1 /*
2 * Base driver for Marvell 88PM8607
3 *
4 * Copyright (C) 2009 Marvell International Ltd.
5 * Haojian Zhuang <haojian.zhuang@marvell.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/i2c.h>
15 #include <linux/irq.h>
16 #include <linux/interrupt.h>
17 #include <linux/platform_device.h>
18 #include <linux/mfd/core.h>
19 #include <linux/mfd/88pm860x.h>
20 #include <linux/regulator/machine.h>
21
22 #define INT_STATUS_NUM 3
23
24 static struct resource bk_resources[] __devinitdata = {
25 {PM8606_BACKLIGHT1, PM8606_BACKLIGHT1, "backlight-0", IORESOURCE_IO,},
26 {PM8606_BACKLIGHT2, PM8606_BACKLIGHT2, "backlight-1", IORESOURCE_IO,},
27 {PM8606_BACKLIGHT3, PM8606_BACKLIGHT3, "backlight-2", IORESOURCE_IO,},
28 };
29
30 static struct resource led_resources[] __devinitdata = {
31 {PM8606_LED1_RED, PM8606_LED1_RED, "led0-red", IORESOURCE_IO,},
32 {PM8606_LED1_GREEN, PM8606_LED1_GREEN, "led0-green", IORESOURCE_IO,},
33 {PM8606_LED1_BLUE, PM8606_LED1_BLUE, "led0-blue", IORESOURCE_IO,},
34 {PM8606_LED2_RED, PM8606_LED2_RED, "led1-red", IORESOURCE_IO,},
35 {PM8606_LED2_GREEN, PM8606_LED2_GREEN, "led1-green", IORESOURCE_IO,},
36 {PM8606_LED2_BLUE, PM8606_LED2_BLUE, "led1-blue", IORESOURCE_IO,},
37 };
38
39 static struct resource regulator_resources[] __devinitdata = {
40 {PM8607_ID_BUCK1, PM8607_ID_BUCK1, "buck-1", IORESOURCE_IO,},
41 {PM8607_ID_BUCK2, PM8607_ID_BUCK2, "buck-2", IORESOURCE_IO,},
42 {PM8607_ID_BUCK3, PM8607_ID_BUCK3, "buck-3", IORESOURCE_IO,},
43 {PM8607_ID_LDO1, PM8607_ID_LDO1, "ldo-01", IORESOURCE_IO,},
44 {PM8607_ID_LDO2, PM8607_ID_LDO2, "ldo-02", IORESOURCE_IO,},
45 {PM8607_ID_LDO3, PM8607_ID_LDO3, "ldo-03", IORESOURCE_IO,},
46 {PM8607_ID_LDO4, PM8607_ID_LDO4, "ldo-04", IORESOURCE_IO,},
47 {PM8607_ID_LDO5, PM8607_ID_LDO5, "ldo-05", IORESOURCE_IO,},
48 {PM8607_ID_LDO6, PM8607_ID_LDO6, "ldo-06", IORESOURCE_IO,},
49 {PM8607_ID_LDO7, PM8607_ID_LDO7, "ldo-07", IORESOURCE_IO,},
50 {PM8607_ID_LDO8, PM8607_ID_LDO8, "ldo-08", IORESOURCE_IO,},
51 {PM8607_ID_LDO9, PM8607_ID_LDO9, "ldo-09", IORESOURCE_IO,},
52 {PM8607_ID_LDO10, PM8607_ID_LDO10, "ldo-10", IORESOURCE_IO,},
53 {PM8607_ID_LDO11, PM8607_ID_LDO11, "ldo-11", IORESOURCE_IO,},
54 {PM8607_ID_LDO12, PM8607_ID_LDO12, "ldo-12", IORESOURCE_IO,},
55 {PM8607_ID_LDO13, PM8607_ID_LDO13, "ldo-13", IORESOURCE_IO,},
56 {PM8607_ID_LDO14, PM8607_ID_LDO14, "ldo-14", IORESOURCE_IO,},
57 {PM8607_ID_LDO15, PM8607_ID_LDO15, "ldo-15", IORESOURCE_IO,},
58 };
59
60 static struct resource touch_resources[] __devinitdata = {
61 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,},
62 };
63
64 static struct resource onkey_resources[] __devinitdata = {
65 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,},
66 };
67
68 static struct resource codec_resources[] __devinitdata = {
69 /* Headset microphone insertion or removal */
70 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,},
71 /* Hook-switch press or release */
72 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,},
73 /* Headset insertion or removal */
74 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,},
75 /* Audio short */
76 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short", IORESOURCE_IRQ,},
77 };
78
79 static struct resource battery_resources[] __devinitdata = {
80 {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,},
81 {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,},
82 };
83
84 static struct resource charger_resources[] __devinitdata = {
85 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,},
86 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done", IORESOURCE_IRQ,},
87 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging timeout", IORESOURCE_IRQ,},
88 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature", IORESOURCE_IRQ,},
89 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,},
90 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,},
91 };
92
93 static struct resource rtc_resources[] __devinitdata = {
94 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
95 };
96
97 static struct mfd_cell bk_devs[] = {
98 {"88pm860x-backlight", 0,},
99 {"88pm860x-backlight", 1,},
100 {"88pm860x-backlight", 2,},
101 };
102
103 static struct mfd_cell led_devs[] = {
104 {"88pm860x-led", 0,},
105 {"88pm860x-led", 1,},
106 {"88pm860x-led", 2,},
107 {"88pm860x-led", 3,},
108 {"88pm860x-led", 4,},
109 {"88pm860x-led", 5,},
110 };
111
112 static struct mfd_cell regulator_devs[] = {
113 {"88pm860x-regulator", 0,},
114 {"88pm860x-regulator", 1,},
115 {"88pm860x-regulator", 2,},
116 {"88pm860x-regulator", 3,},
117 {"88pm860x-regulator", 4,},
118 {"88pm860x-regulator", 5,},
119 {"88pm860x-regulator", 6,},
120 {"88pm860x-regulator", 7,},
121 {"88pm860x-regulator", 8,},
122 {"88pm860x-regulator", 9,},
123 {"88pm860x-regulator", 10,},
124 {"88pm860x-regulator", 11,},
125 {"88pm860x-regulator", 12,},
126 {"88pm860x-regulator", 13,},
127 {"88pm860x-regulator", 14,},
128 {"88pm860x-regulator", 15,},
129 {"88pm860x-regulator", 16,},
130 {"88pm860x-regulator", 17,},
131 };
132
133 static struct mfd_cell touch_devs[] = {
134 {"88pm860x-touch", -1,},
135 };
136
137 static struct mfd_cell onkey_devs[] = {
138 {"88pm860x-onkey", -1,},
139 };
140
141 static struct mfd_cell codec_devs[] = {
142 {"88pm860x-codec", -1,},
143 };
144
145 static struct mfd_cell power_devs[] = {
146 {"88pm860x-battery", -1,},
147 {"88pm860x-charger", -1,},
148 };
149
150 static struct mfd_cell rtc_devs[] = {
151 {"88pm860x-rtc", -1,},
152 };
153
154
155 struct pm860x_irq_data {
156 int reg;
157 int mask_reg;
158 int enable; /* enable or not */
159 int offs; /* bit offset in mask register */
160 };
161
162 static struct pm860x_irq_data pm860x_irqs[] = {
163 [PM8607_IRQ_ONKEY] = {
164 .reg = PM8607_INT_STATUS1,
165 .mask_reg = PM8607_INT_MASK_1,
166 .offs = 1 << 0,
167 },
168 [PM8607_IRQ_EXTON] = {
169 .reg = PM8607_INT_STATUS1,
170 .mask_reg = PM8607_INT_MASK_1,
171 .offs = 1 << 1,
172 },
173 [PM8607_IRQ_CHG] = {
174 .reg = PM8607_INT_STATUS1,
175 .mask_reg = PM8607_INT_MASK_1,
176 .offs = 1 << 2,
177 },
178 [PM8607_IRQ_BAT] = {
179 .reg = PM8607_INT_STATUS1,
180 .mask_reg = PM8607_INT_MASK_1,
181 .offs = 1 << 3,
182 },
183 [PM8607_IRQ_RTC] = {
184 .reg = PM8607_INT_STATUS1,
185 .mask_reg = PM8607_INT_MASK_1,
186 .offs = 1 << 4,
187 },
188 [PM8607_IRQ_CC] = {
189 .reg = PM8607_INT_STATUS1,
190 .mask_reg = PM8607_INT_MASK_1,
191 .offs = 1 << 5,
192 },
193 [PM8607_IRQ_VBAT] = {
194 .reg = PM8607_INT_STATUS2,
195 .mask_reg = PM8607_INT_MASK_2,
196 .offs = 1 << 0,
197 },
198 [PM8607_IRQ_VCHG] = {
199 .reg = PM8607_INT_STATUS2,
200 .mask_reg = PM8607_INT_MASK_2,
201 .offs = 1 << 1,
202 },
203 [PM8607_IRQ_VSYS] = {
204 .reg = PM8607_INT_STATUS2,
205 .mask_reg = PM8607_INT_MASK_2,
206 .offs = 1 << 2,
207 },
208 [PM8607_IRQ_TINT] = {
209 .reg = PM8607_INT_STATUS2,
210 .mask_reg = PM8607_INT_MASK_2,
211 .offs = 1 << 3,
212 },
213 [PM8607_IRQ_GPADC0] = {
214 .reg = PM8607_INT_STATUS2,
215 .mask_reg = PM8607_INT_MASK_2,
216 .offs = 1 << 4,
217 },
218 [PM8607_IRQ_GPADC1] = {
219 .reg = PM8607_INT_STATUS2,
220 .mask_reg = PM8607_INT_MASK_2,
221 .offs = 1 << 5,
222 },
223 [PM8607_IRQ_GPADC2] = {
224 .reg = PM8607_INT_STATUS2,
225 .mask_reg = PM8607_INT_MASK_2,
226 .offs = 1 << 6,
227 },
228 [PM8607_IRQ_GPADC3] = {
229 .reg = PM8607_INT_STATUS2,
230 .mask_reg = PM8607_INT_MASK_2,
231 .offs = 1 << 7,
232 },
233 [PM8607_IRQ_AUDIO_SHORT] = {
234 .reg = PM8607_INT_STATUS3,
235 .mask_reg = PM8607_INT_MASK_3,
236 .offs = 1 << 0,
237 },
238 [PM8607_IRQ_PEN] = {
239 .reg = PM8607_INT_STATUS3,
240 .mask_reg = PM8607_INT_MASK_3,
241 .offs = 1 << 1,
242 },
243 [PM8607_IRQ_HEADSET] = {
244 .reg = PM8607_INT_STATUS3,
245 .mask_reg = PM8607_INT_MASK_3,
246 .offs = 1 << 2,
247 },
248 [PM8607_IRQ_HOOK] = {
249 .reg = PM8607_INT_STATUS3,
250 .mask_reg = PM8607_INT_MASK_3,
251 .offs = 1 << 3,
252 },
253 [PM8607_IRQ_MICIN] = {
254 .reg = PM8607_INT_STATUS3,
255 .mask_reg = PM8607_INT_MASK_3,
256 .offs = 1 << 4,
257 },
258 [PM8607_IRQ_CHG_FAIL] = {
259 .reg = PM8607_INT_STATUS3,
260 .mask_reg = PM8607_INT_MASK_3,
261 .offs = 1 << 5,
262 },
263 [PM8607_IRQ_CHG_DONE] = {
264 .reg = PM8607_INT_STATUS3,
265 .mask_reg = PM8607_INT_MASK_3,
266 .offs = 1 << 6,
267 },
268 [PM8607_IRQ_CHG_FAULT] = {
269 .reg = PM8607_INT_STATUS3,
270 .mask_reg = PM8607_INT_MASK_3,
271 .offs = 1 << 7,
272 },
273 };
274
pm860x_irq(int irq,void * data)275 static irqreturn_t pm860x_irq(int irq, void *data)
276 {
277 struct pm860x_chip *chip = data;
278 struct pm860x_irq_data *irq_data;
279 struct i2c_client *i2c;
280 int read_reg = -1, value = 0;
281 int i;
282
283 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
284 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
285 irq_data = &pm860x_irqs[i];
286 if (read_reg != irq_data->reg) {
287 read_reg = irq_data->reg;
288 value = pm860x_reg_read(i2c, irq_data->reg);
289 }
290 if (value & irq_data->enable)
291 handle_nested_irq(chip->irq_base + i);
292 }
293 return IRQ_HANDLED;
294 }
295
pm860x_irq_lock(struct irq_data * data)296 static void pm860x_irq_lock(struct irq_data *data)
297 {
298 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
299
300 mutex_lock(&chip->irq_lock);
301 }
302
pm860x_irq_sync_unlock(struct irq_data * data)303 static void pm860x_irq_sync_unlock(struct irq_data *data)
304 {
305 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
306 struct pm860x_irq_data *irq_data;
307 struct i2c_client *i2c;
308 static unsigned char cached[3] = {0x0, 0x0, 0x0};
309 unsigned char mask[3];
310 int i;
311
312 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
313 /* Load cached value. In initial, all IRQs are masked */
314 for (i = 0; i < 3; i++)
315 mask[i] = cached[i];
316 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
317 irq_data = &pm860x_irqs[i];
318 switch (irq_data->mask_reg) {
319 case PM8607_INT_MASK_1:
320 mask[0] &= ~irq_data->offs;
321 mask[0] |= irq_data->enable;
322 break;
323 case PM8607_INT_MASK_2:
324 mask[1] &= ~irq_data->offs;
325 mask[1] |= irq_data->enable;
326 break;
327 case PM8607_INT_MASK_3:
328 mask[2] &= ~irq_data->offs;
329 mask[2] |= irq_data->enable;
330 break;
331 default:
332 dev_err(chip->dev, "wrong IRQ\n");
333 break;
334 }
335 }
336 /* update mask into registers */
337 for (i = 0; i < 3; i++) {
338 if (mask[i] != cached[i]) {
339 cached[i] = mask[i];
340 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]);
341 }
342 }
343
344 mutex_unlock(&chip->irq_lock);
345 }
346
pm860x_irq_enable(struct irq_data * data)347 static void pm860x_irq_enable(struct irq_data *data)
348 {
349 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
350 pm860x_irqs[data->irq - chip->irq_base].enable
351 = pm860x_irqs[data->irq - chip->irq_base].offs;
352 }
353
pm860x_irq_disable(struct irq_data * data)354 static void pm860x_irq_disable(struct irq_data *data)
355 {
356 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
357 pm860x_irqs[data->irq - chip->irq_base].enable = 0;
358 }
359
360 static struct irq_chip pm860x_irq_chip = {
361 .name = "88pm860x",
362 .irq_bus_lock = pm860x_irq_lock,
363 .irq_bus_sync_unlock = pm860x_irq_sync_unlock,
364 .irq_enable = pm860x_irq_enable,
365 .irq_disable = pm860x_irq_disable,
366 };
367
device_gpadc_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)368 static int __devinit device_gpadc_init(struct pm860x_chip *chip,
369 struct pm860x_platform_data *pdata)
370 {
371 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
372 : chip->companion;
373 int data;
374 int ret;
375
376 /* initialize GPADC without activating it */
377
378 if (!pdata || !pdata->touch)
379 return -EINVAL;
380
381 /* set GPADC MISC1 register */
382 data = 0;
383 data |= (pdata->touch->gpadc_prebias << 1) & PM8607_GPADC_PREBIAS_MASK;
384 data |= (pdata->touch->slot_cycle << 3) & PM8607_GPADC_SLOT_CYCLE_MASK;
385 data |= (pdata->touch->off_scale << 5) & PM8607_GPADC_OFF_SCALE_MASK;
386 data |= (pdata->touch->sw_cal << 7) & PM8607_GPADC_SW_CAL_MASK;
387 if (data) {
388 ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data);
389 if (ret < 0)
390 goto out;
391 }
392 /* set tsi prebias time */
393 if (pdata->touch->tsi_prebias) {
394 data = pdata->touch->tsi_prebias;
395 ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data);
396 if (ret < 0)
397 goto out;
398 }
399 /* set prebias & prechg time of pen detect */
400 data = 0;
401 data |= pdata->touch->pen_prebias & PM8607_PD_PREBIAS_MASK;
402 data |= (pdata->touch->pen_prechg << 5) & PM8607_PD_PRECHG_MASK;
403 if (data) {
404 ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data);
405 if (ret < 0)
406 goto out;
407 }
408
409 ret = pm860x_set_bits(i2c, PM8607_GPADC_MISC1,
410 PM8607_GPADC_EN, PM8607_GPADC_EN);
411 out:
412 return ret;
413 }
414
device_irq_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)415 static int __devinit device_irq_init(struct pm860x_chip *chip,
416 struct pm860x_platform_data *pdata)
417 {
418 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
419 : chip->companion;
420 unsigned char status_buf[INT_STATUS_NUM];
421 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
422 int i, data, mask, ret = -EINVAL;
423 int __irq;
424
425 if (!pdata || !pdata->irq_base) {
426 dev_warn(chip->dev, "No interrupt support on IRQ base\n");
427 return -EINVAL;
428 }
429
430 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR
431 | PM8607_B0_MISC1_INT_MASK;
432 data = 0;
433 chip->irq_mode = 0;
434 if (pdata && pdata->irq_mode) {
435 /*
436 * irq_mode defines the way of clearing interrupt. If it's 1,
437 * clear IRQ by write. Otherwise, clear it by read.
438 * This control bit is valid from 88PM8607 B0 steping.
439 */
440 data |= PM8607_B0_MISC1_INT_CLEAR;
441 chip->irq_mode = 1;
442 }
443 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data);
444 if (ret < 0)
445 goto out;
446
447 /* mask all IRQs */
448 memset(status_buf, 0, INT_STATUS_NUM);
449 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1,
450 INT_STATUS_NUM, status_buf);
451 if (ret < 0)
452 goto out;
453
454 if (chip->irq_mode) {
455 /* clear interrupt status by write */
456 memset(status_buf, 0xFF, INT_STATUS_NUM);
457 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1,
458 INT_STATUS_NUM, status_buf);
459 } else {
460 /* clear interrupt status by read */
461 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1,
462 INT_STATUS_NUM, status_buf);
463 }
464 if (ret < 0)
465 goto out;
466
467 mutex_init(&chip->irq_lock);
468 chip->irq_base = pdata->irq_base;
469 chip->core_irq = i2c->irq;
470 if (!chip->core_irq)
471 goto out;
472
473 /* register IRQ by genirq */
474 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
475 __irq = i + chip->irq_base;
476 irq_set_chip_data(__irq, chip);
477 irq_set_chip_and_handler(__irq, &pm860x_irq_chip,
478 handle_edge_irq);
479 irq_set_nested_thread(__irq, 1);
480 #ifdef CONFIG_ARM
481 set_irq_flags(__irq, IRQF_VALID);
482 #else
483 irq_set_noprobe(__irq);
484 #endif
485 }
486
487 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, flags,
488 "88pm860x", chip);
489 if (ret) {
490 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret);
491 chip->core_irq = 0;
492 }
493
494 return 0;
495 out:
496 chip->core_irq = 0;
497 return ret;
498 }
499
device_irq_exit(struct pm860x_chip * chip)500 static void device_irq_exit(struct pm860x_chip *chip)
501 {
502 if (chip->core_irq)
503 free_irq(chip->core_irq, chip);
504 }
505
pm8606_osc_enable(struct pm860x_chip * chip,unsigned short client)506 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client)
507 {
508 int ret = -EIO;
509 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
510 chip->client : chip->companion;
511
512 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
513 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
514 __func__, chip->osc_vote,
515 chip->osc_status);
516
517 mutex_lock(&chip->osc_lock);
518 /* Update voting status */
519 chip->osc_vote |= client;
520 /* If reference group is off - turn on*/
521 if (chip->osc_status != PM8606_REF_GP_OSC_ON) {
522 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
523 /* Enable Reference group Vsys */
524 if (pm860x_set_bits(i2c, PM8606_VSYS,
525 PM8606_VSYS_EN, PM8606_VSYS_EN))
526 goto out;
527
528 /*Enable Internal Oscillator */
529 if (pm860x_set_bits(i2c, PM8606_MISC,
530 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN))
531 goto out;
532 /* Update status (only if writes succeed) */
533 chip->osc_status = PM8606_REF_GP_OSC_ON;
534 }
535 mutex_unlock(&chip->osc_lock);
536
537 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
538 __func__, chip->osc_vote,
539 chip->osc_status, ret);
540 return 0;
541 out:
542 mutex_unlock(&chip->osc_lock);
543 return ret;
544 }
545 EXPORT_SYMBOL(pm8606_osc_enable);
546
pm8606_osc_disable(struct pm860x_chip * chip,unsigned short client)547 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client)
548 {
549 int ret = -EIO;
550 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ?
551 chip->client : chip->companion;
552
553 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client);
554 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n",
555 __func__, chip->osc_vote,
556 chip->osc_status);
557
558 mutex_lock(&chip->osc_lock);
559 /*Update voting status */
560 chip->osc_vote &= ~(client);
561 /* If reference group is off and this is the last client to release
562 * - turn off */
563 if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) &&
564 (chip->osc_vote == REF_GP_NO_CLIENTS)) {
565 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
566 /* Disable Reference group Vsys */
567 if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0))
568 goto out;
569 /* Disable Internal Oscillator */
570 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0))
571 goto out;
572 chip->osc_status = PM8606_REF_GP_OSC_OFF;
573 }
574 mutex_unlock(&chip->osc_lock);
575
576 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n",
577 __func__, chip->osc_vote,
578 chip->osc_status, ret);
579 return 0;
580 out:
581 mutex_unlock(&chip->osc_lock);
582 return ret;
583 }
584 EXPORT_SYMBOL(pm8606_osc_disable);
585
device_osc_init(struct i2c_client * i2c)586 static void __devinit device_osc_init(struct i2c_client *i2c)
587 {
588 struct pm860x_chip *chip = i2c_get_clientdata(i2c);
589
590 mutex_init(&chip->osc_lock);
591 /* init portofino reference group voting and status */
592 /* Disable Reference group Vsys */
593 pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0);
594 /* Disable Internal Oscillator */
595 pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0);
596
597 chip->osc_vote = REF_GP_NO_CLIENTS;
598 chip->osc_status = PM8606_REF_GP_OSC_OFF;
599 }
600
device_bk_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)601 static void __devinit device_bk_init(struct pm860x_chip *chip,
602 struct pm860x_platform_data *pdata)
603 {
604 int ret;
605 int i, j, id;
606
607 if ((pdata == NULL) || (pdata->backlight == NULL))
608 return;
609
610 if (pdata->num_backlights > ARRAY_SIZE(bk_devs))
611 pdata->num_backlights = ARRAY_SIZE(bk_devs);
612
613 for (i = 0; i < pdata->num_backlights; i++) {
614 bk_devs[i].platform_data = &pdata->backlight[i];
615 bk_devs[i].pdata_size = sizeof(struct pm860x_backlight_pdata);
616
617 for (j = 0; j < ARRAY_SIZE(bk_devs); j++) {
618 id = bk_resources[j].start;
619 if (pdata->backlight[i].flags != id)
620 continue;
621
622 bk_devs[i].num_resources = 1;
623 bk_devs[i].resources = &bk_resources[j];
624 ret = mfd_add_devices(chip->dev, 0,
625 &bk_devs[i], 1,
626 &bk_resources[j], 0);
627 if (ret < 0) {
628 dev_err(chip->dev, "Failed to add "
629 "backlight subdev\n");
630 return;
631 }
632 }
633 }
634 }
635
device_led_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)636 static void __devinit device_led_init(struct pm860x_chip *chip,
637 struct pm860x_platform_data *pdata)
638 {
639 int ret;
640 int i, j, id;
641
642 if ((pdata == NULL) || (pdata->led == NULL))
643 return;
644
645 if (pdata->num_leds > ARRAY_SIZE(led_devs))
646 pdata->num_leds = ARRAY_SIZE(led_devs);
647
648 for (i = 0; i < pdata->num_leds; i++) {
649 led_devs[i].platform_data = &pdata->led[i];
650 led_devs[i].pdata_size = sizeof(struct pm860x_led_pdata);
651
652 for (j = 0; j < ARRAY_SIZE(led_devs); j++) {
653 id = led_resources[j].start;
654 if (pdata->led[i].flags != id)
655 continue;
656
657 led_devs[i].num_resources = 1;
658 led_devs[i].resources = &led_resources[j],
659 ret = mfd_add_devices(chip->dev, 0,
660 &led_devs[i], 1,
661 &led_resources[j], 0);
662 if (ret < 0) {
663 dev_err(chip->dev, "Failed to add "
664 "led subdev\n");
665 return;
666 }
667 }
668 }
669 }
670
device_regulator_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)671 static void __devinit device_regulator_init(struct pm860x_chip *chip,
672 struct pm860x_platform_data *pdata)
673 {
674 struct regulator_init_data *initdata;
675 int ret;
676 int i, seq;
677
678 if ((pdata == NULL) || (pdata->regulator == NULL))
679 return;
680
681 if (pdata->num_regulators > ARRAY_SIZE(regulator_devs))
682 pdata->num_regulators = ARRAY_SIZE(regulator_devs);
683
684 for (i = 0, seq = -1; i < pdata->num_regulators; i++) {
685 initdata = &pdata->regulator[i];
686 seq = *(unsigned int *)initdata->driver_data;
687 if ((seq < 0) || (seq > PM8607_ID_RG_MAX)) {
688 dev_err(chip->dev, "Wrong ID(%d) on regulator(%s)\n",
689 seq, initdata->constraints.name);
690 goto out;
691 }
692 regulator_devs[i].platform_data = &pdata->regulator[i];
693 regulator_devs[i].pdata_size = sizeof(struct regulator_init_data);
694 regulator_devs[i].num_resources = 1;
695 regulator_devs[i].resources = ®ulator_resources[seq];
696
697 ret = mfd_add_devices(chip->dev, 0, ®ulator_devs[i], 1,
698 ®ulator_resources[seq], 0);
699 if (ret < 0) {
700 dev_err(chip->dev, "Failed to add regulator subdev\n");
701 goto out;
702 }
703 }
704 out:
705 return;
706 }
707
device_rtc_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)708 static void __devinit device_rtc_init(struct pm860x_chip *chip,
709 struct pm860x_platform_data *pdata)
710 {
711 int ret;
712
713 if ((pdata == NULL))
714 return;
715
716 rtc_devs[0].platform_data = pdata->rtc;
717 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata);
718 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources);
719 rtc_devs[0].resources = &rtc_resources[0];
720 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
721 ARRAY_SIZE(rtc_devs), &rtc_resources[0],
722 chip->irq_base);
723 if (ret < 0)
724 dev_err(chip->dev, "Failed to add rtc subdev\n");
725 }
726
device_touch_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)727 static void __devinit device_touch_init(struct pm860x_chip *chip,
728 struct pm860x_platform_data *pdata)
729 {
730 int ret;
731
732 if (pdata == NULL)
733 return;
734
735 touch_devs[0].platform_data = pdata->touch;
736 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata);
737 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources);
738 touch_devs[0].resources = &touch_resources[0];
739 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
740 ARRAY_SIZE(touch_devs), &touch_resources[0],
741 chip->irq_base);
742 if (ret < 0)
743 dev_err(chip->dev, "Failed to add touch subdev\n");
744 }
745
device_power_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)746 static void __devinit device_power_init(struct pm860x_chip *chip,
747 struct pm860x_platform_data *pdata)
748 {
749 int ret;
750
751 if (pdata == NULL)
752 return;
753
754 power_devs[0].platform_data = pdata->power;
755 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata);
756 power_devs[0].num_resources = ARRAY_SIZE(battery_resources);
757 power_devs[0].resources = &battery_resources[0],
758 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1,
759 &battery_resources[0], chip->irq_base);
760 if (ret < 0)
761 dev_err(chip->dev, "Failed to add battery subdev\n");
762
763 power_devs[1].platform_data = pdata->power;
764 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata);
765 power_devs[1].num_resources = ARRAY_SIZE(charger_resources);
766 power_devs[1].resources = &charger_resources[0],
767 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1,
768 &charger_resources[0], chip->irq_base);
769 if (ret < 0)
770 dev_err(chip->dev, "Failed to add charger subdev\n");
771 }
772
device_onkey_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)773 static void __devinit device_onkey_init(struct pm860x_chip *chip,
774 struct pm860x_platform_data *pdata)
775 {
776 int ret;
777
778 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources);
779 onkey_devs[0].resources = &onkey_resources[0],
780 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
781 ARRAY_SIZE(onkey_devs), &onkey_resources[0],
782 chip->irq_base);
783 if (ret < 0)
784 dev_err(chip->dev, "Failed to add onkey subdev\n");
785 }
786
device_codec_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)787 static void __devinit device_codec_init(struct pm860x_chip *chip,
788 struct pm860x_platform_data *pdata)
789 {
790 int ret;
791
792 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
793 codec_devs[0].resources = &codec_resources[0],
794 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
795 ARRAY_SIZE(codec_devs), &codec_resources[0], 0);
796 if (ret < 0)
797 dev_err(chip->dev, "Failed to add codec subdev\n");
798 }
799
device_8607_init(struct pm860x_chip * chip,struct i2c_client * i2c,struct pm860x_platform_data * pdata)800 static void __devinit device_8607_init(struct pm860x_chip *chip,
801 struct i2c_client *i2c,
802 struct pm860x_platform_data *pdata)
803 {
804 int data, ret;
805
806 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID);
807 if (ret < 0) {
808 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
809 goto out;
810 }
811 switch (ret & PM8607_VERSION_MASK) {
812 case 0x40:
813 case 0x50:
814 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
815 ret);
816 break;
817 default:
818 dev_err(chip->dev, "Failed to detect Marvell 88PM8607. "
819 "Chip ID: %02x\n", ret);
820 goto out;
821 }
822
823 ret = pm860x_reg_read(i2c, PM8607_BUCK3);
824 if (ret < 0) {
825 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
826 goto out;
827 }
828 if (ret & PM8607_BUCK3_DOUBLE)
829 chip->buck3_double = 1;
830
831 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1);
832 if (ret < 0) {
833 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
834 goto out;
835 }
836
837 if (pdata && (pdata->i2c_port == PI2C_PORT))
838 data = PM8607_B0_MISC1_PI2C;
839 else
840 data = 0;
841 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data);
842 if (ret < 0) {
843 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret);
844 goto out;
845 }
846
847 ret = device_gpadc_init(chip, pdata);
848 if (ret < 0)
849 goto out;
850
851 ret = device_irq_init(chip, pdata);
852 if (ret < 0)
853 goto out;
854
855 device_regulator_init(chip, pdata);
856 device_rtc_init(chip, pdata);
857 device_onkey_init(chip, pdata);
858 device_touch_init(chip, pdata);
859 device_power_init(chip, pdata);
860 device_codec_init(chip, pdata);
861 out:
862 return;
863 }
864
device_8606_init(struct pm860x_chip * chip,struct i2c_client * i2c,struct pm860x_platform_data * pdata)865 static void __devinit device_8606_init(struct pm860x_chip *chip,
866 struct i2c_client *i2c,
867 struct pm860x_platform_data *pdata)
868 {
869 device_osc_init(i2c);
870 device_bk_init(chip, pdata);
871 device_led_init(chip, pdata);
872 }
873
pm860x_device_init(struct pm860x_chip * chip,struct pm860x_platform_data * pdata)874 int __devinit pm860x_device_init(struct pm860x_chip *chip,
875 struct pm860x_platform_data *pdata)
876 {
877 chip->core_irq = 0;
878
879 switch (chip->id) {
880 case CHIP_PM8606:
881 device_8606_init(chip, chip->client, pdata);
882 break;
883 case CHIP_PM8607:
884 device_8607_init(chip, chip->client, pdata);
885 break;
886 }
887
888 if (chip->companion) {
889 switch (chip->id) {
890 case CHIP_PM8607:
891 device_8606_init(chip, chip->companion, pdata);
892 break;
893 case CHIP_PM8606:
894 device_8607_init(chip, chip->companion, pdata);
895 break;
896 }
897 }
898
899 return 0;
900 }
901
pm860x_device_exit(struct pm860x_chip * chip)902 void __devexit pm860x_device_exit(struct pm860x_chip *chip)
903 {
904 device_irq_exit(chip);
905 mfd_remove_devices(chip->dev);
906 }
907
908 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
909 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
910 MODULE_LICENSE("GPL");
911