .desc = { | |
513 | .name = "LDO-ANAMIC2", | |
514 | .ops = &ab8500_regulator_fixed_ops, | |
515 | .type = REGULATOR_VOLTAGE, | |
516 | .id = AB8500_LDO_ANAMIC2, | |
517 | .owner = THIS_MODULE, | |
518 | .n_voltages = 1, | |
519 | }, | |
520 | .fixed_uV = 2050000, | |
521 | .update_bank = 0x03, | |
522 | .update_reg = 0x83, | |
523 | .update_mask = 0x10, | |
524 | .update_val_enable = 0x10, | |
525 | }, | |
526 | [AB8500_LDO_DMIC] = { | |
527 | .desc = { | |
528 | .name = "LDO-DMIC", | |
529 | .ops = &ab8500_regulator_fixed_ops, | |
530 | .type = REGULATOR_VOLTAGE, | |
531 | .id = AB8500_LDO_DMIC, | |
532 | .owner = THIS_MODULE, | |
533 | .n_voltages = 1, | |
534 | }, | |
535 | .fixed_uV = 1800000, | |
536 | .update_bank = 0x03, | |
537 | .update_reg = 0x83, | |
538 | .update_mask = 0x04, | |
539 | .update_val_enable = 0x04, | |
540 | }, | |
541 | [AB8500_LDO_ANA] = { | |
542 | .desc = { | |
543 | .name = "LDO-ANA", | |
544 | .ops = &ab8500_regulator_fixed_ops, | |
545 | .type = REGULATOR_VOLTAGE, | |
546 | .id = AB8500_LDO_ANA, | |
547 | .owner = THIS_MODULE, | |
548 | .n_voltages = 1, | |
549 | }, | |
550 | .fixed_uV = 1200000, | |
551 | .update_bank = 0x04, | |
552 | .update_reg = 0x06, | |
553 | .update_mask = 0x0c, | |
554 | .update_val_enable = 0x04, | |
555 | }, | |
556 | ||
557 | ||
c789ca20 SI |
558 | }; |
559 | ||
79568b94 BJ |
560 | struct ab8500_reg_init { |
561 | u8 bank; | |
562 | u8 addr; | |
563 | u8 mask; | |
564 | }; | |
565 | ||
566 | #define REG_INIT(_id, _bank, _addr, _mask) \ | |
567 | [_id] = { \ | |
568 | .bank = _bank, \ | |
569 | .addr = _addr, \ | |
570 | .mask = _mask, \ | |
571 | } | |
572 | ||
573 | static struct ab8500_reg_init ab8500_reg_init[] = { | |
574 | /* | |
575 | * 0x30, VanaRequestCtrl | |
576 | * 0x0C, VpllRequestCtrl | |
577 | * 0xc0, VextSupply1RequestCtrl | |
578 | */ | |
579 | REG_INIT(AB8500_REGUREQUESTCTRL2, 0x03, 0x04, 0xfc), | |
580 | /* | |
581 | * 0x03, VextSupply2RequestCtrl | |
582 | * 0x0c, VextSupply3RequestCtrl | |
583 | * 0x30, Vaux1RequestCtrl | |
584 | * 0xc0, Vaux2RequestCtrl | |
585 | */ | |
586 | REG_INIT(AB8500_REGUREQUESTCTRL3, 0x03, 0x05, 0xff), | |
587 | /* | |
588 | * 0x03, Vaux3RequestCtrl | |
589 | * 0x04, SwHPReq | |
590 | */ | |
591 | REG_INIT(AB8500_REGUREQUESTCTRL4, 0x03, 0x06, 0x07), | |
592 | /* | |
593 | * 0x08, VanaSysClkReq1HPValid | |
594 | * 0x20, Vaux1SysClkReq1HPValid | |
595 | * 0x40, Vaux2SysClkReq1HPValid | |
596 | * 0x80, Vaux3SysClkReq1HPValid | |
597 | */ | |
598 | REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID1, 0x03, 0x07, 0xe8), | |
599 | /* | |
600 | * 0x10, VextSupply1SysClkReq1HPValid | |
601 | * 0x20, VextSupply2SysClkReq1HPValid | |
602 | * 0x40, VextSupply3SysClkReq1HPValid | |
603 | */ | |
604 | REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID2, 0x03, 0x08, 0x70), | |
605 | /* | |
606 | * 0x08, VanaHwHPReq1Valid | |
607 | * 0x20, Vaux1HwHPReq1Valid | |
608 | * 0x40, Vaux2HwHPReq1Valid | |
609 | * 0x80, Vaux3HwHPReq1Valid | |
610 | */ | |
611 | REG_INIT(AB8500_REGUHWHPREQ1VALID1, 0x03, 0x09, 0xe8), | |
612 | /* | |
613 | * 0x01, VextSupply1HwHPReq1Valid | |
614 | * 0x02, VextSupply2HwHPReq1Valid | |
615 | * 0x04, VextSupply3HwHPReq1Valid | |
616 | */ | |
617 | REG_INIT(AB8500_REGUHWHPREQ1VALID2, 0x03, 0x0a, 0x07), | |
618 | /* | |
619 | * 0x08, VanaHwHPReq2Valid | |
620 | * 0x20, Vaux1HwHPReq2Valid | |
621 | * 0x40, Vaux2HwHPReq2Valid | |
622 | * 0x80, Vaux3HwHPReq2Valid | |
623 | */ | |
624 | REG_INIT(AB8500_REGUHWHPREQ2VALID1, 0x03, 0x0b, 0xe8), | |
625 | /* | |
626 | * 0x01, VextSupply1HwHPReq2Valid | |
627 | * 0x02, VextSupply2HwHPReq2Valid | |
628 | * 0x04, VextSupply3HwHPReq2Valid | |
629 | */ | |
630 | REG_INIT(AB8500_REGUHWHPREQ2VALID2, 0x03, 0x0c, 0x07), | |
631 | /* | |
632 | * 0x20, VanaSwHPReqValid | |
633 | * 0x80, Vaux1SwHPReqValid | |
634 | */ | |
635 | REG_INIT(AB8500_REGUSWHPREQVALID1, 0x03, 0x0d, 0xa0), | |
636 | /* | |
637 | * 0x01, Vaux2SwHPReqValid | |
638 | * 0x02, Vaux3SwHPReqValid | |
639 | * 0x04, VextSupply1SwHPReqValid | |
640 | * 0x08, VextSupply2SwHPReqValid | |
641 | * 0x10, VextSupply3SwHPReqValid | |
642 | */ | |
643 | REG_INIT(AB8500_REGUSWHPREQVALID2, 0x03, 0x0e, 0x1f), | |
644 | /* | |
645 | * 0x02, SysClkReq2Valid1 | |
646 | * ... | |
647 | * 0x80, SysClkReq8Valid1 | |
648 | */ | |
649 | REG_INIT(AB8500_REGUSYSCLKREQVALID1, 0x03, 0x0f, 0xfe), | |
650 | /* | |
651 | * 0x02, SysClkReq2Valid2 | |
652 | * ... | |
653 | * 0x80, SysClkReq8Valid2 | |
654 | */ | |
655 | REG_INIT(AB8500_REGUSYSCLKREQVALID2, 0x03, 0x10, 0xfe), | |
656 | /* | |
657 | * 0x02, VTVoutEna | |
658 | * 0x04, Vintcore12Ena | |
659 | * 0x38, Vintcore12Sel | |
660 | * 0x40, Vintcore12LP | |
661 | * 0x80, VTVoutLP | |
662 | */ | |
663 | REG_INIT(AB8500_REGUMISC1, 0x03, 0x80, 0xfe), | |
664 | /* | |
665 | * 0x02, VaudioEna | |
666 | * 0x04, VdmicEna | |
667 | * 0x08, Vamic1Ena | |
668 | * 0x10, Vamic2Ena | |
669 | */ | |
670 | REG_INIT(AB8500_VAUDIOSUPPLY, 0x03, 0x83, 0x1e), | |
671 | /* | |
672 | * 0x01, Vamic1_dzout | |
673 | * 0x02, Vamic2_dzout | |
674 | */ | |
675 | REG_INIT(AB8500_REGUCTRL1VAMIC, 0x03, 0x84, 0x03), | |
676 | /* | |
677 | * 0x0c, VanaRegu | |
678 | * 0x03, VpllRegu | |
679 | */ | |
680 | REG_INIT(AB8500_VPLLVANAREGU, 0x04, 0x06, 0x0f), | |
681 | /* | |
682 | * 0x01, VrefDDREna | |
683 | * 0x02, VrefDDRSleepMode | |
684 | */ | |
685 | REG_INIT(AB8500_VREFDDR, 0x04, 0x07, 0x03), | |
686 | /* | |
687 | * 0x03, VextSupply1Regu | |
688 | * 0x0c, VextSupply2Regu | |
689 | * 0x30, VextSupply3Regu | |
690 | * 0x40, ExtSupply2Bypass | |
691 | * 0x80, ExtSupply3Bypass | |
692 | */ | |
693 | REG_INIT(AB8500_EXTSUPPLYREGU, 0x04, 0x08, 0xff), | |
694 | /* | |
695 | * 0x03, Vaux1Regu | |
696 | * 0x0c, Vaux2Regu | |
697 | */ | |
698 | REG_INIT(AB8500_VAUX12REGU, 0x04, 0x09, 0x0f), | |
699 | /* | |
700 | * 0x03, Vaux3Regu | |
701 | */ | |
702 | REG_INIT(AB8500_VRF1VAUX3REGU, 0x04, 0x0a, 0x03), | |
703 | /* | |
704 | * 0x3f, Vsmps1Sel1 | |
705 | */ | |
706 | REG_INIT(AB8500_VSMPS1SEL1, 0x04, 0x13, 0x3f), | |
707 | /* | |
708 | * 0x0f, Vaux1Sel | |
709 | */ | |
710 | REG_INIT(AB8500_VAUX1SEL, 0x04, 0x1f, 0x0f), | |
711 | /* | |
712 | * 0x0f, Vaux2Sel | |
713 | */ | |
714 | REG_INIT(AB8500_VAUX2SEL, 0x04, 0x20, 0x0f), | |
715 | /* | |
716 | * 0x07, Vaux3Sel | |
717 | */ | |
718 | REG_INIT(AB8500_VRF1VAUX3SEL, 0x04, 0x21, 0x07), | |
719 | /* | |
720 | * 0x01, VextSupply12LP | |
721 | */ | |
722 | REG_INIT(AB8500_REGUCTRL2SPARE, 0x04, 0x22, 0x01), | |
723 | /* | |
724 | * 0x04, Vaux1Disch | |
725 | * 0x08, Vaux2Disch | |
726 | * 0x10, Vaux3Disch | |
727 | * 0x20, Vintcore12Disch | |
728 | * 0x40, VTVoutDisch | |
729 | * 0x80, VaudioDisch | |
730 | */ | |
731 | REG_INIT(AB8500_REGUCTRLDISCH, 0x04, 0x43, 0xfc), | |
732 | /* | |
733 | * 0x02, VanaDisch | |
734 | * 0x04, VdmicPullDownEna | |
735 | * 0x10, VdmicDisch | |
736 | */ | |
737 | REG_INIT(AB8500_REGUCTRLDISCH2, 0x04, 0x44, 0x16), | |
738 | }; | |
739 | ||
c789ca20 SI |
740 | static __devinit int ab8500_regulator_probe(struct platform_device *pdev) |
741 | { | |
742 | struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent); | |
af54decd | 743 | struct ab8500_platform_data *pdata; |
c789ca20 SI |
744 | int i, err; |
745 | ||
746 | if (!ab8500) { | |
747 | dev_err(&pdev->dev, "null mfd parent\n"); | |
748 | return -EINVAL; | |
749 | } | |
af54decd | 750 | pdata = dev_get_platdata(ab8500->dev); |
fc24b426 BJ |
751 | if (!pdata) { |
752 | dev_err(&pdev->dev, "null pdata\n"); | |
753 | return -EINVAL; | |
754 | } | |
c789ca20 | 755 | |
cb189b07 BJ |
756 | /* make sure the platform data has the correct size */ |
757 | if (pdata->num_regulator != ARRAY_SIZE(ab8500_regulator_info)) { | |
79568b94 | 758 | dev_err(&pdev->dev, "Configuration error: size mismatch.\n"); |
cb189b07 BJ |
759 | return -EINVAL; |
760 | } | |
761 | ||
79568b94 BJ |
762 | /* initialize registers */ |
763 | for (i = 0; i < pdata->num_regulator_reg_init; i++) { | |
764 | int id; | |
765 | u8 value; | |
766 | ||
767 | id = pdata->regulator_reg_init[i].id; | |
768 | value = pdata->regulator_reg_init[i].value; | |
769 | ||
770 | /* check for configuration errors */ | |
771 | if (id >= AB8500_NUM_REGULATOR_REGISTERS) { | |
772 | dev_err(&pdev->dev, | |
773 | "Configuration error: id outside range.\n"); | |
774 | return -EINVAL; | |
775 | } | |
776 | if (value & ~ab8500_reg_init[id].mask) { | |
777 | dev_err(&pdev->dev, | |
778 | "Configuration error: value outside mask.\n"); | |
779 | return -EINVAL; | |
780 | } | |
781 | ||
782 | /* initialize register */ | |
783 | err = abx500_mask_and_set_register_interruptible(&pdev->dev, | |
784 | ab8500_reg_init[id].bank, | |
785 | ab8500_reg_init[id].addr, | |
786 | ab8500_reg_init[id].mask, | |
787 | value); | |
788 | if (err < 0) { | |
789 | dev_err(&pdev->dev, | |
790 | "Failed to initialize 0x%02x, 0x%02x.\n", | |
791 | ab8500_reg_init[id].bank, | |
792 | ab8500_reg_init[id].addr); | |
793 | return err; | |
794 | } | |
795 | dev_vdbg(&pdev->dev, | |
796 | " init: 0x%02x, 0x%02x, 0x%02x, 0x%02x\n", | |
797 | ab8500_reg_init[id].bank, | |
798 | ab8500_reg_init[id].addr, | |
799 | ab8500_reg_init[id].mask, | |
800 | value); | |
801 | } | |
802 | ||
c789ca20 SI |
803 | /* register all regulators */ |
804 | for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) { | |
805 | struct ab8500_regulator_info *info = NULL; | |
806 | ||
807 | /* assign per-regulator data */ | |
808 | info = &ab8500_regulator_info[i]; | |
809 | info->dev = &pdev->dev; | |
c789ca20 | 810 | |
2b75151a BJ |
811 | /* fix for hardware before ab8500v2.0 */ |
812 | if (abx500_get_chip_id(info->dev) < 0x20) { | |
813 | if (info->desc.id == AB8500_LDO_AUX3) { | |
814 | info->desc.n_voltages = | |
815 | ARRAY_SIZE(ldo_vauxn_voltages); | |
e1159e6d | 816 | info->voltages = ldo_vauxn_voltages; |
2b75151a BJ |
817 | info->voltages_len = |
818 | ARRAY_SIZE(ldo_vauxn_voltages); | |
819 | info->voltage_mask = 0xf; | |
820 | } | |
821 | } | |
822 | ||
823 | /* register regulator with framework */ | |
c789ca20 | 824 | info->regulator = regulator_register(&info->desc, &pdev->dev, |
cb189b07 | 825 | &pdata->regulator[i], info); |
c789ca20 SI |
826 | if (IS_ERR(info->regulator)) { |
827 | err = PTR_ERR(info->regulator); | |
828 | dev_err(&pdev->dev, "failed to register regulator %s\n", | |
829 | info->desc.name); | |
830 | /* when we fail, un-register all earlier regulators */ | |
d4876a3b | 831 | while (--i >= 0) { |
c789ca20 SI |
832 | info = &ab8500_regulator_info[i]; |
833 | regulator_unregister(info->regulator); | |
c789ca20 SI |
834 | } |
835 | return err; | |
836 | } | |
09aefa12 BJ |
837 | |
838 | dev_vdbg(rdev_get_dev(info->regulator), | |
839 | "%s-probed\n", info->desc.name); | |
c789ca20 SI |
840 | } |
841 | ||
842 | return 0; | |
843 | } | |
844 | ||
845 | static __devexit int ab8500_regulator_remove(struct platform_device *pdev) | |
846 | { | |
847 | int i; | |
848 | ||
849 | for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) { | |
850 | struct ab8500_regulator_info *info = NULL; | |
851 | info = &ab8500_regulator_info[i]; | |
09aefa12 BJ |
852 | |
853 | dev_vdbg(rdev_get_dev(info->regulator), | |
854 | "%s-remove\n", info->desc.name); | |
855 | ||
c789ca20 SI |
856 | regulator_unregister(info->regulator); |
857 | } | |
858 | ||
859 | return 0; | |
860 | } | |
861 | ||
862 | static struct platform_driver ab8500_regulator_driver = { | |
863 | .probe = ab8500_regulator_probe, | |
864 | .remove = __devexit_p(ab8500_regulator_remove), | |
865 | .driver = { | |
866 | .name = "ab8500-regulator", | |
867 | .owner = THIS_MODULE, | |
868 | }, | |
869 | }; | |
870 | ||
871 | static int __init ab8500_regulator_init(void) | |
872 | { | |
873 | int ret; | |
874 | ||
875 | ret = platform_driver_register(&ab8500_regulator_driver); | |
876 | if (ret != 0) | |
877 | pr_err("Failed to register ab8500 regulator: %d\n", ret); | |
878 | ||
879 | return ret; | |
880 | } | |
881 | subsys_initcall(ab8500_regulator_init); | |
882 | ||
883 | static void __exit ab8500_regulator_exit(void) | |
884 | { | |
885 | platform_driver_unregister(&ab8500_regulator_driver); | |
886 | } | |
887 | module_exit(ab8500_regulator_exit); | |
888 | ||
889 | MODULE_LICENSE("GPL v2"); | |
890 | MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>"); | |
891 | MODULE_DESCRIPTION("Regulator Driver for ST-Ericsson AB8500 Mixed-Sig PMIC"); | |
892 | MODULE_ALIAS("platform:ab8500-regulator"); |