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1 | /* |
2 | * extcon-arizona.c - Extcon driver Wolfson Arizona devices |
3 | * |
4 | * Copyright (C) 2012 Wolfson Microelectronics plc |
5 | * |
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. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | */ |
16 | |
17 | #include <linux/kernel.h> |
18 | #include <linux/module.h> |
19 | #include <linux/i2c.h> |
20 | #include <linux/slab.h> |
21 | #include <linux/interrupt.h> |
22 | #include <linux/err.h> |
23 | #include <linux/gpio.h> |
24 | #include <linux/input.h> |
25 | #include <linux/platform_device.h> |
26 | #include <linux/pm_runtime.h> |
27 | #include <linux/regulator/consumer.h> |
28 | #include <linux/extcon.h> |
29 | |
30 | #include <sound/soc.h> |
31 | |
32 | #include <linux/mfd/arizona/core.h> |
33 | #include <linux/mfd/arizona/pdata.h> |
34 | #include <linux/mfd/arizona/registers.h> |
35 | |
36 | #define ARIZONA_NUM_BUTTONS 6 |
37 | |
38 | #define ARIZONA_ACCDET_MODE_MIC 0 |
39 | #define ARIZONA_ACCDET_MODE_HPL 1 |
40 | #define ARIZONA_ACCDET_MODE_HPR 2 |
41 | |
42 | struct arizona_extcon_info { |
43 | struct device *dev; |
44 | struct arizona *arizona; |
45 | struct mutex lock; |
46 | struct regulator *micvdd; |
47 | struct input_dev *input; |
48 | |
49 | int micd_mode; |
50 | const struct arizona_micd_config *micd_modes; |
51 | int micd_num_modes; |
52 | |
53 | bool micd_reva; |
54 | bool micd_clamp; |
55 | |
56 | struct delayed_work hpdet_work; |
57 | |
58 | bool hpdet_active; |
59 | bool hpdet_done; |
60 | |
61 | int num_hpdet_res; |
62 | unsigned int hpdet_res[3]; |
63 | |
64 | bool mic; |
65 | bool detecting; |
66 | int jack_flips; |
67 | |
68 | int hpdet_ip; |
69 | |
70 | struct extcon_dev edev; |
71 | }; |
72 | |
73 | static const struct arizona_micd_config micd_default_modes[] = { |
74 | { 0, 2 << ARIZONA_MICD_BIAS_SRC_SHIFT, 1 }, |
75 | { ARIZONA_ACCDET_SRC, 1 << ARIZONA_MICD_BIAS_SRC_SHIFT, 0 }, |
76 | }; |
77 | |
78 | static struct { |
79 | u16 status; |
80 | int report; |
81 | } arizona_lvl_to_key[ARIZONA_NUM_BUTTONS] = { |
82 | { 0x1, BTN_0 }, |
83 | { 0x2, BTN_1 }, |
84 | { 0x4, BTN_2 }, |
85 | { 0x8, BTN_3 }, |
86 | { 0x10, BTN_4 }, |
87 | { 0x20, BTN_5 }, |
88 | }; |
89 | |
90 | #define ARIZONA_CABLE_MECHANICAL 0 |
91 | #define ARIZONA_CABLE_MICROPHONE 1 |
92 | #define ARIZONA_CABLE_HEADPHONE 2 |
93 | #define ARIZONA_CABLE_LINEOUT 3 |
94 | |
95 | static const char *arizona_cable[] = { |
96 | "Mechanical", |
97 | "Microphone", |
98 | "Headphone", |
99 | "Line-out", |
100 | NULL, |
101 | }; |
102 | |
103 | static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode) |
104 | { |
105 | struct arizona *arizona = info->arizona; |
106 | |
107 | if (arizona->pdata.micd_pol_gpio > 0) |
108 | gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio, |
109 | info->micd_modes[mode].gpio); |
110 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
111 | ARIZONA_MICD_BIAS_SRC_MASK, |
112 | info->micd_modes[mode].bias); |
113 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
114 | ARIZONA_ACCDET_SRC, info->micd_modes[mode].src); |
115 | |
116 | info->micd_mode = mode; |
117 | |
118 | dev_dbg(arizona->dev, "Set jack polarity to %d\n", mode); |
119 | } |
120 | |
121 | static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info) |
122 | { |
123 | switch (info->micd_modes[0].bias >> ARIZONA_MICD_BIAS_SRC_SHIFT) { |
124 | case 1: |
125 | return "MICBIAS1"; |
126 | case 2: |
127 | return "MICBIAS2"; |
128 | case 3: |
129 | return "MICBIAS3"; |
130 | default: |
131 | return "MICVDD"; |
132 | } |
133 | } |
134 | |
135 | static void arizona_extcon_pulse_micbias(struct arizona_extcon_info *info) |
136 | { |
137 | struct arizona *arizona = info->arizona; |
138 | const char *widget = arizona_extcon_get_micbias(info); |
139 | struct snd_soc_dapm_context *dapm = arizona->dapm; |
140 | int ret; |
141 | |
142 | mutex_lock(&dapm->card->dapm_mutex); |
143 | |
144 | ret = snd_soc_dapm_force_enable_pin(dapm, widget); |
145 | if (ret != 0) |
146 | dev_warn(arizona->dev, "Failed to enable %s: %d\n", |
147 | widget, ret); |
148 | |
149 | mutex_unlock(&dapm->card->dapm_mutex); |
150 | |
151 | snd_soc_dapm_sync(dapm); |
152 | |
153 | if (!arizona->pdata.micd_force_micbias) { |
154 | mutex_lock(&dapm->card->dapm_mutex); |
155 | |
156 | ret = snd_soc_dapm_disable_pin(arizona->dapm, widget); |
157 | if (ret != 0) |
158 | dev_warn(arizona->dev, "Failed to disable %s: %d\n", |
159 | widget, ret); |
160 | |
161 | mutex_unlock(&dapm->card->dapm_mutex); |
162 | |
163 | snd_soc_dapm_sync(dapm); |
164 | } |
165 | } |
166 | |
167 | static void arizona_start_mic(struct arizona_extcon_info *info) |
168 | { |
169 | struct arizona *arizona = info->arizona; |
170 | bool change; |
171 | int ret; |
172 | |
173 | /* Microphone detection can't use idle mode */ |
174 | pm_runtime_get(info->dev); |
175 | |
176 | if (info->detecting) { |
177 | ret = regulator_allow_bypass(info->micvdd, false); |
178 | if (ret != 0) { |
179 | dev_err(arizona->dev, |
180 | "Failed to regulate MICVDD: %d\n", |
181 | ret); |
182 | } |
183 | } |
184 | |
185 | ret = regulator_enable(info->micvdd); |
186 | if (ret != 0) { |
187 | dev_err(arizona->dev, "Failed to enable MICVDD: %d\n", |
188 | ret); |
189 | } |
190 | |
191 | if (info->micd_reva) { |
192 | regmap_write(arizona->regmap, 0x80, 0x3); |
193 | regmap_write(arizona->regmap, 0x294, 0); |
194 | regmap_write(arizona->regmap, 0x80, 0x0); |
195 | } |
196 | |
197 | regmap_update_bits(arizona->regmap, |
198 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
199 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
200 | |
201 | arizona_extcon_pulse_micbias(info); |
202 | |
203 | regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, |
204 | ARIZONA_MICD_ENA, ARIZONA_MICD_ENA, |
205 | &change); |
206 | if (!change) { |
207 | regulator_disable(info->micvdd); |
208 | pm_runtime_put_autosuspend(info->dev); |
209 | } |
210 | } |
211 | |
212 | static void arizona_stop_mic(struct arizona_extcon_info *info) |
213 | { |
214 | struct arizona *arizona = info->arizona; |
215 | const char *widget = arizona_extcon_get_micbias(info); |
216 | struct snd_soc_dapm_context *dapm = arizona->dapm; |
217 | bool change; |
218 | int ret; |
219 | |
220 | regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, |
221 | ARIZONA_MICD_ENA, 0, |
222 | &change); |
223 | |
224 | mutex_lock(&dapm->card->dapm_mutex); |
225 | |
226 | ret = snd_soc_dapm_disable_pin(dapm, widget); |
227 | if (ret != 0) |
228 | dev_warn(arizona->dev, |
229 | "Failed to disable %s: %d\n", |
230 | widget, ret); |
231 | |
232 | mutex_unlock(&dapm->card->dapm_mutex); |
233 | |
234 | snd_soc_dapm_sync(dapm); |
235 | |
236 | if (info->micd_reva) { |
237 | regmap_write(arizona->regmap, 0x80, 0x3); |
238 | regmap_write(arizona->regmap, 0x294, 2); |
239 | regmap_write(arizona->regmap, 0x80, 0x0); |
240 | } |
241 | |
242 | ret = regulator_allow_bypass(info->micvdd, true); |
243 | if (ret != 0) { |
244 | dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", |
245 | ret); |
246 | } |
247 | |
248 | if (change) { |
249 | regulator_disable(info->micvdd); |
250 | pm_runtime_mark_last_busy(info->dev); |
251 | pm_runtime_put_autosuspend(info->dev); |
252 | } |
253 | } |
254 | |
255 | static struct { |
256 | unsigned int factor_a; |
257 | unsigned int factor_b; |
258 | } arizona_hpdet_b_ranges[] = { |
259 | { 5528, 362464 }, |
260 | { 11084, 6186851 }, |
261 | { 11065, 65460395 }, |
262 | }; |
263 | |
264 | static struct { |
265 | int min; |
266 | int max; |
267 | } arizona_hpdet_c_ranges[] = { |
268 | { 0, 30 }, |
269 | { 8, 100 }, |
270 | { 100, 1000 }, |
271 | { 1000, 10000 }, |
272 | }; |
273 | |
274 | static int arizona_hpdet_read(struct arizona_extcon_info *info) |
275 | { |
276 | struct arizona *arizona = info->arizona; |
277 | unsigned int val, range; |
278 | int ret; |
279 | |
280 | ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2, &val); |
281 | if (ret != 0) { |
282 | dev_err(arizona->dev, "Failed to read HPDET status: %d\n", |
283 | ret); |
284 | return ret; |
285 | } |
286 | |
287 | switch (info->hpdet_ip) { |
288 | case 0: |
289 | if (!(val & ARIZONA_HP_DONE)) { |
290 | dev_err(arizona->dev, "HPDET did not complete: %x\n", |
291 | val); |
292 | return -EAGAIN; |
293 | } |
294 | |
295 | val &= ARIZONA_HP_LVL_MASK; |
296 | break; |
297 | |
298 | case 1: |
299 | if (!(val & ARIZONA_HP_DONE_B)) { |
300 | dev_err(arizona->dev, "HPDET did not complete: %x\n", |
301 | val); |
302 | return -EAGAIN; |
303 | } |
304 | |
305 | ret = regmap_read(arizona->regmap, ARIZONA_HP_DACVAL, &val); |
306 | if (ret != 0) { |
307 | dev_err(arizona->dev, "Failed to read HP value: %d\n", |
308 | ret); |
309 | return -EAGAIN; |
310 | } |
311 | |
312 | regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, |
313 | &range); |
314 | range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) |
315 | >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; |
316 | |
317 | if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 && |
318 | (val < 100 || val > 0x3fb)) { |
319 | range++; |
320 | dev_dbg(arizona->dev, "Moving to HPDET range %d\n", |
321 | range); |
322 | regmap_update_bits(arizona->regmap, |
323 | ARIZONA_HEADPHONE_DETECT_1, |
324 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, |
325 | range << |
326 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); |
327 | return -EAGAIN; |
328 | } |
329 | |
330 | /* If we go out of range report top of range */ |
331 | if (val < 100 || val > 0x3fb) { |
332 | dev_dbg(arizona->dev, "Measurement out of range\n"); |
333 | return 10000; |
334 | } |
335 | |
336 | dev_dbg(arizona->dev, "HPDET read %d in range %d\n", |
337 | val, range); |
338 | |
339 | val = arizona_hpdet_b_ranges[range].factor_b |
340 | / ((val * 100) - |
341 | arizona_hpdet_b_ranges[range].factor_a); |
342 | break; |
343 | |
344 | default: |
345 | dev_warn(arizona->dev, "Unknown HPDET IP revision %d\n", |
346 | info->hpdet_ip); |
347 | case 2: |
348 | if (!(val & ARIZONA_HP_DONE_B)) { |
349 | dev_err(arizona->dev, "HPDET did not complete: %x\n", |
350 | val); |
351 | return -EAGAIN; |
352 | } |
353 | |
354 | val &= ARIZONA_HP_LVL_B_MASK; |
355 | |
356 | regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, |
357 | &range); |
358 | range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) |
359 | >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; |
360 | |
361 | /* Skip up or down a range? */ |
362 | if (range && (val < arizona_hpdet_c_ranges[range].min)) { |
363 | range--; |
364 | dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n", |
365 | arizona_hpdet_c_ranges[range].min, |
366 | arizona_hpdet_c_ranges[range].max); |
367 | regmap_update_bits(arizona->regmap, |
368 | ARIZONA_HEADPHONE_DETECT_1, |
369 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, |
370 | range << |
371 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); |
372 | return -EAGAIN; |
373 | } |
374 | |
375 | if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 && |
376 | (val >= arizona_hpdet_c_ranges[range].max)) { |
377 | range++; |
378 | dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n", |
379 | arizona_hpdet_c_ranges[range].min, |
380 | arizona_hpdet_c_ranges[range].max); |
381 | regmap_update_bits(arizona->regmap, |
382 | ARIZONA_HEADPHONE_DETECT_1, |
383 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, |
384 | range << |
385 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); |
386 | return -EAGAIN; |
387 | } |
388 | } |
389 | |
390 | dev_dbg(arizona->dev, "HP impedance %d ohms\n", val); |
391 | return val; |
392 | } |
393 | |
394 | static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading) |
395 | { |
396 | struct arizona *arizona = info->arizona; |
397 | int id_gpio = arizona->pdata.hpdet_id_gpio; |
398 | |
399 | /* |
400 | * If we're using HPDET for accessory identification we need |
401 | * to take multiple measurements, step through them in sequence. |
402 | */ |
403 | if (arizona->pdata.hpdet_acc_id) { |
404 | info->hpdet_res[info->num_hpdet_res++] = *reading; |
405 | |
406 | /* |
407 | * If the impedence is too high don't measure the |
408 | * second ground. |
409 | */ |
410 | if (info->num_hpdet_res == 1 && *reading >= 45) { |
411 | dev_dbg(arizona->dev, "Skipping ground flip\n"); |
412 | info->hpdet_res[info->num_hpdet_res++] = *reading; |
413 | } |
414 | |
415 | if (info->num_hpdet_res == 1) { |
416 | dev_dbg(arizona->dev, "Flipping ground\n"); |
417 | |
418 | regmap_update_bits(arizona->regmap, |
419 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
420 | ARIZONA_ACCDET_SRC, |
421 | ~info->micd_modes[0].src); |
422 | |
423 | regmap_update_bits(arizona->regmap, |
424 | ARIZONA_HEADPHONE_DETECT_1, |
425 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); |
426 | return -EAGAIN; |
427 | } |
428 | |
429 | /* Only check the mic directly if we didn't already ID it */ |
430 | if (id_gpio && info->num_hpdet_res == 2 && |
431 | !((info->hpdet_res[0] > info->hpdet_res[1] * 2))) { |
432 | dev_dbg(arizona->dev, "Measuring mic\n"); |
433 | |
434 | regmap_update_bits(arizona->regmap, |
435 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
436 | ARIZONA_ACCDET_MODE_MASK | |
437 | ARIZONA_ACCDET_SRC, |
438 | ARIZONA_ACCDET_MODE_HPR | |
439 | info->micd_modes[0].src); |
440 | |
441 | gpio_set_value_cansleep(id_gpio, 1); |
442 | |
443 | regmap_update_bits(arizona->regmap, |
444 | ARIZONA_HEADPHONE_DETECT_1, |
445 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); |
446 | return -EAGAIN; |
447 | } |
448 | |
449 | /* OK, got both. Now, compare... */ |
450 | dev_dbg(arizona->dev, "HPDET measured %d %d %d\n", |
451 | info->hpdet_res[0], info->hpdet_res[1], |
452 | info->hpdet_res[2]); |
453 | |
454 | |
455 | /* Take the headphone impedance for the main report */ |
456 | *reading = info->hpdet_res[0]; |
457 | |
458 | /* |
459 | * Either the two grounds measure differently or we |
460 | * measure the mic as high impedance. |
461 | */ |
462 | if ((info->hpdet_res[0] > info->hpdet_res[1] * 2) || |
463 | (id_gpio && info->hpdet_res[2] > 10)) { |
464 | dev_dbg(arizona->dev, "Detected mic\n"); |
465 | info->mic = true; |
466 | info->detecting = true; |
467 | } else { |
468 | dev_dbg(arizona->dev, "Detected headphone\n"); |
469 | } |
470 | |
471 | /* Make sure everything is reset back to the real polarity */ |
472 | regmap_update_bits(arizona->regmap, |
473 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
474 | ARIZONA_ACCDET_SRC, |
475 | info->micd_modes[0].src); |
476 | } |
477 | |
478 | return 0; |
479 | } |
480 | |
481 | static irqreturn_t arizona_hpdet_irq(int irq, void *data) |
482 | { |
483 | struct arizona_extcon_info *info = data; |
484 | struct arizona *arizona = info->arizona; |
485 | int id_gpio = arizona->pdata.hpdet_id_gpio; |
486 | int report = ARIZONA_CABLE_HEADPHONE; |
487 | unsigned int val; |
488 | int ret, reading; |
489 | |
490 | mutex_lock(&info->lock); |
491 | |
492 | /* If we got a spurious IRQ for some reason then ignore it */ |
493 | if (!info->hpdet_active) { |
494 | dev_warn(arizona->dev, "Spurious HPDET IRQ\n"); |
495 | mutex_unlock(&info->lock); |
496 | return IRQ_NONE; |
497 | } |
498 | |
499 | /* If the cable was removed while measuring ignore the result */ |
500 | ret = extcon_get_cable_state_(&info->edev, ARIZONA_CABLE_MECHANICAL); |
501 | if (ret < 0) { |
502 | dev_err(arizona->dev, "Failed to check cable state: %d\n", |
503 | ret); |
504 | goto out; |
505 | } else if (!ret) { |
506 | dev_dbg(arizona->dev, "Ignoring HPDET for removed cable\n"); |
507 | goto done; |
508 | } |
509 | |
510 | ret = arizona_hpdet_read(info); |
511 | if (ret == -EAGAIN) { |
512 | goto out; |
513 | } else if (ret < 0) { |
514 | goto done; |
515 | } |
516 | reading = ret; |
517 | |
518 | /* Reset back to starting range */ |
519 | regmap_update_bits(arizona->regmap, |
520 | ARIZONA_HEADPHONE_DETECT_1, |
521 | ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, |
522 | 0); |
523 | |
524 | ret = arizona_hpdet_do_id(info, &reading); |
525 | if (ret == -EAGAIN) { |
526 | goto out; |
527 | } else if (ret < 0) { |
528 | goto done; |
529 | } |
530 | |
531 | /* Report high impedence cables as line outputs */ |
532 | if (reading >= 5000) |
533 | report = ARIZONA_CABLE_LINEOUT; |
534 | else |
535 | report = ARIZONA_CABLE_HEADPHONE; |
536 | |
537 | ret = extcon_set_cable_state_(&info->edev, report, true); |
538 | if (ret != 0) |
539 | dev_err(arizona->dev, "Failed to report HP/line: %d\n", |
540 | ret); |
541 | |
542 | mutex_lock(&arizona->dapm->card->dapm_mutex); |
543 | |
544 | ret = regmap_read(arizona->regmap, ARIZONA_OUTPUT_ENABLES_1, &val); |
545 | if (ret != 0) { |
546 | dev_err(arizona->dev, "Failed to read output enables: %d\n", |
547 | ret); |
548 | val = 0; |
549 | } |
550 | |
551 | if (!(val & (ARIZONA_OUT1L_ENA | ARIZONA_OUT1R_ENA))) { |
552 | ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, 0); |
553 | if (ret != 0) |
554 | dev_warn(arizona->dev, "Failed to undo magic: %d\n", |
555 | ret); |
556 | |
557 | ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, 0); |
558 | if (ret != 0) |
559 | dev_warn(arizona->dev, "Failed to undo magic: %d\n", |
560 | ret); |
561 | } |
562 | |
563 | mutex_unlock(&arizona->dapm->card->dapm_mutex); |
564 | |
565 | done: |
566 | if (id_gpio) |
567 | gpio_set_value_cansleep(id_gpio, 0); |
568 | |
569 | /* Revert back to MICDET mode */ |
570 | regmap_update_bits(arizona->regmap, |
571 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
572 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
573 | |
574 | /* If we have a mic then reenable MICDET */ |
575 | if (info->mic) |
576 | arizona_start_mic(info); |
577 | |
578 | if (info->hpdet_active) { |
579 | pm_runtime_put_autosuspend(info->dev); |
580 | info->hpdet_active = false; |
581 | } |
582 | |
583 | info->hpdet_done = true; |
584 | |
585 | out: |
586 | mutex_unlock(&info->lock); |
587 | |
588 | return IRQ_HANDLED; |
589 | } |
590 | |
591 | static void arizona_identify_headphone(struct arizona_extcon_info *info) |
592 | { |
593 | struct arizona *arizona = info->arizona; |
594 | int ret; |
595 | |
596 | if (info->hpdet_done) |
597 | return; |
598 | |
599 | dev_dbg(arizona->dev, "Starting HPDET\n"); |
600 | |
601 | /* Make sure we keep the device enabled during the measurement */ |
602 | pm_runtime_get(info->dev); |
603 | |
604 | info->hpdet_active = true; |
605 | |
606 | if (info->mic) |
607 | arizona_stop_mic(info); |
608 | |
609 | ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, 0x4000); |
610 | if (ret != 0) |
611 | dev_warn(arizona->dev, "Failed to do magic: %d\n", ret); |
612 | |
613 | ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, 0x4000); |
614 | if (ret != 0) |
615 | dev_warn(arizona->dev, "Failed to do magic: %d\n", ret); |
616 | |
617 | ret = regmap_update_bits(arizona->regmap, |
618 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
619 | ARIZONA_ACCDET_MODE_MASK, |
620 | ARIZONA_ACCDET_MODE_HPL); |
621 | if (ret != 0) { |
622 | dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); |
623 | goto err; |
624 | } |
625 | |
626 | ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, |
627 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); |
628 | if (ret != 0) { |
629 | dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n", |
630 | ret); |
631 | goto err; |
632 | } |
633 | |
634 | return; |
635 | |
636 | err: |
637 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
638 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
639 | |
640 | /* Just report headphone */ |
641 | ret = extcon_update_state(&info->edev, |
642 | 1 << ARIZONA_CABLE_HEADPHONE, |
643 | 1 << ARIZONA_CABLE_HEADPHONE); |
644 | if (ret != 0) |
645 | dev_err(arizona->dev, "Failed to report headphone: %d\n", ret); |
646 | |
647 | if (info->mic) |
648 | arizona_start_mic(info); |
649 | |
650 | info->hpdet_active = false; |
651 | } |
652 | |
653 | static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info) |
654 | { |
655 | struct arizona *arizona = info->arizona; |
656 | unsigned int val; |
657 | int ret; |
658 | |
659 | dev_dbg(arizona->dev, "Starting identification via HPDET\n"); |
660 | |
661 | /* Make sure we keep the device enabled during the measurement */ |
662 | pm_runtime_get_sync(info->dev); |
663 | |
664 | info->hpdet_active = true; |
665 | |
666 | arizona_extcon_pulse_micbias(info); |
667 | |
668 | mutex_lock(&arizona->dapm->card->dapm_mutex); |
669 | |
670 | ret = regmap_read(arizona->regmap, ARIZONA_OUTPUT_ENABLES_1, &val); |
671 | if (ret != 0) { |
672 | dev_err(arizona->dev, "Failed to read output enables: %d\n", |
673 | ret); |
674 | val = 0; |
675 | } |
676 | |
677 | if (!(val & (ARIZONA_OUT1L_ENA | ARIZONA_OUT1R_ENA))) { |
678 | ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, |
679 | 0x4000); |
680 | if (ret != 0) |
681 | dev_warn(arizona->dev, "Failed to do magic: %d\n", |
682 | ret); |
683 | |
684 | ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, |
685 | 0x4000); |
686 | if (ret != 0) |
687 | dev_warn(arizona->dev, "Failed to do magic: %d\n", |
688 | ret); |
689 | } |
690 | |
691 | mutex_unlock(&arizona->dapm->card->dapm_mutex); |
692 | |
693 | ret = regmap_update_bits(arizona->regmap, |
694 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
695 | ARIZONA_ACCDET_SRC | ARIZONA_ACCDET_MODE_MASK, |
696 | info->micd_modes[0].src | |
697 | ARIZONA_ACCDET_MODE_HPL); |
698 | if (ret != 0) { |
699 | dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); |
700 | goto err; |
701 | } |
702 | |
703 | ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, |
704 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); |
705 | if (ret != 0) { |
706 | dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n", |
707 | ret); |
708 | goto err; |
709 | } |
710 | |
711 | return; |
712 | |
713 | err: |
714 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
715 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
716 | |
717 | /* Just report headphone */ |
718 | ret = extcon_update_state(&info->edev, |
719 | 1 << ARIZONA_CABLE_HEADPHONE, |
720 | 1 << ARIZONA_CABLE_HEADPHONE); |
721 | if (ret != 0) |
722 | dev_err(arizona->dev, "Failed to report headphone: %d\n", ret); |
723 | |
724 | info->hpdet_active = false; |
725 | } |
726 | |
727 | static irqreturn_t arizona_micdet(int irq, void *data) |
728 | { |
729 | struct arizona_extcon_info *info = data; |
730 | struct arizona *arizona = info->arizona; |
731 | unsigned int val, lvl; |
732 | int ret, i; |
733 | |
734 | mutex_lock(&info->lock); |
735 | |
736 | ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val); |
737 | if (ret != 0) { |
738 | dev_err(arizona->dev, "Failed to read MICDET: %d\n", ret); |
739 | mutex_unlock(&info->lock); |
740 | return IRQ_NONE; |
741 | } |
742 | |
743 | dev_dbg(arizona->dev, "MICDET: %x\n", val); |
744 | |
745 | if (!(val & ARIZONA_MICD_VALID)) { |
746 | dev_warn(arizona->dev, "Microphone detection state invalid\n"); |
747 | mutex_unlock(&info->lock); |
748 | return IRQ_NONE; |
749 | } |
750 | |
751 | /* Due to jack detect this should never happen */ |
752 | if (!(val & ARIZONA_MICD_STS)) { |
753 | dev_warn(arizona->dev, "Detected open circuit\n"); |
754 | info->detecting = false; |
755 | goto handled; |
756 | } |
757 | |
758 | /* If we got a high impedence we should have a headset, report it. */ |
759 | if (info->detecting && (val & 0x400)) { |
760 | arizona_identify_headphone(info); |
761 | |
762 | ret = extcon_update_state(&info->edev, |
763 | 1 << ARIZONA_CABLE_MICROPHONE, |
764 | 1 << ARIZONA_CABLE_MICROPHONE); |
765 | |
766 | if (ret != 0) |
767 | dev_err(arizona->dev, "Headset report failed: %d\n", |
768 | ret); |
769 | |
770 | /* Don't need to regulate for button detection */ |
771 | ret = regulator_allow_bypass(info->micvdd, false); |
772 | if (ret != 0) { |
773 | dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", |
774 | ret); |
775 | } |
776 | |
777 | info->mic = true; |
778 | info->detecting = false; |
779 | goto handled; |
780 | } |
781 | |
782 | /* If we detected a lower impedence during initial startup |
783 | * then we probably have the wrong polarity, flip it. Don't |
784 | * do this for the lowest impedences to speed up detection of |
785 | * plain headphones. If both polarities report a low |
786 | * impedence then give up and report headphones. |
787 | */ |
788 | if (info->detecting && (val & 0x3f8)) { |
789 | if (info->jack_flips >= info->micd_num_modes) { |
790 | dev_dbg(arizona->dev, "Detected HP/line\n"); |
791 | arizona_identify_headphone(info); |
792 | |
793 | info->detecting = false; |
794 | |
795 | arizona_stop_mic(info); |
796 | } else { |
797 | info->micd_mode++; |
798 | if (info->micd_mode == info->micd_num_modes) |
799 | info->micd_mode = 0; |
800 | arizona_extcon_set_mode(info, info->micd_mode); |
801 | |
802 | info->jack_flips++; |
803 | } |
804 | |
805 | goto handled; |
806 | } |
807 | |
808 | /* |
809 | * If we're still detecting and we detect a short then we've |
810 | * got a headphone. Otherwise it's a button press. |
811 | */ |
812 | if (val & 0x3fc) { |
813 | if (info->mic) { |
814 | dev_dbg(arizona->dev, "Mic button detected\n"); |
815 | |
816 | lvl = val & ARIZONA_MICD_LVL_MASK; |
817 | lvl >>= ARIZONA_MICD_LVL_SHIFT; |
818 | |
819 | for (i = 0; i < ARIZONA_NUM_BUTTONS; i++) |
820 | if (lvl & arizona_lvl_to_key[i].status) |
821 | input_report_key(info->input, |
822 | arizona_lvl_to_key[i].report, |
823 | 1); |
824 | input_sync(info->input); |
825 | |
826 | } else if (info->detecting) { |
827 | dev_dbg(arizona->dev, "Headphone detected\n"); |
828 | info->detecting = false; |
829 | arizona_stop_mic(info); |
830 | |
831 | arizona_identify_headphone(info); |
832 | } else { |
833 | dev_warn(arizona->dev, "Button with no mic: %x\n", |
834 | val); |
835 | } |
836 | } else { |
837 | dev_dbg(arizona->dev, "Mic button released\n"); |
838 | for (i = 0; i < ARIZONA_NUM_BUTTONS; i++) |
839 | input_report_key(info->input, |
840 | arizona_lvl_to_key[i].report, 0); |
841 | input_sync(info->input); |
842 | arizona_extcon_pulse_micbias(info); |
843 | } |
844 | |
845 | handled: |
846 | pm_runtime_mark_last_busy(info->dev); |
847 | mutex_unlock(&info->lock); |
848 | |
849 | return IRQ_HANDLED; |
850 | } |
851 | |
852 | static void arizona_hpdet_work(struct work_struct *work) |
853 | { |
854 | struct arizona_extcon_info *info = container_of(work, |
855 | struct arizona_extcon_info, |
856 | hpdet_work.work); |
857 | |
858 | mutex_lock(&info->lock); |
859 | arizona_start_hpdet_acc_id(info); |
860 | mutex_unlock(&info->lock); |
861 | } |
862 | |
863 | static irqreturn_t arizona_jackdet(int irq, void *data) |
864 | { |
865 | struct arizona_extcon_info *info = data; |
866 | struct arizona *arizona = info->arizona; |
867 | unsigned int val, present, mask; |
868 | int ret, i; |
869 | |
870 | pm_runtime_get_sync(info->dev); |
871 | |
872 | cancel_delayed_work_sync(&info->hpdet_work); |
873 | |
874 | mutex_lock(&info->lock); |
875 | |
876 | if (arizona->pdata.jd_gpio5) { |
877 | mask = ARIZONA_MICD_CLAMP_STS; |
878 | present = 0; |
879 | } else { |
880 | mask = ARIZONA_JD1_STS; |
881 | present = ARIZONA_JD1_STS; |
882 | } |
883 | |
884 | ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val); |
885 | if (ret != 0) { |
886 | dev_err(arizona->dev, "Failed to read jackdet status: %d\n", |
887 | ret); |
888 | mutex_unlock(&info->lock); |
889 | pm_runtime_put_autosuspend(info->dev); |
890 | return IRQ_NONE; |
891 | } |
892 | |
893 | if ((val & mask) == present) { |
894 | dev_dbg(arizona->dev, "Detected jack\n"); |
895 | ret = extcon_set_cable_state_(&info->edev, |
896 | ARIZONA_CABLE_MECHANICAL, true); |
897 | |
898 | if (ret != 0) |
899 | dev_err(arizona->dev, "Mechanical report failed: %d\n", |
900 | ret); |
901 | |
902 | if (!arizona->pdata.hpdet_acc_id) { |
903 | info->detecting = true; |
904 | info->mic = false; |
905 | info->jack_flips = 0; |
906 | |
907 | arizona_start_mic(info); |
908 | } else { |
909 | schedule_delayed_work(&info->hpdet_work, |
910 | msecs_to_jiffies(250)); |
911 | } |
912 | |
913 | regmap_update_bits(arizona->regmap, |
914 | ARIZONA_JACK_DETECT_DEBOUNCE, |
915 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, 0); |
916 | } else { |
917 | dev_dbg(arizona->dev, "Detected jack removal\n"); |
918 | |
919 | arizona_stop_mic(info); |
920 | |
921 | info->num_hpdet_res = 0; |
922 | for (i = 0; i < ARRAY_SIZE(info->hpdet_res); i++) |
923 | info->hpdet_res[i] = 0; |
924 | info->mic = false; |
925 | info->hpdet_done = false; |
926 | |
927 | for (i = 0; i < ARIZONA_NUM_BUTTONS; i++) |
928 | input_report_key(info->input, |
929 | arizona_lvl_to_key[i].report, 0); |
930 | input_sync(info->input); |
931 | |
932 | ret = extcon_update_state(&info->edev, 0xffffffff, 0); |
933 | if (ret != 0) |
934 | dev_err(arizona->dev, "Removal report failed: %d\n", |
935 | ret); |
936 | |
937 | regmap_update_bits(arizona->regmap, |
938 | ARIZONA_JACK_DETECT_DEBOUNCE, |
939 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, |
940 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB); |
941 | } |
942 | |
943 | /* Clear trig_sts to make sure DCVDD is not forced up */ |
944 | regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG, |
945 | ARIZONA_MICD_CLAMP_FALL_TRIG_STS | |
946 | ARIZONA_MICD_CLAMP_RISE_TRIG_STS | |
947 | ARIZONA_JD1_FALL_TRIG_STS | |
948 | ARIZONA_JD1_RISE_TRIG_STS); |
949 | |
950 | mutex_unlock(&info->lock); |
951 | |
952 | pm_runtime_mark_last_busy(info->dev); |
953 | pm_runtime_put_autosuspend(info->dev); |
954 | |
955 | return IRQ_HANDLED; |
956 | } |
957 | |
958 | static int arizona_extcon_probe(struct platform_device *pdev) |
959 | { |
960 | struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); |
961 | struct arizona_pdata *pdata; |
962 | struct arizona_extcon_info *info; |
963 | int jack_irq_fall, jack_irq_rise; |
964 | int ret, mode, i; |
965 | |
966 | if (!arizona->dapm || !arizona->dapm->card) |
967 | return -EPROBE_DEFER; |
968 | |
969 | pdata = dev_get_platdata(arizona->dev); |
970 | |
971 | info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); |
972 | if (!info) { |
973 | dev_err(&pdev->dev, "Failed to allocate memory\n"); |
974 | ret = -ENOMEM; |
975 | goto err; |
976 | } |
977 | |
978 | info->micvdd = devm_regulator_get(arizona->dev, "MICVDD"); |
979 | if (IS_ERR(info->micvdd)) { |
980 | ret = PTR_ERR(info->micvdd); |
981 | dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret); |
982 | goto err; |
983 | } |
984 | |
985 | mutex_init(&info->lock); |
986 | info->arizona = arizona; |
987 | info->dev = &pdev->dev; |
988 | INIT_DELAYED_WORK(&info->hpdet_work, arizona_hpdet_work); |
989 | platform_set_drvdata(pdev, info); |
990 | |
991 | switch (arizona->type) { |
992 | case WM5102: |
993 | switch (arizona->rev) { |
994 | case 0: |
995 | info->micd_reva = true; |
996 | break; |
997 | default: |
998 | info->micd_clamp = true; |
999 | info->hpdet_ip = 1; |
1000 | break; |
1001 | } |
1002 | break; |
1003 | default: |
1004 | break; |
1005 | } |
1006 | |
1007 | info->edev.name = "Headset Jack"; |
1008 | info->edev.supported_cable = arizona_cable; |
1009 | |
1010 | ret = extcon_dev_register(&info->edev, arizona->dev); |
1011 | if (ret < 0) { |
1012 | dev_err(arizona->dev, "extcon_dev_register() failed: %d\n", |
1013 | ret); |
1014 | goto err; |
1015 | } |
1016 | |
1017 | if (pdata->num_micd_configs) { |
1018 | info->micd_modes = pdata->micd_configs; |
1019 | info->micd_num_modes = pdata->num_micd_configs; |
1020 | } else { |
1021 | info->micd_modes = micd_default_modes; |
1022 | info->micd_num_modes = ARRAY_SIZE(micd_default_modes); |
1023 | } |
1024 | |
1025 | if (arizona->pdata.micd_pol_gpio > 0) { |
1026 | if (info->micd_modes[0].gpio) |
1027 | mode = GPIOF_OUT_INIT_HIGH; |
1028 | else |
1029 | mode = GPIOF_OUT_INIT_LOW; |
1030 | |
1031 | ret = devm_gpio_request_one(&pdev->dev, |
1032 | arizona->pdata.micd_pol_gpio, |
1033 | mode, |
1034 | "MICD polarity"); |
1035 | if (ret != 0) { |
1036 | dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", |
1037 | arizona->pdata.micd_pol_gpio, ret); |
1038 | goto err_register; |
1039 | } |
1040 | } |
1041 | |
1042 | if (arizona->pdata.hpdet_id_gpio > 0) { |
1043 | ret = devm_gpio_request_one(&pdev->dev, |
1044 | arizona->pdata.hpdet_id_gpio, |
1045 | GPIOF_OUT_INIT_LOW, |
1046 | "HPDET"); |
1047 | if (ret != 0) { |
1048 | dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", |
1049 | arizona->pdata.hpdet_id_gpio, ret); |
1050 | goto err_register; |
1051 | } |
1052 | } |
1053 | |
1054 | if (arizona->pdata.micd_bias_start_time) |
1055 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
1056 | ARIZONA_MICD_BIAS_STARTTIME_MASK, |
1057 | arizona->pdata.micd_bias_start_time |
1058 | << ARIZONA_MICD_BIAS_STARTTIME_SHIFT); |
1059 | |
1060 | if (arizona->pdata.micd_rate) |
1061 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
1062 | ARIZONA_MICD_RATE_MASK, |
1063 | arizona->pdata.micd_rate |
1064 | << ARIZONA_MICD_RATE_SHIFT); |
1065 | |
1066 | if (arizona->pdata.micd_dbtime) |
1067 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
1068 | ARIZONA_MICD_DBTIME_MASK, |
1069 | arizona->pdata.micd_dbtime |
1070 | << ARIZONA_MICD_DBTIME_SHIFT); |
1071 | |
1072 | /* |
1073 | * If we have a clamp use it, activating in conjunction with |
1074 | * GPIO5 if that is connected for jack detect operation. |
1075 | */ |
1076 | if (info->micd_clamp) { |
1077 | if (arizona->pdata.jd_gpio5) { |
1078 | /* Put the GPIO into input mode */ |
1079 | regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL, |
1080 | 0xc101); |
1081 | |
1082 | regmap_update_bits(arizona->regmap, |
1083 | ARIZONA_MICD_CLAMP_CONTROL, |
1084 | ARIZONA_MICD_CLAMP_MODE_MASK, 0x9); |
1085 | } else { |
1086 | regmap_update_bits(arizona->regmap, |
1087 | ARIZONA_MICD_CLAMP_CONTROL, |
1088 | ARIZONA_MICD_CLAMP_MODE_MASK, 0x4); |
1089 | } |
1090 | |
1091 | regmap_update_bits(arizona->regmap, |
1092 | ARIZONA_JACK_DETECT_DEBOUNCE, |
1093 | ARIZONA_MICD_CLAMP_DB, |
1094 | ARIZONA_MICD_CLAMP_DB); |
1095 | } |
1096 | |
1097 | arizona_extcon_set_mode(info, 0); |
1098 | |
1099 | info->input = devm_input_allocate_device(&pdev->dev); |
1100 | if (!info->input) { |
1101 | dev_err(arizona->dev, "Can't allocate input dev\n"); |
1102 | ret = -ENOMEM; |
1103 | goto err_register; |
1104 | } |
1105 | |
1106 | for (i = 0; i < ARIZONA_NUM_BUTTONS; i++) |
1107 | input_set_capability(info->input, EV_KEY, |
1108 | arizona_lvl_to_key[i].report); |
1109 | info->input->name = "Headset"; |
1110 | info->input->phys = "arizona/extcon"; |
1111 | info->input->dev.parent = &pdev->dev; |
1112 | |
1113 | pm_runtime_enable(&pdev->dev); |
1114 | pm_runtime_idle(&pdev->dev); |
1115 | pm_runtime_get_sync(&pdev->dev); |
1116 | |
1117 | if (arizona->pdata.jd_gpio5) { |
1118 | jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; |
1119 | jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; |
1120 | } else { |
1121 | jack_irq_rise = ARIZONA_IRQ_JD_RISE; |
1122 | jack_irq_fall = ARIZONA_IRQ_JD_FALL; |
1123 | } |
1124 | |
1125 | ret = arizona_request_irq(arizona, jack_irq_rise, |
1126 | "JACKDET rise", arizona_jackdet, info); |
1127 | if (ret != 0) { |
1128 | dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n", |
1129 | ret); |
1130 | goto err_input; |
1131 | } |
1132 | |
1133 | ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1); |
1134 | if (ret != 0) { |
1135 | dev_err(&pdev->dev, "Failed to set JD rise IRQ wake: %d\n", |
1136 | ret); |
1137 | goto err_rise; |
1138 | } |
1139 | |
1140 | ret = arizona_request_irq(arizona, jack_irq_fall, |
1141 | "JACKDET fall", arizona_jackdet, info); |
1142 | if (ret != 0) { |
1143 | dev_err(&pdev->dev, "Failed to get JD fall IRQ: %d\n", ret); |
1144 | goto err_rise_wake; |
1145 | } |
1146 | |
1147 | ret = arizona_set_irq_wake(arizona, jack_irq_fall, 1); |
1148 | if (ret != 0) { |
1149 | dev_err(&pdev->dev, "Failed to set JD fall IRQ wake: %d\n", |
1150 | ret); |
1151 | goto err_fall; |
1152 | } |
1153 | |
1154 | ret = arizona_request_irq(arizona, ARIZONA_IRQ_MICDET, |
1155 | "MICDET", arizona_micdet, info); |
1156 | if (ret != 0) { |
1157 | dev_err(&pdev->dev, "Failed to get MICDET IRQ: %d\n", ret); |
1158 | goto err_fall_wake; |
1159 | } |
1160 | |
1161 | ret = arizona_request_irq(arizona, ARIZONA_IRQ_HPDET, |
1162 | "HPDET", arizona_hpdet_irq, info); |
1163 | if (ret != 0) { |
1164 | dev_err(&pdev->dev, "Failed to get HPDET IRQ: %d\n", ret); |
1165 | goto err_micdet; |
1166 | } |
1167 | |
1168 | arizona_clk32k_enable(arizona); |
1169 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_DEBOUNCE, |
1170 | ARIZONA_JD1_DB, ARIZONA_JD1_DB); |
1171 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, |
1172 | ARIZONA_JD1_ENA, ARIZONA_JD1_ENA); |
1173 | |
1174 | ret = regulator_allow_bypass(info->micvdd, true); |
1175 | if (ret != 0) |
1176 | dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n", |
1177 | ret); |
1178 | |
1179 | pm_runtime_put(&pdev->dev); |
1180 | |
1181 | ret = input_register_device(info->input); |
1182 | if (ret) { |
1183 | dev_err(&pdev->dev, "Can't register input device: %d\n", ret); |
1184 | goto err_hpdet; |
1185 | } |
1186 | |
1187 | return 0; |
1188 | |
1189 | err_hpdet: |
1190 | arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); |
1191 | err_micdet: |
1192 | arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); |
1193 | err_fall_wake: |
1194 | arizona_set_irq_wake(arizona, jack_irq_fall, 0); |
1195 | err_fall: |
1196 | arizona_free_irq(arizona, jack_irq_fall, info); |
1197 | err_rise_wake: |
1198 | arizona_set_irq_wake(arizona, jack_irq_rise, 0); |
1199 | err_rise: |
1200 | arizona_free_irq(arizona, jack_irq_rise, info); |
1201 | err_input: |
1202 | err_register: |
1203 | pm_runtime_disable(&pdev->dev); |
1204 | extcon_dev_unregister(&info->edev); |
1205 | err: |
1206 | return ret; |
1207 | } |
1208 | |
1209 | static int arizona_extcon_remove(struct platform_device *pdev) |
1210 | { |
1211 | struct arizona_extcon_info *info = platform_get_drvdata(pdev); |
1212 | struct arizona *arizona = info->arizona; |
1213 | int jack_irq_rise, jack_irq_fall; |
1214 | |
1215 | pm_runtime_disable(&pdev->dev); |
1216 | |
1217 | regmap_update_bits(arizona->regmap, |
1218 | ARIZONA_MICD_CLAMP_CONTROL, |
1219 | ARIZONA_MICD_CLAMP_MODE_MASK, 0); |
1220 | |
1221 | if (arizona->pdata.jd_gpio5) { |
1222 | jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; |
1223 | jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; |
1224 | } else { |
1225 | jack_irq_rise = ARIZONA_IRQ_JD_RISE; |
1226 | jack_irq_fall = ARIZONA_IRQ_JD_FALL; |
1227 | } |
1228 | |
1229 | arizona_set_irq_wake(arizona, jack_irq_rise, 0); |
1230 | arizona_set_irq_wake(arizona, jack_irq_fall, 0); |
1231 | arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); |
1232 | arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); |
1233 | arizona_free_irq(arizona, jack_irq_rise, info); |
1234 | arizona_free_irq(arizona, jack_irq_fall, info); |
1235 | cancel_delayed_work_sync(&info->hpdet_work); |
1236 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, |
1237 | ARIZONA_JD1_ENA, 0); |
1238 | arizona_clk32k_disable(arizona); |
1239 | extcon_dev_unregister(&info->edev); |
1240 | |
1241 | return 0; |
1242 | } |
1243 | |
1244 | static struct platform_driver arizona_extcon_driver = { |
1245 | .driver = { |
1246 | .name = "arizona-extcon", |
1247 | .owner = THIS_MODULE, |
1248 | }, |
1249 | .probe = arizona_extcon_probe, |
1250 | .remove = arizona_extcon_remove, |
1251 | }; |
1252 | |
1253 | module_platform_driver(arizona_extcon_driver); |
1254 | |
1255 | MODULE_DESCRIPTION("Arizona Extcon driver"); |
1256 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |
1257 | MODULE_LICENSE("GPL"); |
1258 | MODULE_ALIAS("platform:extcon-arizona"); |
1259 |
Branches:
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ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
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Tags:
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v2.6.34-rc5
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