2 * tps65910.c -- TI tps65910
4 * Copyright 2010 Texas Instruments Inc.
6 * Author: Graeme Gregory <gg@slimlogic.co.uk>
7 * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
16 #include <linux/kernel.h>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/err.h>
20 #include <linux/platform_device.h>
21 #include <linux/regulator/driver.h>
22 #include <linux/regulator/machine.h>
23 #include <linux/delay.h>
24 #include <linux/slab.h>
25 #include <linux/gpio.h>
26 #include <linux/mfd/tps65910.h>
28 #define TPS65910_SUPPLY_STATE_ENABLED 0x1
29 #define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 | \
30 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 | \
31 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 | \
32 TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
34 /* supported VIO voltages in milivolts */
35 static const u16 VIO_VSEL_table[] = {
36 1500, 1800, 2500, 3300,
39 /* VSEL tables for TPS65910 specific LDOs and dcdc's */
41 /* supported VDD3 voltages in milivolts */
42 static const u16 VDD3_VSEL_table[] = {
46 /* supported VDIG1 voltages in milivolts */
47 static const u16 VDIG1_VSEL_table[] = {
48 1200, 1500, 1800, 2700,
51 /* supported VDIG2 voltages in milivolts */
52 static const u16 VDIG2_VSEL_table[] = {
53 1000, 1100, 1200, 1800,
56 /* supported VPLL voltages in milivolts */
57 static const u16 VPLL_VSEL_table[] = {
58 1000, 1100, 1800, 2500,
61 /* supported VDAC voltages in milivolts */
62 static const u16 VDAC_VSEL_table[] = {
63 1800, 2600, 2800, 2850,
66 /* supported VAUX1 voltages in milivolts */
67 static const u16 VAUX1_VSEL_table[] = {
68 1800, 2500, 2800, 2850,
71 /* supported VAUX2 voltages in milivolts */
72 static const u16 VAUX2_VSEL_table[] = {
73 1800, 2800, 2900, 3300,
76 /* supported VAUX33 voltages in milivolts */
77 static const u16 VAUX33_VSEL_table[] = {
78 1800, 2000, 2800, 3300,
81 /* supported VMMC voltages in milivolts */
82 static const u16 VMMC_VSEL_table[] = {
83 1800, 2800, 3000, 3300,
91 const u16 *voltage_table;
95 static struct tps_info tps65910_regs[] = {
98 .enable_time_us = 2200,
104 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
105 .voltage_table = VIO_VSEL_table,
106 .enable_time_us = 350,
112 .enable_time_us = 350,
118 .enable_time_us = 350,
124 .n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
125 .voltage_table = VDD3_VSEL_table,
126 .enable_time_us = 200,
132 .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
133 .voltage_table = VDIG1_VSEL_table,
134 .enable_time_us = 100,
140 .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
141 .voltage_table = VDIG2_VSEL_table,
142 .enable_time_us = 100,
148 .n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
149 .voltage_table = VPLL_VSEL_table,
150 .enable_time_us = 100,
156 .n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
157 .voltage_table = VDAC_VSEL_table,
158 .enable_time_us = 100,
164 .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
165 .voltage_table = VAUX1_VSEL_table,
166 .enable_time_us = 100,
172 .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
173 .voltage_table = VAUX2_VSEL_table,
174 .enable_time_us = 100,
180 .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
181 .voltage_table = VAUX33_VSEL_table,
182 .enable_time_us = 100,
188 .n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
189 .voltage_table = VMMC_VSEL_table,
190 .enable_time_us = 100,
194 static struct tps_info tps65911_regs[] = {
197 .enable_time_us = 2200,
203 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
204 .voltage_table = VIO_VSEL_table,
205 .enable_time_us = 350,
212 .enable_time_us = 350,
219 .enable_time_us = 350,
226 .enable_time_us = 900,
233 .enable_time_us = 420,
240 .enable_time_us = 420,
247 .enable_time_us = 230,
254 .enable_time_us = 230,
261 .enable_time_us = 230,
268 .enable_time_us = 230,
275 .enable_time_us = 230,
282 .enable_time_us = 230,
286 #define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
287 static unsigned int tps65910_ext_sleep_control[] = {
289 EXT_CONTROL_REG_BITS(VIO, 1, 0),
290 EXT_CONTROL_REG_BITS(VDD1, 1, 1),
291 EXT_CONTROL_REG_BITS(VDD2, 1, 2),
292 EXT_CONTROL_REG_BITS(VDD3, 1, 3),
293 EXT_CONTROL_REG_BITS(VDIG1, 0, 1),
294 EXT_CONTROL_REG_BITS(VDIG2, 0, 2),
295 EXT_CONTROL_REG_BITS(VPLL, 0, 6),
296 EXT_CONTROL_REG_BITS(VDAC, 0, 7),
297 EXT_CONTROL_REG_BITS(VAUX1, 0, 3),
298 EXT_CONTROL_REG_BITS(VAUX2, 0, 4),
299 EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
300 EXT_CONTROL_REG_BITS(VMMC, 0, 0),
303 static unsigned int tps65911_ext_sleep_control[] = {
305 EXT_CONTROL_REG_BITS(VIO, 1, 0),
306 EXT_CONTROL_REG_BITS(VDD1, 1, 1),
307 EXT_CONTROL_REG_BITS(VDD2, 1, 2),
308 EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
309 EXT_CONTROL_REG_BITS(LDO1, 0, 1),
310 EXT_CONTROL_REG_BITS(LDO2, 0, 2),
311 EXT_CONTROL_REG_BITS(LDO3, 0, 7),
312 EXT_CONTROL_REG_BITS(LDO4, 0, 6),
313 EXT_CONTROL_REG_BITS(LDO5, 0, 3),
314 EXT_CONTROL_REG_BITS(LDO6, 0, 0),
315 EXT_CONTROL_REG_BITS(LDO7, 0, 5),
316 EXT_CONTROL_REG_BITS(LDO8, 0, 4),
319 struct tps65910_reg {
320 struct regulator_desc *desc;
321 struct tps65910 *mfd;
322 struct regulator_dev **rdev;
323 struct tps_info **info;
327 int (*get_ctrl_reg)(int);
328 unsigned int *ext_sleep_control;
329 unsigned int board_ext_control[TPS65910_NUM_REGS];
332 static inline int tps65910_read(struct tps65910_reg *pmic, u8 reg)
337 err = pmic->mfd->read(pmic->mfd, reg, 1, &val);
344 static inline int tps65910_write(struct tps65910_reg *pmic, u8 reg, u8 val)
346 return pmic->mfd->write(pmic->mfd, reg, 1, &val);
349 static int tps65910_modify_bits(struct tps65910_reg *pmic, u8 reg,
350 u8 set_mask, u8 clear_mask)
354 mutex_lock(&pmic->mutex);
356 data = tps65910_read(pmic, reg);
358 dev_err(pmic->mfd->dev, "Read from reg 0x%x failed\n", reg);
365 err = tps65910_write(pmic, reg, data);
367 dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
370 mutex_unlock(&pmic->mutex);
374 static int tps65910_reg_read(struct tps65910_reg *pmic, u8 reg)
378 mutex_lock(&pmic->mutex);
380 data = tps65910_read(pmic, reg);
382 dev_err(pmic->mfd->dev, "Read from reg 0x%x failed\n", reg);
384 mutex_unlock(&pmic->mutex);
388 static int tps65910_reg_write(struct tps65910_reg *pmic, u8 reg, u8 val)
392 mutex_lock(&pmic->mutex);
394 err = tps65910_write(pmic, reg, val);
396 dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
398 mutex_unlock(&pmic->mutex);
402 static int tps65910_get_ctrl_register(int id)
405 case TPS65910_REG_VRTC:
406 return TPS65910_VRTC;
407 case TPS65910_REG_VIO:
409 case TPS65910_REG_VDD1:
410 return TPS65910_VDD1;
411 case TPS65910_REG_VDD2:
412 return TPS65910_VDD2;
413 case TPS65910_REG_VDD3:
414 return TPS65910_VDD3;
415 case TPS65910_REG_VDIG1:
416 return TPS65910_VDIG1;
417 case TPS65910_REG_VDIG2:
418 return TPS65910_VDIG2;
419 case TPS65910_REG_VPLL:
420 return TPS65910_VPLL;
421 case TPS65910_REG_VDAC:
422 return TPS65910_VDAC;
423 case TPS65910_REG_VAUX1:
424 return TPS65910_VAUX1;
425 case TPS65910_REG_VAUX2:
426 return TPS65910_VAUX2;
427 case TPS65910_REG_VAUX33:
428 return TPS65910_VAUX33;
429 case TPS65910_REG_VMMC:
430 return TPS65910_VMMC;
436 static int tps65911_get_ctrl_register(int id)
439 case TPS65910_REG_VRTC:
440 return TPS65910_VRTC;
441 case TPS65910_REG_VIO:
443 case TPS65910_REG_VDD1:
444 return TPS65910_VDD1;
445 case TPS65910_REG_VDD2:
446 return TPS65910_VDD2;
447 case TPS65911_REG_VDDCTRL:
448 return TPS65911_VDDCTRL;
449 case TPS65911_REG_LDO1:
450 return TPS65911_LDO1;
451 case TPS65911_REG_LDO2:
452 return TPS65911_LDO2;
453 case TPS65911_REG_LDO3:
454 return TPS65911_LDO3;
455 case TPS65911_REG_LDO4:
456 return TPS65911_LDO4;
457 case TPS65911_REG_LDO5:
458 return TPS65911_LDO5;
459 case TPS65911_REG_LDO6:
460 return TPS65911_LDO6;
461 case TPS65911_REG_LDO7:
462 return TPS65911_LDO7;
463 case TPS65911_REG_LDO8:
464 return TPS65911_LDO8;
470 static int tps65910_is_enabled(struct regulator_dev *dev)
472 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
473 int reg, value, id = rdev_get_id(dev);
475 reg = pmic->get_ctrl_reg(id);
479 value = tps65910_reg_read(pmic, reg);
483 return value & TPS65910_SUPPLY_STATE_ENABLED;
486 static int tps65910_enable(struct regulator_dev *dev)
488 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
489 struct tps65910 *mfd = pmic->mfd;
490 int reg, id = rdev_get_id(dev);
492 reg = pmic->get_ctrl_reg(id);
496 return tps65910_set_bits(mfd, reg, TPS65910_SUPPLY_STATE_ENABLED);
499 static int tps65910_disable(struct regulator_dev *dev)
501 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
502 struct tps65910 *mfd = pmic->mfd;
503 int reg, id = rdev_get_id(dev);
505 reg = pmic->get_ctrl_reg(id);
509 return tps65910_clear_bits(mfd, reg, TPS65910_SUPPLY_STATE_ENABLED);
512 static int tps65910_enable_time(struct regulator_dev *dev)
514 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
515 int id = rdev_get_id(dev);
516 return pmic->info[id]->enable_time_us;
519 static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode)
521 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
522 struct tps65910 *mfd = pmic->mfd;
523 int reg, value, id = rdev_get_id(dev);
525 reg = pmic->get_ctrl_reg(id);
530 case REGULATOR_MODE_NORMAL:
531 return tps65910_modify_bits(pmic, reg, LDO_ST_ON_BIT,
533 case REGULATOR_MODE_IDLE:
534 value = LDO_ST_ON_BIT | LDO_ST_MODE_BIT;
535 return tps65910_set_bits(mfd, reg, value);
536 case REGULATOR_MODE_STANDBY:
537 return tps65910_clear_bits(mfd, reg, LDO_ST_ON_BIT);
543 static unsigned int tps65910_get_mode(struct regulator_dev *dev)
545 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
546 int reg, value, id = rdev_get_id(dev);
548 reg = pmic->get_ctrl_reg(id);
552 value = tps65910_reg_read(pmic, reg);
556 if (!(value & LDO_ST_ON_BIT))
557 return REGULATOR_MODE_STANDBY;
558 else if (value & LDO_ST_MODE_BIT)
559 return REGULATOR_MODE_IDLE;
561 return REGULATOR_MODE_NORMAL;
564 static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev)
566 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
567 int id = rdev_get_id(dev);
568 int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0;
571 case TPS65910_REG_VDD1:
572 opvsel = tps65910_reg_read(pmic, TPS65910_VDD1_OP);
573 mult = tps65910_reg_read(pmic, TPS65910_VDD1);
574 mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
575 srvsel = tps65910_reg_read(pmic, TPS65910_VDD1_SR);
576 sr = opvsel & VDD1_OP_CMD_MASK;
577 opvsel &= VDD1_OP_SEL_MASK;
578 srvsel &= VDD1_SR_SEL_MASK;
581 case TPS65910_REG_VDD2:
582 opvsel = tps65910_reg_read(pmic, TPS65910_VDD2_OP);
583 mult = tps65910_reg_read(pmic, TPS65910_VDD2);
584 mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
585 srvsel = tps65910_reg_read(pmic, TPS65910_VDD2_SR);
586 sr = opvsel & VDD2_OP_CMD_MASK;
587 opvsel &= VDD2_OP_SEL_MASK;
588 srvsel &= VDD2_SR_SEL_MASK;
591 case TPS65911_REG_VDDCTRL:
592 opvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_OP);
593 srvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_SR);
594 sr = opvsel & VDDCTRL_OP_CMD_MASK;
595 opvsel &= VDDCTRL_OP_SEL_MASK;
596 srvsel &= VDDCTRL_SR_SEL_MASK;
601 /* multiplier 0 == 1 but 2,3 normal */
606 /* normalise to valid range */
609 if (srvsel > vselmax)
614 /* normalise to valid range*/
617 if (opvsel > vselmax)
624 static int tps65910_get_voltage(struct regulator_dev *dev)
626 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
627 int reg, value, id = rdev_get_id(dev), voltage = 0;
629 reg = pmic->get_ctrl_reg(id);
633 value = tps65910_reg_read(pmic, reg);
638 case TPS65910_REG_VIO:
639 case TPS65910_REG_VDIG1:
640 case TPS65910_REG_VDIG2:
641 case TPS65910_REG_VPLL:
642 case TPS65910_REG_VDAC:
643 case TPS65910_REG_VAUX1:
644 case TPS65910_REG_VAUX2:
645 case TPS65910_REG_VAUX33:
646 case TPS65910_REG_VMMC:
647 value &= LDO_SEL_MASK;
648 value >>= LDO_SEL_SHIFT;
654 voltage = pmic->info[id]->voltage_table[value] * 1000;
659 static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
661 return 5 * 1000 * 1000;
664 static int tps65911_get_voltage(struct regulator_dev *dev)
666 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
667 int step_mv, id = rdev_get_id(dev);
670 reg = pmic->get_ctrl_reg(id);
672 value = tps65910_reg_read(pmic, reg);
675 case TPS65911_REG_LDO1:
676 case TPS65911_REG_LDO2:
677 case TPS65911_REG_LDO4:
678 value &= LDO1_SEL_MASK;
679 value >>= LDO_SEL_SHIFT;
680 /* The first 5 values of the selector correspond to 1V */
688 case TPS65911_REG_LDO3:
689 case TPS65911_REG_LDO5:
690 case TPS65911_REG_LDO6:
691 case TPS65911_REG_LDO7:
692 case TPS65911_REG_LDO8:
693 value &= LDO3_SEL_MASK;
694 value >>= LDO_SEL_SHIFT;
695 /* The first 3 values of the selector correspond to 1V */
703 case TPS65910_REG_VIO:
704 value &= LDO_SEL_MASK;
705 value >>= LDO_SEL_SHIFT;
706 return pmic->info[id]->voltage_table[value] * 1000;
711 return (LDO_MIN_VOLT + value * step_mv) * 1000;
714 static int tps65910_set_voltage_dcdc_sel(struct regulator_dev *dev,
717 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
718 int id = rdev_get_id(dev), vsel;
722 case TPS65910_REG_VDD1:
723 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
726 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
728 tps65910_modify_bits(pmic, TPS65910_VDD1,
729 (dcdc_mult << VDD1_VGAIN_SEL_SHIFT),
730 VDD1_VGAIN_SEL_MASK);
731 tps65910_reg_write(pmic, TPS65910_VDD1_OP, vsel);
733 case TPS65910_REG_VDD2:
734 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
737 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
739 tps65910_modify_bits(pmic, TPS65910_VDD2,
740 (dcdc_mult << VDD2_VGAIN_SEL_SHIFT),
741 VDD1_VGAIN_SEL_MASK);
742 tps65910_reg_write(pmic, TPS65910_VDD2_OP, vsel);
744 case TPS65911_REG_VDDCTRL:
746 tps65910_reg_write(pmic, TPS65911_VDDCTRL_OP, vsel);
752 static int tps65910_set_voltage_sel(struct regulator_dev *dev,
755 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
756 int reg, id = rdev_get_id(dev);
758 reg = pmic->get_ctrl_reg(id);
763 case TPS65910_REG_VIO:
764 case TPS65910_REG_VDIG1:
765 case TPS65910_REG_VDIG2:
766 case TPS65910_REG_VPLL:
767 case TPS65910_REG_VDAC:
768 case TPS65910_REG_VAUX1:
769 case TPS65910_REG_VAUX2:
770 case TPS65910_REG_VAUX33:
771 case TPS65910_REG_VMMC:
772 return tps65910_modify_bits(pmic, reg,
773 (selector << LDO_SEL_SHIFT), LDO_SEL_MASK);
779 static int tps65911_set_voltage_sel(struct regulator_dev *dev,
782 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
783 int reg, id = rdev_get_id(dev);
785 reg = pmic->get_ctrl_reg(id);
790 case TPS65911_REG_LDO1:
791 case TPS65911_REG_LDO2:
792 case TPS65911_REG_LDO4:
793 return tps65910_modify_bits(pmic, reg,
794 (selector << LDO_SEL_SHIFT), LDO1_SEL_MASK);
795 case TPS65911_REG_LDO3:
796 case TPS65911_REG_LDO5:
797 case TPS65911_REG_LDO6:
798 case TPS65911_REG_LDO7:
799 case TPS65911_REG_LDO8:
800 return tps65910_modify_bits(pmic, reg,
801 (selector << LDO_SEL_SHIFT), LDO3_SEL_MASK);
802 case TPS65910_REG_VIO:
803 return tps65910_modify_bits(pmic, reg,
804 (selector << LDO_SEL_SHIFT), LDO_SEL_MASK);
811 static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
814 int volt, mult = 1, id = rdev_get_id(dev);
817 case TPS65910_REG_VDD1:
818 case TPS65910_REG_VDD2:
819 mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
820 volt = VDD1_2_MIN_VOLT +
821 (selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
823 case TPS65911_REG_VDDCTRL:
824 volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
831 return volt * 100 * mult;
834 static int tps65910_list_voltage(struct regulator_dev *dev,
837 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
838 int id = rdev_get_id(dev), voltage;
840 if (id < TPS65910_REG_VIO || id > TPS65910_REG_VMMC)
843 if (selector >= pmic->info[id]->n_voltages)
846 voltage = pmic->info[id]->voltage_table[selector] * 1000;
851 static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
853 struct tps65910_reg *pmic = rdev_get_drvdata(dev);
854 int step_mv = 0, id = rdev_get_id(dev);
857 case TPS65911_REG_LDO1:
858 case TPS65911_REG_LDO2:
859 case TPS65911_REG_LDO4:
860 /* The first 5 values of the selector correspond to 1V */
868 case TPS65911_REG_LDO3:
869 case TPS65911_REG_LDO5:
870 case TPS65911_REG_LDO6:
871 case TPS65911_REG_LDO7:
872 case TPS65911_REG_LDO8:
873 /* The first 3 values of the selector correspond to 1V */
881 case TPS65910_REG_VIO:
882 return pmic->info[id]->voltage_table[selector] * 1000;
887 return (LDO_MIN_VOLT + selector * step_mv) * 1000;
890 static int tps65910_set_voltage_dcdc_time_sel(struct regulator_dev *dev,
891 unsigned int old_selector, unsigned int new_selector)
893 int id = rdev_get_id(dev);
894 int old_volt, new_volt;
896 old_volt = tps65910_list_voltage_dcdc(dev, old_selector);
900 new_volt = tps65910_list_voltage_dcdc(dev, new_selector);
904 /* VDD1 and VDD2 are 12.5mV/us, VDDCTRL is 100mV/20us */
906 case TPS65910_REG_VDD1:
907 case TPS65910_REG_VDD2:
908 return DIV_ROUND_UP(abs(old_volt - new_volt), 12500);
909 case TPS65911_REG_VDDCTRL:
910 return DIV_ROUND_UP(abs(old_volt - new_volt), 5000);
915 /* Regulator ops (except VRTC) */
916 static struct regulator_ops tps65910_ops_dcdc = {
917 .is_enabled = tps65910_is_enabled,
918 .enable = tps65910_enable,
919 .disable = tps65910_disable,
920 .enable_time = tps65910_enable_time,
921 .set_mode = tps65910_set_mode,
922 .get_mode = tps65910_get_mode,
923 .get_voltage_sel = tps65910_get_voltage_dcdc_sel,
924 .set_voltage_sel = tps65910_set_voltage_dcdc_sel,
925 .set_voltage_time_sel = tps65910_set_voltage_dcdc_time_sel,
926 .list_voltage = tps65910_list_voltage_dcdc,
929 static struct regulator_ops tps65910_ops_vdd3 = {
930 .is_enabled = tps65910_is_enabled,
931 .enable = tps65910_enable,
932 .disable = tps65910_disable,
933 .enable_time = tps65910_enable_time,
934 .set_mode = tps65910_set_mode,
935 .get_mode = tps65910_get_mode,
936 .get_voltage = tps65910_get_voltage_vdd3,
937 .list_voltage = tps65910_list_voltage,
940 static struct regulator_ops tps65910_ops = {
941 .is_enabled = tps65910_is_enabled,
942 .enable = tps65910_enable,
943 .disable = tps65910_disable,
944 .enable_time = tps65910_enable_time,
945 .set_mode = tps65910_set_mode,
946 .get_mode = tps65910_get_mode,
947 .get_voltage = tps65910_get_voltage,
948 .set_voltage_sel = tps65910_set_voltage_sel,
949 .list_voltage = tps65910_list_voltage,
952 static struct regulator_ops tps65911_ops = {
953 .is_enabled = tps65910_is_enabled,
954 .enable = tps65910_enable,
955 .disable = tps65910_disable,
956 .enable_time = tps65910_enable_time,
957 .set_mode = tps65910_set_mode,
958 .get_mode = tps65910_get_mode,
959 .get_voltage = tps65911_get_voltage,
960 .set_voltage_sel = tps65911_set_voltage_sel,
961 .list_voltage = tps65911_list_voltage,
964 static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
965 int id, int ext_sleep_config)
967 struct tps65910 *mfd = pmic->mfd;
968 u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
969 u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
973 * Regulator can not be control from multiple external input EN1, EN2
976 if (ext_sleep_config & EXT_SLEEP_CONTROL) {
978 en_count = ((ext_sleep_config &
979 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
980 en_count += ((ext_sleep_config &
981 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
982 en_count += ((ext_sleep_config &
983 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
984 en_count += ((ext_sleep_config &
985 TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
988 "External sleep control flag is not proper\n");
993 pmic->board_ext_control[id] = ext_sleep_config;
995 /* External EN1 control */
996 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
997 ret = tps65910_set_bits(mfd,
998 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
1000 ret = tps65910_clear_bits(mfd,
1001 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
1004 "Error in configuring external control EN1\n");
1008 /* External EN2 control */
1009 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
1010 ret = tps65910_set_bits(mfd,
1011 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
1013 ret = tps65910_clear_bits(mfd,
1014 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
1017 "Error in configuring external control EN2\n");
1021 /* External EN3 control for TPS65910 LDO only */
1022 if ((tps65910_chip_id(mfd) == TPS65910) &&
1023 (id >= TPS65910_REG_VDIG1)) {
1024 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
1025 ret = tps65910_set_bits(mfd,
1026 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
1028 ret = tps65910_clear_bits(mfd,
1029 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
1032 "Error in configuring external control EN3\n");
1037 /* Return if no external control is selected */
1038 if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
1039 /* Clear all sleep controls */
1040 ret = tps65910_clear_bits(mfd,
1041 TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
1043 ret = tps65910_clear_bits(mfd,
1044 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
1047 "Error in configuring SLEEP register\n");
1052 * For regulator that has separate operational and sleep register make
1053 * sure that operational is used and clear sleep register to turn
1054 * regulator off when external control is inactive
1056 if ((id == TPS65910_REG_VDD1) ||
1057 (id == TPS65910_REG_VDD2) ||
1058 ((id == TPS65911_REG_VDDCTRL) &&
1059 (tps65910_chip_id(mfd) == TPS65911))) {
1060 int op_reg_add = pmic->get_ctrl_reg(id) + 1;
1061 int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
1062 int opvsel = tps65910_reg_read(pmic, op_reg_add);
1063 int srvsel = tps65910_reg_read(pmic, sr_reg_add);
1064 if (opvsel & VDD1_OP_CMD_MASK) {
1065 u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
1066 ret = tps65910_reg_write(pmic, op_reg_add, reg_val);
1069 "Error in configuring op register\n");
1073 ret = tps65910_reg_write(pmic, sr_reg_add, 0);
1075 dev_err(mfd->dev, "Error in settting sr register\n");
1080 ret = tps65910_clear_bits(mfd,
1081 TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
1083 if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
1084 ret = tps65910_set_bits(mfd,
1085 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
1087 ret = tps65910_clear_bits(mfd,
1088 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
1092 "Error in configuring SLEEP register\n");
1097 static __devinit int tps65910_probe(struct platform_device *pdev)
1099 struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
1100 struct tps_info *info;
1101 struct regulator_init_data *reg_data;
1102 struct regulator_dev *rdev;
1103 struct tps65910_reg *pmic;
1104 struct tps65910_board *pmic_plat_data;
1107 pmic_plat_data = dev_get_platdata(tps65910->dev);
1108 if (!pmic_plat_data)
1111 pmic = kzalloc(sizeof(*pmic), GFP_KERNEL);
1115 mutex_init(&pmic->mutex);
1116 pmic->mfd = tps65910;
1117 platform_set_drvdata(pdev, pmic);
1119 /* Give control of all register to control port */
1120 tps65910_set_bits(pmic->mfd, TPS65910_DEVCTRL,
1121 DEVCTRL_SR_CTL_I2C_SEL_MASK);
1123 switch(tps65910_chip_id(tps65910)) {
1125 pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
1126 pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
1127 pmic->ext_sleep_control = tps65910_ext_sleep_control;
1128 info = tps65910_regs;
1131 pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
1132 pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
1133 pmic->ext_sleep_control = tps65911_ext_sleep_control;
1134 info = tps65911_regs;
1137 pr_err("Invalid tps chip version\n");
1142 pmic->desc = kcalloc(pmic->num_regulators,
1143 sizeof(struct regulator_desc), GFP_KERNEL);
1149 pmic->info = kcalloc(pmic->num_regulators,
1150 sizeof(struct tps_info *), GFP_KERNEL);
1156 pmic->rdev = kcalloc(pmic->num_regulators,
1157 sizeof(struct regulator_dev *), GFP_KERNEL);
1163 for (i = 0; i < pmic->num_regulators && i < TPS65910_NUM_REGS;
1166 reg_data = pmic_plat_data->tps65910_pmic_init_data[i];
1168 /* Regulator API handles empty constraints but not NULL
1173 /* Register the regulators */
1174 pmic->info[i] = info;
1176 pmic->desc[i].name = info->name;
1177 pmic->desc[i].id = i;
1178 pmic->desc[i].n_voltages = info->n_voltages;
1180 if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
1181 pmic->desc[i].ops = &tps65910_ops_dcdc;
1182 pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE *
1183 VDD1_2_NUM_VOLT_COARSE;
1184 } else if (i == TPS65910_REG_VDD3) {
1185 if (tps65910_chip_id(tps65910) == TPS65910)
1186 pmic->desc[i].ops = &tps65910_ops_vdd3;
1188 pmic->desc[i].ops = &tps65910_ops_dcdc;
1190 if (tps65910_chip_id(tps65910) == TPS65910)
1191 pmic->desc[i].ops = &tps65910_ops;
1193 pmic->desc[i].ops = &tps65911_ops;
1196 err = tps65910_set_ext_sleep_config(pmic, i,
1197 pmic_plat_data->regulator_ext_sleep_control[i]);
1199 * Failing on regulator for configuring externally control
1200 * is not a serious issue, just throw warning.
1203 dev_warn(tps65910->dev,
1204 "Failed to initialise ext control config\n");
1206 pmic->desc[i].type = REGULATOR_VOLTAGE;
1207 pmic->desc[i].owner = THIS_MODULE;
1209 rdev = regulator_register(&pmic->desc[i],
1210 tps65910->dev, reg_data, pmic, NULL);
1212 dev_err(tps65910->dev,
1213 "failed to register %s regulator\n",
1215 err = PTR_ERR(rdev);
1216 goto err_unregister_regulator;
1219 /* Save regulator for cleanup */
1220 pmic->rdev[i] = rdev;
1224 err_unregister_regulator:
1226 regulator_unregister(pmic->rdev[i]);
1237 static int __devexit tps65910_remove(struct platform_device *pdev)
1239 struct tps65910_reg *pmic = platform_get_drvdata(pdev);
1242 for (i = 0; i < pmic->num_regulators; i++)
1243 regulator_unregister(pmic->rdev[i]);
1252 static void tps65910_shutdown(struct platform_device *pdev)
1254 struct tps65910_reg *pmic = platform_get_drvdata(pdev);
1258 * Before bootloader jumps to kernel, it makes sure that required
1259 * external control signals are in desired state so that given rails
1260 * can be configure accordingly.
1261 * If rails are configured to be controlled from external control
1262 * then before shutting down/rebooting the system, the external
1263 * control configuration need to be remove from the rails so that
1264 * its output will be available as per register programming even
1265 * if external controls are removed. This is require when the POR
1266 * value of the control signals are not in active state and before
1267 * bootloader initializes it, the system requires the rail output
1268 * to be active for booting.
1270 for (i = 0; i < pmic->num_regulators; i++) {
1275 err = tps65910_set_ext_sleep_config(pmic, i, 0);
1278 "Error in clearing external control\n");
1282 static struct platform_driver tps65910_driver = {
1284 .name = "tps65910-pmic",
1285 .owner = THIS_MODULE,
1287 .probe = tps65910_probe,
1288 .remove = __devexit_p(tps65910_remove),
1289 .shutdown = tps65910_shutdown,
1292 static int __init tps65910_init(void)
1294 return platform_driver_register(&tps65910_driver);
1296 subsys_initcall(tps65910_init);
1298 static void __exit tps65910_cleanup(void)
1300 platform_driver_unregister(&tps65910_driver);
1302 module_exit(tps65910_cleanup);
1304 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1305 MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver");
1306 MODULE_LICENSE("GPL v2");
1307 MODULE_ALIAS("platform:tps65910-pmic");