2 * TI LP8788 MFD - ldo regulator driver
4 * Copyright 2012 Texas Instruments
6 * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
14 #include <linux/module.h>
15 #include <linux/slab.h>
16 #include <linux/err.h>
17 #include <linux/platform_device.h>
18 #include <linux/regulator/driver.h>
19 #include <linux/gpio.h>
20 #include <linux/mfd/lp8788.h>
22 /* register address */
23 #define LP8788_EN_LDO_A 0x0D /* DLDO 1 ~ 8 */
24 #define LP8788_EN_LDO_B 0x0E /* DLDO 9 ~ 12, ALDO 1 ~ 4 */
25 #define LP8788_EN_LDO_C 0x0F /* ALDO 5 ~ 10 */
26 #define LP8788_EN_SEL 0x10
27 #define LP8788_DLDO1_VOUT 0x2E
28 #define LP8788_DLDO2_VOUT 0x2F
29 #define LP8788_DLDO3_VOUT 0x30
30 #define LP8788_DLDO4_VOUT 0x31
31 #define LP8788_DLDO5_VOUT 0x32
32 #define LP8788_DLDO6_VOUT 0x33
33 #define LP8788_DLDO7_VOUT 0x34
34 #define LP8788_DLDO8_VOUT 0x35
35 #define LP8788_DLDO9_VOUT 0x36
36 #define LP8788_DLDO10_VOUT 0x37
37 #define LP8788_DLDO11_VOUT 0x38
38 #define LP8788_DLDO12_VOUT 0x39
39 #define LP8788_ALDO1_VOUT 0x3A
40 #define LP8788_ALDO2_VOUT 0x3B
41 #define LP8788_ALDO3_VOUT 0x3C
42 #define LP8788_ALDO4_VOUT 0x3D
43 #define LP8788_ALDO5_VOUT 0x3E
44 #define LP8788_ALDO6_VOUT 0x3F
45 #define LP8788_ALDO7_VOUT 0x40
46 #define LP8788_ALDO8_VOUT 0x41
47 #define LP8788_ALDO9_VOUT 0x42
48 #define LP8788_ALDO10_VOUT 0x43
49 #define LP8788_DLDO1_TIMESTEP 0x44
52 #define LP8788_EN_DLDO1_M BIT(0) /* Addr 0Dh ~ 0Fh */
53 #define LP8788_EN_DLDO2_M BIT(1)
54 #define LP8788_EN_DLDO3_M BIT(2)
55 #define LP8788_EN_DLDO4_M BIT(3)
56 #define LP8788_EN_DLDO5_M BIT(4)
57 #define LP8788_EN_DLDO6_M BIT(5)
58 #define LP8788_EN_DLDO7_M BIT(6)
59 #define LP8788_EN_DLDO8_M BIT(7)
60 #define LP8788_EN_DLDO9_M BIT(0)
61 #define LP8788_EN_DLDO10_M BIT(1)
62 #define LP8788_EN_DLDO11_M BIT(2)
63 #define LP8788_EN_DLDO12_M BIT(3)
64 #define LP8788_EN_ALDO1_M BIT(4)
65 #define LP8788_EN_ALDO2_M BIT(5)
66 #define LP8788_EN_ALDO3_M BIT(6)
67 #define LP8788_EN_ALDO4_M BIT(7)
68 #define LP8788_EN_ALDO5_M BIT(0)
69 #define LP8788_EN_ALDO6_M BIT(1)
70 #define LP8788_EN_ALDO7_M BIT(2)
71 #define LP8788_EN_ALDO8_M BIT(3)
72 #define LP8788_EN_ALDO9_M BIT(4)
73 #define LP8788_EN_ALDO10_M BIT(5)
74 #define LP8788_EN_SEL_DLDO911_M BIT(0) /* Addr 10h */
75 #define LP8788_EN_SEL_DLDO7_M BIT(1)
76 #define LP8788_EN_SEL_ALDO7_M BIT(2)
77 #define LP8788_EN_SEL_ALDO5_M BIT(3)
78 #define LP8788_EN_SEL_ALDO234_M BIT(4)
79 #define LP8788_EN_SEL_ALDO1_M BIT(5)
80 #define LP8788_VOUT_5BIT_M 0x1F /* Addr 2Eh ~ 43h */
81 #define LP8788_VOUT_4BIT_M 0x0F
82 #define LP8788_VOUT_3BIT_M 0x07
83 #define LP8788_VOUT_1BIT_M 0x01
84 #define LP8788_STARTUP_TIME_M 0xF8 /* Addr 44h ~ 59h */
85 #define LP8788_STARTUP_TIME_S 3
87 #define ENABLE_TIME_USEC 32
88 #define ENABLE GPIOF_OUT_INIT_HIGH
89 #define DISABLE GPIOF_OUT_INIT_LOW
118 struct regulator_desc
*desc
;
119 struct regulator_dev
*regulator
;
120 struct lp8788_ldo_enable_pin
*en_pin
;
123 /* DLDO 1, 2, 3, 9 voltage table */
124 static const int lp8788_dldo1239_vtbl
[] = {
125 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000,
126 2600000, 2700000, 2800000, 2900000, 3000000, 2850000, 2850000, 2850000,
127 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000,
128 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000,
131 /* DLDO 4 voltage table */
132 static const int lp8788_dldo4_vtbl
[] = { 1800000, 3000000 };
134 /* DLDO 5, 7, 8 and ALDO 6 voltage table */
135 static const int lp8788_dldo578_aldo6_vtbl
[] = {
136 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000,
137 2600000, 2700000, 2800000, 2900000, 3000000, 3000000, 3000000, 3000000,
140 /* DLDO 6 voltage table */
141 static const int lp8788_dldo6_vtbl
[] = {
142 3000000, 3100000, 3200000, 3300000, 3400000, 3500000, 3600000, 3600000,
145 /* DLDO 10, 11 voltage table */
146 static const int lp8788_dldo1011_vtbl
[] = {
147 1100000, 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000,
148 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000,
151 /* ALDO 1 voltage table */
152 static const int lp8788_aldo1_vtbl
[] = { 1800000, 2850000 };
154 /* ALDO 7 voltage table */
155 static const int lp8788_aldo7_vtbl
[] = {
156 1200000, 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1800000,
159 static enum lp8788_ldo_id lp8788_dldo_id
[] = {
174 static enum lp8788_ldo_id lp8788_aldo_id
[] = {
187 static int lp8788_ldo_enable(struct regulator_dev
*rdev
)
189 struct lp8788_ldo
*ldo
= rdev_get_drvdata(rdev
);
192 gpio_set_value(ldo
->en_pin
->gpio
, ENABLE
);
195 return regulator_enable_regmap(rdev
);
199 static int lp8788_ldo_disable(struct regulator_dev
*rdev
)
201 struct lp8788_ldo
*ldo
= rdev_get_drvdata(rdev
);
204 gpio_set_value(ldo
->en_pin
->gpio
, DISABLE
);
207 return regulator_disable_regmap(rdev
);
211 static int lp8788_ldo_is_enabled(struct regulator_dev
*rdev
)
213 struct lp8788_ldo
*ldo
= rdev_get_drvdata(rdev
);
216 return gpio_get_value(ldo
->en_pin
->gpio
) ? 1 : 0;
218 return regulator_is_enabled_regmap(rdev
);
221 static int lp8788_ldo_enable_time(struct regulator_dev
*rdev
)
223 struct lp8788_ldo
*ldo
= rdev_get_drvdata(rdev
);
224 enum lp8788_ldo_id id
= rdev_get_id(rdev
);
225 u8 val
, addr
= LP8788_DLDO1_TIMESTEP
+ id
;
227 if (lp8788_read_byte(ldo
->lp
, addr
, &val
))
230 val
= (val
& LP8788_STARTUP_TIME_M
) >> LP8788_STARTUP_TIME_S
;
232 return ENABLE_TIME_USEC
* val
;
235 static int lp8788_ldo_fixed_get_voltage(struct regulator_dev
*rdev
)
237 enum lp8788_ldo_id id
= rdev_get_id(rdev
);
240 case ALDO2
... ALDO5
:
243 case ALDO8
... ALDO9
:
252 static struct regulator_ops lp8788_ldo_voltage_table_ops
= {
253 .list_voltage
= regulator_list_voltage_table
,
254 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
255 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
256 .enable
= lp8788_ldo_enable
,
257 .disable
= lp8788_ldo_disable
,
258 .is_enabled
= lp8788_ldo_is_enabled
,
259 .enable_time
= lp8788_ldo_enable_time
,
262 static struct regulator_ops lp8788_ldo_voltage_fixed_ops
= {
263 .get_voltage
= lp8788_ldo_fixed_get_voltage
,
264 .enable
= lp8788_ldo_enable
,
265 .disable
= lp8788_ldo_disable
,
266 .is_enabled
= lp8788_ldo_is_enabled
,
267 .enable_time
= lp8788_ldo_enable_time
,
270 static struct regulator_desc lp8788_dldo_desc
[] = {
274 .ops
= &lp8788_ldo_voltage_table_ops
,
275 .n_voltages
= ARRAY_SIZE(lp8788_dldo1239_vtbl
),
276 .volt_table
= lp8788_dldo1239_vtbl
,
277 .type
= REGULATOR_VOLTAGE
,
278 .owner
= THIS_MODULE
,
279 .vsel_reg
= LP8788_DLDO1_VOUT
,
280 .vsel_mask
= LP8788_VOUT_5BIT_M
,
281 .enable_reg
= LP8788_EN_LDO_A
,
282 .enable_mask
= LP8788_EN_DLDO1_M
,
287 .ops
= &lp8788_ldo_voltage_table_ops
,
288 .n_voltages
= ARRAY_SIZE(lp8788_dldo1239_vtbl
),
289 .volt_table
= lp8788_dldo1239_vtbl
,
290 .type
= REGULATOR_VOLTAGE
,
291 .owner
= THIS_MODULE
,
292 .vsel_reg
= LP8788_DLDO2_VOUT
,
293 .vsel_mask
= LP8788_VOUT_5BIT_M
,
294 .enable_reg
= LP8788_EN_LDO_A
,
295 .enable_mask
= LP8788_EN_DLDO2_M
,
300 .ops
= &lp8788_ldo_voltage_table_ops
,
301 .n_voltages
= ARRAY_SIZE(lp8788_dldo1239_vtbl
),
302 .volt_table
= lp8788_dldo1239_vtbl
,
303 .type
= REGULATOR_VOLTAGE
,
304 .owner
= THIS_MODULE
,
305 .vsel_reg
= LP8788_DLDO3_VOUT
,
306 .vsel_mask
= LP8788_VOUT_5BIT_M
,
307 .enable_reg
= LP8788_EN_LDO_A
,
308 .enable_mask
= LP8788_EN_DLDO3_M
,
313 .ops
= &lp8788_ldo_voltage_table_ops
,
314 .n_voltages
= ARRAY_SIZE(lp8788_dldo4_vtbl
),
315 .volt_table
= lp8788_dldo4_vtbl
,
316 .type
= REGULATOR_VOLTAGE
,
317 .owner
= THIS_MODULE
,
318 .vsel_reg
= LP8788_DLDO4_VOUT
,
319 .vsel_mask
= LP8788_VOUT_1BIT_M
,
320 .enable_reg
= LP8788_EN_LDO_A
,
321 .enable_mask
= LP8788_EN_DLDO4_M
,
326 .ops
= &lp8788_ldo_voltage_table_ops
,
327 .n_voltages
= ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl
),
328 .volt_table
= lp8788_dldo578_aldo6_vtbl
,
329 .type
= REGULATOR_VOLTAGE
,
330 .owner
= THIS_MODULE
,
331 .vsel_reg
= LP8788_DLDO5_VOUT
,
332 .vsel_mask
= LP8788_VOUT_4BIT_M
,
333 .enable_reg
= LP8788_EN_LDO_A
,
334 .enable_mask
= LP8788_EN_DLDO5_M
,
339 .ops
= &lp8788_ldo_voltage_table_ops
,
340 .n_voltages
= ARRAY_SIZE(lp8788_dldo6_vtbl
),
341 .volt_table
= lp8788_dldo6_vtbl
,
342 .type
= REGULATOR_VOLTAGE
,
343 .owner
= THIS_MODULE
,
344 .vsel_reg
= LP8788_DLDO6_VOUT
,
345 .vsel_mask
= LP8788_VOUT_3BIT_M
,
346 .enable_reg
= LP8788_EN_LDO_A
,
347 .enable_mask
= LP8788_EN_DLDO6_M
,
352 .ops
= &lp8788_ldo_voltage_table_ops
,
353 .n_voltages
= ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl
),
354 .volt_table
= lp8788_dldo578_aldo6_vtbl
,
355 .type
= REGULATOR_VOLTAGE
,
356 .owner
= THIS_MODULE
,
357 .vsel_reg
= LP8788_DLDO7_VOUT
,
358 .vsel_mask
= LP8788_VOUT_4BIT_M
,
359 .enable_reg
= LP8788_EN_LDO_A
,
360 .enable_mask
= LP8788_EN_DLDO7_M
,
365 .ops
= &lp8788_ldo_voltage_table_ops
,
366 .n_voltages
= ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl
),
367 .volt_table
= lp8788_dldo578_aldo6_vtbl
,
368 .type
= REGULATOR_VOLTAGE
,
369 .owner
= THIS_MODULE
,
370 .vsel_reg
= LP8788_DLDO8_VOUT
,
371 .vsel_mask
= LP8788_VOUT_4BIT_M
,
372 .enable_reg
= LP8788_EN_LDO_A
,
373 .enable_mask
= LP8788_EN_DLDO8_M
,
378 .ops
= &lp8788_ldo_voltage_table_ops
,
379 .n_voltages
= ARRAY_SIZE(lp8788_dldo1239_vtbl
),
380 .volt_table
= lp8788_dldo1239_vtbl
,
381 .type
= REGULATOR_VOLTAGE
,
382 .owner
= THIS_MODULE
,
383 .vsel_reg
= LP8788_DLDO9_VOUT
,
384 .vsel_mask
= LP8788_VOUT_5BIT_M
,
385 .enable_reg
= LP8788_EN_LDO_B
,
386 .enable_mask
= LP8788_EN_DLDO9_M
,
391 .ops
= &lp8788_ldo_voltage_table_ops
,
392 .n_voltages
= ARRAY_SIZE(lp8788_dldo1011_vtbl
),
393 .volt_table
= lp8788_dldo1011_vtbl
,
394 .type
= REGULATOR_VOLTAGE
,
395 .owner
= THIS_MODULE
,
396 .vsel_reg
= LP8788_DLDO10_VOUT
,
397 .vsel_mask
= LP8788_VOUT_4BIT_M
,
398 .enable_reg
= LP8788_EN_LDO_B
,
399 .enable_mask
= LP8788_EN_DLDO10_M
,
404 .ops
= &lp8788_ldo_voltage_table_ops
,
405 .n_voltages
= ARRAY_SIZE(lp8788_dldo1011_vtbl
),
406 .volt_table
= lp8788_dldo1011_vtbl
,
407 .type
= REGULATOR_VOLTAGE
,
408 .owner
= THIS_MODULE
,
409 .vsel_reg
= LP8788_DLDO11_VOUT
,
410 .vsel_mask
= LP8788_VOUT_4BIT_M
,
411 .enable_reg
= LP8788_EN_LDO_B
,
412 .enable_mask
= LP8788_EN_DLDO11_M
,
417 .ops
= &lp8788_ldo_voltage_fixed_ops
,
419 .type
= REGULATOR_VOLTAGE
,
420 .owner
= THIS_MODULE
,
421 .enable_reg
= LP8788_EN_LDO_B
,
422 .enable_mask
= LP8788_EN_DLDO12_M
,
426 static struct regulator_desc lp8788_aldo_desc
[] = {
430 .ops
= &lp8788_ldo_voltage_table_ops
,
431 .n_voltages
= ARRAY_SIZE(lp8788_aldo1_vtbl
),
432 .volt_table
= lp8788_aldo1_vtbl
,
433 .type
= REGULATOR_VOLTAGE
,
434 .owner
= THIS_MODULE
,
435 .vsel_reg
= LP8788_ALDO1_VOUT
,
436 .vsel_mask
= LP8788_VOUT_1BIT_M
,
437 .enable_reg
= LP8788_EN_LDO_B
,
438 .enable_mask
= LP8788_EN_ALDO1_M
,
443 .ops
= &lp8788_ldo_voltage_fixed_ops
,
445 .type
= REGULATOR_VOLTAGE
,
446 .owner
= THIS_MODULE
,
447 .enable_reg
= LP8788_EN_LDO_B
,
448 .enable_mask
= LP8788_EN_ALDO2_M
,
453 .ops
= &lp8788_ldo_voltage_fixed_ops
,
455 .type
= REGULATOR_VOLTAGE
,
456 .owner
= THIS_MODULE
,
457 .enable_reg
= LP8788_EN_LDO_B
,
458 .enable_mask
= LP8788_EN_ALDO3_M
,
463 .ops
= &lp8788_ldo_voltage_fixed_ops
,
465 .type
= REGULATOR_VOLTAGE
,
466 .owner
= THIS_MODULE
,
467 .enable_reg
= LP8788_EN_LDO_B
,
468 .enable_mask
= LP8788_EN_ALDO4_M
,
473 .ops
= &lp8788_ldo_voltage_fixed_ops
,
475 .type
= REGULATOR_VOLTAGE
,
476 .owner
= THIS_MODULE
,
477 .enable_reg
= LP8788_EN_LDO_C
,
478 .enable_mask
= LP8788_EN_ALDO5_M
,
483 .ops
= &lp8788_ldo_voltage_table_ops
,
484 .n_voltages
= ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl
),
485 .volt_table
= lp8788_dldo578_aldo6_vtbl
,
486 .type
= REGULATOR_VOLTAGE
,
487 .owner
= THIS_MODULE
,
488 .vsel_reg
= LP8788_ALDO6_VOUT
,
489 .vsel_mask
= LP8788_VOUT_4BIT_M
,
490 .enable_reg
= LP8788_EN_LDO_C
,
491 .enable_mask
= LP8788_EN_ALDO6_M
,
496 .ops
= &lp8788_ldo_voltage_table_ops
,
497 .n_voltages
= ARRAY_SIZE(lp8788_aldo7_vtbl
),
498 .volt_table
= lp8788_aldo7_vtbl
,
499 .type
= REGULATOR_VOLTAGE
,
500 .owner
= THIS_MODULE
,
501 .vsel_reg
= LP8788_ALDO7_VOUT
,
502 .vsel_mask
= LP8788_VOUT_3BIT_M
,
503 .enable_reg
= LP8788_EN_LDO_C
,
504 .enable_mask
= LP8788_EN_ALDO7_M
,
509 .ops
= &lp8788_ldo_voltage_fixed_ops
,
511 .type
= REGULATOR_VOLTAGE
,
512 .owner
= THIS_MODULE
,
513 .enable_reg
= LP8788_EN_LDO_C
,
514 .enable_mask
= LP8788_EN_ALDO8_M
,
519 .ops
= &lp8788_ldo_voltage_fixed_ops
,
521 .type
= REGULATOR_VOLTAGE
,
522 .owner
= THIS_MODULE
,
523 .enable_reg
= LP8788_EN_LDO_C
,
524 .enable_mask
= LP8788_EN_ALDO9_M
,
529 .ops
= &lp8788_ldo_voltage_fixed_ops
,
531 .type
= REGULATOR_VOLTAGE
,
532 .owner
= THIS_MODULE
,
533 .enable_reg
= LP8788_EN_LDO_C
,
534 .enable_mask
= LP8788_EN_ALDO10_M
,
538 static int lp8788_gpio_request_ldo_en(struct platform_device
*pdev
,
539 struct lp8788_ldo
*ldo
,
540 enum lp8788_ext_ldo_en_id id
)
542 struct device
*dev
= &pdev
->dev
;
543 struct lp8788_ldo_enable_pin
*pin
= ldo
->en_pin
;
544 int ret
, gpio
, pinstate
;
546 [EN_ALDO1
] = "LP8788_EN_ALDO1",
547 [EN_ALDO234
] = "LP8788_EN_ALDO234",
548 [EN_ALDO5
] = "LP8788_EN_ALDO5",
549 [EN_ALDO7
] = "LP8788_EN_ALDO7",
550 [EN_DLDO7
] = "LP8788_EN_DLDO7",
551 [EN_DLDO911
] = "LP8788_EN_DLDO911",
555 if (!gpio_is_valid(gpio
)) {
556 dev_err(dev
, "invalid gpio: %d\n", gpio
);
560 pinstate
= pin
->init_state
;
561 ret
= devm_gpio_request_one(dev
, gpio
, pinstate
, name
[id
]);
563 dev_warn(dev
, "gpio%d already used\n", gpio
);
570 static int lp8788_config_ldo_enable_mode(struct platform_device
*pdev
,
571 struct lp8788_ldo
*ldo
,
572 enum lp8788_ldo_id id
)
575 struct lp8788
*lp
= ldo
->lp
;
576 struct lp8788_platform_data
*pdata
= lp
->pdata
;
577 enum lp8788_ext_ldo_en_id enable_id
;
579 [EN_ALDO1
] = LP8788_EN_SEL_ALDO1_M
,
580 [EN_ALDO234
] = LP8788_EN_SEL_ALDO234_M
,
581 [EN_ALDO5
] = LP8788_EN_SEL_ALDO5_M
,
582 [EN_ALDO7
] = LP8788_EN_SEL_ALDO7_M
,
583 [EN_DLDO7
] = LP8788_EN_SEL_DLDO7_M
,
584 [EN_DLDO911
] = LP8788_EN_SEL_DLDO911_M
,
589 enable_id
= EN_DLDO7
;
593 enable_id
= EN_DLDO911
;
596 enable_id
= EN_ALDO1
;
598 case ALDO2
... ALDO4
:
599 enable_id
= EN_ALDO234
;
602 enable_id
= EN_ALDO5
;
605 enable_id
= EN_ALDO7
;
611 /* if no platform data for ldo pin, then set default enable mode */
612 if (!pdata
|| !pdata
->ldo_pin
|| !pdata
->ldo_pin
[enable_id
])
613 goto set_default_ldo_enable_mode
;
615 ldo
->en_pin
= pdata
->ldo_pin
[enable_id
];
617 ret
= lp8788_gpio_request_ldo_en(pdev
, ldo
, enable_id
);
620 goto set_default_ldo_enable_mode
;
625 set_default_ldo_enable_mode
:
626 return lp8788_update_bits(lp
, LP8788_EN_SEL
, en_mask
[enable_id
], 0);
629 static int lp8788_dldo_probe(struct platform_device
*pdev
)
631 struct lp8788
*lp
= dev_get_drvdata(pdev
->dev
.parent
);
633 struct lp8788_ldo
*ldo
;
634 struct regulator_config cfg
= { };
635 struct regulator_dev
*rdev
;
638 ldo
= devm_kzalloc(&pdev
->dev
, sizeof(struct lp8788_ldo
), GFP_KERNEL
);
643 ret
= lp8788_config_ldo_enable_mode(pdev
, ldo
, lp8788_dldo_id
[id
]);
647 cfg
.dev
= pdev
->dev
.parent
;
648 cfg
.init_data
= lp
->pdata
? lp
->pdata
->dldo_data
[id
] : NULL
;
649 cfg
.driver_data
= ldo
;
650 cfg
.regmap
= lp
->regmap
;
652 rdev
= regulator_register(&lp8788_dldo_desc
[id
], &cfg
);
655 dev_err(&pdev
->dev
, "DLDO%d regulator register err = %d\n",
660 ldo
->regulator
= rdev
;
661 platform_set_drvdata(pdev
, ldo
);
666 static int lp8788_dldo_remove(struct platform_device
*pdev
)
668 struct lp8788_ldo
*ldo
= platform_get_drvdata(pdev
);
670 platform_set_drvdata(pdev
, NULL
);
671 regulator_unregister(ldo
->regulator
);
676 static struct platform_driver lp8788_dldo_driver
= {
677 .probe
= lp8788_dldo_probe
,
678 .remove
= lp8788_dldo_remove
,
680 .name
= LP8788_DEV_DLDO
,
681 .owner
= THIS_MODULE
,
685 static int lp8788_aldo_probe(struct platform_device
*pdev
)
687 struct lp8788
*lp
= dev_get_drvdata(pdev
->dev
.parent
);
689 struct lp8788_ldo
*ldo
;
690 struct regulator_config cfg
= { };
691 struct regulator_dev
*rdev
;
694 ldo
= devm_kzalloc(&pdev
->dev
, sizeof(struct lp8788_ldo
), GFP_KERNEL
);
699 ret
= lp8788_config_ldo_enable_mode(pdev
, ldo
, lp8788_aldo_id
[id
]);
703 cfg
.dev
= pdev
->dev
.parent
;
704 cfg
.init_data
= lp
->pdata
? lp
->pdata
->aldo_data
[id
] : NULL
;
705 cfg
.driver_data
= ldo
;
706 cfg
.regmap
= lp
->regmap
;
708 rdev
= regulator_register(&lp8788_aldo_desc
[id
], &cfg
);
711 dev_err(&pdev
->dev
, "ALDO%d regulator register err = %d\n",
716 ldo
->regulator
= rdev
;
717 platform_set_drvdata(pdev
, ldo
);
722 static int lp8788_aldo_remove(struct platform_device
*pdev
)
724 struct lp8788_ldo
*ldo
= platform_get_drvdata(pdev
);
726 platform_set_drvdata(pdev
, NULL
);
727 regulator_unregister(ldo
->regulator
);
732 static struct platform_driver lp8788_aldo_driver
= {
733 .probe
= lp8788_aldo_probe
,
734 .remove
= lp8788_aldo_remove
,
736 .name
= LP8788_DEV_ALDO
,
737 .owner
= THIS_MODULE
,
741 static int __init
lp8788_ldo_init(void)
745 ret
= platform_driver_register(&lp8788_dldo_driver
);
749 return platform_driver_register(&lp8788_aldo_driver
);
751 subsys_initcall(lp8788_ldo_init
);
753 static void __exit
lp8788_ldo_exit(void)
755 platform_driver_unregister(&lp8788_aldo_driver
);
756 platform_driver_unregister(&lp8788_dldo_driver
);
758 module_exit(lp8788_ldo_exit
);
760 MODULE_DESCRIPTION("TI LP8788 LDO Driver");
761 MODULE_AUTHOR("Milo Kim");
762 MODULE_LICENSE("GPL");
763 MODULE_ALIAS("platform:lp8788-dldo");
764 MODULE_ALIAS("platform:lp8788-aldo");