?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
of: MSI: Simplify irqdomain lookup
[linux/fpc-iii.git] / drivers / mfd / 88pm860x-core.c
blob3269a9990b2422cfa05de0aa30dd163fc1b5f397
1 /*
2 * Base driver for Marvell 88PM8607
3 *
4 * Copyright (C) 2009 Marvell International Ltd.
5 *
6 * Author: Haojian Zhuang <haojian.zhuang@marvell.com>
7 *
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.
11 */
12
13 #include <linux/kernel.h>
14 #include <linux/module.h>
15 #include <linux/err.h>
16 #include <linux/i2c.h>
17 #include <linux/irq.h>
18 #include <linux/interrupt.h>
19 #include <linux/irqdomain.h>
20 #include <linux/of.h>
21 #include <linux/of_platform.h>
22 #include <linux/platform_device.h>
23 #include <linux/regmap.h>
24 #include <linux/slab.h>
25 #include <linux/mfd/core.h>
26 #include <linux/mfd/88pm860x.h>
27 #include <linux/regulator/machine.h>
28 #include <linux/power/charger-manager.h>
29
30 #define INT_STATUS_NUM 3
31
32 static struct resource bk0_resources[] = {
33 {2, 2, "duty cycle", IORESOURCE_REG, },
34 {3, 3, "always on", IORESOURCE_REG, },
35 {3, 3, "current", IORESOURCE_REG, },
36 };
37 static struct resource bk1_resources[] = {
38 {4, 4, "duty cycle", IORESOURCE_REG, },
39 {5, 5, "always on", IORESOURCE_REG, },
40 {5, 5, "current", IORESOURCE_REG, },
41 };
42 static struct resource bk2_resources[] = {
43 {6, 6, "duty cycle", IORESOURCE_REG, },
44 {7, 7, "always on", IORESOURCE_REG, },
45 {5, 5, "current", IORESOURCE_REG, },
46 };
47
48 static struct resource led0_resources[] = {
49 /* RGB1 Red LED */
50 {0xd, 0xd, "control", IORESOURCE_REG, },
51 {0xc, 0xc, "blink", IORESOURCE_REG, },
52 };
53 static struct resource led1_resources[] = {
54 /* RGB1 Green LED */
55 {0xe, 0xe, "control", IORESOURCE_REG, },
56 {0xc, 0xc, "blink", IORESOURCE_REG, },
57 };
58 static struct resource led2_resources[] = {
59 /* RGB1 Blue LED */
60 {0xf, 0xf, "control", IORESOURCE_REG, },
61 {0xc, 0xc, "blink", IORESOURCE_REG, },
62 };
63 static struct resource led3_resources[] = {
64 /* RGB2 Red LED */
65 {0x9, 0x9, "control", IORESOURCE_REG, },
66 {0x8, 0x8, "blink", IORESOURCE_REG, },
67 };
68 static struct resource led4_resources[] = {
69 /* RGB2 Green LED */
70 {0xa, 0xa, "control", IORESOURCE_REG, },
71 {0x8, 0x8, "blink", IORESOURCE_REG, },
72 };
73 static struct resource led5_resources[] = {
74 /* RGB2 Blue LED */
75 {0xb, 0xb, "control", IORESOURCE_REG, },
76 {0x8, 0x8, "blink", IORESOURCE_REG, },
77 };
78
79 static struct resource buck1_resources[] = {
80 {0x24, 0x24, "buck set", IORESOURCE_REG, },
81 };
82 static struct resource buck2_resources[] = {
83 {0x25, 0x25, "buck set", IORESOURCE_REG, },
84 };
85 static struct resource buck3_resources[] = {
86 {0x26, 0x26, "buck set", IORESOURCE_REG, },
87 };
88 static struct resource ldo1_resources[] = {
89 {0x10, 0x10, "ldo set", IORESOURCE_REG, },
90 };
91 static struct resource ldo2_resources[] = {
92 {0x11, 0x11, "ldo set", IORESOURCE_REG, },
93 };
94 static struct resource ldo3_resources[] = {
95 {0x12, 0x12, "ldo set", IORESOURCE_REG, },
96 };
97 static struct resource ldo4_resources[] = {
98 {0x13, 0x13, "ldo set", IORESOURCE_REG, },
99 };
100 static struct resource ldo5_resources[] = {
101 {0x14, 0x14, "ldo set", IORESOURCE_REG, },
102 };
103 static struct resource ldo6_resources[] = {
104 {0x15, 0x15, "ldo set", IORESOURCE_REG, },
105 };
106 static struct resource ldo7_resources[] = {
107 {0x16, 0x16, "ldo set", IORESOURCE_REG, },
108 };
109 static struct resource ldo8_resources[] = {
110 {0x17, 0x17, "ldo set", IORESOURCE_REG, },
111 };
112 static struct resource ldo9_resources[] = {
113 {0x18, 0x18, "ldo set", IORESOURCE_REG, },
114 };
115 static struct resource ldo10_resources[] = {
116 {0x19, 0x19, "ldo set", IORESOURCE_REG, },
117 };
118 static struct resource ldo12_resources[] = {
119 {0x1a, 0x1a, "ldo set", IORESOURCE_REG, },
120 };
121 static struct resource ldo_vibrator_resources[] = {
122 {0x28, 0x28, "ldo set", IORESOURCE_REG, },
123 };
124 static struct resource ldo14_resources[] = {
125 {0x1b, 0x1b, "ldo set", IORESOURCE_REG, },
126 };
127
128 static struct resource touch_resources[] = {
129 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,},
130 };
131
132 static struct resource onkey_resources[] = {
133 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,},
134 };
135
136 static struct resource codec_resources[] = {
137 /* Headset microphone insertion or removal */
138 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,},
139 /* Hook-switch press or release */
140 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,},
141 /* Headset insertion or removal */
142 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,},
143 /* Audio short */
144 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short",
145 IORESOURCE_IRQ,},
146 };
147
148 static struct resource battery_resources[] = {
149 {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,},
150 {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,},
151 };
152
153 static struct resource charger_resources[] = {
154 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,},
155 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done",
156 IORESOURCE_IRQ,},
157 {PM8607_IRQ_CHG_FAIL, PM8607_IRQ_CHG_FAIL, "charging timeout",
158 IORESOURCE_IRQ,},
159 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging fault",
160 IORESOURCE_IRQ,},
161 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature",
162 IORESOURCE_IRQ,},
163 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,},
164 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,},
165 };
166
167 static struct resource rtc_resources[] = {
168 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
169 };
170
171 static struct mfd_cell bk_devs[] = {
172 {
173 .name = "88pm860x-backlight",
174 .id = 0,
175 .num_resources = ARRAY_SIZE(bk0_resources),
176 .resources = bk0_resources,
177 }, {
178 .name = "88pm860x-backlight",
179 .id = 1,
180 .num_resources = ARRAY_SIZE(bk1_resources),
181 .resources = bk1_resources,
182 }, {
183 .name = "88pm860x-backlight",
184 .id = 2,
185 .num_resources = ARRAY_SIZE(bk2_resources),
186 .resources = bk2_resources,
187 },
188 };
189
190 static struct mfd_cell led_devs[] = {
191 {
192 .name = "88pm860x-led",
193 .id = 0,
194 .num_resources = ARRAY_SIZE(led0_resources),
195 .resources = led0_resources,
196 }, {
197 .name = "88pm860x-led",
198 .id = 1,
199 .num_resources = ARRAY_SIZE(led1_resources),
200 .resources = led1_resources,
201 }, {
202 .name = "88pm860x-led",
203 .id = 2,
204 .num_resources = ARRAY_SIZE(led2_resources),
205 .resources = led2_resources,
206 }, {
207 .name = "88pm860x-led",
208 .id = 3,
209 .num_resources = ARRAY_SIZE(led3_resources),
210 .resources = led3_resources,
211 }, {
212 .name = "88pm860x-led",
213 .id = 4,
214 .num_resources = ARRAY_SIZE(led4_resources),
215 .resources = led4_resources,
216 }, {
217 .name = "88pm860x-led",
218 .id = 5,
219 .num_resources = ARRAY_SIZE(led5_resources),
220 .resources = led5_resources,
221 },
222 };
223
224 static struct mfd_cell reg_devs[] = {
225 {
226 .name = "88pm860x-regulator",
227 .id = 0,
228 .num_resources = ARRAY_SIZE(buck1_resources),
229 .resources = buck1_resources,
230 }, {
231 .name = "88pm860x-regulator",
232 .id = 1,
233 .num_resources = ARRAY_SIZE(buck2_resources),
234 .resources = buck2_resources,
235 }, {
236 .name = "88pm860x-regulator",
237 .id = 2,
238 .num_resources = ARRAY_SIZE(buck3_resources),
239 .resources = buck3_resources,
240 }, {
241 .name = "88pm860x-regulator",
242 .id = 3,
243 .num_resources = ARRAY_SIZE(ldo1_resources),
244 .resources = ldo1_resources,
245 }, {
246 .name = "88pm860x-regulator",
247 .id = 4,
248 .num_resources = ARRAY_SIZE(ldo2_resources),
249 .resources = ldo2_resources,
250 }, {
251 .name = "88pm860x-regulator",
252 .id = 5,
253 .num_resources = ARRAY_SIZE(ldo3_resources),
254 .resources = ldo3_resources,
255 }, {
256 .name = "88pm860x-regulator",
257 .id = 6,
258 .num_resources = ARRAY_SIZE(ldo4_resources),
259 .resources = ldo4_resources,
260 }, {
261 .name = "88pm860x-regulator",
262 .id = 7,
263 .num_resources = ARRAY_SIZE(ldo5_resources),
264 .resources = ldo5_resources,
265 }, {
266 .name = "88pm860x-regulator",
267 .id = 8,
268 .num_resources = ARRAY_SIZE(ldo6_resources),
269 .resources = ldo6_resources,
270 }, {
271 .name = "88pm860x-regulator",
272 .id = 9,
273 .num_resources = ARRAY_SIZE(ldo7_resources),
274 .resources = ldo7_resources,
275 }, {
276 .name = "88pm860x-regulator",
277 .id = 10,
278 .num_resources = ARRAY_SIZE(ldo8_resources),
279 .resources = ldo8_resources,
280 }, {
281 .name = "88pm860x-regulator",
282 .id = 11,
283 .num_resources = ARRAY_SIZE(ldo9_resources),
284 .resources = ldo9_resources,
285 }, {
286 .name = "88pm860x-regulator",
287 .id = 12,
288 .num_resources = ARRAY_SIZE(ldo10_resources),
289 .resources = ldo10_resources,
290 }, {
291 .name = "88pm860x-regulator",
292 .id = 13,
293 .num_resources = ARRAY_SIZE(ldo12_resources),
294 .resources = ldo12_resources,
295 }, {
296 .name = "88pm860x-regulator",
297 .id = 14,
298 .num_resources = ARRAY_SIZE(ldo_vibrator_resources),
299 .resources = ldo_vibrator_resources,
300 }, {
301 .name = "88pm860x-regulator",
302 .id = 15,
303 .num_resources = ARRAY_SIZE(ldo14_resources),
304 .resources = ldo14_resources,
305 },
306 };
307
308 static struct mfd_cell touch_devs[] = {
309 {"88pm860x-touch", -1,},
310 };
311
312 static struct mfd_cell onkey_devs[] = {
313 {"88pm860x-onkey", -1,},
314 };
315
316 static struct mfd_cell codec_devs[] = {
317 {"88pm860x-codec", -1,},
318 };
319
320 static struct regulator_consumer_supply preg_supply[] = {
321 REGULATOR_SUPPLY("preg", "charger-manager"),
322 };
323
324 static struct regulator_init_data preg_init_data = {
325 .num_consumer_supplies = ARRAY_SIZE(preg_supply),
326 .consumer_supplies = &preg_supply[0],
327 };
328
329 static struct charger_regulator chg_desc_regulator_data[] = {
330 { .regulator_name = "preg", },
331 };
332
333 static struct mfd_cell power_devs[] = {
334 {"88pm860x-battery", -1,},
335 {"88pm860x-charger", -1,},
336 {"88pm860x-preg", -1,},
337 {"charger-manager", -1,},
338 };
339
340 static struct mfd_cell rtc_devs[] = {
341 {"88pm860x-rtc", -1,},
342 };
343
344
345 struct pm860x_irq_data {
346 int reg;
347 int mask_reg;
348 int enable; /* enable or not */
349 int offs; /* bit offset in mask register */
350 };
351
352 static struct pm860x_irq_data pm860x_irqs[] = {
353 [PM8607_IRQ_ONKEY] = {
354 .reg = PM8607_INT_STATUS1,
355 .mask_reg = PM8607_INT_MASK_1,
356 .offs = 1 << 0,
357 },
358 [PM8607_IRQ_EXTON] = {
359 .reg = PM8607_INT_STATUS1,
360 .mask_reg = PM8607_INT_MASK_1,
361 .offs = 1 << 1,
362 },
363 [PM8607_IRQ_CHG] = {
364 .reg = PM8607_INT_STATUS1,
365 .mask_reg = PM8607_INT_MASK_1,
366 .offs = 1 << 2,
367 },
368 [PM8607_IRQ_BAT] = {
369 .reg = PM8607_INT_STATUS1,
370 .mask_reg = PM8607_INT_MASK_1,
371 .offs = 1 << 3,
372 },
373 [PM8607_IRQ_RTC] = {
374 .reg = PM8607_INT_STATUS1,
375 .mask_reg = PM8607_INT_MASK_1,
376 .offs = 1 << 4,
377 },
378 [PM8607_IRQ_CC] = {
379 .reg = PM8607_INT_STATUS1,
380 .mask_reg = PM8607_INT_MASK_1,
381 .offs = 1 << 5,
382 },
383 [PM8607_IRQ_VBAT] = {
384 .reg = PM8607_INT_STATUS2,
385 .mask_reg = PM8607_INT_MASK_2,
386 .offs = 1 << 0,
387 },
388 [PM8607_IRQ_VCHG] = {
389 .reg = PM8607_INT_STATUS2,
390 .mask_reg = PM8607_INT_MASK_2,
391 .offs = 1 << 1,
392 },
393 [PM8607_IRQ_VSYS] = {
394 .reg = PM8607_INT_STATUS2,
395 .mask_reg = PM8607_INT_MASK_2,
396 .offs = 1 << 2,
397 },
398 [PM8607_IRQ_TINT] = {
399 .reg = PM8607_INT_STATUS2,
400 .mask_reg = PM8607_INT_MASK_2,
401 .offs = 1 << 3,
402 },
403 [PM8607_IRQ_GPADC0] = {
404 .reg = PM8607_INT_STATUS2,
405 .mask_reg = PM8607_INT_MASK_2,
406 .offs = 1 << 4,
407 },
408 [PM8607_IRQ_GPADC1] = {
409 .reg = PM8607_INT_STATUS2,
410 .mask_reg = PM8607_INT_MASK_2,
411 .offs = 1 << 5,
412 },
413 [PM8607_IRQ_GPADC2] = {
414 .reg = PM8607_INT_STATUS2,
415 .mask_reg = PM8607_INT_MASK_2,
416 .offs = 1 << 6,
417 },
418 [PM8607_IRQ_GPADC3] = {
419 .reg = PM8607_INT_STATUS2,
420 .mask_reg = PM8607_INT_MASK_2,
421 .offs = 1 << 7,
422 },
423 [PM8607_IRQ_AUDIO_SHORT] = {
424 .reg = PM8607_INT_STATUS3,
425 .mask_reg = PM8607_INT_MASK_3,
426 .offs = 1 << 0,
427 },
428 [PM8607_IRQ_PEN] = {
429 .reg = PM8607_INT_STATUS3,
430 .mask_reg = PM8607_INT_MASK_3,
431 .offs = 1 << 1,
432 },
433 [PM8607_IRQ_HEADSET] = {
434 .reg = PM8607_INT_STATUS3,
435 .mask_reg = PM8607_INT_MASK_3,
436 .offs = 1 << 2,
437 },
438 [PM8607_IRQ_HOOK] = {
439 .reg = PM8607_INT_STATUS3,
440 .mask_reg = PM8607_INT_MASK_3,
441 .offs = 1 << 3,
442 },
443 [PM8607_IRQ_MICIN] = {
444 .reg = PM8607_INT_STATUS3,
445 .mask_reg = PM8607_INT_MASK_3,
446 .offs = 1 << 4,
447 },
448 [PM8607_IRQ_CHG_FAIL] = {
449 .reg = PM8607_INT_STATUS3,
450 .mask_reg = PM8607_INT_MASK_3,
451 .offs = 1 << 5,
452 },
453 [PM8607_IRQ_CHG_DONE] = {
454 .reg = PM8607_INT_STATUS3,
455 .mask_reg = PM8607_INT_MASK_3,
456 .offs = 1 << 6,
457 },
458 [PM8607_IRQ_CHG_FAULT] = {
459 .reg = PM8607_INT_STATUS3,
460 .mask_reg = PM8607_INT_MASK_3,
461 .offs = 1 << 7,
462 },
463 };
464
465 static irqreturn_t pm860x_irq(int irq, void *data)
466 {
467 struct pm860x_chip *chip = data;
468 struct pm860x_irq_data *irq_data;
469 struct i2c_client *i2c;
470 int read_reg = -1, value = 0;
471 int i;
472
473 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
474 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
475 irq_data = &pm860x_irqs[i];
476 if (read_reg != irq_data->reg) {
477 read_reg = irq_data->reg;
478 value = pm860x_reg_read(i2c, irq_data->reg);
479 }
480 if (value & irq_data->enable)
481 handle_nested_irq(chip->irq_base + i);
482 }
483 return IRQ_HANDLED;
484 }
485
486 static void pm860x_irq_lock(struct irq_data *data)
487 {
488 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
489
490 mutex_lock(&chip->irq_lock);
491 }
492
493 static void pm860x_irq_sync_unlock(struct irq_data *data)
494 {
495 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
496 struct pm860x_irq_data *irq_data;
497 struct i2c_client *i2c;
498 static unsigned char cached[3] = {0x0, 0x0, 0x0};
499 unsigned char mask[3];
500 int i;
501
502 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
503 /* Load cached value. In initial, all IRQs are masked */
504 for (i = 0; i < 3; i++)
505 mask[i] = cached[i];
506 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
507 irq_data = &pm860x_irqs[i];
508 switch (irq_data->mask_reg) {
509 case PM8607_INT_MASK_1:
510 mask[0] &= ~irq_data->offs;
511 mask[0] |= irq_data->enable;
512 break;
513 case PM8607_INT_MASK_2:
514 mask[1] &= ~irq_data->offs;
515 mask[1] |= irq_data->enable;
516 break;
517 case PM8607_INT_MASK_3:
518 mask[2] &= ~irq_data->offs;
519 mask[2] |= irq_data->enable;
520 break;
521 default:
522 dev_err(chip->dev, "wrong IRQ\n");
523 break;
524 }
525 }
526 /* update mask into registers */
527 for (i = 0; i < 3; i++) {
528 if (mask[i] != cached[i]) {
529 cached[i] = mask[i];
530 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]);
531 }
532 }
533
534 mutex_unlock(&chip->irq_lock);
535 }
536
537 static void pm860x_irq_enable(struct irq_data *data)
538 {
539 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs;
540 }
541
542 static void pm860x_irq_disable(struct irq_data *data)
543 {
544 pm860x_irqs[data->hwirq].enable = 0;
545 }
546
547 static struct irq_chip pm860x_irq_chip = {
548 .name = "88pm860x",
549 .irq_bus_lock = pm860x_irq_lock,
550 .irq_bus_sync_unlock = pm860x_irq_sync_unlock,
551 .irq_enable = pm860x_irq_enable,
552 .irq_disable = pm860x_irq_disable,
553 };
554
555 static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq,
556 irq_hw_number_t hw)
557 {
558 irq_set_chip_data(virq, d->host_data);
559 irq_set_chip_and_handler(virq, &pm860x_irq_chip, handle_edge_irq);
560 irq_set_nested_thread(virq, 1);
561 irq_set_noprobe(virq);
562 return 0;
563 }
564
565 static const struct irq_domain_ops pm860x_irq_domain_ops = {
566 .map = pm860x_irq_domain_map,
567 .xlate = irq_domain_xlate_onetwocell,
568 };
569
570 static int device_irq_init(struct pm860x_chip *chip,
571 struct pm860x_platform_data *pdata)
572 {
573 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ?
574 chip->client : chip->companion;
575 unsigned char status_buf[INT_STATUS_NUM];
576 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
577 int data, mask, ret = -EINVAL;
578 int nr_irqs, irq_base = -1;
579 struct device_node *node = i2c->dev.of_node;
580
581 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR
582 | PM8607_B0_MISC1_INT_MASK;
583 data = 0;
584 chip->irq_mode = 0;
585 if (pdata && pdata->irq_mode) {
586 /*
587 * irq_mode defines the way of clearing interrupt. If it's 1,
588 * clear IRQ by write. Otherwise, clear it by read.
589 * This control bit is valid from 88PM8607 B0 steping.
590 */
591 data |= PM8607_B0_MISC1_INT_CLEAR;
592 chip->irq_mode = 1;
593 }
594 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data);
595 if (ret < 0)
596 goto out;
597
598 /* mask all IRQs */
599 memset(status_buf, 0, INT_STATUS_NUM);
600 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1,
601 INT_STATUS_NUM, status_buf);
602 if (ret < 0)
603 goto out;
604
605 if (chip->irq_mode) {
606 /* clear interrupt status by write */
607 memset(status_buf, 0xFF, INT_STATUS_NUM);
608 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1,
609 INT_STATUS_NUM, status_buf);
610 } else {
611 /* clear interrupt status by read */
612 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1,
613 INT_STATUS_NUM, status_buf);
614 }
615 if (ret < 0)
616 goto out;
617
618 mutex_init(&chip->irq_lock);
619
620 if (pdata && pdata->irq_base)
621 irq_base = pdata->irq_base;
622 nr_irqs = ARRAY_SIZE(pm860x_irqs);
623 chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0);
624 if (chip->irq_base < 0) {
625 dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n",
626 chip->irq_base);
627 ret = -EBUSY;
628 goto out;
629 }
630 irq_domain_add_legacy(node, nr_irqs, chip->irq_base, 0,
631 &pm860x_irq_domain_ops, chip);
632 chip->core_irq = i2c->irq;
633 if (!chip->core_irq)
634 goto out;
635
636 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq,
637 flags | IRQF_ONESHOT, "88pm860x", chip);
638 if (ret) {
639 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret);
640 chip->core_irq = 0;
641 }
642
643 return 0;
644 out:
645 chip->core_irq = 0;
646 return ret;
647 }
648
649 static void device_irq_exit(struct pm860x_chip *chip)
650 {
651 if (chip->core_irq)
652 free_irq(chip->core_irq, chip);
653 }
654
655 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client)
656 {
657 int ret = -EIO;
658 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
659 chip->client : chip->companion;
660
661 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
662 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
663 __func__, chip->osc_vote,
664 chip->osc_status);
665
666 mutex_lock(&chip->osc_lock);
667 /* Update voting status */
668 chip->osc_vote |= client;
669 /* If reference group is off - turn on*/
670 if (chip->osc_status != PM8606_REF_GP_OSC_ON) {
671 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
672 /* Enable Reference group Vsys */
673 if (pm860x_set_bits(i2c, PM8606_VSYS,
674 PM8606_VSYS_EN, PM8606_VSYS_EN))
675 goto out;
676
677 /*Enable Internal Oscillator */
678 if (pm860x_set_bits(i2c, PM8606_MISC,
679 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN))
680 goto out;
681 /* Update status (only if writes succeed) */
682 chip->osc_status = PM8606_REF_GP_OSC_ON;
683 }
684 mutex_unlock(&chip->osc_lock);
685
686 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
687 __func__, chip->osc_vote,
688 chip->osc_status, ret);
689 return 0;
690 out:
691 mutex_unlock(&chip->osc_lock);
692 return ret;
693 }
694 EXPORT_SYMBOL(pm8606_osc_enable);
695
696 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client)
697 {
698 int ret = -EIO;
699 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
700 chip->client : chip->companion;
701
702 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
703 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
704 __func__, chip->osc_vote,
705 chip->osc_status);
706
707 mutex_lock(&chip->osc_lock);
708 /*Update voting status */
709 chip->osc_vote &= ~(client);
710 /* If reference group is off and this is the last client to release
711 * - turn off */
712 if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) &&
713 (chip->osc_vote == REF_GP_NO_CLIENTS)) {
714 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
715 /* Disable Reference group Vsys */
716 if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0))
717 goto out;
718 /* Disable Internal Oscillator */
719 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0))
720 goto out;
721 chip->osc_status = PM8606_REF_GP_OSC_OFF;
722 }
723 mutex_unlock(&chip->osc_lock);
724
725 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
726 __func__, chip->osc_vote,
727 chip->osc_status, ret);
728 return 0;
729 out:
730 mutex_unlock(&chip->osc_lock);
731 return ret;
732 }
733 EXPORT_SYMBOL(pm8606_osc_disable);
734
735 static void device_osc_init(struct i2c_client *i2c)
736 {
737 struct pm860x_chip *chip = i2c_get_clientdata(i2c);
738
739 mutex_init(&chip->osc_lock);
740 /* init portofino reference group voting and status */
741 /* Disable Reference group Vsys */
742 pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0);
743 /* Disable Internal Oscillator */
744 pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0);
745
746 chip->osc_vote = REF_GP_NO_CLIENTS;
747 chip->osc_status = PM8606_REF_GP_OSC_OFF;
748 }
749
750 static void device_bk_init(struct pm860x_chip *chip,
751 struct pm860x_platform_data *pdata)
752 {
753 int ret, i;
754
755 if (pdata && pdata->backlight) {
756 if (pdata->num_backlights > ARRAY_SIZE(bk_devs))
757 pdata->num_backlights = ARRAY_SIZE(bk_devs);
758 for (i = 0; i < pdata->num_backlights; i++) {
759 bk_devs[i].platform_data = &pdata->backlight[i];
760 bk_devs[i].pdata_size =
761 sizeof(struct pm860x_backlight_pdata);
762 }
763 }
764 ret = mfd_add_devices(chip->dev, 0, bk_devs,
765 ARRAY_SIZE(bk_devs), NULL, 0, NULL);
766 if (ret < 0)
767 dev_err(chip->dev, "Failed to add backlight subdev\n");
768 }
769
770 static void device_led_init(struct pm860x_chip *chip,
771 struct pm860x_platform_data *pdata)
772 {
773 int ret, i;
774
775 if (pdata && pdata->led) {
776 if (pdata->num_leds > ARRAY_SIZE(led_devs))
777 pdata->num_leds = ARRAY_SIZE(led_devs);
778 for (i = 0; i < pdata->num_leds; i++) {
779 led_devs[i].platform_data = &pdata->led[i];
780 led_devs[i].pdata_size =
781 sizeof(struct pm860x_led_pdata);
782 }
783 }
784 ret = mfd_add_devices(chip->dev, 0, led_devs,
785 ARRAY_SIZE(led_devs), NULL, 0, NULL);
786 if (ret < 0) {
787 dev_err(chip->dev, "Failed to add led subdev\n");
788 return;
789 }
790 }
791
792 static void device_regulator_init(struct pm860x_chip *chip,
793 struct pm860x_platform_data *pdata)
794 {
795 int ret;
796
797 if (pdata == NULL)
798 return;
799 if (pdata->buck1) {
800 reg_devs[0].platform_data = pdata->buck1;
801 reg_devs[0].pdata_size = sizeof(struct regulator_init_data);
802 }
803 if (pdata->buck2) {
804 reg_devs[1].platform_data = pdata->buck2;
805 reg_devs[1].pdata_size = sizeof(struct regulator_init_data);
806 }
807 if (pdata->buck3) {
808 reg_devs[2].platform_data = pdata->buck3;
809 reg_devs[2].pdata_size = sizeof(struct regulator_init_data);
810 }
811 if (pdata->ldo1) {
812 reg_devs[3].platform_data = pdata->ldo1;
813 reg_devs[3].pdata_size = sizeof(struct regulator_init_data);
814 }
815 if (pdata->ldo2) {
816 reg_devs[4].platform_data = pdata->ldo2;
817 reg_devs[4].pdata_size = sizeof(struct regulator_init_data);
818 }
819 if (pdata->ldo3) {
820 reg_devs[5].platform_data = pdata->ldo3;
821 reg_devs[5].pdata_size = sizeof(struct regulator_init_data);
822 }
823 if (pdata->ldo4) {
824 reg_devs[6].platform_data = pdata->ldo4;
825 reg_devs[6].pdata_size = sizeof(struct regulator_init_data);
826 }
827 if (pdata->ldo5) {
828 reg_devs[7].platform_data = pdata->ldo5;
829 reg_devs[7].pdata_size = sizeof(struct regulator_init_data);
830 }
831 if (pdata->ldo6) {
832 reg_devs[8].platform_data = pdata->ldo6;
833 reg_devs[8].pdata_size = sizeof(struct regulator_init_data);
834 }
835 if (pdata->ldo7) {
836 reg_devs[9].platform_data = pdata->ldo7;
837 reg_devs[9].pdata_size = sizeof(struct regulator_init_data);
838 }
839 if (pdata->ldo8) {
840 reg_devs[10].platform_data = pdata->ldo8;
841 reg_devs[10].pdata_size = sizeof(struct regulator_init_data);
842 }
843 if (pdata->ldo9) {
844 reg_devs[11].platform_data = pdata->ldo9;
845 reg_devs[11].pdata_size = sizeof(struct regulator_init_data);
846 }
847 if (pdata->ldo10) {
848 reg_devs[12].platform_data = pdata->ldo10;
849 reg_devs[12].pdata_size = sizeof(struct regulator_init_data);
850 }
851 if (pdata->ldo12) {
852 reg_devs[13].platform_data = pdata->ldo12;
853 reg_devs[13].pdata_size = sizeof(struct regulator_init_data);
854 }
855 if (pdata->ldo_vibrator) {
856 reg_devs[14].platform_data = pdata->ldo_vibrator;
857 reg_devs[14].pdata_size = sizeof(struct regulator_init_data);
858 }
859 if (pdata->ldo14) {
860 reg_devs[15].platform_data = pdata->ldo14;
861 reg_devs[15].pdata_size = sizeof(struct regulator_init_data);
862 }
863 ret = mfd_add_devices(chip->dev, 0, reg_devs,
864 ARRAY_SIZE(reg_devs), NULL, 0, NULL);
865 if (ret < 0) {
866 dev_err(chip->dev, "Failed to add regulator subdev\n");
867 return;
868 }
869 }
870
871 static void device_rtc_init(struct pm860x_chip *chip,
872 struct pm860x_platform_data *pdata)
873 {
874 int ret;
875
876 if (!pdata)
877 return;
878
879 rtc_devs[0].platform_data = pdata->rtc;
880 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata);
881 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources);
882 rtc_devs[0].resources = &rtc_resources[0];
883 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
884 ARRAY_SIZE(rtc_devs), &rtc_resources[0],
885 chip->irq_base, NULL);
886 if (ret < 0)
887 dev_err(chip->dev, "Failed to add rtc subdev\n");
888 }
889
890 static void device_touch_init(struct pm860x_chip *chip,
891 struct pm860x_platform_data *pdata)
892 {
893 int ret;
894
895 if (pdata == NULL)
896 return;
897
898 touch_devs[0].platform_data = pdata->touch;
899 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata);
900 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources);
901 touch_devs[0].resources = &touch_resources[0];
902 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
903 ARRAY_SIZE(touch_devs), &touch_resources[0],
904 chip->irq_base, NULL);
905 if (ret < 0)
906 dev_err(chip->dev, "Failed to add touch subdev\n");
907 }
908
909 static void device_power_init(struct pm860x_chip *chip,
910 struct pm860x_platform_data *pdata)
911 {
912 int ret;
913
914 if (pdata == NULL)
915 return;
916
917 power_devs[0].platform_data = pdata->power;
918 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata);
919 power_devs[0].num_resources = ARRAY_SIZE(battery_resources);
920 power_devs[0].resources = &battery_resources[0],
921 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1,
922 &battery_resources[0], chip->irq_base, NULL);
923 if (ret < 0)
924 dev_err(chip->dev, "Failed to add battery subdev\n");
925
926 power_devs[1].platform_data = pdata->power;
927 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata);
928 power_devs[1].num_resources = ARRAY_SIZE(charger_resources);
929 power_devs[1].resources = &charger_resources[0],
930 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1,
931 &charger_resources[0], chip->irq_base, NULL);
932 if (ret < 0)
933 dev_err(chip->dev, "Failed to add charger subdev\n");
934
935 power_devs[2].platform_data = &preg_init_data;
936 power_devs[2].pdata_size = sizeof(struct regulator_init_data);
937 ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1,
938 NULL, chip->irq_base, NULL);
939 if (ret < 0)
940 dev_err(chip->dev, "Failed to add preg subdev\n");
941
942 if (pdata->chg_desc) {
943 pdata->chg_desc->charger_regulators =
944 &chg_desc_regulator_data[0];
945 pdata->chg_desc->num_charger_regulators =
946 ARRAY_SIZE(chg_desc_regulator_data),
947 power_devs[3].platform_data = pdata->chg_desc;
948 power_devs[3].pdata_size = sizeof(*pdata->chg_desc);
949 ret = mfd_add_devices(chip->dev, 0, &power_devs[3], 1,
950 NULL, chip->irq_base, NULL);
951 if (ret < 0)
952 dev_err(chip->dev, "Failed to add chg-manager subdev\n");
953 }
954 }
955
956 static void device_onkey_init(struct pm860x_chip *chip,
957 struct pm860x_platform_data *pdata)
958 {
959 int ret;
960
961 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources);
962 onkey_devs[0].resources = &onkey_resources[0],
963 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
964 ARRAY_SIZE(onkey_devs), &onkey_resources[0],
965 chip->irq_base, NULL);
966 if (ret < 0)
967 dev_err(chip->dev, "Failed to add onkey subdev\n");
968 }
969
970 static void device_codec_init(struct pm860x_chip *chip,
971 struct pm860x_platform_data *pdata)
972 {
973 int ret;
974
975 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
976 codec_devs[0].resources = &codec_resources[0],
977 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
978 ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
979 NULL);
980 if (ret < 0)
981 dev_err(chip->dev, "Failed to add codec subdev\n");
982 }
983
984 static void device_8607_init(struct pm860x_chip *chip,
985 struct i2c_client *i2c,
986 struct pm860x_platform_data *pdata)
987 {
988 int data, ret;
989
990 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID);
991 if (ret < 0) {
992 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
993 goto out;
994 }
995 switch (ret & PM8607_VERSION_MASK) {
996 case 0x40:
997 case 0x50:
998 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
999 ret);
1000 break;
1001 default:
1002 dev_err(chip->dev,
1003 "Failed to detect Marvell 88PM8607. Chip ID: %02x\n",
1004 ret);
1005 goto out;
1006 }
1007
1008 ret = pm860x_reg_read(i2c, PM8607_BUCK3);
1009 if (ret < 0) {
1010 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
1011 goto out;
1012 }
1013 if (ret & PM8607_BUCK3_DOUBLE)
1014 chip->buck3_double = 1;
1015
1016 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1);
1017 if (ret < 0) {
1018 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
1019 goto out;
1020 }
1021
1022 if (pdata && (pdata->i2c_port == PI2C_PORT))
1023 data = PM8607_B0_MISC1_PI2C;
1024 else
1025 data = 0;
1026 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data);
1027 if (ret < 0) {
1028 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret);
1029 goto out;
1030 }
1031
1032 ret = device_irq_init(chip, pdata);
1033 if (ret < 0)
1034 goto out;
1035
1036 device_regulator_init(chip, pdata);
1037 device_rtc_init(chip, pdata);
1038 device_onkey_init(chip, pdata);
1039 device_touch_init(chip, pdata);
1040 device_power_init(chip, pdata);
1041 device_codec_init(chip, pdata);
1042 out:
1043 return;
1044 }
1045
1046 static void device_8606_init(struct pm860x_chip *chip,
1047 struct i2c_client *i2c,
1048 struct pm860x_platform_data *pdata)
1049 {
1050 device_osc_init(i2c);
1051 device_bk_init(chip, pdata);
1052 device_led_init(chip, pdata);
1053 }
1054
1055 static int pm860x_device_init(struct pm860x_chip *chip,
1056 struct pm860x_platform_data *pdata)
1057 {
1058 chip->core_irq = 0;
1059
1060 switch (chip->id) {
1061 case CHIP_PM8606:
1062 device_8606_init(chip, chip->client, pdata);
1063 break;
1064 case CHIP_PM8607:
1065 device_8607_init(chip, chip->client, pdata);
1066 break;
1067 }
1068
1069 if (chip->companion) {
1070 switch (chip->id) {
1071 case CHIP_PM8607:
1072 device_8606_init(chip, chip->companion, pdata);
1073 break;
1074 case CHIP_PM8606:
1075 device_8607_init(chip, chip->companion, pdata);
1076 break;
1077 }
1078 }
1079
1080 return 0;
1081 }
1082
1083 static void pm860x_device_exit(struct pm860x_chip *chip)
1084 {
1085 device_irq_exit(chip);
1086 mfd_remove_devices(chip->dev);
1087 }
1088
1089 static int verify_addr(struct i2c_client *i2c)
1090 {
1091 unsigned short addr_8607[] = {0x30, 0x34};
1092 unsigned short addr_8606[] = {0x10, 0x11};
1093 int size, i;
1094
1095 if (i2c == NULL)
1096 return 0;
1097 size = ARRAY_SIZE(addr_8606);
1098 for (i = 0; i < size; i++) {
1099 if (i2c->addr == *(addr_8606 + i))
1100 return CHIP_PM8606;
1101 }
1102 size = ARRAY_SIZE(addr_8607);
1103 for (i = 0; i < size; i++) {
1104 if (i2c->addr == *(addr_8607 + i))
1105 return CHIP_PM8607;
1106 }
1107 return 0;
1108 }
1109
1110 static const struct regmap_config pm860x_regmap_config = {
1111 .reg_bits = 8,
1112 .val_bits = 8,
1113 };
1114
1115 static int pm860x_dt_init(struct device_node *np,
1116 struct device *dev,
1117 struct pm860x_platform_data *pdata)
1118 {
1119 int ret;
1120
1121 if (of_get_property(np, "marvell,88pm860x-irq-read-clr", NULL))
1122 pdata->irq_mode = 1;
1123 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr",
1124 &pdata->companion_addr);
1125 if (ret) {
1126 dev_err(dev,
1127 "Not found \"marvell,88pm860x-slave-addr\" property\n");
1128 pdata->companion_addr = 0;
1129 }
1130 return 0;
1131 }
1132
1133 static int pm860x_probe(struct i2c_client *client,
1134 const struct i2c_device_id *id)
1135 {
1136 struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev);
1137 struct device_node *node = client->dev.of_node;
1138 struct pm860x_chip *chip;
1139 int ret;
1140
1141 if (node && !pdata) {
1142 /* parse DT to get platform data */
1143 pdata = devm_kzalloc(&client->dev,
1144 sizeof(struct pm860x_platform_data),
1145 GFP_KERNEL);
1146 if (!pdata)
1147 return -ENOMEM;
1148 ret = pm860x_dt_init(node, &client->dev, pdata);
1149 if (ret)
1150 return ret;
1151 } else if (!pdata) {
1152 pr_info("No platform data in %s!\n", __func__);
1153 return -EINVAL;
1154 }
1155
1156 chip = devm_kzalloc(&client->dev,
1157 sizeof(struct pm860x_chip), GFP_KERNEL);
1158 if (chip == NULL)
1159 return -ENOMEM;
1160
1161 chip->id = verify_addr(client);
1162 chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config);
1163 if (IS_ERR(chip->regmap)) {
1164 ret = PTR_ERR(chip->regmap);
1165 dev_err(&client->dev, "Failed to allocate register map: %d\n",
1166 ret);
1167 return ret;
1168 }
1169 chip->client = client;
1170 i2c_set_clientdata(client, chip);
1171 chip->dev = &client->dev;
1172 dev_set_drvdata(chip->dev, chip);
1173
1174 /*
1175 * Both client and companion client shares same platform driver.
1176 * Driver distinguishes them by pdata->companion_addr.
1177 * pdata->companion_addr is only assigned if companion chip exists.
1178 * At the same time, the companion_addr shouldn't equal to client
1179 * address.
1180 */
1181 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) {
1182 chip->companion_addr = pdata->companion_addr;
1183 chip->companion = i2c_new_dummy(chip->client->adapter,
1184 chip->companion_addr);
1185 if (!chip->companion) {
1186 dev_err(&client->dev,
1187 "Failed to allocate I2C companion device\n");
1188 return -ENODEV;
1189 }
1190 chip->regmap_companion = regmap_init_i2c(chip->companion,
1191 &pm860x_regmap_config);
1192 if (IS_ERR(chip->regmap_companion)) {
1193 ret = PTR_ERR(chip->regmap_companion);
1194 dev_err(&chip->companion->dev,
1195 "Failed to allocate register map: %d\n", ret);
1196 i2c_unregister_device(chip->companion);
1197 return ret;
1198 }
1199 i2c_set_clientdata(chip->companion, chip);
1200 }
1201
1202 pm860x_device_init(chip, pdata);
1203 return 0;
1204 }
1205
1206 static int pm860x_remove(struct i2c_client *client)
1207 {
1208 struct pm860x_chip *chip = i2c_get_clientdata(client);
1209
1210 pm860x_device_exit(chip);
1211 if (chip->companion) {
1212 regmap_exit(chip->regmap_companion);
1213 i2c_unregister_device(chip->companion);
1214 }
1215 return 0;
1216 }
1217
1218 #ifdef CONFIG_PM_SLEEP
1219 static int pm860x_suspend(struct device *dev)
1220 {
1221 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1222 struct pm860x_chip *chip = i2c_get_clientdata(client);
1223
1224 if (device_may_wakeup(dev) && chip->wakeup_flag)
1225 enable_irq_wake(chip->core_irq);
1226 return 0;
1227 }
1228
1229 static int pm860x_resume(struct device *dev)
1230 {
1231 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1232 struct pm860x_chip *chip = i2c_get_clientdata(client);
1233
1234 if (device_may_wakeup(dev) && chip->wakeup_flag)
1235 disable_irq_wake(chip->core_irq);
1236 return 0;
1237 }
1238 #endif
1239
1240 static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
1241
1242 static const struct i2c_device_id pm860x_id_table[] = {
1243 { "88PM860x", 0 },
1244 {}
1245 };
1246 MODULE_DEVICE_TABLE(i2c, pm860x_id_table);
1247
1248 static const struct of_device_id pm860x_dt_ids[] = {
1249 { .compatible = "marvell,88pm860x", },
1250 {},
1251 };
1252 MODULE_DEVICE_TABLE(of, pm860x_dt_ids);
1253
1254 static struct i2c_driver pm860x_driver = {
1255 .driver = {
1256 .name = "88PM860x",
1257 .pm = &pm860x_pm_ops,
1258 .of_match_table = pm860x_dt_ids,
1259 },
1260 .probe = pm860x_probe,
1261 .remove = pm860x_remove,
1262 .id_table = pm860x_id_table,
1263 };
1264
1265 static int __init pm860x_i2c_init(void)
1266 {
1267 int ret;
1268 ret = i2c_add_driver(&pm860x_driver);
1269 if (ret != 0)
1270 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);
1271 return ret;
1272 }
1273 subsys_initcall(pm860x_i2c_init);
1274
1275 static void __exit pm860x_i2c_exit(void)
1276 {
1277 i2c_del_driver(&pm860x_driver);
1278 }
1279 module_exit(pm860x_i2c_exit);
1280
1281 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
1282 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
1283 MODULE_LICENSE("GPL");
Linux with added FPC-III support