2 * Copyright (C) ST-Ericsson SA 2010
4 * License Terms: GNU General Public License v2
6 * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
7 * Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson
9 * AB8500 peripheral regulators
11 * AB8500 supports the following regulators:
12 * VAUX1/2/3, VINTCORE, VTVOUT, VUSB, VAUDIO, VAMIC1/2, VDMIC, VANA
14 #include <linux/init.h>
15 #include <linux/kernel.h>
16 #include <linux/module.h>
17 #include <linux/err.h>
18 #include <linux/platform_device.h>
19 #include <linux/mfd/abx500.h>
20 #include <linux/mfd/abx500/ab8500.h>
22 #include <linux/regulator/of_regulator.h>
23 #include <linux/regulator/driver.h>
24 #include <linux/regulator/machine.h>
25 #include <linux/regulator/ab8500.h>
26 #include <linux/slab.h>
29 * struct ab8500_regulator_info - ab8500 regulator information
30 * @dev: device pointer
31 * @desc: regulator description
32 * @regulator_dev: regulator device
33 * @is_enabled: status of regulator (on/off)
34 * @load_lp_uA: maximum load in idle (low power) mode
35 * @update_bank: bank to control on/off
36 * @update_reg: register to control on/off
37 * @update_mask: mask to enable/disable and set mode of regulator
38 * @update_val: bits holding the regulator current mode
39 * @update_val_idle: bits to enable the regulator in idle (low power) mode
40 * @update_val_normal: bits to enable the regulator in normal (high power) mode
41 * @voltage_bank: bank to control regulator voltage
42 * @voltage_reg: register to control regulator voltage
43 * @voltage_mask: mask to control regulator voltage
44 * @voltage_shift: shift to control regulator voltage
45 * @delay: startup/set voltage delay in us
47 struct ab8500_regulator_info
{
49 struct regulator_desc desc
;
50 struct regulator_dev
*regulator
;
66 /* voltage tables for the vauxn/vintcore supplies */
67 static const unsigned int ldo_vauxn_voltages
[] = {
86 static const unsigned int ldo_vaux3_voltages
[] = {
97 static const unsigned int ldo_vintcore_voltages
[] = {
107 static int ab8500_regulator_enable(struct regulator_dev
*rdev
)
110 struct ab8500_regulator_info
*info
= rdev_get_drvdata(rdev
);
113 dev_err(rdev_get_dev(rdev
), "regulator info null pointer\n");
117 ret
= abx500_mask_and_set_register_interruptible(info
->dev
,
118 info
->update_bank
, info
->update_reg
,
119 info
->update_mask
, info
->update_val
);
121 dev_err(rdev_get_dev(rdev
),
122 "couldn't set enable bits for regulator\n");
124 info
->is_enabled
= true;
126 dev_vdbg(rdev_get_dev(rdev
),
127 "%s-enable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n",
128 info
->desc
.name
, info
->update_bank
, info
->update_reg
,
129 info
->update_mask
, info
->update_val
);
134 static int ab8500_regulator_disable(struct regulator_dev
*rdev
)
137 struct ab8500_regulator_info
*info
= rdev_get_drvdata(rdev
);
140 dev_err(rdev_get_dev(rdev
), "regulator info null pointer\n");
144 ret
= abx500_mask_and_set_register_interruptible(info
->dev
,
145 info
->update_bank
, info
->update_reg
,
146 info
->update_mask
, 0x0);
148 dev_err(rdev_get_dev(rdev
),
149 "couldn't set disable bits for regulator\n");
151 info
->is_enabled
= false;
153 dev_vdbg(rdev_get_dev(rdev
),
154 "%s-disable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n",
155 info
->desc
.name
, info
->update_bank
, info
->update_reg
,
156 info
->update_mask
, 0x0);
161 static unsigned int ab8500_regulator_get_optimum_mode(
162 struct regulator_dev
*rdev
, int input_uV
,
163 int output_uV
, int load_uA
)
167 struct ab8500_regulator_info
*info
= rdev_get_drvdata(rdev
);
170 dev_err(rdev_get_dev(rdev
), "regulator info null pointer\n");
174 if (load_uA
<= info
->load_lp_uA
)
175 mode
= REGULATOR_MODE_IDLE
;
177 mode
= REGULATOR_MODE_NORMAL
;
182 static int ab8500_regulator_set_mode(struct regulator_dev
*rdev
,
187 struct ab8500_regulator_info
*info
= rdev_get_drvdata(rdev
);
190 dev_err(rdev_get_dev(rdev
), "regulator info null pointer\n");
195 case REGULATOR_MODE_NORMAL
:
196 info
->update_val
= info
->update_val_normal
;
198 case REGULATOR_MODE_IDLE
:
199 info
->update_val
= info
->update_val_idle
;
205 if (info
->is_enabled
) {
206 ret
= abx500_mask_and_set_register_interruptible(info
->dev
,
207 info
->update_bank
, info
->update_reg
,
208 info
->update_mask
, info
->update_val
);
210 dev_err(rdev_get_dev(rdev
),
211 "couldn't set regulator mode\n");
213 dev_vdbg(rdev_get_dev(rdev
),
214 "%s-set_mode (bank, reg, mask, value): "
215 "0x%x, 0x%x, 0x%x, 0x%x\n",
216 info
->desc
.name
, info
->update_bank
, info
->update_reg
,
217 info
->update_mask
, info
->update_val
);
223 static unsigned int ab8500_regulator_get_mode(struct regulator_dev
*rdev
)
225 struct ab8500_regulator_info
*info
= rdev_get_drvdata(rdev
);
229 dev_err(rdev_get_dev(rdev
), "regulator info null pointer\n");
233 if (info
->update_val
== info
->update_val_normal
)
234 ret
= REGULATOR_MODE_NORMAL
;
235 else if (info
->update_val
== info
->update_val_idle
)
236 ret
= REGULATOR_MODE_IDLE
;
243 static int ab8500_regulator_is_enabled(struct regulator_dev
*rdev
)
246 struct ab8500_regulator_info
*info
= rdev_get_drvdata(rdev
);
250 dev_err(rdev_get_dev(rdev
), "regulator info null pointer\n");
254 ret
= abx500_get_register_interruptible(info
->dev
,
255 info
->update_bank
, info
->update_reg
, ®val
);
257 dev_err(rdev_get_dev(rdev
),
258 "couldn't read 0x%x register\n", info
->update_reg
);
262 dev_vdbg(rdev_get_dev(rdev
),
263 "%s-is_enabled (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"
265 info
->desc
.name
, info
->update_bank
, info
->update_reg
,
266 info
->update_mask
, regval
);
268 if (regval
& info
->update_mask
)
269 info
->is_enabled
= true;
271 info
->is_enabled
= false;
273 return info
->is_enabled
;
276 static int ab8500_regulator_get_voltage_sel(struct regulator_dev
*rdev
)
279 struct ab8500_regulator_info
*info
= rdev_get_drvdata(rdev
);
283 dev_err(rdev_get_dev(rdev
), "regulator info null pointer\n");
287 ret
= abx500_get_register_interruptible(info
->dev
,
288 info
->voltage_bank
, info
->voltage_reg
, ®val
);
290 dev_err(rdev_get_dev(rdev
),
291 "couldn't read voltage reg for regulator\n");
295 dev_vdbg(rdev_get_dev(rdev
),
296 "%s-get_voltage (bank, reg, mask, shift, value): "
297 "0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",
298 info
->desc
.name
, info
->voltage_bank
,
299 info
->voltage_reg
, info
->voltage_mask
,
300 info
->voltage_shift
, regval
);
302 val
= regval
& info
->voltage_mask
;
303 return val
>> info
->voltage_shift
;
306 static int ab8500_regulator_set_voltage_sel(struct regulator_dev
*rdev
,
310 struct ab8500_regulator_info
*info
= rdev_get_drvdata(rdev
);
314 dev_err(rdev_get_dev(rdev
), "regulator info null pointer\n");
318 /* set the registers for the request */
319 regval
= (u8
)selector
<< info
->voltage_shift
;
320 ret
= abx500_mask_and_set_register_interruptible(info
->dev
,
321 info
->voltage_bank
, info
->voltage_reg
,
322 info
->voltage_mask
, regval
);
324 dev_err(rdev_get_dev(rdev
),
325 "couldn't set voltage reg for regulator\n");
327 dev_vdbg(rdev_get_dev(rdev
),
328 "%s-set_voltage (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"
330 info
->desc
.name
, info
->voltage_bank
, info
->voltage_reg
,
331 info
->voltage_mask
, regval
);
336 static int ab8500_regulator_set_voltage_time_sel(struct regulator_dev
*rdev
,
337 unsigned int old_sel
,
338 unsigned int new_sel
)
340 struct ab8500_regulator_info
*info
= rdev_get_drvdata(rdev
);
345 static struct regulator_ops ab8500_regulator_volt_mode_ops
= {
346 .enable
= ab8500_regulator_enable
,
347 .disable
= ab8500_regulator_disable
,
348 .is_enabled
= ab8500_regulator_is_enabled
,
349 .get_optimum_mode
= ab8500_regulator_get_optimum_mode
,
350 .set_mode
= ab8500_regulator_set_mode
,
351 .get_mode
= ab8500_regulator_get_mode
,
352 .get_voltage_sel
= ab8500_regulator_get_voltage_sel
,
353 .set_voltage_sel
= ab8500_regulator_set_voltage_sel
,
354 .list_voltage
= regulator_list_voltage_table
,
355 .set_voltage_time_sel
= ab8500_regulator_set_voltage_time_sel
,
358 static struct regulator_ops ab8500_regulator_mode_ops
= {
359 .enable
= ab8500_regulator_enable
,
360 .disable
= ab8500_regulator_disable
,
361 .is_enabled
= ab8500_regulator_is_enabled
,
362 .get_optimum_mode
= ab8500_regulator_get_optimum_mode
,
363 .set_mode
= ab8500_regulator_set_mode
,
364 .get_mode
= ab8500_regulator_get_mode
,
365 .get_voltage_sel
= ab8500_regulator_get_voltage_sel
,
366 .list_voltage
= regulator_list_voltage_table
,
367 .set_voltage_time_sel
= ab8500_regulator_set_voltage_time_sel
,
370 static struct regulator_ops ab8500_regulator_ops
= {
371 .enable
= ab8500_regulator_enable
,
372 .disable
= ab8500_regulator_disable
,
373 .is_enabled
= ab8500_regulator_is_enabled
,
374 .get_voltage_sel
= ab8500_regulator_get_voltage_sel
,
375 .list_voltage
= regulator_list_voltage_table
,
378 static struct ab8500_regulator_info
379 ab8500_regulator_info
[AB8500_NUM_REGULATORS
] = {
381 * Variable Voltage Regulators
382 * name, min mV, max mV,
383 * update bank, reg, mask, enable val
384 * volt bank, reg, mask
386 [AB8500_LDO_AUX1
] = {
389 .ops
= &ab8500_regulator_volt_mode_ops
,
390 .type
= REGULATOR_VOLTAGE
,
391 .id
= AB8500_LDO_AUX1
,
392 .owner
= THIS_MODULE
,
393 .n_voltages
= ARRAY_SIZE(ldo_vauxn_voltages
),
394 .volt_table
= ldo_vauxn_voltages
,
401 .update_val_idle
= 0x03,
402 .update_val_normal
= 0x01,
403 .voltage_bank
= 0x04,
405 .voltage_mask
= 0x0f,
407 [AB8500_LDO_AUX2
] = {
410 .ops
= &ab8500_regulator_volt_mode_ops
,
411 .type
= REGULATOR_VOLTAGE
,
412 .id
= AB8500_LDO_AUX2
,
413 .owner
= THIS_MODULE
,
414 .n_voltages
= ARRAY_SIZE(ldo_vauxn_voltages
),
415 .volt_table
= ldo_vauxn_voltages
,
422 .update_val_idle
= 0x0c,
423 .update_val_normal
= 0x04,
424 .voltage_bank
= 0x04,
426 .voltage_mask
= 0x0f,
428 [AB8500_LDO_AUX3
] = {
431 .ops
= &ab8500_regulator_volt_mode_ops
,
432 .type
= REGULATOR_VOLTAGE
,
433 .id
= AB8500_LDO_AUX3
,
434 .owner
= THIS_MODULE
,
435 .n_voltages
= ARRAY_SIZE(ldo_vaux3_voltages
),
436 .volt_table
= ldo_vaux3_voltages
,
443 .update_val_idle
= 0x03,
444 .update_val_normal
= 0x01,
445 .voltage_bank
= 0x04,
447 .voltage_mask
= 0x07,
449 [AB8500_LDO_INTCORE
] = {
451 .name
= "LDO-INTCORE",
452 .ops
= &ab8500_regulator_volt_mode_ops
,
453 .type
= REGULATOR_VOLTAGE
,
454 .id
= AB8500_LDO_INTCORE
,
455 .owner
= THIS_MODULE
,
456 .n_voltages
= ARRAY_SIZE(ldo_vintcore_voltages
),
457 .volt_table
= ldo_vintcore_voltages
,
464 .update_val_idle
= 0x44,
465 .update_val_normal
= 0x04,
466 .voltage_bank
= 0x03,
468 .voltage_mask
= 0x38,
473 * Fixed Voltage Regulators
475 * update bank, reg, mask, enable val
477 [AB8500_LDO_TVOUT
] = {
480 .ops
= &ab8500_regulator_mode_ops
,
481 .type
= REGULATOR_VOLTAGE
,
482 .id
= AB8500_LDO_TVOUT
,
483 .owner
= THIS_MODULE
,
486 .enable_time
= 10000,
494 .update_val_idle
= 0x82,
495 .update_val_normal
= 0x02,
500 .ops
= &ab8500_regulator_fixed_ops
,
501 .type
= REGULATOR_VOLTAGE
,
502 .id
= AB8500_LDO_USB
,
503 .owner
= THIS_MODULE
,
513 * Regulators with fixed voltage and normal mode
515 [AB8500_LDO_AUDIO
] = {
518 .ops
= &ab8500_regulator_ops
,
519 .type
= REGULATOR_VOLTAGE
,
520 .id
= AB8500_LDO_AUDIO
,
521 .owner
= THIS_MODULE
,
530 [AB8500_LDO_ANAMIC1
] = {
532 .name
= "LDO-ANAMIC1",
533 .ops
= &ab8500_regulator_ops
,
534 .type
= REGULATOR_VOLTAGE
,
535 .id
= AB8500_LDO_ANAMIC1
,
536 .owner
= THIS_MODULE
,
545 [AB8500_LDO_ANAMIC2
] = {
547 .name
= "LDO-ANAMIC2",
548 .ops
= &ab8500_regulator_ops
,
549 .type
= REGULATOR_VOLTAGE
,
550 .id
= AB8500_LDO_ANAMIC2
,
551 .owner
= THIS_MODULE
,
560 [AB8500_LDO_DMIC
] = {
563 .ops
= &ab8500_regulator_ops
,
564 .type
= REGULATOR_VOLTAGE
,
565 .id
= AB8500_LDO_DMIC
,
566 .owner
= THIS_MODULE
,
577 * Regulators with fixed voltage and normal/idle modes
582 .ops
= &ab8500_regulator_mode_ops
,
583 .type
= REGULATOR_VOLTAGE
,
584 .id
= AB8500_LDO_ANA
,
585 .owner
= THIS_MODULE
,
594 .update_val_idle
= 0x0c,
595 .update_val_normal
= 0x04,
601 struct ab8500_reg_init
{
607 #define REG_INIT(_id, _bank, _addr, _mask) \
614 static struct ab8500_reg_init ab8500_reg_init
[] = {
616 * 0x30, VanaRequestCtrl
617 * 0x0c, VpllRequestCtrl
618 * 0xc0, VextSupply1RequestCtrl
620 REG_INIT(AB8500_REGUREQUESTCTRL2
, 0x03, 0x04, 0xfc),
622 * 0x03, VextSupply2RequestCtrl
623 * 0x0c, VextSupply3RequestCtrl
624 * 0x30, Vaux1RequestCtrl
625 * 0xc0, Vaux2RequestCtrl
627 REG_INIT(AB8500_REGUREQUESTCTRL3
, 0x03, 0x05, 0xff),
629 * 0x03, Vaux3RequestCtrl
632 REG_INIT(AB8500_REGUREQUESTCTRL4
, 0x03, 0x06, 0x07),
634 * 0x01, Vsmps1SysClkReq1HPValid
635 * 0x02, Vsmps2SysClkReq1HPValid
636 * 0x04, Vsmps3SysClkReq1HPValid
637 * 0x08, VanaSysClkReq1HPValid
638 * 0x10, VpllSysClkReq1HPValid
639 * 0x20, Vaux1SysClkReq1HPValid
640 * 0x40, Vaux2SysClkReq1HPValid
641 * 0x80, Vaux3SysClkReq1HPValid
643 REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID1
, 0x03, 0x07, 0xff),
645 * 0x10, VextSupply1SysClkReq1HPValid
646 * 0x20, VextSupply2SysClkReq1HPValid
647 * 0x40, VextSupply3SysClkReq1HPValid
649 REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID2
, 0x03, 0x08, 0x70),
651 * 0x08, VanaHwHPReq1Valid
652 * 0x20, Vaux1HwHPReq1Valid
653 * 0x40, Vaux2HwHPReq1Valid
654 * 0x80, Vaux3HwHPReq1Valid
656 REG_INIT(AB8500_REGUHWHPREQ1VALID1
, 0x03, 0x09, 0xe8),
658 * 0x01, VextSupply1HwHPReq1Valid
659 * 0x02, VextSupply2HwHPReq1Valid
660 * 0x04, VextSupply3HwHPReq1Valid
662 REG_INIT(AB8500_REGUHWHPREQ1VALID2
, 0x03, 0x0a, 0x07),
664 * 0x08, VanaHwHPReq2Valid
665 * 0x20, Vaux1HwHPReq2Valid
666 * 0x40, Vaux2HwHPReq2Valid
667 * 0x80, Vaux3HwHPReq2Valid
669 REG_INIT(AB8500_REGUHWHPREQ2VALID1
, 0x03, 0x0b, 0xe8),
671 * 0x01, VextSupply1HwHPReq2Valid
672 * 0x02, VextSupply2HwHPReq2Valid
673 * 0x04, VextSupply3HwHPReq2Valid
675 REG_INIT(AB8500_REGUHWHPREQ2VALID2
, 0x03, 0x0c, 0x07),
677 * 0x20, VanaSwHPReqValid
678 * 0x80, Vaux1SwHPReqValid
680 REG_INIT(AB8500_REGUSWHPREQVALID1
, 0x03, 0x0d, 0xa0),
682 * 0x01, Vaux2SwHPReqValid
683 * 0x02, Vaux3SwHPReqValid
684 * 0x04, VextSupply1SwHPReqValid
685 * 0x08, VextSupply2SwHPReqValid
686 * 0x10, VextSupply3SwHPReqValid
688 REG_INIT(AB8500_REGUSWHPREQVALID2
, 0x03, 0x0e, 0x1f),
690 * 0x02, SysClkReq2Valid1
692 * 0x80, SysClkReq8Valid1
694 REG_INIT(AB8500_REGUSYSCLKREQVALID1
, 0x03, 0x0f, 0xfe),
696 * 0x02, SysClkReq2Valid2
698 * 0x80, SysClkReq8Valid2
700 REG_INIT(AB8500_REGUSYSCLKREQVALID2
, 0x03, 0x10, 0xfe),
703 * 0x04, Vintcore12Ena
704 * 0x38, Vintcore12Sel
708 REG_INIT(AB8500_REGUMISC1
, 0x03, 0x80, 0xfe),
715 REG_INIT(AB8500_VAUDIOSUPPLY
, 0x03, 0x83, 0x1e),
720 REG_INIT(AB8500_REGUCTRL1VAMIC
, 0x03, 0x84, 0x03),
724 * NOTE! PRCMU register
726 REG_INIT(AB8500_ARMREGU2
, 0x04, 0x01, 0x0f),
730 * NOTE! PRCMU register
732 REG_INIT(AB8500_VBBSEL1
, 0x04, 0x11, 0x0f),
736 * NOTE! PRCMU register
738 REG_INIT(AB8500_VBBSEL2
, 0x04, 0x12, 0x0f),
741 * 0x0c, Vsmps1SelCtrl
743 REG_INIT(AB8500_VSMPS1REGU
, 0x04, 0x03, 0x0f),
746 * 0x0c, Vsmps2SelCtrl
748 REG_INIT(AB8500_VSMPS2REGU
, 0x04, 0x04, 0x0f),
753 REG_INIT(AB8500_VPLLVANAREGU
, 0x04, 0x06, 0x0f),
756 * 0x02, VrefDDRSleepMode
758 REG_INIT(AB8500_VREFDDR
, 0x04, 0x07, 0x03),
760 * 0x03, VextSupply1Regu
761 * 0x0c, VextSupply2Regu
762 * 0x30, VextSupply3Regu
763 * 0x40, ExtSupply2Bypass
764 * 0x80, ExtSupply3Bypass
766 REG_INIT(AB8500_EXTSUPPLYREGU
, 0x04, 0x08, 0xff),
771 REG_INIT(AB8500_VAUX12REGU
, 0x04, 0x09, 0x0f),
776 REG_INIT(AB8500_VRF1VAUX3REGU
, 0x04, 0x0a, 0x0f),
780 REG_INIT(AB8500_VSMPS1SEL1
, 0x04, 0x13, 0x3f),
784 REG_INIT(AB8500_VAUX1SEL
, 0x04, 0x1f, 0x0f),
788 REG_INIT(AB8500_VAUX2SEL
, 0x04, 0x20, 0x0f),
792 REG_INIT(AB8500_VRF1VAUX3SEL
, 0x04, 0x21, 0x07),
794 * 0x01, VextSupply12LP
796 REG_INIT(AB8500_REGUCTRL2SPARE
, 0x04, 0x22, 0x01),
801 * 0x20, Vintcore12Disch
805 REG_INIT(AB8500_REGUCTRLDISCH
, 0x04, 0x43, 0xfc),
808 * 0x04, VdmicPullDownEna
811 REG_INIT(AB8500_REGUCTRLDISCH2
, 0x04, 0x44, 0x16),
814 static int ab8500_regulator_init_registers(struct platform_device
*pdev
,
815 int id
, int mask
, int value
)
819 BUG_ON(value
& ~mask
);
820 BUG_ON(mask
& ~ab8500_reg_init
[id
].mask
);
822 /* initialize register */
823 err
= abx500_mask_and_set_register_interruptible(
825 ab8500_reg_init
[id
].bank
,
826 ab8500_reg_init
[id
].addr
,
830 "Failed to initialize 0x%02x, 0x%02x.\n",
831 ab8500_reg_init
[id
].bank
,
832 ab8500_reg_init
[id
].addr
);
836 " init: 0x%02x, 0x%02x, 0x%02x, 0x%02x\n",
837 ab8500_reg_init
[id
].bank
,
838 ab8500_reg_init
[id
].addr
,
844 static int ab8500_regulator_register(struct platform_device
*pdev
,
845 struct regulator_init_data
*init_data
,
847 struct device_node
*np
)
849 struct ab8500_regulator_info
*info
= NULL
;
850 struct regulator_config config
= { };
853 /* assign per-regulator data */
854 info
= &ab8500_regulator_info
[id
];
855 info
->dev
= &pdev
->dev
;
857 config
.dev
= &pdev
->dev
;
858 config
.init_data
= init_data
;
859 config
.driver_data
= info
;
862 /* fix for hardware before ab8500v2.0 */
863 if (abx500_get_chip_id(info
->dev
) < 0x20) {
864 if (info
->desc
.id
== AB8500_LDO_AUX3
) {
865 info
->desc
.n_voltages
=
866 ARRAY_SIZE(ldo_vauxn_voltages
);
867 info
->desc
.volt_table
= ldo_vauxn_voltages
;
868 info
->voltage_mask
= 0xf;
872 /* register regulator with framework */
873 info
->regulator
= regulator_register(&info
->desc
, &config
);
874 if (IS_ERR(info
->regulator
)) {
875 err
= PTR_ERR(info
->regulator
);
876 dev_err(&pdev
->dev
, "failed to register regulator %s\n",
878 /* when we fail, un-register all earlier regulators */
880 info
= &ab8500_regulator_info
[id
];
881 regulator_unregister(info
->regulator
);
889 static struct of_regulator_match ab8500_regulator_matches
[] = {
890 { .name
= "ab8500_ldo_aux1", .driver_data
= (void *) AB8500_LDO_AUX1
, },
891 { .name
= "ab8500_ldo_aux2", .driver_data
= (void *) AB8500_LDO_AUX2
, },
892 { .name
= "ab8500_ldo_aux3", .driver_data
= (void *) AB8500_LDO_AUX3
, },
893 { .name
= "ab8500_ldo_intcore", .driver_data
= (void *) AB8500_LDO_INTCORE
, },
894 { .name
= "ab8500_ldo_tvout", .driver_data
= (void *) AB8500_LDO_TVOUT
, },
895 { .name
= "ab8500_ldo_usb", .driver_data
= (void *) AB8500_LDO_USB
, },
896 { .name
= "ab8500_ldo_audio", .driver_data
= (void *) AB8500_LDO_AUDIO
, },
897 { .name
= "ab8500_ldo_anamic1", .driver_data
= (void *) AB8500_LDO_ANAMIC1
, },
898 { .name
= "ab8500_ldo_amamic2", .driver_data
= (void *) AB8500_LDO_ANAMIC2
, },
899 { .name
= "ab8500_ldo_dmic", .driver_data
= (void *) AB8500_LDO_DMIC
, },
900 { .name
= "ab8500_ldo_ana", .driver_data
= (void *) AB8500_LDO_ANA
, },
904 ab8500_regulator_of_probe(struct platform_device
*pdev
, struct device_node
*np
)
908 for (i
= 0; i
< ARRAY_SIZE(ab8500_regulator_info
); i
++) {
909 err
= ab8500_regulator_register(
910 pdev
, ab8500_regulator_matches
[i
].init_data
,
911 i
, ab8500_regulator_matches
[i
].of_node
);
919 static int ab8500_regulator_probe(struct platform_device
*pdev
)
921 struct ab8500
*ab8500
= dev_get_drvdata(pdev
->dev
.parent
);
922 struct ab8500_platform_data
*pdata
;
923 struct device_node
*np
= pdev
->dev
.of_node
;
927 err
= of_regulator_match(&pdev
->dev
, np
,
928 ab8500_regulator_matches
,
929 ARRAY_SIZE(ab8500_regulator_matches
));
932 "Error parsing regulator init data: %d\n", err
);
936 err
= ab8500_regulator_of_probe(pdev
, np
);
941 dev_err(&pdev
->dev
, "null mfd parent\n");
944 pdata
= dev_get_platdata(ab8500
->dev
);
946 dev_err(&pdev
->dev
, "null pdata\n");
950 /* make sure the platform data has the correct size */
951 if (pdata
->num_regulator
!= ARRAY_SIZE(ab8500_regulator_info
)) {
952 dev_err(&pdev
->dev
, "Configuration error: size mismatch.\n");
956 /* initialize registers */
957 for (i
= 0; i
< pdata
->num_regulator_reg_init
; i
++) {
960 id
= pdata
->regulator_reg_init
[i
].id
;
961 mask
= pdata
->regulator_reg_init
[i
].mask
;
962 value
= pdata
->regulator_reg_init
[i
].value
;
964 /* check for configuration errors */
965 BUG_ON(id
>= AB8500_NUM_REGULATOR_REGISTERS
);
967 err
= ab8500_regulator_init_registers(pdev
, id
, mask
, value
);
972 /* register all regulators */
973 for (i
= 0; i
< ARRAY_SIZE(ab8500_regulator_info
); i
++) {
974 err
= ab8500_regulator_register(pdev
, &pdata
->regulator
[i
], i
, NULL
);
982 static int ab8500_regulator_remove(struct platform_device
*pdev
)
986 for (i
= 0; i
< ARRAY_SIZE(ab8500_regulator_info
); i
++) {
987 struct ab8500_regulator_info
*info
= NULL
;
988 info
= &ab8500_regulator_info
[i
];
990 dev_vdbg(rdev_get_dev(info
->regulator
),
991 "%s-remove\n", info
->desc
.name
);
993 regulator_unregister(info
->regulator
);
999 static struct platform_driver ab8500_regulator_driver
= {
1000 .probe
= ab8500_regulator_probe
,
1001 .remove
= ab8500_regulator_remove
,
1003 .name
= "ab8500-regulator",
1004 .owner
= THIS_MODULE
,
1008 static int __init
ab8500_regulator_init(void)
1012 ret
= platform_driver_register(&ab8500_regulator_driver
);
1014 pr_err("Failed to register ab8500 regulator: %d\n", ret
);
1018 subsys_initcall(ab8500_regulator_init
);
1020 static void __exit
ab8500_regulator_exit(void)
1022 platform_driver_unregister(&ab8500_regulator_driver
);
1024 module_exit(ab8500_regulator_exit
);
1026 MODULE_LICENSE("GPL v2");
1027 MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
1028 MODULE_DESCRIPTION("Regulator Driver for ST-Ericsson AB8500 Mixed-Sig PMIC");
1029 MODULE_ALIAS("platform:ab8500-regulator");