xref: /openbmc/linux/sound/soc/codecs/twl6040.c (revision 5947b42c)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * ALSA SoC TWL6040 codec driver
4  *
5  * Author:	 Misael Lopez Cruz <x0052729@ti.com>
6  */
7 
8 #include <linux/module.h>
9 #include <linux/moduleparam.h>
10 #include <linux/init.h>
11 #include <linux/delay.h>
12 #include <linux/pm.h>
13 #include <linux/platform_device.h>
14 #include <linux/slab.h>
15 #include <linux/mfd/twl6040.h>
16 
17 #include <sound/core.h>
18 #include <sound/pcm.h>
19 #include <sound/pcm_params.h>
20 #include <sound/soc.h>
21 #include <sound/soc-dapm.h>
22 #include <sound/initval.h>
23 #include <sound/tlv.h>
24 
25 #include "twl6040.h"
26 
27 enum twl6040_dai_id {
28 	TWL6040_DAI_LEGACY = 0,
29 	TWL6040_DAI_UL,
30 	TWL6040_DAI_DL1,
31 	TWL6040_DAI_DL2,
32 	TWL6040_DAI_VIB,
33 };
34 
35 #define TWL6040_RATES		SNDRV_PCM_RATE_8000_96000
36 #define TWL6040_FORMATS	(SNDRV_PCM_FMTBIT_S32_LE)
37 
38 #define TWL6040_OUTHS_0dB 0x00
39 #define TWL6040_OUTHS_M30dB 0x0F
40 #define TWL6040_OUTHF_0dB 0x03
41 #define TWL6040_OUTHF_M52dB 0x1D
42 
43 #define TWL6040_CACHEREGNUM	(TWL6040_REG_STATUS + 1)
44 
45 struct twl6040_jack_data {
46 	struct snd_soc_jack *jack;
47 	struct delayed_work work;
48 	int report;
49 };
50 
51 /* codec private data */
52 struct twl6040_data {
53 	int plug_irq;
54 	int codec_powered;
55 	int pll;
56 	int pll_power_mode;
57 	int hs_power_mode;
58 	int hs_power_mode_locked;
59 	bool dl1_unmuted;
60 	bool dl2_unmuted;
61 	u8 dl12_cache[TWL6040_REG_HFRCTL - TWL6040_REG_HSLCTL + 1];
62 	unsigned int clk_in;
63 	unsigned int sysclk;
64 	struct twl6040_jack_data hs_jack;
65 	struct snd_soc_component *component;
66 	struct mutex mutex;
67 };
68 
69 /* set of rates for each pll: low-power and high-performance */
70 static const unsigned int lp_rates[] = {
71 	8000,
72 	11250,
73 	16000,
74 	22500,
75 	32000,
76 	44100,
77 	48000,
78 	88200,
79 	96000,
80 };
81 
82 static const unsigned int hp_rates[] = {
83 	8000,
84 	16000,
85 	32000,
86 	48000,
87 	96000,
88 };
89 
90 static const struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
91 	{ .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
92 	{ .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
93 };
94 
95 #define to_twl6040(component)	dev_get_drvdata((component)->dev->parent)
96 
twl6040_read(struct snd_soc_component * component,unsigned int reg)97 static unsigned int twl6040_read(struct snd_soc_component *component, unsigned int reg)
98 {
99 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
100 	struct twl6040 *twl6040 = to_twl6040(component);
101 	u8 value;
102 
103 	if (reg >= TWL6040_CACHEREGNUM)
104 		return -EIO;
105 
106 	switch (reg) {
107 	case TWL6040_REG_HSLCTL:
108 	case TWL6040_REG_HSRCTL:
109 	case TWL6040_REG_EARCTL:
110 	case TWL6040_REG_HFLCTL:
111 	case TWL6040_REG_HFRCTL:
112 		value = priv->dl12_cache[reg - TWL6040_REG_HSLCTL];
113 		break;
114 	default:
115 		value = twl6040_reg_read(twl6040, reg);
116 		break;
117 	}
118 
119 	return value;
120 }
121 
twl6040_can_write_to_chip(struct snd_soc_component * component,unsigned int reg)122 static bool twl6040_can_write_to_chip(struct snd_soc_component *component,
123 				  unsigned int reg)
124 {
125 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
126 
127 	switch (reg) {
128 	case TWL6040_REG_HSLCTL:
129 	case TWL6040_REG_HSRCTL:
130 	case TWL6040_REG_EARCTL:
131 		/* DL1 path */
132 		return priv->dl1_unmuted;
133 	case TWL6040_REG_HFLCTL:
134 	case TWL6040_REG_HFRCTL:
135 		return priv->dl2_unmuted;
136 	default:
137 		return true;
138 	}
139 }
140 
twl6040_update_dl12_cache(struct snd_soc_component * component,u8 reg,u8 value)141 static inline void twl6040_update_dl12_cache(struct snd_soc_component *component,
142 					     u8 reg, u8 value)
143 {
144 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
145 
146 	switch (reg) {
147 	case TWL6040_REG_HSLCTL:
148 	case TWL6040_REG_HSRCTL:
149 	case TWL6040_REG_EARCTL:
150 	case TWL6040_REG_HFLCTL:
151 	case TWL6040_REG_HFRCTL:
152 		priv->dl12_cache[reg - TWL6040_REG_HSLCTL] = value;
153 		break;
154 	default:
155 		break;
156 	}
157 }
158 
twl6040_write(struct snd_soc_component * component,unsigned int reg,unsigned int value)159 static int twl6040_write(struct snd_soc_component *component,
160 			unsigned int reg, unsigned int value)
161 {
162 	struct twl6040 *twl6040 = to_twl6040(component);
163 
164 	if (reg >= TWL6040_CACHEREGNUM)
165 		return -EIO;
166 
167 	twl6040_update_dl12_cache(component, reg, value);
168 	if (twl6040_can_write_to_chip(component, reg))
169 		return twl6040_reg_write(twl6040, reg, value);
170 	else
171 		return 0;
172 }
173 
twl6040_init_chip(struct snd_soc_component * component)174 static void twl6040_init_chip(struct snd_soc_component *component)
175 {
176 	twl6040_read(component, TWL6040_REG_TRIM1);
177 	twl6040_read(component, TWL6040_REG_TRIM2);
178 	twl6040_read(component, TWL6040_REG_TRIM3);
179 	twl6040_read(component, TWL6040_REG_HSOTRIM);
180 	twl6040_read(component, TWL6040_REG_HFOTRIM);
181 
182 	/* Change chip defaults */
183 	/* No imput selected for microphone amplifiers */
184 	twl6040_write(component, TWL6040_REG_MICLCTL, 0x18);
185 	twl6040_write(component, TWL6040_REG_MICRCTL, 0x18);
186 
187 	/*
188 	 * We need to lower the default gain values, so the ramp code
189 	 * can work correctly for the first playback.
190 	 * This reduces the pop noise heard at the first playback.
191 	 */
192 	twl6040_write(component, TWL6040_REG_HSGAIN, 0xff);
193 	twl6040_write(component, TWL6040_REG_EARCTL, 0x1e);
194 	twl6040_write(component, TWL6040_REG_HFLGAIN, 0x1d);
195 	twl6040_write(component, TWL6040_REG_HFRGAIN, 0x1d);
196 	twl6040_write(component, TWL6040_REG_LINEGAIN, 0);
197 }
198 
199 /* set headset dac and driver power mode */
headset_power_mode(struct snd_soc_component * component,int high_perf)200 static int headset_power_mode(struct snd_soc_component *component, int high_perf)
201 {
202 	int hslctl, hsrctl;
203 	int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
204 
205 	hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
206 	hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
207 
208 	if (high_perf) {
209 		hslctl &= ~mask;
210 		hsrctl &= ~mask;
211 	} else {
212 		hslctl |= mask;
213 		hsrctl |= mask;
214 	}
215 
216 	twl6040_write(component, TWL6040_REG_HSLCTL, hslctl);
217 	twl6040_write(component, TWL6040_REG_HSRCTL, hsrctl);
218 
219 	return 0;
220 }
221 
twl6040_hs_dac_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)222 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
223 			struct snd_kcontrol *kcontrol, int event)
224 {
225 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
226 	u8 hslctl, hsrctl;
227 
228 	/*
229 	 * Workaround for Headset DC offset caused pop noise:
230 	 * Both HS DAC need to be turned on (before the HS driver) and off at
231 	 * the same time.
232 	 */
233 	hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
234 	hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
235 	if (SND_SOC_DAPM_EVENT_ON(event)) {
236 		hslctl |= TWL6040_HSDACENA;
237 		hsrctl |= TWL6040_HSDACENA;
238 	} else {
239 		hslctl &= ~TWL6040_HSDACENA;
240 		hsrctl &= ~TWL6040_HSDACENA;
241 	}
242 	twl6040_write(component, TWL6040_REG_HSLCTL, hslctl);
243 	twl6040_write(component, TWL6040_REG_HSRCTL, hsrctl);
244 
245 	msleep(1);
246 	return 0;
247 }
248 
twl6040_ep_drv_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)249 static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w,
250 			struct snd_kcontrol *kcontrol, int event)
251 {
252 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
253 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
254 	int ret = 0;
255 
256 	if (SND_SOC_DAPM_EVENT_ON(event)) {
257 		/* Earphone doesn't support low power mode */
258 		priv->hs_power_mode_locked = 1;
259 		ret = headset_power_mode(component, 1);
260 	} else {
261 		priv->hs_power_mode_locked = 0;
262 		ret = headset_power_mode(component, priv->hs_power_mode);
263 	}
264 
265 	msleep(1);
266 
267 	return ret;
268 }
269 
twl6040_hs_jack_report(struct snd_soc_component * component,struct snd_soc_jack * jack,int report)270 static void twl6040_hs_jack_report(struct snd_soc_component *component,
271 				   struct snd_soc_jack *jack, int report)
272 {
273 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
274 	int status;
275 
276 	mutex_lock(&priv->mutex);
277 
278 	/* Sync status */
279 	status = twl6040_read(component, TWL6040_REG_STATUS);
280 	if (status & TWL6040_PLUGCOMP)
281 		snd_soc_jack_report(jack, report, report);
282 	else
283 		snd_soc_jack_report(jack, 0, report);
284 
285 	mutex_unlock(&priv->mutex);
286 }
287 
twl6040_hs_jack_detect(struct snd_soc_component * component,struct snd_soc_jack * jack,int report)288 void twl6040_hs_jack_detect(struct snd_soc_component *component,
289 				struct snd_soc_jack *jack, int report)
290 {
291 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
292 	struct twl6040_jack_data *hs_jack = &priv->hs_jack;
293 
294 	hs_jack->jack = jack;
295 	hs_jack->report = report;
296 
297 	twl6040_hs_jack_report(component, hs_jack->jack, hs_jack->report);
298 }
299 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
300 
twl6040_accessory_work(struct work_struct * work)301 static void twl6040_accessory_work(struct work_struct *work)
302 {
303 	struct twl6040_data *priv = container_of(work,
304 					struct twl6040_data, hs_jack.work.work);
305 	struct snd_soc_component *component = priv->component;
306 	struct twl6040_jack_data *hs_jack = &priv->hs_jack;
307 
308 	twl6040_hs_jack_report(component, hs_jack->jack, hs_jack->report);
309 }
310 
311 /* audio interrupt handler */
twl6040_audio_handler(int irq,void * data)312 static irqreturn_t twl6040_audio_handler(int irq, void *data)
313 {
314 	struct snd_soc_component *component = data;
315 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
316 
317 	queue_delayed_work(system_power_efficient_wq,
318 			   &priv->hs_jack.work, msecs_to_jiffies(200));
319 
320 	return IRQ_HANDLED;
321 }
322 
twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)323 static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
324 	struct snd_ctl_elem_value *ucontrol)
325 {
326 	struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
327 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
328 	unsigned int val;
329 
330 	/* Do not allow changes while Input/FF efect is running */
331 	val = twl6040_read(component, e->reg);
332 	if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL))
333 		return -EBUSY;
334 
335 	return snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
336 }
337 
338 /*
339  * MICATT volume control:
340  * from -6 to 0 dB in 6 dB steps
341  */
342 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
343 
344 /*
345  * MICGAIN volume control:
346  * from 6 to 30 dB in 6 dB steps
347  */
348 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
349 
350 /*
351  * AFMGAIN volume control:
352  * from -18 to 24 dB in 6 dB steps
353  */
354 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
355 
356 /*
357  * HSGAIN volume control:
358  * from -30 to 0 dB in 2 dB steps
359  */
360 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
361 
362 /*
363  * HFGAIN volume control:
364  * from -52 to 6 dB in 2 dB steps
365  */
366 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
367 
368 /*
369  * EPGAIN volume control:
370  * from -24 to 6 dB in 2 dB steps
371  */
372 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
373 
374 /* Left analog microphone selection */
375 static const char *twl6040_amicl_texts[] =
376 	{"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
377 
378 /* Right analog microphone selection */
379 static const char *twl6040_amicr_texts[] =
380 	{"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
381 
382 static const struct soc_enum twl6040_enum[] = {
383 	SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3,
384 			ARRAY_SIZE(twl6040_amicl_texts), twl6040_amicl_texts),
385 	SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3,
386 			ARRAY_SIZE(twl6040_amicr_texts), twl6040_amicr_texts),
387 };
388 
389 static const char *twl6040_hs_texts[] = {
390 	"Off", "HS DAC", "Line-In amp"
391 };
392 
393 static const struct soc_enum twl6040_hs_enum[] = {
394 	SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
395 			twl6040_hs_texts),
396 	SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
397 			twl6040_hs_texts),
398 };
399 
400 static const char *twl6040_hf_texts[] = {
401 	"Off", "HF DAC", "Line-In amp"
402 };
403 
404 static const struct soc_enum twl6040_hf_enum[] = {
405 	SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
406 			twl6040_hf_texts),
407 	SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
408 			twl6040_hf_texts),
409 };
410 
411 static const char *twl6040_vibrapath_texts[] = {
412 	"Input FF", "Audio PDM"
413 };
414 
415 static const struct soc_enum twl6040_vibra_enum[] = {
416 	SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1,
417 			ARRAY_SIZE(twl6040_vibrapath_texts),
418 			twl6040_vibrapath_texts),
419 	SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1,
420 			ARRAY_SIZE(twl6040_vibrapath_texts),
421 			twl6040_vibrapath_texts),
422 };
423 
424 static const struct snd_kcontrol_new amicl_control =
425 	SOC_DAPM_ENUM("Route", twl6040_enum[0]);
426 
427 static const struct snd_kcontrol_new amicr_control =
428 	SOC_DAPM_ENUM("Route", twl6040_enum[1]);
429 
430 /* Headset DAC playback switches */
431 static const struct snd_kcontrol_new hsl_mux_controls =
432 	SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
433 
434 static const struct snd_kcontrol_new hsr_mux_controls =
435 	SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
436 
437 /* Handsfree DAC playback switches */
438 static const struct snd_kcontrol_new hfl_mux_controls =
439 	SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
440 
441 static const struct snd_kcontrol_new hfr_mux_controls =
442 	SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
443 
444 static const struct snd_kcontrol_new ep_path_enable_control =
445 	SOC_DAPM_SINGLE_VIRT("Switch", 1);
446 
447 static const struct snd_kcontrol_new auxl_switch_control =
448 	SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
449 
450 static const struct snd_kcontrol_new auxr_switch_control =
451 	SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
452 
453 /* Vibra playback switches */
454 static const struct snd_kcontrol_new vibral_mux_controls =
455 	SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[0],
456 		snd_soc_dapm_get_enum_double,
457 		twl6040_soc_dapm_put_vibra_enum);
458 
459 static const struct snd_kcontrol_new vibrar_mux_controls =
460 	SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[1],
461 		snd_soc_dapm_get_enum_double,
462 		twl6040_soc_dapm_put_vibra_enum);
463 
464 /* Headset power mode */
465 static const char *twl6040_power_mode_texts[] = {
466 	"Low-Power", "High-Performance",
467 };
468 
469 static SOC_ENUM_SINGLE_EXT_DECL(twl6040_power_mode_enum,
470 				twl6040_power_mode_texts);
471 
twl6040_headset_power_get_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)472 static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
473 	struct snd_ctl_elem_value *ucontrol)
474 {
475 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
476 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
477 
478 	ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
479 
480 	return 0;
481 }
482 
twl6040_headset_power_put_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)483 static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
484 	struct snd_ctl_elem_value *ucontrol)
485 {
486 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
487 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
488 	int high_perf = ucontrol->value.enumerated.item[0];
489 	int ret = 0;
490 
491 	if (!priv->hs_power_mode_locked)
492 		ret = headset_power_mode(component, high_perf);
493 
494 	if (!ret)
495 		priv->hs_power_mode = high_perf;
496 
497 	return ret;
498 }
499 
twl6040_pll_get_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)500 static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
501 	struct snd_ctl_elem_value *ucontrol)
502 {
503 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
504 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
505 
506 	ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
507 
508 	return 0;
509 }
510 
twl6040_pll_put_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)511 static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
512 	struct snd_ctl_elem_value *ucontrol)
513 {
514 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
515 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
516 
517 	priv->pll_power_mode = ucontrol->value.enumerated.item[0];
518 
519 	return 0;
520 }
521 
twl6040_get_dl1_gain(struct snd_soc_component * component)522 int twl6040_get_dl1_gain(struct snd_soc_component *component)
523 {
524 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
525 
526 	if (snd_soc_dapm_get_pin_status(dapm, "EP"))
527 		return -1; /* -1dB */
528 
529 	if (snd_soc_dapm_get_pin_status(dapm, "HSOR") ||
530 		snd_soc_dapm_get_pin_status(dapm, "HSOL")) {
531 
532 		u8 val = twl6040_read(component, TWL6040_REG_HSLCTL);
533 		if (val & TWL6040_HSDACMODE)
534 			/* HSDACL in LP mode */
535 			return -8; /* -8dB */
536 		else
537 			/* HSDACL in HP mode */
538 			return -1; /* -1dB */
539 	}
540 	return 0; /* 0dB */
541 }
542 EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain);
543 
twl6040_get_clk_id(struct snd_soc_component * component)544 int twl6040_get_clk_id(struct snd_soc_component *component)
545 {
546 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
547 
548 	return priv->pll_power_mode;
549 }
550 EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
551 
twl6040_get_trim_value(struct snd_soc_component * component,enum twl6040_trim trim)552 int twl6040_get_trim_value(struct snd_soc_component *component, enum twl6040_trim trim)
553 {
554 	if (unlikely(trim >= TWL6040_TRIM_INVAL))
555 		return -EINVAL;
556 
557 	return twl6040_read(component, TWL6040_REG_TRIM1 + trim);
558 }
559 EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
560 
twl6040_get_hs_step_size(struct snd_soc_component * component)561 int twl6040_get_hs_step_size(struct snd_soc_component *component)
562 {
563 	struct twl6040 *twl6040 = to_twl6040(component);
564 
565 	if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3)
566 		/* For ES under ES_1.3 HS step is 2 mV */
567 		return 2;
568 	else
569 		/* For ES_1.3 HS step is 1 mV */
570 		return 1;
571 }
572 EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
573 
574 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
575 	/* Capture gains */
576 	SOC_DOUBLE_TLV("Capture Preamplifier Volume",
577 		TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
578 	SOC_DOUBLE_TLV("Capture Volume",
579 		TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
580 
581 	/* AFM gains */
582 	SOC_DOUBLE_TLV("Aux FM Volume",
583 		TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
584 
585 	/* Playback gains */
586 	SOC_DOUBLE_TLV("Headset Playback Volume",
587 		TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
588 	SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
589 		TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
590 	SOC_SINGLE_TLV("Earphone Playback Volume",
591 		TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
592 
593 	SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
594 		twl6040_headset_power_get_enum,
595 		twl6040_headset_power_put_enum),
596 
597 	/* Left HS PDM data routed to Right HSDAC */
598 	SOC_SINGLE("Headset Mono to Stereo Playback Switch",
599 		TWL6040_REG_HSRCTL, 7, 1, 0),
600 
601 	/* Left HF PDM data routed to Right HFDAC */
602 	SOC_SINGLE("Handsfree Mono to Stereo Playback Switch",
603 		TWL6040_REG_HFRCTL, 5, 1, 0),
604 
605 	SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
606 		twl6040_pll_get_enum, twl6040_pll_put_enum),
607 };
608 
609 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
610 	/* Inputs */
611 	SND_SOC_DAPM_INPUT("MAINMIC"),
612 	SND_SOC_DAPM_INPUT("HSMIC"),
613 	SND_SOC_DAPM_INPUT("SUBMIC"),
614 	SND_SOC_DAPM_INPUT("AFML"),
615 	SND_SOC_DAPM_INPUT("AFMR"),
616 
617 	/* Outputs */
618 	SND_SOC_DAPM_OUTPUT("HSOL"),
619 	SND_SOC_DAPM_OUTPUT("HSOR"),
620 	SND_SOC_DAPM_OUTPUT("HFL"),
621 	SND_SOC_DAPM_OUTPUT("HFR"),
622 	SND_SOC_DAPM_OUTPUT("EP"),
623 	SND_SOC_DAPM_OUTPUT("AUXL"),
624 	SND_SOC_DAPM_OUTPUT("AUXR"),
625 	SND_SOC_DAPM_OUTPUT("VIBRAL"),
626 	SND_SOC_DAPM_OUTPUT("VIBRAR"),
627 
628 	/* Analog input muxes for the capture amplifiers */
629 	SND_SOC_DAPM_MUX("Analog Left Capture Route",
630 			SND_SOC_NOPM, 0, 0, &amicl_control),
631 	SND_SOC_DAPM_MUX("Analog Right Capture Route",
632 			SND_SOC_NOPM, 0, 0, &amicr_control),
633 
634 	/* Analog capture PGAs */
635 	SND_SOC_DAPM_PGA("MicAmpL",
636 			TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
637 	SND_SOC_DAPM_PGA("MicAmpR",
638 			TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
639 
640 	/* Auxiliary FM PGAs */
641 	SND_SOC_DAPM_PGA("AFMAmpL",
642 			TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
643 	SND_SOC_DAPM_PGA("AFMAmpR",
644 			TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
645 
646 	/* ADCs */
647 	SND_SOC_DAPM_ADC("ADC Left", NULL, TWL6040_REG_MICLCTL, 2, 0),
648 	SND_SOC_DAPM_ADC("ADC Right", NULL, TWL6040_REG_MICRCTL, 2, 0),
649 
650 	/* Microphone bias */
651 	SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
652 			    TWL6040_REG_AMICBCTL, 0, 0, NULL, 0),
653 	SND_SOC_DAPM_SUPPLY("Main Mic Bias",
654 			    TWL6040_REG_AMICBCTL, 4, 0, NULL, 0),
655 	SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias",
656 			    TWL6040_REG_DMICBCTL, 0, 0, NULL, 0),
657 	SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias",
658 			    TWL6040_REG_DMICBCTL, 4, 0, NULL, 0),
659 
660 	/* DACs */
661 	SND_SOC_DAPM_DAC("HSDAC Left", NULL, SND_SOC_NOPM, 0, 0),
662 	SND_SOC_DAPM_DAC("HSDAC Right", NULL, SND_SOC_NOPM, 0, 0),
663 	SND_SOC_DAPM_DAC("HFDAC Left", NULL, TWL6040_REG_HFLCTL, 0, 0),
664 	SND_SOC_DAPM_DAC("HFDAC Right", NULL, TWL6040_REG_HFRCTL, 0, 0),
665 	/* Virtual DAC for vibra path (DL4 channel) */
666 	SND_SOC_DAPM_DAC("VIBRA DAC", NULL, SND_SOC_NOPM, 0, 0),
667 
668 	SND_SOC_DAPM_MUX("Handsfree Left Playback",
669 			SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
670 	SND_SOC_DAPM_MUX("Handsfree Right Playback",
671 			SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
672 	/* Analog playback Muxes */
673 	SND_SOC_DAPM_MUX("Headset Left Playback",
674 			SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
675 	SND_SOC_DAPM_MUX("Headset Right Playback",
676 			SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
677 
678 	SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0,
679 			&vibral_mux_controls),
680 	SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0,
681 			&vibrar_mux_controls),
682 
683 	SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
684 			&ep_path_enable_control),
685 	SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
686 			&auxl_switch_control),
687 	SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
688 			&auxr_switch_control),
689 
690 	/* Analog playback drivers */
691 	SND_SOC_DAPM_OUT_DRV("HF Left Driver",
692 			TWL6040_REG_HFLCTL, 4, 0, NULL, 0),
693 	SND_SOC_DAPM_OUT_DRV("HF Right Driver",
694 			TWL6040_REG_HFRCTL, 4, 0, NULL, 0),
695 	SND_SOC_DAPM_OUT_DRV("HS Left Driver",
696 			TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
697 	SND_SOC_DAPM_OUT_DRV("HS Right Driver",
698 			TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
699 	SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
700 			TWL6040_REG_EARCTL, 0, 0, NULL, 0,
701 			twl6040_ep_drv_event,
702 			SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
703 	SND_SOC_DAPM_OUT_DRV("Vibra Left Driver",
704 			TWL6040_REG_VIBCTLL, 0, 0, NULL, 0),
705 	SND_SOC_DAPM_OUT_DRV("Vibra Right Driver",
706 			TWL6040_REG_VIBCTLR, 0, 0, NULL, 0),
707 
708 	SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0,
709 			    NULL, 0),
710 	SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0,
711 			    NULL, 0),
712 	SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0,
713 			      twl6040_hs_dac_event,
714 			      SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
715 
716 	/* Analog playback PGAs */
717 	SND_SOC_DAPM_PGA("HF Left PGA",
718 			TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
719 	SND_SOC_DAPM_PGA("HF Right PGA",
720 			TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
721 
722 };
723 
724 static const struct snd_soc_dapm_route intercon[] = {
725 	/* Stream -> DAC mapping */
726 	{"HSDAC Left", NULL, "Legacy Playback"},
727 	{"HSDAC Left", NULL, "Headset Playback"},
728 	{"HSDAC Right", NULL, "Legacy Playback"},
729 	{"HSDAC Right", NULL, "Headset Playback"},
730 
731 	{"HFDAC Left", NULL, "Legacy Playback"},
732 	{"HFDAC Left", NULL, "Handsfree Playback"},
733 	{"HFDAC Right", NULL, "Legacy Playback"},
734 	{"HFDAC Right", NULL, "Handsfree Playback"},
735 
736 	{"VIBRA DAC", NULL, "Legacy Playback"},
737 	{"VIBRA DAC", NULL, "Vibra Playback"},
738 
739 	/* ADC -> Stream mapping */
740 	{"Legacy Capture" , NULL, "ADC Left"},
741 	{"Capture", NULL, "ADC Left"},
742 	{"Legacy Capture", NULL, "ADC Right"},
743 	{"Capture" , NULL, "ADC Right"},
744 
745 	/* Capture path */
746 	{"Analog Left Capture Route", "Headset Mic", "HSMIC"},
747 	{"Analog Left Capture Route", "Main Mic", "MAINMIC"},
748 	{"Analog Left Capture Route", "Aux/FM Left", "AFML"},
749 
750 	{"Analog Right Capture Route", "Headset Mic", "HSMIC"},
751 	{"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
752 	{"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
753 
754 	{"MicAmpL", NULL, "Analog Left Capture Route"},
755 	{"MicAmpR", NULL, "Analog Right Capture Route"},
756 
757 	{"ADC Left", NULL, "MicAmpL"},
758 	{"ADC Right", NULL, "MicAmpR"},
759 
760 	/* AFM path */
761 	{"AFMAmpL", NULL, "AFML"},
762 	{"AFMAmpR", NULL, "AFMR"},
763 
764 	{"HSDAC Left", NULL, "HSDAC Power"},
765 	{"HSDAC Right", NULL, "HSDAC Power"},
766 
767 	{"Headset Left Playback", "HS DAC", "HSDAC Left"},
768 	{"Headset Left Playback", "Line-In amp", "AFMAmpL"},
769 
770 	{"Headset Right Playback", "HS DAC", "HSDAC Right"},
771 	{"Headset Right Playback", "Line-In amp", "AFMAmpR"},
772 
773 	{"HS Left Driver", NULL, "Headset Left Playback"},
774 	{"HS Right Driver", NULL, "Headset Right Playback"},
775 
776 	{"HSOL", NULL, "HS Left Driver"},
777 	{"HSOR", NULL, "HS Right Driver"},
778 
779 	/* Earphone playback path */
780 	{"Earphone Playback", "Switch", "HSDAC Left"},
781 	{"Earphone Driver", NULL, "Earphone Playback"},
782 	{"EP", NULL, "Earphone Driver"},
783 
784 	{"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
785 	{"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
786 
787 	{"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
788 	{"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
789 
790 	{"HF Left PGA", NULL, "Handsfree Left Playback"},
791 	{"HF Right PGA", NULL, "Handsfree Right Playback"},
792 
793 	{"HF Left Driver", NULL, "HF Left PGA"},
794 	{"HF Right Driver", NULL, "HF Right PGA"},
795 
796 	{"HFL", NULL, "HF Left Driver"},
797 	{"HFR", NULL, "HF Right Driver"},
798 
799 	{"AUXL Playback", "Switch", "HF Left PGA"},
800 	{"AUXR Playback", "Switch", "HF Right PGA"},
801 
802 	{"AUXL", NULL, "AUXL Playback"},
803 	{"AUXR", NULL, "AUXR Playback"},
804 
805 	/* Vibrator paths */
806 	{"Vibra Left Playback", "Audio PDM", "VIBRA DAC"},
807 	{"Vibra Right Playback", "Audio PDM", "VIBRA DAC"},
808 
809 	{"Vibra Left Driver", NULL, "Vibra Left Playback"},
810 	{"Vibra Right Driver", NULL, "Vibra Right Playback"},
811 	{"Vibra Left Driver", NULL, "Vibra Left Control"},
812 	{"Vibra Right Driver", NULL, "Vibra Right Control"},
813 
814 	{"VIBRAL", NULL, "Vibra Left Driver"},
815 	{"VIBRAR", NULL, "Vibra Right Driver"},
816 };
817 
twl6040_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)818 static int twl6040_set_bias_level(struct snd_soc_component *component,
819 				enum snd_soc_bias_level level)
820 {
821 	struct twl6040 *twl6040 = to_twl6040(component);
822 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
823 	int ret = 0;
824 
825 	switch (level) {
826 	case SND_SOC_BIAS_ON:
827 		break;
828 	case SND_SOC_BIAS_PREPARE:
829 		break;
830 	case SND_SOC_BIAS_STANDBY:
831 		if (priv->codec_powered) {
832 			/* Select low power PLL in standby */
833 			ret = twl6040_set_pll(twl6040, TWL6040_SYSCLK_SEL_LPPLL,
834 					      32768, 19200000);
835 			break;
836 		}
837 
838 		ret = twl6040_power(twl6040, 1);
839 		if (ret)
840 			break;
841 
842 		priv->codec_powered = 1;
843 
844 		/* Set external boost GPO */
845 		twl6040_write(component, TWL6040_REG_GPOCTL, 0x02);
846 		break;
847 	case SND_SOC_BIAS_OFF:
848 		if (!priv->codec_powered)
849 			break;
850 
851 		twl6040_power(twl6040, 0);
852 		priv->codec_powered = 0;
853 		break;
854 	}
855 
856 	return ret;
857 }
858 
twl6040_startup(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)859 static int twl6040_startup(struct snd_pcm_substream *substream,
860 			struct snd_soc_dai *dai)
861 {
862 	struct snd_soc_component *component = dai->component;
863 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
864 
865 	snd_pcm_hw_constraint_list(substream->runtime, 0,
866 				SNDRV_PCM_HW_PARAM_RATE,
867 				&sysclk_constraints[priv->pll_power_mode]);
868 
869 	return 0;
870 }
871 
twl6040_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)872 static int twl6040_hw_params(struct snd_pcm_substream *substream,
873 			struct snd_pcm_hw_params *params,
874 			struct snd_soc_dai *dai)
875 {
876 	struct snd_soc_component *component = dai->component;
877 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
878 	int rate;
879 
880 	rate = params_rate(params);
881 	switch (rate) {
882 	case 11250:
883 	case 22500:
884 	case 44100:
885 	case 88200:
886 		/* These rates are not supported when HPPLL is in use */
887 		if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
888 			dev_err(component->dev, "HPPLL does not support rate %d\n",
889 				rate);
890 			return -EINVAL;
891 		}
892 		priv->sysclk = 17640000;
893 		break;
894 	case 8000:
895 	case 16000:
896 	case 32000:
897 	case 48000:
898 	case 96000:
899 		priv->sysclk = 19200000;
900 		break;
901 	default:
902 		dev_err(component->dev, "unsupported rate %d\n", rate);
903 		return -EINVAL;
904 	}
905 
906 	return 0;
907 }
908 
twl6040_prepare(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)909 static int twl6040_prepare(struct snd_pcm_substream *substream,
910 			struct snd_soc_dai *dai)
911 {
912 	struct snd_soc_component *component = dai->component;
913 	struct twl6040 *twl6040 = to_twl6040(component);
914 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
915 	int ret;
916 
917 	if (!priv->sysclk) {
918 		dev_err(component->dev,
919 			"no mclk configured, call set_sysclk() on init\n");
920 		return -EINVAL;
921 	}
922 
923 	ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
924 	if (ret) {
925 		dev_err(component->dev, "Can not set PLL (%d)\n", ret);
926 		return -EPERM;
927 	}
928 
929 	return 0;
930 }
931 
twl6040_set_dai_sysclk(struct snd_soc_dai * codec_dai,int clk_id,unsigned int freq,int dir)932 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
933 		int clk_id, unsigned int freq, int dir)
934 {
935 	struct snd_soc_component *component = codec_dai->component;
936 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
937 
938 	switch (clk_id) {
939 	case TWL6040_SYSCLK_SEL_LPPLL:
940 	case TWL6040_SYSCLK_SEL_HPPLL:
941 		priv->pll = clk_id;
942 		priv->clk_in = freq;
943 		break;
944 	default:
945 		dev_err(component->dev, "unknown clk_id %d\n", clk_id);
946 		return -EINVAL;
947 	}
948 
949 	return 0;
950 }
951 
twl6040_mute_path(struct snd_soc_component * component,enum twl6040_dai_id id,int mute)952 static void twl6040_mute_path(struct snd_soc_component *component, enum twl6040_dai_id id,
953 			     int mute)
954 {
955 	struct twl6040 *twl6040 = to_twl6040(component);
956 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
957 	int hslctl, hsrctl, earctl;
958 	int hflctl, hfrctl;
959 
960 	switch (id) {
961 	case TWL6040_DAI_DL1:
962 		hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
963 		hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
964 		earctl = twl6040_read(component, TWL6040_REG_EARCTL);
965 
966 		if (mute) {
967 			/* Power down drivers and DACs */
968 			earctl &= ~0x01;
969 			hslctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
970 			hsrctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
971 
972 		}
973 
974 		twl6040_reg_write(twl6040, TWL6040_REG_EARCTL, earctl);
975 		twl6040_reg_write(twl6040, TWL6040_REG_HSLCTL, hslctl);
976 		twl6040_reg_write(twl6040, TWL6040_REG_HSRCTL, hsrctl);
977 		priv->dl1_unmuted = !mute;
978 		break;
979 	case TWL6040_DAI_DL2:
980 		hflctl = twl6040_read(component, TWL6040_REG_HFLCTL);
981 		hfrctl = twl6040_read(component, TWL6040_REG_HFRCTL);
982 
983 		if (mute) {
984 			/* Power down drivers and DACs */
985 			hflctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
986 				    TWL6040_HFDRVENA | TWL6040_HFSWENA);
987 			hfrctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
988 				    TWL6040_HFDRVENA | TWL6040_HFSWENA);
989 		}
990 
991 		twl6040_reg_write(twl6040, TWL6040_REG_HFLCTL, hflctl);
992 		twl6040_reg_write(twl6040, TWL6040_REG_HFRCTL, hfrctl);
993 		priv->dl2_unmuted = !mute;
994 		break;
995 	default:
996 		break;
997 	}
998 }
999 
twl6040_mute_stream(struct snd_soc_dai * dai,int mute,int direction)1000 static int twl6040_mute_stream(struct snd_soc_dai *dai, int mute, int direction)
1001 {
1002 	switch (dai->id) {
1003 	case TWL6040_DAI_LEGACY:
1004 		twl6040_mute_path(dai->component, TWL6040_DAI_DL1, mute);
1005 		twl6040_mute_path(dai->component, TWL6040_DAI_DL2, mute);
1006 		break;
1007 	case TWL6040_DAI_DL1:
1008 	case TWL6040_DAI_DL2:
1009 		twl6040_mute_path(dai->component, dai->id, mute);
1010 		break;
1011 	default:
1012 		break;
1013 	}
1014 
1015 	return 0;
1016 }
1017 
1018 static const struct snd_soc_dai_ops twl6040_dai_ops = {
1019 	.startup	= twl6040_startup,
1020 	.hw_params	= twl6040_hw_params,
1021 	.prepare	= twl6040_prepare,
1022 	.set_sysclk	= twl6040_set_dai_sysclk,
1023 	.mute_stream	= twl6040_mute_stream,
1024 	.no_capture_mute = 1,
1025 };
1026 
1027 static struct snd_soc_dai_driver twl6040_dai[] = {
1028 {
1029 	.name = "twl6040-legacy",
1030 	.id = TWL6040_DAI_LEGACY,
1031 	.playback = {
1032 		.stream_name = "Legacy Playback",
1033 		.channels_min = 1,
1034 		.channels_max = 5,
1035 		.rates = TWL6040_RATES,
1036 		.formats = TWL6040_FORMATS,
1037 	},
1038 	.capture = {
1039 		.stream_name = "Legacy Capture",
1040 		.channels_min = 1,
1041 		.channels_max = 2,
1042 		.rates = TWL6040_RATES,
1043 		.formats = TWL6040_FORMATS,
1044 	},
1045 	.ops = &twl6040_dai_ops,
1046 },
1047 {
1048 	.name = "twl6040-ul",
1049 	.id = TWL6040_DAI_UL,
1050 	.capture = {
1051 		.stream_name = "Capture",
1052 		.channels_min = 1,
1053 		.channels_max = 2,
1054 		.rates = TWL6040_RATES,
1055 		.formats = TWL6040_FORMATS,
1056 	},
1057 	.ops = &twl6040_dai_ops,
1058 },
1059 {
1060 	.name = "twl6040-dl1",
1061 	.id = TWL6040_DAI_DL1,
1062 	.playback = {
1063 		.stream_name = "Headset Playback",
1064 		.channels_min = 1,
1065 		.channels_max = 2,
1066 		.rates = TWL6040_RATES,
1067 		.formats = TWL6040_FORMATS,
1068 	},
1069 	.ops = &twl6040_dai_ops,
1070 },
1071 {
1072 	.name = "twl6040-dl2",
1073 	.id = TWL6040_DAI_DL2,
1074 	.playback = {
1075 		.stream_name = "Handsfree Playback",
1076 		.channels_min = 1,
1077 		.channels_max = 2,
1078 		.rates = TWL6040_RATES,
1079 		.formats = TWL6040_FORMATS,
1080 	},
1081 	.ops = &twl6040_dai_ops,
1082 },
1083 {
1084 	.name = "twl6040-vib",
1085 	.id = TWL6040_DAI_VIB,
1086 	.playback = {
1087 		.stream_name = "Vibra Playback",
1088 		.channels_min = 1,
1089 		.channels_max = 1,
1090 		.rates = SNDRV_PCM_RATE_CONTINUOUS,
1091 		.formats = TWL6040_FORMATS,
1092 	},
1093 	.ops = &twl6040_dai_ops,
1094 },
1095 };
1096 
twl6040_probe(struct snd_soc_component * component)1097 static int twl6040_probe(struct snd_soc_component *component)
1098 {
1099 	struct twl6040_data *priv;
1100 	struct platform_device *pdev = to_platform_device(component->dev);
1101 	int ret = 0;
1102 
1103 	priv = devm_kzalloc(component->dev, sizeof(*priv), GFP_KERNEL);
1104 	if (priv == NULL)
1105 		return -ENOMEM;
1106 
1107 	snd_soc_component_set_drvdata(component, priv);
1108 
1109 	priv->component = component;
1110 
1111 	priv->plug_irq = platform_get_irq(pdev, 0);
1112 	if (priv->plug_irq < 0)
1113 		return priv->plug_irq;
1114 
1115 	INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
1116 
1117 	mutex_init(&priv->mutex);
1118 
1119 	ret = request_threaded_irq(priv->plug_irq, NULL,
1120 					twl6040_audio_handler,
1121 					IRQF_NO_SUSPEND | IRQF_ONESHOT,
1122 					"twl6040_irq_plug", component);
1123 	if (ret) {
1124 		dev_err(component->dev, "PLUG IRQ request failed: %d\n", ret);
1125 		return ret;
1126 	}
1127 
1128 	snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
1129 	twl6040_init_chip(component);
1130 
1131 	return 0;
1132 }
1133 
twl6040_remove(struct snd_soc_component * component)1134 static void twl6040_remove(struct snd_soc_component *component)
1135 {
1136 	struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
1137 
1138 	free_irq(priv->plug_irq, component);
1139 }
1140 
1141 static const struct snd_soc_component_driver soc_component_dev_twl6040 = {
1142 	.probe			= twl6040_probe,
1143 	.remove			= twl6040_remove,
1144 	.read			= twl6040_read,
1145 	.write			= twl6040_write,
1146 	.set_bias_level		= twl6040_set_bias_level,
1147 	.controls		= twl6040_snd_controls,
1148 	.num_controls		= ARRAY_SIZE(twl6040_snd_controls),
1149 	.dapm_widgets		= twl6040_dapm_widgets,
1150 	.num_dapm_widgets	= ARRAY_SIZE(twl6040_dapm_widgets),
1151 	.dapm_routes		= intercon,
1152 	.num_dapm_routes	= ARRAY_SIZE(intercon),
1153 	.suspend_bias_off	= 1,
1154 	.idle_bias_on		= 1,
1155 	.endianness		= 1,
1156 };
1157 
twl6040_codec_probe(struct platform_device * pdev)1158 static int twl6040_codec_probe(struct platform_device *pdev)
1159 {
1160 	return devm_snd_soc_register_component(&pdev->dev,
1161 				      &soc_component_dev_twl6040,
1162 				      twl6040_dai, ARRAY_SIZE(twl6040_dai));
1163 }
1164 
1165 static struct platform_driver twl6040_codec_driver = {
1166 	.driver = {
1167 		.name = "twl6040-codec",
1168 	},
1169 	.probe = twl6040_codec_probe,
1170 };
1171 
1172 module_platform_driver(twl6040_codec_driver);
1173 
1174 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1175 MODULE_AUTHOR("Misael Lopez Cruz");
1176 MODULE_LICENSE("GPL");
1177