2 * twl-regulator.c -- support regulators in twl4030/twl6030 family chips
4 * Copyright (C) 2008 David Brownell
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
12 #include <linux/module.h>
13 #include <linux/string.h>
14 #include <linux/slab.h>
15 #include <linux/init.h>
16 #include <linux/err.h>
17 #include <linux/platform_device.h>
19 #include <linux/of_device.h>
20 #include <linux/regulator/driver.h>
21 #include <linux/regulator/machine.h>
22 #include <linux/regulator/of_regulator.h>
23 #include <linux/i2c/twl.h>
27 * The TWL4030/TW5030/TPS659x0/TWL6030 family chips include power management, a
28 * USB OTG transceiver, an RTC, ADC, PWM, and lots more. Some versions
29 * include an audio codec, battery charger, and more voltage regulators.
30 * These chips are often used in OMAP-based systems.
32 * This driver implements software-based resource control for various
33 * voltage regulators. This is usually augmented with state machine
38 /* start of regulator's PM_RECEIVER control register bank */
41 /* twl resource ID, for resource control state machine */
44 /* voltage in mV = table[VSEL]; table_len must be a power-of-two */
48 /* State REMAP default configuration */
51 /* chip constraints on regulator behavior */
57 /* used by regulator core */
58 struct regulator_desc desc
;
60 /* chip specific features */
61 unsigned long features
;
64 * optional override functions for voltage set/get
65 * these are currently only used for SMPS regulators
67 int (*get_voltage
)(void *data
);
68 int (*set_voltage
)(void *data
, int target_uV
);
70 /* data passed from board for external get/set voltage */
75 /* LDO control registers ... offset is from the base of its register bank.
76 * The first three registers of all power resource banks help hardware to
77 * manage the various resource groups.
79 /* Common offset in TWL4030/6030 */
81 /* TWL4030 register offsets */
84 #define VREG_DEDICATED 3 /* LDO control */
85 #define VREG_VOLTAGE_SMPS_4030 9
86 /* TWL6030 register offsets */
89 #define VREG_VOLTAGE 3
90 #define VREG_VOLTAGE_SMPS 4
91 /* TWL6030 Misc register offsets */
94 #define VREG_BC_PROC 3
95 #define VREG_BC_CLK_RST 4
97 /* TWL6030 LDO register values for CFG_STATE */
98 #define TWL6030_CFG_STATE_OFF 0x00
99 #define TWL6030_CFG_STATE_ON 0x01
100 #define TWL6030_CFG_STATE_OFF2 0x02
101 #define TWL6030_CFG_STATE_SLEEP 0x03
102 #define TWL6030_CFG_STATE_GRP_SHIFT 5
103 #define TWL6030_CFG_STATE_APP_SHIFT 2
104 #define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT)
105 #define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\
106 TWL6030_CFG_STATE_APP_SHIFT)
108 /* Flags for SMPS Voltage reading */
109 #define SMPS_OFFSET_EN BIT(0)
110 #define SMPS_EXTENDED_EN BIT(1)
112 /* twl6025 SMPS EPROM values */
113 #define TWL6030_SMPS_OFFSET 0xB0
114 #define TWL6030_SMPS_MULT 0xB3
115 #define SMPS_MULTOFFSET_SMPS4 BIT(0)
116 #define SMPS_MULTOFFSET_VIO BIT(1)
117 #define SMPS_MULTOFFSET_SMPS3 BIT(6)
120 twlreg_read(struct twlreg_info
*info
, unsigned slave_subgp
, unsigned offset
)
125 status
= twl_i2c_read_u8(slave_subgp
,
126 &value
, info
->base
+ offset
);
127 return (status
< 0) ? status
: value
;
131 twlreg_write(struct twlreg_info
*info
, unsigned slave_subgp
, unsigned offset
,
134 return twl_i2c_write_u8(slave_subgp
,
135 value
, info
->base
+ offset
);
138 /*----------------------------------------------------------------------*/
140 /* generic power resource operations, which work on all regulators */
142 static int twlreg_grp(struct regulator_dev
*rdev
)
144 return twlreg_read(rdev_get_drvdata(rdev
), TWL_MODULE_PM_RECEIVER
,
149 * Enable/disable regulators by joining/leaving the P1 (processor) group.
150 * We assume nobody else is updating the DEV_GRP registers.
152 /* definition for 4030 family */
153 #define P3_GRP_4030 BIT(7) /* "peripherals" */
154 #define P2_GRP_4030 BIT(6) /* secondary processor, modem, etc */
155 #define P1_GRP_4030 BIT(5) /* CPU/Linux */
156 /* definition for 6030 family */
157 #define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */
158 #define P2_GRP_6030 BIT(1) /* "peripherals" */
159 #define P1_GRP_6030 BIT(0) /* CPU/Linux */
161 static int twl4030reg_is_enabled(struct regulator_dev
*rdev
)
163 int state
= twlreg_grp(rdev
);
168 return state
& P1_GRP_4030
;
171 static int twl6030reg_is_enabled(struct regulator_dev
*rdev
)
173 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
176 if (!(twl_class_is_6030() && (info
->features
& TWL6025_SUBCLASS
))) {
177 grp
= twlreg_grp(rdev
);
185 val
= twlreg_read(info
, TWL_MODULE_PM_RECEIVER
, VREG_STATE
);
186 val
= TWL6030_CFG_STATE_APP(val
);
188 return grp
&& (val
== TWL6030_CFG_STATE_ON
);
191 static int twl4030reg_enable(struct regulator_dev
*rdev
)
193 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
197 grp
= twlreg_grp(rdev
);
203 ret
= twlreg_write(info
, TWL_MODULE_PM_RECEIVER
, VREG_GRP
, grp
);
208 static int twl6030reg_enable(struct regulator_dev
*rdev
)
210 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
214 if (!(twl_class_is_6030() && (info
->features
& TWL6025_SUBCLASS
)))
215 grp
= twlreg_grp(rdev
);
219 ret
= twlreg_write(info
, TWL_MODULE_PM_RECEIVER
, VREG_STATE
,
220 grp
<< TWL6030_CFG_STATE_GRP_SHIFT
|
221 TWL6030_CFG_STATE_ON
);
225 static int twl4030reg_disable(struct regulator_dev
*rdev
)
227 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
231 grp
= twlreg_grp(rdev
);
235 grp
&= ~(P1_GRP_4030
| P2_GRP_4030
| P3_GRP_4030
);
237 ret
= twlreg_write(info
, TWL_MODULE_PM_RECEIVER
, VREG_GRP
, grp
);
242 static int twl6030reg_disable(struct regulator_dev
*rdev
)
244 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
248 if (!(twl_class_is_6030() && (info
->features
& TWL6025_SUBCLASS
)))
249 grp
= P1_GRP_6030
| P2_GRP_6030
| P3_GRP_6030
;
251 /* For 6030, set the off state for all grps enabled */
252 ret
= twlreg_write(info
, TWL_MODULE_PM_RECEIVER
, VREG_STATE
,
253 (grp
) << TWL6030_CFG_STATE_GRP_SHIFT
|
254 TWL6030_CFG_STATE_OFF
);
259 static int twl4030reg_get_status(struct regulator_dev
*rdev
)
261 int state
= twlreg_grp(rdev
);
267 /* assume state != WARM_RESET; we'd not be running... */
269 return REGULATOR_STATUS_OFF
;
270 return (state
& BIT(3))
271 ? REGULATOR_STATUS_NORMAL
272 : REGULATOR_STATUS_STANDBY
;
275 static int twl6030reg_get_status(struct regulator_dev
*rdev
)
277 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
280 val
= twlreg_grp(rdev
);
284 val
= twlreg_read(info
, TWL_MODULE_PM_RECEIVER
, VREG_STATE
);
286 switch (TWL6030_CFG_STATE_APP(val
)) {
287 case TWL6030_CFG_STATE_ON
:
288 return REGULATOR_STATUS_NORMAL
;
290 case TWL6030_CFG_STATE_SLEEP
:
291 return REGULATOR_STATUS_STANDBY
;
293 case TWL6030_CFG_STATE_OFF
:
294 case TWL6030_CFG_STATE_OFF2
:
299 return REGULATOR_STATUS_OFF
;
302 static int twl4030reg_set_mode(struct regulator_dev
*rdev
, unsigned mode
)
304 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
308 /* We can only set the mode through state machine commands... */
310 case REGULATOR_MODE_NORMAL
:
311 message
= MSG_SINGULAR(DEV_GRP_P1
, info
->id
, RES_STATE_ACTIVE
);
313 case REGULATOR_MODE_STANDBY
:
314 message
= MSG_SINGULAR(DEV_GRP_P1
, info
->id
, RES_STATE_SLEEP
);
320 /* Ensure the resource is associated with some group */
321 status
= twlreg_grp(rdev
);
324 if (!(status
& (P3_GRP_4030
| P2_GRP_4030
| P1_GRP_4030
)))
327 status
= twl_i2c_write_u8(TWL_MODULE_PM_MASTER
,
328 message
>> 8, TWL4030_PM_MASTER_PB_WORD_MSB
);
332 return twl_i2c_write_u8(TWL_MODULE_PM_MASTER
,
333 message
& 0xff, TWL4030_PM_MASTER_PB_WORD_LSB
);
336 static int twl6030reg_set_mode(struct regulator_dev
*rdev
, unsigned mode
)
338 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
342 if (!(twl_class_is_6030() && (info
->features
& TWL6025_SUBCLASS
)))
343 grp
= twlreg_grp(rdev
);
348 /* Compose the state register settings */
349 val
= grp
<< TWL6030_CFG_STATE_GRP_SHIFT
;
350 /* We can only set the mode through state machine commands... */
352 case REGULATOR_MODE_NORMAL
:
353 val
|= TWL6030_CFG_STATE_ON
;
355 case REGULATOR_MODE_STANDBY
:
356 val
|= TWL6030_CFG_STATE_SLEEP
;
363 return twlreg_write(info
, TWL_MODULE_PM_RECEIVER
, VREG_STATE
, val
);
366 /*----------------------------------------------------------------------*/
369 * Support for adjustable-voltage LDOs uses a four bit (or less) voltage
370 * select field in its control register. We use tables indexed by VSEL
371 * to record voltages in milliVolts. (Accuracy is about three percent.)
373 * Note that VSEL values for VAUX2 changed in twl5030 and newer silicon;
374 * currently handled by listing two slightly different VAUX2 regulators,
375 * only one of which will be configured.
377 * VSEL values documented as "TI cannot support these values" are flagged
378 * in these tables as UNSUP() values; we normally won't assign them.
380 * VAUX3 at 3V is incorrectly listed in some TI manuals as unsupported.
381 * TI are revising the twl5030/tps659x0 specs to support that 3.0V setting.
383 #define UNSUP_MASK 0x8000
385 #define UNSUP(x) (UNSUP_MASK | (x))
386 #define IS_UNSUP(info, x) \
387 ((UNSUP_MASK & (x)) && \
388 !((info)->features & TWL4030_ALLOW_UNSUPPORTED))
389 #define LDO_MV(x) (~UNSUP_MASK & (x))
392 static const u16 VAUX1_VSEL_table
[] = {
393 UNSUP(1500), UNSUP(1800), 2500, 2800,
394 3000, 3000, 3000, 3000,
396 static const u16 VAUX2_4030_VSEL_table
[] = {
397 UNSUP(1000), UNSUP(1000), UNSUP(1200), 1300,
398 1500, 1800, UNSUP(1850), 2500,
399 UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
400 UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
402 static const u16 VAUX2_VSEL_table
[] = {
403 1700, 1700, 1900, 1300,
404 1500, 1800, 2000, 2500,
405 2100, 2800, 2200, 2300,
406 2400, 2400, 2400, 2400,
408 static const u16 VAUX3_VSEL_table
[] = {
409 1500, 1800, 2500, 2800,
410 3000, 3000, 3000, 3000,
412 static const u16 VAUX4_VSEL_table
[] = {
413 700, 1000, 1200, UNSUP(1300),
414 1500, 1800, UNSUP(1850), 2500,
415 UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
416 UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
418 static const u16 VMMC1_VSEL_table
[] = {
419 1850, 2850, 3000, 3150,
421 static const u16 VMMC2_VSEL_table
[] = {
422 UNSUP(1000), UNSUP(1000), UNSUP(1200), UNSUP(1300),
423 UNSUP(1500), UNSUP(1800), 1850, UNSUP(2500),
424 2600, 2800, 2850, 3000,
425 3150, 3150, 3150, 3150,
427 static const u16 VPLL1_VSEL_table
[] = {
428 1000, 1200, 1300, 1800,
429 UNSUP(2800), UNSUP(3000), UNSUP(3000), UNSUP(3000),
431 static const u16 VPLL2_VSEL_table
[] = {
432 700, 1000, 1200, 1300,
433 UNSUP(1500), 1800, UNSUP(1850), UNSUP(2500),
434 UNSUP(2600), UNSUP(2800), UNSUP(2850), UNSUP(3000),
435 UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
437 static const u16 VSIM_VSEL_table
[] = {
438 UNSUP(1000), UNSUP(1200), UNSUP(1300), 1800,
439 2800, 3000, 3000, 3000,
441 static const u16 VDAC_VSEL_table
[] = {
442 1200, 1300, 1800, 1800,
444 static const u16 VDD1_VSEL_table
[] = {
447 static const u16 VDD2_VSEL_table
[] = {
450 static const u16 VIO_VSEL_table
[] = {
453 static const u16 VINTANA2_VSEL_table
[] = {
457 static int twl4030ldo_list_voltage(struct regulator_dev
*rdev
, unsigned index
)
459 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
460 int mV
= info
->table
[index
];
462 return IS_UNSUP(info
, mV
) ? 0 : (LDO_MV(mV
) * 1000);
466 twl4030ldo_set_voltage_sel(struct regulator_dev
*rdev
, unsigned selector
)
468 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
470 return twlreg_write(info
, TWL_MODULE_PM_RECEIVER
, VREG_VOLTAGE
,
474 static int twl4030ldo_get_voltage(struct regulator_dev
*rdev
)
476 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
477 int vsel
= twlreg_read(info
, TWL_MODULE_PM_RECEIVER
,
483 vsel
&= info
->table_len
- 1;
484 return LDO_MV(info
->table
[vsel
]) * 1000;
487 static struct regulator_ops twl4030ldo_ops
= {
488 .list_voltage
= twl4030ldo_list_voltage
,
490 .set_voltage_sel
= twl4030ldo_set_voltage_sel
,
491 .get_voltage
= twl4030ldo_get_voltage
,
493 .enable
= twl4030reg_enable
,
494 .disable
= twl4030reg_disable
,
495 .is_enabled
= twl4030reg_is_enabled
,
497 .set_mode
= twl4030reg_set_mode
,
499 .get_status
= twl4030reg_get_status
,
503 twl4030smps_set_voltage(struct regulator_dev
*rdev
, int min_uV
, int max_uV
,
506 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
507 int vsel
= DIV_ROUND_UP(min_uV
- 600000, 12500);
509 if (info
->set_voltage
) {
510 return info
->set_voltage(info
->data
, min_uV
);
512 twlreg_write(info
, TWL_MODULE_PM_RECEIVER
,
513 VREG_VOLTAGE_SMPS_4030
, vsel
);
519 static int twl4030smps_get_voltage(struct regulator_dev
*rdev
)
521 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
524 if (info
->get_voltage
)
525 return info
->get_voltage(info
->data
);
527 vsel
= twlreg_read(info
, TWL_MODULE_PM_RECEIVER
,
528 VREG_VOLTAGE_SMPS_4030
);
530 return vsel
* 12500 + 600000;
533 static struct regulator_ops twl4030smps_ops
= {
534 .set_voltage
= twl4030smps_set_voltage
,
535 .get_voltage
= twl4030smps_get_voltage
,
538 static int twl6030coresmps_set_voltage(struct regulator_dev
*rdev
, int min_uV
,
539 int max_uV
, unsigned *selector
)
541 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
543 if (info
->set_voltage
)
544 return info
->set_voltage(info
->data
, min_uV
);
549 static int twl6030coresmps_get_voltage(struct regulator_dev
*rdev
)
551 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
553 if (info
->get_voltage
)
554 return info
->get_voltage(info
->data
);
559 static struct regulator_ops twl6030coresmps_ops
= {
560 .set_voltage
= twl6030coresmps_set_voltage
,
561 .get_voltage
= twl6030coresmps_get_voltage
,
564 static int twl6030ldo_list_voltage(struct regulator_dev
*rdev
, unsigned sel
)
566 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
572 /* Linear mapping from 00000001 to 00011000:
573 * Absolute voltage value = 1.0 V + 0.1 V × (sel – 00000001)
575 return (info
->min_mV
+ 100 * (sel
- 1)) * 1000;
586 twl6030ldo_set_voltage_sel(struct regulator_dev
*rdev
, unsigned selector
)
588 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
590 return twlreg_write(info
, TWL_MODULE_PM_RECEIVER
, VREG_VOLTAGE
,
594 static int twl6030ldo_get_voltage_sel(struct regulator_dev
*rdev
)
596 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
597 int vsel
= twlreg_read(info
, TWL_MODULE_PM_RECEIVER
, VREG_VOLTAGE
);
602 static struct regulator_ops twl6030ldo_ops
= {
603 .list_voltage
= twl6030ldo_list_voltage
,
605 .set_voltage_sel
= twl6030ldo_set_voltage_sel
,
606 .get_voltage_sel
= twl6030ldo_get_voltage_sel
,
608 .enable
= twl6030reg_enable
,
609 .disable
= twl6030reg_disable
,
610 .is_enabled
= twl6030reg_is_enabled
,
612 .set_mode
= twl6030reg_set_mode
,
614 .get_status
= twl6030reg_get_status
,
617 /*----------------------------------------------------------------------*/
620 * Fixed voltage LDOs don't have a VSEL field to update.
622 static int twlfixed_list_voltage(struct regulator_dev
*rdev
, unsigned index
)
624 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
626 return info
->min_mV
* 1000;
629 static struct regulator_ops twl4030fixed_ops
= {
630 .list_voltage
= twlfixed_list_voltage
,
632 .enable
= twl4030reg_enable
,
633 .disable
= twl4030reg_disable
,
634 .is_enabled
= twl4030reg_is_enabled
,
636 .set_mode
= twl4030reg_set_mode
,
638 .get_status
= twl4030reg_get_status
,
641 static struct regulator_ops twl6030fixed_ops
= {
642 .list_voltage
= twlfixed_list_voltage
,
644 .enable
= twl6030reg_enable
,
645 .disable
= twl6030reg_disable
,
646 .is_enabled
= twl6030reg_is_enabled
,
648 .set_mode
= twl6030reg_set_mode
,
650 .get_status
= twl6030reg_get_status
,
654 * SMPS status and control
657 static int twl6030smps_list_voltage(struct regulator_dev
*rdev
, unsigned index
)
659 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
663 switch (info
->flags
) {
673 voltage
= 1350 * 1000;
676 voltage
= 1500 * 1000;
679 voltage
= 1800 * 1000;
682 voltage
= 1900 * 1000;
685 voltage
= 2100 * 1000;
688 voltage
+= (600000 + (12500 * (index
- 1)));
691 case SMPS_EXTENDED_EN
:
697 voltage
= 2084 * 1000;
700 voltage
= 2315 * 1000;
703 voltage
= 2778 * 1000;
706 voltage
= 2932 * 1000;
709 voltage
= 3241 * 1000;
712 voltage
= (1852000 + (38600 * (index
- 1)));
715 case SMPS_OFFSET_EN
| SMPS_EXTENDED_EN
:
721 voltage
= 4167 * 1000;
724 voltage
= 2315 * 1000;
727 voltage
= 2778 * 1000;
730 voltage
= 2932 * 1000;
733 voltage
= 3241 * 1000;
736 voltage
= (2161000 + (38600 * (index
- 1)));
744 static int twl6030smps_map_voltage(struct regulator_dev
*rdev
, int min_uV
,
747 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
750 switch (info
->flags
) {
754 else if ((min_uV
>= 600000) && (min_uV
<= 1300000)) {
755 vsel
= DIV_ROUND_UP(min_uV
- 600000, 12500);
758 /* Values 1..57 for vsel are linear and can be calculated
759 * values 58..62 are non linear.
761 else if ((min_uV
> 1900000) && (min_uV
<= 2100000))
763 else if ((min_uV
> 1800000) && (min_uV
<= 1900000))
765 else if ((min_uV
> 1500000) && (min_uV
<= 1800000))
767 else if ((min_uV
> 1350000) && (min_uV
<= 1500000))
769 else if ((min_uV
> 1300000) && (min_uV
<= 1350000))
777 else if ((min_uV
>= 700000) && (min_uV
<= 1420000)) {
778 vsel
= DIV_ROUND_UP(min_uV
- 700000, 12500);
781 /* Values 1..57 for vsel are linear and can be calculated
782 * values 58..62 are non linear.
784 else if ((min_uV
> 1900000) && (min_uV
<= 2100000))
786 else if ((min_uV
> 1800000) && (min_uV
<= 1900000))
788 else if ((min_uV
> 1350000) && (min_uV
<= 1800000))
790 else if ((min_uV
> 1350000) && (min_uV
<= 1500000))
792 else if ((min_uV
> 1300000) && (min_uV
<= 1350000))
797 case SMPS_EXTENDED_EN
:
800 } else if ((min_uV
>= 1852000) && (max_uV
<= 4013600)) {
801 vsel
= DIV_ROUND_UP(min_uV
- 1852000, 38600);
805 case SMPS_OFFSET_EN
|SMPS_EXTENDED_EN
:
808 } else if ((min_uV
>= 2161000) && (min_uV
<= 4321000)) {
809 vsel
= DIV_ROUND_UP(min_uV
- 2161000, 38600);
818 static int twl6030smps_set_voltage_sel(struct regulator_dev
*rdev
,
819 unsigned int selector
)
821 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
823 return twlreg_write(info
, TWL_MODULE_PM_RECEIVER
, VREG_VOLTAGE_SMPS
,
827 static int twl6030smps_get_voltage_sel(struct regulator_dev
*rdev
)
829 struct twlreg_info
*info
= rdev_get_drvdata(rdev
);
831 return twlreg_read(info
, TWL_MODULE_PM_RECEIVER
, VREG_VOLTAGE_SMPS
);
834 static struct regulator_ops twlsmps_ops
= {
835 .list_voltage
= twl6030smps_list_voltage
,
836 .map_voltage
= twl6030smps_map_voltage
,
838 .set_voltage_sel
= twl6030smps_set_voltage_sel
,
839 .get_voltage_sel
= twl6030smps_get_voltage_sel
,
841 .enable
= twl6030reg_enable
,
842 .disable
= twl6030reg_disable
,
843 .is_enabled
= twl6030reg_is_enabled
,
845 .set_mode
= twl6030reg_set_mode
,
847 .get_status
= twl6030reg_get_status
,
850 /*----------------------------------------------------------------------*/
852 #define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
854 TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
855 remap_conf, TWL4030, twl4030fixed_ops)
856 #define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
857 TWL_FIXED_LDO(label, offset, mVolts, 0x0, turnon_delay, \
858 0x0, TWL6030, twl6030fixed_ops)
860 #define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
861 static const struct twlreg_info TWL4030_INFO_##label = { \
864 .table_len = ARRAY_SIZE(label##_VSEL_table), \
865 .table = label##_VSEL_table, \
866 .remap = remap_conf, \
869 .id = TWL4030_REG_##label, \
870 .n_voltages = ARRAY_SIZE(label##_VSEL_table), \
871 .ops = &twl4030ldo_ops, \
872 .type = REGULATOR_VOLTAGE, \
873 .owner = THIS_MODULE, \
874 .enable_time = turnon_delay, \
878 #define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \
879 static const struct twlreg_info TWL4030_INFO_##label = { \
882 .remap = remap_conf, \
885 .id = TWL4030_REG_##label, \
886 .ops = &twl4030smps_ops, \
887 .type = REGULATOR_VOLTAGE, \
888 .owner = THIS_MODULE, \
889 .enable_time = turnon_delay, \
893 #define TWL6030_ADJUSTABLE_SMPS(label) \
894 static const struct twlreg_info TWL6030_INFO_##label = { \
897 .id = TWL6030_REG_##label, \
898 .ops = &twl6030coresmps_ops, \
899 .type = REGULATOR_VOLTAGE, \
900 .owner = THIS_MODULE, \
904 #define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
905 static const struct twlreg_info TWL6030_INFO_##label = { \
907 .min_mV = min_mVolts, \
908 .max_mV = max_mVolts, \
911 .id = TWL6030_REG_##label, \
913 .ops = &twl6030ldo_ops, \
914 .type = REGULATOR_VOLTAGE, \
915 .owner = THIS_MODULE, \
919 #define TWL6025_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
920 static const struct twlreg_info TWL6025_INFO_##label = { \
922 .min_mV = min_mVolts, \
923 .max_mV = max_mVolts, \
926 .id = TWL6025_REG_##label, \
928 .ops = &twl6030ldo_ops, \
929 .type = REGULATOR_VOLTAGE, \
930 .owner = THIS_MODULE, \
934 #define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
935 family, operations) \
936 static const struct twlreg_info TWLFIXED_INFO_##label = { \
940 .remap = remap_conf, \
943 .id = family##_REG_##label, \
945 .ops = &operations, \
946 .type = REGULATOR_VOLTAGE, \
947 .owner = THIS_MODULE, \
948 .enable_time = turnon_delay, \
952 #define TWL6030_FIXED_RESOURCE(label, offset, turnon_delay) \
953 static struct twlreg_info TWLRES_INFO_##label = { \
957 .id = TWL6030_REG_##label, \
958 .ops = &twl6030_fixed_resource, \
959 .type = REGULATOR_VOLTAGE, \
960 .owner = THIS_MODULE, \
961 .enable_time = turnon_delay, \
965 #define TWL6025_ADJUSTABLE_SMPS(label, offset) \
966 static const struct twlreg_info TWLSMPS_INFO_##label = { \
972 .id = TWL6025_REG_##label, \
974 .ops = &twlsmps_ops, \
975 .type = REGULATOR_VOLTAGE, \
976 .owner = THIS_MODULE, \
981 * We list regulators here if systems need some level of
982 * software control over them after boot.
984 TWL4030_ADJUSTABLE_LDO(VAUX1
, 0x17, 1, 100, 0x08);
985 TWL4030_ADJUSTABLE_LDO(VAUX2_4030
, 0x1b, 2, 100, 0x08);
986 TWL4030_ADJUSTABLE_LDO(VAUX2
, 0x1b, 2, 100, 0x08);
987 TWL4030_ADJUSTABLE_LDO(VAUX3
, 0x1f, 3, 100, 0x08);
988 TWL4030_ADJUSTABLE_LDO(VAUX4
, 0x23, 4, 100, 0x08);
989 TWL4030_ADJUSTABLE_LDO(VMMC1
, 0x27, 5, 100, 0x08);
990 TWL4030_ADJUSTABLE_LDO(VMMC2
, 0x2b, 6, 100, 0x08);
991 TWL4030_ADJUSTABLE_LDO(VPLL1
, 0x2f, 7, 100, 0x00);
992 TWL4030_ADJUSTABLE_LDO(VPLL2
, 0x33, 8, 100, 0x08);
993 TWL4030_ADJUSTABLE_LDO(VSIM
, 0x37, 9, 100, 0x00);
994 TWL4030_ADJUSTABLE_LDO(VDAC
, 0x3b, 10, 100, 0x08);
995 TWL4030_ADJUSTABLE_LDO(VINTANA2
, 0x43, 12, 100, 0x08);
996 TWL4030_ADJUSTABLE_LDO(VIO
, 0x4b, 14, 1000, 0x08);
997 TWL4030_ADJUSTABLE_SMPS(VDD1
, 0x55, 15, 1000, 0x08);
998 TWL4030_ADJUSTABLE_SMPS(VDD2
, 0x63, 16, 1000, 0x08);
999 /* VUSBCP is managed *only* by the USB subchip */
1000 /* 6030 REG with base as PMC Slave Misc : 0x0030 */
1001 /* Turnon-delay and remap configuration values for 6030 are not
1002 verified since the specification is not public */
1003 TWL6030_ADJUSTABLE_SMPS(VDD1
);
1004 TWL6030_ADJUSTABLE_SMPS(VDD2
);
1005 TWL6030_ADJUSTABLE_SMPS(VDD3
);
1006 TWL6030_ADJUSTABLE_LDO(VAUX1_6030
, 0x54, 1000, 3300);
1007 TWL6030_ADJUSTABLE_LDO(VAUX2_6030
, 0x58, 1000, 3300);
1008 TWL6030_ADJUSTABLE_LDO(VAUX3_6030
, 0x5c, 1000, 3300);
1009 TWL6030_ADJUSTABLE_LDO(VMMC
, 0x68, 1000, 3300);
1010 TWL6030_ADJUSTABLE_LDO(VPP
, 0x6c, 1000, 3300);
1011 TWL6030_ADJUSTABLE_LDO(VUSIM
, 0x74, 1000, 3300);
1012 /* 6025 are renamed compared to 6030 versions */
1013 TWL6025_ADJUSTABLE_LDO(LDO2
, 0x54, 1000, 3300);
1014 TWL6025_ADJUSTABLE_LDO(LDO4
, 0x58, 1000, 3300);
1015 TWL6025_ADJUSTABLE_LDO(LDO3
, 0x5c, 1000, 3300);
1016 TWL6025_ADJUSTABLE_LDO(LDO5
, 0x68, 1000, 3300);
1017 TWL6025_ADJUSTABLE_LDO(LDO1
, 0x6c, 1000, 3300);
1018 TWL6025_ADJUSTABLE_LDO(LDO7
, 0x74, 1000, 3300);
1019 TWL6025_ADJUSTABLE_LDO(LDO6
, 0x60, 1000, 3300);
1020 TWL6025_ADJUSTABLE_LDO(LDOLN
, 0x64, 1000, 3300);
1021 TWL6025_ADJUSTABLE_LDO(LDOUSB
, 0x70, 1000, 3300);
1022 TWL4030_FIXED_LDO(VINTANA1
, 0x3f, 1500, 11, 100, 0x08);
1023 TWL4030_FIXED_LDO(VINTDIG
, 0x47, 1500, 13, 100, 0x08);
1024 TWL4030_FIXED_LDO(VUSB1V5
, 0x71, 1500, 17, 100, 0x08);
1025 TWL4030_FIXED_LDO(VUSB1V8
, 0x74, 1800, 18, 100, 0x08);
1026 TWL4030_FIXED_LDO(VUSB3V1
, 0x77, 3100, 19, 150, 0x08);
1027 TWL6030_FIXED_LDO(VANA
, 0x50, 2100, 0);
1028 TWL6030_FIXED_LDO(VCXIO
, 0x60, 1800, 0);
1029 TWL6030_FIXED_LDO(VDAC
, 0x64, 1800, 0);
1030 TWL6030_FIXED_LDO(VUSB
, 0x70, 3300, 0);
1031 TWL6030_FIXED_LDO(V1V8
, 0x16, 1800, 0);
1032 TWL6030_FIXED_LDO(V2V1
, 0x1c, 2100, 0);
1033 TWL6025_ADJUSTABLE_SMPS(SMPS3
, 0x34);
1034 TWL6025_ADJUSTABLE_SMPS(SMPS4
, 0x10);
1035 TWL6025_ADJUSTABLE_SMPS(VIO
, 0x16);
1037 static u8
twl_get_smps_offset(void)
1041 twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER
, &value
,
1042 TWL6030_SMPS_OFFSET
);
1046 static u8
twl_get_smps_mult(void)
1050 twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER
, &value
,
1055 #define TWL_OF_MATCH(comp, family, label) \
1057 .compatible = comp, \
1058 .data = &family##_INFO_##label, \
1061 #define TWL4030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL4030, label)
1062 #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
1063 #define TWL6025_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6025, label)
1064 #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)
1065 #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)
1067 static const struct of_device_id twl_of_match
[] __devinitconst
= {
1068 TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1
),
1069 TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030
),
1070 TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2
),
1071 TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3
),
1072 TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4
),
1073 TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1
),
1074 TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2
),
1075 TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1
),
1076 TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2
),
1077 TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM
),
1078 TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC
),
1079 TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2
),
1080 TWL4030_OF_MATCH("ti,twl4030-vio", VIO
),
1081 TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1
),
1082 TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2
),
1083 TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1
),
1084 TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2
),
1085 TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3
),
1086 TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030
),
1087 TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030
),
1088 TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030
),
1089 TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC
),
1090 TWL6030_OF_MATCH("ti,twl6030-vpp", VPP
),
1091 TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM
),
1092 TWL6025_OF_MATCH("ti,twl6025-ldo2", LDO2
),
1093 TWL6025_OF_MATCH("ti,twl6025-ldo4", LDO4
),
1094 TWL6025_OF_MATCH("ti,twl6025-ldo3", LDO3
),
1095 TWL6025_OF_MATCH("ti,twl6025-ldo5", LDO5
),
1096 TWL6025_OF_MATCH("ti,twl6025-ldo1", LDO1
),
1097 TWL6025_OF_MATCH("ti,twl6025-ldo7", LDO7
),
1098 TWL6025_OF_MATCH("ti,twl6025-ldo6", LDO6
),
1099 TWL6025_OF_MATCH("ti,twl6025-ldoln", LDOLN
),
1100 TWL6025_OF_MATCH("ti,twl6025-ldousb", LDOUSB
),
1101 TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1
),
1102 TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG
),
1103 TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5
),
1104 TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8
),
1105 TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1
),
1106 TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA
),
1107 TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO
),
1108 TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC
),
1109 TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB
),
1110 TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8
),
1111 TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1
),
1112 TWLSMPS_OF_MATCH("ti,twl6025-smps3", SMPS3
),
1113 TWLSMPS_OF_MATCH("ti,twl6025-smps4", SMPS4
),
1114 TWLSMPS_OF_MATCH("ti,twl6025-vio", VIO
),
1117 MODULE_DEVICE_TABLE(of
, twl_of_match
);
1119 static int twlreg_probe(struct platform_device
*pdev
)
1122 struct twlreg_info
*info
;
1123 const struct twlreg_info
*template;
1124 struct regulator_init_data
*initdata
;
1125 struct regulation_constraints
*c
;
1126 struct regulator_dev
*rdev
;
1127 struct twl_regulator_driver_data
*drvdata
;
1128 const struct of_device_id
*match
;
1129 struct regulator_config config
= { };
1131 match
= of_match_device(twl_of_match
, &pdev
->dev
);
1133 template = match
->data
;
1134 id
= template->desc
.id
;
1135 initdata
= of_get_regulator_init_data(&pdev
->dev
,
1140 initdata
= pdev
->dev
.platform_data
;
1141 for (i
= 0, template = NULL
; i
< ARRAY_SIZE(twl_of_match
); i
++) {
1142 template = twl_of_match
[i
].data
;
1143 if (template && template->desc
.id
== id
)
1146 if (i
== ARRAY_SIZE(twl_of_match
))
1149 drvdata
= initdata
->driver_data
;
1160 info
= kmemdup(template, sizeof (*info
), GFP_KERNEL
);
1165 /* copy the driver data into regulator data */
1166 info
->features
= drvdata
->features
;
1167 info
->data
= drvdata
->data
;
1168 info
->set_voltage
= drvdata
->set_voltage
;
1169 info
->get_voltage
= drvdata
->get_voltage
;
1172 /* Constrain board-specific capabilities according to what
1173 * this driver and the chip itself can actually do.
1175 c
= &initdata
->constraints
;
1176 c
->valid_modes_mask
&= REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY
;
1177 c
->valid_ops_mask
&= REGULATOR_CHANGE_VOLTAGE
1178 | REGULATOR_CHANGE_MODE
1179 | REGULATOR_CHANGE_STATUS
;
1181 case TWL4030_REG_VIO
:
1182 case TWL4030_REG_VDD1
:
1183 case TWL4030_REG_VDD2
:
1184 case TWL4030_REG_VPLL1
:
1185 case TWL4030_REG_VINTANA1
:
1186 case TWL4030_REG_VINTANA2
:
1187 case TWL4030_REG_VINTDIG
:
1188 c
->always_on
= true;
1195 case TWL6025_REG_SMPS3
:
1196 if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3
)
1197 info
->flags
|= SMPS_EXTENDED_EN
;
1198 if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3
)
1199 info
->flags
|= SMPS_OFFSET_EN
;
1201 case TWL6025_REG_SMPS4
:
1202 if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4
)
1203 info
->flags
|= SMPS_EXTENDED_EN
;
1204 if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4
)
1205 info
->flags
|= SMPS_OFFSET_EN
;
1207 case TWL6025_REG_VIO
:
1208 if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO
)
1209 info
->flags
|= SMPS_EXTENDED_EN
;
1210 if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO
)
1211 info
->flags
|= SMPS_OFFSET_EN
;
1215 config
.dev
= &pdev
->dev
;
1216 config
.init_data
= initdata
;
1217 config
.driver_data
= info
;
1218 config
.of_node
= pdev
->dev
.of_node
;
1220 rdev
= regulator_register(&info
->desc
, &config
);
1222 dev_err(&pdev
->dev
, "can't register %s, %ld\n",
1223 info
->desc
.name
, PTR_ERR(rdev
));
1225 return PTR_ERR(rdev
);
1227 platform_set_drvdata(pdev
, rdev
);
1229 if (twl_class_is_4030())
1230 twlreg_write(info
, TWL_MODULE_PM_RECEIVER
, VREG_REMAP
,
1233 /* NOTE: many regulators support short-circuit IRQs (presentable
1234 * as REGULATOR_OVER_CURRENT notifications?) configured via:
1236 * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)
1237 * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)
1244 static int twlreg_remove(struct platform_device
*pdev
)
1246 struct regulator_dev
*rdev
= platform_get_drvdata(pdev
);
1247 struct twlreg_info
*info
= rdev
->reg_data
;
1249 regulator_unregister(rdev
);
1254 MODULE_ALIAS("platform:twl_reg");
1256 static struct platform_driver twlreg_driver
= {
1257 .probe
= twlreg_probe
,
1258 .remove
= twlreg_remove
,
1259 /* NOTE: short name, to work around driver model truncation of
1260 * "twl_regulator.12" (and friends) to "twl_regulator.1".
1264 .owner
= THIS_MODULE
,
1265 .of_match_table
= of_match_ptr(twl_of_match
),
1269 static int __init
twlreg_init(void)
1271 return platform_driver_register(&twlreg_driver
);
1273 subsys_initcall(twlreg_init
);
1275 static void __exit
twlreg_exit(void)
1277 platform_driver_unregister(&twlreg_driver
);
1279 module_exit(twlreg_exit
)
1281 MODULE_DESCRIPTION("TWL regulator driver");
1282 MODULE_LICENSE("GPL");