Commit | Line | Data |
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f2c32a88 MB |
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> | |
34efe4dc | 24 | #include <linux/input.h> |
f2c32a88 MB |
25 | #include <linux/platform_device.h> |
26 | #include <linux/pm_runtime.h> | |
27 | #include <linux/regulator/consumer.h> | |
28 | #include <linux/extcon.h> | |
29 | ||
bbbd46e3 MB |
30 | #include <sound/soc.h> |
31 | ||
f2c32a88 MB |
32 | #include <linux/mfd/arizona/core.h> |
33 | #include <linux/mfd/arizona/pdata.h> | |
34 | #include <linux/mfd/arizona/registers.h> | |
35 | ||
6fed4d86 | 36 | #define ARIZONA_MAX_MICD_RANGE 8 |
34efe4dc | 37 | |
4f340333 MB |
38 | #define ARIZONA_ACCDET_MODE_MIC 0 |
39 | #define ARIZONA_ACCDET_MODE_HPL 1 | |
40 | #define ARIZONA_ACCDET_MODE_HPR 2 | |
41 | ||
9dd5e53d MB |
42 | #define ARIZONA_HPDET_MAX 10000 |
43 | ||
2643fd64 | 44 | #define HPDET_DEBOUNCE 500 |
7abd4e2a | 45 | #define DEFAULT_MICD_TIMEOUT 2000 |
a3e2078d | 46 | |
ffae24fe CK |
47 | #define MICD_LVL_1_TO_7 (ARIZONA_MICD_LVL_1 | ARIZONA_MICD_LVL_2 | \ |
48 | ARIZONA_MICD_LVL_3 | ARIZONA_MICD_LVL_4 | \ | |
49 | ARIZONA_MICD_LVL_5 | ARIZONA_MICD_LVL_6 | \ | |
50 | ARIZONA_MICD_LVL_7) | |
51 | ||
52 | #define MICD_LVL_0_TO_7 (ARIZONA_MICD_LVL_0 | MICD_LVL_1_TO_7) | |
53 | ||
54 | #define MICD_LVL_0_TO_8 (MICD_LVL_0_TO_7 | ARIZONA_MICD_LVL_8) | |
55 | ||
f2c32a88 MB |
56 | struct arizona_extcon_info { |
57 | struct device *dev; | |
58 | struct arizona *arizona; | |
59 | struct mutex lock; | |
60 | struct regulator *micvdd; | |
34efe4dc | 61 | struct input_dev *input; |
f2c32a88 | 62 | |
a3e2078d MB |
63 | u16 last_jackdet; |
64 | ||
f2c32a88 MB |
65 | int micd_mode; |
66 | const struct arizona_micd_config *micd_modes; | |
67 | int micd_num_modes; | |
68 | ||
6fed4d86 MB |
69 | const struct arizona_micd_range *micd_ranges; |
70 | int num_micd_ranges; | |
71 | ||
7abd4e2a MB |
72 | int micd_timeout; |
73 | ||
f2c32a88 | 74 | bool micd_reva; |
dab63eb2 | 75 | bool micd_clamp; |
f2c32a88 | 76 | |
0e27bd31 | 77 | struct delayed_work hpdet_work; |
cd59e796 | 78 | struct delayed_work micd_detect_work; |
939c5671 | 79 | struct delayed_work micd_timeout_work; |
0e27bd31 | 80 | |
4f340333 | 81 | bool hpdet_active; |
bf14ee5a | 82 | bool hpdet_done; |
9dd5e53d | 83 | bool hpdet_retried; |
4f340333 | 84 | |
dd235eea | 85 | int num_hpdet_res; |
1eda6aa7 | 86 | unsigned int hpdet_res[3]; |
dd235eea | 87 | |
f2c32a88 MB |
88 | bool mic; |
89 | bool detecting; | |
90 | int jack_flips; | |
91 | ||
4f340333 MB |
92 | int hpdet_ip; |
93 | ||
ef70a214 | 94 | struct extcon_dev *edev; |
f2c32a88 MB |
95 | }; |
96 | ||
97 | static const struct arizona_micd_config micd_default_modes[] = { | |
41024243 CK |
98 | { ARIZONA_ACCDET_SRC, 1, 0 }, |
99 | { 0, 2, 1 }, | |
f2c32a88 MB |
100 | }; |
101 | ||
6fed4d86 MB |
102 | static const struct arizona_micd_range micd_default_ranges[] = { |
103 | { .max = 11, .key = BTN_0 }, | |
104 | { .max = 28, .key = BTN_1 }, | |
105 | { .max = 54, .key = BTN_2 }, | |
106 | { .max = 100, .key = BTN_3 }, | |
107 | { .max = 186, .key = BTN_4 }, | |
108 | { .max = 430, .key = BTN_5 }, | |
109 | }; | |
110 | ||
111 | static const int arizona_micd_levels[] = { | |
112 | 3, 6, 8, 11, 13, 16, 18, 21, 23, 26, 28, 31, 34, 36, 39, 41, 44, 46, | |
113 | 49, 52, 54, 57, 60, 62, 65, 67, 70, 73, 75, 78, 81, 83, 89, 94, 100, | |
114 | 105, 111, 116, 122, 127, 139, 150, 161, 173, 186, 196, 209, 220, 245, | |
115 | 270, 295, 321, 348, 375, 402, 430, 489, 550, 614, 681, 752, 903, 1071, | |
116 | 1257, | |
34efe4dc MB |
117 | }; |
118 | ||
325c6423 MB |
119 | #define ARIZONA_CABLE_MECHANICAL 0 |
120 | #define ARIZONA_CABLE_MICROPHONE 1 | |
121 | #define ARIZONA_CABLE_HEADPHONE 2 | |
4f340333 | 122 | #define ARIZONA_CABLE_LINEOUT 3 |
f2c32a88 MB |
123 | |
124 | static const char *arizona_cable[] = { | |
325c6423 MB |
125 | "Mechanical", |
126 | "Microphone", | |
127 | "Headphone", | |
4f340333 | 128 | "Line-out", |
f2c32a88 MB |
129 | NULL, |
130 | }; | |
131 | ||
9dd5e53d MB |
132 | static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info); |
133 | ||
03409071 MB |
134 | static void arizona_extcon_do_magic(struct arizona_extcon_info *info, |
135 | unsigned int magic) | |
136 | { | |
137 | struct arizona *arizona = info->arizona; | |
03409071 MB |
138 | int ret; |
139 | ||
140 | mutex_lock(&arizona->dapm->card->dapm_mutex); | |
141 | ||
df8c3dbe | 142 | arizona->hpdet_magic = magic; |
03409071 | 143 | |
df8c3dbe MB |
144 | /* Keep the HP output stages disabled while doing the magic */ |
145 | if (magic) { | |
146 | ret = regmap_update_bits(arizona->regmap, | |
147 | ARIZONA_OUTPUT_ENABLES_1, | |
148 | ARIZONA_OUT1L_ENA | | |
149 | ARIZONA_OUT1R_ENA, 0); | |
03409071 | 150 | if (ret != 0) |
df8c3dbe MB |
151 | dev_warn(arizona->dev, |
152 | "Failed to disable headphone outputs: %d\n", | |
153 | ret); | |
154 | } | |
155 | ||
156 | ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, | |
157 | magic); | |
158 | if (ret != 0) | |
159 | dev_warn(arizona->dev, "Failed to do magic: %d\n", | |
03409071 MB |
160 | ret); |
161 | ||
df8c3dbe MB |
162 | ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, |
163 | magic); | |
164 | if (ret != 0) | |
165 | dev_warn(arizona->dev, "Failed to do magic: %d\n", | |
166 | ret); | |
167 | ||
168 | /* Restore the desired state while not doing the magic */ | |
169 | if (!magic) { | |
170 | ret = regmap_update_bits(arizona->regmap, | |
171 | ARIZONA_OUTPUT_ENABLES_1, | |
172 | ARIZONA_OUT1L_ENA | | |
173 | ARIZONA_OUT1R_ENA, arizona->hp_ena); | |
03409071 | 174 | if (ret != 0) |
df8c3dbe MB |
175 | dev_warn(arizona->dev, |
176 | "Failed to restore headphone outputs: %d\n", | |
03409071 MB |
177 | ret); |
178 | } | |
179 | ||
180 | mutex_unlock(&arizona->dapm->card->dapm_mutex); | |
181 | } | |
182 | ||
f2c32a88 MB |
183 | static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode) |
184 | { | |
185 | struct arizona *arizona = info->arizona; | |
186 | ||
6fed4d86 | 187 | mode %= info->micd_num_modes; |
84eaa136 | 188 | |
cd74f7b3 MB |
189 | if (arizona->pdata.micd_pol_gpio > 0) |
190 | gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio, | |
191 | info->micd_modes[mode].gpio); | |
f2c32a88 MB |
192 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
193 | ARIZONA_MICD_BIAS_SRC_MASK, | |
41024243 CK |
194 | info->micd_modes[mode].bias << |
195 | ARIZONA_MICD_BIAS_SRC_SHIFT); | |
f2c32a88 MB |
196 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
197 | ARIZONA_ACCDET_SRC, info->micd_modes[mode].src); | |
198 | ||
199 | info->micd_mode = mode; | |
200 | ||
201 | dev_dbg(arizona->dev, "Set jack polarity to %d\n", mode); | |
202 | } | |
203 | ||
bbbd46e3 MB |
204 | static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info) |
205 | { | |
41024243 | 206 | switch (info->micd_modes[0].bias) { |
bbbd46e3 MB |
207 | case 1: |
208 | return "MICBIAS1"; | |
209 | case 2: | |
210 | return "MICBIAS2"; | |
211 | case 3: | |
212 | return "MICBIAS3"; | |
213 | default: | |
214 | return "MICVDD"; | |
215 | } | |
216 | } | |
217 | ||
218 | static void arizona_extcon_pulse_micbias(struct arizona_extcon_info *info) | |
219 | { | |
220 | struct arizona *arizona = info->arizona; | |
221 | const char *widget = arizona_extcon_get_micbias(info); | |
222 | struct snd_soc_dapm_context *dapm = arizona->dapm; | |
223 | int ret; | |
224 | ||
bbbd46e3 MB |
225 | ret = snd_soc_dapm_force_enable_pin(dapm, widget); |
226 | if (ret != 0) | |
227 | dev_warn(arizona->dev, "Failed to enable %s: %d\n", | |
228 | widget, ret); | |
229 | ||
bbbd46e3 MB |
230 | snd_soc_dapm_sync(dapm); |
231 | ||
232 | if (!arizona->pdata.micd_force_micbias) { | |
bbbd46e3 MB |
233 | ret = snd_soc_dapm_disable_pin(arizona->dapm, widget); |
234 | if (ret != 0) | |
235 | dev_warn(arizona->dev, "Failed to disable %s: %d\n", | |
236 | widget, ret); | |
237 | ||
bbbd46e3 MB |
238 | snd_soc_dapm_sync(dapm); |
239 | } | |
240 | } | |
241 | ||
9b1270c7 MB |
242 | static void arizona_start_mic(struct arizona_extcon_info *info) |
243 | { | |
244 | struct arizona *arizona = info->arizona; | |
245 | bool change; | |
246 | int ret; | |
247 | ||
9b1270c7 MB |
248 | /* Microphone detection can't use idle mode */ |
249 | pm_runtime_get(info->dev); | |
250 | ||
bbbd46e3 MB |
251 | if (info->detecting) { |
252 | ret = regulator_allow_bypass(info->micvdd, false); | |
253 | if (ret != 0) { | |
254 | dev_err(arizona->dev, | |
255 | "Failed to regulate MICVDD: %d\n", | |
256 | ret); | |
257 | } | |
258 | } | |
259 | ||
9b1270c7 MB |
260 | ret = regulator_enable(info->micvdd); |
261 | if (ret != 0) { | |
262 | dev_err(arizona->dev, "Failed to enable MICVDD: %d\n", | |
263 | ret); | |
264 | } | |
265 | ||
266 | if (info->micd_reva) { | |
267 | regmap_write(arizona->regmap, 0x80, 0x3); | |
268 | regmap_write(arizona->regmap, 0x294, 0); | |
269 | regmap_write(arizona->regmap, 0x80, 0x0); | |
270 | } | |
271 | ||
272 | regmap_update_bits(arizona->regmap, | |
273 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
274 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
275 | ||
bbbd46e3 MB |
276 | arizona_extcon_pulse_micbias(info); |
277 | ||
9b1270c7 MB |
278 | regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, |
279 | ARIZONA_MICD_ENA, ARIZONA_MICD_ENA, | |
280 | &change); | |
281 | if (!change) { | |
282 | regulator_disable(info->micvdd); | |
283 | pm_runtime_put_autosuspend(info->dev); | |
284 | } | |
285 | } | |
286 | ||
287 | static void arizona_stop_mic(struct arizona_extcon_info *info) | |
288 | { | |
289 | struct arizona *arizona = info->arizona; | |
bbbd46e3 MB |
290 | const char *widget = arizona_extcon_get_micbias(info); |
291 | struct snd_soc_dapm_context *dapm = arizona->dapm; | |
9b1270c7 | 292 | bool change; |
bbbd46e3 | 293 | int ret; |
9b1270c7 MB |
294 | |
295 | regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
296 | ARIZONA_MICD_ENA, 0, | |
297 | &change); | |
298 | ||
bbbd46e3 MB |
299 | ret = snd_soc_dapm_disable_pin(dapm, widget); |
300 | if (ret != 0) | |
301 | dev_warn(arizona->dev, | |
302 | "Failed to disable %s: %d\n", | |
303 | widget, ret); | |
304 | ||
bbbd46e3 MB |
305 | snd_soc_dapm_sync(dapm); |
306 | ||
9b1270c7 MB |
307 | if (info->micd_reva) { |
308 | regmap_write(arizona->regmap, 0x80, 0x3); | |
309 | regmap_write(arizona->regmap, 0x294, 2); | |
310 | regmap_write(arizona->regmap, 0x80, 0x0); | |
311 | } | |
312 | ||
bbbd46e3 MB |
313 | ret = regulator_allow_bypass(info->micvdd, true); |
314 | if (ret != 0) { | |
315 | dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", | |
316 | ret); | |
317 | } | |
318 | ||
9b1270c7 MB |
319 | if (change) { |
320 | regulator_disable(info->micvdd); | |
321 | pm_runtime_mark_last_busy(info->dev); | |
322 | pm_runtime_put_autosuspend(info->dev); | |
323 | } | |
324 | } | |
325 | ||
4f340333 MB |
326 | static struct { |
327 | unsigned int factor_a; | |
328 | unsigned int factor_b; | |
329 | } arizona_hpdet_b_ranges[] = { | |
330 | { 5528, 362464 }, | |
331 | { 11084, 6186851 }, | |
332 | { 11065, 65460395 }, | |
333 | }; | |
334 | ||
335 | static struct { | |
336 | int min; | |
337 | int max; | |
338 | } arizona_hpdet_c_ranges[] = { | |
339 | { 0, 30 }, | |
340 | { 8, 100 }, | |
341 | { 100, 1000 }, | |
342 | { 1000, 10000 }, | |
343 | }; | |
344 | ||
345 | static int arizona_hpdet_read(struct arizona_extcon_info *info) | |
346 | { | |
347 | struct arizona *arizona = info->arizona; | |
348 | unsigned int val, range; | |
349 | int ret; | |
350 | ||
351 | ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2, &val); | |
352 | if (ret != 0) { | |
353 | dev_err(arizona->dev, "Failed to read HPDET status: %d\n", | |
354 | ret); | |
355 | return ret; | |
356 | } | |
357 | ||
358 | switch (info->hpdet_ip) { | |
359 | case 0: | |
360 | if (!(val & ARIZONA_HP_DONE)) { | |
361 | dev_err(arizona->dev, "HPDET did not complete: %x\n", | |
362 | val); | |
e6dd8cf2 | 363 | return -EAGAIN; |
4f340333 MB |
364 | } |
365 | ||
366 | val &= ARIZONA_HP_LVL_MASK; | |
367 | break; | |
368 | ||
369 | case 1: | |
370 | if (!(val & ARIZONA_HP_DONE_B)) { | |
371 | dev_err(arizona->dev, "HPDET did not complete: %x\n", | |
372 | val); | |
e6dd8cf2 | 373 | return -EAGAIN; |
4f340333 MB |
374 | } |
375 | ||
376 | ret = regmap_read(arizona->regmap, ARIZONA_HP_DACVAL, &val); | |
377 | if (ret != 0) { | |
378 | dev_err(arizona->dev, "Failed to read HP value: %d\n", | |
379 | ret); | |
e6dd8cf2 | 380 | return -EAGAIN; |
4f340333 MB |
381 | } |
382 | ||
383 | regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, | |
384 | &range); | |
385 | range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) | |
386 | >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; | |
387 | ||
388 | if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 && | |
4ba1a9ff | 389 | (val < 100 || val >= 0x3fb)) { |
4f340333 MB |
390 | range++; |
391 | dev_dbg(arizona->dev, "Moving to HPDET range %d\n", | |
392 | range); | |
393 | regmap_update_bits(arizona->regmap, | |
394 | ARIZONA_HEADPHONE_DETECT_1, | |
395 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, | |
396 | range << | |
397 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); | |
398 | return -EAGAIN; | |
399 | } | |
400 | ||
401 | /* If we go out of range report top of range */ | |
4ba1a9ff | 402 | if (val < 100 || val >= 0x3fb) { |
4f340333 | 403 | dev_dbg(arizona->dev, "Measurement out of range\n"); |
9dd5e53d | 404 | return ARIZONA_HPDET_MAX; |
4f340333 MB |
405 | } |
406 | ||
407 | dev_dbg(arizona->dev, "HPDET read %d in range %d\n", | |
408 | val, range); | |
409 | ||
410 | val = arizona_hpdet_b_ranges[range].factor_b | |
411 | / ((val * 100) - | |
412 | arizona_hpdet_b_ranges[range].factor_a); | |
413 | break; | |
414 | ||
415 | default: | |
416 | dev_warn(arizona->dev, "Unknown HPDET IP revision %d\n", | |
417 | info->hpdet_ip); | |
418 | case 2: | |
419 | if (!(val & ARIZONA_HP_DONE_B)) { | |
420 | dev_err(arizona->dev, "HPDET did not complete: %x\n", | |
421 | val); | |
e6dd8cf2 | 422 | return -EAGAIN; |
4f340333 MB |
423 | } |
424 | ||
425 | val &= ARIZONA_HP_LVL_B_MASK; | |
77438610 CK |
426 | /* Convert to ohms, the value is in 0.5 ohm increments */ |
427 | val /= 2; | |
4f340333 MB |
428 | |
429 | regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, | |
430 | &range); | |
431 | range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) | |
432 | >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; | |
433 | ||
9141461d | 434 | /* Skip up a range, or report? */ |
4f340333 MB |
435 | if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 && |
436 | (val >= arizona_hpdet_c_ranges[range].max)) { | |
437 | range++; | |
438 | dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n", | |
439 | arizona_hpdet_c_ranges[range].min, | |
440 | arizona_hpdet_c_ranges[range].max); | |
441 | regmap_update_bits(arizona->regmap, | |
442 | ARIZONA_HEADPHONE_DETECT_1, | |
443 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, | |
444 | range << | |
445 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); | |
446 | return -EAGAIN; | |
447 | } | |
9141461d CK |
448 | |
449 | if (range && (val < arizona_hpdet_c_ranges[range].min)) { | |
450 | dev_dbg(arizona->dev, "Reporting range boundary %d\n", | |
451 | arizona_hpdet_c_ranges[range].min); | |
452 | val = arizona_hpdet_c_ranges[range].min; | |
453 | } | |
4f340333 MB |
454 | } |
455 | ||
456 | dev_dbg(arizona->dev, "HP impedance %d ohms\n", val); | |
457 | return val; | |
458 | } | |
459 | ||
9c2ba270 MB |
460 | static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading, |
461 | bool *mic) | |
dd235eea MB |
462 | { |
463 | struct arizona *arizona = info->arizona; | |
1eda6aa7 | 464 | int id_gpio = arizona->pdata.hpdet_id_gpio; |
dd235eea MB |
465 | |
466 | /* | |
467 | * If we're using HPDET for accessory identification we need | |
468 | * to take multiple measurements, step through them in sequence. | |
469 | */ | |
470 | if (arizona->pdata.hpdet_acc_id) { | |
471 | info->hpdet_res[info->num_hpdet_res++] = *reading; | |
1eda6aa7 MB |
472 | |
473 | /* Only check the mic directly if we didn't already ID it */ | |
9c2ba270 | 474 | if (id_gpio && info->num_hpdet_res == 1) { |
1eda6aa7 MB |
475 | dev_dbg(arizona->dev, "Measuring mic\n"); |
476 | ||
477 | regmap_update_bits(arizona->regmap, | |
478 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
479 | ARIZONA_ACCDET_MODE_MASK | | |
480 | ARIZONA_ACCDET_SRC, | |
481 | ARIZONA_ACCDET_MODE_HPR | | |
482 | info->micd_modes[0].src); | |
483 | ||
484 | gpio_set_value_cansleep(id_gpio, 1); | |
485 | ||
dd235eea MB |
486 | regmap_update_bits(arizona->regmap, |
487 | ARIZONA_HEADPHONE_DETECT_1, | |
488 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); | |
489 | return -EAGAIN; | |
490 | } | |
491 | ||
492 | /* OK, got both. Now, compare... */ | |
9c2ba270 MB |
493 | dev_dbg(arizona->dev, "HPDET measured %d %d\n", |
494 | info->hpdet_res[0], info->hpdet_res[1]); | |
c37b387f MB |
495 | |
496 | /* Take the headphone impedance for the main report */ | |
497 | *reading = info->hpdet_res[0]; | |
498 | ||
9dd5e53d MB |
499 | /* Sometimes we get false readings due to slow insert */ |
500 | if (*reading >= ARIZONA_HPDET_MAX && !info->hpdet_retried) { | |
501 | dev_dbg(arizona->dev, "Retrying high impedance\n"); | |
502 | info->num_hpdet_res = 0; | |
503 | info->hpdet_retried = true; | |
504 | arizona_start_hpdet_acc_id(info); | |
505 | pm_runtime_put(info->dev); | |
506 | return -EAGAIN; | |
507 | } | |
508 | ||
1eda6aa7 | 509 | /* |
d97abdde | 510 | * If we measure the mic as high impedance |
1eda6aa7 | 511 | */ |
9c2ba270 | 512 | if (!id_gpio || info->hpdet_res[1] > 50) { |
dd235eea | 513 | dev_dbg(arizona->dev, "Detected mic\n"); |
9c2ba270 | 514 | *mic = true; |
bf14ee5a | 515 | info->detecting = true; |
dd235eea MB |
516 | } else { |
517 | dev_dbg(arizona->dev, "Detected headphone\n"); | |
518 | } | |
519 | ||
520 | /* Make sure everything is reset back to the real polarity */ | |
521 | regmap_update_bits(arizona->regmap, | |
522 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
523 | ARIZONA_ACCDET_SRC, | |
524 | info->micd_modes[0].src); | |
525 | } | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
4f340333 MB |
530 | static irqreturn_t arizona_hpdet_irq(int irq, void *data) |
531 | { | |
532 | struct arizona_extcon_info *info = data; | |
533 | struct arizona *arizona = info->arizona; | |
1eda6aa7 | 534 | int id_gpio = arizona->pdata.hpdet_id_gpio; |
4f340333 | 535 | int report = ARIZONA_CABLE_HEADPHONE; |
dd235eea | 536 | int ret, reading; |
9c2ba270 | 537 | bool mic = false; |
4f340333 MB |
538 | |
539 | mutex_lock(&info->lock); | |
540 | ||
541 | /* If we got a spurious IRQ for some reason then ignore it */ | |
542 | if (!info->hpdet_active) { | |
543 | dev_warn(arizona->dev, "Spurious HPDET IRQ\n"); | |
544 | mutex_unlock(&info->lock); | |
545 | return IRQ_NONE; | |
546 | } | |
547 | ||
548 | /* If the cable was removed while measuring ignore the result */ | |
ef70a214 | 549 | ret = extcon_get_cable_state_(info->edev, ARIZONA_CABLE_MECHANICAL); |
4f340333 MB |
550 | if (ret < 0) { |
551 | dev_err(arizona->dev, "Failed to check cable state: %d\n", | |
552 | ret); | |
553 | goto out; | |
554 | } else if (!ret) { | |
555 | dev_dbg(arizona->dev, "Ignoring HPDET for removed cable\n"); | |
556 | goto done; | |
557 | } | |
558 | ||
559 | ret = arizona_hpdet_read(info); | |
d6675667 | 560 | if (ret == -EAGAIN) |
4f340333 | 561 | goto out; |
d6675667 | 562 | else if (ret < 0) |
4f340333 | 563 | goto done; |
dd235eea | 564 | reading = ret; |
4f340333 MB |
565 | |
566 | /* Reset back to starting range */ | |
567 | regmap_update_bits(arizona->regmap, | |
568 | ARIZONA_HEADPHONE_DETECT_1, | |
dd235eea MB |
569 | ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, |
570 | 0); | |
571 | ||
9c2ba270 | 572 | ret = arizona_hpdet_do_id(info, &reading, &mic); |
d6675667 | 573 | if (ret == -EAGAIN) |
dd235eea | 574 | goto out; |
d6675667 | 575 | else if (ret < 0) |
dd235eea | 576 | goto done; |
4f340333 MB |
577 | |
578 | /* Report high impedence cables as line outputs */ | |
dd235eea | 579 | if (reading >= 5000) |
4f340333 MB |
580 | report = ARIZONA_CABLE_LINEOUT; |
581 | else | |
582 | report = ARIZONA_CABLE_HEADPHONE; | |
583 | ||
ef70a214 | 584 | ret = extcon_set_cable_state_(info->edev, report, true); |
4f340333 MB |
585 | if (ret != 0) |
586 | dev_err(arizona->dev, "Failed to report HP/line: %d\n", | |
587 | ret); | |
588 | ||
a3e00d4b CK |
589 | done: |
590 | /* Reset back to starting range */ | |
591 | regmap_update_bits(arizona->regmap, | |
592 | ARIZONA_HEADPHONE_DETECT_1, | |
593 | ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, | |
594 | 0); | |
595 | ||
03409071 | 596 | arizona_extcon_do_magic(info, 0); |
4f340333 | 597 | |
1eda6aa7 MB |
598 | if (id_gpio) |
599 | gpio_set_value_cansleep(id_gpio, 0); | |
4f340333 MB |
600 | |
601 | /* Revert back to MICDET mode */ | |
602 | regmap_update_bits(arizona->regmap, | |
603 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
604 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
605 | ||
606 | /* If we have a mic then reenable MICDET */ | |
9c2ba270 | 607 | if (mic || info->mic) |
4f340333 MB |
608 | arizona_start_mic(info); |
609 | ||
610 | if (info->hpdet_active) { | |
611 | pm_runtime_put_autosuspend(info->dev); | |
612 | info->hpdet_active = false; | |
613 | } | |
614 | ||
bf14ee5a MB |
615 | info->hpdet_done = true; |
616 | ||
4f340333 MB |
617 | out: |
618 | mutex_unlock(&info->lock); | |
619 | ||
620 | return IRQ_HANDLED; | |
621 | } | |
622 | ||
623 | static void arizona_identify_headphone(struct arizona_extcon_info *info) | |
624 | { | |
625 | struct arizona *arizona = info->arizona; | |
626 | int ret; | |
627 | ||
bf14ee5a MB |
628 | if (info->hpdet_done) |
629 | return; | |
630 | ||
4f340333 MB |
631 | dev_dbg(arizona->dev, "Starting HPDET\n"); |
632 | ||
633 | /* Make sure we keep the device enabled during the measurement */ | |
634 | pm_runtime_get(info->dev); | |
635 | ||
636 | info->hpdet_active = true; | |
637 | ||
638 | if (info->mic) | |
639 | arizona_stop_mic(info); | |
640 | ||
03409071 | 641 | arizona_extcon_do_magic(info, 0x4000); |
4f340333 MB |
642 | |
643 | ret = regmap_update_bits(arizona->regmap, | |
644 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
645 | ARIZONA_ACCDET_MODE_MASK, | |
646 | ARIZONA_ACCDET_MODE_HPL); | |
647 | if (ret != 0) { | |
648 | dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); | |
649 | goto err; | |
650 | } | |
651 | ||
652 | ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, | |
653 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); | |
654 | if (ret != 0) { | |
655 | dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n", | |
656 | ret); | |
657 | goto err; | |
658 | } | |
659 | ||
660 | return; | |
661 | ||
662 | err: | |
663 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, | |
664 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
665 | ||
666 | /* Just report headphone */ | |
ef70a214 | 667 | ret = extcon_update_state(info->edev, |
4f340333 MB |
668 | 1 << ARIZONA_CABLE_HEADPHONE, |
669 | 1 << ARIZONA_CABLE_HEADPHONE); | |
670 | if (ret != 0) | |
671 | dev_err(arizona->dev, "Failed to report headphone: %d\n", ret); | |
672 | ||
673 | if (info->mic) | |
674 | arizona_start_mic(info); | |
675 | ||
676 | info->hpdet_active = false; | |
677 | } | |
dd235eea MB |
678 | |
679 | static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info) | |
680 | { | |
681 | struct arizona *arizona = info->arizona; | |
9c2ba270 MB |
682 | int hp_reading = 32; |
683 | bool mic; | |
dd235eea MB |
684 | int ret; |
685 | ||
686 | dev_dbg(arizona->dev, "Starting identification via HPDET\n"); | |
687 | ||
688 | /* Make sure we keep the device enabled during the measurement */ | |
0e27bd31 | 689 | pm_runtime_get_sync(info->dev); |
dd235eea MB |
690 | |
691 | info->hpdet_active = true; | |
692 | ||
03409071 | 693 | arizona_extcon_do_magic(info, 0x4000); |
dd235eea MB |
694 | |
695 | ret = regmap_update_bits(arizona->regmap, | |
696 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
697 | ARIZONA_ACCDET_SRC | ARIZONA_ACCDET_MODE_MASK, | |
698 | info->micd_modes[0].src | | |
699 | ARIZONA_ACCDET_MODE_HPL); | |
700 | if (ret != 0) { | |
701 | dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); | |
702 | goto err; | |
703 | } | |
704 | ||
9c2ba270 MB |
705 | if (arizona->pdata.hpdet_acc_id_line) { |
706 | ret = regmap_update_bits(arizona->regmap, | |
707 | ARIZONA_HEADPHONE_DETECT_1, | |
708 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); | |
709 | if (ret != 0) { | |
710 | dev_err(arizona->dev, | |
711 | "Can't start HPDETL measurement: %d\n", | |
712 | ret); | |
713 | goto err; | |
714 | } | |
715 | } else { | |
716 | arizona_hpdet_do_id(info, &hp_reading, &mic); | |
4f340333 MB |
717 | } |
718 | ||
dd235eea MB |
719 | return; |
720 | ||
721 | err: | |
722 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, | |
723 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
724 | ||
725 | /* Just report headphone */ | |
ef70a214 | 726 | ret = extcon_update_state(info->edev, |
dd235eea MB |
727 | 1 << ARIZONA_CABLE_HEADPHONE, |
728 | 1 << ARIZONA_CABLE_HEADPHONE); | |
729 | if (ret != 0) | |
730 | dev_err(arizona->dev, "Failed to report headphone: %d\n", ret); | |
731 | ||
4f340333 MB |
732 | info->hpdet_active = false; |
733 | } | |
734 | ||
939c5671 MB |
735 | static void arizona_micd_timeout_work(struct work_struct *work) |
736 | { | |
737 | struct arizona_extcon_info *info = container_of(work, | |
c2275d2f CC |
738 | struct arizona_extcon_info, |
739 | micd_timeout_work.work); | |
939c5671 MB |
740 | |
741 | mutex_lock(&info->lock); | |
742 | ||
743 | dev_dbg(info->arizona->dev, "MICD timed out, reporting HP\n"); | |
744 | arizona_identify_headphone(info); | |
745 | ||
746 | info->detecting = false; | |
747 | ||
748 | arizona_stop_mic(info); | |
749 | ||
750 | mutex_unlock(&info->lock); | |
751 | } | |
752 | ||
cd59e796 | 753 | static void arizona_micd_detect(struct work_struct *work) |
f2c32a88 | 754 | { |
cd59e796 | 755 | struct arizona_extcon_info *info = container_of(work, |
c2275d2f CC |
756 | struct arizona_extcon_info, |
757 | micd_detect_work.work); | |
f2c32a88 | 758 | struct arizona *arizona = info->arizona; |
e2c0f476 | 759 | unsigned int val = 0, lvl; |
6fed4d86 | 760 | int ret, i, key; |
f2c32a88 | 761 | |
939c5671 MB |
762 | cancel_delayed_work_sync(&info->micd_timeout_work); |
763 | ||
f2c32a88 MB |
764 | mutex_lock(&info->lock); |
765 | ||
31a847e6 | 766 | /* If the cable was removed while measuring ignore the result */ |
ef70a214 | 767 | ret = extcon_get_cable_state_(info->edev, ARIZONA_CABLE_MECHANICAL); |
31a847e6 CK |
768 | if (ret < 0) { |
769 | dev_err(arizona->dev, "Failed to check cable state: %d\n", | |
770 | ret); | |
771 | mutex_unlock(&info->lock); | |
772 | return; | |
773 | } else if (!ret) { | |
774 | dev_dbg(arizona->dev, "Ignoring MICDET for removed cable\n"); | |
775 | mutex_unlock(&info->lock); | |
776 | return; | |
777 | } | |
778 | ||
ffae24fe | 779 | for (i = 0; i < 10 && !(val & MICD_LVL_0_TO_8); i++) { |
e2c0f476 CK |
780 | ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val); |
781 | if (ret != 0) { | |
c2275d2f CC |
782 | dev_err(arizona->dev, |
783 | "Failed to read MICDET: %d\n", ret); | |
e2c0f476 | 784 | mutex_unlock(&info->lock); |
cd59e796 | 785 | return; |
e2c0f476 CK |
786 | } |
787 | ||
788 | dev_dbg(arizona->dev, "MICDET: %x\n", val); | |
f2c32a88 | 789 | |
e2c0f476 | 790 | if (!(val & ARIZONA_MICD_VALID)) { |
c2275d2f CC |
791 | dev_warn(arizona->dev, |
792 | "Microphone detection state invalid\n"); | |
e2c0f476 | 793 | mutex_unlock(&info->lock); |
cd59e796 | 794 | return; |
e2c0f476 CK |
795 | } |
796 | } | |
f2c32a88 | 797 | |
ffae24fe | 798 | if (i == 10 && !(val & MICD_LVL_0_TO_8)) { |
e2c0f476 | 799 | dev_err(arizona->dev, "Failed to get valid MICDET value\n"); |
f2c32a88 | 800 | mutex_unlock(&info->lock); |
cd59e796 | 801 | return; |
f2c32a88 MB |
802 | } |
803 | ||
804 | /* Due to jack detect this should never happen */ | |
805 | if (!(val & ARIZONA_MICD_STS)) { | |
806 | dev_warn(arizona->dev, "Detected open circuit\n"); | |
807 | info->detecting = false; | |
808 | goto handled; | |
809 | } | |
810 | ||
811 | /* If we got a high impedence we should have a headset, report it. */ | |
ffae24fe | 812 | if (info->detecting && (val & ARIZONA_MICD_LVL_8)) { |
4f340333 MB |
813 | arizona_identify_headphone(info); |
814 | ||
ef70a214 | 815 | ret = extcon_update_state(info->edev, |
4f340333 MB |
816 | 1 << ARIZONA_CABLE_MICROPHONE, |
817 | 1 << ARIZONA_CABLE_MICROPHONE); | |
f2c32a88 MB |
818 | |
819 | if (ret != 0) | |
820 | dev_err(arizona->dev, "Headset report failed: %d\n", | |
821 | ret); | |
822 | ||
bbbd46e3 MB |
823 | /* Don't need to regulate for button detection */ |
824 | ret = regulator_allow_bypass(info->micvdd, false); | |
825 | if (ret != 0) { | |
826 | dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", | |
827 | ret); | |
828 | } | |
829 | ||
f2c32a88 MB |
830 | info->mic = true; |
831 | info->detecting = false; | |
832 | goto handled; | |
833 | } | |
834 | ||
835 | /* If we detected a lower impedence during initial startup | |
836 | * then we probably have the wrong polarity, flip it. Don't | |
837 | * do this for the lowest impedences to speed up detection of | |
838 | * plain headphones. If both polarities report a low | |
839 | * impedence then give up and report headphones. | |
840 | */ | |
ffae24fe | 841 | if (info->detecting && (val & MICD_LVL_1_TO_7)) { |
84eaa136 | 842 | if (info->jack_flips >= info->micd_num_modes * 10) { |
4f340333 MB |
843 | dev_dbg(arizona->dev, "Detected HP/line\n"); |
844 | arizona_identify_headphone(info); | |
845 | ||
f2c32a88 | 846 | info->detecting = false; |
9ef2224d | 847 | |
4f340333 | 848 | arizona_stop_mic(info); |
f2c32a88 MB |
849 | } else { |
850 | info->micd_mode++; | |
851 | if (info->micd_mode == info->micd_num_modes) | |
852 | info->micd_mode = 0; | |
853 | arizona_extcon_set_mode(info, info->micd_mode); | |
854 | ||
855 | info->jack_flips++; | |
856 | } | |
857 | ||
858 | goto handled; | |
859 | } | |
860 | ||
861 | /* | |
862 | * If we're still detecting and we detect a short then we've | |
34efe4dc | 863 | * got a headphone. Otherwise it's a button press. |
f2c32a88 | 864 | */ |
ffae24fe | 865 | if (val & MICD_LVL_0_TO_7) { |
f2c32a88 MB |
866 | if (info->mic) { |
867 | dev_dbg(arizona->dev, "Mic button detected\n"); | |
868 | ||
34efe4dc MB |
869 | lvl = val & ARIZONA_MICD_LVL_MASK; |
870 | lvl >>= ARIZONA_MICD_LVL_SHIFT; | |
871 | ||
41a57850 MB |
872 | for (i = 0; i < info->num_micd_ranges; i++) |
873 | input_report_key(info->input, | |
874 | info->micd_ranges[i].key, 0); | |
875 | ||
6fed4d86 MB |
876 | WARN_ON(!lvl); |
877 | WARN_ON(ffs(lvl) - 1 >= info->num_micd_ranges); | |
878 | if (lvl && ffs(lvl) - 1 < info->num_micd_ranges) { | |
879 | key = info->micd_ranges[ffs(lvl) - 1].key; | |
880 | input_report_key(info->input, key, 1); | |
881 | input_sync(info->input); | |
882 | } | |
34efe4dc | 883 | |
f2c32a88 MB |
884 | } else if (info->detecting) { |
885 | dev_dbg(arizona->dev, "Headphone detected\n"); | |
886 | info->detecting = false; | |
887 | arizona_stop_mic(info); | |
888 | ||
4f340333 | 889 | arizona_identify_headphone(info); |
f2c32a88 MB |
890 | } else { |
891 | dev_warn(arizona->dev, "Button with no mic: %x\n", | |
892 | val); | |
893 | } | |
894 | } else { | |
895 | dev_dbg(arizona->dev, "Mic button released\n"); | |
6fed4d86 | 896 | for (i = 0; i < info->num_micd_ranges; i++) |
34efe4dc | 897 | input_report_key(info->input, |
6fed4d86 | 898 | info->micd_ranges[i].key, 0); |
34efe4dc | 899 | input_sync(info->input); |
bbbd46e3 | 900 | arizona_extcon_pulse_micbias(info); |
f2c32a88 MB |
901 | } |
902 | ||
903 | handled: | |
939c5671 | 904 | if (info->detecting) |
df9a5ab4 MB |
905 | queue_delayed_work(system_power_efficient_wq, |
906 | &info->micd_timeout_work, | |
907 | msecs_to_jiffies(info->micd_timeout)); | |
939c5671 | 908 | |
f2c32a88 MB |
909 | pm_runtime_mark_last_busy(info->dev); |
910 | mutex_unlock(&info->lock); | |
cd59e796 MB |
911 | } |
912 | ||
913 | static irqreturn_t arizona_micdet(int irq, void *data) | |
914 | { | |
915 | struct arizona_extcon_info *info = data; | |
916 | struct arizona *arizona = info->arizona; | |
917 | int debounce = arizona->pdata.micd_detect_debounce; | |
918 | ||
919 | cancel_delayed_work_sync(&info->micd_detect_work); | |
920 | cancel_delayed_work_sync(&info->micd_timeout_work); | |
921 | ||
922 | mutex_lock(&info->lock); | |
923 | if (!info->detecting) | |
924 | debounce = 0; | |
925 | mutex_unlock(&info->lock); | |
926 | ||
927 | if (debounce) | |
df9a5ab4 MB |
928 | queue_delayed_work(system_power_efficient_wq, |
929 | &info->micd_detect_work, | |
930 | msecs_to_jiffies(debounce)); | |
cd59e796 MB |
931 | else |
932 | arizona_micd_detect(&info->micd_detect_work.work); | |
f2c32a88 MB |
933 | |
934 | return IRQ_HANDLED; | |
935 | } | |
936 | ||
0e27bd31 MB |
937 | static void arizona_hpdet_work(struct work_struct *work) |
938 | { | |
939 | struct arizona_extcon_info *info = container_of(work, | |
c2275d2f CC |
940 | struct arizona_extcon_info, |
941 | hpdet_work.work); | |
0e27bd31 MB |
942 | |
943 | mutex_lock(&info->lock); | |
944 | arizona_start_hpdet_acc_id(info); | |
945 | mutex_unlock(&info->lock); | |
946 | } | |
947 | ||
f2c32a88 MB |
948 | static irqreturn_t arizona_jackdet(int irq, void *data) |
949 | { | |
950 | struct arizona_extcon_info *info = data; | |
951 | struct arizona *arizona = info->arizona; | |
92a49871 | 952 | unsigned int val, present, mask; |
939c5671 | 953 | bool cancelled_hp, cancelled_mic; |
34efe4dc | 954 | int ret, i; |
f2c32a88 | 955 | |
939c5671 MB |
956 | cancelled_hp = cancel_delayed_work_sync(&info->hpdet_work); |
957 | cancelled_mic = cancel_delayed_work_sync(&info->micd_timeout_work); | |
f2c32a88 | 958 | |
a3e2078d | 959 | pm_runtime_get_sync(info->dev); |
0e27bd31 | 960 | |
f2c32a88 MB |
961 | mutex_lock(&info->lock); |
962 | ||
92a49871 MB |
963 | if (arizona->pdata.jd_gpio5) { |
964 | mask = ARIZONA_MICD_CLAMP_STS; | |
965 | present = 0; | |
966 | } else { | |
967 | mask = ARIZONA_JD1_STS; | |
968 | present = ARIZONA_JD1_STS; | |
969 | } | |
970 | ||
f2c32a88 MB |
971 | ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val); |
972 | if (ret != 0) { | |
973 | dev_err(arizona->dev, "Failed to read jackdet status: %d\n", | |
974 | ret); | |
975 | mutex_unlock(&info->lock); | |
976 | pm_runtime_put_autosuspend(info->dev); | |
977 | return IRQ_NONE; | |
978 | } | |
979 | ||
a3e2078d MB |
980 | val &= mask; |
981 | if (val == info->last_jackdet) { | |
982 | dev_dbg(arizona->dev, "Suppressing duplicate JACKDET\n"); | |
939c5671 | 983 | if (cancelled_hp) |
df9a5ab4 MB |
984 | queue_delayed_work(system_power_efficient_wq, |
985 | &info->hpdet_work, | |
986 | msecs_to_jiffies(HPDET_DEBOUNCE)); | |
a3e2078d | 987 | |
c2275d2f CC |
988 | if (cancelled_mic) { |
989 | int micd_timeout = info->micd_timeout; | |
990 | ||
df9a5ab4 MB |
991 | queue_delayed_work(system_power_efficient_wq, |
992 | &info->micd_timeout_work, | |
c2275d2f CC |
993 | msecs_to_jiffies(micd_timeout)); |
994 | } | |
939c5671 | 995 | |
a3e2078d MB |
996 | goto out; |
997 | } | |
998 | info->last_jackdet = val; | |
999 | ||
1000 | if (info->last_jackdet == present) { | |
f2c32a88 | 1001 | dev_dbg(arizona->dev, "Detected jack\n"); |
ef70a214 | 1002 | ret = extcon_set_cable_state_(info->edev, |
325c6423 | 1003 | ARIZONA_CABLE_MECHANICAL, true); |
f2c32a88 MB |
1004 | |
1005 | if (ret != 0) | |
1006 | dev_err(arizona->dev, "Mechanical report failed: %d\n", | |
1007 | ret); | |
1008 | ||
dd235eea MB |
1009 | if (!arizona->pdata.hpdet_acc_id) { |
1010 | info->detecting = true; | |
1011 | info->mic = false; | |
1012 | info->jack_flips = 0; | |
1013 | ||
1014 | arizona_start_mic(info); | |
1015 | } else { | |
df9a5ab4 MB |
1016 | queue_delayed_work(system_power_efficient_wq, |
1017 | &info->hpdet_work, | |
1018 | msecs_to_jiffies(HPDET_DEBOUNCE)); | |
dd235eea | 1019 | } |
4e616877 MB |
1020 | |
1021 | regmap_update_bits(arizona->regmap, | |
1022 | ARIZONA_JACK_DETECT_DEBOUNCE, | |
1023 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, 0); | |
f2c32a88 MB |
1024 | } else { |
1025 | dev_dbg(arizona->dev, "Detected jack removal\n"); | |
1026 | ||
1027 | arizona_stop_mic(info); | |
1028 | ||
dd235eea MB |
1029 | info->num_hpdet_res = 0; |
1030 | for (i = 0; i < ARRAY_SIZE(info->hpdet_res); i++) | |
1031 | info->hpdet_res[i] = 0; | |
1032 | info->mic = false; | |
bf14ee5a | 1033 | info->hpdet_done = false; |
9dd5e53d | 1034 | info->hpdet_retried = false; |
92a49871 | 1035 | |
6fed4d86 | 1036 | for (i = 0; i < info->num_micd_ranges; i++) |
34efe4dc | 1037 | input_report_key(info->input, |
6fed4d86 | 1038 | info->micd_ranges[i].key, 0); |
34efe4dc MB |
1039 | input_sync(info->input); |
1040 | ||
ef70a214 | 1041 | ret = extcon_update_state(info->edev, 0xffffffff, 0); |
f2c32a88 MB |
1042 | if (ret != 0) |
1043 | dev_err(arizona->dev, "Removal report failed: %d\n", | |
1044 | ret); | |
4e616877 MB |
1045 | |
1046 | regmap_update_bits(arizona->regmap, | |
1047 | ARIZONA_JACK_DETECT_DEBOUNCE, | |
1048 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, | |
1049 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB); | |
f2c32a88 MB |
1050 | } |
1051 | ||
7abd4e2a MB |
1052 | if (arizona->pdata.micd_timeout) |
1053 | info->micd_timeout = arizona->pdata.micd_timeout; | |
1054 | else | |
1055 | info->micd_timeout = DEFAULT_MICD_TIMEOUT; | |
1056 | ||
cb9005d7 | 1057 | out: |
5d9ab708 CK |
1058 | /* Clear trig_sts to make sure DCVDD is not forced up */ |
1059 | regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG, | |
1060 | ARIZONA_MICD_CLAMP_FALL_TRIG_STS | | |
1061 | ARIZONA_MICD_CLAMP_RISE_TRIG_STS | | |
1062 | ARIZONA_JD1_FALL_TRIG_STS | | |
1063 | ARIZONA_JD1_RISE_TRIG_STS); | |
1064 | ||
f2c32a88 MB |
1065 | mutex_unlock(&info->lock); |
1066 | ||
1067 | pm_runtime_mark_last_busy(info->dev); | |
1068 | pm_runtime_put_autosuspend(info->dev); | |
1069 | ||
1070 | return IRQ_HANDLED; | |
1071 | } | |
1072 | ||
6fed4d86 MB |
1073 | /* Map a level onto a slot in the register bank */ |
1074 | static void arizona_micd_set_level(struct arizona *arizona, int index, | |
1075 | unsigned int level) | |
1076 | { | |
1077 | int reg; | |
1078 | unsigned int mask; | |
1079 | ||
1080 | reg = ARIZONA_MIC_DETECT_LEVEL_4 - (index / 2); | |
1081 | ||
1082 | if (!(index % 2)) { | |
1083 | mask = 0x3f00; | |
1084 | level <<= 8; | |
1085 | } else { | |
1086 | mask = 0x3f; | |
1087 | } | |
1088 | ||
1089 | /* Program the level itself */ | |
1090 | regmap_update_bits(arizona->regmap, reg, mask, level); | |
1091 | } | |
1092 | ||
44f34fd4 | 1093 | static int arizona_extcon_probe(struct platform_device *pdev) |
f2c32a88 MB |
1094 | { |
1095 | struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); | |
6ac6b475 | 1096 | struct arizona_pdata *pdata = &arizona->pdata; |
f2c32a88 | 1097 | struct arizona_extcon_info *info; |
e56a0a57 | 1098 | unsigned int val; |
92a49871 | 1099 | int jack_irq_fall, jack_irq_rise; |
6fed4d86 | 1100 | int ret, mode, i, j; |
f2c32a88 | 1101 | |
bbbd46e3 MB |
1102 | if (!arizona->dapm || !arizona->dapm->card) |
1103 | return -EPROBE_DEFER; | |
1104 | ||
f2c32a88 MB |
1105 | info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); |
1106 | if (!info) { | |
8e5f5018 | 1107 | dev_err(&pdev->dev, "Failed to allocate memory\n"); |
d88cc367 | 1108 | return -ENOMEM; |
f2c32a88 MB |
1109 | } |
1110 | ||
1111 | info->micvdd = devm_regulator_get(arizona->dev, "MICVDD"); | |
1112 | if (IS_ERR(info->micvdd)) { | |
1113 | ret = PTR_ERR(info->micvdd); | |
1114 | dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret); | |
d88cc367 | 1115 | return ret; |
f2c32a88 MB |
1116 | } |
1117 | ||
1118 | mutex_init(&info->lock); | |
1119 | info->arizona = arizona; | |
1120 | info->dev = &pdev->dev; | |
a3e2078d | 1121 | info->last_jackdet = ~(ARIZONA_MICD_CLAMP_STS | ARIZONA_JD1_STS); |
0e27bd31 | 1122 | INIT_DELAYED_WORK(&info->hpdet_work, arizona_hpdet_work); |
cd59e796 | 1123 | INIT_DELAYED_WORK(&info->micd_detect_work, arizona_micd_detect); |
939c5671 | 1124 | INIT_DELAYED_WORK(&info->micd_timeout_work, arizona_micd_timeout_work); |
f2c32a88 MB |
1125 | platform_set_drvdata(pdev, info); |
1126 | ||
1127 | switch (arizona->type) { | |
1128 | case WM5102: | |
1129 | switch (arizona->rev) { | |
1130 | case 0: | |
1131 | info->micd_reva = true; | |
1132 | break; | |
1133 | default: | |
dab63eb2 | 1134 | info->micd_clamp = true; |
4f340333 | 1135 | info->hpdet_ip = 1; |
f2c32a88 MB |
1136 | break; |
1137 | } | |
1138 | break; | |
77438610 CK |
1139 | case WM5110: |
1140 | switch (arizona->rev) { | |
1141 | case 0 ... 2: | |
1142 | break; | |
1143 | default: | |
1144 | info->micd_clamp = true; | |
1145 | info->hpdet_ip = 2; | |
1146 | break; | |
1147 | } | |
1148 | break; | |
f2c32a88 MB |
1149 | default: |
1150 | break; | |
1151 | } | |
1152 | ||
ef70a214 CC |
1153 | info->edev = devm_extcon_dev_allocate(&pdev->dev, arizona_cable); |
1154 | if (IS_ERR(info->edev)) { | |
1155 | dev_err(&pdev->dev, "failed to allocate extcon device\n"); | |
1156 | return -ENOMEM; | |
1157 | } | |
1158 | info->edev->name = "Headset Jack"; | |
1159 | info->edev->dev.parent = arizona->dev; | |
f2c32a88 | 1160 | |
ef70a214 | 1161 | ret = devm_extcon_dev_register(&pdev->dev, info->edev); |
f2c32a88 | 1162 | if (ret < 0) { |
8e5f5018 | 1163 | dev_err(arizona->dev, "extcon_dev_register() failed: %d\n", |
f2c32a88 | 1164 | ret); |
d88cc367 | 1165 | return ret; |
f2c32a88 MB |
1166 | } |
1167 | ||
6fed4d86 MB |
1168 | info->input = devm_input_allocate_device(&pdev->dev); |
1169 | if (!info->input) { | |
1170 | dev_err(arizona->dev, "Can't allocate input dev\n"); | |
1171 | ret = -ENOMEM; | |
1172 | goto err_register; | |
1173 | } | |
1174 | ||
1175 | info->input->name = "Headset"; | |
1176 | info->input->phys = "arizona/extcon"; | |
1177 | info->input->dev.parent = &pdev->dev; | |
1178 | ||
f2c32a88 MB |
1179 | if (pdata->num_micd_configs) { |
1180 | info->micd_modes = pdata->micd_configs; | |
1181 | info->micd_num_modes = pdata->num_micd_configs; | |
1182 | } else { | |
1183 | info->micd_modes = micd_default_modes; | |
1184 | info->micd_num_modes = ARRAY_SIZE(micd_default_modes); | |
1185 | } | |
1186 | ||
1187 | if (arizona->pdata.micd_pol_gpio > 0) { | |
1188 | if (info->micd_modes[0].gpio) | |
1189 | mode = GPIOF_OUT_INIT_HIGH; | |
1190 | else | |
1191 | mode = GPIOF_OUT_INIT_LOW; | |
1192 | ||
1193 | ret = devm_gpio_request_one(&pdev->dev, | |
1194 | arizona->pdata.micd_pol_gpio, | |
1195 | mode, | |
1196 | "MICD polarity"); | |
1197 | if (ret != 0) { | |
1198 | dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", | |
1199 | arizona->pdata.micd_pol_gpio, ret); | |
1200 | goto err_register; | |
1201 | } | |
1202 | } | |
1203 | ||
1eda6aa7 MB |
1204 | if (arizona->pdata.hpdet_id_gpio > 0) { |
1205 | ret = devm_gpio_request_one(&pdev->dev, | |
1206 | arizona->pdata.hpdet_id_gpio, | |
1207 | GPIOF_OUT_INIT_LOW, | |
1208 | "HPDET"); | |
1209 | if (ret != 0) { | |
1210 | dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", | |
1211 | arizona->pdata.hpdet_id_gpio, ret); | |
1212 | goto err_register; | |
1213 | } | |
1214 | } | |
1215 | ||
b17e5462 MB |
1216 | if (arizona->pdata.micd_bias_start_time) |
1217 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
1218 | ARIZONA_MICD_BIAS_STARTTIME_MASK, | |
1219 | arizona->pdata.micd_bias_start_time | |
1220 | << ARIZONA_MICD_BIAS_STARTTIME_SHIFT); | |
1221 | ||
2e033db5 MB |
1222 | if (arizona->pdata.micd_rate) |
1223 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
1224 | ARIZONA_MICD_RATE_MASK, | |
1225 | arizona->pdata.micd_rate | |
1226 | << ARIZONA_MICD_RATE_SHIFT); | |
1227 | ||
1228 | if (arizona->pdata.micd_dbtime) | |
1229 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
1230 | ARIZONA_MICD_DBTIME_MASK, | |
1231 | arizona->pdata.micd_dbtime | |
1232 | << ARIZONA_MICD_DBTIME_SHIFT); | |
1233 | ||
6fed4d86 MB |
1234 | BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) != 0x40); |
1235 | ||
1236 | if (arizona->pdata.num_micd_ranges) { | |
1237 | info->micd_ranges = pdata->micd_ranges; | |
1238 | info->num_micd_ranges = pdata->num_micd_ranges; | |
1239 | } else { | |
1240 | info->micd_ranges = micd_default_ranges; | |
1241 | info->num_micd_ranges = ARRAY_SIZE(micd_default_ranges); | |
1242 | } | |
1243 | ||
1244 | if (arizona->pdata.num_micd_ranges > ARIZONA_MAX_MICD_RANGE) { | |
1245 | dev_err(arizona->dev, "Too many MICD ranges: %d\n", | |
1246 | arizona->pdata.num_micd_ranges); | |
1247 | } | |
1248 | ||
1249 | if (info->num_micd_ranges > 1) { | |
1250 | for (i = 1; i < info->num_micd_ranges; i++) { | |
1251 | if (info->micd_ranges[i - 1].max > | |
1252 | info->micd_ranges[i].max) { | |
1253 | dev_err(arizona->dev, | |
1254 | "MICD ranges must be sorted\n"); | |
1255 | ret = -EINVAL; | |
1256 | goto err_input; | |
1257 | } | |
1258 | } | |
1259 | } | |
1260 | ||
1261 | /* Disable all buttons by default */ | |
1262 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, | |
1263 | ARIZONA_MICD_LVL_SEL_MASK, 0x81); | |
1264 | ||
1265 | /* Set up all the buttons the user specified */ | |
1266 | for (i = 0; i < info->num_micd_ranges; i++) { | |
1267 | for (j = 0; j < ARRAY_SIZE(arizona_micd_levels); j++) | |
1268 | if (arizona_micd_levels[j] >= info->micd_ranges[i].max) | |
1269 | break; | |
1270 | ||
1271 | if (j == ARRAY_SIZE(arizona_micd_levels)) { | |
1272 | dev_err(arizona->dev, "Unsupported MICD level %d\n", | |
1273 | info->micd_ranges[i].max); | |
1274 | ret = -EINVAL; | |
1275 | goto err_input; | |
1276 | } | |
1277 | ||
1278 | dev_dbg(arizona->dev, "%d ohms for MICD threshold %d\n", | |
1279 | arizona_micd_levels[j], i); | |
1280 | ||
1281 | arizona_micd_set_level(arizona, i, j); | |
1282 | input_set_capability(info->input, EV_KEY, | |
1283 | info->micd_ranges[i].key); | |
1284 | ||
1285 | /* Enable reporting of that range */ | |
1286 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, | |
1287 | 1 << i, 1 << i); | |
1288 | } | |
1289 | ||
1290 | /* Set all the remaining keys to a maximum */ | |
1291 | for (; i < ARIZONA_MAX_MICD_RANGE; i++) | |
1292 | arizona_micd_set_level(arizona, i, 0x3f); | |
1293 | ||
dab63eb2 | 1294 | /* |
92a49871 MB |
1295 | * If we have a clamp use it, activating in conjunction with |
1296 | * GPIO5 if that is connected for jack detect operation. | |
dab63eb2 MB |
1297 | */ |
1298 | if (info->micd_clamp) { | |
92a49871 | 1299 | if (arizona->pdata.jd_gpio5) { |
e56a0a57 MB |
1300 | /* Put the GPIO into input mode with optional pull */ |
1301 | val = 0xc101; | |
1302 | if (arizona->pdata.jd_gpio5_nopull) | |
1303 | val &= ~ARIZONA_GPN_PU; | |
1304 | ||
92a49871 | 1305 | regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL, |
e56a0a57 | 1306 | val); |
92a49871 MB |
1307 | |
1308 | regmap_update_bits(arizona->regmap, | |
1309 | ARIZONA_MICD_CLAMP_CONTROL, | |
1310 | ARIZONA_MICD_CLAMP_MODE_MASK, 0x9); | |
1311 | } else { | |
1312 | regmap_update_bits(arizona->regmap, | |
1313 | ARIZONA_MICD_CLAMP_CONTROL, | |
1314 | ARIZONA_MICD_CLAMP_MODE_MASK, 0x4); | |
1315 | } | |
1316 | ||
dab63eb2 MB |
1317 | regmap_update_bits(arizona->regmap, |
1318 | ARIZONA_JACK_DETECT_DEBOUNCE, | |
1319 | ARIZONA_MICD_CLAMP_DB, | |
1320 | ARIZONA_MICD_CLAMP_DB); | |
1321 | } | |
1322 | ||
f2c32a88 MB |
1323 | arizona_extcon_set_mode(info, 0); |
1324 | ||
1325 | pm_runtime_enable(&pdev->dev); | |
1326 | pm_runtime_idle(&pdev->dev); | |
1327 | pm_runtime_get_sync(&pdev->dev); | |
1328 | ||
92a49871 MB |
1329 | if (arizona->pdata.jd_gpio5) { |
1330 | jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; | |
1331 | jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; | |
1332 | } else { | |
1333 | jack_irq_rise = ARIZONA_IRQ_JD_RISE; | |
1334 | jack_irq_fall = ARIZONA_IRQ_JD_FALL; | |
1335 | } | |
1336 | ||
1337 | ret = arizona_request_irq(arizona, jack_irq_rise, | |
f2c32a88 MB |
1338 | "JACKDET rise", arizona_jackdet, info); |
1339 | if (ret != 0) { | |
1340 | dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n", | |
1341 | ret); | |
34efe4dc | 1342 | goto err_input; |
f2c32a88 MB |
1343 | } |
1344 | ||
92a49871 | 1345 | ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1); |
f2c32a88 MB |
1346 | if (ret != 0) { |
1347 | dev_err(&pdev->dev, "Failed to set JD rise IRQ wake: %d\n", | |
1348 | ret); | |
1349 | goto err_rise; | |
1350 | } | |
1351 | ||
92a49871 | 1352 | ret = arizona_request_irq(arizona, jack_irq_fall, |
f2c32a88 MB |
1353 | "JACKDET fall", arizona_jackdet, info); |
1354 | if (ret != 0) { | |
1355 | dev_err(&pdev->dev, "Failed to get JD fall IRQ: %d\n", ret); | |
1356 | goto err_rise_wake; | |
1357 | } | |
1358 | ||
92a49871 | 1359 | ret = arizona_set_irq_wake(arizona, jack_irq_fall, 1); |
f2c32a88 MB |
1360 | if (ret != 0) { |
1361 | dev_err(&pdev->dev, "Failed to set JD fall IRQ wake: %d\n", | |
1362 | ret); | |
1363 | goto err_fall; | |
1364 | } | |
1365 | ||
1366 | ret = arizona_request_irq(arizona, ARIZONA_IRQ_MICDET, | |
1367 | "MICDET", arizona_micdet, info); | |
1368 | if (ret != 0) { | |
1369 | dev_err(&pdev->dev, "Failed to get MICDET IRQ: %d\n", ret); | |
1370 | goto err_fall_wake; | |
1371 | } | |
1372 | ||
4f340333 MB |
1373 | ret = arizona_request_irq(arizona, ARIZONA_IRQ_HPDET, |
1374 | "HPDET", arizona_hpdet_irq, info); | |
1375 | if (ret != 0) { | |
1376 | dev_err(&pdev->dev, "Failed to get HPDET IRQ: %d\n", ret); | |
1377 | goto err_micdet; | |
1378 | } | |
1379 | ||
f2c32a88 MB |
1380 | arizona_clk32k_enable(arizona); |
1381 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_DEBOUNCE, | |
1382 | ARIZONA_JD1_DB, ARIZONA_JD1_DB); | |
1383 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, | |
1384 | ARIZONA_JD1_ENA, ARIZONA_JD1_ENA); | |
1385 | ||
b8575a11 MB |
1386 | ret = regulator_allow_bypass(info->micvdd, true); |
1387 | if (ret != 0) | |
1388 | dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n", | |
1389 | ret); | |
1390 | ||
f2c32a88 MB |
1391 | pm_runtime_put(&pdev->dev); |
1392 | ||
34efe4dc MB |
1393 | ret = input_register_device(info->input); |
1394 | if (ret) { | |
1395 | dev_err(&pdev->dev, "Can't register input device: %d\n", ret); | |
4f340333 | 1396 | goto err_hpdet; |
34efe4dc MB |
1397 | } |
1398 | ||
f2c32a88 MB |
1399 | return 0; |
1400 | ||
4f340333 MB |
1401 | err_hpdet: |
1402 | arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); | |
80732cc1 MB |
1403 | err_micdet: |
1404 | arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); | |
f2c32a88 | 1405 | err_fall_wake: |
92a49871 | 1406 | arizona_set_irq_wake(arizona, jack_irq_fall, 0); |
f2c32a88 | 1407 | err_fall: |
92a49871 | 1408 | arizona_free_irq(arizona, jack_irq_fall, info); |
f2c32a88 | 1409 | err_rise_wake: |
92a49871 | 1410 | arizona_set_irq_wake(arizona, jack_irq_rise, 0); |
f2c32a88 | 1411 | err_rise: |
92a49871 | 1412 | arizona_free_irq(arizona, jack_irq_rise, info); |
34efe4dc | 1413 | err_input: |
f2c32a88 MB |
1414 | err_register: |
1415 | pm_runtime_disable(&pdev->dev); | |
f2c32a88 MB |
1416 | return ret; |
1417 | } | |
1418 | ||
93ed0327 | 1419 | static int arizona_extcon_remove(struct platform_device *pdev) |
f2c32a88 MB |
1420 | { |
1421 | struct arizona_extcon_info *info = platform_get_drvdata(pdev); | |
1422 | struct arizona *arizona = info->arizona; | |
92a49871 | 1423 | int jack_irq_rise, jack_irq_fall; |
f2c32a88 MB |
1424 | |
1425 | pm_runtime_disable(&pdev->dev); | |
1426 | ||
dab63eb2 MB |
1427 | regmap_update_bits(arizona->regmap, |
1428 | ARIZONA_MICD_CLAMP_CONTROL, | |
1429 | ARIZONA_MICD_CLAMP_MODE_MASK, 0); | |
1430 | ||
92a49871 MB |
1431 | if (arizona->pdata.jd_gpio5) { |
1432 | jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; | |
1433 | jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; | |
1434 | } else { | |
1435 | jack_irq_rise = ARIZONA_IRQ_JD_RISE; | |
1436 | jack_irq_fall = ARIZONA_IRQ_JD_FALL; | |
1437 | } | |
1438 | ||
1439 | arizona_set_irq_wake(arizona, jack_irq_rise, 0); | |
1440 | arizona_set_irq_wake(arizona, jack_irq_fall, 0); | |
1441 | arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); | |
f2c32a88 | 1442 | arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); |
92a49871 MB |
1443 | arizona_free_irq(arizona, jack_irq_rise, info); |
1444 | arizona_free_irq(arizona, jack_irq_fall, info); | |
0e27bd31 | 1445 | cancel_delayed_work_sync(&info->hpdet_work); |
f2c32a88 MB |
1446 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, |
1447 | ARIZONA_JD1_ENA, 0); | |
1448 | arizona_clk32k_disable(arizona); | |
f2c32a88 MB |
1449 | |
1450 | return 0; | |
1451 | } | |
1452 | ||
1453 | static struct platform_driver arizona_extcon_driver = { | |
1454 | .driver = { | |
1455 | .name = "arizona-extcon", | |
1456 | .owner = THIS_MODULE, | |
1457 | }, | |
1458 | .probe = arizona_extcon_probe, | |
5f7e2228 | 1459 | .remove = arizona_extcon_remove, |
f2c32a88 MB |
1460 | }; |
1461 | ||
1462 | module_platform_driver(arizona_extcon_driver); | |
1463 | ||
1464 | MODULE_DESCRIPTION("Arizona Extcon driver"); | |
1465 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
1466 | MODULE_LICENSE("GPL"); | |
1467 | MODULE_ALIAS("platform:extcon-arizona"); |