1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * tps65910.c -- TI tps65910 |
4 | * |
5 | * Copyright 2010 Texas Instruments Inc. |
6 | * |
7 | * Author: Graeme Gregory <gg@slimlogic.co.uk> |
8 | * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk> |
9 | */ |
10 | |
11 | #include <linux/kernel.h> |
12 | #include <linux/module.h> |
13 | #include <linux/init.h> |
14 | #include <linux/err.h> |
15 | #include <linux/of.h> |
16 | #include <linux/platform_device.h> |
17 | #include <linux/regulator/driver.h> |
18 | #include <linux/regulator/machine.h> |
19 | #include <linux/slab.h> |
20 | #include <linux/mfd/tps65910.h> |
21 | #include <linux/regulator/of_regulator.h> |
22 | |
23 | #define TPS65910_SUPPLY_STATE_ENABLED 0x1 |
24 | #define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 | \ |
25 | TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 | \ |
26 | TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 | \ |
27 | TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) |
28 | |
29 | /* supported VIO voltages in microvolts */ |
30 | static const unsigned int VIO_VSEL_table[] = { |
31 | 1500000, 1800000, 2500000, 3300000, |
32 | }; |
33 | |
34 | /* VSEL tables for TPS65910 specific LDOs and dcdc's */ |
35 | |
36 | /* supported VRTC voltages in microvolts */ |
37 | static const unsigned int VRTC_VSEL_table[] = { |
38 | 1800000, |
39 | }; |
40 | |
41 | /* supported VDD3 voltages in microvolts */ |
42 | static const unsigned int VDD3_VSEL_table[] = { |
43 | 5000000, |
44 | }; |
45 | |
46 | /* supported VDIG1 voltages in microvolts */ |
47 | static const unsigned int VDIG1_VSEL_table[] = { |
48 | 1200000, 1500000, 1800000, 2700000, |
49 | }; |
50 | |
51 | /* supported VDIG2 voltages in microvolts */ |
52 | static const unsigned int VDIG2_VSEL_table[] = { |
53 | 1000000, 1100000, 1200000, 1800000, |
54 | }; |
55 | |
56 | /* supported VPLL voltages in microvolts */ |
57 | static const unsigned int VPLL_VSEL_table[] = { |
58 | 1000000, 1100000, 1800000, 2500000, |
59 | }; |
60 | |
61 | /* supported VDAC voltages in microvolts */ |
62 | static const unsigned int VDAC_VSEL_table[] = { |
63 | 1800000, 2600000, 2800000, 2850000, |
64 | }; |
65 | |
66 | /* supported VAUX1 voltages in microvolts */ |
67 | static const unsigned int VAUX1_VSEL_table[] = { |
68 | 1800000, 2500000, 2800000, 2850000, |
69 | }; |
70 | |
71 | /* supported VAUX2 voltages in microvolts */ |
72 | static const unsigned int VAUX2_VSEL_table[] = { |
73 | 1800000, 2800000, 2900000, 3300000, |
74 | }; |
75 | |
76 | /* supported VAUX33 voltages in microvolts */ |
77 | static const unsigned int VAUX33_VSEL_table[] = { |
78 | 1800000, 2000000, 2800000, 3300000, |
79 | }; |
80 | |
81 | /* supported VMMC voltages in microvolts */ |
82 | static const unsigned int VMMC_VSEL_table[] = { |
83 | 1800000, 2800000, 3000000, 3300000, |
84 | }; |
85 | |
86 | /* supported BBCH voltages in microvolts */ |
87 | static const unsigned int VBB_VSEL_table[] = { |
88 | 3000000, 2520000, 3150000, 5000000, |
89 | }; |
90 | |
91 | struct tps_info { |
92 | const char *name; |
93 | const char *vin_name; |
94 | u8 n_voltages; |
95 | const unsigned int *voltage_table; |
96 | int enable_time_us; |
97 | }; |
98 | |
99 | static struct tps_info tps65910_regs[] = { |
100 | { |
101 | .name = "vrtc" , |
102 | .vin_name = "vcc7" , |
103 | .n_voltages = ARRAY_SIZE(VRTC_VSEL_table), |
104 | .voltage_table = VRTC_VSEL_table, |
105 | .enable_time_us = 2200, |
106 | }, |
107 | { |
108 | .name = "vio" , |
109 | .vin_name = "vccio" , |
110 | .n_voltages = ARRAY_SIZE(VIO_VSEL_table), |
111 | .voltage_table = VIO_VSEL_table, |
112 | .enable_time_us = 350, |
113 | }, |
114 | { |
115 | .name = "vdd1" , |
116 | .vin_name = "vcc1" , |
117 | .enable_time_us = 350, |
118 | }, |
119 | { |
120 | .name = "vdd2" , |
121 | .vin_name = "vcc2" , |
122 | .enable_time_us = 350, |
123 | }, |
124 | { |
125 | .name = "vdd3" , |
126 | .n_voltages = ARRAY_SIZE(VDD3_VSEL_table), |
127 | .voltage_table = VDD3_VSEL_table, |
128 | .enable_time_us = 200, |
129 | }, |
130 | { |
131 | .name = "vdig1" , |
132 | .vin_name = "vcc6" , |
133 | .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table), |
134 | .voltage_table = VDIG1_VSEL_table, |
135 | .enable_time_us = 100, |
136 | }, |
137 | { |
138 | .name = "vdig2" , |
139 | .vin_name = "vcc6" , |
140 | .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table), |
141 | .voltage_table = VDIG2_VSEL_table, |
142 | .enable_time_us = 100, |
143 | }, |
144 | { |
145 | .name = "vpll" , |
146 | .vin_name = "vcc5" , |
147 | .n_voltages = ARRAY_SIZE(VPLL_VSEL_table), |
148 | .voltage_table = VPLL_VSEL_table, |
149 | .enable_time_us = 100, |
150 | }, |
151 | { |
152 | .name = "vdac" , |
153 | .vin_name = "vcc5" , |
154 | .n_voltages = ARRAY_SIZE(VDAC_VSEL_table), |
155 | .voltage_table = VDAC_VSEL_table, |
156 | .enable_time_us = 100, |
157 | }, |
158 | { |
159 | .name = "vaux1" , |
160 | .vin_name = "vcc4" , |
161 | .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table), |
162 | .voltage_table = VAUX1_VSEL_table, |
163 | .enable_time_us = 100, |
164 | }, |
165 | { |
166 | .name = "vaux2" , |
167 | .vin_name = "vcc4" , |
168 | .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table), |
169 | .voltage_table = VAUX2_VSEL_table, |
170 | .enable_time_us = 100, |
171 | }, |
172 | { |
173 | .name = "vaux33" , |
174 | .vin_name = "vcc3" , |
175 | .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table), |
176 | .voltage_table = VAUX33_VSEL_table, |
177 | .enable_time_us = 100, |
178 | }, |
179 | { |
180 | .name = "vmmc" , |
181 | .vin_name = "vcc3" , |
182 | .n_voltages = ARRAY_SIZE(VMMC_VSEL_table), |
183 | .voltage_table = VMMC_VSEL_table, |
184 | .enable_time_us = 100, |
185 | }, |
186 | { |
187 | .name = "vbb" , |
188 | .vin_name = "vcc7" , |
189 | .n_voltages = ARRAY_SIZE(VBB_VSEL_table), |
190 | .voltage_table = VBB_VSEL_table, |
191 | }, |
192 | }; |
193 | |
194 | static struct tps_info tps65911_regs[] = { |
195 | { |
196 | .name = "vrtc" , |
197 | .vin_name = "vcc7" , |
198 | .enable_time_us = 2200, |
199 | }, |
200 | { |
201 | .name = "vio" , |
202 | .vin_name = "vccio" , |
203 | .n_voltages = ARRAY_SIZE(VIO_VSEL_table), |
204 | .voltage_table = VIO_VSEL_table, |
205 | .enable_time_us = 350, |
206 | }, |
207 | { |
208 | .name = "vdd1" , |
209 | .vin_name = "vcc1" , |
210 | .n_voltages = 0x4C, |
211 | .enable_time_us = 350, |
212 | }, |
213 | { |
214 | .name = "vdd2" , |
215 | .vin_name = "vcc2" , |
216 | .n_voltages = 0x4C, |
217 | .enable_time_us = 350, |
218 | }, |
219 | { |
220 | .name = "vddctrl" , |
221 | .n_voltages = 0x44, |
222 | .enable_time_us = 900, |
223 | }, |
224 | { |
225 | .name = "ldo1" , |
226 | .vin_name = "vcc6" , |
227 | .n_voltages = 0x33, |
228 | .enable_time_us = 420, |
229 | }, |
230 | { |
231 | .name = "ldo2" , |
232 | .vin_name = "vcc6" , |
233 | .n_voltages = 0x33, |
234 | .enable_time_us = 420, |
235 | }, |
236 | { |
237 | .name = "ldo3" , |
238 | .vin_name = "vcc5" , |
239 | .n_voltages = 0x1A, |
240 | .enable_time_us = 230, |
241 | }, |
242 | { |
243 | .name = "ldo4" , |
244 | .vin_name = "vcc5" , |
245 | .n_voltages = 0x33, |
246 | .enable_time_us = 230, |
247 | }, |
248 | { |
249 | .name = "ldo5" , |
250 | .vin_name = "vcc4" , |
251 | .n_voltages = 0x1A, |
252 | .enable_time_us = 230, |
253 | }, |
254 | { |
255 | .name = "ldo6" , |
256 | .vin_name = "vcc3" , |
257 | .n_voltages = 0x1A, |
258 | .enable_time_us = 230, |
259 | }, |
260 | { |
261 | .name = "ldo7" , |
262 | .vin_name = "vcc3" , |
263 | .n_voltages = 0x1A, |
264 | .enable_time_us = 230, |
265 | }, |
266 | { |
267 | .name = "ldo8" , |
268 | .vin_name = "vcc3" , |
269 | .n_voltages = 0x1A, |
270 | .enable_time_us = 230, |
271 | }, |
272 | }; |
273 | |
274 | #define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits)) |
275 | static unsigned int tps65910_ext_sleep_control[] = { |
276 | 0, |
277 | EXT_CONTROL_REG_BITS(VIO, 1, 0), |
278 | EXT_CONTROL_REG_BITS(VDD1, 1, 1), |
279 | EXT_CONTROL_REG_BITS(VDD2, 1, 2), |
280 | EXT_CONTROL_REG_BITS(VDD3, 1, 3), |
281 | EXT_CONTROL_REG_BITS(VDIG1, 0, 1), |
282 | EXT_CONTROL_REG_BITS(VDIG2, 0, 2), |
283 | EXT_CONTROL_REG_BITS(VPLL, 0, 6), |
284 | EXT_CONTROL_REG_BITS(VDAC, 0, 7), |
285 | EXT_CONTROL_REG_BITS(VAUX1, 0, 3), |
286 | EXT_CONTROL_REG_BITS(VAUX2, 0, 4), |
287 | EXT_CONTROL_REG_BITS(VAUX33, 0, 5), |
288 | EXT_CONTROL_REG_BITS(VMMC, 0, 0), |
289 | }; |
290 | |
291 | static unsigned int tps65911_ext_sleep_control[] = { |
292 | 0, |
293 | EXT_CONTROL_REG_BITS(VIO, 1, 0), |
294 | EXT_CONTROL_REG_BITS(VDD1, 1, 1), |
295 | EXT_CONTROL_REG_BITS(VDD2, 1, 2), |
296 | EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3), |
297 | EXT_CONTROL_REG_BITS(LDO1, 0, 1), |
298 | EXT_CONTROL_REG_BITS(LDO2, 0, 2), |
299 | EXT_CONTROL_REG_BITS(LDO3, 0, 7), |
300 | EXT_CONTROL_REG_BITS(LDO4, 0, 6), |
301 | EXT_CONTROL_REG_BITS(LDO5, 0, 3), |
302 | EXT_CONTROL_REG_BITS(LDO6, 0, 0), |
303 | EXT_CONTROL_REG_BITS(LDO7, 0, 5), |
304 | EXT_CONTROL_REG_BITS(LDO8, 0, 4), |
305 | }; |
306 | |
307 | struct tps65910_reg { |
308 | struct regulator_desc *desc; |
309 | struct tps65910 *mfd; |
310 | struct regulator_dev **rdev; |
311 | struct tps_info **info; |
312 | int num_regulators; |
313 | int mode; |
314 | int (*get_ctrl_reg)(int); |
315 | unsigned int *ext_sleep_control; |
316 | unsigned int board_ext_control[TPS65910_NUM_REGS]; |
317 | }; |
318 | |
319 | static int tps65910_get_ctrl_register(int id) |
320 | { |
321 | switch (id) { |
322 | case TPS65910_REG_VRTC: |
323 | return TPS65910_VRTC; |
324 | case TPS65910_REG_VIO: |
325 | return TPS65910_VIO; |
326 | case TPS65910_REG_VDD1: |
327 | return TPS65910_VDD1; |
328 | case TPS65910_REG_VDD2: |
329 | return TPS65910_VDD2; |
330 | case TPS65910_REG_VDD3: |
331 | return TPS65910_VDD3; |
332 | case TPS65910_REG_VDIG1: |
333 | return TPS65910_VDIG1; |
334 | case TPS65910_REG_VDIG2: |
335 | return TPS65910_VDIG2; |
336 | case TPS65910_REG_VPLL: |
337 | return TPS65910_VPLL; |
338 | case TPS65910_REG_VDAC: |
339 | return TPS65910_VDAC; |
340 | case TPS65910_REG_VAUX1: |
341 | return TPS65910_VAUX1; |
342 | case TPS65910_REG_VAUX2: |
343 | return TPS65910_VAUX2; |
344 | case TPS65910_REG_VAUX33: |
345 | return TPS65910_VAUX33; |
346 | case TPS65910_REG_VMMC: |
347 | return TPS65910_VMMC; |
348 | case TPS65910_REG_VBB: |
349 | return TPS65910_BBCH; |
350 | default: |
351 | return -EINVAL; |
352 | } |
353 | } |
354 | |
355 | static int tps65911_get_ctrl_register(int id) |
356 | { |
357 | switch (id) { |
358 | case TPS65910_REG_VRTC: |
359 | return TPS65910_VRTC; |
360 | case TPS65910_REG_VIO: |
361 | return TPS65910_VIO; |
362 | case TPS65910_REG_VDD1: |
363 | return TPS65910_VDD1; |
364 | case TPS65910_REG_VDD2: |
365 | return TPS65910_VDD2; |
366 | case TPS65911_REG_VDDCTRL: |
367 | return TPS65911_VDDCTRL; |
368 | case TPS65911_REG_LDO1: |
369 | return TPS65911_LDO1; |
370 | case TPS65911_REG_LDO2: |
371 | return TPS65911_LDO2; |
372 | case TPS65911_REG_LDO3: |
373 | return TPS65911_LDO3; |
374 | case TPS65911_REG_LDO4: |
375 | return TPS65911_LDO4; |
376 | case TPS65911_REG_LDO5: |
377 | return TPS65911_LDO5; |
378 | case TPS65911_REG_LDO6: |
379 | return TPS65911_LDO6; |
380 | case TPS65911_REG_LDO7: |
381 | return TPS65911_LDO7; |
382 | case TPS65911_REG_LDO8: |
383 | return TPS65911_LDO8; |
384 | default: |
385 | return -EINVAL; |
386 | } |
387 | } |
388 | |
389 | static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode) |
390 | { |
391 | struct tps65910_reg *pmic = rdev_get_drvdata(rdev: dev); |
392 | struct regmap *regmap = rdev_get_regmap(rdev: dev); |
393 | int reg, id = rdev_get_id(rdev: dev); |
394 | |
395 | reg = pmic->get_ctrl_reg(id); |
396 | if (reg < 0) |
397 | return reg; |
398 | |
399 | switch (mode) { |
400 | case REGULATOR_MODE_NORMAL: |
401 | return regmap_update_bits(map: regmap, reg, |
402 | LDO_ST_MODE_BIT | LDO_ST_ON_BIT, |
403 | LDO_ST_ON_BIT); |
404 | case REGULATOR_MODE_IDLE: |
405 | return regmap_set_bits(map: regmap, reg, |
406 | LDO_ST_ON_BIT | LDO_ST_MODE_BIT); |
407 | case REGULATOR_MODE_STANDBY: |
408 | return regmap_clear_bits(map: regmap, reg, LDO_ST_ON_BIT); |
409 | } |
410 | |
411 | return -EINVAL; |
412 | } |
413 | |
414 | static unsigned int tps65910_get_mode(struct regulator_dev *dev) |
415 | { |
416 | struct tps65910_reg *pmic = rdev_get_drvdata(rdev: dev); |
417 | struct regmap *regmap = rdev_get_regmap(rdev: dev); |
418 | int ret, reg, value, id = rdev_get_id(rdev: dev); |
419 | |
420 | reg = pmic->get_ctrl_reg(id); |
421 | if (reg < 0) |
422 | return reg; |
423 | |
424 | ret = regmap_read(map: regmap, reg, val: &value); |
425 | if (ret < 0) |
426 | return ret; |
427 | |
428 | if (!(value & LDO_ST_ON_BIT)) |
429 | return REGULATOR_MODE_STANDBY; |
430 | else if (value & LDO_ST_MODE_BIT) |
431 | return REGULATOR_MODE_IDLE; |
432 | else |
433 | return REGULATOR_MODE_NORMAL; |
434 | } |
435 | |
436 | static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev) |
437 | { |
438 | struct regmap *regmap = rdev_get_regmap(rdev: dev); |
439 | int ret, id = rdev_get_id(rdev: dev); |
440 | int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0; |
441 | |
442 | switch (id) { |
443 | case TPS65910_REG_VDD1: |
444 | ret = regmap_read(map: regmap, TPS65910_VDD1_OP, val: &opvsel); |
445 | if (ret < 0) |
446 | return ret; |
447 | ret = regmap_read(map: regmap, TPS65910_VDD1, val: &mult); |
448 | if (ret < 0) |
449 | return ret; |
450 | mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT; |
451 | ret = regmap_read(map: regmap, TPS65910_VDD1_SR, val: &srvsel); |
452 | if (ret < 0) |
453 | return ret; |
454 | sr = opvsel & VDD1_OP_CMD_MASK; |
455 | opvsel &= VDD1_OP_SEL_MASK; |
456 | srvsel &= VDD1_SR_SEL_MASK; |
457 | vselmax = 75; |
458 | break; |
459 | case TPS65910_REG_VDD2: |
460 | ret = regmap_read(map: regmap, TPS65910_VDD2_OP, val: &opvsel); |
461 | if (ret < 0) |
462 | return ret; |
463 | ret = regmap_read(map: regmap, TPS65910_VDD2, val: &mult); |
464 | if (ret < 0) |
465 | return ret; |
466 | mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT; |
467 | ret = regmap_read(map: regmap, TPS65910_VDD2_SR, val: &srvsel); |
468 | if (ret < 0) |
469 | return ret; |
470 | sr = opvsel & VDD2_OP_CMD_MASK; |
471 | opvsel &= VDD2_OP_SEL_MASK; |
472 | srvsel &= VDD2_SR_SEL_MASK; |
473 | vselmax = 75; |
474 | break; |
475 | case TPS65911_REG_VDDCTRL: |
476 | ret = regmap_read(map: regmap, TPS65911_VDDCTRL_OP, val: &opvsel); |
477 | if (ret < 0) |
478 | return ret; |
479 | ret = regmap_read(map: regmap, TPS65911_VDDCTRL_SR, val: &srvsel); |
480 | if (ret < 0) |
481 | return ret; |
482 | sr = opvsel & VDDCTRL_OP_CMD_MASK; |
483 | opvsel &= VDDCTRL_OP_SEL_MASK; |
484 | srvsel &= VDDCTRL_SR_SEL_MASK; |
485 | vselmax = 64; |
486 | break; |
487 | } |
488 | |
489 | /* multiplier 0 == 1 but 2,3 normal */ |
490 | if (!mult) |
491 | mult = 1; |
492 | |
493 | if (sr) { |
494 | /* normalise to valid range */ |
495 | if (srvsel < 3) |
496 | srvsel = 3; |
497 | if (srvsel > vselmax) |
498 | srvsel = vselmax; |
499 | return srvsel - 3; |
500 | } else { |
501 | |
502 | /* normalise to valid range*/ |
503 | if (opvsel < 3) |
504 | opvsel = 3; |
505 | if (opvsel > vselmax) |
506 | opvsel = vselmax; |
507 | return opvsel - 3; |
508 | } |
509 | return -EINVAL; |
510 | } |
511 | |
512 | static int tps65910_get_voltage_sel(struct regulator_dev *dev) |
513 | { |
514 | struct tps65910_reg *pmic = rdev_get_drvdata(rdev: dev); |
515 | struct regmap *regmap = rdev_get_regmap(rdev: dev); |
516 | int ret, reg, value, id = rdev_get_id(rdev: dev); |
517 | |
518 | reg = pmic->get_ctrl_reg(id); |
519 | if (reg < 0) |
520 | return reg; |
521 | |
522 | ret = regmap_read(map: regmap, reg, val: &value); |
523 | if (ret < 0) |
524 | return ret; |
525 | |
526 | switch (id) { |
527 | case TPS65910_REG_VIO: |
528 | case TPS65910_REG_VDIG1: |
529 | case TPS65910_REG_VDIG2: |
530 | case TPS65910_REG_VPLL: |
531 | case TPS65910_REG_VDAC: |
532 | case TPS65910_REG_VAUX1: |
533 | case TPS65910_REG_VAUX2: |
534 | case TPS65910_REG_VAUX33: |
535 | case TPS65910_REG_VMMC: |
536 | value &= LDO_SEL_MASK; |
537 | value >>= LDO_SEL_SHIFT; |
538 | break; |
539 | case TPS65910_REG_VBB: |
540 | value &= BBCH_BBSEL_MASK; |
541 | value >>= BBCH_BBSEL_SHIFT; |
542 | break; |
543 | default: |
544 | return -EINVAL; |
545 | } |
546 | |
547 | return value; |
548 | } |
549 | |
550 | static int tps65910_get_voltage_vdd3(struct regulator_dev *dev) |
551 | { |
552 | return dev->desc->volt_table[0]; |
553 | } |
554 | |
555 | static int tps65911_get_voltage_sel(struct regulator_dev *dev) |
556 | { |
557 | struct tps65910_reg *pmic = rdev_get_drvdata(rdev: dev); |
558 | struct regmap *regmap = rdev_get_regmap(rdev: dev); |
559 | int ret, id = rdev_get_id(rdev: dev); |
560 | unsigned int value, reg; |
561 | |
562 | reg = pmic->get_ctrl_reg(id); |
563 | |
564 | ret = regmap_read(map: regmap, reg, val: &value); |
565 | if (ret < 0) |
566 | return ret; |
567 | |
568 | switch (id) { |
569 | case TPS65911_REG_LDO1: |
570 | case TPS65911_REG_LDO2: |
571 | case TPS65911_REG_LDO4: |
572 | value &= LDO1_SEL_MASK; |
573 | value >>= LDO_SEL_SHIFT; |
574 | break; |
575 | case TPS65911_REG_LDO3: |
576 | case TPS65911_REG_LDO5: |
577 | case TPS65911_REG_LDO6: |
578 | case TPS65911_REG_LDO7: |
579 | case TPS65911_REG_LDO8: |
580 | value &= LDO3_SEL_MASK; |
581 | value >>= LDO_SEL_SHIFT; |
582 | break; |
583 | case TPS65910_REG_VIO: |
584 | value &= LDO_SEL_MASK; |
585 | value >>= LDO_SEL_SHIFT; |
586 | break; |
587 | default: |
588 | return -EINVAL; |
589 | } |
590 | |
591 | return value; |
592 | } |
593 | |
594 | static int tps65910_set_voltage_dcdc_sel(struct regulator_dev *dev, |
595 | unsigned selector) |
596 | { |
597 | struct regmap *regmap = rdev_get_regmap(rdev: dev); |
598 | int id = rdev_get_id(rdev: dev), vsel; |
599 | int dcdc_mult = 0; |
600 | |
601 | switch (id) { |
602 | case TPS65910_REG_VDD1: |
603 | dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1; |
604 | if (dcdc_mult == 1) |
605 | dcdc_mult--; |
606 | vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3; |
607 | |
608 | regmap_update_bits(map: regmap, TPS65910_VDD1, VDD1_VGAIN_SEL_MASK, |
609 | val: dcdc_mult << VDD1_VGAIN_SEL_SHIFT); |
610 | regmap_write(map: regmap, TPS65910_VDD1_OP, val: vsel); |
611 | break; |
612 | case TPS65910_REG_VDD2: |
613 | dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1; |
614 | if (dcdc_mult == 1) |
615 | dcdc_mult--; |
616 | vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3; |
617 | |
618 | regmap_update_bits(map: regmap, TPS65910_VDD2, VDD1_VGAIN_SEL_MASK, |
619 | val: dcdc_mult << VDD2_VGAIN_SEL_SHIFT); |
620 | regmap_write(map: regmap, TPS65910_VDD2_OP, val: vsel); |
621 | break; |
622 | case TPS65911_REG_VDDCTRL: |
623 | vsel = selector + 3; |
624 | regmap_write(map: regmap, TPS65911_VDDCTRL_OP, val: vsel); |
625 | break; |
626 | } |
627 | |
628 | return 0; |
629 | } |
630 | |
631 | static int tps65910_set_voltage_sel(struct regulator_dev *dev, |
632 | unsigned selector) |
633 | { |
634 | struct tps65910_reg *pmic = rdev_get_drvdata(rdev: dev); |
635 | struct regmap *regmap = rdev_get_regmap(rdev: dev); |
636 | int reg, id = rdev_get_id(rdev: dev); |
637 | |
638 | reg = pmic->get_ctrl_reg(id); |
639 | if (reg < 0) |
640 | return reg; |
641 | |
642 | switch (id) { |
643 | case TPS65910_REG_VIO: |
644 | case TPS65910_REG_VDIG1: |
645 | case TPS65910_REG_VDIG2: |
646 | case TPS65910_REG_VPLL: |
647 | case TPS65910_REG_VDAC: |
648 | case TPS65910_REG_VAUX1: |
649 | case TPS65910_REG_VAUX2: |
650 | case TPS65910_REG_VAUX33: |
651 | case TPS65910_REG_VMMC: |
652 | return regmap_update_bits(map: regmap, reg, LDO_SEL_MASK, |
653 | val: selector << LDO_SEL_SHIFT); |
654 | case TPS65910_REG_VBB: |
655 | return regmap_update_bits(map: regmap, reg, BBCH_BBSEL_MASK, |
656 | val: selector << BBCH_BBSEL_SHIFT); |
657 | } |
658 | |
659 | return -EINVAL; |
660 | } |
661 | |
662 | static int tps65911_set_voltage_sel(struct regulator_dev *dev, |
663 | unsigned selector) |
664 | { |
665 | struct tps65910_reg *pmic = rdev_get_drvdata(rdev: dev); |
666 | struct regmap *regmap = rdev_get_regmap(rdev: dev); |
667 | int reg, id = rdev_get_id(rdev: dev); |
668 | |
669 | reg = pmic->get_ctrl_reg(id); |
670 | if (reg < 0) |
671 | return reg; |
672 | |
673 | switch (id) { |
674 | case TPS65911_REG_LDO1: |
675 | case TPS65911_REG_LDO2: |
676 | case TPS65911_REG_LDO4: |
677 | return regmap_update_bits(map: regmap, reg, LDO1_SEL_MASK, |
678 | val: selector << LDO_SEL_SHIFT); |
679 | case TPS65911_REG_LDO3: |
680 | case TPS65911_REG_LDO5: |
681 | case TPS65911_REG_LDO6: |
682 | case TPS65911_REG_LDO7: |
683 | case TPS65911_REG_LDO8: |
684 | return regmap_update_bits(map: regmap, reg, LDO3_SEL_MASK, |
685 | val: selector << LDO_SEL_SHIFT); |
686 | case TPS65910_REG_VIO: |
687 | return regmap_update_bits(map: regmap, reg, LDO_SEL_MASK, |
688 | val: selector << LDO_SEL_SHIFT); |
689 | case TPS65910_REG_VBB: |
690 | return regmap_update_bits(map: regmap, reg, BBCH_BBSEL_MASK, |
691 | val: selector << BBCH_BBSEL_SHIFT); |
692 | } |
693 | |
694 | return -EINVAL; |
695 | } |
696 | |
697 | |
698 | static int tps65910_list_voltage_dcdc(struct regulator_dev *dev, |
699 | unsigned selector) |
700 | { |
701 | int volt, mult = 1, id = rdev_get_id(rdev: dev); |
702 | |
703 | switch (id) { |
704 | case TPS65910_REG_VDD1: |
705 | case TPS65910_REG_VDD2: |
706 | mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1; |
707 | volt = VDD1_2_MIN_VOLT + |
708 | (selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET; |
709 | break; |
710 | case TPS65911_REG_VDDCTRL: |
711 | volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET); |
712 | break; |
713 | default: |
714 | BUG(); |
715 | return -EINVAL; |
716 | } |
717 | |
718 | return volt * 100 * mult; |
719 | } |
720 | |
721 | static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector) |
722 | { |
723 | struct tps65910_reg *pmic = rdev_get_drvdata(rdev: dev); |
724 | int step_mv = 0, id = rdev_get_id(rdev: dev); |
725 | |
726 | switch (id) { |
727 | case TPS65911_REG_LDO1: |
728 | case TPS65911_REG_LDO2: |
729 | case TPS65911_REG_LDO4: |
730 | /* The first 5 values of the selector correspond to 1V */ |
731 | if (selector < 5) |
732 | selector = 0; |
733 | else |
734 | selector -= 4; |
735 | |
736 | step_mv = 50; |
737 | break; |
738 | case TPS65911_REG_LDO3: |
739 | case TPS65911_REG_LDO5: |
740 | case TPS65911_REG_LDO6: |
741 | case TPS65911_REG_LDO7: |
742 | case TPS65911_REG_LDO8: |
743 | /* The first 3 values of the selector correspond to 1V */ |
744 | if (selector < 3) |
745 | selector = 0; |
746 | else |
747 | selector -= 2; |
748 | |
749 | step_mv = 100; |
750 | break; |
751 | case TPS65910_REG_VIO: |
752 | return pmic->info[id]->voltage_table[selector]; |
753 | default: |
754 | return -EINVAL; |
755 | } |
756 | |
757 | return (LDO_MIN_VOLT + selector * step_mv) * 1000; |
758 | } |
759 | |
760 | /* Regulator ops (except VRTC) */ |
761 | static const struct regulator_ops tps65910_ops_dcdc = { |
762 | .is_enabled = regulator_is_enabled_regmap, |
763 | .enable = regulator_enable_regmap, |
764 | .disable = regulator_disable_regmap, |
765 | .set_mode = tps65910_set_mode, |
766 | .get_mode = tps65910_get_mode, |
767 | .get_voltage_sel = tps65910_get_voltage_dcdc_sel, |
768 | .set_voltage_sel = tps65910_set_voltage_dcdc_sel, |
769 | .set_voltage_time_sel = regulator_set_voltage_time_sel, |
770 | .list_voltage = tps65910_list_voltage_dcdc, |
771 | .map_voltage = regulator_map_voltage_ascend, |
772 | }; |
773 | |
774 | static const struct regulator_ops tps65910_ops_vdd3 = { |
775 | .is_enabled = regulator_is_enabled_regmap, |
776 | .enable = regulator_enable_regmap, |
777 | .disable = regulator_disable_regmap, |
778 | .set_mode = tps65910_set_mode, |
779 | .get_mode = tps65910_get_mode, |
780 | .get_voltage = tps65910_get_voltage_vdd3, |
781 | .list_voltage = regulator_list_voltage_table, |
782 | .map_voltage = regulator_map_voltage_ascend, |
783 | }; |
784 | |
785 | static const struct regulator_ops tps65910_ops_vbb = { |
786 | .is_enabled = regulator_is_enabled_regmap, |
787 | .enable = regulator_enable_regmap, |
788 | .disable = regulator_disable_regmap, |
789 | .set_mode = tps65910_set_mode, |
790 | .get_mode = tps65910_get_mode, |
791 | .get_voltage_sel = tps65910_get_voltage_sel, |
792 | .set_voltage_sel = tps65910_set_voltage_sel, |
793 | .list_voltage = regulator_list_voltage_table, |
794 | .map_voltage = regulator_map_voltage_iterate, |
795 | }; |
796 | |
797 | static const struct regulator_ops tps65910_ops = { |
798 | .is_enabled = regulator_is_enabled_regmap, |
799 | .enable = regulator_enable_regmap, |
800 | .disable = regulator_disable_regmap, |
801 | .set_mode = tps65910_set_mode, |
802 | .get_mode = tps65910_get_mode, |
803 | .get_voltage_sel = tps65910_get_voltage_sel, |
804 | .set_voltage_sel = tps65910_set_voltage_sel, |
805 | .list_voltage = regulator_list_voltage_table, |
806 | .map_voltage = regulator_map_voltage_ascend, |
807 | }; |
808 | |
809 | static const struct regulator_ops tps65911_ops = { |
810 | .is_enabled = regulator_is_enabled_regmap, |
811 | .enable = regulator_enable_regmap, |
812 | .disable = regulator_disable_regmap, |
813 | .set_mode = tps65910_set_mode, |
814 | .get_mode = tps65910_get_mode, |
815 | .get_voltage_sel = tps65911_get_voltage_sel, |
816 | .set_voltage_sel = tps65911_set_voltage_sel, |
817 | .list_voltage = tps65911_list_voltage, |
818 | .map_voltage = regulator_map_voltage_ascend, |
819 | }; |
820 | |
821 | static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic, |
822 | int id, int ext_sleep_config) |
823 | { |
824 | struct tps65910 *mfd = pmic->mfd; |
825 | u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF; |
826 | u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF); |
827 | int ret; |
828 | |
829 | /* |
830 | * Regulator can not be control from multiple external input EN1, EN2 |
831 | * and EN3 together. |
832 | */ |
833 | if (ext_sleep_config & EXT_SLEEP_CONTROL) { |
834 | int en_count; |
835 | en_count = ((ext_sleep_config & |
836 | TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0); |
837 | en_count += ((ext_sleep_config & |
838 | TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0); |
839 | en_count += ((ext_sleep_config & |
840 | TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0); |
841 | en_count += ((ext_sleep_config & |
842 | TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0); |
843 | if (en_count > 1) { |
844 | dev_err(mfd->dev, |
845 | "External sleep control flag is not proper\n" ); |
846 | return -EINVAL; |
847 | } |
848 | } |
849 | |
850 | pmic->board_ext_control[id] = ext_sleep_config; |
851 | |
852 | /* External EN1 control */ |
853 | if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) |
854 | ret = regmap_set_bits(map: mfd->regmap, |
855 | TPS65910_EN1_LDO_ASS + regoffs, bits: bit_pos); |
856 | else |
857 | ret = regmap_clear_bits(map: mfd->regmap, |
858 | TPS65910_EN1_LDO_ASS + regoffs, bits: bit_pos); |
859 | if (ret < 0) { |
860 | dev_err(mfd->dev, |
861 | "Error in configuring external control EN1\n" ); |
862 | return ret; |
863 | } |
864 | |
865 | /* External EN2 control */ |
866 | if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) |
867 | ret = regmap_set_bits(map: mfd->regmap, |
868 | TPS65910_EN2_LDO_ASS + regoffs, bits: bit_pos); |
869 | else |
870 | ret = regmap_clear_bits(map: mfd->regmap, |
871 | TPS65910_EN2_LDO_ASS + regoffs, bits: bit_pos); |
872 | if (ret < 0) { |
873 | dev_err(mfd->dev, |
874 | "Error in configuring external control EN2\n" ); |
875 | return ret; |
876 | } |
877 | |
878 | /* External EN3 control for TPS65910 LDO only */ |
879 | if ((tps65910_chip_id(tps65910: mfd) == TPS65910) && |
880 | (id >= TPS65910_REG_VDIG1)) { |
881 | if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) |
882 | ret = regmap_set_bits(map: mfd->regmap, |
883 | TPS65910_EN3_LDO_ASS + regoffs, bits: bit_pos); |
884 | else |
885 | ret = regmap_clear_bits(map: mfd->regmap, |
886 | TPS65910_EN3_LDO_ASS + regoffs, bits: bit_pos); |
887 | if (ret < 0) { |
888 | dev_err(mfd->dev, |
889 | "Error in configuring external control EN3\n" ); |
890 | return ret; |
891 | } |
892 | } |
893 | |
894 | /* Return if no external control is selected */ |
895 | if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) { |
896 | /* Clear all sleep controls */ |
897 | ret = regmap_clear_bits(map: mfd->regmap, |
898 | TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bits: bit_pos); |
899 | if (!ret) |
900 | ret = regmap_clear_bits(map: mfd->regmap, |
901 | TPS65910_SLEEP_SET_LDO_OFF + regoffs, bits: bit_pos); |
902 | if (ret < 0) |
903 | dev_err(mfd->dev, |
904 | "Error in configuring SLEEP register\n" ); |
905 | return ret; |
906 | } |
907 | |
908 | /* |
909 | * For regulator that has separate operational and sleep register make |
910 | * sure that operational is used and clear sleep register to turn |
911 | * regulator off when external control is inactive |
912 | */ |
913 | if ((id == TPS65910_REG_VDD1) || |
914 | (id == TPS65910_REG_VDD2) || |
915 | ((id == TPS65911_REG_VDDCTRL) && |
916 | (tps65910_chip_id(tps65910: mfd) == TPS65911))) { |
917 | int op_reg_add = pmic->get_ctrl_reg(id) + 1; |
918 | int sr_reg_add = pmic->get_ctrl_reg(id) + 2; |
919 | int opvsel, srvsel; |
920 | |
921 | ret = regmap_read(map: mfd->regmap, reg: op_reg_add, val: &opvsel); |
922 | if (ret < 0) |
923 | return ret; |
924 | ret = regmap_read(map: mfd->regmap, reg: sr_reg_add, val: &srvsel); |
925 | if (ret < 0) |
926 | return ret; |
927 | |
928 | if (opvsel & VDD1_OP_CMD_MASK) { |
929 | u8 reg_val = srvsel & VDD1_OP_SEL_MASK; |
930 | |
931 | ret = regmap_write(map: mfd->regmap, reg: op_reg_add, val: reg_val); |
932 | if (ret < 0) { |
933 | dev_err(mfd->dev, |
934 | "Error in configuring op register\n" ); |
935 | return ret; |
936 | } |
937 | } |
938 | ret = regmap_write(map: mfd->regmap, reg: sr_reg_add, val: 0); |
939 | if (ret < 0) { |
940 | dev_err(mfd->dev, "Error in setting sr register\n" ); |
941 | return ret; |
942 | } |
943 | } |
944 | |
945 | ret = regmap_clear_bits(map: mfd->regmap, |
946 | TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bits: bit_pos); |
947 | if (!ret) { |
948 | if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) |
949 | ret = regmap_set_bits(map: mfd->regmap, |
950 | TPS65910_SLEEP_SET_LDO_OFF + regoffs, bits: bit_pos); |
951 | else |
952 | ret = regmap_clear_bits(map: mfd->regmap, |
953 | TPS65910_SLEEP_SET_LDO_OFF + regoffs, bits: bit_pos); |
954 | } |
955 | if (ret < 0) |
956 | dev_err(mfd->dev, |
957 | "Error in configuring SLEEP register\n" ); |
958 | |
959 | return ret; |
960 | } |
961 | |
962 | #ifdef CONFIG_OF |
963 | |
964 | static struct of_regulator_match tps65910_matches[] = { |
965 | { .name = "vrtc" , .driver_data = (void *) &tps65910_regs[0] }, |
966 | { .name = "vio" , .driver_data = (void *) &tps65910_regs[1] }, |
967 | { .name = "vdd1" , .driver_data = (void *) &tps65910_regs[2] }, |
968 | { .name = "vdd2" , .driver_data = (void *) &tps65910_regs[3] }, |
969 | { .name = "vdd3" , .driver_data = (void *) &tps65910_regs[4] }, |
970 | { .name = "vdig1" , .driver_data = (void *) &tps65910_regs[5] }, |
971 | { .name = "vdig2" , .driver_data = (void *) &tps65910_regs[6] }, |
972 | { .name = "vpll" , .driver_data = (void *) &tps65910_regs[7] }, |
973 | { .name = "vdac" , .driver_data = (void *) &tps65910_regs[8] }, |
974 | { .name = "vaux1" , .driver_data = (void *) &tps65910_regs[9] }, |
975 | { .name = "vaux2" , .driver_data = (void *) &tps65910_regs[10] }, |
976 | { .name = "vaux33" , .driver_data = (void *) &tps65910_regs[11] }, |
977 | { .name = "vmmc" , .driver_data = (void *) &tps65910_regs[12] }, |
978 | { .name = "vbb" , .driver_data = (void *) &tps65910_regs[13] }, |
979 | }; |
980 | |
981 | static struct of_regulator_match tps65911_matches[] = { |
982 | { .name = "vrtc" , .driver_data = (void *) &tps65911_regs[0] }, |
983 | { .name = "vio" , .driver_data = (void *) &tps65911_regs[1] }, |
984 | { .name = "vdd1" , .driver_data = (void *) &tps65911_regs[2] }, |
985 | { .name = "vdd2" , .driver_data = (void *) &tps65911_regs[3] }, |
986 | { .name = "vddctrl" , .driver_data = (void *) &tps65911_regs[4] }, |
987 | { .name = "ldo1" , .driver_data = (void *) &tps65911_regs[5] }, |
988 | { .name = "ldo2" , .driver_data = (void *) &tps65911_regs[6] }, |
989 | { .name = "ldo3" , .driver_data = (void *) &tps65911_regs[7] }, |
990 | { .name = "ldo4" , .driver_data = (void *) &tps65911_regs[8] }, |
991 | { .name = "ldo5" , .driver_data = (void *) &tps65911_regs[9] }, |
992 | { .name = "ldo6" , .driver_data = (void *) &tps65911_regs[10] }, |
993 | { .name = "ldo7" , .driver_data = (void *) &tps65911_regs[11] }, |
994 | { .name = "ldo8" , .driver_data = (void *) &tps65911_regs[12] }, |
995 | }; |
996 | |
997 | static struct tps65910_board *tps65910_parse_dt_reg_data( |
998 | struct platform_device *pdev, |
999 | struct of_regulator_match **tps65910_reg_matches) |
1000 | { |
1001 | struct tps65910_board *pmic_plat_data; |
1002 | struct tps65910 *tps65910 = dev_get_drvdata(dev: pdev->dev.parent); |
1003 | struct device_node *np, *regulators; |
1004 | struct of_regulator_match *matches; |
1005 | unsigned int prop; |
1006 | int idx = 0, ret, count; |
1007 | |
1008 | pmic_plat_data = devm_kzalloc(dev: &pdev->dev, size: sizeof(*pmic_plat_data), |
1009 | GFP_KERNEL); |
1010 | if (!pmic_plat_data) |
1011 | return NULL; |
1012 | |
1013 | np = pdev->dev.parent->of_node; |
1014 | regulators = of_get_child_by_name(node: np, name: "regulators" ); |
1015 | if (!regulators) { |
1016 | dev_err(&pdev->dev, "regulator node not found\n" ); |
1017 | return NULL; |
1018 | } |
1019 | |
1020 | switch (tps65910_chip_id(tps65910)) { |
1021 | case TPS65910: |
1022 | count = ARRAY_SIZE(tps65910_matches); |
1023 | matches = tps65910_matches; |
1024 | break; |
1025 | case TPS65911: |
1026 | count = ARRAY_SIZE(tps65911_matches); |
1027 | matches = tps65911_matches; |
1028 | break; |
1029 | default: |
1030 | of_node_put(node: regulators); |
1031 | dev_err(&pdev->dev, "Invalid tps chip version\n" ); |
1032 | return NULL; |
1033 | } |
1034 | |
1035 | ret = of_regulator_match(dev: &pdev->dev, node: regulators, matches, num_matches: count); |
1036 | of_node_put(node: regulators); |
1037 | if (ret < 0) { |
1038 | dev_err(&pdev->dev, "Error parsing regulator init data: %d\n" , |
1039 | ret); |
1040 | return NULL; |
1041 | } |
1042 | |
1043 | *tps65910_reg_matches = matches; |
1044 | |
1045 | for (idx = 0; idx < count; idx++) { |
1046 | if (!matches[idx].of_node) |
1047 | continue; |
1048 | |
1049 | pmic_plat_data->tps65910_pmic_init_data[idx] = |
1050 | matches[idx].init_data; |
1051 | |
1052 | ret = of_property_read_u32(np: matches[idx].of_node, |
1053 | propname: "ti,regulator-ext-sleep-control" , out_value: &prop); |
1054 | if (!ret) |
1055 | pmic_plat_data->regulator_ext_sleep_control[idx] = prop; |
1056 | |
1057 | } |
1058 | |
1059 | return pmic_plat_data; |
1060 | } |
1061 | #else |
1062 | static inline struct tps65910_board *tps65910_parse_dt_reg_data( |
1063 | struct platform_device *pdev, |
1064 | struct of_regulator_match **tps65910_reg_matches) |
1065 | { |
1066 | *tps65910_reg_matches = NULL; |
1067 | return NULL; |
1068 | } |
1069 | #endif |
1070 | |
1071 | static int tps65910_probe(struct platform_device *pdev) |
1072 | { |
1073 | struct tps65910 *tps65910 = dev_get_drvdata(dev: pdev->dev.parent); |
1074 | struct regulator_config config = { }; |
1075 | struct tps_info *info; |
1076 | struct regulator_dev *rdev; |
1077 | struct tps65910_reg *pmic; |
1078 | struct tps65910_board *pmic_plat_data; |
1079 | struct of_regulator_match *tps65910_reg_matches = NULL; |
1080 | int i, err; |
1081 | |
1082 | pmic_plat_data = dev_get_platdata(dev: tps65910->dev); |
1083 | if (!pmic_plat_data && tps65910->dev->of_node) |
1084 | pmic_plat_data = tps65910_parse_dt_reg_data(pdev, |
1085 | tps65910_reg_matches: &tps65910_reg_matches); |
1086 | |
1087 | if (!pmic_plat_data) { |
1088 | dev_err(&pdev->dev, "Platform data not found\n" ); |
1089 | return -EINVAL; |
1090 | } |
1091 | |
1092 | pmic = devm_kzalloc(dev: &pdev->dev, size: sizeof(*pmic), GFP_KERNEL); |
1093 | if (!pmic) |
1094 | return -ENOMEM; |
1095 | |
1096 | pmic->mfd = tps65910; |
1097 | platform_set_drvdata(pdev, data: pmic); |
1098 | |
1099 | /* Give control of all register to control port */ |
1100 | err = regmap_set_bits(map: pmic->mfd->regmap, TPS65910_DEVCTRL, |
1101 | DEVCTRL_SR_CTL_I2C_SEL_MASK); |
1102 | if (err < 0) |
1103 | return err; |
1104 | |
1105 | switch (tps65910_chip_id(tps65910)) { |
1106 | case TPS65910: |
1107 | BUILD_BUG_ON(TPS65910_NUM_REGS < ARRAY_SIZE(tps65910_regs)); |
1108 | pmic->get_ctrl_reg = &tps65910_get_ctrl_register; |
1109 | pmic->num_regulators = ARRAY_SIZE(tps65910_regs); |
1110 | pmic->ext_sleep_control = tps65910_ext_sleep_control; |
1111 | info = tps65910_regs; |
1112 | /* Work around silicon erratum SWCZ010: output programmed |
1113 | * voltage level can go higher than expected or crash |
1114 | * Workaround: use no synchronization of DCDC clocks |
1115 | */ |
1116 | regmap_clear_bits(map: pmic->mfd->regmap, TPS65910_DCDCCTRL, |
1117 | DCDCCTRL_DCDCCKSYNC_MASK); |
1118 | break; |
1119 | case TPS65911: |
1120 | BUILD_BUG_ON(TPS65910_NUM_REGS < ARRAY_SIZE(tps65911_regs)); |
1121 | pmic->get_ctrl_reg = &tps65911_get_ctrl_register; |
1122 | pmic->num_regulators = ARRAY_SIZE(tps65911_regs); |
1123 | pmic->ext_sleep_control = tps65911_ext_sleep_control; |
1124 | info = tps65911_regs; |
1125 | break; |
1126 | default: |
1127 | dev_err(&pdev->dev, "Invalid tps chip version\n" ); |
1128 | return -ENODEV; |
1129 | } |
1130 | |
1131 | pmic->desc = devm_kcalloc(dev: &pdev->dev, |
1132 | n: pmic->num_regulators, |
1133 | size: sizeof(struct regulator_desc), |
1134 | GFP_KERNEL); |
1135 | if (!pmic->desc) |
1136 | return -ENOMEM; |
1137 | |
1138 | pmic->info = devm_kcalloc(dev: &pdev->dev, |
1139 | n: pmic->num_regulators, |
1140 | size: sizeof(struct tps_info *), |
1141 | GFP_KERNEL); |
1142 | if (!pmic->info) |
1143 | return -ENOMEM; |
1144 | |
1145 | pmic->rdev = devm_kcalloc(dev: &pdev->dev, |
1146 | n: pmic->num_regulators, |
1147 | size: sizeof(struct regulator_dev *), |
1148 | GFP_KERNEL); |
1149 | if (!pmic->rdev) |
1150 | return -ENOMEM; |
1151 | |
1152 | for (i = 0; i < pmic->num_regulators; i++, info++) { |
1153 | /* Register the regulators */ |
1154 | pmic->info[i] = info; |
1155 | |
1156 | pmic->desc[i].name = info->name; |
1157 | pmic->desc[i].supply_name = info->vin_name; |
1158 | pmic->desc[i].id = i; |
1159 | pmic->desc[i].n_voltages = info->n_voltages; |
1160 | pmic->desc[i].enable_time = info->enable_time_us; |
1161 | |
1162 | if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) { |
1163 | pmic->desc[i].ops = &tps65910_ops_dcdc; |
1164 | pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE * |
1165 | VDD1_2_NUM_VOLT_COARSE; |
1166 | pmic->desc[i].ramp_delay = 12500; |
1167 | } else if (i == TPS65910_REG_VDD3) { |
1168 | if (tps65910_chip_id(tps65910) == TPS65910) { |
1169 | pmic->desc[i].ops = &tps65910_ops_vdd3; |
1170 | pmic->desc[i].volt_table = info->voltage_table; |
1171 | } else { |
1172 | pmic->desc[i].ops = &tps65910_ops_dcdc; |
1173 | pmic->desc[i].ramp_delay = 5000; |
1174 | } |
1175 | } else if (i == TPS65910_REG_VBB && |
1176 | tps65910_chip_id(tps65910) == TPS65910) { |
1177 | pmic->desc[i].ops = &tps65910_ops_vbb; |
1178 | pmic->desc[i].volt_table = info->voltage_table; |
1179 | } else { |
1180 | if (tps65910_chip_id(tps65910) == TPS65910) { |
1181 | pmic->desc[i].ops = &tps65910_ops; |
1182 | pmic->desc[i].volt_table = info->voltage_table; |
1183 | } else { |
1184 | pmic->desc[i].ops = &tps65911_ops; |
1185 | } |
1186 | } |
1187 | |
1188 | err = tps65910_set_ext_sleep_config(pmic, id: i, |
1189 | ext_sleep_config: pmic_plat_data->regulator_ext_sleep_control[i]); |
1190 | /* |
1191 | * Failing on regulator for configuring externally control |
1192 | * is not a serious issue, just throw warning. |
1193 | */ |
1194 | if (err < 0) |
1195 | dev_warn(tps65910->dev, |
1196 | "Failed to initialise ext control config\n" ); |
1197 | |
1198 | pmic->desc[i].type = REGULATOR_VOLTAGE; |
1199 | pmic->desc[i].owner = THIS_MODULE; |
1200 | pmic->desc[i].enable_reg = pmic->get_ctrl_reg(i); |
1201 | pmic->desc[i].enable_mask = TPS65910_SUPPLY_STATE_ENABLED; |
1202 | |
1203 | config.dev = tps65910->dev; |
1204 | config.init_data = pmic_plat_data->tps65910_pmic_init_data[i]; |
1205 | config.driver_data = pmic; |
1206 | config.regmap = tps65910->regmap; |
1207 | |
1208 | if (tps65910_reg_matches) |
1209 | config.of_node = tps65910_reg_matches[i].of_node; |
1210 | |
1211 | rdev = devm_regulator_register(dev: &pdev->dev, regulator_desc: &pmic->desc[i], |
1212 | config: &config); |
1213 | if (IS_ERR(ptr: rdev)) |
1214 | return dev_err_probe(dev: tps65910->dev, err: PTR_ERR(ptr: rdev), |
1215 | fmt: "failed to register %s regulator\n" , |
1216 | pdev->name); |
1217 | |
1218 | /* Save regulator for cleanup */ |
1219 | pmic->rdev[i] = rdev; |
1220 | } |
1221 | return 0; |
1222 | } |
1223 | |
1224 | static void tps65910_shutdown(struct platform_device *pdev) |
1225 | { |
1226 | struct tps65910_reg *pmic = platform_get_drvdata(pdev); |
1227 | int i; |
1228 | |
1229 | /* |
1230 | * Before bootloader jumps to kernel, it makes sure that required |
1231 | * external control signals are in desired state so that given rails |
1232 | * can be configure accordingly. |
1233 | * If rails are configured to be controlled from external control |
1234 | * then before shutting down/rebooting the system, the external |
1235 | * control configuration need to be remove from the rails so that |
1236 | * its output will be available as per register programming even |
1237 | * if external controls are removed. This is require when the POR |
1238 | * value of the control signals are not in active state and before |
1239 | * bootloader initializes it, the system requires the rail output |
1240 | * to be active for booting. |
1241 | */ |
1242 | for (i = 0; i < pmic->num_regulators; i++) { |
1243 | int err; |
1244 | if (!pmic->rdev[i]) |
1245 | continue; |
1246 | |
1247 | err = tps65910_set_ext_sleep_config(pmic, id: i, ext_sleep_config: 0); |
1248 | if (err < 0) |
1249 | dev_err(&pdev->dev, |
1250 | "Error in clearing external control\n" ); |
1251 | } |
1252 | } |
1253 | |
1254 | static struct platform_driver tps65910_driver = { |
1255 | .driver = { |
1256 | .name = "tps65910-pmic" , |
1257 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
1258 | }, |
1259 | .probe = tps65910_probe, |
1260 | .shutdown = tps65910_shutdown, |
1261 | }; |
1262 | |
1263 | static int __init tps65910_init(void) |
1264 | { |
1265 | return platform_driver_register(&tps65910_driver); |
1266 | } |
1267 | subsys_initcall(tps65910_init); |
1268 | |
1269 | static void __exit tps65910_cleanup(void) |
1270 | { |
1271 | platform_driver_unregister(&tps65910_driver); |
1272 | } |
1273 | module_exit(tps65910_cleanup); |
1274 | |
1275 | MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>" ); |
1276 | MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver" ); |
1277 | MODULE_LICENSE("GPL v2" ); |
1278 | MODULE_ALIAS("platform:tps65910-pmic" ); |
1279 | |