1 | // SPDX-License-Identifier: GPL-2.0 |
2 | // Copyright (C) 2018 ROHM Semiconductors |
3 | // bd71837-regulator.c ROHM BD71837MWV/BD71847MWV regulator driver |
4 | |
5 | #include <linux/delay.h> |
6 | #include <linux/err.h> |
7 | #include <linux/interrupt.h> |
8 | #include <linux/kernel.h> |
9 | #include <linux/mfd/rohm-bd718x7.h> |
10 | #include <linux/module.h> |
11 | #include <linux/of.h> |
12 | #include <linux/platform_device.h> |
13 | #include <linux/regulator/driver.h> |
14 | #include <linux/regulator/machine.h> |
15 | #include <linux/regulator/of_regulator.h> |
16 | #include <linux/slab.h> |
17 | |
18 | /* Typical regulator startup times as per data sheet in uS */ |
19 | #define BD71847_BUCK1_STARTUP_TIME 144 |
20 | #define BD71847_BUCK2_STARTUP_TIME 162 |
21 | #define BD71847_BUCK3_STARTUP_TIME 162 |
22 | #define BD71847_BUCK4_STARTUP_TIME 240 |
23 | #define BD71847_BUCK5_STARTUP_TIME 270 |
24 | #define BD71847_BUCK6_STARTUP_TIME 200 |
25 | #define BD71847_LDO1_STARTUP_TIME 440 |
26 | #define BD71847_LDO2_STARTUP_TIME 370 |
27 | #define BD71847_LDO3_STARTUP_TIME 310 |
28 | #define BD71847_LDO4_STARTUP_TIME 400 |
29 | #define BD71847_LDO5_STARTUP_TIME 530 |
30 | #define BD71847_LDO6_STARTUP_TIME 400 |
31 | |
32 | #define BD71837_BUCK1_STARTUP_TIME 160 |
33 | #define BD71837_BUCK2_STARTUP_TIME 180 |
34 | #define BD71837_BUCK3_STARTUP_TIME 180 |
35 | #define BD71837_BUCK4_STARTUP_TIME 180 |
36 | #define BD71837_BUCK5_STARTUP_TIME 160 |
37 | #define BD71837_BUCK6_STARTUP_TIME 240 |
38 | #define BD71837_BUCK7_STARTUP_TIME 220 |
39 | #define BD71837_BUCK8_STARTUP_TIME 200 |
40 | #define BD71837_LDO1_STARTUP_TIME 440 |
41 | #define BD71837_LDO2_STARTUP_TIME 370 |
42 | #define BD71837_LDO3_STARTUP_TIME 310 |
43 | #define BD71837_LDO4_STARTUP_TIME 400 |
44 | #define BD71837_LDO5_STARTUP_TIME 310 |
45 | #define BD71837_LDO6_STARTUP_TIME 400 |
46 | #define BD71837_LDO7_STARTUP_TIME 530 |
47 | |
48 | /* |
49 | * BD718(37/47/50) have two "enable control modes". ON/OFF can either be |
50 | * controlled by software - or by PMIC internal HW state machine. Whether |
51 | * regulator should be under SW or HW control can be defined from device-tree. |
52 | * Let's provide separate ops for regulators to use depending on the "enable |
53 | * control mode". |
54 | */ |
55 | #define BD718XX_HWOPNAME(swopname) swopname##_hwcontrol |
56 | |
57 | #define BD718XX_OPS(name, _list_voltage, _map_voltage, _set_voltage_sel, \ |
58 | _get_voltage_sel, _set_voltage_time_sel, _set_ramp_delay, \ |
59 | _set_uvp, _set_ovp) \ |
60 | static const struct regulator_ops name = { \ |
61 | .enable = regulator_enable_regmap, \ |
62 | .disable = regulator_disable_regmap, \ |
63 | .is_enabled = regulator_is_enabled_regmap, \ |
64 | .list_voltage = (_list_voltage), \ |
65 | .map_voltage = (_map_voltage), \ |
66 | .set_voltage_sel = (_set_voltage_sel), \ |
67 | .get_voltage_sel = (_get_voltage_sel), \ |
68 | .set_voltage_time_sel = (_set_voltage_time_sel), \ |
69 | .set_ramp_delay = (_set_ramp_delay), \ |
70 | .set_under_voltage_protection = (_set_uvp), \ |
71 | .set_over_voltage_protection = (_set_ovp), \ |
72 | }; \ |
73 | \ |
74 | static const struct regulator_ops BD718XX_HWOPNAME(name) = { \ |
75 | .is_enabled = always_enabled_by_hwstate, \ |
76 | .list_voltage = (_list_voltage), \ |
77 | .map_voltage = (_map_voltage), \ |
78 | .set_voltage_sel = (_set_voltage_sel), \ |
79 | .get_voltage_sel = (_get_voltage_sel), \ |
80 | .set_voltage_time_sel = (_set_voltage_time_sel), \ |
81 | .set_ramp_delay = (_set_ramp_delay), \ |
82 | .set_under_voltage_protection = (_set_uvp), \ |
83 | .set_over_voltage_protection = (_set_ovp), \ |
84 | } \ |
85 | |
86 | /* |
87 | * BUCK1/2/3/4 |
88 | * BUCK1RAMPRATE[1:0] BUCK1 DVS ramp rate setting |
89 | * 00: 10.00mV/usec 10mV 1uS |
90 | * 01: 5.00mV/usec 10mV 2uS |
91 | * 10: 2.50mV/usec 10mV 4uS |
92 | * 11: 1.25mV/usec 10mV 8uS |
93 | */ |
94 | static const unsigned int bd718xx_ramp_delay[] = { 10000, 5000, 2500, 1250 }; |
95 | |
96 | /* These functions are used when regulators are under HW state machine control. |
97 | * We assume PMIC is in RUN state because SW running and able to query the |
98 | * status. Most of the regulators have fixed ON or OFF state at RUN/IDLE so for |
99 | * them we just return a constant. BD71837 BUCK3 and BUCK4 are exceptions as |
100 | * they support configuring the ON/OFF state for RUN. |
101 | * |
102 | * Note for next hacker - these PMICs have a register where the HW state can be |
103 | * read. If assuming RUN appears to be false in your use-case - you can |
104 | * implement state reading (although that is not going to be atomic) before |
105 | * returning the enable state. |
106 | */ |
107 | static int always_enabled_by_hwstate(struct regulator_dev *rdev) |
108 | { |
109 | return 1; |
110 | } |
111 | |
112 | static int never_enabled_by_hwstate(struct regulator_dev *rdev) |
113 | { |
114 | return 0; |
115 | } |
116 | |
117 | static int bd71837_get_buck34_enable_hwctrl(struct regulator_dev *rdev) |
118 | { |
119 | int ret; |
120 | unsigned int val; |
121 | |
122 | ret = regmap_read(map: rdev->regmap, reg: rdev->desc->enable_reg, val: &val); |
123 | if (ret) |
124 | return ret; |
125 | |
126 | return !!(BD718XX_BUCK_RUN_ON & val); |
127 | } |
128 | |
129 | static void voltage_change_done(struct regulator_dev *rdev, unsigned int sel, |
130 | unsigned int *mask) |
131 | { |
132 | int ret; |
133 | |
134 | if (*mask) { |
135 | /* |
136 | * Let's allow scheduling as we use I2C anyways. We just need to |
137 | * guarantee minimum of 1ms sleep - it shouldn't matter if we |
138 | * exceed it due to the scheduling. |
139 | */ |
140 | msleep(msecs: 1); |
141 | |
142 | ret = regmap_clear_bits(map: rdev->regmap, reg: BD718XX_REG_MVRFLTMASK2, |
143 | bits: *mask); |
144 | if (ret) |
145 | dev_err(&rdev->dev, |
146 | "Failed to re-enable voltage monitoring (%d)\n" , |
147 | ret); |
148 | } |
149 | } |
150 | |
151 | static int voltage_change_prepare(struct regulator_dev *rdev, unsigned int sel, |
152 | unsigned int *mask) |
153 | { |
154 | int ret; |
155 | |
156 | *mask = 0; |
157 | if (rdev->desc->ops->is_enabled(rdev)) { |
158 | int now, new; |
159 | |
160 | now = rdev->desc->ops->get_voltage_sel(rdev); |
161 | if (now < 0) |
162 | return now; |
163 | |
164 | now = rdev->desc->ops->list_voltage(rdev, now); |
165 | if (now < 0) |
166 | return now; |
167 | |
168 | new = rdev->desc->ops->list_voltage(rdev, sel); |
169 | if (new < 0) |
170 | return new; |
171 | |
172 | /* |
173 | * If we increase LDO voltage when LDO is enabled we need to |
174 | * disable the power-good detection until voltage has reached |
175 | * the new level. According to HW colleagues the maximum time |
176 | * it takes is 1000us. I assume that on systems with light load |
177 | * this might be less - and we could probably use DT to give |
178 | * system specific delay value if performance matters. |
179 | * |
180 | * Well, knowing we use I2C here and can add scheduling delays |
181 | * I don't think it is worth the hassle and I just add fixed |
182 | * 1ms sleep here (and allow scheduling). If this turns out to |
183 | * be a problem we can change it to delay and make the delay |
184 | * time configurable. |
185 | */ |
186 | if (new > now) { |
187 | int tmp; |
188 | int prot_bit; |
189 | int ldo_offset = rdev->desc->id - BD718XX_LDO1; |
190 | |
191 | prot_bit = BD718XX_LDO1_VRMON80 << ldo_offset; |
192 | ret = regmap_read(map: rdev->regmap, reg: BD718XX_REG_MVRFLTMASK2, |
193 | val: &tmp); |
194 | if (ret) { |
195 | dev_err(&rdev->dev, |
196 | "Failed to read voltage monitoring state\n" ); |
197 | return ret; |
198 | } |
199 | |
200 | if (!(tmp & prot_bit)) { |
201 | /* We disable protection if it was enabled... */ |
202 | ret = regmap_set_bits(map: rdev->regmap, |
203 | reg: BD718XX_REG_MVRFLTMASK2, |
204 | bits: prot_bit); |
205 | /* ...and we also want to re-enable it */ |
206 | *mask = prot_bit; |
207 | } |
208 | if (ret) { |
209 | dev_err(&rdev->dev, |
210 | "Failed to stop voltage monitoring\n" ); |
211 | return ret; |
212 | } |
213 | } |
214 | } |
215 | |
216 | return 0; |
217 | } |
218 | |
219 | static int bd718xx_set_voltage_sel_restricted(struct regulator_dev *rdev, |
220 | unsigned int sel) |
221 | { |
222 | int ret; |
223 | int mask; |
224 | |
225 | ret = voltage_change_prepare(rdev, sel, mask: &mask); |
226 | if (ret) |
227 | return ret; |
228 | |
229 | ret = regulator_set_voltage_sel_regmap(rdev, sel); |
230 | voltage_change_done(rdev, sel, mask: &mask); |
231 | |
232 | return ret; |
233 | } |
234 | |
235 | static int bd718xx_set_voltage_sel_pickable_restricted( |
236 | struct regulator_dev *rdev, unsigned int sel) |
237 | { |
238 | int ret; |
239 | int mask; |
240 | |
241 | ret = voltage_change_prepare(rdev, sel, mask: &mask); |
242 | if (ret) |
243 | return ret; |
244 | |
245 | ret = regulator_set_voltage_sel_pickable_regmap(rdev, sel); |
246 | voltage_change_done(rdev, sel, mask: &mask); |
247 | |
248 | return ret; |
249 | } |
250 | |
251 | static int bd71837_set_voltage_sel_pickable_restricted( |
252 | struct regulator_dev *rdev, unsigned int sel) |
253 | { |
254 | if (rdev->desc->ops->is_enabled(rdev)) |
255 | return -EBUSY; |
256 | |
257 | return regulator_set_voltage_sel_pickable_regmap(rdev, sel); |
258 | } |
259 | |
260 | /* |
261 | * BD71837 BUCK1/2/3/4 |
262 | * BD71847 BUCK1/2 |
263 | * 0.70 to 1.30V (10mV step) |
264 | */ |
265 | static const struct linear_range bd718xx_dvs_buck_volts[] = { |
266 | REGULATOR_LINEAR_RANGE(700000, 0x00, 0x3C, 10000), |
267 | REGULATOR_LINEAR_RANGE(1300000, 0x3D, 0x3F, 0), |
268 | }; |
269 | |
270 | /* |
271 | * BD71837 BUCK5 |
272 | * 0.7V to 1.35V (range 0) |
273 | * and |
274 | * 0.675 to 1.325 (range 1) |
275 | */ |
276 | static const struct linear_range bd71837_buck5_volts[] = { |
277 | /* Ranges when VOLT_SEL bit is 0 */ |
278 | REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000), |
279 | REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000), |
280 | REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000), |
281 | /* Ranges when VOLT_SEL bit is 1 */ |
282 | REGULATOR_LINEAR_RANGE(675000, 0x0, 0x3, 100000), |
283 | REGULATOR_LINEAR_RANGE(1025000, 0x4, 0x5, 50000), |
284 | REGULATOR_LINEAR_RANGE(1175000, 0x6, 0x7, 150000), |
285 | }; |
286 | |
287 | /* |
288 | * Range selector for first 3 linear ranges is 0x0 |
289 | * and 0x1 for last 3 ranges. |
290 | */ |
291 | static const unsigned int bd71837_buck5_volt_range_sel[] = { |
292 | 0x0, 0x0, 0x0, 0x1, 0x1, 0x1 |
293 | }; |
294 | |
295 | /* |
296 | * BD71847 BUCK3 |
297 | */ |
298 | static const struct linear_range bd71847_buck3_volts[] = { |
299 | /* Ranges when VOLT_SEL bits are 00 */ |
300 | REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000), |
301 | REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000), |
302 | REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000), |
303 | /* Ranges when VOLT_SEL bits are 01 */ |
304 | REGULATOR_LINEAR_RANGE(550000, 0x0, 0x7, 50000), |
305 | /* Ranges when VOLT_SEL bits are 11 */ |
306 | REGULATOR_LINEAR_RANGE(675000, 0x0, 0x3, 100000), |
307 | REGULATOR_LINEAR_RANGE(1025000, 0x4, 0x5, 50000), |
308 | REGULATOR_LINEAR_RANGE(1175000, 0x6, 0x7, 150000), |
309 | }; |
310 | |
311 | static const unsigned int bd71847_buck3_volt_range_sel[] = { |
312 | 0x0, 0x0, 0x0, 0x1, 0x2, 0x2, 0x2 |
313 | }; |
314 | |
315 | static const struct linear_range bd71847_buck4_volts[] = { |
316 | REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), |
317 | REGULATOR_LINEAR_RANGE(2600000, 0x00, 0x03, 100000), |
318 | }; |
319 | |
320 | static const unsigned int bd71847_buck4_volt_range_sel[] = { 0x0, 0x1 }; |
321 | |
322 | /* |
323 | * BUCK6 |
324 | * 3.0V to 3.3V (step 100mV) |
325 | */ |
326 | static const struct linear_range bd71837_buck6_volts[] = { |
327 | REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), |
328 | }; |
329 | |
330 | /* |
331 | * BD71837 BUCK7 |
332 | * BD71847 BUCK5 |
333 | * 000 = 1.605V |
334 | * 001 = 1.695V |
335 | * 010 = 1.755V |
336 | * 011 = 1.8V (Initial) |
337 | * 100 = 1.845V |
338 | * 101 = 1.905V |
339 | * 110 = 1.95V |
340 | * 111 = 1.995V |
341 | */ |
342 | static const unsigned int bd718xx_3rd_nodvs_buck_volts[] = { |
343 | 1605000, 1695000, 1755000, 1800000, 1845000, 1905000, 1950000, 1995000 |
344 | }; |
345 | |
346 | /* |
347 | * BUCK8 |
348 | * 0.8V to 1.40V (step 10mV) |
349 | */ |
350 | static const struct linear_range bd718xx_4th_nodvs_buck_volts[] = { |
351 | REGULATOR_LINEAR_RANGE(800000, 0x00, 0x3C, 10000), |
352 | }; |
353 | |
354 | /* |
355 | * LDO1 |
356 | * 3.0 to 3.3V (100mV step) |
357 | */ |
358 | static const struct linear_range bd718xx_ldo1_volts[] = { |
359 | REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), |
360 | REGULATOR_LINEAR_RANGE(1600000, 0x00, 0x03, 100000), |
361 | }; |
362 | |
363 | static const unsigned int bd718xx_ldo1_volt_range_sel[] = { 0x0, 0x1 }; |
364 | |
365 | /* |
366 | * LDO2 |
367 | * 0.8 or 0.9V |
368 | */ |
369 | static const unsigned int ldo_2_volts[] = { |
370 | 900000, 800000 |
371 | }; |
372 | |
373 | /* |
374 | * LDO3 |
375 | * 1.8 to 3.3V (100mV step) |
376 | */ |
377 | static const struct linear_range bd718xx_ldo3_volts[] = { |
378 | REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), |
379 | }; |
380 | |
381 | /* |
382 | * LDO4 |
383 | * 0.9 to 1.8V (100mV step) |
384 | */ |
385 | static const struct linear_range bd718xx_ldo4_volts[] = { |
386 | REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000), |
387 | }; |
388 | |
389 | /* |
390 | * LDO5 for BD71837 |
391 | * 1.8 to 3.3V (100mV step) |
392 | */ |
393 | static const struct linear_range bd71837_ldo5_volts[] = { |
394 | REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), |
395 | }; |
396 | |
397 | /* |
398 | * LDO5 for BD71837 |
399 | * 1.8 to 3.3V (100mV step) |
400 | */ |
401 | static const struct linear_range bd71847_ldo5_volts[] = { |
402 | REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), |
403 | REGULATOR_LINEAR_RANGE(800000, 0x00, 0x0F, 100000), |
404 | }; |
405 | |
406 | static const unsigned int bd71847_ldo5_volt_range_sel[] = { 0x0, 0x1 }; |
407 | |
408 | /* |
409 | * LDO6 |
410 | * 0.9 to 1.8V (100mV step) |
411 | */ |
412 | static const struct linear_range bd718xx_ldo6_volts[] = { |
413 | REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000), |
414 | }; |
415 | |
416 | /* |
417 | * LDO7 |
418 | * 1.8 to 3.3V (100mV step) |
419 | */ |
420 | static const struct linear_range bd71837_ldo7_volts[] = { |
421 | REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), |
422 | }; |
423 | |
424 | struct reg_init { |
425 | unsigned int reg; |
426 | unsigned int mask; |
427 | unsigned int val; |
428 | }; |
429 | struct bd718xx_regulator_data { |
430 | struct regulator_desc desc; |
431 | const struct rohm_dvs_config dvs; |
432 | const struct reg_init init; |
433 | const struct reg_init *additional_inits; |
434 | int additional_init_amnt; |
435 | }; |
436 | |
437 | static int bd718x7_xvp_sanity_check(struct regulator_dev *rdev, int lim_uV, |
438 | int severity) |
439 | { |
440 | /* |
441 | * BD71837/47/50 ... (ICs supported by this driver) do not provide |
442 | * warnings, only protection |
443 | */ |
444 | if (severity != REGULATOR_SEVERITY_PROT) { |
445 | dev_err(&rdev->dev, |
446 | "Unsupported Under Voltage protection level\n" ); |
447 | return -EINVAL; |
448 | } |
449 | |
450 | /* |
451 | * And protection limit is not changeable. It can only be enabled |
452 | * or disabled |
453 | */ |
454 | if (lim_uV) |
455 | return -EINVAL; |
456 | |
457 | return 0; |
458 | } |
459 | |
460 | static int bd718x7_set_ldo_uvp(struct regulator_dev *rdev, int lim_uV, |
461 | int severity, bool enable) |
462 | { |
463 | int ldo_offset = rdev->desc->id - BD718XX_LDO1; |
464 | int prot_bit, ret; |
465 | |
466 | ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity); |
467 | if (ret) |
468 | return ret; |
469 | |
470 | prot_bit = BD718XX_LDO1_VRMON80 << ldo_offset; |
471 | |
472 | if (enable) |
473 | return regmap_clear_bits(map: rdev->regmap, reg: BD718XX_REG_MVRFLTMASK2, |
474 | bits: prot_bit); |
475 | |
476 | return regmap_set_bits(map: rdev->regmap, reg: BD718XX_REG_MVRFLTMASK2, |
477 | bits: prot_bit); |
478 | } |
479 | |
480 | static int bd718x7_get_buck_prot_reg(int id, int *reg) |
481 | { |
482 | |
483 | if (id > BD718XX_BUCK8) { |
484 | WARN_ON(id > BD718XX_BUCK8); |
485 | return -EINVAL; |
486 | } |
487 | |
488 | if (id > BD718XX_BUCK4) |
489 | *reg = BD718XX_REG_MVRFLTMASK0; |
490 | else |
491 | *reg = BD718XX_REG_MVRFLTMASK1; |
492 | |
493 | return 0; |
494 | } |
495 | |
496 | static int bd718x7_get_buck_ovp_info(int id, int *reg, int *bit) |
497 | { |
498 | int ret; |
499 | |
500 | ret = bd718x7_get_buck_prot_reg(id, reg); |
501 | if (ret) |
502 | return ret; |
503 | |
504 | *bit = BIT((id % 4) * 2 + 1); |
505 | |
506 | return 0; |
507 | } |
508 | |
509 | static int bd718x7_get_buck_uvp_info(int id, int *reg, int *bit) |
510 | { |
511 | int ret; |
512 | |
513 | ret = bd718x7_get_buck_prot_reg(id, reg); |
514 | if (ret) |
515 | return ret; |
516 | |
517 | *bit = BIT((id % 4) * 2); |
518 | |
519 | return 0; |
520 | } |
521 | |
522 | static int bd718x7_set_buck_uvp(struct regulator_dev *rdev, int lim_uV, |
523 | int severity, bool enable) |
524 | { |
525 | int bit, reg, ret; |
526 | |
527 | ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity); |
528 | if (ret) |
529 | return ret; |
530 | |
531 | ret = bd718x7_get_buck_uvp_info(id: rdev->desc->id, reg: ®, bit: &bit); |
532 | if (ret) |
533 | return ret; |
534 | |
535 | if (enable) |
536 | return regmap_clear_bits(map: rdev->regmap, reg, bits: bit); |
537 | |
538 | return regmap_set_bits(map: rdev->regmap, reg, bits: bit); |
539 | |
540 | } |
541 | |
542 | static int bd718x7_set_buck_ovp(struct regulator_dev *rdev, int lim_uV, |
543 | int severity, |
544 | bool enable) |
545 | { |
546 | int bit, reg, ret; |
547 | |
548 | ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity); |
549 | if (ret) |
550 | return ret; |
551 | |
552 | ret = bd718x7_get_buck_ovp_info(id: rdev->desc->id, reg: ®, bit: &bit); |
553 | if (ret) |
554 | return ret; |
555 | |
556 | if (enable) |
557 | return regmap_clear_bits(map: rdev->regmap, reg, bits: bit); |
558 | |
559 | return regmap_set_bits(map: rdev->regmap, reg, bits: bit); |
560 | } |
561 | |
562 | /* |
563 | * OPS common for BD71847 and BD71850 |
564 | */ |
565 | BD718XX_OPS(bd718xx_pickable_range_ldo_ops, |
566 | regulator_list_voltage_pickable_linear_range, NULL, |
567 | bd718xx_set_voltage_sel_pickable_restricted, |
568 | regulator_get_voltage_sel_pickable_regmap, NULL, NULL, |
569 | bd718x7_set_ldo_uvp, NULL); |
570 | |
571 | /* BD71847 and BD71850 LDO 5 is by default OFF at RUN state */ |
572 | static const struct regulator_ops bd718xx_ldo5_ops_hwstate = { |
573 | .is_enabled = never_enabled_by_hwstate, |
574 | .list_voltage = regulator_list_voltage_pickable_linear_range, |
575 | .set_voltage_sel = bd718xx_set_voltage_sel_pickable_restricted, |
576 | .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, |
577 | .set_under_voltage_protection = bd718x7_set_ldo_uvp, |
578 | }; |
579 | |
580 | BD718XX_OPS(bd718xx_pickable_range_buck_ops, |
581 | regulator_list_voltage_pickable_linear_range, NULL, |
582 | regulator_set_voltage_sel_pickable_regmap, |
583 | regulator_get_voltage_sel_pickable_regmap, |
584 | regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp, |
585 | bd718x7_set_buck_ovp); |
586 | |
587 | BD718XX_OPS(bd718xx_ldo_regulator_ops, regulator_list_voltage_linear_range, |
588 | NULL, bd718xx_set_voltage_sel_restricted, |
589 | regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp, |
590 | NULL); |
591 | |
592 | BD718XX_OPS(bd718xx_ldo_regulator_nolinear_ops, regulator_list_voltage_table, |
593 | NULL, bd718xx_set_voltage_sel_restricted, |
594 | regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp, |
595 | NULL); |
596 | |
597 | BD718XX_OPS(bd718xx_buck_regulator_ops, regulator_list_voltage_linear_range, |
598 | NULL, regulator_set_voltage_sel_regmap, |
599 | regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel, |
600 | NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); |
601 | |
602 | BD718XX_OPS(bd718xx_buck_regulator_nolinear_ops, regulator_list_voltage_table, |
603 | regulator_map_voltage_ascend, regulator_set_voltage_sel_regmap, |
604 | regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel, |
605 | NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); |
606 | |
607 | /* |
608 | * OPS for BD71837 |
609 | */ |
610 | BD718XX_OPS(bd71837_pickable_range_ldo_ops, |
611 | regulator_list_voltage_pickable_linear_range, NULL, |
612 | bd71837_set_voltage_sel_pickable_restricted, |
613 | regulator_get_voltage_sel_pickable_regmap, NULL, NULL, |
614 | bd718x7_set_ldo_uvp, NULL); |
615 | |
616 | BD718XX_OPS(bd71837_pickable_range_buck_ops, |
617 | regulator_list_voltage_pickable_linear_range, NULL, |
618 | bd71837_set_voltage_sel_pickable_restricted, |
619 | regulator_get_voltage_sel_pickable_regmap, |
620 | regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp, |
621 | bd718x7_set_buck_ovp); |
622 | |
623 | BD718XX_OPS(bd71837_ldo_regulator_ops, regulator_list_voltage_linear_range, |
624 | NULL, rohm_regulator_set_voltage_sel_restricted, |
625 | regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp, |
626 | NULL); |
627 | |
628 | BD718XX_OPS(bd71837_ldo_regulator_nolinear_ops, regulator_list_voltage_table, |
629 | NULL, rohm_regulator_set_voltage_sel_restricted, |
630 | regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp, |
631 | NULL); |
632 | |
633 | BD718XX_OPS(bd71837_buck_regulator_ops, regulator_list_voltage_linear_range, |
634 | NULL, rohm_regulator_set_voltage_sel_restricted, |
635 | regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel, |
636 | NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); |
637 | |
638 | BD718XX_OPS(bd71837_buck_regulator_nolinear_ops, regulator_list_voltage_table, |
639 | regulator_map_voltage_ascend, rohm_regulator_set_voltage_sel_restricted, |
640 | regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel, |
641 | NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); |
642 | /* |
643 | * BD71837 bucks 3 and 4 support defining their enable/disable state also |
644 | * when buck enable state is under HW state machine control. In that case the |
645 | * bit [2] in CTRL register is used to indicate if regulator should be ON. |
646 | */ |
647 | static const struct regulator_ops bd71837_buck34_ops_hwctrl = { |
648 | .is_enabled = bd71837_get_buck34_enable_hwctrl, |
649 | .list_voltage = regulator_list_voltage_linear_range, |
650 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
651 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
652 | .set_voltage_time_sel = regulator_set_voltage_time_sel, |
653 | .set_ramp_delay = regulator_set_ramp_delay_regmap, |
654 | .set_under_voltage_protection = bd718x7_set_buck_uvp, |
655 | .set_over_voltage_protection = bd718x7_set_buck_ovp, |
656 | }; |
657 | |
658 | /* |
659 | * OPS for all of the ICs - BD718(37/47/50) |
660 | */ |
661 | BD718XX_OPS(bd718xx_dvs_buck_regulator_ops, regulator_list_voltage_linear_range, |
662 | NULL, regulator_set_voltage_sel_regmap, |
663 | regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel, |
664 | regulator_set_ramp_delay_regmap, bd718x7_set_buck_uvp, |
665 | bd718x7_set_buck_ovp); |
666 | |
667 | |
668 | |
669 | /* |
670 | * There is a HW quirk in BD71837. The shutdown sequence timings for |
671 | * bucks/LDOs which are controlled via register interface are changed. |
672 | * At PMIC poweroff the voltage for BUCK6/7 is cut immediately at the |
673 | * beginning of shut-down sequence. As bucks 6 and 7 are parent |
674 | * supplies for LDO5 and LDO6 - this causes LDO5/6 voltage |
675 | * monitoring to errorneously detect under voltage and force PMIC to |
676 | * emergency state instead of poweroff. In order to avoid this we |
677 | * disable voltage monitoring for LDO5 and LDO6 |
678 | */ |
679 | static const struct reg_init bd71837_ldo5_inits[] = { |
680 | { |
681 | .reg = BD718XX_REG_MVRFLTMASK2, |
682 | .mask = BD718XX_LDO5_VRMON80, |
683 | .val = BD718XX_LDO5_VRMON80, |
684 | }, |
685 | }; |
686 | |
687 | static const struct reg_init bd71837_ldo6_inits[] = { |
688 | { |
689 | .reg = BD718XX_REG_MVRFLTMASK2, |
690 | .mask = BD718XX_LDO6_VRMON80, |
691 | .val = BD718XX_LDO6_VRMON80, |
692 | }, |
693 | }; |
694 | |
695 | static int buck_set_hw_dvs_levels(struct device_node *np, |
696 | const struct regulator_desc *desc, |
697 | struct regulator_config *cfg) |
698 | { |
699 | struct bd718xx_regulator_data *data; |
700 | |
701 | data = container_of(desc, struct bd718xx_regulator_data, desc); |
702 | |
703 | return rohm_regulator_set_dvs_levels(dvs: &data->dvs, np, desc, regmap: cfg->regmap); |
704 | } |
705 | |
706 | static const struct regulator_ops *bd71847_swcontrol_ops[] = { |
707 | &bd718xx_dvs_buck_regulator_ops, &bd718xx_dvs_buck_regulator_ops, |
708 | &bd718xx_pickable_range_buck_ops, &bd718xx_pickable_range_buck_ops, |
709 | &bd718xx_buck_regulator_nolinear_ops, &bd718xx_buck_regulator_ops, |
710 | &bd718xx_pickable_range_ldo_ops, &bd718xx_ldo_regulator_nolinear_ops, |
711 | &bd718xx_ldo_regulator_ops, &bd718xx_ldo_regulator_ops, |
712 | &bd718xx_pickable_range_ldo_ops, &bd718xx_ldo_regulator_ops, |
713 | }; |
714 | |
715 | static const struct regulator_ops *bd71847_hwcontrol_ops[] = { |
716 | &BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops), |
717 | &BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops), |
718 | &BD718XX_HWOPNAME(bd718xx_pickable_range_buck_ops), |
719 | &BD718XX_HWOPNAME(bd718xx_pickable_range_buck_ops), |
720 | &BD718XX_HWOPNAME(bd718xx_buck_regulator_nolinear_ops), |
721 | &BD718XX_HWOPNAME(bd718xx_buck_regulator_ops), |
722 | &BD718XX_HWOPNAME(bd718xx_pickable_range_ldo_ops), |
723 | &BD718XX_HWOPNAME(bd718xx_ldo_regulator_nolinear_ops), |
724 | &BD718XX_HWOPNAME(bd718xx_ldo_regulator_ops), |
725 | &BD718XX_HWOPNAME(bd718xx_ldo_regulator_ops), |
726 | &bd718xx_ldo5_ops_hwstate, |
727 | &BD718XX_HWOPNAME(bd718xx_ldo_regulator_ops), |
728 | }; |
729 | |
730 | static struct bd718xx_regulator_data bd71847_regulators[] = { |
731 | { |
732 | .desc = { |
733 | .name = "buck1" , |
734 | .of_match = of_match_ptr("BUCK1" ), |
735 | .regulators_node = of_match_ptr("regulators" ), |
736 | .id = BD718XX_BUCK1, |
737 | .type = REGULATOR_VOLTAGE, |
738 | .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, |
739 | .linear_ranges = bd718xx_dvs_buck_volts, |
740 | .n_linear_ranges = |
741 | ARRAY_SIZE(bd718xx_dvs_buck_volts), |
742 | .vsel_reg = BD718XX_REG_BUCK1_VOLT_RUN, |
743 | .vsel_mask = DVS_BUCK_RUN_MASK, |
744 | .enable_reg = BD718XX_REG_BUCK1_CTRL, |
745 | .enable_mask = BD718XX_BUCK_EN, |
746 | .enable_time = BD71847_BUCK1_STARTUP_TIME, |
747 | .owner = THIS_MODULE, |
748 | .ramp_delay_table = bd718xx_ramp_delay, |
749 | .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), |
750 | .ramp_reg = BD718XX_REG_BUCK1_CTRL, |
751 | .ramp_mask = BUCK_RAMPRATE_MASK, |
752 | .of_parse_cb = buck_set_hw_dvs_levels, |
753 | }, |
754 | .dvs = { |
755 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
756 | ROHM_DVS_LEVEL_SUSPEND, |
757 | .run_reg = BD718XX_REG_BUCK1_VOLT_RUN, |
758 | .run_mask = DVS_BUCK_RUN_MASK, |
759 | .idle_reg = BD718XX_REG_BUCK1_VOLT_IDLE, |
760 | .idle_mask = DVS_BUCK_RUN_MASK, |
761 | .suspend_reg = BD718XX_REG_BUCK1_VOLT_SUSP, |
762 | .suspend_mask = DVS_BUCK_RUN_MASK, |
763 | }, |
764 | .init = { |
765 | .reg = BD718XX_REG_BUCK1_CTRL, |
766 | .mask = BD718XX_BUCK_SEL, |
767 | .val = BD718XX_BUCK_SEL, |
768 | }, |
769 | }, |
770 | { |
771 | .desc = { |
772 | .name = "buck2" , |
773 | .of_match = of_match_ptr("BUCK2" ), |
774 | .regulators_node = of_match_ptr("regulators" ), |
775 | .id = BD718XX_BUCK2, |
776 | .type = REGULATOR_VOLTAGE, |
777 | .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, |
778 | .linear_ranges = bd718xx_dvs_buck_volts, |
779 | .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), |
780 | .vsel_reg = BD718XX_REG_BUCK2_VOLT_RUN, |
781 | .vsel_mask = DVS_BUCK_RUN_MASK, |
782 | .enable_reg = BD718XX_REG_BUCK2_CTRL, |
783 | .enable_mask = BD718XX_BUCK_EN, |
784 | .enable_time = BD71847_BUCK2_STARTUP_TIME, |
785 | .ramp_delay_table = bd718xx_ramp_delay, |
786 | .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), |
787 | .ramp_reg = BD718XX_REG_BUCK2_CTRL, |
788 | .ramp_mask = BUCK_RAMPRATE_MASK, |
789 | .owner = THIS_MODULE, |
790 | .of_parse_cb = buck_set_hw_dvs_levels, |
791 | }, |
792 | .dvs = { |
793 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE, |
794 | .run_reg = BD718XX_REG_BUCK2_VOLT_RUN, |
795 | .run_mask = DVS_BUCK_RUN_MASK, |
796 | .idle_reg = BD718XX_REG_BUCK2_VOLT_IDLE, |
797 | .idle_mask = DVS_BUCK_RUN_MASK, |
798 | }, |
799 | .init = { |
800 | .reg = BD718XX_REG_BUCK2_CTRL, |
801 | .mask = BD718XX_BUCK_SEL, |
802 | .val = BD718XX_BUCK_SEL, |
803 | }, |
804 | }, |
805 | { |
806 | .desc = { |
807 | .name = "buck3" , |
808 | .of_match = of_match_ptr("BUCK3" ), |
809 | .regulators_node = of_match_ptr("regulators" ), |
810 | .id = BD718XX_BUCK3, |
811 | .type = REGULATOR_VOLTAGE, |
812 | .n_voltages = BD71847_BUCK3_VOLTAGE_NUM, |
813 | .linear_ranges = bd71847_buck3_volts, |
814 | .n_linear_ranges = |
815 | ARRAY_SIZE(bd71847_buck3_volts), |
816 | .vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, |
817 | .vsel_mask = BD718XX_1ST_NODVS_BUCK_MASK, |
818 | .vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, |
819 | .vsel_range_mask = BD71847_BUCK3_RANGE_MASK, |
820 | .linear_range_selectors_bitfield = bd71847_buck3_volt_range_sel, |
821 | .enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, |
822 | .enable_mask = BD718XX_BUCK_EN, |
823 | .enable_time = BD71847_BUCK3_STARTUP_TIME, |
824 | .owner = THIS_MODULE, |
825 | }, |
826 | .init = { |
827 | .reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, |
828 | .mask = BD718XX_BUCK_SEL, |
829 | .val = BD718XX_BUCK_SEL, |
830 | }, |
831 | }, |
832 | { |
833 | .desc = { |
834 | .name = "buck4" , |
835 | .of_match = of_match_ptr("BUCK4" ), |
836 | .regulators_node = of_match_ptr("regulators" ), |
837 | .id = BD718XX_BUCK4, |
838 | .type = REGULATOR_VOLTAGE, |
839 | .n_voltages = BD71847_BUCK4_VOLTAGE_NUM, |
840 | .linear_ranges = bd71847_buck4_volts, |
841 | .n_linear_ranges = |
842 | ARRAY_SIZE(bd71847_buck4_volts), |
843 | .enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, |
844 | .vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, |
845 | .vsel_mask = BD71847_BUCK4_MASK, |
846 | .vsel_range_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, |
847 | .vsel_range_mask = BD71847_BUCK4_RANGE_MASK, |
848 | .linear_range_selectors_bitfield = bd71847_buck4_volt_range_sel, |
849 | .enable_mask = BD718XX_BUCK_EN, |
850 | .enable_time = BD71847_BUCK4_STARTUP_TIME, |
851 | .owner = THIS_MODULE, |
852 | }, |
853 | .init = { |
854 | .reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, |
855 | .mask = BD718XX_BUCK_SEL, |
856 | .val = BD718XX_BUCK_SEL, |
857 | }, |
858 | }, |
859 | { |
860 | .desc = { |
861 | .name = "buck5" , |
862 | .of_match = of_match_ptr("BUCK5" ), |
863 | .regulators_node = of_match_ptr("regulators" ), |
864 | .id = BD718XX_BUCK5, |
865 | .type = REGULATOR_VOLTAGE, |
866 | .volt_table = &bd718xx_3rd_nodvs_buck_volts[0], |
867 | .n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts), |
868 | .vsel_reg = BD718XX_REG_3RD_NODVS_BUCK_VOLT, |
869 | .vsel_mask = BD718XX_3RD_NODVS_BUCK_MASK, |
870 | .enable_reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, |
871 | .enable_mask = BD718XX_BUCK_EN, |
872 | .enable_time = BD71847_BUCK5_STARTUP_TIME, |
873 | .owner = THIS_MODULE, |
874 | }, |
875 | .init = { |
876 | .reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, |
877 | .mask = BD718XX_BUCK_SEL, |
878 | .val = BD718XX_BUCK_SEL, |
879 | }, |
880 | }, |
881 | { |
882 | .desc = { |
883 | .name = "buck6" , |
884 | .of_match = of_match_ptr("BUCK6" ), |
885 | .regulators_node = of_match_ptr("regulators" ), |
886 | .id = BD718XX_BUCK6, |
887 | .type = REGULATOR_VOLTAGE, |
888 | .n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM, |
889 | .linear_ranges = bd718xx_4th_nodvs_buck_volts, |
890 | .n_linear_ranges = |
891 | ARRAY_SIZE(bd718xx_4th_nodvs_buck_volts), |
892 | .vsel_reg = BD718XX_REG_4TH_NODVS_BUCK_VOLT, |
893 | .vsel_mask = BD718XX_4TH_NODVS_BUCK_MASK, |
894 | .enable_reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, |
895 | .enable_mask = BD718XX_BUCK_EN, |
896 | .enable_time = BD71847_BUCK6_STARTUP_TIME, |
897 | .owner = THIS_MODULE, |
898 | }, |
899 | .init = { |
900 | .reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, |
901 | .mask = BD718XX_BUCK_SEL, |
902 | .val = BD718XX_BUCK_SEL, |
903 | }, |
904 | }, |
905 | { |
906 | .desc = { |
907 | .name = "ldo1" , |
908 | .of_match = of_match_ptr("LDO1" ), |
909 | .regulators_node = of_match_ptr("regulators" ), |
910 | .id = BD718XX_LDO1, |
911 | .type = REGULATOR_VOLTAGE, |
912 | .n_voltages = BD718XX_LDO1_VOLTAGE_NUM, |
913 | .linear_ranges = bd718xx_ldo1_volts, |
914 | .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo1_volts), |
915 | .vsel_reg = BD718XX_REG_LDO1_VOLT, |
916 | .vsel_mask = BD718XX_LDO1_MASK, |
917 | .vsel_range_reg = BD718XX_REG_LDO1_VOLT, |
918 | .vsel_range_mask = BD718XX_LDO1_RANGE_MASK, |
919 | .linear_range_selectors_bitfield = bd718xx_ldo1_volt_range_sel, |
920 | .enable_reg = BD718XX_REG_LDO1_VOLT, |
921 | .enable_mask = BD718XX_LDO_EN, |
922 | .enable_time = BD71847_LDO1_STARTUP_TIME, |
923 | .owner = THIS_MODULE, |
924 | }, |
925 | .init = { |
926 | .reg = BD718XX_REG_LDO1_VOLT, |
927 | .mask = BD718XX_LDO_SEL, |
928 | .val = BD718XX_LDO_SEL, |
929 | }, |
930 | }, |
931 | { |
932 | .desc = { |
933 | .name = "ldo2" , |
934 | .of_match = of_match_ptr("LDO2" ), |
935 | .regulators_node = of_match_ptr("regulators" ), |
936 | .id = BD718XX_LDO2, |
937 | .type = REGULATOR_VOLTAGE, |
938 | .volt_table = &ldo_2_volts[0], |
939 | .vsel_reg = BD718XX_REG_LDO2_VOLT, |
940 | .vsel_mask = BD718XX_LDO2_MASK, |
941 | .n_voltages = ARRAY_SIZE(ldo_2_volts), |
942 | .enable_reg = BD718XX_REG_LDO2_VOLT, |
943 | .enable_mask = BD718XX_LDO_EN, |
944 | .enable_time = BD71847_LDO2_STARTUP_TIME, |
945 | .owner = THIS_MODULE, |
946 | }, |
947 | .init = { |
948 | .reg = BD718XX_REG_LDO2_VOLT, |
949 | .mask = BD718XX_LDO_SEL, |
950 | .val = BD718XX_LDO_SEL, |
951 | }, |
952 | }, |
953 | { |
954 | .desc = { |
955 | .name = "ldo3" , |
956 | .of_match = of_match_ptr("LDO3" ), |
957 | .regulators_node = of_match_ptr("regulators" ), |
958 | .id = BD718XX_LDO3, |
959 | .type = REGULATOR_VOLTAGE, |
960 | .n_voltages = BD718XX_LDO3_VOLTAGE_NUM, |
961 | .linear_ranges = bd718xx_ldo3_volts, |
962 | .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo3_volts), |
963 | .vsel_reg = BD718XX_REG_LDO3_VOLT, |
964 | .vsel_mask = BD718XX_LDO3_MASK, |
965 | .enable_reg = BD718XX_REG_LDO3_VOLT, |
966 | .enable_mask = BD718XX_LDO_EN, |
967 | .enable_time = BD71847_LDO3_STARTUP_TIME, |
968 | .owner = THIS_MODULE, |
969 | }, |
970 | .init = { |
971 | .reg = BD718XX_REG_LDO3_VOLT, |
972 | .mask = BD718XX_LDO_SEL, |
973 | .val = BD718XX_LDO_SEL, |
974 | }, |
975 | }, |
976 | { |
977 | .desc = { |
978 | .name = "ldo4" , |
979 | .of_match = of_match_ptr("LDO4" ), |
980 | .regulators_node = of_match_ptr("regulators" ), |
981 | .id = BD718XX_LDO4, |
982 | .type = REGULATOR_VOLTAGE, |
983 | .n_voltages = BD718XX_LDO4_VOLTAGE_NUM, |
984 | .linear_ranges = bd718xx_ldo4_volts, |
985 | .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo4_volts), |
986 | .vsel_reg = BD718XX_REG_LDO4_VOLT, |
987 | .vsel_mask = BD718XX_LDO4_MASK, |
988 | .enable_reg = BD718XX_REG_LDO4_VOLT, |
989 | .enable_mask = BD718XX_LDO_EN, |
990 | .enable_time = BD71847_LDO4_STARTUP_TIME, |
991 | .owner = THIS_MODULE, |
992 | }, |
993 | .init = { |
994 | .reg = BD718XX_REG_LDO4_VOLT, |
995 | .mask = BD718XX_LDO_SEL, |
996 | .val = BD718XX_LDO_SEL, |
997 | }, |
998 | }, |
999 | { |
1000 | .desc = { |
1001 | .name = "ldo5" , |
1002 | .of_match = of_match_ptr("LDO5" ), |
1003 | .regulators_node = of_match_ptr("regulators" ), |
1004 | .id = BD718XX_LDO5, |
1005 | .type = REGULATOR_VOLTAGE, |
1006 | .n_voltages = BD71847_LDO5_VOLTAGE_NUM, |
1007 | .linear_ranges = bd71847_ldo5_volts, |
1008 | .n_linear_ranges = ARRAY_SIZE(bd71847_ldo5_volts), |
1009 | .vsel_reg = BD718XX_REG_LDO5_VOLT, |
1010 | .vsel_mask = BD71847_LDO5_MASK, |
1011 | .vsel_range_reg = BD718XX_REG_LDO5_VOLT, |
1012 | .vsel_range_mask = BD71847_LDO5_RANGE_MASK, |
1013 | .linear_range_selectors_bitfield = bd71847_ldo5_volt_range_sel, |
1014 | .enable_reg = BD718XX_REG_LDO5_VOLT, |
1015 | .enable_mask = BD718XX_LDO_EN, |
1016 | .enable_time = BD71847_LDO5_STARTUP_TIME, |
1017 | .owner = THIS_MODULE, |
1018 | }, |
1019 | .init = { |
1020 | .reg = BD718XX_REG_LDO5_VOLT, |
1021 | .mask = BD718XX_LDO_SEL, |
1022 | .val = BD718XX_LDO_SEL, |
1023 | }, |
1024 | }, |
1025 | { |
1026 | .desc = { |
1027 | .name = "ldo6" , |
1028 | .of_match = of_match_ptr("LDO6" ), |
1029 | .regulators_node = of_match_ptr("regulators" ), |
1030 | .id = BD718XX_LDO6, |
1031 | .type = REGULATOR_VOLTAGE, |
1032 | .n_voltages = BD718XX_LDO6_VOLTAGE_NUM, |
1033 | .linear_ranges = bd718xx_ldo6_volts, |
1034 | .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo6_volts), |
1035 | /* LDO6 is supplied by buck5 */ |
1036 | .supply_name = "buck5" , |
1037 | .vsel_reg = BD718XX_REG_LDO6_VOLT, |
1038 | .vsel_mask = BD718XX_LDO6_MASK, |
1039 | .enable_reg = BD718XX_REG_LDO6_VOLT, |
1040 | .enable_mask = BD718XX_LDO_EN, |
1041 | .enable_time = BD71847_LDO6_STARTUP_TIME, |
1042 | .owner = THIS_MODULE, |
1043 | }, |
1044 | .init = { |
1045 | .reg = BD718XX_REG_LDO6_VOLT, |
1046 | .mask = BD718XX_LDO_SEL, |
1047 | .val = BD718XX_LDO_SEL, |
1048 | }, |
1049 | }, |
1050 | }; |
1051 | |
1052 | static const struct regulator_ops *bd71837_swcontrol_ops[] = { |
1053 | &bd718xx_dvs_buck_regulator_ops, &bd718xx_dvs_buck_regulator_ops, |
1054 | &bd718xx_dvs_buck_regulator_ops, &bd718xx_dvs_buck_regulator_ops, |
1055 | &bd71837_pickable_range_buck_ops, &bd71837_buck_regulator_ops, |
1056 | &bd71837_buck_regulator_nolinear_ops, &bd71837_buck_regulator_ops, |
1057 | &bd71837_pickable_range_ldo_ops, &bd71837_ldo_regulator_nolinear_ops, |
1058 | &bd71837_ldo_regulator_ops, &bd71837_ldo_regulator_ops, |
1059 | &bd71837_ldo_regulator_ops, &bd71837_ldo_regulator_ops, |
1060 | &bd71837_ldo_regulator_ops, |
1061 | }; |
1062 | |
1063 | static const struct regulator_ops *bd71837_hwcontrol_ops[] = { |
1064 | &BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops), |
1065 | &BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops), |
1066 | &bd71837_buck34_ops_hwctrl, &bd71837_buck34_ops_hwctrl, |
1067 | &BD718XX_HWOPNAME(bd71837_pickable_range_buck_ops), |
1068 | &BD718XX_HWOPNAME(bd71837_buck_regulator_ops), |
1069 | &BD718XX_HWOPNAME(bd71837_buck_regulator_nolinear_ops), |
1070 | &BD718XX_HWOPNAME(bd71837_buck_regulator_ops), |
1071 | &BD718XX_HWOPNAME(bd71837_pickable_range_ldo_ops), |
1072 | &BD718XX_HWOPNAME(bd71837_ldo_regulator_nolinear_ops), |
1073 | &BD718XX_HWOPNAME(bd71837_ldo_regulator_ops), |
1074 | &BD718XX_HWOPNAME(bd71837_ldo_regulator_ops), |
1075 | &BD718XX_HWOPNAME(bd71837_ldo_regulator_ops), |
1076 | &BD718XX_HWOPNAME(bd71837_ldo_regulator_ops), |
1077 | &BD718XX_HWOPNAME(bd71837_ldo_regulator_ops), |
1078 | }; |
1079 | |
1080 | static struct bd718xx_regulator_data bd71837_regulators[] = { |
1081 | { |
1082 | .desc = { |
1083 | .name = "buck1" , |
1084 | .of_match = of_match_ptr("BUCK1" ), |
1085 | .regulators_node = of_match_ptr("regulators" ), |
1086 | .id = BD718XX_BUCK1, |
1087 | .type = REGULATOR_VOLTAGE, |
1088 | .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, |
1089 | .linear_ranges = bd718xx_dvs_buck_volts, |
1090 | .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), |
1091 | .vsel_reg = BD718XX_REG_BUCK1_VOLT_RUN, |
1092 | .vsel_mask = DVS_BUCK_RUN_MASK, |
1093 | .enable_reg = BD718XX_REG_BUCK1_CTRL, |
1094 | .enable_mask = BD718XX_BUCK_EN, |
1095 | .enable_time = BD71837_BUCK1_STARTUP_TIME, |
1096 | .ramp_delay_table = bd718xx_ramp_delay, |
1097 | .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), |
1098 | .ramp_reg = BD718XX_REG_BUCK1_CTRL, |
1099 | .ramp_mask = BUCK_RAMPRATE_MASK, |
1100 | .owner = THIS_MODULE, |
1101 | .of_parse_cb = buck_set_hw_dvs_levels, |
1102 | }, |
1103 | .dvs = { |
1104 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
1105 | ROHM_DVS_LEVEL_SUSPEND, |
1106 | .run_reg = BD718XX_REG_BUCK1_VOLT_RUN, |
1107 | .run_mask = DVS_BUCK_RUN_MASK, |
1108 | .idle_reg = BD718XX_REG_BUCK1_VOLT_IDLE, |
1109 | .idle_mask = DVS_BUCK_RUN_MASK, |
1110 | .suspend_reg = BD718XX_REG_BUCK1_VOLT_SUSP, |
1111 | .suspend_mask = DVS_BUCK_RUN_MASK, |
1112 | }, |
1113 | .init = { |
1114 | .reg = BD718XX_REG_BUCK1_CTRL, |
1115 | .mask = BD718XX_BUCK_SEL, |
1116 | .val = BD718XX_BUCK_SEL, |
1117 | }, |
1118 | }, |
1119 | { |
1120 | .desc = { |
1121 | .name = "buck2" , |
1122 | .of_match = of_match_ptr("BUCK2" ), |
1123 | .regulators_node = of_match_ptr("regulators" ), |
1124 | .id = BD718XX_BUCK2, |
1125 | .type = REGULATOR_VOLTAGE, |
1126 | .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, |
1127 | .linear_ranges = bd718xx_dvs_buck_volts, |
1128 | .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), |
1129 | .vsel_reg = BD718XX_REG_BUCK2_VOLT_RUN, |
1130 | .vsel_mask = DVS_BUCK_RUN_MASK, |
1131 | .enable_reg = BD718XX_REG_BUCK2_CTRL, |
1132 | .enable_mask = BD718XX_BUCK_EN, |
1133 | .enable_time = BD71837_BUCK2_STARTUP_TIME, |
1134 | .ramp_delay_table = bd718xx_ramp_delay, |
1135 | .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), |
1136 | .ramp_reg = BD718XX_REG_BUCK2_CTRL, |
1137 | .ramp_mask = BUCK_RAMPRATE_MASK, |
1138 | .owner = THIS_MODULE, |
1139 | .of_parse_cb = buck_set_hw_dvs_levels, |
1140 | }, |
1141 | .dvs = { |
1142 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE, |
1143 | .run_reg = BD718XX_REG_BUCK2_VOLT_RUN, |
1144 | .run_mask = DVS_BUCK_RUN_MASK, |
1145 | .idle_reg = BD718XX_REG_BUCK2_VOLT_IDLE, |
1146 | .idle_mask = DVS_BUCK_RUN_MASK, |
1147 | }, |
1148 | .init = { |
1149 | .reg = BD718XX_REG_BUCK2_CTRL, |
1150 | .mask = BD718XX_BUCK_SEL, |
1151 | .val = BD718XX_BUCK_SEL, |
1152 | }, |
1153 | }, |
1154 | { |
1155 | .desc = { |
1156 | .name = "buck3" , |
1157 | .of_match = of_match_ptr("BUCK3" ), |
1158 | .regulators_node = of_match_ptr("regulators" ), |
1159 | .id = BD718XX_BUCK3, |
1160 | .type = REGULATOR_VOLTAGE, |
1161 | .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, |
1162 | .linear_ranges = bd718xx_dvs_buck_volts, |
1163 | .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), |
1164 | .vsel_reg = BD71837_REG_BUCK3_VOLT_RUN, |
1165 | .vsel_mask = DVS_BUCK_RUN_MASK, |
1166 | .enable_reg = BD71837_REG_BUCK3_CTRL, |
1167 | .enable_mask = BD718XX_BUCK_EN, |
1168 | .enable_time = BD71837_BUCK3_STARTUP_TIME, |
1169 | .ramp_delay_table = bd718xx_ramp_delay, |
1170 | .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), |
1171 | .ramp_reg = BD71837_REG_BUCK3_CTRL, |
1172 | .ramp_mask = BUCK_RAMPRATE_MASK, |
1173 | .owner = THIS_MODULE, |
1174 | .of_parse_cb = buck_set_hw_dvs_levels, |
1175 | }, |
1176 | .dvs = { |
1177 | .level_map = ROHM_DVS_LEVEL_RUN, |
1178 | .run_reg = BD71837_REG_BUCK3_VOLT_RUN, |
1179 | .run_mask = DVS_BUCK_RUN_MASK, |
1180 | }, |
1181 | .init = { |
1182 | .reg = BD71837_REG_BUCK3_CTRL, |
1183 | .mask = BD718XX_BUCK_SEL, |
1184 | .val = BD718XX_BUCK_SEL, |
1185 | }, |
1186 | }, |
1187 | { |
1188 | .desc = { |
1189 | .name = "buck4" , |
1190 | .of_match = of_match_ptr("BUCK4" ), |
1191 | .regulators_node = of_match_ptr("regulators" ), |
1192 | .id = BD718XX_BUCK4, |
1193 | .type = REGULATOR_VOLTAGE, |
1194 | .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, |
1195 | .linear_ranges = bd718xx_dvs_buck_volts, |
1196 | .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), |
1197 | .vsel_reg = BD71837_REG_BUCK4_VOLT_RUN, |
1198 | .vsel_mask = DVS_BUCK_RUN_MASK, |
1199 | .enable_reg = BD71837_REG_BUCK4_CTRL, |
1200 | .enable_mask = BD718XX_BUCK_EN, |
1201 | .enable_time = BD71837_BUCK4_STARTUP_TIME, |
1202 | .ramp_delay_table = bd718xx_ramp_delay, |
1203 | .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), |
1204 | .ramp_reg = BD71837_REG_BUCK4_CTRL, |
1205 | .ramp_mask = BUCK_RAMPRATE_MASK, |
1206 | .owner = THIS_MODULE, |
1207 | .of_parse_cb = buck_set_hw_dvs_levels, |
1208 | }, |
1209 | .dvs = { |
1210 | .level_map = ROHM_DVS_LEVEL_RUN, |
1211 | .run_reg = BD71837_REG_BUCK4_VOLT_RUN, |
1212 | .run_mask = DVS_BUCK_RUN_MASK, |
1213 | }, |
1214 | .init = { |
1215 | .reg = BD71837_REG_BUCK4_CTRL, |
1216 | .mask = BD718XX_BUCK_SEL, |
1217 | .val = BD718XX_BUCK_SEL, |
1218 | }, |
1219 | }, |
1220 | { |
1221 | .desc = { |
1222 | .name = "buck5" , |
1223 | .of_match = of_match_ptr("BUCK5" ), |
1224 | .regulators_node = of_match_ptr("regulators" ), |
1225 | .id = BD718XX_BUCK5, |
1226 | .type = REGULATOR_VOLTAGE, |
1227 | .n_voltages = BD71837_BUCK5_VOLTAGE_NUM, |
1228 | .linear_ranges = bd71837_buck5_volts, |
1229 | .n_linear_ranges = |
1230 | ARRAY_SIZE(bd71837_buck5_volts), |
1231 | .vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, |
1232 | .vsel_mask = BD71837_BUCK5_MASK, |
1233 | .vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, |
1234 | .vsel_range_mask = BD71837_BUCK5_RANGE_MASK, |
1235 | .linear_range_selectors_bitfield = bd71837_buck5_volt_range_sel, |
1236 | .enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, |
1237 | .enable_mask = BD718XX_BUCK_EN, |
1238 | .enable_time = BD71837_BUCK5_STARTUP_TIME, |
1239 | .owner = THIS_MODULE, |
1240 | }, |
1241 | .init = { |
1242 | .reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, |
1243 | .mask = BD718XX_BUCK_SEL, |
1244 | .val = BD718XX_BUCK_SEL, |
1245 | }, |
1246 | }, |
1247 | { |
1248 | .desc = { |
1249 | .name = "buck6" , |
1250 | .of_match = of_match_ptr("BUCK6" ), |
1251 | .regulators_node = of_match_ptr("regulators" ), |
1252 | .id = BD718XX_BUCK6, |
1253 | .type = REGULATOR_VOLTAGE, |
1254 | .n_voltages = BD71837_BUCK6_VOLTAGE_NUM, |
1255 | .linear_ranges = bd71837_buck6_volts, |
1256 | .n_linear_ranges = |
1257 | ARRAY_SIZE(bd71837_buck6_volts), |
1258 | .vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, |
1259 | .vsel_mask = BD71837_BUCK6_MASK, |
1260 | .enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, |
1261 | .enable_mask = BD718XX_BUCK_EN, |
1262 | .enable_time = BD71837_BUCK6_STARTUP_TIME, |
1263 | .owner = THIS_MODULE, |
1264 | }, |
1265 | .init = { |
1266 | .reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, |
1267 | .mask = BD718XX_BUCK_SEL, |
1268 | .val = BD718XX_BUCK_SEL, |
1269 | }, |
1270 | }, |
1271 | { |
1272 | .desc = { |
1273 | .name = "buck7" , |
1274 | .of_match = of_match_ptr("BUCK7" ), |
1275 | .regulators_node = of_match_ptr("regulators" ), |
1276 | .id = BD718XX_BUCK7, |
1277 | .type = REGULATOR_VOLTAGE, |
1278 | .volt_table = &bd718xx_3rd_nodvs_buck_volts[0], |
1279 | .n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts), |
1280 | .vsel_reg = BD718XX_REG_3RD_NODVS_BUCK_VOLT, |
1281 | .vsel_mask = BD718XX_3RD_NODVS_BUCK_MASK, |
1282 | .enable_reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, |
1283 | .enable_mask = BD718XX_BUCK_EN, |
1284 | .enable_time = BD71837_BUCK7_STARTUP_TIME, |
1285 | .owner = THIS_MODULE, |
1286 | }, |
1287 | .init = { |
1288 | .reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, |
1289 | .mask = BD718XX_BUCK_SEL, |
1290 | .val = BD718XX_BUCK_SEL, |
1291 | }, |
1292 | }, |
1293 | { |
1294 | .desc = { |
1295 | .name = "buck8" , |
1296 | .of_match = of_match_ptr("BUCK8" ), |
1297 | .regulators_node = of_match_ptr("regulators" ), |
1298 | .id = BD718XX_BUCK8, |
1299 | .type = REGULATOR_VOLTAGE, |
1300 | .n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM, |
1301 | .linear_ranges = bd718xx_4th_nodvs_buck_volts, |
1302 | .n_linear_ranges = |
1303 | ARRAY_SIZE(bd718xx_4th_nodvs_buck_volts), |
1304 | .vsel_reg = BD718XX_REG_4TH_NODVS_BUCK_VOLT, |
1305 | .vsel_mask = BD718XX_4TH_NODVS_BUCK_MASK, |
1306 | .enable_reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, |
1307 | .enable_mask = BD718XX_BUCK_EN, |
1308 | .enable_time = BD71837_BUCK8_STARTUP_TIME, |
1309 | .owner = THIS_MODULE, |
1310 | }, |
1311 | .init = { |
1312 | .reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, |
1313 | .mask = BD718XX_BUCK_SEL, |
1314 | .val = BD718XX_BUCK_SEL, |
1315 | }, |
1316 | }, |
1317 | { |
1318 | .desc = { |
1319 | .name = "ldo1" , |
1320 | .of_match = of_match_ptr("LDO1" ), |
1321 | .regulators_node = of_match_ptr("regulators" ), |
1322 | .id = BD718XX_LDO1, |
1323 | .type = REGULATOR_VOLTAGE, |
1324 | .n_voltages = BD718XX_LDO1_VOLTAGE_NUM, |
1325 | .linear_ranges = bd718xx_ldo1_volts, |
1326 | .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo1_volts), |
1327 | .vsel_reg = BD718XX_REG_LDO1_VOLT, |
1328 | .vsel_mask = BD718XX_LDO1_MASK, |
1329 | .vsel_range_reg = BD718XX_REG_LDO1_VOLT, |
1330 | .vsel_range_mask = BD718XX_LDO1_RANGE_MASK, |
1331 | .linear_range_selectors_bitfield = bd718xx_ldo1_volt_range_sel, |
1332 | .enable_reg = BD718XX_REG_LDO1_VOLT, |
1333 | .enable_mask = BD718XX_LDO_EN, |
1334 | .enable_time = BD71837_LDO1_STARTUP_TIME, |
1335 | .owner = THIS_MODULE, |
1336 | }, |
1337 | .init = { |
1338 | .reg = BD718XX_REG_LDO1_VOLT, |
1339 | .mask = BD718XX_LDO_SEL, |
1340 | .val = BD718XX_LDO_SEL, |
1341 | }, |
1342 | }, |
1343 | { |
1344 | .desc = { |
1345 | .name = "ldo2" , |
1346 | .of_match = of_match_ptr("LDO2" ), |
1347 | .regulators_node = of_match_ptr("regulators" ), |
1348 | .id = BD718XX_LDO2, |
1349 | .type = REGULATOR_VOLTAGE, |
1350 | .volt_table = &ldo_2_volts[0], |
1351 | .vsel_reg = BD718XX_REG_LDO2_VOLT, |
1352 | .vsel_mask = BD718XX_LDO2_MASK, |
1353 | .n_voltages = ARRAY_SIZE(ldo_2_volts), |
1354 | .enable_reg = BD718XX_REG_LDO2_VOLT, |
1355 | .enable_mask = BD718XX_LDO_EN, |
1356 | .enable_time = BD71837_LDO2_STARTUP_TIME, |
1357 | .owner = THIS_MODULE, |
1358 | }, |
1359 | .init = { |
1360 | .reg = BD718XX_REG_LDO2_VOLT, |
1361 | .mask = BD718XX_LDO_SEL, |
1362 | .val = BD718XX_LDO_SEL, |
1363 | }, |
1364 | }, |
1365 | { |
1366 | .desc = { |
1367 | .name = "ldo3" , |
1368 | .of_match = of_match_ptr("LDO3" ), |
1369 | .regulators_node = of_match_ptr("regulators" ), |
1370 | .id = BD718XX_LDO3, |
1371 | .type = REGULATOR_VOLTAGE, |
1372 | .n_voltages = BD718XX_LDO3_VOLTAGE_NUM, |
1373 | .linear_ranges = bd718xx_ldo3_volts, |
1374 | .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo3_volts), |
1375 | .vsel_reg = BD718XX_REG_LDO3_VOLT, |
1376 | .vsel_mask = BD718XX_LDO3_MASK, |
1377 | .enable_reg = BD718XX_REG_LDO3_VOLT, |
1378 | .enable_mask = BD718XX_LDO_EN, |
1379 | .enable_time = BD71837_LDO3_STARTUP_TIME, |
1380 | .owner = THIS_MODULE, |
1381 | }, |
1382 | .init = { |
1383 | .reg = BD718XX_REG_LDO3_VOLT, |
1384 | .mask = BD718XX_LDO_SEL, |
1385 | .val = BD718XX_LDO_SEL, |
1386 | }, |
1387 | }, |
1388 | { |
1389 | .desc = { |
1390 | .name = "ldo4" , |
1391 | .of_match = of_match_ptr("LDO4" ), |
1392 | .regulators_node = of_match_ptr("regulators" ), |
1393 | .id = BD718XX_LDO4, |
1394 | .type = REGULATOR_VOLTAGE, |
1395 | .n_voltages = BD718XX_LDO4_VOLTAGE_NUM, |
1396 | .linear_ranges = bd718xx_ldo4_volts, |
1397 | .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo4_volts), |
1398 | .vsel_reg = BD718XX_REG_LDO4_VOLT, |
1399 | .vsel_mask = BD718XX_LDO4_MASK, |
1400 | .enable_reg = BD718XX_REG_LDO4_VOLT, |
1401 | .enable_mask = BD718XX_LDO_EN, |
1402 | .enable_time = BD71837_LDO4_STARTUP_TIME, |
1403 | .owner = THIS_MODULE, |
1404 | }, |
1405 | .init = { |
1406 | .reg = BD718XX_REG_LDO4_VOLT, |
1407 | .mask = BD718XX_LDO_SEL, |
1408 | .val = BD718XX_LDO_SEL, |
1409 | }, |
1410 | }, |
1411 | { |
1412 | .desc = { |
1413 | .name = "ldo5" , |
1414 | .of_match = of_match_ptr("LDO5" ), |
1415 | .regulators_node = of_match_ptr("regulators" ), |
1416 | .id = BD718XX_LDO5, |
1417 | .type = REGULATOR_VOLTAGE, |
1418 | .n_voltages = BD71837_LDO5_VOLTAGE_NUM, |
1419 | .linear_ranges = bd71837_ldo5_volts, |
1420 | .n_linear_ranges = ARRAY_SIZE(bd71837_ldo5_volts), |
1421 | /* LDO5 is supplied by buck6 */ |
1422 | .supply_name = "buck6" , |
1423 | .vsel_reg = BD718XX_REG_LDO5_VOLT, |
1424 | .vsel_mask = BD71837_LDO5_MASK, |
1425 | .enable_reg = BD718XX_REG_LDO5_VOLT, |
1426 | .enable_mask = BD718XX_LDO_EN, |
1427 | .enable_time = BD71837_LDO5_STARTUP_TIME, |
1428 | .owner = THIS_MODULE, |
1429 | }, |
1430 | .init = { |
1431 | .reg = BD718XX_REG_LDO5_VOLT, |
1432 | .mask = BD718XX_LDO_SEL, |
1433 | .val = BD718XX_LDO_SEL, |
1434 | }, |
1435 | .additional_inits = bd71837_ldo5_inits, |
1436 | .additional_init_amnt = ARRAY_SIZE(bd71837_ldo5_inits), |
1437 | }, |
1438 | { |
1439 | .desc = { |
1440 | .name = "ldo6" , |
1441 | .of_match = of_match_ptr("LDO6" ), |
1442 | .regulators_node = of_match_ptr("regulators" ), |
1443 | .id = BD718XX_LDO6, |
1444 | .type = REGULATOR_VOLTAGE, |
1445 | .n_voltages = BD718XX_LDO6_VOLTAGE_NUM, |
1446 | .linear_ranges = bd718xx_ldo6_volts, |
1447 | .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo6_volts), |
1448 | /* LDO6 is supplied by buck7 */ |
1449 | .supply_name = "buck7" , |
1450 | .vsel_reg = BD718XX_REG_LDO6_VOLT, |
1451 | .vsel_mask = BD718XX_LDO6_MASK, |
1452 | .enable_reg = BD718XX_REG_LDO6_VOLT, |
1453 | .enable_mask = BD718XX_LDO_EN, |
1454 | .enable_time = BD71837_LDO6_STARTUP_TIME, |
1455 | .owner = THIS_MODULE, |
1456 | }, |
1457 | .init = { |
1458 | .reg = BD718XX_REG_LDO6_VOLT, |
1459 | .mask = BD718XX_LDO_SEL, |
1460 | .val = BD718XX_LDO_SEL, |
1461 | }, |
1462 | .additional_inits = bd71837_ldo6_inits, |
1463 | .additional_init_amnt = ARRAY_SIZE(bd71837_ldo6_inits), |
1464 | }, |
1465 | { |
1466 | .desc = { |
1467 | .name = "ldo7" , |
1468 | .of_match = of_match_ptr("LDO7" ), |
1469 | .regulators_node = of_match_ptr("regulators" ), |
1470 | .id = BD718XX_LDO7, |
1471 | .type = REGULATOR_VOLTAGE, |
1472 | .n_voltages = BD71837_LDO7_VOLTAGE_NUM, |
1473 | .linear_ranges = bd71837_ldo7_volts, |
1474 | .n_linear_ranges = ARRAY_SIZE(bd71837_ldo7_volts), |
1475 | .vsel_reg = BD71837_REG_LDO7_VOLT, |
1476 | .vsel_mask = BD71837_LDO7_MASK, |
1477 | .enable_reg = BD71837_REG_LDO7_VOLT, |
1478 | .enable_mask = BD718XX_LDO_EN, |
1479 | .enable_time = BD71837_LDO7_STARTUP_TIME, |
1480 | .owner = THIS_MODULE, |
1481 | }, |
1482 | .init = { |
1483 | .reg = BD71837_REG_LDO7_VOLT, |
1484 | .mask = BD718XX_LDO_SEL, |
1485 | .val = BD718XX_LDO_SEL, |
1486 | }, |
1487 | }, |
1488 | }; |
1489 | |
1490 | static void mark_hw_controlled(struct device *dev, struct device_node *np, |
1491 | struct bd718xx_regulator_data *reg_data, |
1492 | unsigned int num_reg_data, int *info) |
1493 | { |
1494 | int i; |
1495 | |
1496 | for (i = 1; i <= num_reg_data; i++) { |
1497 | if (!of_node_name_eq(np, name: reg_data[i-1].desc.of_match)) |
1498 | continue; |
1499 | |
1500 | *info |= 1 << (i - 1); |
1501 | dev_dbg(dev, "regulator %d runlevel controlled\n" , i); |
1502 | return; |
1503 | } |
1504 | dev_warn(dev, "Bad regulator node\n" ); |
1505 | } |
1506 | |
1507 | /* |
1508 | * Setups where regulator (especially the buck8) output voltage is scaled |
1509 | * by adding external connection where some other regulator output is connected |
1510 | * to feedback-pin (over suitable resistors) is getting popular amongst users |
1511 | * of BD71837. (This allows for example scaling down the buck8 voltages to suit |
1512 | * lover GPU voltages for projects where buck8 is (ab)used to supply power |
1513 | * for GPU. Additionally some setups do allow DVS for buck8 but as this do |
1514 | * produce voltage spikes the HW must be evaluated to be able to survive this |
1515 | * - hence I keep the DVS disabled for non DVS bucks by default. I don't want |
1516 | * to help you burn your proto board) |
1517 | * |
1518 | * So we allow describing this external connection from DT and scale the |
1519 | * voltages accordingly. This is what the connection should look like: |
1520 | * |
1521 | * |------------| |
1522 | * | buck 8 |-------+----->Vout |
1523 | * | | | |
1524 | * |------------| | |
1525 | * | FB pin | |
1526 | * | | |
1527 | * +-------+--R2---+ |
1528 | * | |
1529 | * R1 |
1530 | * | |
1531 | * V FB-pull-up |
1532 | * |
1533 | * Here the buck output is sifted according to formula: |
1534 | * |
1535 | * Vout_o = Vo - (Vpu - Vo)*R2/R1 |
1536 | * Linear_step = step_orig*(R1+R2)/R1 |
1537 | * |
1538 | * where: |
1539 | * Vout_o is adjusted voltage output at vsel reg value 0 |
1540 | * Vo is original voltage output at vsel reg value 0 |
1541 | * Vpu is the pull-up voltage V FB-pull-up in the picture |
1542 | * R1 and R2 are resistor values. |
1543 | * |
1544 | * As a real world example for buck8 and a specific GPU: |
1545 | * VLDO = 1.6V (used as FB-pull-up) |
1546 | * R1 = 1000ohms |
1547 | * R2 = 150ohms |
1548 | * VSEL 0x0 => 0.8V – (VLDO – 0.8) * R2 / R1 = 0.68V |
1549 | * Linear Step = 10mV * (R1 + R2) / R1 = 11.5mV |
1550 | */ |
1551 | static int setup_feedback_loop(struct device *dev, struct device_node *np, |
1552 | struct bd718xx_regulator_data *reg_data, |
1553 | unsigned int num_reg_data, int fb_uv) |
1554 | { |
1555 | int i, r1, r2, ret; |
1556 | |
1557 | /* |
1558 | * We do adjust the values in the global desc based on DT settings. |
1559 | * This may not be best approach as it can cause problems if more than |
1560 | * one PMIC is controlled from same processor. I don't see such use-case |
1561 | * for BD718x7 now - so we spare some bits. |
1562 | * |
1563 | * If this will point out to be a problem - then we can allocate new |
1564 | * bd718xx_regulator_data array at probe and just use the global |
1565 | * array as a template where we copy initial values. Then we can |
1566 | * use allocated descs for regultor registration and do IC specific |
1567 | * modifications to this copy while leaving other PMICs untouched. But |
1568 | * that means allocating new array for each PMIC - and currently I see |
1569 | * no need for that. |
1570 | */ |
1571 | |
1572 | for (i = 0; i < num_reg_data; i++) { |
1573 | struct regulator_desc *desc = ®_data[i].desc; |
1574 | int j; |
1575 | |
1576 | if (!of_node_name_eq(np, name: desc->of_match)) |
1577 | continue; |
1578 | |
1579 | /* The feedback loop connection does not make sense for LDOs */ |
1580 | if (desc->id >= BD718XX_LDO1) |
1581 | return -EINVAL; |
1582 | |
1583 | ret = of_property_read_u32(np, propname: "rohm,feedback-pull-up-r1-ohms" , |
1584 | out_value: &r1); |
1585 | if (ret) |
1586 | return ret; |
1587 | |
1588 | if (!r1) |
1589 | return -EINVAL; |
1590 | |
1591 | ret = of_property_read_u32(np, propname: "rohm,feedback-pull-up-r2-ohms" , |
1592 | out_value: &r2); |
1593 | if (ret) |
1594 | return ret; |
1595 | |
1596 | if (desc->n_linear_ranges && desc->linear_ranges) { |
1597 | struct linear_range *new; |
1598 | |
1599 | new = devm_kzalloc(dev, size: desc->n_linear_ranges * |
1600 | sizeof(struct linear_range), |
1601 | GFP_KERNEL); |
1602 | if (!new) |
1603 | return -ENOMEM; |
1604 | |
1605 | for (j = 0; j < desc->n_linear_ranges; j++) { |
1606 | int min = desc->linear_ranges[j].min; |
1607 | int step = desc->linear_ranges[j].step; |
1608 | |
1609 | min -= (fb_uv - min)*r2/r1; |
1610 | step = step * (r1 + r2); |
1611 | step /= r1; |
1612 | |
1613 | new[j].min = min; |
1614 | new[j].step = step; |
1615 | |
1616 | dev_dbg(dev, "%s: old range min %d, step %d\n" , |
1617 | desc->name, desc->linear_ranges[j].min, |
1618 | desc->linear_ranges[j].step); |
1619 | dev_dbg(dev, "new range min %d, step %d\n" , min, |
1620 | step); |
1621 | } |
1622 | desc->linear_ranges = new; |
1623 | } |
1624 | dev_dbg(dev, "regulator '%s' has FB pull-up configured\n" , |
1625 | desc->name); |
1626 | |
1627 | return 0; |
1628 | } |
1629 | |
1630 | return -ENODEV; |
1631 | } |
1632 | |
1633 | static int get_special_regulators(struct device *dev, |
1634 | struct bd718xx_regulator_data *reg_data, |
1635 | unsigned int num_reg_data, int *info) |
1636 | { |
1637 | int ret; |
1638 | struct device_node *np; |
1639 | struct device_node *nproot = dev->of_node; |
1640 | int uv; |
1641 | |
1642 | *info = 0; |
1643 | |
1644 | nproot = of_get_child_by_name(node: nproot, name: "regulators" ); |
1645 | if (!nproot) { |
1646 | dev_err(dev, "failed to find regulators node\n" ); |
1647 | return -ENODEV; |
1648 | } |
1649 | for_each_child_of_node(nproot, np) { |
1650 | if (of_property_read_bool(np, propname: "rohm,no-regulator-enable-control" )) |
1651 | mark_hw_controlled(dev, np, reg_data, num_reg_data, |
1652 | info); |
1653 | ret = of_property_read_u32(np, propname: "rohm,fb-pull-up-microvolt" , |
1654 | out_value: &uv); |
1655 | if (ret) { |
1656 | if (ret == -EINVAL) |
1657 | continue; |
1658 | else |
1659 | goto err_out; |
1660 | } |
1661 | |
1662 | ret = setup_feedback_loop(dev, np, reg_data, num_reg_data, fb_uv: uv); |
1663 | if (ret) |
1664 | goto err_out; |
1665 | } |
1666 | |
1667 | of_node_put(node: nproot); |
1668 | return 0; |
1669 | |
1670 | err_out: |
1671 | of_node_put(node: np); |
1672 | of_node_put(node: nproot); |
1673 | |
1674 | return ret; |
1675 | } |
1676 | |
1677 | static int bd718xx_probe(struct platform_device *pdev) |
1678 | { |
1679 | struct regmap *regmap; |
1680 | struct regulator_config config = { 0 }; |
1681 | int i, j, err, omit_enable; |
1682 | bool use_snvs; |
1683 | struct bd718xx_regulator_data *reg_data; |
1684 | unsigned int num_reg_data; |
1685 | enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data; |
1686 | const struct regulator_ops **swops, **hwops; |
1687 | |
1688 | regmap = dev_get_regmap(dev: pdev->dev.parent, NULL); |
1689 | if (!regmap) { |
1690 | dev_err(&pdev->dev, "No MFD driver data\n" ); |
1691 | return -EINVAL; |
1692 | } |
1693 | |
1694 | switch (chip) { |
1695 | case ROHM_CHIP_TYPE_BD71837: |
1696 | reg_data = bd71837_regulators; |
1697 | num_reg_data = ARRAY_SIZE(bd71837_regulators); |
1698 | swops = &bd71837_swcontrol_ops[0]; |
1699 | hwops = &bd71837_hwcontrol_ops[0]; |
1700 | break; |
1701 | case ROHM_CHIP_TYPE_BD71847: |
1702 | reg_data = bd71847_regulators; |
1703 | num_reg_data = ARRAY_SIZE(bd71847_regulators); |
1704 | swops = &bd71847_swcontrol_ops[0]; |
1705 | hwops = &bd71847_hwcontrol_ops[0]; |
1706 | break; |
1707 | default: |
1708 | dev_err(&pdev->dev, "Unsupported chip type\n" ); |
1709 | return -EINVAL; |
1710 | } |
1711 | |
1712 | /* Register LOCK release */ |
1713 | err = regmap_update_bits(map: regmap, reg: BD718XX_REG_REGLOCK, |
1714 | mask: (REGLOCK_PWRSEQ | REGLOCK_VREG), val: 0); |
1715 | if (err) |
1716 | return dev_err_probe(dev: &pdev->dev, err, fmt: "Failed to unlock PMIC\n" ); |
1717 | |
1718 | dev_dbg(&pdev->dev, "Unlocked lock register 0x%x\n" , |
1719 | BD718XX_REG_REGLOCK); |
1720 | |
1721 | use_snvs = of_property_read_bool(np: pdev->dev.parent->of_node, |
1722 | propname: "rohm,reset-snvs-powered" ); |
1723 | |
1724 | /* |
1725 | * Change the next stage from poweroff to be READY instead of SNVS |
1726 | * for all reset types because OTP loading at READY will clear SEL |
1727 | * bit allowing HW defaults for power rails to be used |
1728 | */ |
1729 | if (!use_snvs) { |
1730 | err = regmap_update_bits(map: regmap, reg: BD718XX_REG_TRANS_COND1, |
1731 | BD718XX_ON_REQ_POWEROFF_MASK | |
1732 | BD718XX_SWRESET_POWEROFF_MASK | |
1733 | BD718XX_WDOG_POWEROFF_MASK | |
1734 | BD718XX_KEY_L_POWEROFF_MASK, |
1735 | BD718XX_POWOFF_TO_RDY); |
1736 | if (err) |
1737 | return dev_err_probe(dev: &pdev->dev, err, |
1738 | fmt: "Failed to change reset target\n" ); |
1739 | |
1740 | dev_dbg(&pdev->dev, "Changed all resets from SVNS to READY\n" ); |
1741 | } |
1742 | |
1743 | config.dev = pdev->dev.parent; |
1744 | config.regmap = regmap; |
1745 | /* |
1746 | * There are cases when we want to leave the enable-control for |
1747 | * the HW state machine and use this driver only for voltage control. |
1748 | * One special case is when we use PMIC_STBY_REQ line from SoC to PMIC |
1749 | * in order to set the system to SUSPEND state. |
1750 | * |
1751 | * If regulator is taken under SW control the regulator state will not |
1752 | * be affected by PMIC state machine - Eg. regulator is likely to stay |
1753 | * on even in SUSPEND |
1754 | */ |
1755 | err = get_special_regulators(dev: pdev->dev.parent, reg_data, num_reg_data, |
1756 | info: &omit_enable); |
1757 | if (err) |
1758 | return err; |
1759 | |
1760 | for (i = 0; i < num_reg_data; i++) { |
1761 | |
1762 | struct regulator_desc *desc; |
1763 | struct regulator_dev *rdev; |
1764 | struct bd718xx_regulator_data *r; |
1765 | int no_enable_control = omit_enable & (1 << i); |
1766 | |
1767 | r = ®_data[i]; |
1768 | desc = &r->desc; |
1769 | |
1770 | if (no_enable_control) |
1771 | desc->ops = hwops[i]; |
1772 | else |
1773 | desc->ops = swops[i]; |
1774 | |
1775 | rdev = devm_regulator_register(dev: &pdev->dev, regulator_desc: desc, config: &config); |
1776 | if (IS_ERR(ptr: rdev)) |
1777 | return dev_err_probe(dev: &pdev->dev, err: PTR_ERR(ptr: rdev), |
1778 | fmt: "failed to register %s regulator\n" , |
1779 | desc->name); |
1780 | |
1781 | /* |
1782 | * Regulator register gets the regulator constraints and |
1783 | * applies them (set_machine_constraints). This should have |
1784 | * turned the control register(s) to correct values and we |
1785 | * can now switch the control from PMIC state machine to the |
1786 | * register interface |
1787 | * |
1788 | * At poweroff transition PMIC HW disables EN bit for |
1789 | * regulators but leaves SEL bit untouched. So if state |
1790 | * transition from POWEROFF is done to SNVS - then all power |
1791 | * rails controlled by SW (having SEL bit set) stay disabled |
1792 | * as EN is cleared. This will result boot failure if any |
1793 | * crucial systems are powered by these rails. We don't |
1794 | * enable SW control for crucial regulators if snvs state is |
1795 | * used |
1796 | */ |
1797 | if (!no_enable_control && (!use_snvs || |
1798 | !rdev->constraints->always_on || |
1799 | !rdev->constraints->boot_on)) { |
1800 | err = regmap_update_bits(map: regmap, reg: r->init.reg, |
1801 | mask: r->init.mask, val: r->init.val); |
1802 | if (err) |
1803 | return dev_err_probe(dev: &pdev->dev, err, |
1804 | fmt: "Failed to take control for (%s)\n" , |
1805 | desc->name); |
1806 | } |
1807 | for (j = 0; j < r->additional_init_amnt; j++) { |
1808 | err = regmap_update_bits(map: regmap, |
1809 | reg: r->additional_inits[j].reg, |
1810 | mask: r->additional_inits[j].mask, |
1811 | val: r->additional_inits[j].val); |
1812 | if (err) |
1813 | return dev_err_probe(dev: &pdev->dev, err, |
1814 | fmt: "Buck (%s) initialization failed\n" , |
1815 | desc->name); |
1816 | } |
1817 | } |
1818 | |
1819 | return err; |
1820 | } |
1821 | |
1822 | static const struct platform_device_id bd718x7_pmic_id[] = { |
1823 | { "bd71837-pmic" , ROHM_CHIP_TYPE_BD71837 }, |
1824 | { "bd71847-pmic" , ROHM_CHIP_TYPE_BD71847 }, |
1825 | { }, |
1826 | }; |
1827 | MODULE_DEVICE_TABLE(platform, bd718x7_pmic_id); |
1828 | |
1829 | static struct platform_driver bd718xx_regulator = { |
1830 | .driver = { |
1831 | .name = "bd718xx-pmic" , |
1832 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
1833 | }, |
1834 | .probe = bd718xx_probe, |
1835 | .id_table = bd718x7_pmic_id, |
1836 | }; |
1837 | |
1838 | module_platform_driver(bd718xx_regulator); |
1839 | |
1840 | MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>" ); |
1841 | MODULE_DESCRIPTION("BD71837/BD71847 voltage regulator driver" ); |
1842 | MODULE_LICENSE("GPL" ); |
1843 | MODULE_ALIAS("platform:bd718xx-pmic" ); |
1844 | |