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5de219cc WS |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // Regulator driver for DA9063 PMIC series | |
4 | // | |
5 | // Copyright 2012 Dialog Semiconductors Ltd. | |
6 | // Copyright 2013 Philipp Zabel, Pengutronix | |
7 | // | |
8 | // Author: Krystian Garbaciak <krystian.garbaciak@diasemi.com> | |
ebf6dad0 | 9 | |
69ca3e58 KG |
10 | #include <linux/kernel.h> |
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/err.h> | |
14 | #include <linux/slab.h> | |
15 | #include <linux/of.h> | |
16 | #include <linux/platform_device.h> | |
17 | #include <linux/regmap.h> | |
18 | #include <linux/regulator/driver.h> | |
19 | #include <linux/regulator/machine.h> | |
20 | #include <linux/regulator/of_regulator.h> | |
21 | #include <linux/mfd/da9063/core.h> | |
69ca3e58 KG |
22 | #include <linux/mfd/da9063/registers.h> |
23 | ||
24 | ||
25 | /* Definition for registering regmap bit fields using a mask */ | |
26 | #define BFIELD(_reg, _mask) \ | |
27 | REG_FIELD(_reg, __builtin_ffs((int)_mask) - 1, \ | |
28 | sizeof(unsigned int) * 8 - __builtin_clz((_mask)) - 1) | |
29 | ||
824bd1be WS |
30 | /* DA9063 and DA9063L regulator IDs */ |
31 | enum { | |
32 | /* BUCKs */ | |
33 | DA9063_ID_BCORE1, | |
34 | DA9063_ID_BCORE2, | |
35 | DA9063_ID_BPRO, | |
36 | DA9063_ID_BMEM, | |
37 | DA9063_ID_BIO, | |
38 | DA9063_ID_BPERI, | |
39 | ||
40 | /* BCORE1 and BCORE2 in merged mode */ | |
41 | DA9063_ID_BCORES_MERGED, | |
42 | /* BMEM and BIO in merged mode */ | |
43 | DA9063_ID_BMEM_BIO_MERGED, | |
44 | /* When two BUCKs are merged, they cannot be reused separately */ | |
45 | ||
46 | /* LDOs on both DA9063 and DA9063L */ | |
47 | DA9063_ID_LDO3, | |
48 | DA9063_ID_LDO7, | |
49 | DA9063_ID_LDO8, | |
50 | DA9063_ID_LDO9, | |
51 | DA9063_ID_LDO11, | |
52 | ||
53 | /* DA9063-only LDOs */ | |
54 | DA9063_ID_LDO1, | |
55 | DA9063_ID_LDO2, | |
56 | DA9063_ID_LDO4, | |
57 | DA9063_ID_LDO5, | |
58 | DA9063_ID_LDO6, | |
59 | DA9063_ID_LDO10, | |
60 | }; | |
61 | ||
62 | /* Old regulator platform data */ | |
63 | struct da9063_regulator_data { | |
64 | int id; | |
65 | struct regulator_init_data *initdata; | |
66 | }; | |
67 | ||
68 | struct da9063_regulators_pdata { | |
a33b25f5 | 69 | unsigned int n_regulators; |
824bd1be WS |
70 | struct da9063_regulator_data *regulator_data; |
71 | }; | |
72 | ||
69ca3e58 KG |
73 | /* Regulator capabilities and registers description */ |
74 | struct da9063_regulator_info { | |
75 | struct regulator_desc desc; | |
76 | ||
69ca3e58 KG |
77 | /* DA9063 main register fields */ |
78 | struct reg_field mode; /* buck mode of operation */ | |
79 | struct reg_field suspend; | |
80 | struct reg_field sleep; | |
81 | struct reg_field suspend_sleep; | |
82 | unsigned int suspend_vsel_reg; | |
69ca3e58 KG |
83 | |
84 | /* DA9063 event detection bit */ | |
85 | struct reg_field oc_event; | |
13186dae BB |
86 | |
87 | /* DA9063 voltage monitor bit */ | |
88 | struct reg_field vmon; | |
69ca3e58 KG |
89 | }; |
90 | ||
91 | /* Macros for LDO */ | |
92 | #define DA9063_LDO(chip, regl_name, min_mV, step_mV, max_mV) \ | |
93 | .desc.id = chip##_ID_##regl_name, \ | |
94 | .desc.name = __stringify(chip##_##regl_name), \ | |
95 | .desc.ops = &da9063_ldo_ops, \ | |
96 | .desc.min_uV = (min_mV) * 1000, \ | |
97 | .desc.uV_step = (step_mV) * 1000, \ | |
ebf6dad0 ST |
98 | .desc.n_voltages = (((max_mV) - (min_mV))/(step_mV) + 1 \ |
99 | + (DA9063_V##regl_name##_BIAS)), \ | |
69ca3e58 KG |
100 | .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \ |
101 | .desc.enable_mask = DA9063_LDO_EN, \ | |
102 | .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \ | |
103 | .desc.vsel_mask = DA9063_V##regl_name##_MASK, \ | |
104 | .desc.linear_min_sel = DA9063_V##regl_name##_BIAS, \ | |
105 | .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_LDO_SL), \ | |
99f75ce6 | 106 | .suspend = BFIELD(DA9063_REG_##regl_name##_CONT, DA9063_LDO_CONF), \ |
69ca3e58 KG |
107 | .suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_LDO_SL), \ |
108 | .suspend_vsel_reg = DA9063_REG_V##regl_name##_B | |
109 | ||
110 | /* Macros for voltage DC/DC converters (BUCKs) */ | |
5b1f537e AL |
111 | #define DA9063_BUCK(chip, regl_name, min_mV, step_mV, max_mV, limits_array, \ |
112 | creg, cmask) \ | |
69ca3e58 KG |
113 | .desc.id = chip##_ID_##regl_name, \ |
114 | .desc.name = __stringify(chip##_##regl_name), \ | |
115 | .desc.ops = &da9063_buck_ops, \ | |
116 | .desc.min_uV = (min_mV) * 1000, \ | |
117 | .desc.uV_step = (step_mV) * 1000, \ | |
118 | .desc.n_voltages = ((max_mV) - (min_mV))/(step_mV) + 1, \ | |
5b1f537e AL |
119 | .desc.csel_reg = (creg), \ |
120 | .desc.csel_mask = (cmask), \ | |
121 | .desc.curr_table = limits_array, \ | |
122 | .desc.n_current_limits = ARRAY_SIZE(limits_array) | |
69ca3e58 KG |
123 | |
124 | #define DA9063_BUCK_COMMON_FIELDS(regl_name) \ | |
125 | .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \ | |
126 | .desc.enable_mask = DA9063_BUCK_EN, \ | |
127 | .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \ | |
128 | .desc.vsel_mask = DA9063_VBUCK_MASK, \ | |
129 | .desc.linear_min_sel = DA9063_VBUCK_BIAS, \ | |
130 | .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_BUCK_SL), \ | |
99f75ce6 | 131 | .suspend = BFIELD(DA9063_REG_##regl_name##_CONT, DA9063_BUCK_CONF), \ |
69ca3e58 KG |
132 | .suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_BUCK_SL), \ |
133 | .suspend_vsel_reg = DA9063_REG_V##regl_name##_B, \ | |
134 | .mode = BFIELD(DA9063_REG_##regl_name##_CFG, DA9063_BUCK_MODE_MASK) | |
135 | ||
136 | /* Defines asignment of regulators info table to chip model */ | |
137 | struct da9063_dev_model { | |
138 | const struct da9063_regulator_info *regulator_info; | |
a33b25f5 | 139 | unsigned int n_regulators; |
492510dd | 140 | enum da9063_type type; |
69ca3e58 KG |
141 | }; |
142 | ||
143 | /* Single regulator settings */ | |
144 | struct da9063_regulator { | |
145 | struct regulator_desc desc; | |
146 | struct regulator_dev *rdev; | |
147 | struct da9063 *hw; | |
148 | const struct da9063_regulator_info *info; | |
149 | ||
150 | struct regmap_field *mode; | |
151 | struct regmap_field *suspend; | |
152 | struct regmap_field *sleep; | |
153 | struct regmap_field *suspend_sleep; | |
13186dae | 154 | struct regmap_field *vmon; |
69ca3e58 KG |
155 | }; |
156 | ||
157 | /* Encapsulates all information for the regulators driver */ | |
158 | struct da9063_regulators { | |
a33b25f5 | 159 | unsigned int n_regulators; |
69ca3e58 | 160 | /* Array size to be defined during init. Keep at end. */ |
23a653eb | 161 | struct da9063_regulator regulator[]; |
69ca3e58 KG |
162 | }; |
163 | ||
164 | /* BUCK modes for DA9063 */ | |
165 | enum { | |
166 | BUCK_MODE_MANUAL, /* 0 */ | |
167 | BUCK_MODE_SLEEP, /* 1 */ | |
168 | BUCK_MODE_SYNC, /* 2 */ | |
169 | BUCK_MODE_AUTO /* 3 */ | |
170 | }; | |
171 | ||
172 | /* Regulator operations */ | |
173 | ||
a33b25f5 RG |
174 | /* |
175 | * Current limits array (in uA) for BCORE1, BCORE2, BPRO. | |
176 | * Entry indexes corresponds to register values. | |
177 | */ | |
5b1f537e | 178 | static const unsigned int da9063_buck_a_limits[] = { |
69ca3e58 KG |
179 | 500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000, |
180 | 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000 | |
181 | }; | |
182 | ||
a33b25f5 RG |
183 | /* |
184 | * Current limits array (in uA) for BMEM, BIO, BPERI. | |
185 | * Entry indexes corresponds to register values. | |
186 | */ | |
5b1f537e | 187 | static const unsigned int da9063_buck_b_limits[] = { |
69ca3e58 KG |
188 | 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000, |
189 | 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000 | |
190 | }; | |
191 | ||
a33b25f5 RG |
192 | /* |
193 | * Current limits array (in uA) for merged BCORE1 and BCORE2. | |
194 | * Entry indexes corresponds to register values. | |
195 | */ | |
5b1f537e | 196 | static const unsigned int da9063_bcores_merged_limits[] = { |
69ca3e58 KG |
197 | 1000000, 1200000, 1400000, 1600000, 1800000, 2000000, 2200000, 2400000, |
198 | 2600000, 2800000, 3000000, 3200000, 3400000, 3600000, 3800000, 4000000 | |
199 | }; | |
200 | ||
a33b25f5 RG |
201 | /* |
202 | * Current limits array (in uA) for merged BMEM and BIO. | |
203 | * Entry indexes corresponds to register values. | |
204 | */ | |
5b1f537e | 205 | static const unsigned int da9063_bmem_bio_merged_limits[] = { |
69ca3e58 KG |
206 | 3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, |
207 | 4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000 | |
208 | }; | |
209 | ||
b8717a80 BB |
210 | static int da9063_set_xvp(struct regulator_dev *rdev, int lim_uV, int severity, bool enable) |
211 | { | |
212 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
213 | struct device *dev = regl->hw->dev; | |
214 | ||
215 | dev_dbg(dev, "%s: lim: %d, sev: %d, en: %d\n", regl->desc.name, lim_uV, severity, enable); | |
216 | ||
217 | /* | |
218 | * only support enable and disable. | |
219 | * the da9063 offers a GPIO (GP_FB2) which is unasserted if an XV happens. | |
220 | * therefore ignore severity here, as there might be handlers in hardware. | |
221 | */ | |
222 | if (lim_uV) | |
223 | return -EINVAL; | |
224 | ||
225 | return regmap_field_write(regl->vmon, enable ? 1 : 0); | |
226 | } | |
227 | ||
a33b25f5 | 228 | static int da9063_buck_set_mode(struct regulator_dev *rdev, unsigned int mode) |
69ca3e58 KG |
229 | { |
230 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
a33b25f5 | 231 | unsigned int val; |
69ca3e58 KG |
232 | |
233 | switch (mode) { | |
234 | case REGULATOR_MODE_FAST: | |
235 | val = BUCK_MODE_SYNC; | |
236 | break; | |
237 | case REGULATOR_MODE_NORMAL: | |
238 | val = BUCK_MODE_AUTO; | |
239 | break; | |
240 | case REGULATOR_MODE_STANDBY: | |
241 | val = BUCK_MODE_SLEEP; | |
242 | break; | |
243 | default: | |
244 | return -EINVAL; | |
245 | } | |
246 | ||
247 | return regmap_field_write(regl->mode, val); | |
248 | } | |
249 | ||
250 | /* | |
251 | * Bucks use single mode register field for normal operation | |
252 | * and suspend state. | |
253 | * There are 3 modes to map to: FAST, NORMAL, and STANDBY. | |
254 | */ | |
255 | ||
a33b25f5 | 256 | static unsigned int da9063_buck_get_mode(struct regulator_dev *rdev) |
69ca3e58 KG |
257 | { |
258 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
e62cb0e0 | 259 | unsigned int val; |
69ca3e58 KG |
260 | int ret; |
261 | ||
262 | ret = regmap_field_read(regl->mode, &val); | |
263 | if (ret < 0) | |
264 | return ret; | |
265 | ||
266 | switch (val) { | |
267 | default: | |
268 | case BUCK_MODE_MANUAL: | |
69ca3e58 KG |
269 | /* Sleep flag bit decides the mode */ |
270 | break; | |
271 | case BUCK_MODE_SLEEP: | |
272 | return REGULATOR_MODE_STANDBY; | |
273 | case BUCK_MODE_SYNC: | |
274 | return REGULATOR_MODE_FAST; | |
275 | case BUCK_MODE_AUTO: | |
276 | return REGULATOR_MODE_NORMAL; | |
277 | } | |
278 | ||
fc69bab1 | 279 | ret = regmap_field_read(regl->sleep, &val); |
69ca3e58 KG |
280 | if (ret < 0) |
281 | return 0; | |
282 | ||
283 | if (val) | |
e62cb0e0 | 284 | return REGULATOR_MODE_STANDBY; |
69ca3e58 | 285 | else |
e62cb0e0 | 286 | return REGULATOR_MODE_FAST; |
69ca3e58 KG |
287 | } |
288 | ||
289 | /* | |
290 | * LDOs use sleep flags - one for normal and one for suspend state. | |
291 | * There are 2 modes to map to: NORMAL and STANDBY (sleep) for each state. | |
292 | */ | |
293 | ||
a33b25f5 | 294 | static int da9063_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode) |
69ca3e58 KG |
295 | { |
296 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
a33b25f5 | 297 | unsigned int val; |
69ca3e58 KG |
298 | |
299 | switch (mode) { | |
300 | case REGULATOR_MODE_NORMAL: | |
301 | val = 0; | |
302 | break; | |
303 | case REGULATOR_MODE_STANDBY: | |
304 | val = 1; | |
305 | break; | |
306 | default: | |
307 | return -EINVAL; | |
308 | } | |
309 | ||
310 | return regmap_field_write(regl->sleep, val); | |
311 | } | |
312 | ||
a33b25f5 | 313 | static unsigned int da9063_ldo_get_mode(struct regulator_dev *rdev) |
69ca3e58 KG |
314 | { |
315 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
69ca3e58 KG |
316 | int ret, val; |
317 | ||
fc69bab1 | 318 | ret = regmap_field_read(regl->sleep, &val); |
69ca3e58 KG |
319 | if (ret < 0) |
320 | return 0; | |
321 | ||
322 | if (val) | |
323 | return REGULATOR_MODE_STANDBY; | |
324 | else | |
325 | return REGULATOR_MODE_NORMAL; | |
326 | } | |
327 | ||
328 | static int da9063_buck_get_status(struct regulator_dev *rdev) | |
329 | { | |
330 | int ret = regulator_is_enabled_regmap(rdev); | |
331 | ||
332 | if (ret == 0) { | |
333 | ret = REGULATOR_STATUS_OFF; | |
334 | } else if (ret > 0) { | |
335 | ret = da9063_buck_get_mode(rdev); | |
336 | if (ret > 0) | |
337 | ret = regulator_mode_to_status(ret); | |
338 | else if (ret == 0) | |
339 | ret = -EIO; | |
340 | } | |
341 | ||
342 | return ret; | |
343 | } | |
344 | ||
345 | static int da9063_ldo_get_status(struct regulator_dev *rdev) | |
346 | { | |
347 | int ret = regulator_is_enabled_regmap(rdev); | |
348 | ||
349 | if (ret == 0) { | |
350 | ret = REGULATOR_STATUS_OFF; | |
351 | } else if (ret > 0) { | |
352 | ret = da9063_ldo_get_mode(rdev); | |
353 | if (ret > 0) | |
354 | ret = regulator_mode_to_status(ret); | |
355 | else if (ret == 0) | |
356 | ret = -EIO; | |
357 | } | |
358 | ||
359 | return ret; | |
360 | } | |
361 | ||
362 | static int da9063_set_suspend_voltage(struct regulator_dev *rdev, int uV) | |
363 | { | |
364 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
365 | const struct da9063_regulator_info *rinfo = regl->info; | |
366 | int ret, sel; | |
367 | ||
368 | sel = regulator_map_voltage_linear(rdev, uV, uV); | |
369 | if (sel < 0) | |
8a7963d5 | 370 | return sel; |
69ca3e58 KG |
371 | |
372 | sel <<= ffs(rdev->desc->vsel_mask) - 1; | |
373 | ||
374 | ret = regmap_update_bits(regl->hw->regmap, rinfo->suspend_vsel_reg, | |
375 | rdev->desc->vsel_mask, sel); | |
376 | ||
377 | return ret; | |
378 | } | |
379 | ||
380 | static int da9063_suspend_enable(struct regulator_dev *rdev) | |
381 | { | |
382 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
383 | ||
384 | return regmap_field_write(regl->suspend, 1); | |
385 | } | |
386 | ||
387 | static int da9063_suspend_disable(struct regulator_dev *rdev) | |
388 | { | |
389 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
390 | ||
391 | return regmap_field_write(regl->suspend, 0); | |
392 | } | |
393 | ||
a33b25f5 RG |
394 | static int da9063_buck_set_suspend_mode(struct regulator_dev *rdev, |
395 | unsigned int mode) | |
69ca3e58 KG |
396 | { |
397 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
398 | int val; | |
399 | ||
400 | switch (mode) { | |
401 | case REGULATOR_MODE_FAST: | |
402 | val = BUCK_MODE_SYNC; | |
403 | break; | |
404 | case REGULATOR_MODE_NORMAL: | |
405 | val = BUCK_MODE_AUTO; | |
406 | break; | |
407 | case REGULATOR_MODE_STANDBY: | |
408 | val = BUCK_MODE_SLEEP; | |
409 | break; | |
410 | default: | |
411 | return -EINVAL; | |
412 | } | |
413 | ||
414 | return regmap_field_write(regl->mode, val); | |
415 | } | |
416 | ||
a33b25f5 RG |
417 | static int da9063_ldo_set_suspend_mode(struct regulator_dev *rdev, |
418 | unsigned int mode) | |
69ca3e58 KG |
419 | { |
420 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
a33b25f5 | 421 | unsigned int val; |
69ca3e58 KG |
422 | |
423 | switch (mode) { | |
424 | case REGULATOR_MODE_NORMAL: | |
425 | val = 0; | |
426 | break; | |
427 | case REGULATOR_MODE_STANDBY: | |
428 | val = 1; | |
429 | break; | |
430 | default: | |
431 | return -EINVAL; | |
432 | } | |
433 | ||
434 | return regmap_field_write(regl->suspend_sleep, val); | |
435 | } | |
436 | ||
541ee8f6 VP |
437 | static unsigned int da9063_get_overdrive_mask(const struct regulator_desc *desc) |
438 | { | |
439 | switch (desc->id) { | |
440 | case DA9063_ID_BCORES_MERGED: | |
441 | case DA9063_ID_BCORE1: | |
442 | return DA9063_BCORE1_OD; | |
443 | case DA9063_ID_BCORE2: | |
444 | return DA9063_BCORE2_OD; | |
445 | case DA9063_ID_BPRO: | |
446 | return DA9063_BPRO_OD; | |
447 | default: | |
448 | return 0; | |
449 | } | |
450 | } | |
451 | ||
452 | static int da9063_buck_set_limit_set_overdrive(struct regulator_dev *rdev, | |
453 | int min_uA, int max_uA, | |
454 | unsigned int overdrive_mask) | |
455 | { | |
456 | /* | |
457 | * When enabling overdrive, do it before changing the current limit to | |
458 | * ensure sufficient supply throughout the switch. | |
459 | */ | |
460 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
461 | int ret; | |
462 | unsigned int orig_overdrive; | |
463 | ||
464 | ret = regmap_read(regl->hw->regmap, DA9063_REG_CONFIG_H, | |
465 | &orig_overdrive); | |
466 | if (ret < 0) | |
467 | return ret; | |
468 | orig_overdrive &= overdrive_mask; | |
469 | ||
470 | if (orig_overdrive == 0) { | |
471 | ret = regmap_set_bits(regl->hw->regmap, DA9063_REG_CONFIG_H, | |
472 | overdrive_mask); | |
473 | if (ret < 0) | |
474 | return ret; | |
475 | } | |
476 | ||
477 | ret = regulator_set_current_limit_regmap(rdev, min_uA / 2, max_uA / 2); | |
478 | if (ret < 0 && orig_overdrive == 0) | |
479 | /* | |
480 | * regulator_set_current_limit_regmap may have rejected the | |
481 | * change because of unusable min_uA and/or max_uA inputs. | |
482 | * Attempt to restore original overdrive state, ignore failure- | |
483 | * on-failure. | |
484 | */ | |
485 | regmap_clear_bits(regl->hw->regmap, DA9063_REG_CONFIG_H, | |
486 | overdrive_mask); | |
487 | ||
488 | return ret; | |
489 | } | |
490 | ||
491 | static int da9063_buck_set_limit_clear_overdrive(struct regulator_dev *rdev, | |
492 | int min_uA, int max_uA, | |
493 | unsigned int overdrive_mask) | |
494 | { | |
495 | /* | |
496 | * When disabling overdrive, do it after changing the current limit to | |
497 | * ensure sufficient supply throughout the switch. | |
498 | */ | |
499 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
500 | int ret, orig_limit; | |
501 | ||
502 | ret = regmap_read(rdev->regmap, rdev->desc->csel_reg, &orig_limit); | |
503 | if (ret < 0) | |
504 | return ret; | |
505 | ||
506 | ret = regulator_set_current_limit_regmap(rdev, min_uA, max_uA); | |
507 | if (ret < 0) | |
508 | return ret; | |
509 | ||
510 | ret = regmap_clear_bits(regl->hw->regmap, DA9063_REG_CONFIG_H, | |
511 | overdrive_mask); | |
512 | if (ret < 0) | |
513 | /* | |
514 | * Attempt to restore original current limit, ignore failure- | |
515 | * on-failure. | |
516 | */ | |
517 | regmap_write(rdev->regmap, rdev->desc->csel_reg, orig_limit); | |
518 | ||
519 | return ret; | |
520 | } | |
521 | ||
522 | static int da9063_buck_set_current_limit(struct regulator_dev *rdev, | |
523 | int min_uA, int max_uA) | |
524 | { | |
525 | unsigned int overdrive_mask, n_currents; | |
526 | ||
527 | overdrive_mask = da9063_get_overdrive_mask(rdev->desc); | |
528 | if (overdrive_mask) { | |
529 | n_currents = rdev->desc->n_current_limits; | |
530 | if (n_currents == 0) | |
531 | return -EINVAL; | |
532 | ||
533 | if (max_uA > rdev->desc->curr_table[n_currents - 1]) | |
534 | return da9063_buck_set_limit_set_overdrive(rdev, min_uA, | |
535 | max_uA, | |
536 | overdrive_mask); | |
537 | ||
538 | return da9063_buck_set_limit_clear_overdrive(rdev, min_uA, | |
539 | max_uA, | |
540 | overdrive_mask); | |
541 | } | |
542 | return regulator_set_current_limit_regmap(rdev, min_uA, max_uA); | |
543 | } | |
544 | ||
545 | static int da9063_buck_get_current_limit(struct regulator_dev *rdev) | |
546 | { | |
547 | struct da9063_regulator *regl = rdev_get_drvdata(rdev); | |
548 | int val, ret, limit; | |
549 | unsigned int mask; | |
550 | ||
551 | limit = regulator_get_current_limit_regmap(rdev); | |
552 | if (limit < 0) | |
553 | return limit; | |
554 | mask = da9063_get_overdrive_mask(rdev->desc); | |
555 | if (mask) { | |
556 | ret = regmap_read(regl->hw->regmap, DA9063_REG_CONFIG_H, &val); | |
557 | if (ret < 0) | |
558 | return ret; | |
559 | if (val & mask) | |
560 | limit *= 2; | |
561 | } | |
562 | return limit; | |
563 | } | |
564 | ||
71242b49 | 565 | static const struct regulator_ops da9063_buck_ops = { |
b8717a80 BB |
566 | .enable = regulator_enable_regmap, |
567 | .disable = regulator_disable_regmap, | |
568 | .is_enabled = regulator_is_enabled_regmap, | |
569 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
570 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
571 | .list_voltage = regulator_list_voltage_linear, | |
572 | .set_current_limit = da9063_buck_set_current_limit, | |
573 | .get_current_limit = da9063_buck_get_current_limit, | |
574 | .set_mode = da9063_buck_set_mode, | |
575 | .get_mode = da9063_buck_get_mode, | |
576 | .get_status = da9063_buck_get_status, | |
577 | .set_suspend_voltage = da9063_set_suspend_voltage, | |
578 | .set_suspend_enable = da9063_suspend_enable, | |
579 | .set_suspend_disable = da9063_suspend_disable, | |
580 | .set_suspend_mode = da9063_buck_set_suspend_mode, | |
581 | .set_over_voltage_protection = da9063_set_xvp, | |
582 | .set_under_voltage_protection = da9063_set_xvp, | |
69ca3e58 KG |
583 | }; |
584 | ||
71242b49 | 585 | static const struct regulator_ops da9063_ldo_ops = { |
b8717a80 BB |
586 | .enable = regulator_enable_regmap, |
587 | .disable = regulator_disable_regmap, | |
588 | .is_enabled = regulator_is_enabled_regmap, | |
589 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
590 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
591 | .list_voltage = regulator_list_voltage_linear, | |
592 | .set_mode = da9063_ldo_set_mode, | |
593 | .get_mode = da9063_ldo_get_mode, | |
594 | .get_status = da9063_ldo_get_status, | |
595 | .set_suspend_voltage = da9063_set_suspend_voltage, | |
596 | .set_suspend_enable = da9063_suspend_enable, | |
597 | .set_suspend_disable = da9063_suspend_disable, | |
598 | .set_suspend_mode = da9063_ldo_set_suspend_mode, | |
599 | .set_over_voltage_protection = da9063_set_xvp, | |
600 | .set_under_voltage_protection = da9063_set_xvp, | |
69ca3e58 KG |
601 | }; |
602 | ||
603 | /* Info of regulators for DA9063 */ | |
604 | static const struct da9063_regulator_info da9063_regulator_info[] = { | |
605 | { | |
606 | DA9063_BUCK(DA9063, BCORE1, 300, 10, 1570, | |
5b1f537e AL |
607 | da9063_buck_a_limits, |
608 | DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK), | |
69ca3e58 | 609 | DA9063_BUCK_COMMON_FIELDS(BCORE1), |
13186dae | 610 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BCORE1_MON_EN), |
69ca3e58 KG |
611 | }, |
612 | { | |
613 | DA9063_BUCK(DA9063, BCORE2, 300, 10, 1570, | |
5b1f537e AL |
614 | da9063_buck_a_limits, |
615 | DA9063_REG_BUCK_ILIM_C, DA9063_BCORE2_ILIM_MASK), | |
69ca3e58 | 616 | DA9063_BUCK_COMMON_FIELDS(BCORE2), |
13186dae | 617 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BCORE2_MON_EN), |
69ca3e58 KG |
618 | }, |
619 | { | |
620 | DA9063_BUCK(DA9063, BPRO, 530, 10, 1800, | |
5b1f537e AL |
621 | da9063_buck_a_limits, |
622 | DA9063_REG_BUCK_ILIM_B, DA9063_BPRO_ILIM_MASK), | |
69ca3e58 | 623 | DA9063_BUCK_COMMON_FIELDS(BPRO), |
13186dae | 624 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BPRO_MON_EN), |
69ca3e58 KG |
625 | }, |
626 | { | |
627 | DA9063_BUCK(DA9063, BMEM, 800, 20, 3340, | |
5b1f537e AL |
628 | da9063_buck_b_limits, |
629 | DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK), | |
69ca3e58 | 630 | DA9063_BUCK_COMMON_FIELDS(BMEM), |
13186dae | 631 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BMEM_MON_EN), |
69ca3e58 KG |
632 | }, |
633 | { | |
634 | DA9063_BUCK(DA9063, BIO, 800, 20, 3340, | |
5b1f537e AL |
635 | da9063_buck_b_limits, |
636 | DA9063_REG_BUCK_ILIM_A, DA9063_BIO_ILIM_MASK), | |
69ca3e58 | 637 | DA9063_BUCK_COMMON_FIELDS(BIO), |
13186dae | 638 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BIO_MON_EN), |
69ca3e58 KG |
639 | }, |
640 | { | |
641 | DA9063_BUCK(DA9063, BPERI, 800, 20, 3340, | |
5b1f537e AL |
642 | da9063_buck_b_limits, |
643 | DA9063_REG_BUCK_ILIM_B, DA9063_BPERI_ILIM_MASK), | |
69ca3e58 | 644 | DA9063_BUCK_COMMON_FIELDS(BPERI), |
13186dae | 645 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BPERI_MON_EN), |
69ca3e58 KG |
646 | }, |
647 | { | |
648 | DA9063_BUCK(DA9063, BCORES_MERGED, 300, 10, 1570, | |
5b1f537e AL |
649 | da9063_bcores_merged_limits, |
650 | DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK), | |
69ca3e58 KG |
651 | /* BCORES_MERGED uses the same register fields as BCORE1 */ |
652 | DA9063_BUCK_COMMON_FIELDS(BCORE1), | |
13186dae | 653 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BCORE1_MON_EN), |
69ca3e58 KG |
654 | }, |
655 | { | |
656 | DA9063_BUCK(DA9063, BMEM_BIO_MERGED, 800, 20, 3340, | |
5b1f537e AL |
657 | da9063_bmem_bio_merged_limits, |
658 | DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK), | |
69ca3e58 KG |
659 | /* BMEM_BIO_MERGED uses the same register fields as BMEM */ |
660 | DA9063_BUCK_COMMON_FIELDS(BMEM), | |
13186dae | 661 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_4, DA9063_BMEM_MON_EN), |
69ca3e58 | 662 | }, |
1c892e38 MV |
663 | { |
664 | DA9063_LDO(DA9063, LDO3, 900, 20, 3440), | |
1c892e38 | 665 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO3_LIM), |
13186dae | 666 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO3_MON_EN), |
1c892e38 MV |
667 | }, |
668 | { | |
669 | DA9063_LDO(DA9063, LDO7, 900, 50, 3600), | |
1c892e38 | 670 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO7_LIM), |
13186dae | 671 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO7_MON_EN), |
1c892e38 MV |
672 | }, |
673 | { | |
674 | DA9063_LDO(DA9063, LDO8, 900, 50, 3600), | |
1c892e38 | 675 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO8_LIM), |
13186dae | 676 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO8_MON_EN), |
1c892e38 MV |
677 | }, |
678 | { | |
679 | DA9063_LDO(DA9063, LDO9, 950, 50, 3600), | |
13186dae | 680 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_3, DA9063_LDO9_MON_EN), |
1c892e38 MV |
681 | }, |
682 | { | |
683 | DA9063_LDO(DA9063, LDO11, 900, 50, 3600), | |
1c892e38 | 684 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO11_LIM), |
13186dae | 685 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_3, DA9063_LDO11_MON_EN), |
1c892e38 MV |
686 | }, |
687 | ||
688 | /* The following LDOs are present only on DA9063, not on DA9063L */ | |
69ca3e58 KG |
689 | { |
690 | DA9063_LDO(DA9063, LDO1, 600, 20, 1860), | |
13186dae | 691 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO1_MON_EN), |
69ca3e58 KG |
692 | }, |
693 | { | |
694 | DA9063_LDO(DA9063, LDO2, 600, 20, 1860), | |
13186dae | 695 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO2_MON_EN), |
69ca3e58 | 696 | }, |
69ca3e58 KG |
697 | { |
698 | DA9063_LDO(DA9063, LDO4, 900, 20, 3440), | |
69ca3e58 | 699 | .oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO4_LIM), |
13186dae | 700 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO4_MON_EN), |
69ca3e58 KG |
701 | }, |
702 | { | |
703 | DA9063_LDO(DA9063, LDO5, 900, 50, 3600), | |
13186dae | 704 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO5_MON_EN), |
69ca3e58 KG |
705 | }, |
706 | { | |
707 | DA9063_LDO(DA9063, LDO6, 900, 50, 3600), | |
13186dae | 708 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_2, DA9063_LDO6_MON_EN), |
69ca3e58 | 709 | }, |
1c892e38 | 710 | |
69ca3e58 KG |
711 | { |
712 | DA9063_LDO(DA9063, LDO10, 900, 50, 3600), | |
13186dae | 713 | .vmon = BFIELD(DA9063_BB_REG_MON_REG_3, DA9063_LDO10_MON_EN), |
69ca3e58 | 714 | }, |
69ca3e58 KG |
715 | }; |
716 | ||
717 | /* Link chip model with regulators info table */ | |
718 | static struct da9063_dev_model regulators_models[] = { | |
719 | { | |
720 | .regulator_info = da9063_regulator_info, | |
721 | .n_regulators = ARRAY_SIZE(da9063_regulator_info), | |
492510dd | 722 | .type = PMIC_TYPE_DA9063, |
69ca3e58 | 723 | }, |
1c892e38 MV |
724 | { |
725 | .regulator_info = da9063_regulator_info, | |
726 | .n_regulators = ARRAY_SIZE(da9063_regulator_info) - 6, | |
727 | .type = PMIC_TYPE_DA9063L, | |
728 | }, | |
69ca3e58 KG |
729 | { } |
730 | }; | |
731 | ||
732 | /* Regulator interrupt handlers */ | |
632b3d62 | 733 | static irqreturn_t da9063_ldo_lim_event(int irq, void *data) |
69ca3e58 KG |
734 | { |
735 | struct da9063_regulators *regulators = data; | |
736 | struct da9063 *hw = regulators->regulator[0].hw; | |
737 | struct da9063_regulator *regl; | |
a33b25f5 | 738 | int bits, i, ret; |
69ca3e58 KG |
739 | |
740 | ret = regmap_read(hw->regmap, DA9063_REG_STATUS_D, &bits); | |
741 | if (ret < 0) | |
742 | return IRQ_NONE; | |
743 | ||
744 | for (i = regulators->n_regulators - 1; i >= 0; i--) { | |
745 | regl = ®ulators->regulator[i]; | |
746 | if (regl->info->oc_event.reg != DA9063_REG_STATUS_D) | |
747 | continue; | |
748 | ||
29d40b4a | 749 | if (BIT(regl->info->oc_event.lsb) & bits) { |
69ca3e58 KG |
750 | regulator_notifier_call_chain(regl->rdev, |
751 | REGULATOR_EVENT_OVER_CURRENT, NULL); | |
29d40b4a | 752 | } |
69ca3e58 KG |
753 | } |
754 | ||
755 | return IRQ_HANDLED; | |
756 | } | |
757 | ||
758 | /* | |
759 | * Probing and Initialisation functions | |
760 | */ | |
761 | static const struct regulator_init_data *da9063_get_regulator_initdata( | |
762 | const struct da9063_regulators_pdata *regl_pdata, int id) | |
763 | { | |
764 | int i; | |
765 | ||
766 | for (i = 0; i < regl_pdata->n_regulators; i++) { | |
767 | if (id == regl_pdata->regulator_data[i].id) | |
768 | return regl_pdata->regulator_data[i].initdata; | |
769 | } | |
770 | ||
771 | return NULL; | |
772 | } | |
773 | ||
b8717a80 BB |
774 | static int da9063_check_xvp_constraints(struct regulator_config *config) |
775 | { | |
776 | struct da9063_regulator *regl = config->driver_data; | |
777 | const struct regulation_constraints *constr = &config->init_data->constraints; | |
778 | const struct notification_limit *uv_l = &constr->under_voltage_limits; | |
779 | const struct notification_limit *ov_l = &constr->over_voltage_limits; | |
780 | ||
781 | /* make sure that only one severity is used to clarify if unchanged, enabled or disabled */ | |
782 | if ((!!uv_l->prot + !!uv_l->err + !!uv_l->warn) > 1) { | |
783 | dev_err(config->dev, "%s: at most one voltage monitoring severity allowed!\n", | |
784 | regl->desc.name); | |
785 | return -EINVAL; | |
786 | } | |
787 | ||
788 | /* make sure that UV and OV monitoring is set to the same severity and value */ | |
789 | if (uv_l->prot != ov_l->prot) { | |
790 | dev_err(config->dev, | |
791 | "%s: protection-microvolt: value must be equal for uv and ov!\n", | |
792 | regl->desc.name); | |
793 | return -EINVAL; | |
794 | } | |
795 | if (uv_l->err != ov_l->err) { | |
796 | dev_err(config->dev, "%s: error-microvolt: value must be equal for uv and ov!\n", | |
797 | regl->desc.name); | |
798 | return -EINVAL; | |
799 | } | |
800 | if (uv_l->warn != ov_l->warn) { | |
801 | dev_err(config->dev, "%s: warn-microvolt: value must be equal for uv and ov!\n", | |
802 | regl->desc.name); | |
803 | return -EINVAL; | |
804 | } | |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
69ca3e58 KG |
809 | static struct of_regulator_match da9063_matches[] = { |
810 | [DA9063_ID_BCORE1] = { .name = "bcore1" }, | |
811 | [DA9063_ID_BCORE2] = { .name = "bcore2" }, | |
812 | [DA9063_ID_BPRO] = { .name = "bpro", }, | |
813 | [DA9063_ID_BMEM] = { .name = "bmem", }, | |
814 | [DA9063_ID_BIO] = { .name = "bio", }, | |
815 | [DA9063_ID_BPERI] = { .name = "bperi", }, | |
816 | [DA9063_ID_BCORES_MERGED] = { .name = "bcores-merged" }, | |
817 | [DA9063_ID_BMEM_BIO_MERGED] = { .name = "bmem-bio-merged", }, | |
1c892e38 MV |
818 | [DA9063_ID_LDO3] = { .name = "ldo3", }, |
819 | [DA9063_ID_LDO7] = { .name = "ldo7", }, | |
820 | [DA9063_ID_LDO8] = { .name = "ldo8", }, | |
821 | [DA9063_ID_LDO9] = { .name = "ldo9", }, | |
822 | [DA9063_ID_LDO11] = { .name = "ldo11", }, | |
823 | /* The following LDOs are present only on DA9063, not on DA9063L */ | |
69ca3e58 KG |
824 | [DA9063_ID_LDO1] = { .name = "ldo1", }, |
825 | [DA9063_ID_LDO2] = { .name = "ldo2", }, | |
69ca3e58 KG |
826 | [DA9063_ID_LDO4] = { .name = "ldo4", }, |
827 | [DA9063_ID_LDO5] = { .name = "ldo5", }, | |
828 | [DA9063_ID_LDO6] = { .name = "ldo6", }, | |
69ca3e58 | 829 | [DA9063_ID_LDO10] = { .name = "ldo10", }, |
69ca3e58 KG |
830 | }; |
831 | ||
832 | static struct da9063_regulators_pdata *da9063_parse_regulators_dt( | |
833 | struct platform_device *pdev, | |
834 | struct of_regulator_match **da9063_reg_matches) | |
835 | { | |
1c892e38 | 836 | struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent); |
69ca3e58 KG |
837 | struct da9063_regulators_pdata *pdata; |
838 | struct da9063_regulator_data *rdata; | |
839 | struct device_node *node; | |
1c892e38 | 840 | int da9063_matches_len = ARRAY_SIZE(da9063_matches); |
69ca3e58 KG |
841 | int i, n, num; |
842 | ||
1c892e38 MV |
843 | if (da9063->type == PMIC_TYPE_DA9063L) |
844 | da9063_matches_len -= 6; | |
845 | ||
25cc275a | 846 | node = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); |
69ca3e58 KG |
847 | if (!node) { |
848 | dev_err(&pdev->dev, "Regulators device node not found\n"); | |
849 | return ERR_PTR(-ENODEV); | |
850 | } | |
851 | ||
852 | num = of_regulator_match(&pdev->dev, node, da9063_matches, | |
1c892e38 | 853 | da9063_matches_len); |
2da8215c | 854 | of_node_put(node); |
69ca3e58 KG |
855 | if (num < 0) { |
856 | dev_err(&pdev->dev, "Failed to match regulators\n"); | |
857 | return ERR_PTR(-EINVAL); | |
858 | } | |
859 | ||
860 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); | |
861 | if (!pdata) | |
862 | return ERR_PTR(-ENOMEM); | |
863 | ||
a86854d0 KC |
864 | pdata->regulator_data = devm_kcalloc(&pdev->dev, |
865 | num, sizeof(*pdata->regulator_data), | |
69ca3e58 KG |
866 | GFP_KERNEL); |
867 | if (!pdata->regulator_data) | |
868 | return ERR_PTR(-ENOMEM); | |
869 | pdata->n_regulators = num; | |
870 | ||
871 | n = 0; | |
1c892e38 | 872 | for (i = 0; i < da9063_matches_len; i++) { |
69ca3e58 KG |
873 | if (!da9063_matches[i].init_data) |
874 | continue; | |
875 | ||
876 | rdata = &pdata->regulator_data[n]; | |
877 | rdata->id = i; | |
878 | rdata->initdata = da9063_matches[i].init_data; | |
879 | ||
880 | n++; | |
424fb281 | 881 | } |
69ca3e58 KG |
882 | |
883 | *da9063_reg_matches = da9063_matches; | |
884 | return pdata; | |
885 | } | |
69ca3e58 KG |
886 | |
887 | static int da9063_regulator_probe(struct platform_device *pdev) | |
888 | { | |
889 | struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent); | |
0fdfd40a | 890 | struct of_regulator_match *da9063_reg_matches = NULL; |
69ca3e58 KG |
891 | struct da9063_regulators_pdata *regl_pdata; |
892 | const struct da9063_dev_model *model; | |
893 | struct da9063_regulators *regulators; | |
894 | struct da9063_regulator *regl; | |
895 | struct regulator_config config; | |
896 | bool bcores_merged, bmem_bio_merged; | |
897 | int id, irq, n, n_regulators, ret, val; | |
69ca3e58 | 898 | |
66230729 | 899 | regl_pdata = da9063_parse_regulators_dt(pdev, &da9063_reg_matches); |
69ca3e58 KG |
900 | |
901 | if (IS_ERR(regl_pdata) || regl_pdata->n_regulators == 0) { | |
902 | dev_err(&pdev->dev, | |
903 | "No regulators defined for the platform\n"); | |
b6615659 | 904 | return -ENODEV; |
69ca3e58 KG |
905 | } |
906 | ||
907 | /* Find regulators set for particular device model */ | |
908 | for (model = regulators_models; model->regulator_info; model++) { | |
492510dd | 909 | if (model->type == da9063->type) |
69ca3e58 KG |
910 | break; |
911 | } | |
912 | if (!model->regulator_info) { | |
913 | dev_err(&pdev->dev, "Chip model not recognised (%u)\n", | |
492510dd | 914 | da9063->type); |
69ca3e58 KG |
915 | return -ENODEV; |
916 | } | |
917 | ||
918 | ret = regmap_read(da9063->regmap, DA9063_REG_CONFIG_H, &val); | |
919 | if (ret < 0) { | |
920 | dev_err(&pdev->dev, | |
921 | "Error while reading BUCKs configuration\n"); | |
8a7963d5 | 922 | return ret; |
69ca3e58 KG |
923 | } |
924 | bcores_merged = val & DA9063_BCORE_MERGE; | |
925 | bmem_bio_merged = val & DA9063_BUCK_MERGE; | |
926 | ||
927 | n_regulators = model->n_regulators; | |
928 | if (bcores_merged) | |
929 | n_regulators -= 2; /* remove BCORE1, BCORE2 */ | |
930 | else | |
931 | n_regulators--; /* remove BCORES_MERGED */ | |
932 | if (bmem_bio_merged) | |
933 | n_regulators -= 2; /* remove BMEM, BIO */ | |
934 | else | |
935 | n_regulators--; /* remove BMEM_BIO_MERGED */ | |
936 | ||
937 | /* Allocate memory required by usable regulators */ | |
ac227fb5 GS |
938 | regulators = devm_kzalloc(&pdev->dev, struct_size(regulators, |
939 | regulator, n_regulators), GFP_KERNEL); | |
8b5baa56 | 940 | if (!regulators) |
69ca3e58 | 941 | return -ENOMEM; |
69ca3e58 KG |
942 | |
943 | regulators->n_regulators = n_regulators; | |
944 | platform_set_drvdata(pdev, regulators); | |
945 | ||
946 | /* Register all regulators declared in platform information */ | |
947 | n = 0; | |
948 | id = 0; | |
949 | while (n < regulators->n_regulators) { | |
950 | /* Skip regulator IDs depending on merge mode configuration */ | |
951 | switch (id) { | |
952 | case DA9063_ID_BCORE1: | |
953 | case DA9063_ID_BCORE2: | |
954 | if (bcores_merged) { | |
955 | id++; | |
956 | continue; | |
957 | } | |
958 | break; | |
959 | case DA9063_ID_BMEM: | |
960 | case DA9063_ID_BIO: | |
961 | if (bmem_bio_merged) { | |
962 | id++; | |
963 | continue; | |
964 | } | |
965 | break; | |
966 | case DA9063_ID_BCORES_MERGED: | |
967 | if (!bcores_merged) { | |
968 | id++; | |
969 | continue; | |
970 | } | |
971 | break; | |
972 | case DA9063_ID_BMEM_BIO_MERGED: | |
973 | if (!bmem_bio_merged) { | |
974 | id++; | |
975 | continue; | |
976 | } | |
977 | break; | |
978 | } | |
979 | ||
980 | /* Initialise regulator structure */ | |
981 | regl = ®ulators->regulator[n]; | |
982 | regl->hw = da9063; | |
983 | regl->info = &model->regulator_info[id]; | |
984 | regl->desc = regl->info->desc; | |
985 | regl->desc.type = REGULATOR_VOLTAGE; | |
986 | regl->desc.owner = THIS_MODULE; | |
987 | ||
84592039 | 988 | if (regl->info->mode.reg) { |
69ca3e58 KG |
989 | regl->mode = devm_regmap_field_alloc(&pdev->dev, |
990 | da9063->regmap, regl->info->mode); | |
84592039 AL |
991 | if (IS_ERR(regl->mode)) |
992 | return PTR_ERR(regl->mode); | |
993 | } | |
994 | ||
995 | if (regl->info->suspend.reg) { | |
69ca3e58 KG |
996 | regl->suspend = devm_regmap_field_alloc(&pdev->dev, |
997 | da9063->regmap, regl->info->suspend); | |
84592039 AL |
998 | if (IS_ERR(regl->suspend)) |
999 | return PTR_ERR(regl->suspend); | |
1000 | } | |
1001 | ||
1002 | if (regl->info->sleep.reg) { | |
69ca3e58 KG |
1003 | regl->sleep = devm_regmap_field_alloc(&pdev->dev, |
1004 | da9063->regmap, regl->info->sleep); | |
84592039 AL |
1005 | if (IS_ERR(regl->sleep)) |
1006 | return PTR_ERR(regl->sleep); | |
1007 | } | |
1008 | ||
1009 | if (regl->info->suspend_sleep.reg) { | |
69ca3e58 | 1010 | regl->suspend_sleep = devm_regmap_field_alloc(&pdev->dev, |
a33b25f5 | 1011 | da9063->regmap, regl->info->suspend_sleep); |
84592039 AL |
1012 | if (IS_ERR(regl->suspend_sleep)) |
1013 | return PTR_ERR(regl->suspend_sleep); | |
1014 | } | |
13186dae BB |
1015 | if (regl->info->vmon.reg) { |
1016 | regl->vmon = devm_regmap_field_alloc(&pdev->dev, | |
1017 | da9063->regmap, regl->info->vmon); | |
1018 | if (IS_ERR(regl->vmon)) | |
1019 | return PTR_ERR(regl->vmon); | |
1020 | } | |
84592039 | 1021 | |
69ca3e58 KG |
1022 | /* Register regulator */ |
1023 | memset(&config, 0, sizeof(config)); | |
1024 | config.dev = &pdev->dev; | |
1025 | config.init_data = da9063_get_regulator_initdata(regl_pdata, id); | |
1026 | config.driver_data = regl; | |
1027 | if (da9063_reg_matches) | |
1028 | config.of_node = da9063_reg_matches[id].of_node; | |
1029 | config.regmap = da9063->regmap; | |
b8717a80 | 1030 | |
30c694fd MF |
1031 | /* Checking constraints requires init_data from DT. */ |
1032 | if (config.init_data) { | |
1033 | ret = da9063_check_xvp_constraints(&config); | |
1034 | if (ret) | |
1035 | return ret; | |
1036 | } | |
b8717a80 | 1037 | |
e97bba91 JH |
1038 | regl->rdev = devm_regulator_register(&pdev->dev, ®l->desc, |
1039 | &config); | |
e515800b | 1040 | if (IS_ERR(regl->rdev)) { |
69ca3e58 KG |
1041 | dev_err(&pdev->dev, |
1042 | "Failed to register %s regulator\n", | |
1043 | regl->desc.name); | |
e97bba91 | 1044 | return PTR_ERR(regl->rdev); |
69ca3e58 KG |
1045 | } |
1046 | id++; | |
1047 | n++; | |
1048 | } | |
1049 | ||
1050 | /* LDOs overcurrent event support */ | |
1051 | irq = platform_get_irq_byname(pdev, "LDO_LIM"); | |
47241933 | 1052 | if (irq < 0) |
e97bba91 | 1053 | return irq; |
69ca3e58 | 1054 | |
d87aef91 | 1055 | ret = devm_request_threaded_irq(&pdev->dev, irq, |
8ad365c9 DL |
1056 | NULL, da9063_ldo_lim_event, |
1057 | IRQF_TRIGGER_LOW | IRQF_ONESHOT, | |
1058 | "LDO_LIM", regulators); | |
6d8d840b | 1059 | if (ret) |
d87aef91 | 1060 | dev_err(&pdev->dev, "Failed to request LDO_LIM IRQ.\n"); |
69ca3e58 | 1061 | |
6d8d840b | 1062 | return ret; |
69ca3e58 KG |
1063 | } |
1064 | ||
69ca3e58 KG |
1065 | static struct platform_driver da9063_regulator_driver = { |
1066 | .driver = { | |
1067 | .name = DA9063_DRVNAME_REGULATORS, | |
259b93b2 | 1068 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
69ca3e58 KG |
1069 | }, |
1070 | .probe = da9063_regulator_probe, | |
69ca3e58 KG |
1071 | }; |
1072 | ||
1073 | static int __init da9063_regulator_init(void) | |
1074 | { | |
1075 | return platform_driver_register(&da9063_regulator_driver); | |
1076 | } | |
1077 | subsys_initcall(da9063_regulator_init); | |
1078 | ||
1079 | static void __exit da9063_regulator_cleanup(void) | |
1080 | { | |
1081 | platform_driver_unregister(&da9063_regulator_driver); | |
1082 | } | |
1083 | module_exit(da9063_regulator_cleanup); | |
1084 | ||
1085 | ||
1086 | /* Module information */ | |
1087 | MODULE_AUTHOR("Krystian Garbaciak <krystian.garbaciak@diasemi.com>"); | |
1088 | MODULE_DESCRIPTION("DA9063 regulators driver"); | |
1089 | MODULE_LICENSE("GPL"); | |
ac40b441 | 1090 | MODULE_ALIAS("platform:" DA9063_DRVNAME_REGULATORS); |