1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * da7219-aad.c - Dialog DA7219 ALSA SoC AAD Driver
4 *
5 * Copyright (c) 2015 Dialog Semiconductor Ltd.
6 *
7 * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
8 */
9
10 #include <linux/module.h>
11 #include <linux/platform_device.h>
12 #include <linux/clk.h>
13 #include <linux/i2c.h>
14 #include <linux/property.h>
15 #include <linux/pm_wakeirq.h>
16 #include <linux/slab.h>
17 #include <linux/delay.h>
18 #include <linux/workqueue.h>
19 #include <sound/soc.h>
20 #include <sound/jack.h>
21 #include <sound/da7219.h>
22
23 #include "da7219.h"
24 #include "da7219-aad.h"
25
26
27 /*
28 * Detection control
29 */
30
da7219_aad_jack_det(struct snd_soc_component * component,struct snd_soc_jack * jack)31 void da7219_aad_jack_det(struct snd_soc_component *component, struct snd_soc_jack *jack)
32 {
33 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
34
35 da7219->aad->jack = jack;
36 da7219->aad->jack_inserted = false;
37
38 /* Send an initial empty report */
39 snd_soc_jack_report(jack, 0, DA7219_AAD_REPORT_ALL_MASK);
40
41 /* Enable/Disable jack detection */
42 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
43 DA7219_ACCDET_EN_MASK,
44 (jack ? DA7219_ACCDET_EN_MASK : 0));
45 }
46
47 /*
48 * Button/HPTest work
49 */
50
da7219_aad_btn_det_work(struct work_struct * work)51 static void da7219_aad_btn_det_work(struct work_struct *work)
52 {
53 struct da7219_aad_priv *da7219_aad =
54 container_of(work, struct da7219_aad_priv, btn_det_work);
55 struct snd_soc_component *component = da7219_aad->component;
56 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
57 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
58 u8 statusa, micbias_ctrl;
59 bool micbias_up = false;
60 int retries = 0;
61
62 /* Drive headphones/lineout */
63 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
64 DA7219_HP_L_AMP_OE_MASK,
65 DA7219_HP_L_AMP_OE_MASK);
66 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
67 DA7219_HP_R_AMP_OE_MASK,
68 DA7219_HP_R_AMP_OE_MASK);
69
70 /* Make sure mic bias is up */
71 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
72 snd_soc_dapm_sync(dapm);
73
74 do {
75 statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A);
76 if (statusa & DA7219_MICBIAS_UP_STS_MASK)
77 micbias_up = true;
78 else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES)
79 msleep(DA7219_AAD_MICBIAS_CHK_DELAY);
80 } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES));
81
82 if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES)
83 dev_warn(component->dev, "Mic bias status check timed out");
84
85 da7219->micbias_on_event = true;
86
87 /*
88 * Mic bias pulse required to enable mic, must be done before enabling
89 * button detection to prevent erroneous button readings.
90 */
91 if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) {
92 /* Pulse higher level voltage */
93 micbias_ctrl = snd_soc_component_read(component, DA7219_MICBIAS_CTRL);
94 snd_soc_component_update_bits(component, DA7219_MICBIAS_CTRL,
95 DA7219_MICBIAS1_LEVEL_MASK,
96 da7219_aad->micbias_pulse_lvl);
97 msleep(da7219_aad->micbias_pulse_time);
98 snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_ctrl);
99
100 }
101
102 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
103 DA7219_BUTTON_CONFIG_MASK,
104 da7219_aad->btn_cfg);
105 }
106
da7219_aad_hptest_work(struct work_struct * work)107 static void da7219_aad_hptest_work(struct work_struct *work)
108 {
109 struct da7219_aad_priv *da7219_aad =
110 container_of(work, struct da7219_aad_priv, hptest_work);
111 struct snd_soc_component *component = da7219_aad->component;
112 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
113 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
114
115 __le16 tonegen_freq_hptest;
116 u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8;
117 int report = 0, ret;
118
119 /* Lock DAPM, Kcontrols affected by this test and the PLL */
120 snd_soc_dapm_mutex_lock(dapm);
121 mutex_lock(&da7219->ctrl_lock);
122 mutex_lock(&da7219->pll_lock);
123
124 /* Ensure MCLK is available for HP test procedure */
125 if (da7219->mclk) {
126 ret = clk_prepare_enable(da7219->mclk);
127 if (ret) {
128 dev_err(component->dev, "Failed to enable mclk - %d\n", ret);
129 mutex_unlock(&da7219->pll_lock);
130 mutex_unlock(&da7219->ctrl_lock);
131 snd_soc_dapm_mutex_unlock(dapm);
132 return;
133 }
134 }
135
136 /*
137 * If MCLK not present, then we're using the internal oscillator and
138 * require different frequency settings to achieve the same result.
139 *
140 * If MCLK is present, but PLL is not enabled then we enable it here to
141 * ensure a consistent detection procedure.
142 */
143 pll_srm_sts = snd_soc_component_read(component, DA7219_PLL_SRM_STS);
144 if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) {
145 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
146
147 pll_ctrl = snd_soc_component_read(component, DA7219_PLL_CTRL);
148 if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)
149 da7219_set_pll(component, DA7219_SYSCLK_PLL,
150 DA7219_PLL_FREQ_OUT_98304);
151 } else {
152 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC);
153 }
154
155 /* Ensure gain ramping at fastest rate */
156 gain_ramp_ctrl = snd_soc_component_read(component, DA7219_GAIN_RAMP_CTRL);
157 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8);
158
159 /* Bypass cache so it saves current settings */
160 regcache_cache_bypass(da7219->regmap, true);
161
162 /* Make sure Tone Generator is disabled */
163 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0);
164
165 /* Enable HPTest block, 1KOhms check */
166 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8,
167 DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK,
168 DA7219_HPTEST_EN_MASK |
169 DA7219_HPTEST_RES_SEL_1KOHMS);
170
171 /* Set gains to 0db */
172 snd_soc_component_write(component, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
173 snd_soc_component_write(component, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
174 snd_soc_component_write(component, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB);
175 snd_soc_component_write(component, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB);
176
177 /* Disable DAC filters, EQs and soft mute */
178 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK,
179 0);
180 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK,
181 0);
182 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS5,
183 DA7219_DAC_SOFTMUTE_EN_MASK, 0);
184
185 /* Enable HP left & right paths */
186 snd_soc_component_update_bits(component, DA7219_CP_CTRL, DA7219_CP_EN_MASK,
187 DA7219_CP_EN_MASK);
188 snd_soc_component_update_bits(component, DA7219_DIG_ROUTING_DAC,
189 DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK,
190 DA7219_DAC_L_SRC_TONEGEN |
191 DA7219_DAC_R_SRC_TONEGEN);
192 snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL,
193 DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK,
194 DA7219_DAC_L_EN_MASK);
195 snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL,
196 DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK,
197 DA7219_DAC_R_EN_MASK);
198 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_SELECT,
199 DA7219_MIXOUT_L_MIX_SELECT_MASK,
200 DA7219_MIXOUT_L_MIX_SELECT_MASK);
201 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_SELECT,
202 DA7219_MIXOUT_R_MIX_SELECT_MASK,
203 DA7219_MIXOUT_R_MIX_SELECT_MASK);
204 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1L,
205 DA7219_OUTFILT_ST_1L_SRC_MASK,
206 DA7219_DMIX_ST_SRC_OUTFILT1L);
207 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1R,
208 DA7219_OUTFILT_ST_1R_SRC_MASK,
209 DA7219_DMIX_ST_SRC_OUTFILT1R);
210 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_CTRL,
211 DA7219_MIXOUT_L_AMP_EN_MASK,
212 DA7219_MIXOUT_L_AMP_EN_MASK);
213 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_CTRL,
214 DA7219_MIXOUT_R_AMP_EN_MASK,
215 DA7219_MIXOUT_R_AMP_EN_MASK);
216 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
217 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK,
218 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK);
219 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
220 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK,
221 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK);
222 msleep(DA7219_SETTLING_DELAY);
223 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
224 DA7219_HP_L_AMP_MUTE_EN_MASK |
225 DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0);
226 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
227 DA7219_HP_R_AMP_MUTE_EN_MASK |
228 DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0);
229
230 /*
231 * If we're running from the internal oscillator then give audio paths
232 * time to settle before running test.
233 */
234 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
235 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
236
237 /* Configure & start Tone Generator */
238 snd_soc_component_write(component, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK);
239 regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
240 &tonegen_freq_hptest, sizeof(tonegen_freq_hptest));
241 snd_soc_component_update_bits(component, DA7219_TONE_GEN_CFG2,
242 DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK,
243 DA7219_SWG_SEL_SRAMP |
244 DA7219_TONE_GEN_GAIN_MINUS_15DB);
245 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK);
246
247 msleep(DA7219_AAD_HPTEST_PERIOD);
248
249 /* Grab comparator reading */
250 accdet_cfg8 = snd_soc_component_read(component, DA7219_ACCDET_CONFIG_8);
251 if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK)
252 report |= SND_JACK_HEADPHONE;
253 else
254 report |= SND_JACK_LINEOUT;
255
256 /* Stop tone generator */
257 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0);
258
259 msleep(DA7219_AAD_HPTEST_PERIOD);
260
261 /* Restore original settings from cache */
262 regcache_mark_dirty(da7219->regmap);
263 regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL,
264 DA7219_HP_R_CTRL);
265 msleep(DA7219_SETTLING_DELAY);
266 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL,
267 DA7219_MIXOUT_R_CTRL);
268 regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L,
269 DA7219_DROUTING_ST_OUTFILT_1R);
270 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT,
271 DA7219_MIXOUT_R_SELECT);
272 regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL,
273 DA7219_DAC_R_CTRL);
274 regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC,
275 DA7219_DIG_ROUTING_DAC);
276 regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL);
277 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5,
278 DA7219_DAC_FILTERS5);
279 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4,
280 DA7219_DAC_FILTERS1);
281 regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN,
282 DA7219_HP_R_GAIN);
283 regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN,
284 DA7219_DAC_R_GAIN);
285 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER,
286 DA7219_TONE_GEN_ON_PER);
287 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
288 DA7219_TONE_GEN_FREQ1_U);
289 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1,
290 DA7219_TONE_GEN_CFG2);
291
292 regcache_cache_bypass(da7219->regmap, false);
293
294 /* Disable HPTest block */
295 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8,
296 DA7219_HPTEST_EN_MASK, 0);
297
298 /*
299 * If we're running from the internal oscillator then give audio paths
300 * time to settle before allowing headphones to be driven as required.
301 */
302 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
303 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
304
305 /* Restore gain ramping rate */
306 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl);
307
308 /* Drive Headphones/lineout */
309 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK,
310 DA7219_HP_L_AMP_OE_MASK);
311 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK,
312 DA7219_HP_R_AMP_OE_MASK);
313
314 /* Restore PLL to previous configuration, if re-configured */
315 if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) &&
316 ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS))
317 da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0);
318
319 /* Remove MCLK, if previously enabled */
320 if (da7219->mclk)
321 clk_disable_unprepare(da7219->mclk);
322
323 mutex_unlock(&da7219->pll_lock);
324 mutex_unlock(&da7219->ctrl_lock);
325 snd_soc_dapm_mutex_unlock(dapm);
326
327 /*
328 * Only send report if jack hasn't been removed during process,
329 * otherwise it's invalid and we drop it.
330 */
331 if (da7219_aad->jack_inserted)
332 snd_soc_jack_report(da7219_aad->jack, report,
333 SND_JACK_HEADSET | SND_JACK_LINEOUT);
334 }
335
da7219_aad_jack_det_work(struct work_struct * work)336 static void da7219_aad_jack_det_work(struct work_struct *work)
337 {
338 struct da7219_aad_priv *da7219_aad =
339 container_of(work, struct da7219_aad_priv, jack_det_work.work);
340 struct snd_soc_component *component = da7219_aad->component;
341
342 /* Enable ground switch */
343 snd_soc_component_update_bits(component, 0xFB, 0x01, 0x01);
344 }
345
346 /*
347 * IRQ
348 */
349
da7219_aad_irq_thread(int irq,void * data)350 static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
351 {
352 struct da7219_aad_priv *da7219_aad = data;
353 struct snd_soc_component *component = da7219_aad->component;
354 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
355 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
356 u8 events[DA7219_AAD_IRQ_REG_MAX];
357 u8 statusa;
358 int i, ret, report = 0, mask = 0;
359
360 /* Read current IRQ events */
361 ret = regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
362 events, DA7219_AAD_IRQ_REG_MAX);
363 if (ret) {
364 dev_warn_ratelimited(component->dev, "Failed to read IRQ events: %d\n", ret);
365 return IRQ_NONE;
366 }
367
368 if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B])
369 return IRQ_NONE;
370
371 /* Read status register for jack insertion & type status */
372 statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A);
373
374 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_INSERTED_MASK) {
375 u8 srm_st;
376 int delay = 0;
377
378 srm_st = snd_soc_component_read(component,
379 DA7219_PLL_SRM_STS) & DA7219_PLL_SRM_STS_MCLK;
380 delay = (da7219_aad->gnd_switch_delay * ((srm_st == 0x0) ? 2 : 1) - 2);
381 queue_delayed_work(da7219_aad->aad_wq,
382 &da7219_aad->jack_det_work,
383 msecs_to_jiffies(delay));
384 }
385
386 /* Clear events */
387 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
388 events, DA7219_AAD_IRQ_REG_MAX);
389
390 dev_dbg(component->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n",
391 events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B],
392 statusa);
393
394 if (statusa & DA7219_JACK_INSERTION_STS_MASK) {
395 /* Jack Insertion */
396 if (events[DA7219_AAD_IRQ_REG_A] &
397 DA7219_E_JACK_INSERTED_MASK) {
398 report |= SND_JACK_MECHANICAL;
399 mask |= SND_JACK_MECHANICAL;
400 da7219_aad->jack_inserted = true;
401 }
402
403 /* Jack type detection */
404 if (events[DA7219_AAD_IRQ_REG_A] &
405 DA7219_E_JACK_DETECT_COMPLETE_MASK) {
406 /*
407 * If 4-pole, then enable button detection, else perform
408 * HP impedance test to determine output type to report.
409 *
410 * We schedule work here as the tasks themselves can
411 * take time to complete, and in particular for hptest
412 * we want to be able to check if the jack was removed
413 * during the procedure as this will invalidate the
414 * result. By doing this as work, the IRQ thread can
415 * handle a removal, and we can check at the end of
416 * hptest if we have a valid result or not.
417 */
418
419 cancel_delayed_work_sync(&da7219_aad->jack_det_work);
420 /* Disable ground switch */
421 snd_soc_component_update_bits(component, 0xFB, 0x01, 0x00);
422
423 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
424 report |= SND_JACK_HEADSET;
425 mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT;
426 queue_work(da7219_aad->aad_wq, &da7219_aad->btn_det_work);
427 } else {
428 queue_work(da7219_aad->aad_wq, &da7219_aad->hptest_work);
429 }
430 }
431
432 /* Button support for 4-pole jack */
433 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
434 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
435 /* Button Press */
436 if (events[DA7219_AAD_IRQ_REG_B] &
437 (DA7219_E_BUTTON_A_PRESSED_MASK << i)) {
438 report |= SND_JACK_BTN_0 >> i;
439 mask |= SND_JACK_BTN_0 >> i;
440 }
441 }
442 snd_soc_jack_report(da7219_aad->jack, report, mask);
443
444 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
445 /* Button Release */
446 if (events[DA7219_AAD_IRQ_REG_B] &
447 (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) {
448 report &= ~(SND_JACK_BTN_0 >> i);
449 mask |= SND_JACK_BTN_0 >> i;
450 }
451 }
452 }
453 } else {
454 /* Jack removal */
455 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) {
456 report = 0;
457 mask |= DA7219_AAD_REPORT_ALL_MASK;
458 da7219_aad->jack_inserted = false;
459
460 /* Cancel any pending work */
461 cancel_delayed_work_sync(&da7219_aad->jack_det_work);
462 cancel_work_sync(&da7219_aad->btn_det_work);
463 cancel_work_sync(&da7219_aad->hptest_work);
464
465 /* Un-drive headphones/lineout */
466 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
467 DA7219_HP_R_AMP_OE_MASK, 0);
468 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
469 DA7219_HP_L_AMP_OE_MASK, 0);
470
471 /* Ensure button detection disabled */
472 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
473 DA7219_BUTTON_CONFIG_MASK, 0);
474
475 da7219->micbias_on_event = false;
476
477 /* Disable mic bias */
478 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
479 snd_soc_dapm_sync(dapm);
480
481 /* Disable ground switch */
482 snd_soc_component_update_bits(component, 0xFB, 0x01, 0x00);
483 }
484 }
485
486 snd_soc_jack_report(da7219_aad->jack, report, mask);
487
488 return IRQ_HANDLED;
489 }
490
491 /*
492 * DT/ACPI to pdata conversion
493 */
494
495 static enum da7219_aad_micbias_pulse_lvl
da7219_aad_fw_micbias_pulse_lvl(struct device * dev,u32 val)496 da7219_aad_fw_micbias_pulse_lvl(struct device *dev, u32 val)
497 {
498 switch (val) {
499 case 2800:
500 return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V;
501 case 2900:
502 return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V;
503 default:
504 dev_warn(dev, "Invalid micbias pulse level");
505 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
506 }
507 }
508
509 static enum da7219_aad_btn_cfg
da7219_aad_fw_btn_cfg(struct device * dev,u32 val)510 da7219_aad_fw_btn_cfg(struct device *dev, u32 val)
511 {
512 switch (val) {
513 case 2:
514 return DA7219_AAD_BTN_CFG_2MS;
515 case 5:
516 return DA7219_AAD_BTN_CFG_5MS;
517 case 10:
518 return DA7219_AAD_BTN_CFG_10MS;
519 case 50:
520 return DA7219_AAD_BTN_CFG_50MS;
521 case 100:
522 return DA7219_AAD_BTN_CFG_100MS;
523 case 200:
524 return DA7219_AAD_BTN_CFG_200MS;
525 case 500:
526 return DA7219_AAD_BTN_CFG_500MS;
527 default:
528 dev_warn(dev, "Invalid button config");
529 return DA7219_AAD_BTN_CFG_10MS;
530 }
531 }
532
533 static enum da7219_aad_mic_det_thr
da7219_aad_fw_mic_det_thr(struct device * dev,u32 val)534 da7219_aad_fw_mic_det_thr(struct device *dev, u32 val)
535 {
536 switch (val) {
537 case 200:
538 return DA7219_AAD_MIC_DET_THR_200_OHMS;
539 case 500:
540 return DA7219_AAD_MIC_DET_THR_500_OHMS;
541 case 750:
542 return DA7219_AAD_MIC_DET_THR_750_OHMS;
543 case 1000:
544 return DA7219_AAD_MIC_DET_THR_1000_OHMS;
545 default:
546 dev_warn(dev, "Invalid mic detect threshold");
547 return DA7219_AAD_MIC_DET_THR_500_OHMS;
548 }
549 }
550
551 static enum da7219_aad_jack_ins_deb
da7219_aad_fw_jack_ins_deb(struct device * dev,u32 val)552 da7219_aad_fw_jack_ins_deb(struct device *dev, u32 val)
553 {
554 switch (val) {
555 case 5:
556 return DA7219_AAD_JACK_INS_DEB_5MS;
557 case 10:
558 return DA7219_AAD_JACK_INS_DEB_10MS;
559 case 20:
560 return DA7219_AAD_JACK_INS_DEB_20MS;
561 case 50:
562 return DA7219_AAD_JACK_INS_DEB_50MS;
563 case 100:
564 return DA7219_AAD_JACK_INS_DEB_100MS;
565 case 200:
566 return DA7219_AAD_JACK_INS_DEB_200MS;
567 case 500:
568 return DA7219_AAD_JACK_INS_DEB_500MS;
569 case 1000:
570 return DA7219_AAD_JACK_INS_DEB_1S;
571 default:
572 dev_warn(dev, "Invalid jack insert debounce");
573 return DA7219_AAD_JACK_INS_DEB_20MS;
574 }
575 }
576
577 static enum da7219_aad_jack_ins_det_pty
da7219_aad_fw_jack_ins_det_pty(struct device * dev,const char * str)578 da7219_aad_fw_jack_ins_det_pty(struct device *dev, const char *str)
579 {
580 if (!strcmp(str, "low")) {
581 return DA7219_AAD_JACK_INS_DET_PTY_LOW;
582 } else if (!strcmp(str, "high")) {
583 return DA7219_AAD_JACK_INS_DET_PTY_HIGH;
584 } else {
585 dev_warn(dev, "Invalid jack insertion detection polarity");
586 return DA7219_AAD_JACK_INS_DET_PTY_LOW;
587 }
588 }
589
590 static enum da7219_aad_jack_det_rate
da7219_aad_fw_jack_det_rate(struct device * dev,const char * str)591 da7219_aad_fw_jack_det_rate(struct device *dev, const char *str)
592 {
593 if (!strcmp(str, "32_64")) {
594 return DA7219_AAD_JACK_DET_RATE_32_64MS;
595 } else if (!strcmp(str, "64_128")) {
596 return DA7219_AAD_JACK_DET_RATE_64_128MS;
597 } else if (!strcmp(str, "128_256")) {
598 return DA7219_AAD_JACK_DET_RATE_128_256MS;
599 } else if (!strcmp(str, "256_512")) {
600 return DA7219_AAD_JACK_DET_RATE_256_512MS;
601 } else {
602 dev_warn(dev, "Invalid jack detect rate");
603 return DA7219_AAD_JACK_DET_RATE_256_512MS;
604 }
605 }
606
607 static enum da7219_aad_jack_rem_deb
da7219_aad_fw_jack_rem_deb(struct device * dev,u32 val)608 da7219_aad_fw_jack_rem_deb(struct device *dev, u32 val)
609 {
610 switch (val) {
611 case 1:
612 return DA7219_AAD_JACK_REM_DEB_1MS;
613 case 5:
614 return DA7219_AAD_JACK_REM_DEB_5MS;
615 case 10:
616 return DA7219_AAD_JACK_REM_DEB_10MS;
617 case 20:
618 return DA7219_AAD_JACK_REM_DEB_20MS;
619 default:
620 dev_warn(dev, "Invalid jack removal debounce");
621 return DA7219_AAD_JACK_REM_DEB_1MS;
622 }
623 }
624
625 static enum da7219_aad_btn_avg
da7219_aad_fw_btn_avg(struct device * dev,u32 val)626 da7219_aad_fw_btn_avg(struct device *dev, u32 val)
627 {
628 switch (val) {
629 case 1:
630 return DA7219_AAD_BTN_AVG_1;
631 case 2:
632 return DA7219_AAD_BTN_AVG_2;
633 case 4:
634 return DA7219_AAD_BTN_AVG_4;
635 case 8:
636 return DA7219_AAD_BTN_AVG_8;
637 default:
638 dev_warn(dev, "Invalid button average value");
639 return DA7219_AAD_BTN_AVG_2;
640 }
641 }
642
643 static enum da7219_aad_adc_1bit_rpt
da7219_aad_fw_adc_1bit_rpt(struct device * dev,u32 val)644 da7219_aad_fw_adc_1bit_rpt(struct device *dev, u32 val)
645 {
646 switch (val) {
647 case 1:
648 return DA7219_AAD_ADC_1BIT_RPT_1;
649 case 2:
650 return DA7219_AAD_ADC_1BIT_RPT_2;
651 case 4:
652 return DA7219_AAD_ADC_1BIT_RPT_4;
653 case 8:
654 return DA7219_AAD_ADC_1BIT_RPT_8;
655 default:
656 dev_warn(dev, "Invalid ADC 1-bit repeat value");
657 return DA7219_AAD_ADC_1BIT_RPT_1;
658 }
659 }
660
da7219_aad_fw_to_pdata(struct device * dev)661 static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct device *dev)
662 {
663 struct i2c_client *i2c = to_i2c_client(dev);
664 struct fwnode_handle *aad_np;
665 struct da7219_aad_pdata *aad_pdata;
666 const char *fw_str;
667 u32 fw_val32;
668
669 aad_np = device_get_named_child_node(dev, "da7219_aad");
670 if (!aad_np)
671 return NULL;
672
673 aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL);
674 if (!aad_pdata)
675 return NULL;
676
677 aad_pdata->irq = i2c->irq;
678
679 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl",
680 &fw_val32) >= 0)
681 aad_pdata->micbias_pulse_lvl =
682 da7219_aad_fw_micbias_pulse_lvl(dev, fw_val32);
683 else
684 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
685
686 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time",
687 &fw_val32) >= 0)
688 aad_pdata->micbias_pulse_time = fw_val32;
689
690 if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0)
691 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(dev, fw_val32);
692 else
693 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS;
694
695 if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0)
696 aad_pdata->mic_det_thr =
697 da7219_aad_fw_mic_det_thr(dev, fw_val32);
698 else
699 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS;
700
701 if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0)
702 aad_pdata->jack_ins_deb =
703 da7219_aad_fw_jack_ins_deb(dev, fw_val32);
704 else
705 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS;
706
707 if (!fwnode_property_read_string(aad_np, "dlg,jack-ins-det-pty", &fw_str))
708 aad_pdata->jack_ins_det_pty =
709 da7219_aad_fw_jack_ins_det_pty(dev, fw_str);
710 else
711 aad_pdata->jack_ins_det_pty = DA7219_AAD_JACK_INS_DET_PTY_LOW;
712
713 if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str))
714 aad_pdata->jack_det_rate =
715 da7219_aad_fw_jack_det_rate(dev, fw_str);
716 else
717 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS;
718
719 if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0)
720 aad_pdata->jack_rem_deb =
721 da7219_aad_fw_jack_rem_deb(dev, fw_val32);
722 else
723 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS;
724
725 if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0)
726 aad_pdata->a_d_btn_thr = (u8) fw_val32;
727 else
728 aad_pdata->a_d_btn_thr = 0xA;
729
730 if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0)
731 aad_pdata->d_b_btn_thr = (u8) fw_val32;
732 else
733 aad_pdata->d_b_btn_thr = 0x16;
734
735 if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0)
736 aad_pdata->b_c_btn_thr = (u8) fw_val32;
737 else
738 aad_pdata->b_c_btn_thr = 0x21;
739
740 if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0)
741 aad_pdata->c_mic_btn_thr = (u8) fw_val32;
742 else
743 aad_pdata->c_mic_btn_thr = 0x3E;
744
745 if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0)
746 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(dev, fw_val32);
747 else
748 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2;
749
750 if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0)
751 aad_pdata->adc_1bit_rpt =
752 da7219_aad_fw_adc_1bit_rpt(dev, fw_val32);
753 else
754 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
755
756 return aad_pdata;
757 }
758
da7219_aad_handle_pdata(struct snd_soc_component * component)759 static void da7219_aad_handle_pdata(struct snd_soc_component *component)
760 {
761 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
762 struct da7219_aad_priv *da7219_aad = da7219->aad;
763 struct da7219_pdata *pdata = da7219->pdata;
764
765 if ((pdata) && (pdata->aad_pdata)) {
766 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata;
767 u8 cfg, mask;
768
769 da7219_aad->irq = aad_pdata->irq;
770
771 switch (aad_pdata->micbias_pulse_lvl) {
772 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V:
773 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V:
774 da7219_aad->micbias_pulse_lvl =
775 (aad_pdata->micbias_pulse_lvl <<
776 DA7219_MICBIAS1_LEVEL_SHIFT);
777 break;
778 default:
779 break;
780 }
781
782 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time;
783
784 switch (aad_pdata->btn_cfg) {
785 case DA7219_AAD_BTN_CFG_2MS:
786 case DA7219_AAD_BTN_CFG_5MS:
787 case DA7219_AAD_BTN_CFG_10MS:
788 case DA7219_AAD_BTN_CFG_50MS:
789 case DA7219_AAD_BTN_CFG_100MS:
790 case DA7219_AAD_BTN_CFG_200MS:
791 case DA7219_AAD_BTN_CFG_500MS:
792 da7219_aad->btn_cfg = (aad_pdata->btn_cfg <<
793 DA7219_BUTTON_CONFIG_SHIFT);
794 }
795
796 cfg = 0;
797 mask = 0;
798 switch (aad_pdata->mic_det_thr) {
799 case DA7219_AAD_MIC_DET_THR_200_OHMS:
800 case DA7219_AAD_MIC_DET_THR_500_OHMS:
801 case DA7219_AAD_MIC_DET_THR_750_OHMS:
802 case DA7219_AAD_MIC_DET_THR_1000_OHMS:
803 cfg |= (aad_pdata->mic_det_thr <<
804 DA7219_MIC_DET_THRESH_SHIFT);
805 mask |= DA7219_MIC_DET_THRESH_MASK;
806 }
807 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, mask, cfg);
808
809 cfg = 0;
810 mask = 0;
811 switch (aad_pdata->jack_ins_deb) {
812 case DA7219_AAD_JACK_INS_DEB_5MS:
813 case DA7219_AAD_JACK_INS_DEB_10MS:
814 case DA7219_AAD_JACK_INS_DEB_20MS:
815 case DA7219_AAD_JACK_INS_DEB_50MS:
816 case DA7219_AAD_JACK_INS_DEB_100MS:
817 case DA7219_AAD_JACK_INS_DEB_200MS:
818 case DA7219_AAD_JACK_INS_DEB_500MS:
819 case DA7219_AAD_JACK_INS_DEB_1S:
820 cfg |= (aad_pdata->jack_ins_deb <<
821 DA7219_JACKDET_DEBOUNCE_SHIFT);
822 mask |= DA7219_JACKDET_DEBOUNCE_MASK;
823 }
824 switch (aad_pdata->jack_det_rate) {
825 case DA7219_AAD_JACK_DET_RATE_32_64MS:
826 case DA7219_AAD_JACK_DET_RATE_64_128MS:
827 case DA7219_AAD_JACK_DET_RATE_128_256MS:
828 case DA7219_AAD_JACK_DET_RATE_256_512MS:
829 cfg |= (aad_pdata->jack_det_rate <<
830 DA7219_JACK_DETECT_RATE_SHIFT);
831 mask |= DA7219_JACK_DETECT_RATE_MASK;
832 }
833 switch (aad_pdata->jack_rem_deb) {
834 case DA7219_AAD_JACK_REM_DEB_1MS:
835 case DA7219_AAD_JACK_REM_DEB_5MS:
836 case DA7219_AAD_JACK_REM_DEB_10MS:
837 case DA7219_AAD_JACK_REM_DEB_20MS:
838 cfg |= (aad_pdata->jack_rem_deb <<
839 DA7219_JACKDET_REM_DEB_SHIFT);
840 mask |= DA7219_JACKDET_REM_DEB_MASK;
841 }
842 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_2, mask, cfg);
843
844 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_3,
845 aad_pdata->a_d_btn_thr);
846 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_4,
847 aad_pdata->d_b_btn_thr);
848 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_5,
849 aad_pdata->b_c_btn_thr);
850 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_6,
851 aad_pdata->c_mic_btn_thr);
852
853 cfg = 0;
854 mask = 0;
855 switch (aad_pdata->btn_avg) {
856 case DA7219_AAD_BTN_AVG_1:
857 case DA7219_AAD_BTN_AVG_2:
858 case DA7219_AAD_BTN_AVG_4:
859 case DA7219_AAD_BTN_AVG_8:
860 cfg |= (aad_pdata->btn_avg <<
861 DA7219_BUTTON_AVERAGE_SHIFT);
862 mask |= DA7219_BUTTON_AVERAGE_MASK;
863 }
864 switch (aad_pdata->adc_1bit_rpt) {
865 case DA7219_AAD_ADC_1BIT_RPT_1:
866 case DA7219_AAD_ADC_1BIT_RPT_2:
867 case DA7219_AAD_ADC_1BIT_RPT_4:
868 case DA7219_AAD_ADC_1BIT_RPT_8:
869 cfg |= (aad_pdata->adc_1bit_rpt <<
870 DA7219_ADC_1_BIT_REPEAT_SHIFT);
871 mask |= DA7219_ADC_1_BIT_REPEAT_MASK;
872 }
873 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_7, mask, cfg);
874
875 switch (aad_pdata->jack_ins_det_pty) {
876 case DA7219_AAD_JACK_INS_DET_PTY_LOW:
877 snd_soc_component_write(component, 0xF0, 0x8B);
878 snd_soc_component_write(component, 0x75, 0x80);
879 snd_soc_component_write(component, 0xF0, 0x00);
880 break;
881 case DA7219_AAD_JACK_INS_DET_PTY_HIGH:
882 snd_soc_component_write(component, 0xF0, 0x8B);
883 snd_soc_component_write(component, 0x75, 0x00);
884 snd_soc_component_write(component, 0xF0, 0x00);
885 break;
886 default:
887 break;
888 }
889 }
890 }
891
da7219_aad_handle_gnd_switch_time(struct snd_soc_component * component)892 static void da7219_aad_handle_gnd_switch_time(struct snd_soc_component *component)
893 {
894 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
895 struct da7219_aad_priv *da7219_aad = da7219->aad;
896 u8 jack_det;
897
898 jack_det = snd_soc_component_read(component, DA7219_ACCDET_CONFIG_2)
899 & DA7219_JACK_DETECT_RATE_MASK;
900 switch (jack_det) {
901 case 0x00:
902 da7219_aad->gnd_switch_delay = 32;
903 break;
904 case 0x10:
905 da7219_aad->gnd_switch_delay = 64;
906 break;
907 case 0x20:
908 da7219_aad->gnd_switch_delay = 128;
909 break;
910 case 0x30:
911 da7219_aad->gnd_switch_delay = 256;
912 break;
913 default:
914 da7219_aad->gnd_switch_delay = 32;
915 break;
916 }
917 }
918
919 /*
920 * Suspend/Resume
921 */
922
da7219_aad_suspend(struct snd_soc_component * component)923 void da7219_aad_suspend(struct snd_soc_component *component)
924 {
925 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
926 struct da7219_aad_priv *da7219_aad = da7219->aad;
927 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
928 u8 micbias_ctrl;
929
930 if (da7219_aad->jack) {
931 /* Disable jack detection during suspend */
932 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
933 DA7219_ACCDET_EN_MASK, 0);
934
935 /*
936 * If we have a 4-pole jack inserted, then micbias will be
937 * enabled. We can disable micbias here, and keep a note to
938 * re-enable it on resume. If jack removal occurred during
939 * suspend then this will be dealt with through the IRQ handler.
940 */
941 if (da7219_aad->jack_inserted) {
942 micbias_ctrl = snd_soc_component_read(component, DA7219_MICBIAS_CTRL);
943 if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) {
944 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
945 snd_soc_dapm_sync(dapm);
946 da7219_aad->micbias_resume_enable = true;
947 }
948 }
949 }
950
951 synchronize_irq(da7219_aad->irq);
952 }
953
da7219_aad_resume(struct snd_soc_component * component)954 void da7219_aad_resume(struct snd_soc_component *component)
955 {
956 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
957 struct da7219_aad_priv *da7219_aad = da7219->aad;
958 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
959
960 if (da7219_aad->jack) {
961 /* Re-enable micbias if previously enabled for 4-pole jack */
962 if (da7219_aad->jack_inserted &&
963 da7219_aad->micbias_resume_enable) {
964 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
965 snd_soc_dapm_sync(dapm);
966 da7219_aad->micbias_resume_enable = false;
967 }
968
969 /* Re-enable jack detection */
970 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
971 DA7219_ACCDET_EN_MASK,
972 DA7219_ACCDET_EN_MASK);
973 }
974 }
975
976
977 /*
978 * Init/Exit
979 */
980
da7219_aad_init(struct snd_soc_component * component)981 int da7219_aad_init(struct snd_soc_component *component)
982 {
983 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
984 struct da7219_aad_priv *da7219_aad = da7219->aad;
985 u8 mask[DA7219_AAD_IRQ_REG_MAX];
986 int ret;
987
988 da7219_aad->component = component;
989
990 /* Handle any DT/ACPI/platform data */
991 da7219_aad_handle_pdata(component);
992
993 /* Disable button detection */
994 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
995 DA7219_BUTTON_CONFIG_MASK, 0);
996
997 da7219_aad_handle_gnd_switch_time(component);
998
999 da7219_aad->aad_wq = create_singlethread_workqueue("da7219-aad");
1000 if (!da7219_aad->aad_wq) {
1001 dev_err(component->dev, "Failed to create aad workqueue\n");
1002 return -ENOMEM;
1003 }
1004
1005 INIT_DELAYED_WORK(&da7219_aad->jack_det_work, da7219_aad_jack_det_work);
1006 INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work);
1007 INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work);
1008
1009 ret = request_threaded_irq(da7219_aad->irq, NULL,
1010 da7219_aad_irq_thread,
1011 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1012 "da7219-aad", da7219_aad);
1013 if (ret) {
1014 dev_err(component->dev, "Failed to request IRQ: %d\n", ret);
1015 return ret;
1016 }
1017
1018 /* Unmask AAD IRQs */
1019 memset(mask, 0, DA7219_AAD_IRQ_REG_MAX);
1020 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
1021 &mask, DA7219_AAD_IRQ_REG_MAX);
1022
1023 return 0;
1024 }
1025
da7219_aad_exit(struct snd_soc_component * component)1026 void da7219_aad_exit(struct snd_soc_component *component)
1027 {
1028 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1029 struct da7219_aad_priv *da7219_aad = da7219->aad;
1030 u8 mask[DA7219_AAD_IRQ_REG_MAX];
1031
1032 /* Mask off AAD IRQs */
1033 memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX);
1034 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
1035 mask, DA7219_AAD_IRQ_REG_MAX);
1036
1037 free_irq(da7219_aad->irq, da7219_aad);
1038
1039 cancel_delayed_work_sync(&da7219_aad->jack_det_work);
1040 cancel_work_sync(&da7219_aad->btn_det_work);
1041 cancel_work_sync(&da7219_aad->hptest_work);
1042 destroy_workqueue(da7219_aad->aad_wq);
1043 }
1044
1045 /*
1046 * AAD related I2C probe handling
1047 */
1048
da7219_aad_probe(struct i2c_client * i2c)1049 int da7219_aad_probe(struct i2c_client *i2c)
1050 {
1051 struct da7219_priv *da7219 = i2c_get_clientdata(i2c);
1052 struct device *dev = &i2c->dev;
1053 struct da7219_aad_priv *da7219_aad;
1054
1055 da7219_aad = devm_kzalloc(dev, sizeof(*da7219_aad), GFP_KERNEL);
1056 if (!da7219_aad)
1057 return -ENOMEM;
1058
1059 da7219->aad = da7219_aad;
1060
1061 /* Retrieve any DT/ACPI/platform data */
1062 if (da7219->pdata && !da7219->pdata->aad_pdata)
1063 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(dev);
1064
1065 return 0;
1066 }
1067
1068 MODULE_DESCRIPTION("ASoC DA7219 AAD Driver");
1069 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
1070 MODULE_AUTHOR("David Rau <David.Rau.opensource@dm.renesas.com>");
1071 MODULE_LICENSE("GPL");
1072
