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/gpio.h>
21 #include <linux/mfd/tps65910.h>
22 #include <linux/regulator/of_regulator.h>
23 
24 #define TPS65910_SUPPLY_STATE_ENABLED	0x1
25 #define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 |	\
26 			TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 |		\
27 			TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 |		\
28 			TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
29 
30 /* supported VIO voltages in microvolts */
31 static const unsigned int VIO_VSEL_table[] = {
32 	1500000, 1800000, 2500000, 3300000,
33 };
34 
35 /* VSEL tables for TPS65910 specific LDOs and dcdc's */
36 
37 /* supported VRTC voltages in microvolts */
38 static const unsigned int VRTC_VSEL_table[] = {
39 	1800000,
40 };
41 
42 /* supported VDD3 voltages in microvolts */
43 static const unsigned int VDD3_VSEL_table[] = {
44 	5000000,
45 };
46 
47 /* supported VDIG1 voltages in microvolts */
48 static const unsigned int VDIG1_VSEL_table[] = {
49 	1200000, 1500000, 1800000, 2700000,
50 };
51 
52 /* supported VDIG2 voltages in microvolts */
53 static const unsigned int VDIG2_VSEL_table[] = {
54 	1000000, 1100000, 1200000, 1800000,
55 };
56 
57 /* supported VPLL voltages in microvolts */
58 static const unsigned int VPLL_VSEL_table[] = {
59 	1000000, 1100000, 1800000, 2500000,
60 };
61 
62 /* supported VDAC voltages in microvolts */
63 static const unsigned int VDAC_VSEL_table[] = {
64 	1800000, 2600000, 2800000, 2850000,
65 };
66 
67 /* supported VAUX1 voltages in microvolts */
68 static const unsigned int VAUX1_VSEL_table[] = {
69 	1800000, 2500000, 2800000, 2850000,
70 };
71 
72 /* supported VAUX2 voltages in microvolts */
73 static const unsigned int VAUX2_VSEL_table[] = {
74 	1800000, 2800000, 2900000, 3300000,
75 };
76 
77 /* supported VAUX33 voltages in microvolts */
78 static const unsigned int VAUX33_VSEL_table[] = {
79 	1800000, 2000000, 2800000, 3300000,
80 };
81 
82 /* supported VMMC voltages in microvolts */
83 static const unsigned int VMMC_VSEL_table[] = {
84 	1800000, 2800000, 3000000, 3300000,
85 };
86 
87 /* supported BBCH voltages in microvolts */
88 static const unsigned int VBB_VSEL_table[] = {
89 	3000000, 2520000, 3150000, 5000000,
90 };
91 
92 struct tps_info {
93 	const char *name;
94 	const char *vin_name;
95 	u8 n_voltages;
96 	const unsigned int *voltage_table;
97 	int enable_time_us;
98 };
99 
100 static struct tps_info tps65910_regs[] = {
101 	{
102 		.name = "vrtc",
103 		.vin_name = "vcc7",
104 		.n_voltages = ARRAY_SIZE(VRTC_VSEL_table),
105 		.voltage_table = VRTC_VSEL_table,
106 		.enable_time_us = 2200,
107 	},
108 	{
109 		.name = "vio",
110 		.vin_name = "vccio",
111 		.n_voltages = ARRAY_SIZE(VIO_VSEL_table),
112 		.voltage_table = VIO_VSEL_table,
113 		.enable_time_us = 350,
114 	},
115 	{
116 		.name = "vdd1",
117 		.vin_name = "vcc1",
118 		.enable_time_us = 350,
119 	},
120 	{
121 		.name = "vdd2",
122 		.vin_name = "vcc2",
123 		.enable_time_us = 350,
124 	},
125 	{
126 		.name = "vdd3",
127 		.n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
128 		.voltage_table = VDD3_VSEL_table,
129 		.enable_time_us = 200,
130 	},
131 	{
132 		.name = "vdig1",
133 		.vin_name = "vcc6",
134 		.n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
135 		.voltage_table = VDIG1_VSEL_table,
136 		.enable_time_us = 100,
137 	},
138 	{
139 		.name = "vdig2",
140 		.vin_name = "vcc6",
141 		.n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
142 		.voltage_table = VDIG2_VSEL_table,
143 		.enable_time_us = 100,
144 	},
145 	{
146 		.name = "vpll",
147 		.vin_name = "vcc5",
148 		.n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
149 		.voltage_table = VPLL_VSEL_table,
150 		.enable_time_us = 100,
151 	},
152 	{
153 		.name = "vdac",
154 		.vin_name = "vcc5",
155 		.n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
156 		.voltage_table = VDAC_VSEL_table,
157 		.enable_time_us = 100,
158 	},
159 	{
160 		.name = "vaux1",
161 		.vin_name = "vcc4",
162 		.n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
163 		.voltage_table = VAUX1_VSEL_table,
164 		.enable_time_us = 100,
165 	},
166 	{
167 		.name = "vaux2",
168 		.vin_name = "vcc4",
169 		.n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
170 		.voltage_table = VAUX2_VSEL_table,
171 		.enable_time_us = 100,
172 	},
173 	{
174 		.name = "vaux33",
175 		.vin_name = "vcc3",
176 		.n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
177 		.voltage_table = VAUX33_VSEL_table,
178 		.enable_time_us = 100,
179 	},
180 	{
181 		.name = "vmmc",
182 		.vin_name = "vcc3",
183 		.n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
184 		.voltage_table = VMMC_VSEL_table,
185 		.enable_time_us = 100,
186 	},
187 	{
188 		.name = "vbb",
189 		.vin_name = "vcc7",
190 		.n_voltages = ARRAY_SIZE(VBB_VSEL_table),
191 		.voltage_table = VBB_VSEL_table,
192 	},
193 };
194 
195 static struct tps_info tps65911_regs[] = {
196 	{
197 		.name = "vrtc",
198 		.vin_name = "vcc7",
199 		.enable_time_us = 2200,
200 	},
201 	{
202 		.name = "vio",
203 		.vin_name = "vccio",
204 		.n_voltages = ARRAY_SIZE(VIO_VSEL_table),
205 		.voltage_table = VIO_VSEL_table,
206 		.enable_time_us = 350,
207 	},
208 	{
209 		.name = "vdd1",
210 		.vin_name = "vcc1",
211 		.n_voltages = 0x4C,
212 		.enable_time_us = 350,
213 	},
214 	{
215 		.name = "vdd2",
216 		.vin_name = "vcc2",
217 		.n_voltages = 0x4C,
218 		.enable_time_us = 350,
219 	},
220 	{
221 		.name = "vddctrl",
222 		.n_voltages = 0x44,
223 		.enable_time_us = 900,
224 	},
225 	{
226 		.name = "ldo1",
227 		.vin_name = "vcc6",
228 		.n_voltages = 0x33,
229 		.enable_time_us = 420,
230 	},
231 	{
232 		.name = "ldo2",
233 		.vin_name = "vcc6",
234 		.n_voltages = 0x33,
235 		.enable_time_us = 420,
236 	},
237 	{
238 		.name = "ldo3",
239 		.vin_name = "vcc5",
240 		.n_voltages = 0x1A,
241 		.enable_time_us = 230,
242 	},
243 	{
244 		.name = "ldo4",
245 		.vin_name = "vcc5",
246 		.n_voltages = 0x33,
247 		.enable_time_us = 230,
248 	},
249 	{
250 		.name = "ldo5",
251 		.vin_name = "vcc4",
252 		.n_voltages = 0x1A,
253 		.enable_time_us = 230,
254 	},
255 	{
256 		.name = "ldo6",
257 		.vin_name = "vcc3",
258 		.n_voltages = 0x1A,
259 		.enable_time_us = 230,
260 	},
261 	{
262 		.name = "ldo7",
263 		.vin_name = "vcc3",
264 		.n_voltages = 0x1A,
265 		.enable_time_us = 230,
266 	},
267 	{
268 		.name = "ldo8",
269 		.vin_name = "vcc3",
270 		.n_voltages = 0x1A,
271 		.enable_time_us = 230,
272 	},
273 };
274 
275 #define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
276 static unsigned int tps65910_ext_sleep_control[] = {
277 	0,
278 	EXT_CONTROL_REG_BITS(VIO,    1, 0),
279 	EXT_CONTROL_REG_BITS(VDD1,   1, 1),
280 	EXT_CONTROL_REG_BITS(VDD2,   1, 2),
281 	EXT_CONTROL_REG_BITS(VDD3,   1, 3),
282 	EXT_CONTROL_REG_BITS(VDIG1,  0, 1),
283 	EXT_CONTROL_REG_BITS(VDIG2,  0, 2),
284 	EXT_CONTROL_REG_BITS(VPLL,   0, 6),
285 	EXT_CONTROL_REG_BITS(VDAC,   0, 7),
286 	EXT_CONTROL_REG_BITS(VAUX1,  0, 3),
287 	EXT_CONTROL_REG_BITS(VAUX2,  0, 4),
288 	EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
289 	EXT_CONTROL_REG_BITS(VMMC,   0, 0),
290 };
291 
292 static unsigned int tps65911_ext_sleep_control[] = {
293 	0,
294 	EXT_CONTROL_REG_BITS(VIO,     1, 0),
295 	EXT_CONTROL_REG_BITS(VDD1,    1, 1),
296 	EXT_CONTROL_REG_BITS(VDD2,    1, 2),
297 	EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
298 	EXT_CONTROL_REG_BITS(LDO1,    0, 1),
299 	EXT_CONTROL_REG_BITS(LDO2,    0, 2),
300 	EXT_CONTROL_REG_BITS(LDO3,    0, 7),
301 	EXT_CONTROL_REG_BITS(LDO4,    0, 6),
302 	EXT_CONTROL_REG_BITS(LDO5,    0, 3),
303 	EXT_CONTROL_REG_BITS(LDO6,    0, 0),
304 	EXT_CONTROL_REG_BITS(LDO7,    0, 5),
305 	EXT_CONTROL_REG_BITS(LDO8,    0, 4),
306 };
307 
308 struct tps65910_reg {
309 	struct regulator_desc *desc;
310 	struct tps65910 *mfd;
311 	struct regulator_dev **rdev;
312 	struct tps_info **info;
313 	int num_regulators;
314 	int mode;
315 	int  (*get_ctrl_reg)(int);
316 	unsigned int *ext_sleep_control;
317 	unsigned int board_ext_control[TPS65910_NUM_REGS];
318 };
319 
320 static int tps65910_get_ctrl_register(int id)
321 {
322 	switch (id) {
323 	case TPS65910_REG_VRTC:
324 		return TPS65910_VRTC;
325 	case TPS65910_REG_VIO:
326 		return TPS65910_VIO;
327 	case TPS65910_REG_VDD1:
328 		return TPS65910_VDD1;
329 	case TPS65910_REG_VDD2:
330 		return TPS65910_VDD2;
331 	case TPS65910_REG_VDD3:
332 		return TPS65910_VDD3;
333 	case TPS65910_REG_VDIG1:
334 		return TPS65910_VDIG1;
335 	case TPS65910_REG_VDIG2:
336 		return TPS65910_VDIG2;
337 	case TPS65910_REG_VPLL:
338 		return TPS65910_VPLL;
339 	case TPS65910_REG_VDAC:
340 		return TPS65910_VDAC;
341 	case TPS65910_REG_VAUX1:
342 		return TPS65910_VAUX1;
343 	case TPS65910_REG_VAUX2:
344 		return TPS65910_VAUX2;
345 	case TPS65910_REG_VAUX33:
346 		return TPS65910_VAUX33;
347 	case TPS65910_REG_VMMC:
348 		return TPS65910_VMMC;
349 	case TPS65910_REG_VBB:
350 		return TPS65910_BBCH;
351 	default:
352 		return -EINVAL;
353 	}
354 }
355 
356 static int tps65911_get_ctrl_register(int id)
357 {
358 	switch (id) {
359 	case TPS65910_REG_VRTC:
360 		return TPS65910_VRTC;
361 	case TPS65910_REG_VIO:
362 		return TPS65910_VIO;
363 	case TPS65910_REG_VDD1:
364 		return TPS65910_VDD1;
365 	case TPS65910_REG_VDD2:
366 		return TPS65910_VDD2;
367 	case TPS65911_REG_VDDCTRL:
368 		return TPS65911_VDDCTRL;
369 	case TPS65911_REG_LDO1:
370 		return TPS65911_LDO1;
371 	case TPS65911_REG_LDO2:
372 		return TPS65911_LDO2;
373 	case TPS65911_REG_LDO3:
374 		return TPS65911_LDO3;
375 	case TPS65911_REG_LDO4:
376 		return TPS65911_LDO4;
377 	case TPS65911_REG_LDO5:
378 		return TPS65911_LDO5;
379 	case TPS65911_REG_LDO6:
380 		return TPS65911_LDO6;
381 	case TPS65911_REG_LDO7:
382 		return TPS65911_LDO7;
383 	case TPS65911_REG_LDO8:
384 		return TPS65911_LDO8;
385 	default:
386 		return -EINVAL;
387 	}
388 }
389 
390 static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode)
391 {
392 	struct tps65910_reg *pmic = rdev_get_drvdata(dev);
393 	struct regmap *regmap = rdev_get_regmap(dev);
394 	int reg, id = rdev_get_id(dev);
395 
396 	reg = pmic->get_ctrl_reg(id);
397 	if (reg < 0)
398 		return reg;
399 
400 	switch (mode) {
401 	case REGULATOR_MODE_NORMAL:
402 		return regmap_update_bits(regmap, reg,
403 					  LDO_ST_MODE_BIT | LDO_ST_ON_BIT,
404 					  LDO_ST_ON_BIT);
405 	case REGULATOR_MODE_IDLE:
406 		return regmap_set_bits(regmap, reg,
407 				       LDO_ST_ON_BIT | LDO_ST_MODE_BIT);
408 	case REGULATOR_MODE_STANDBY:
409 		return regmap_clear_bits(regmap, reg, LDO_ST_ON_BIT);
410 	}
411 
412 	return -EINVAL;
413 }
414 
415 static unsigned int tps65910_get_mode(struct regulator_dev *dev)
416 {
417 	struct tps65910_reg *pmic = rdev_get_drvdata(dev);
418 	struct regmap *regmap = rdev_get_regmap(dev);
419 	int ret, reg, value, id = rdev_get_id(dev);
420 
421 	reg = pmic->get_ctrl_reg(id);
422 	if (reg < 0)
423 		return reg;
424 
425 	ret = regmap_read(regmap, reg, &value);
426 	if (ret < 0)
427 		return ret;
428 
429 	if (!(value & LDO_ST_ON_BIT))
430 		return REGULATOR_MODE_STANDBY;
431 	else if (value & LDO_ST_MODE_BIT)
432 		return REGULATOR_MODE_IDLE;
433 	else
434 		return REGULATOR_MODE_NORMAL;
435 }
436 
437 static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev)
438 {
439 	struct regmap *regmap = rdev_get_regmap(dev);
440 	int ret, id = rdev_get_id(dev);
441 	int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0;
442 
443 	switch (id) {
444 	case TPS65910_REG_VDD1:
445 		ret = regmap_read(regmap, TPS65910_VDD1_OP, &opvsel);
446 		if (ret < 0)
447 			return ret;
448 		ret = regmap_read(regmap, TPS65910_VDD1, &mult);
449 		if (ret < 0)
450 			return ret;
451 		mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
452 		ret = regmap_read(regmap, TPS65910_VDD1_SR, &srvsel);
453 		if (ret < 0)
454 			return ret;
455 		sr = opvsel & VDD1_OP_CMD_MASK;
456 		opvsel &= VDD1_OP_SEL_MASK;
457 		srvsel &= VDD1_SR_SEL_MASK;
458 		vselmax = 75;
459 		break;
460 	case TPS65910_REG_VDD2:
461 		ret = regmap_read(regmap, TPS65910_VDD2_OP, &opvsel);
462 		if (ret < 0)
463 			return ret;
464 		ret = regmap_read(regmap, TPS65910_VDD2, &mult);
465 		if (ret < 0)
466 			return ret;
467 		mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
468 		ret = regmap_read(regmap, TPS65910_VDD2_SR, &srvsel);
469 		if (ret < 0)
470 			return ret;
471 		sr = opvsel & VDD2_OP_CMD_MASK;
472 		opvsel &= VDD2_OP_SEL_MASK;
473 		srvsel &= VDD2_SR_SEL_MASK;
474 		vselmax = 75;
475 		break;
476 	case TPS65911_REG_VDDCTRL:
477 		ret = regmap_read(regmap, TPS65911_VDDCTRL_OP, &opvsel);
478 		if (ret < 0)
479 			return ret;
480 		ret = regmap_read(regmap, TPS65911_VDDCTRL_SR, &srvsel);
481 		if (ret < 0)
482 			return ret;
483 		sr = opvsel & VDDCTRL_OP_CMD_MASK;
484 		opvsel &= VDDCTRL_OP_SEL_MASK;
485 		srvsel &= VDDCTRL_SR_SEL_MASK;
486 		vselmax = 64;
487 		break;
488 	}
489 
490 	/* multiplier 0 == 1 but 2,3 normal */
491 	if (!mult)
492 		mult = 1;
493 
494 	if (sr) {
495 		/* normalise to valid range */
496 		if (srvsel < 3)
497 			srvsel = 3;
498 		if (srvsel > vselmax)
499 			srvsel = vselmax;
500 		return srvsel - 3;
501 	} else {
502 
503 		/* normalise to valid range*/
504 		if (opvsel < 3)
505 			opvsel = 3;
506 		if (opvsel > vselmax)
507 			opvsel = vselmax;
508 		return opvsel - 3;
509 	}
510 	return -EINVAL;
511 }
512 
513 static int tps65910_get_voltage_sel(struct regulator_dev *dev)
514 {
515 	struct tps65910_reg *pmic = rdev_get_drvdata(dev);
516 	struct regmap *regmap = rdev_get_regmap(dev);
517 	int ret, reg, value, id = rdev_get_id(dev);
518 
519 	reg = pmic->get_ctrl_reg(id);
520 	if (reg < 0)
521 		return reg;
522 
523 	ret = regmap_read(regmap, reg, &value);
524 	if (ret < 0)
525 		return ret;
526 
527 	switch (id) {
528 	case TPS65910_REG_VIO:
529 	case TPS65910_REG_VDIG1:
530 	case TPS65910_REG_VDIG2:
531 	case TPS65910_REG_VPLL:
532 	case TPS65910_REG_VDAC:
533 	case TPS65910_REG_VAUX1:
534 	case TPS65910_REG_VAUX2:
535 	case TPS65910_REG_VAUX33:
536 	case TPS65910_REG_VMMC:
537 		value &= LDO_SEL_MASK;
538 		value >>= LDO_SEL_SHIFT;
539 		break;
540 	case TPS65910_REG_VBB:
541 		value &= BBCH_BBSEL_MASK;
542 		value >>= BBCH_BBSEL_SHIFT;
543 		break;
544 	default:
545 		return -EINVAL;
546 	}
547 
548 	return value;
549 }
550 
551 static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
552 {
553 	return dev->desc->volt_table[0];
554 }
555 
556 static int tps65911_get_voltage_sel(struct regulator_dev *dev)
557 {
558 	struct tps65910_reg *pmic = rdev_get_drvdata(dev);
559 	struct regmap *regmap = rdev_get_regmap(dev);
560 	int ret, id = rdev_get_id(dev);
561 	unsigned int value, reg;
562 
563 	reg = pmic->get_ctrl_reg(id);
564 
565 	ret = regmap_read(regmap, reg, &value);
566 	if (ret < 0)
567 		return ret;
568 
569 	switch (id) {
570 	case TPS65911_REG_LDO1:
571 	case TPS65911_REG_LDO2:
572 	case TPS65911_REG_LDO4:
573 		value &= LDO1_SEL_MASK;
574 		value >>= LDO_SEL_SHIFT;
575 		break;
576 	case TPS65911_REG_LDO3:
577 	case TPS65911_REG_LDO5:
578 	case TPS65911_REG_LDO6:
579 	case TPS65911_REG_LDO7:
580 	case TPS65911_REG_LDO8:
581 		value &= LDO3_SEL_MASK;
582 		value >>= LDO_SEL_SHIFT;
583 		break;
584 	case TPS65910_REG_VIO:
585 		value &= LDO_SEL_MASK;
586 		value >>= LDO_SEL_SHIFT;
587 		break;
588 	default:
589 		return -EINVAL;
590 	}
591 
592 	return value;
593 }
594 
595 static int tps65910_set_voltage_dcdc_sel(struct regulator_dev *dev,
596 					 unsigned selector)
597 {
598 	struct regmap *regmap = rdev_get_regmap(dev);
599 	int id = rdev_get_id(dev), vsel;
600 	int dcdc_mult = 0;
601 
602 	switch (id) {
603 	case TPS65910_REG_VDD1:
604 		dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
605 		if (dcdc_mult == 1)
606 			dcdc_mult--;
607 		vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
608 
609 		regmap_update_bits(regmap, TPS65910_VDD1, VDD1_VGAIN_SEL_MASK,
610 				   dcdc_mult << VDD1_VGAIN_SEL_SHIFT);
611 		regmap_write(regmap, TPS65910_VDD1_OP, vsel);
612 		break;
613 	case TPS65910_REG_VDD2:
614 		dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
615 		if (dcdc_mult == 1)
616 			dcdc_mult--;
617 		vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
618 
619 		regmap_update_bits(regmap, TPS65910_VDD2, VDD1_VGAIN_SEL_MASK,
620 				   dcdc_mult << VDD2_VGAIN_SEL_SHIFT);
621 		regmap_write(regmap, TPS65910_VDD2_OP, vsel);
622 		break;
623 	case TPS65911_REG_VDDCTRL:
624 		vsel = selector + 3;
625 		regmap_write(regmap, TPS65911_VDDCTRL_OP, vsel);
626 		break;
627 	}
628 
629 	return 0;
630 }
631 
632 static int tps65910_set_voltage_sel(struct regulator_dev *dev,
633 				    unsigned selector)
634 {
635 	struct tps65910_reg *pmic = rdev_get_drvdata(dev);
636 	struct regmap *regmap = rdev_get_regmap(dev);
637 	int reg, id = rdev_get_id(dev);
638 
639 	reg = pmic->get_ctrl_reg(id);
640 	if (reg < 0)
641 		return reg;
642 
643 	switch (id) {
644 	case TPS65910_REG_VIO:
645 	case TPS65910_REG_VDIG1:
646 	case TPS65910_REG_VDIG2:
647 	case TPS65910_REG_VPLL:
648 	case TPS65910_REG_VDAC:
649 	case TPS65910_REG_VAUX1:
650 	case TPS65910_REG_VAUX2:
651 	case TPS65910_REG_VAUX33:
652 	case TPS65910_REG_VMMC:
653 		return regmap_update_bits(regmap, reg, LDO_SEL_MASK,
654 					  selector << LDO_SEL_SHIFT);
655 	case TPS65910_REG_VBB:
656 		return regmap_update_bits(regmap, reg, BBCH_BBSEL_MASK,
657 					  selector << BBCH_BBSEL_SHIFT);
658 	}
659 
660 	return -EINVAL;
661 }
662 
663 static int tps65911_set_voltage_sel(struct regulator_dev *dev,
664 				    unsigned selector)
665 {
666 	struct tps65910_reg *pmic = rdev_get_drvdata(dev);
667 	struct regmap *regmap = rdev_get_regmap(dev);
668 	int reg, id = rdev_get_id(dev);
669 
670 	reg = pmic->get_ctrl_reg(id);
671 	if (reg < 0)
672 		return reg;
673 
674 	switch (id) {
675 	case TPS65911_REG_LDO1:
676 	case TPS65911_REG_LDO2:
677 	case TPS65911_REG_LDO4:
678 		return regmap_update_bits(regmap, reg, LDO1_SEL_MASK,
679 					  selector << LDO_SEL_SHIFT);
680 	case TPS65911_REG_LDO3:
681 	case TPS65911_REG_LDO5:
682 	case TPS65911_REG_LDO6:
683 	case TPS65911_REG_LDO7:
684 	case TPS65911_REG_LDO8:
685 		return regmap_update_bits(regmap, reg, LDO3_SEL_MASK,
686 					  selector << LDO_SEL_SHIFT);
687 	case TPS65910_REG_VIO:
688 		return regmap_update_bits(regmap, reg, LDO_SEL_MASK,
689 					  selector << LDO_SEL_SHIFT);
690 	case TPS65910_REG_VBB:
691 		return regmap_update_bits(regmap, reg, BBCH_BBSEL_MASK,
692 					  selector << BBCH_BBSEL_SHIFT);
693 	}
694 
695 	return -EINVAL;
696 }
697 
698 
699 static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
700 					unsigned selector)
701 {
702 	int volt, mult = 1, id = rdev_get_id(dev);
703 
704 	switch (id) {
705 	case TPS65910_REG_VDD1:
706 	case TPS65910_REG_VDD2:
707 		mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
708 		volt = VDD1_2_MIN_VOLT +
709 			(selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
710 		break;
711 	case TPS65911_REG_VDDCTRL:
712 		volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
713 		break;
714 	default:
715 		BUG();
716 		return -EINVAL;
717 	}
718 
719 	return  volt * 100 * mult;
720 }
721 
722 static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
723 {
724 	struct tps65910_reg *pmic = rdev_get_drvdata(dev);
725 	int step_mv = 0, id = rdev_get_id(dev);
726 
727 	switch (id) {
728 	case TPS65911_REG_LDO1:
729 	case TPS65911_REG_LDO2:
730 	case TPS65911_REG_LDO4:
731 		/* The first 5 values of the selector correspond to 1V */
732 		if (selector < 5)
733 			selector = 0;
734 		else
735 			selector -= 4;
736 
737 		step_mv = 50;
738 		break;
739 	case TPS65911_REG_LDO3:
740 	case TPS65911_REG_LDO5:
741 	case TPS65911_REG_LDO6:
742 	case TPS65911_REG_LDO7:
743 	case TPS65911_REG_LDO8:
744 		/* The first 3 values of the selector correspond to 1V */
745 		if (selector < 3)
746 			selector = 0;
747 		else
748 			selector -= 2;
749 
750 		step_mv = 100;
751 		break;
752 	case TPS65910_REG_VIO:
753 		return pmic->info[id]->voltage_table[selector];
754 	default:
755 		return -EINVAL;
756 	}
757 
758 	return (LDO_MIN_VOLT + selector * step_mv) * 1000;
759 }
760 
761 /* Regulator ops (except VRTC) */
762 static const struct regulator_ops tps65910_ops_dcdc = {
763 	.is_enabled		= regulator_is_enabled_regmap,
764 	.enable			= regulator_enable_regmap,
765 	.disable		= regulator_disable_regmap,
766 	.set_mode		= tps65910_set_mode,
767 	.get_mode		= tps65910_get_mode,
768 	.get_voltage_sel	= tps65910_get_voltage_dcdc_sel,
769 	.set_voltage_sel	= tps65910_set_voltage_dcdc_sel,
770 	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
771 	.list_voltage		= tps65910_list_voltage_dcdc,
772 	.map_voltage		= regulator_map_voltage_ascend,
773 };
774 
775 static const struct regulator_ops tps65910_ops_vdd3 = {
776 	.is_enabled		= regulator_is_enabled_regmap,
777 	.enable			= regulator_enable_regmap,
778 	.disable		= regulator_disable_regmap,
779 	.set_mode		= tps65910_set_mode,
780 	.get_mode		= tps65910_get_mode,
781 	.get_voltage		= tps65910_get_voltage_vdd3,
782 	.list_voltage		= regulator_list_voltage_table,
783 	.map_voltage		= regulator_map_voltage_ascend,
784 };
785 
786 static const struct regulator_ops tps65910_ops_vbb = {
787 	.is_enabled		= regulator_is_enabled_regmap,
788 	.enable			= regulator_enable_regmap,
789 	.disable		= regulator_disable_regmap,
790 	.set_mode		= tps65910_set_mode,
791 	.get_mode		= tps65910_get_mode,
792 	.get_voltage_sel	= tps65910_get_voltage_sel,
793 	.set_voltage_sel	= tps65910_set_voltage_sel,
794 	.list_voltage		= regulator_list_voltage_table,
795 	.map_voltage		= regulator_map_voltage_iterate,
796 };
797 
798 static const struct regulator_ops tps65910_ops = {
799 	.is_enabled		= regulator_is_enabled_regmap,
800 	.enable			= regulator_enable_regmap,
801 	.disable		= regulator_disable_regmap,
802 	.set_mode		= tps65910_set_mode,
803 	.get_mode		= tps65910_get_mode,
804 	.get_voltage_sel	= tps65910_get_voltage_sel,
805 	.set_voltage_sel	= tps65910_set_voltage_sel,
806 	.list_voltage		= regulator_list_voltage_table,
807 	.map_voltage		= regulator_map_voltage_ascend,
808 };
809 
810 static const struct regulator_ops tps65911_ops = {
811 	.is_enabled		= regulator_is_enabled_regmap,
812 	.enable			= regulator_enable_regmap,
813 	.disable		= regulator_disable_regmap,
814 	.set_mode		= tps65910_set_mode,
815 	.get_mode		= tps65910_get_mode,
816 	.get_voltage_sel	= tps65911_get_voltage_sel,
817 	.set_voltage_sel	= tps65911_set_voltage_sel,
818 	.list_voltage		= tps65911_list_voltage,
819 	.map_voltage		= regulator_map_voltage_ascend,
820 };
821 
822 static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
823 		int id, int ext_sleep_config)
824 {
825 	struct tps65910 *mfd = pmic->mfd;
826 	u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
827 	u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
828 	int ret;
829 
830 	/*
831 	 * Regulator can not be control from multiple external input EN1, EN2
832 	 * and EN3 together.
833 	 */
834 	if (ext_sleep_config & EXT_SLEEP_CONTROL) {
835 		int en_count;
836 		en_count = ((ext_sleep_config &
837 				TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
838 		en_count += ((ext_sleep_config &
839 				TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
840 		en_count += ((ext_sleep_config &
841 				TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
842 		en_count += ((ext_sleep_config &
843 				TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
844 		if (en_count > 1) {
845 			dev_err(mfd->dev,
846 				"External sleep control flag is not proper\n");
847 			return -EINVAL;
848 		}
849 	}
850 
851 	pmic->board_ext_control[id] = ext_sleep_config;
852 
853 	/* External EN1 control */
854 	if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
855 		ret = regmap_set_bits(mfd->regmap,
856 				TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
857 	else
858 		ret = regmap_clear_bits(mfd->regmap,
859 				TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
860 	if (ret < 0) {
861 		dev_err(mfd->dev,
862 			"Error in configuring external control EN1\n");
863 		return ret;
864 	}
865 
866 	/* External EN2 control */
867 	if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
868 		ret = regmap_set_bits(mfd->regmap,
869 				TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
870 	else
871 		ret = regmap_clear_bits(mfd->regmap,
872 				TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
873 	if (ret < 0) {
874 		dev_err(mfd->dev,
875 			"Error in configuring external control EN2\n");
876 		return ret;
877 	}
878 
879 	/* External EN3 control for TPS65910 LDO only */
880 	if ((tps65910_chip_id(mfd) == TPS65910) &&
881 			(id >= TPS65910_REG_VDIG1)) {
882 		if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
883 			ret = regmap_set_bits(mfd->regmap,
884 				TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
885 		else
886 			ret = regmap_clear_bits(mfd->regmap,
887 				TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
888 		if (ret < 0) {
889 			dev_err(mfd->dev,
890 				"Error in configuring external control EN3\n");
891 			return ret;
892 		}
893 	}
894 
895 	/* Return if no external control is selected */
896 	if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
897 		/* Clear all sleep controls */
898 		ret = regmap_clear_bits(mfd->regmap,
899 			TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
900 		if (!ret)
901 			ret = regmap_clear_bits(mfd->regmap,
902 				TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
903 		if (ret < 0)
904 			dev_err(mfd->dev,
905 				"Error in configuring SLEEP register\n");
906 		return ret;
907 	}
908 
909 	/*
910 	 * For regulator that has separate operational and sleep register make
911 	 * sure that operational is used and clear sleep register to turn
912 	 * regulator off when external control is inactive
913 	 */
914 	if ((id == TPS65910_REG_VDD1) ||
915 		(id == TPS65910_REG_VDD2) ||
916 			((id == TPS65911_REG_VDDCTRL) &&
917 				(tps65910_chip_id(mfd) == TPS65911))) {
918 		int op_reg_add = pmic->get_ctrl_reg(id) + 1;
919 		int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
920 		int opvsel, srvsel;
921 
922 		ret = regmap_read(mfd->regmap, op_reg_add, &opvsel);
923 		if (ret < 0)
924 			return ret;
925 		ret = regmap_read(mfd->regmap, sr_reg_add, &srvsel);
926 		if (ret < 0)
927 			return ret;
928 
929 		if (opvsel & VDD1_OP_CMD_MASK) {
930 			u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
931 
932 			ret = regmap_write(mfd->regmap, op_reg_add, reg_val);
933 			if (ret < 0) {
934 				dev_err(mfd->dev,
935 					"Error in configuring op register\n");
936 				return ret;
937 			}
938 		}
939 		ret = regmap_write(mfd->regmap, sr_reg_add, 0);
940 		if (ret < 0) {
941 			dev_err(mfd->dev, "Error in setting sr register\n");
942 			return ret;
943 		}
944 	}
945 
946 	ret = regmap_clear_bits(mfd->regmap,
947 			TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
948 	if (!ret) {
949 		if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
950 			ret = regmap_set_bits(mfd->regmap,
951 				TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
952 		else
953 			ret = regmap_clear_bits(mfd->regmap,
954 				TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
955 	}
956 	if (ret < 0)
957 		dev_err(mfd->dev,
958 			"Error in configuring SLEEP register\n");
959 
960 	return ret;
961 }
962 
963 #ifdef CONFIG_OF
964 
965 static struct of_regulator_match tps65910_matches[] = {
966 	{ .name = "vrtc",	.driver_data = (void *) &tps65910_regs[0] },
967 	{ .name = "vio",	.driver_data = (void *) &tps65910_regs[1] },
968 	{ .name = "vdd1",	.driver_data = (void *) &tps65910_regs[2] },
969 	{ .name = "vdd2",	.driver_data = (void *) &tps65910_regs[3] },
970 	{ .name = "vdd3",	.driver_data = (void *) &tps65910_regs[4] },
971 	{ .name = "vdig1",	.driver_data = (void *) &tps65910_regs[5] },
972 	{ .name = "vdig2",	.driver_data = (void *) &tps65910_regs[6] },
973 	{ .name = "vpll",	.driver_data = (void *) &tps65910_regs[7] },
974 	{ .name = "vdac",	.driver_data = (void *) &tps65910_regs[8] },
975 	{ .name = "vaux1",	.driver_data = (void *) &tps65910_regs[9] },
976 	{ .name = "vaux2",	.driver_data = (void *) &tps65910_regs[10] },
977 	{ .name = "vaux33",	.driver_data = (void *) &tps65910_regs[11] },
978 	{ .name = "vmmc",	.driver_data = (void *) &tps65910_regs[12] },
979 	{ .name = "vbb",	.driver_data = (void *) &tps65910_regs[13] },
980 };
981 
982 static struct of_regulator_match tps65911_matches[] = {
983 	{ .name = "vrtc",	.driver_data = (void *) &tps65911_regs[0] },
984 	{ .name = "vio",	.driver_data = (void *) &tps65911_regs[1] },
985 	{ .name = "vdd1",	.driver_data = (void *) &tps65911_regs[2] },
986 	{ .name = "vdd2",	.driver_data = (void *) &tps65911_regs[3] },
987 	{ .name = "vddctrl",	.driver_data = (void *) &tps65911_regs[4] },
988 	{ .name = "ldo1",	.driver_data = (void *) &tps65911_regs[5] },
989 	{ .name = "ldo2",	.driver_data = (void *) &tps65911_regs[6] },
990 	{ .name = "ldo3",	.driver_data = (void *) &tps65911_regs[7] },
991 	{ .name = "ldo4",	.driver_data = (void *) &tps65911_regs[8] },
992 	{ .name = "ldo5",	.driver_data = (void *) &tps65911_regs[9] },
993 	{ .name = "ldo6",	.driver_data = (void *) &tps65911_regs[10] },
994 	{ .name = "ldo7",	.driver_data = (void *) &tps65911_regs[11] },
995 	{ .name = "ldo8",	.driver_data = (void *) &tps65911_regs[12] },
996 };
997 
998 static struct tps65910_board *tps65910_parse_dt_reg_data(
999 		struct platform_device *pdev,
1000 		struct of_regulator_match **tps65910_reg_matches)
1001 {
1002 	struct tps65910_board *pmic_plat_data;
1003 	struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
1004 	struct device_node *np, *regulators;
1005 	struct of_regulator_match *matches;
1006 	unsigned int prop;
1007 	int idx = 0, ret, count;
1008 
1009 	pmic_plat_data = devm_kzalloc(&pdev->dev, sizeof(*pmic_plat_data),
1010 					GFP_KERNEL);
1011 	if (!pmic_plat_data)
1012 		return NULL;
1013 
1014 	np = pdev->dev.parent->of_node;
1015 	regulators = of_get_child_by_name(np, "regulators");
1016 	if (!regulators) {
1017 		dev_err(&pdev->dev, "regulator node not found\n");
1018 		return NULL;
1019 	}
1020 
1021 	switch (tps65910_chip_id(tps65910)) {
1022 	case TPS65910:
1023 		count = ARRAY_SIZE(tps65910_matches);
1024 		matches = tps65910_matches;
1025 		break;
1026 	case TPS65911:
1027 		count = ARRAY_SIZE(tps65911_matches);
1028 		matches = tps65911_matches;
1029 		break;
1030 	default:
1031 		of_node_put(regulators);
1032 		dev_err(&pdev->dev, "Invalid tps chip version\n");
1033 		return NULL;
1034 	}
1035 
1036 	ret = of_regulator_match(&pdev->dev, regulators, matches, count);
1037 	of_node_put(regulators);
1038 	if (ret < 0) {
1039 		dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
1040 			ret);
1041 		return NULL;
1042 	}
1043 
1044 	*tps65910_reg_matches = matches;
1045 
1046 	for (idx = 0; idx < count; idx++) {
1047 		if (!matches[idx].of_node)
1048 			continue;
1049 
1050 		pmic_plat_data->tps65910_pmic_init_data[idx] =
1051 							matches[idx].init_data;
1052 
1053 		ret = of_property_read_u32(matches[idx].of_node,
1054 				"ti,regulator-ext-sleep-control", &prop);
1055 		if (!ret)
1056 			pmic_plat_data->regulator_ext_sleep_control[idx] = prop;
1057 
1058 	}
1059 
1060 	return pmic_plat_data;
1061 }
1062 #else
1063 static inline struct tps65910_board *tps65910_parse_dt_reg_data(
1064 			struct platform_device *pdev,
1065 			struct of_regulator_match **tps65910_reg_matches)
1066 {
1067 	*tps65910_reg_matches = NULL;
1068 	return NULL;
1069 }
1070 #endif
1071 
1072 static int tps65910_probe(struct platform_device *pdev)
1073 {
1074 	struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
1075 	struct regulator_config config = { };
1076 	struct tps_info *info;
1077 	struct regulator_dev *rdev;
1078 	struct tps65910_reg *pmic;
1079 	struct tps65910_board *pmic_plat_data;
1080 	struct of_regulator_match *tps65910_reg_matches = NULL;
1081 	int i, err;
1082 
1083 	pmic_plat_data = dev_get_platdata(tps65910->dev);
1084 	if (!pmic_plat_data && tps65910->dev->of_node)
1085 		pmic_plat_data = tps65910_parse_dt_reg_data(pdev,
1086 						&tps65910_reg_matches);
1087 
1088 	if (!pmic_plat_data) {
1089 		dev_err(&pdev->dev, "Platform data not found\n");
1090 		return -EINVAL;
1091 	}
1092 
1093 	pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
1094 	if (!pmic)
1095 		return -ENOMEM;
1096 
1097 	pmic->mfd = tps65910;
1098 	platform_set_drvdata(pdev, pmic);
1099 
1100 	/* Give control of all register to control port */
1101 	err = regmap_set_bits(pmic->mfd->regmap, TPS65910_DEVCTRL,
1102 				DEVCTRL_SR_CTL_I2C_SEL_MASK);
1103 	if (err < 0)
1104 		return err;
1105 
1106 	switch (tps65910_chip_id(tps65910)) {
1107 	case TPS65910:
1108 		BUILD_BUG_ON(TPS65910_NUM_REGS < ARRAY_SIZE(tps65910_regs));
1109 		pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
1110 		pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
1111 		pmic->ext_sleep_control = tps65910_ext_sleep_control;
1112 		info = tps65910_regs;
1113 		/* Work around silicon erratum SWCZ010: output programmed
1114 		 * voltage level can go higher than expected or crash
1115 		 * Workaround: use no synchronization of DCDC clocks
1116 		 */
1117 		regmap_clear_bits(pmic->mfd->regmap, TPS65910_DCDCCTRL,
1118 					DCDCCTRL_DCDCCKSYNC_MASK);
1119 		break;
1120 	case TPS65911:
1121 		BUILD_BUG_ON(TPS65910_NUM_REGS < ARRAY_SIZE(tps65911_regs));
1122 		pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
1123 		pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
1124 		pmic->ext_sleep_control = tps65911_ext_sleep_control;
1125 		info = tps65911_regs;
1126 		break;
1127 	default:
1128 		dev_err(&pdev->dev, "Invalid tps chip version\n");
1129 		return -ENODEV;
1130 	}
1131 
1132 	pmic->desc = devm_kcalloc(&pdev->dev,
1133 				  pmic->num_regulators,
1134 				  sizeof(struct regulator_desc),
1135 				  GFP_KERNEL);
1136 	if (!pmic->desc)
1137 		return -ENOMEM;
1138 
1139 	pmic->info = devm_kcalloc(&pdev->dev,
1140 				  pmic->num_regulators,
1141 				  sizeof(struct tps_info *),
1142 				  GFP_KERNEL);
1143 	if (!pmic->info)
1144 		return -ENOMEM;
1145 
1146 	pmic->rdev = devm_kcalloc(&pdev->dev,
1147 				  pmic->num_regulators,
1148 				  sizeof(struct regulator_dev *),
1149 				  GFP_KERNEL);
1150 	if (!pmic->rdev)
1151 		return -ENOMEM;
1152 
1153 	for (i = 0; i < pmic->num_regulators; i++, info++) {
1154 		/* Register the regulators */
1155 		pmic->info[i] = info;
1156 
1157 		pmic->desc[i].name = info->name;
1158 		pmic->desc[i].supply_name = info->vin_name;
1159 		pmic->desc[i].id = i;
1160 		pmic->desc[i].n_voltages = info->n_voltages;
1161 		pmic->desc[i].enable_time = info->enable_time_us;
1162 
1163 		if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
1164 			pmic->desc[i].ops = &tps65910_ops_dcdc;
1165 			pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE *
1166 							VDD1_2_NUM_VOLT_COARSE;
1167 			pmic->desc[i].ramp_delay = 12500;
1168 		} else if (i == TPS65910_REG_VDD3) {
1169 			if (tps65910_chip_id(tps65910) == TPS65910) {
1170 				pmic->desc[i].ops = &tps65910_ops_vdd3;
1171 				pmic->desc[i].volt_table = info->voltage_table;
1172 			} else {
1173 				pmic->desc[i].ops = &tps65910_ops_dcdc;
1174 				pmic->desc[i].ramp_delay = 5000;
1175 			}
1176 		} else if (i == TPS65910_REG_VBB &&
1177 				tps65910_chip_id(tps65910) == TPS65910) {
1178 			pmic->desc[i].ops = &tps65910_ops_vbb;
1179 			pmic->desc[i].volt_table = info->voltage_table;
1180 		} else {
1181 			if (tps65910_chip_id(tps65910) == TPS65910) {
1182 				pmic->desc[i].ops = &tps65910_ops;
1183 				pmic->desc[i].volt_table = info->voltage_table;
1184 			} else {
1185 				pmic->desc[i].ops = &tps65911_ops;
1186 			}
1187 		}
1188 
1189 		err = tps65910_set_ext_sleep_config(pmic, i,
1190 				pmic_plat_data->regulator_ext_sleep_control[i]);
1191 		/*
1192 		 * Failing on regulator for configuring externally control
1193 		 * is not a serious issue, just throw warning.
1194 		 */
1195 		if (err < 0)
1196 			dev_warn(tps65910->dev,
1197 				"Failed to initialise ext control config\n");
1198 
1199 		pmic->desc[i].type = REGULATOR_VOLTAGE;
1200 		pmic->desc[i].owner = THIS_MODULE;
1201 		pmic->desc[i].enable_reg = pmic->get_ctrl_reg(i);
1202 		pmic->desc[i].enable_mask = TPS65910_SUPPLY_STATE_ENABLED;
1203 
1204 		config.dev = tps65910->dev;
1205 		config.init_data = pmic_plat_data->tps65910_pmic_init_data[i];
1206 		config.driver_data = pmic;
1207 		config.regmap = tps65910->regmap;
1208 
1209 		if (tps65910_reg_matches)
1210 			config.of_node = tps65910_reg_matches[i].of_node;
1211 
1212 		rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i],
1213 					       &config);
1214 		if (IS_ERR(rdev)) {
1215 			dev_err(tps65910->dev,
1216 				"failed to register %s regulator\n",
1217 				pdev->name);
1218 			return PTR_ERR(rdev);
1219 		}
1220 
1221 		/* Save regulator for cleanup */
1222 		pmic->rdev[i] = rdev;
1223 	}
1224 	return 0;
1225 }
1226 
1227 static void tps65910_shutdown(struct platform_device *pdev)
1228 {
1229 	struct tps65910_reg *pmic = platform_get_drvdata(pdev);
1230 	int i;
1231 
1232 	/*
1233 	 * Before bootloader jumps to kernel, it makes sure that required
1234 	 * external control signals are in desired state so that given rails
1235 	 * can be configure accordingly.
1236 	 * If rails are configured to be controlled from external control
1237 	 * then before shutting down/rebooting the system, the external
1238 	 * control configuration need to be remove from the rails so that
1239 	 * its output will be available as per register programming even
1240 	 * if external controls are removed. This is require when the POR
1241 	 * value of the control signals are not in active state and before
1242 	 * bootloader initializes it, the system requires the rail output
1243 	 * to be active for booting.
1244 	 */
1245 	for (i = 0; i < pmic->num_regulators; i++) {
1246 		int err;
1247 		if (!pmic->rdev[i])
1248 			continue;
1249 
1250 		err = tps65910_set_ext_sleep_config(pmic, i, 0);
1251 		if (err < 0)
1252 			dev_err(&pdev->dev,
1253 				"Error in clearing external control\n");
1254 	}
1255 }
1256 
1257 static struct platform_driver tps65910_driver = {
1258 	.driver = {
1259 		.name = "tps65910-pmic",
1260 	},
1261 	.probe = tps65910_probe,
1262 	.shutdown = tps65910_shutdown,
1263 };
1264 
1265 static int __init tps65910_init(void)
1266 {
1267 	return platform_driver_register(&tps65910_driver);
1268 }
1269 subsys_initcall(tps65910_init);
1270 
1271 static void __exit tps65910_cleanup(void)
1272 {
1273 	platform_driver_unregister(&tps65910_driver);
1274 }
1275 module_exit(tps65910_cleanup);
1276 
1277 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1278 MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver");
1279 MODULE_LICENSE("GPL v2");
1280 MODULE_ALIAS("platform:tps65910-pmic");
1281