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ba08799e MV |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | // Copyright (C) 2018 ROHM Semiconductors | |
dd2be639 | 3 | // bd71837-regulator.c ROHM BD71837MWV/BD71847MWV regulator driver |
ba08799e | 4 | |
c9dc4cfa | 5 | #include <linux/delay.h> |
ba08799e MV |
6 | #include <linux/err.h> |
7 | #include <linux/interrupt.h> | |
c9dc4cfa | 8 | #include <linux/kernel.h> |
410e8b4f | 9 | #include <linux/mfd/rohm-bd718x7.h> |
c9dc4cfa | 10 | #include <linux/module.h> |
9cce7244 | 11 | #include <linux/of.h> |
ba08799e MV |
12 | #include <linux/platform_device.h> |
13 | #include <linux/regulator/driver.h> | |
14 | #include <linux/regulator/machine.h> | |
ba08799e | 15 | #include <linux/regulator/of_regulator.h> |
c9dc4cfa | 16 | #include <linux/slab.h> |
ba08799e | 17 | |
3b66e4a8 GG |
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 | ||
1d848d68 MV |
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, \ | |
fedbfea1 MV |
58 | _get_voltage_sel, _set_voltage_time_sel, _set_ramp_delay, \ |
59 | _set_uvp, _set_ovp) \ | |
1d848d68 MV |
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), \ | |
fedbfea1 MV |
70 | .set_under_voltage_protection = (_set_uvp), \ |
71 | .set_over_voltage_protection = (_set_ovp), \ | |
1d848d68 MV |
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), \ | |
fedbfea1 MV |
82 | .set_under_voltage_protection = (_set_uvp), \ |
83 | .set_over_voltage_protection = (_set_ovp), \ | |
1d848d68 MV |
84 | } \ |
85 | ||
ba08799e MV |
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 | */ | |
18f3c625 | 94 | static const unsigned int bd718xx_ramp_delay[] = { 10000, 5000, 2500, 1250 }; |
ba08799e | 95 | |
1d848d68 MV |
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(rdev->regmap, rdev->desc->enable_reg, &val); | |
123 | if (ret) | |
124 | return ret; | |
125 | ||
126 | return !!(BD718XX_BUCK_RUN_ON & val); | |
127 | } | |
ba08799e | 128 | |
9bcbabaf MV |
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(1); | |
fedbfea1 MV |
141 | |
142 | ret = regmap_clear_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2, | |
143 | *mask); | |
9bcbabaf MV |
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; | |
1d848d68 | 157 | if (rdev->desc->ops->is_enabled(rdev)) { |
9bcbabaf MV |
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) { | |
fedbfea1 MV |
187 | int tmp; |
188 | int prot_bit; | |
9bcbabaf MV |
189 | int ldo_offset = rdev->desc->id - BD718XX_LDO1; |
190 | ||
fedbfea1 MV |
191 | prot_bit = BD718XX_LDO1_VRMON80 << ldo_offset; |
192 | ret = regmap_read(rdev->regmap, BD718XX_REG_MVRFLTMASK2, | |
193 | &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(rdev->regmap, | |
203 | BD718XX_REG_MVRFLTMASK2, | |
204 | prot_bit); | |
205 | /* ...and we also want to re-enable it */ | |
206 | *mask = prot_bit; | |
207 | } | |
9bcbabaf MV |
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); | |
226 | if (ret) | |
227 | return ret; | |
228 | ||
229 | ret = regulator_set_voltage_sel_regmap(rdev, sel); | |
230 | voltage_change_done(rdev, sel, &mask); | |
231 | ||
232 | return ret; | |
233 | } | |
234 | ||
a4bfc2c2 MV |
235 | static int bd718xx_set_voltage_sel_pickable_restricted( |
236 | struct regulator_dev *rdev, unsigned int sel) | |
9bcbabaf MV |
237 | { |
238 | int ret; | |
239 | int mask; | |
240 | ||
241 | ret = voltage_change_prepare(rdev, sel, &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); | |
247 | ||
248 | return ret; | |
249 | } | |
250 | ||
251 | static int bd71837_set_voltage_sel_pickable_restricted( | |
252 | struct regulator_dev *rdev, unsigned int sel) | |
a4bfc2c2 | 253 | { |
1d848d68 | 254 | if (rdev->desc->ops->is_enabled(rdev)) |
a4bfc2c2 MV |
255 | return -EBUSY; |
256 | ||
257 | return regulator_set_voltage_sel_pickable_regmap(rdev, sel); | |
258 | } | |
259 | ||
ba08799e | 260 | /* |
494edd26 MV |
261 | * BD71837 BUCK1/2/3/4 |
262 | * BD71847 BUCK1/2 | |
ba08799e MV |
263 | * 0.70 to 1.30V (10mV step) |
264 | */ | |
60ab7f41 | 265 | static const struct linear_range bd718xx_dvs_buck_volts[] = { |
ba08799e MV |
266 | REGULATOR_LINEAR_RANGE(700000, 0x00, 0x3C, 10000), |
267 | REGULATOR_LINEAR_RANGE(1300000, 0x3D, 0x3F, 0), | |
268 | }; | |
269 | ||
270 | /* | |
494edd26 | 271 | * BD71837 BUCK5 |
a4bfc2c2 MV |
272 | * 0.7V to 1.35V (range 0) |
273 | * and | |
274 | * 0.675 to 1.325 (range 1) | |
275 | */ | |
60ab7f41 | 276 | static const struct linear_range bd71837_buck5_volts[] = { |
a4bfc2c2 MV |
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, 0x80, 0x80, 0x80 | |
293 | }; | |
294 | ||
295 | /* | |
494edd26 | 296 | * BD71847 BUCK3 |
ba08799e | 297 | */ |
60ab7f41 | 298 | static const struct linear_range bd71847_buck3_volts[] = { |
a4bfc2c2 | 299 | /* Ranges when VOLT_SEL bits are 00 */ |
ba08799e MV |
300 | REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000), |
301 | REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000), | |
302 | REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000), | |
a4bfc2c2 MV |
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, 0x40, 0x80, 0x80, 0x80 | |
ba08799e MV |
313 | }; |
314 | ||
60ab7f41 | 315 | static const struct linear_range bd71847_buck4_volts[] = { |
494edd26 | 316 | REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), |
a4bfc2c2 | 317 | REGULATOR_LINEAR_RANGE(2600000, 0x00, 0x03, 100000), |
494edd26 MV |
318 | }; |
319 | ||
a4bfc2c2 MV |
320 | static const unsigned int bd71847_buck4_volt_range_sel[] = { 0x0, 0x40 }; |
321 | ||
ba08799e MV |
322 | /* |
323 | * BUCK6 | |
324 | * 3.0V to 3.3V (step 100mV) | |
325 | */ | |
60ab7f41 | 326 | static const struct linear_range bd71837_buck6_volts[] = { |
ba08799e MV |
327 | REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), |
328 | }; | |
329 | ||
330 | /* | |
494edd26 MV |
331 | * BD71837 BUCK7 |
332 | * BD71847 BUCK5 | |
ba08799e MV |
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 | */ | |
494edd26 | 342 | static const unsigned int bd718xx_3rd_nodvs_buck_volts[] = { |
ba08799e MV |
343 | 1605000, 1695000, 1755000, 1800000, 1845000, 1905000, 1950000, 1995000 |
344 | }; | |
345 | ||
346 | /* | |
347 | * BUCK8 | |
348 | * 0.8V to 1.40V (step 10mV) | |
349 | */ | |
60ab7f41 | 350 | static const struct linear_range bd718xx_4th_nodvs_buck_volts[] = { |
ba08799e | 351 | REGULATOR_LINEAR_RANGE(800000, 0x00, 0x3C, 10000), |
ba08799e MV |
352 | }; |
353 | ||
354 | /* | |
355 | * LDO1 | |
356 | * 3.0 to 3.3V (100mV step) | |
357 | */ | |
60ab7f41 | 358 | static const struct linear_range bd718xx_ldo1_volts[] = { |
ba08799e | 359 | REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), |
a4bfc2c2 | 360 | REGULATOR_LINEAR_RANGE(1600000, 0x00, 0x03, 100000), |
ba08799e MV |
361 | }; |
362 | ||
a4bfc2c2 MV |
363 | static const unsigned int bd718xx_ldo1_volt_range_sel[] = { 0x0, 0x20 }; |
364 | ||
ba08799e MV |
365 | /* |
366 | * LDO2 | |
367 | * 0.8 or 0.9V | |
368 | */ | |
adb78a8e | 369 | static const unsigned int ldo_2_volts[] = { |
ba08799e MV |
370 | 900000, 800000 |
371 | }; | |
372 | ||
373 | /* | |
374 | * LDO3 | |
375 | * 1.8 to 3.3V (100mV step) | |
376 | */ | |
60ab7f41 | 377 | static const struct linear_range bd718xx_ldo3_volts[] = { |
ba08799e MV |
378 | REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), |
379 | }; | |
380 | ||
381 | /* | |
382 | * LDO4 | |
383 | * 0.9 to 1.8V (100mV step) | |
384 | */ | |
60ab7f41 | 385 | static const struct linear_range bd718xx_ldo4_volts[] = { |
ba08799e | 386 | REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000), |
ba08799e MV |
387 | }; |
388 | ||
389 | /* | |
494edd26 | 390 | * LDO5 for BD71837 |
ba08799e MV |
391 | * 1.8 to 3.3V (100mV step) |
392 | */ | |
60ab7f41 | 393 | static const struct linear_range bd71837_ldo5_volts[] = { |
ba08799e MV |
394 | REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), |
395 | }; | |
396 | ||
a4bfc2c2 MV |
397 | /* |
398 | * LDO5 for BD71837 | |
399 | * 1.8 to 3.3V (100mV step) | |
400 | */ | |
60ab7f41 | 401 | static const struct linear_range bd71847_ldo5_volts[] = { |
a4bfc2c2 MV |
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, 0x20 }; | |
407 | ||
ba08799e MV |
408 | /* |
409 | * LDO6 | |
410 | * 0.9 to 1.8V (100mV step) | |
411 | */ | |
60ab7f41 | 412 | static const struct linear_range bd718xx_ldo6_volts[] = { |
ba08799e | 413 | REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000), |
ba08799e MV |
414 | }; |
415 | ||
416 | /* | |
417 | * LDO7 | |
418 | * 1.8 to 3.3V (100mV step) | |
419 | */ | |
60ab7f41 | 420 | static const struct linear_range bd71837_ldo7_volts[] = { |
ba08799e MV |
421 | REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), |
422 | }; | |
423 | ||
494edd26 MV |
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; | |
21b72156 | 431 | const struct rohm_dvs_config dvs; |
494edd26 MV |
432 | const struct reg_init init; |
433 | const struct reg_init *additional_inits; | |
434 | int additional_init_amnt; | |
435 | }; | |
436 | ||
fedbfea1 MV |
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(rdev->regmap, BD718XX_REG_MVRFLTMASK2, | |
474 | prot_bit); | |
475 | ||
476 | return regmap_set_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2, | |
477 | 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(rdev->desc->id, ®, &bit); | |
532 | if (ret) | |
533 | return ret; | |
534 | ||
535 | if (enable) | |
536 | return regmap_clear_bits(rdev->regmap, reg, bit); | |
537 | ||
538 | return regmap_set_bits(rdev->regmap, reg, 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(rdev->desc->id, ®, &bit); | |
553 | if (ret) | |
554 | return ret; | |
555 | ||
556 | if (enable) | |
557 | return regmap_clear_bits(rdev->regmap, reg, bit); | |
558 | ||
559 | return regmap_set_bits(rdev->regmap, reg, 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, | |
e7543e19 | 624 | NULL, rohm_regulator_set_voltage_sel_restricted, |
fedbfea1 MV |
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, | |
e7543e19 | 629 | NULL, rohm_regulator_set_voltage_sel_restricted, |
fedbfea1 MV |
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, | |
e7543e19 | 634 | NULL, rohm_regulator_set_voltage_sel_restricted, |
fedbfea1 MV |
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, | |
e7543e19 | 639 | regulator_map_voltage_ascend, rohm_regulator_set_voltage_sel_restricted, |
fedbfea1 MV |
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 | ||
494edd26 MV |
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 | ||
21b72156 | 695 | static int buck_set_hw_dvs_levels(struct device_node *np, |
049369d4 MV |
696 | const struct regulator_desc *desc, |
697 | struct regulator_config *cfg) | |
698 | { | |
21b72156 | 699 | struct bd718xx_regulator_data *data; |
049369d4 | 700 | |
21b72156 | 701 | data = container_of(desc, struct bd718xx_regulator_data, desc); |
049369d4 | 702 | |
21b72156 | 703 | return rohm_regulator_set_dvs_levels(&data->dvs, np, desc, cfg->regmap); |
049369d4 MV |
704 | } |
705 | ||
02f8eaab | 706 | static const struct regulator_ops *bd71847_swcontrol_ops[] = { |
1d848d68 MV |
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 | ||
02f8eaab | 715 | static const struct regulator_ops *bd71847_hwcontrol_ops[] = { |
1d848d68 MV |
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[] = { | |
494edd26 MV |
731 | { |
732 | .desc = { | |
733 | .name = "buck1", | |
734 | .of_match = of_match_ptr("BUCK1"), | |
735 | .regulators_node = of_match_ptr("regulators"), | |
736 | .id = BD718XX_BUCK1, | |
494edd26 MV |
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, | |
3b66e4a8 | 746 | .enable_time = BD71847_BUCK1_STARTUP_TIME, |
494edd26 | 747 | .owner = THIS_MODULE, |
18f3c625 MV |
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, | |
21b72156 MV |
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, | |
494edd26 MV |
763 | }, |
764 | .init = { | |
765 | .reg = BD718XX_REG_BUCK1_CTRL, | |
766 | .mask = BD718XX_BUCK_SEL, | |
767 | .val = BD718XX_BUCK_SEL, | |
768 | }, | |
769 | }, | |
ba08799e | 770 | { |
494edd26 MV |
771 | .desc = { |
772 | .name = "buck2", | |
773 | .of_match = of_match_ptr("BUCK2"), | |
774 | .regulators_node = of_match_ptr("regulators"), | |
775 | .id = BD718XX_BUCK2, | |
494edd26 MV |
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, | |
3b66e4a8 | 784 | .enable_time = BD71847_BUCK2_STARTUP_TIME, |
18f3c625 MV |
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, | |
494edd26 | 789 | .owner = THIS_MODULE, |
21b72156 MV |
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, | |
494edd26 MV |
798 | }, |
799 | .init = { | |
800 | .reg = BD718XX_REG_BUCK2_CTRL, | |
801 | .mask = BD718XX_BUCK_SEL, | |
802 | .val = BD718XX_BUCK_SEL, | |
803 | }, | |
ba08799e MV |
804 | }, |
805 | { | |
494edd26 MV |
806 | .desc = { |
807 | .name = "buck3", | |
808 | .of_match = of_match_ptr("BUCK3"), | |
809 | .regulators_node = of_match_ptr("regulators"), | |
810 | .id = BD718XX_BUCK3, | |
494edd26 | 811 | .type = REGULATOR_VOLTAGE, |
a4bfc2c2 MV |
812 | .n_voltages = BD71847_BUCK3_VOLTAGE_NUM, |
813 | .linear_ranges = bd71847_buck3_volts, | |
494edd26 | 814 | .n_linear_ranges = |
a4bfc2c2 | 815 | ARRAY_SIZE(bd71847_buck3_volts), |
494edd26 MV |
816 | .vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, |
817 | .vsel_mask = BD718XX_1ST_NODVS_BUCK_MASK, | |
a4bfc2c2 MV |
818 | .vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, |
819 | .vsel_range_mask = BD71847_BUCK3_RANGE_MASK, | |
820 | .linear_range_selectors = bd71847_buck3_volt_range_sel, | |
494edd26 MV |
821 | .enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, |
822 | .enable_mask = BD718XX_BUCK_EN, | |
3b66e4a8 | 823 | .enable_time = BD71847_BUCK3_STARTUP_TIME, |
494edd26 MV |
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 | }, | |
ba08799e MV |
831 | }, |
832 | { | |
494edd26 MV |
833 | .desc = { |
834 | .name = "buck4", | |
835 | .of_match = of_match_ptr("BUCK4"), | |
836 | .regulators_node = of_match_ptr("regulators"), | |
837 | .id = BD718XX_BUCK4, | |
494edd26 MV |
838 | .type = REGULATOR_VOLTAGE, |
839 | .n_voltages = BD71847_BUCK4_VOLTAGE_NUM, | |
a4bfc2c2 | 840 | .linear_ranges = bd71847_buck4_volts, |
494edd26 | 841 | .n_linear_ranges = |
a4bfc2c2 | 842 | ARRAY_SIZE(bd71847_buck4_volts), |
494edd26 MV |
843 | .enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, |
844 | .vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, | |
845 | .vsel_mask = BD71847_BUCK4_MASK, | |
a4bfc2c2 MV |
846 | .vsel_range_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, |
847 | .vsel_range_mask = BD71847_BUCK4_RANGE_MASK, | |
848 | .linear_range_selectors = bd71847_buck4_volt_range_sel, | |
494edd26 | 849 | .enable_mask = BD718XX_BUCK_EN, |
3b66e4a8 | 850 | .enable_time = BD71847_BUCK4_STARTUP_TIME, |
494edd26 MV |
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 | }, | |
ba08799e MV |
858 | }, |
859 | { | |
494edd26 MV |
860 | .desc = { |
861 | .name = "buck5", | |
862 | .of_match = of_match_ptr("BUCK5"), | |
dd2be639 | 863 | .regulators_node = of_match_ptr("regulators"), |
494edd26 | 864 | .id = BD718XX_BUCK5, |
494edd26 MV |
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, | |
3b66e4a8 | 872 | .enable_time = BD71847_BUCK5_STARTUP_TIME, |
494edd26 MV |
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 | }, | |
ba08799e MV |
880 | }, |
881 | { | |
494edd26 MV |
882 | .desc = { |
883 | .name = "buck6", | |
884 | .of_match = of_match_ptr("BUCK6"), | |
885 | .regulators_node = of_match_ptr("regulators"), | |
886 | .id = BD718XX_BUCK6, | |
494edd26 | 887 | .type = REGULATOR_VOLTAGE, |
dd2be639 | 888 | .n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM, |
494edd26 MV |
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, | |
3b66e4a8 | 896 | .enable_time = BD71847_BUCK6_STARTUP_TIME, |
494edd26 MV |
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 | }, | |
ba08799e MV |
904 | }, |
905 | { | |
494edd26 MV |
906 | .desc = { |
907 | .name = "ldo1", | |
908 | .of_match = of_match_ptr("LDO1"), | |
909 | .regulators_node = of_match_ptr("regulators"), | |
910 | .id = BD718XX_LDO1, | |
494edd26 MV |
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, | |
a4bfc2c2 MV |
917 | .vsel_range_reg = BD718XX_REG_LDO1_VOLT, |
918 | .vsel_range_mask = BD718XX_LDO1_RANGE_MASK, | |
919 | .linear_range_selectors = bd718xx_ldo1_volt_range_sel, | |
494edd26 MV |
920 | .enable_reg = BD718XX_REG_LDO1_VOLT, |
921 | .enable_mask = BD718XX_LDO_EN, | |
3b66e4a8 | 922 | .enable_time = BD71847_LDO1_STARTUP_TIME, |
494edd26 MV |
923 | .owner = THIS_MODULE, |
924 | }, | |
925 | .init = { | |
926 | .reg = BD718XX_REG_LDO1_VOLT, | |
927 | .mask = BD718XX_LDO_SEL, | |
928 | .val = BD718XX_LDO_SEL, | |
929 | }, | |
ba08799e MV |
930 | }, |
931 | { | |
494edd26 MV |
932 | .desc = { |
933 | .name = "ldo2", | |
934 | .of_match = of_match_ptr("LDO2"), | |
935 | .regulators_node = of_match_ptr("regulators"), | |
936 | .id = BD718XX_LDO2, | |
494edd26 MV |
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, | |
3b66e4a8 | 944 | .enable_time = BD71847_LDO2_STARTUP_TIME, |
494edd26 MV |
945 | .owner = THIS_MODULE, |
946 | }, | |
947 | .init = { | |
948 | .reg = BD718XX_REG_LDO2_VOLT, | |
949 | .mask = BD718XX_LDO_SEL, | |
950 | .val = BD718XX_LDO_SEL, | |
951 | }, | |
ba08799e MV |
952 | }, |
953 | { | |
494edd26 MV |
954 | .desc = { |
955 | .name = "ldo3", | |
956 | .of_match = of_match_ptr("LDO3"), | |
957 | .regulators_node = of_match_ptr("regulators"), | |
958 | .id = BD718XX_LDO3, | |
494edd26 MV |
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, | |
3b66e4a8 | 967 | .enable_time = BD71847_LDO3_STARTUP_TIME, |
494edd26 MV |
968 | .owner = THIS_MODULE, |
969 | }, | |
970 | .init = { | |
971 | .reg = BD718XX_REG_LDO3_VOLT, | |
972 | .mask = BD718XX_LDO_SEL, | |
973 | .val = BD718XX_LDO_SEL, | |
974 | }, | |
ba08799e MV |
975 | }, |
976 | { | |
494edd26 MV |
977 | .desc = { |
978 | .name = "ldo4", | |
979 | .of_match = of_match_ptr("LDO4"), | |
980 | .regulators_node = of_match_ptr("regulators"), | |
981 | .id = BD718XX_LDO4, | |
494edd26 MV |
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, | |
3b66e4a8 | 990 | .enable_time = BD71847_LDO4_STARTUP_TIME, |
494edd26 MV |
991 | .owner = THIS_MODULE, |
992 | }, | |
993 | .init = { | |
994 | .reg = BD718XX_REG_LDO4_VOLT, | |
995 | .mask = BD718XX_LDO_SEL, | |
996 | .val = BD718XX_LDO_SEL, | |
997 | }, | |
ba08799e MV |
998 | }, |
999 | { | |
494edd26 MV |
1000 | .desc = { |
1001 | .name = "ldo5", | |
1002 | .of_match = of_match_ptr("LDO5"), | |
1003 | .regulators_node = of_match_ptr("regulators"), | |
1004 | .id = BD718XX_LDO5, | |
494edd26 | 1005 | .type = REGULATOR_VOLTAGE, |
a4bfc2c2 MV |
1006 | .n_voltages = BD71847_LDO5_VOLTAGE_NUM, |
1007 | .linear_ranges = bd71847_ldo5_volts, | |
1008 | .n_linear_ranges = ARRAY_SIZE(bd71847_ldo5_volts), | |
494edd26 MV |
1009 | .vsel_reg = BD718XX_REG_LDO5_VOLT, |
1010 | .vsel_mask = BD71847_LDO5_MASK, | |
a4bfc2c2 MV |
1011 | .vsel_range_reg = BD718XX_REG_LDO5_VOLT, |
1012 | .vsel_range_mask = BD71847_LDO5_RANGE_MASK, | |
1013 | .linear_range_selectors = bd71847_ldo5_volt_range_sel, | |
494edd26 MV |
1014 | .enable_reg = BD718XX_REG_LDO5_VOLT, |
1015 | .enable_mask = BD718XX_LDO_EN, | |
3b66e4a8 | 1016 | .enable_time = BD71847_LDO5_STARTUP_TIME, |
494edd26 MV |
1017 | .owner = THIS_MODULE, |
1018 | }, | |
1019 | .init = { | |
1020 | .reg = BD718XX_REG_LDO5_VOLT, | |
1021 | .mask = BD718XX_LDO_SEL, | |
1022 | .val = BD718XX_LDO_SEL, | |
1023 | }, | |
ba08799e MV |
1024 | }, |
1025 | { | |
494edd26 MV |
1026 | .desc = { |
1027 | .name = "ldo6", | |
1028 | .of_match = of_match_ptr("LDO6"), | |
1029 | .regulators_node = of_match_ptr("regulators"), | |
1030 | .id = BD718XX_LDO6, | |
494edd26 MV |
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, | |
3b66e4a8 | 1041 | .enable_time = BD71847_LDO6_STARTUP_TIME, |
494edd26 MV |
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 | ||
02f8eaab | 1052 | static const struct regulator_ops *bd71837_swcontrol_ops[] = { |
1d848d68 MV |
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 | ||
02f8eaab | 1063 | static const struct regulator_ops *bd71837_hwcontrol_ops[] = { |
1d848d68 MV |
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[] = { | |
494edd26 MV |
1081 | { |
1082 | .desc = { | |
1083 | .name = "buck1", | |
1084 | .of_match = of_match_ptr("BUCK1"), | |
1085 | .regulators_node = of_match_ptr("regulators"), | |
1086 | .id = BD718XX_BUCK1, | |
494edd26 MV |
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, | |
3b66e4a8 | 1095 | .enable_time = BD71837_BUCK1_STARTUP_TIME, |
18f3c625 MV |
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, | |
494edd26 | 1100 | .owner = THIS_MODULE, |
21b72156 MV |
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, | |
494edd26 MV |
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, | |
494edd26 MV |
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, | |
3b66e4a8 | 1133 | .enable_time = BD71837_BUCK2_STARTUP_TIME, |
18f3c625 MV |
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, | |
494edd26 | 1138 | .owner = THIS_MODULE, |
21b72156 MV |
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, | |
494edd26 MV |
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, | |
494edd26 MV |
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, | |
3b66e4a8 | 1168 | .enable_time = BD71837_BUCK3_STARTUP_TIME, |
18f3c625 MV |
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, | |
494edd26 | 1173 | .owner = THIS_MODULE, |
21b72156 MV |
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, | |
494edd26 MV |
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, | |
494edd26 MV |
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, | |
3b66e4a8 | 1201 | .enable_time = BD71837_BUCK4_STARTUP_TIME, |
18f3c625 MV |
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, | |
494edd26 | 1206 | .owner = THIS_MODULE, |
21b72156 MV |
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, | |
494edd26 MV |
1213 | }, |
1214 | .init = { | |
1215 | .reg = BD71837_REG_BUCK4_CTRL, | |
1216 | .mask = BD718XX_BUCK_SEL, | |
1217 | .val = BD718XX_BUCK_SEL, | |
1218 | }, | |
ba08799e MV |
1219 | }, |
1220 | { | |
494edd26 MV |
1221 | .desc = { |
1222 | .name = "buck5", | |
1223 | .of_match = of_match_ptr("BUCK5"), | |
1224 | .regulators_node = of_match_ptr("regulators"), | |
1225 | .id = BD718XX_BUCK5, | |
494edd26 | 1226 | .type = REGULATOR_VOLTAGE, |
a4bfc2c2 MV |
1227 | .n_voltages = BD71837_BUCK5_VOLTAGE_NUM, |
1228 | .linear_ranges = bd71837_buck5_volts, | |
494edd26 | 1229 | .n_linear_ranges = |
a4bfc2c2 | 1230 | ARRAY_SIZE(bd71837_buck5_volts), |
494edd26 | 1231 | .vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, |
a4bfc2c2 MV |
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 = bd71837_buck5_volt_range_sel, | |
494edd26 MV |
1236 | .enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, |
1237 | .enable_mask = BD718XX_BUCK_EN, | |
3b66e4a8 | 1238 | .enable_time = BD71837_BUCK5_STARTUP_TIME, |
494edd26 MV |
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 | }, | |
ba08799e MV |
1246 | }, |
1247 | { | |
494edd26 MV |
1248 | .desc = { |
1249 | .name = "buck6", | |
1250 | .of_match = of_match_ptr("BUCK6"), | |
1251 | .regulators_node = of_match_ptr("regulators"), | |
1252 | .id = BD718XX_BUCK6, | |
494edd26 MV |
1253 | .type = REGULATOR_VOLTAGE, |
1254 | .n_voltages = BD71837_BUCK6_VOLTAGE_NUM, | |
a4bfc2c2 | 1255 | .linear_ranges = bd71837_buck6_volts, |
494edd26 | 1256 | .n_linear_ranges = |
a4bfc2c2 | 1257 | ARRAY_SIZE(bd71837_buck6_volts), |
494edd26 MV |
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, | |
3b66e4a8 | 1262 | .enable_time = BD71837_BUCK6_STARTUP_TIME, |
494edd26 MV |
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 | }, | |
ba08799e MV |
1270 | }, |
1271 | { | |
494edd26 MV |
1272 | .desc = { |
1273 | .name = "buck7", | |
1274 | .of_match = of_match_ptr("BUCK7"), | |
1275 | .regulators_node = of_match_ptr("regulators"), | |
1276 | .id = BD718XX_BUCK7, | |
494edd26 MV |
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, | |
3b66e4a8 | 1284 | .enable_time = BD71837_BUCK7_STARTUP_TIME, |
494edd26 MV |
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 | }, | |
ba08799e MV |
1292 | }, |
1293 | { | |
494edd26 MV |
1294 | .desc = { |
1295 | .name = "buck8", | |
1296 | .of_match = of_match_ptr("BUCK8"), | |
1297 | .regulators_node = of_match_ptr("regulators"), | |
1298 | .id = BD718XX_BUCK8, | |
494edd26 | 1299 | .type = REGULATOR_VOLTAGE, |
dd2be639 | 1300 | .n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM, |
494edd26 MV |
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, | |
3b66e4a8 | 1308 | .enable_time = BD71837_BUCK8_STARTUP_TIME, |
494edd26 MV |
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, | |
494edd26 MV |
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, | |
a4bfc2c2 MV |
1329 | .vsel_range_reg = BD718XX_REG_LDO1_VOLT, |
1330 | .vsel_range_mask = BD718XX_LDO1_RANGE_MASK, | |
1331 | .linear_range_selectors = bd718xx_ldo1_volt_range_sel, | |
494edd26 MV |
1332 | .enable_reg = BD718XX_REG_LDO1_VOLT, |
1333 | .enable_mask = BD718XX_LDO_EN, | |
3b66e4a8 | 1334 | .enable_time = BD71837_LDO1_STARTUP_TIME, |
494edd26 MV |
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, | |
494edd26 MV |
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, | |
3b66e4a8 | 1356 | .enable_time = BD71837_LDO2_STARTUP_TIME, |
494edd26 MV |
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, | |
494edd26 MV |
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, | |
3b66e4a8 | 1379 | .enable_time = BD71837_LDO3_STARTUP_TIME, |
494edd26 MV |
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, | |
494edd26 MV |
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, | |
3b66e4a8 | 1402 | .enable_time = BD71837_LDO4_STARTUP_TIME, |
494edd26 MV |
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, | |
494edd26 | 1417 | .type = REGULATOR_VOLTAGE, |
a4bfc2c2 MV |
1418 | .n_voltages = BD71837_LDO5_VOLTAGE_NUM, |
1419 | .linear_ranges = bd71837_ldo5_volts, | |
1420 | .n_linear_ranges = ARRAY_SIZE(bd71837_ldo5_volts), | |
494edd26 MV |
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, | |
3b66e4a8 | 1427 | .enable_time = BD71837_LDO5_STARTUP_TIME, |
494edd26 MV |
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, | |
494edd26 MV |
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, | |
3b66e4a8 | 1454 | .enable_time = BD71837_LDO6_STARTUP_TIME, |
494edd26 MV |
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, | |
494edd26 MV |
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, | |
3b66e4a8 | 1479 | .enable_time = BD71837_LDO7_STARTUP_TIME, |
494edd26 MV |
1480 | .owner = THIS_MODULE, |
1481 | }, | |
1482 | .init = { | |
1483 | .reg = BD71837_REG_LDO7_VOLT, | |
1484 | .mask = BD718XX_LDO_SEL, | |
1485 | .val = BD718XX_LDO_SEL, | |
1486 | }, | |
ba08799e MV |
1487 | }, |
1488 | }; | |
1489 | ||
1d848d68 MV |
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, 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 | ||
d2ad9811 MV |
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) | |
1d848d68 | 1554 | { |
d2ad9811 MV |
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, desc->of_match)) | |
1577 | continue; | |
1578 | ||
d2ad9811 MV |
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, "rohm,feedback-pull-up-r1-ohms", | |
1584 | &r1); | |
1585 | if (ret) | |
1586 | return ret; | |
1587 | ||
1588 | if (!r1) | |
1589 | return -EINVAL; | |
1590 | ||
1591 | ret = of_property_read_u32(np, "rohm,feedback-pull-up-r2-ohms", | |
1592 | &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, 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; | |
1d848d68 MV |
1638 | struct device_node *np; |
1639 | struct device_node *nproot = dev->of_node; | |
d2ad9811 | 1640 | int uv; |
1d848d68 MV |
1641 | |
1642 | *info = 0; | |
1643 | ||
1644 | nproot = of_get_child_by_name(nproot, "regulators"); | |
1645 | if (!nproot) { | |
1646 | dev_err(dev, "failed to find regulators node\n"); | |
1647 | return -ENODEV; | |
1648 | } | |
d2ad9811 MV |
1649 | for_each_child_of_node(nproot, np) { |
1650 | if (of_property_read_bool(np, "rohm,no-regulator-enable-control")) | |
1d848d68 MV |
1651 | mark_hw_controlled(dev, np, reg_data, num_reg_data, |
1652 | info); | |
d2ad9811 MV |
1653 | ret = of_property_read_u32(np, "rohm,fb-pull-up-microvolt", |
1654 | &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, uv); | |
1663 | if (ret) | |
1664 | goto err_out; | |
1665 | } | |
1d848d68 MV |
1666 | |
1667 | of_node_put(nproot); | |
1668 | return 0; | |
d2ad9811 MV |
1669 | |
1670 | err_out: | |
1671 | of_node_put(np); | |
1672 | of_node_put(nproot); | |
1673 | ||
1674 | return ret; | |
1d848d68 MV |
1675 | } |
1676 | ||
dd2be639 | 1677 | static int bd718xx_probe(struct platform_device *pdev) |
ba08799e | 1678 | { |
907dfdc9 | 1679 | struct regmap *regmap; |
ba08799e | 1680 | struct regulator_config config = { 0 }; |
1d848d68 | 1681 | int i, j, err, omit_enable; |
049369d4 | 1682 | bool use_snvs; |
1d848d68 | 1683 | struct bd718xx_regulator_data *reg_data; |
b389ceae | 1684 | unsigned int num_reg_data; |
1b1c26b2 | 1685 | enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data; |
1d848d68 | 1686 | const struct regulator_ops **swops, **hwops; |
ba08799e | 1687 | |
907dfdc9 MV |
1688 | regmap = dev_get_regmap(pdev->dev.parent, NULL); |
1689 | if (!regmap) { | |
ba08799e | 1690 | dev_err(&pdev->dev, "No MFD driver data\n"); |
907dfdc9 | 1691 | return -EINVAL; |
ba08799e | 1692 | } |
bcb047eb | 1693 | |
af32f3a4 | 1694 | switch (chip) { |
b389ceae AL |
1695 | case ROHM_CHIP_TYPE_BD71837: |
1696 | reg_data = bd71837_regulators; | |
1697 | num_reg_data = ARRAY_SIZE(bd71837_regulators); | |
1d848d68 MV |
1698 | swops = &bd71837_swcontrol_ops[0]; |
1699 | hwops = &bd71837_hwcontrol_ops[0]; | |
b389ceae AL |
1700 | break; |
1701 | case ROHM_CHIP_TYPE_BD71847: | |
1702 | reg_data = bd71847_regulators; | |
1703 | num_reg_data = ARRAY_SIZE(bd71847_regulators); | |
1d848d68 MV |
1704 | swops = &bd71847_swcontrol_ops[0]; |
1705 | hwops = &bd71847_hwcontrol_ops[0]; | |
b389ceae AL |
1706 | break; |
1707 | default: | |
494edd26 | 1708 | dev_err(&pdev->dev, "Unsupported chip type\n"); |
662a9bf8 | 1709 | return -EINVAL; |
494edd26 MV |
1710 | } |
1711 | ||
ba08799e | 1712 | /* Register LOCK release */ |
907dfdc9 | 1713 | err = regmap_update_bits(regmap, BD718XX_REG_REGLOCK, |
ba08799e | 1714 | (REGLOCK_PWRSEQ | REGLOCK_VREG), 0); |
662a9bf8 MV |
1715 | if (err) |
1716 | return dev_err_probe(&pdev->dev, err, "Failed to unlock PMIC\n"); | |
1717 | ||
1718 | dev_dbg(&pdev->dev, "Unlocked lock register 0x%x\n", | |
1719 | BD718XX_REG_REGLOCK); | |
823f18f8 | 1720 | |
049369d4 MV |
1721 | use_snvs = of_property_read_bool(pdev->dev.parent->of_node, |
1722 | "rohm,reset-snvs-powered"); | |
1723 | ||
1724 | /* | |
e770b18b MV |
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 | */ | |
049369d4 | 1729 | if (!use_snvs) { |
907dfdc9 | 1730 | err = regmap_update_bits(regmap, BD718XX_REG_TRANS_COND1, |
049369d4 MV |
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); | |
662a9bf8 MV |
1736 | if (err) |
1737 | return dev_err_probe(&pdev->dev, err, | |
1738 | "Failed to change reset target\n"); | |
1739 | ||
1740 | dev_dbg(&pdev->dev, "Changed all resets from SVNS to READY\n"); | |
e770b18b MV |
1741 | } |
1742 | ||
df9db254 | 1743 | config.dev = pdev->dev.parent; |
907dfdc9 | 1744 | config.regmap = regmap; |
1d848d68 MV |
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 | */ | |
d2ad9811 | 1755 | err = get_special_regulators(pdev->dev.parent, reg_data, num_reg_data, |
1d848d68 | 1756 | &omit_enable); |
d2ad9811 MV |
1757 | if (err) |
1758 | return err; | |
df9db254 | 1759 | |
b389ceae | 1760 | for (i = 0; i < num_reg_data; i++) { |
ba08799e | 1761 | |
1d848d68 | 1762 | struct regulator_desc *desc; |
ba08799e | 1763 | struct regulator_dev *rdev; |
1d848d68 MV |
1764 | struct bd718xx_regulator_data *r; |
1765 | int no_enable_control = omit_enable & (1 << i); | |
ba08799e | 1766 | |
b389ceae | 1767 | r = ®_data[i]; |
494edd26 | 1768 | desc = &r->desc; |
ba08799e | 1769 | |
1d848d68 MV |
1770 | if (no_enable_control) |
1771 | desc->ops = hwops[i]; | |
1772 | else | |
1773 | desc->ops = swops[i]; | |
ba08799e MV |
1774 | |
1775 | rdev = devm_regulator_register(&pdev->dev, desc, &config); | |
662a9bf8 MV |
1776 | if (IS_ERR(rdev)) |
1777 | return dev_err_probe(&pdev->dev, PTR_ERR(rdev), | |
1778 | "failed to register %s regulator\n", | |
1779 | desc->name); | |
049369d4 MV |
1780 | |
1781 | /* | |
1782 | * Regulator register gets the regulator constraints and | |
ba08799e MV |
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 | |
049369d4 MV |
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 | |
ba08799e | 1796 | */ |
1d848d68 MV |
1797 | if (!no_enable_control && (!use_snvs || |
1798 | !rdev->constraints->always_on || | |
1799 | !rdev->constraints->boot_on)) { | |
907dfdc9 | 1800 | err = regmap_update_bits(regmap, r->init.reg, |
049369d4 | 1801 | r->init.mask, r->init.val); |
662a9bf8 MV |
1802 | if (err) |
1803 | return dev_err_probe(&pdev->dev, err, | |
049369d4 MV |
1804 | "Failed to take control for (%s)\n", |
1805 | desc->name); | |
ba08799e | 1806 | } |
494edd26 | 1807 | for (j = 0; j < r->additional_init_amnt; j++) { |
907dfdc9 | 1808 | err = regmap_update_bits(regmap, |
494edd26 MV |
1809 | r->additional_inits[j].reg, |
1810 | r->additional_inits[j].mask, | |
1811 | r->additional_inits[j].val); | |
662a9bf8 MV |
1812 | if (err) |
1813 | return dev_err_probe(&pdev->dev, err, | |
494edd26 MV |
1814 | "Buck (%s) initialization failed\n", |
1815 | desc->name); | |
494edd26 | 1816 | } |
ba08799e MV |
1817 | } |
1818 | ||
ba08799e MV |
1819 | return err; |
1820 | } | |
1821 | ||
1b1c26b2 MV |
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 | ||
dd2be639 | 1829 | static struct platform_driver bd718xx_regulator = { |
ba08799e | 1830 | .driver = { |
494edd26 | 1831 | .name = "bd718xx-pmic", |
ba08799e | 1832 | }, |
dd2be639 | 1833 | .probe = bd718xx_probe, |
1b1c26b2 | 1834 | .id_table = bd718x7_pmic_id, |
ba08799e MV |
1835 | }; |
1836 | ||
dd2be639 | 1837 | module_platform_driver(bd718xx_regulator); |
ba08799e MV |
1838 | |
1839 | MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>"); | |
dd2be639 | 1840 | MODULE_DESCRIPTION("BD71837/BD71847 voltage regulator driver"); |
ba08799e | 1841 | MODULE_LICENSE("GPL"); |
95bddd8b | 1842 | MODULE_ALIAS("platform:bd718xx-pmic"); |