xref: /openbmc/linux/sound/soc/codecs/twl4030.c (revision 3cea11cd)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * ALSA SoC TWL4030 codec driver
4  *
5  * Author:      Steve Sakoman, <steve@sakoman.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/i2c.h>
14 #include <linux/platform_device.h>
15 #include <linux/of.h>
16 #include <linux/of_gpio.h>
17 #include <linux/mfd/twl.h>
18 #include <linux/slab.h>
19 #include <linux/gpio.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24 #include <sound/initval.h>
25 #include <sound/tlv.h>
26 
27 /* Register descriptions are here */
28 #include <linux/mfd/twl4030-audio.h>
29 
30 /* TWL4030 PMBR1 Register */
31 #define TWL4030_PMBR1_REG		0x0D
32 /* TWL4030 PMBR1 Register GPIO6 mux bits */
33 #define TWL4030_GPIO6_PWM0_MUTE(value)	((value & 0x03) << 2)
34 
35 #define TWL4030_CACHEREGNUM	(TWL4030_REG_MISC_SET_2 + 1)
36 
37 /* codec private data */
38 struct twl4030_priv {
39 	unsigned int codec_powered;
40 
41 	/* reference counts of AIF/APLL users */
42 	unsigned int apll_enabled;
43 
44 	struct snd_pcm_substream *master_substream;
45 	struct snd_pcm_substream *slave_substream;
46 
47 	unsigned int configured;
48 	unsigned int rate;
49 	unsigned int sample_bits;
50 	unsigned int channels;
51 
52 	unsigned int sysclk;
53 
54 	/* Output (with associated amp) states */
55 	u8 hsl_enabled, hsr_enabled;
56 	u8 earpiece_enabled;
57 	u8 predrivel_enabled, predriver_enabled;
58 	u8 carkitl_enabled, carkitr_enabled;
59 	u8 ctl_cache[TWL4030_REG_PRECKR_CTL - TWL4030_REG_EAR_CTL + 1];
60 
61 	struct twl4030_codec_data *pdata;
62 };
63 
64 static void tw4030_init_ctl_cache(struct twl4030_priv *twl4030)
65 {
66 	int i;
67 	u8 byte;
68 
69 	for (i = TWL4030_REG_EAR_CTL; i <= TWL4030_REG_PRECKR_CTL; i++) {
70 		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, i);
71 		twl4030->ctl_cache[i - TWL4030_REG_EAR_CTL] = byte;
72 	}
73 }
74 
75 static unsigned int twl4030_read(struct snd_soc_component *component, unsigned int reg)
76 {
77 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
78 	u8 value = 0;
79 
80 	if (reg >= TWL4030_CACHEREGNUM)
81 		return -EIO;
82 
83 	switch (reg) {
84 	case TWL4030_REG_EAR_CTL:
85 	case TWL4030_REG_PREDL_CTL:
86 	case TWL4030_REG_PREDR_CTL:
87 	case TWL4030_REG_PRECKL_CTL:
88 	case TWL4030_REG_PRECKR_CTL:
89 	case TWL4030_REG_HS_GAIN_SET:
90 		value = twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL];
91 		break;
92 	default:
93 		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &value, reg);
94 		break;
95 	}
96 
97 	return value;
98 }
99 
100 static bool twl4030_can_write_to_chip(struct twl4030_priv *twl4030,
101 				      unsigned int reg)
102 {
103 	bool write_to_reg = false;
104 
105 	/* Decide if the given register can be written */
106 	switch (reg) {
107 	case TWL4030_REG_EAR_CTL:
108 		if (twl4030->earpiece_enabled)
109 			write_to_reg = true;
110 		break;
111 	case TWL4030_REG_PREDL_CTL:
112 		if (twl4030->predrivel_enabled)
113 			write_to_reg = true;
114 		break;
115 	case TWL4030_REG_PREDR_CTL:
116 		if (twl4030->predriver_enabled)
117 			write_to_reg = true;
118 		break;
119 	case TWL4030_REG_PRECKL_CTL:
120 		if (twl4030->carkitl_enabled)
121 			write_to_reg = true;
122 		break;
123 	case TWL4030_REG_PRECKR_CTL:
124 		if (twl4030->carkitr_enabled)
125 			write_to_reg = true;
126 		break;
127 	case TWL4030_REG_HS_GAIN_SET:
128 		if (twl4030->hsl_enabled || twl4030->hsr_enabled)
129 			write_to_reg = true;
130 		break;
131 	default:
132 		/* All other register can be written */
133 		write_to_reg = true;
134 		break;
135 	}
136 
137 	return write_to_reg;
138 }
139 
140 static int twl4030_write(struct snd_soc_component *component, unsigned int reg,
141 			 unsigned int value)
142 {
143 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
144 
145 	/* Update the ctl cache */
146 	switch (reg) {
147 	case TWL4030_REG_EAR_CTL:
148 	case TWL4030_REG_PREDL_CTL:
149 	case TWL4030_REG_PREDR_CTL:
150 	case TWL4030_REG_PRECKL_CTL:
151 	case TWL4030_REG_PRECKR_CTL:
152 	case TWL4030_REG_HS_GAIN_SET:
153 		twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL] = value;
154 		break;
155 	default:
156 		break;
157 	}
158 
159 	if (twl4030_can_write_to_chip(twl4030, reg))
160 		return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);
161 
162 	return 0;
163 }
164 
165 static inline void twl4030_wait_ms(int time)
166 {
167 	if (time < 60) {
168 		time *= 1000;
169 		usleep_range(time, time + 500);
170 	} else {
171 		msleep(time);
172 	}
173 }
174 
175 static void twl4030_codec_enable(struct snd_soc_component *component, int enable)
176 {
177 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
178 	int mode;
179 
180 	if (enable == twl4030->codec_powered)
181 		return;
182 
183 	if (enable)
184 		mode = twl4030_audio_enable_resource(TWL4030_AUDIO_RES_POWER);
185 	else
186 		mode = twl4030_audio_disable_resource(TWL4030_AUDIO_RES_POWER);
187 
188 	if (mode >= 0)
189 		twl4030->codec_powered = enable;
190 
191 	/* REVISIT: this delay is present in TI sample drivers */
192 	/* but there seems to be no TRM requirement for it     */
193 	udelay(10);
194 }
195 
196 static void twl4030_setup_pdata_of(struct twl4030_codec_data *pdata,
197 				   struct device_node *node)
198 {
199 	int value;
200 
201 	of_property_read_u32(node, "ti,digimic_delay",
202 			     &pdata->digimic_delay);
203 	of_property_read_u32(node, "ti,ramp_delay_value",
204 			     &pdata->ramp_delay_value);
205 	of_property_read_u32(node, "ti,offset_cncl_path",
206 			     &pdata->offset_cncl_path);
207 	if (!of_property_read_u32(node, "ti,hs_extmute", &value))
208 		pdata->hs_extmute = value;
209 
210 	pdata->hs_extmute_gpio = of_get_named_gpio(node,
211 						   "ti,hs_extmute_gpio", 0);
212 	if (gpio_is_valid(pdata->hs_extmute_gpio))
213 		pdata->hs_extmute = 1;
214 }
215 
216 static struct twl4030_codec_data *twl4030_get_pdata(struct snd_soc_component *component)
217 {
218 	struct twl4030_codec_data *pdata = dev_get_platdata(component->dev);
219 	struct device_node *twl4030_codec_node = NULL;
220 
221 	twl4030_codec_node = of_get_child_by_name(component->dev->parent->of_node,
222 						  "codec");
223 
224 	if (!pdata && twl4030_codec_node) {
225 		pdata = devm_kzalloc(component->dev,
226 				     sizeof(struct twl4030_codec_data),
227 				     GFP_KERNEL);
228 		if (!pdata) {
229 			of_node_put(twl4030_codec_node);
230 			return NULL;
231 		}
232 		twl4030_setup_pdata_of(pdata, twl4030_codec_node);
233 		of_node_put(twl4030_codec_node);
234 	}
235 
236 	return pdata;
237 }
238 
239 static void twl4030_init_chip(struct snd_soc_component *component)
240 {
241 	struct twl4030_codec_data *pdata;
242 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
243 	u8 reg, byte;
244 	int i = 0;
245 
246 	pdata = twl4030_get_pdata(component);
247 
248 	if (pdata && pdata->hs_extmute) {
249 		if (gpio_is_valid(pdata->hs_extmute_gpio)) {
250 			int ret;
251 
252 			if (!pdata->hs_extmute_gpio)
253 				dev_warn(component->dev,
254 					"Extmute GPIO is 0 is this correct?\n");
255 
256 			ret = gpio_request_one(pdata->hs_extmute_gpio,
257 					       GPIOF_OUT_INIT_LOW,
258 					       "hs_extmute");
259 			if (ret) {
260 				dev_err(component->dev,
261 					"Failed to get hs_extmute GPIO\n");
262 				pdata->hs_extmute_gpio = -1;
263 			}
264 		} else {
265 			u8 pin_mux;
266 
267 			/* Set TWL4030 GPIO6 as EXTMUTE signal */
268 			twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
269 					TWL4030_PMBR1_REG);
270 			pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
271 			pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02);
272 			twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
273 					 TWL4030_PMBR1_REG);
274 		}
275 	}
276 
277 	/* Initialize the local ctl register cache */
278 	tw4030_init_ctl_cache(twl4030);
279 
280 	/* anti-pop when changing analog gain */
281 	reg = twl4030_read(component, TWL4030_REG_MISC_SET_1);
282 	twl4030_write(component, TWL4030_REG_MISC_SET_1,
283 		      reg | TWL4030_SMOOTH_ANAVOL_EN);
284 
285 	twl4030_write(component, TWL4030_REG_OPTION,
286 		      TWL4030_ATXL1_EN | TWL4030_ATXR1_EN |
287 		      TWL4030_ARXL2_EN | TWL4030_ARXR2_EN);
288 
289 	/* REG_ARXR2_APGA_CTL reset according to the TRM: 0dB, DA_EN */
290 	twl4030_write(component, TWL4030_REG_ARXR2_APGA_CTL, 0x32);
291 
292 	/* Machine dependent setup */
293 	if (!pdata)
294 		return;
295 
296 	twl4030->pdata = pdata;
297 
298 	reg = twl4030_read(component, TWL4030_REG_HS_POPN_SET);
299 	reg &= ~TWL4030_RAMP_DELAY;
300 	reg |= (pdata->ramp_delay_value << 2);
301 	twl4030_write(component, TWL4030_REG_HS_POPN_SET, reg);
302 
303 	/* initiate offset cancellation */
304 	twl4030_codec_enable(component, 1);
305 
306 	reg = twl4030_read(component, TWL4030_REG_ANAMICL);
307 	reg &= ~TWL4030_OFFSET_CNCL_SEL;
308 	reg |= pdata->offset_cncl_path;
309 	twl4030_write(component, TWL4030_REG_ANAMICL,
310 		      reg | TWL4030_CNCL_OFFSET_START);
311 
312 	/*
313 	 * Wait for offset cancellation to complete.
314 	 * Since this takes a while, do not slam the i2c.
315 	 * Start polling the status after ~20ms.
316 	 */
317 	msleep(20);
318 	do {
319 		usleep_range(1000, 2000);
320 		twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, true);
321 		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte,
322 				TWL4030_REG_ANAMICL);
323 		twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, false);
324 	} while ((i++ < 100) &&
325 		 ((byte & TWL4030_CNCL_OFFSET_START) ==
326 		  TWL4030_CNCL_OFFSET_START));
327 
328 	twl4030_codec_enable(component, 0);
329 }
330 
331 static void twl4030_apll_enable(struct snd_soc_component *component, int enable)
332 {
333 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
334 
335 	if (enable) {
336 		twl4030->apll_enabled++;
337 		if (twl4030->apll_enabled == 1)
338 			twl4030_audio_enable_resource(
339 							TWL4030_AUDIO_RES_APLL);
340 	} else {
341 		twl4030->apll_enabled--;
342 		if (!twl4030->apll_enabled)
343 			twl4030_audio_disable_resource(
344 							TWL4030_AUDIO_RES_APLL);
345 	}
346 }
347 
348 /* Earpiece */
349 static const struct snd_kcontrol_new twl4030_dapm_earpiece_controls[] = {
350 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_EAR_CTL, 0, 1, 0),
351 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_EAR_CTL, 1, 1, 0),
352 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_EAR_CTL, 2, 1, 0),
353 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_EAR_CTL, 3, 1, 0),
354 };
355 
356 /* PreDrive Left */
357 static const struct snd_kcontrol_new twl4030_dapm_predrivel_controls[] = {
358 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDL_CTL, 0, 1, 0),
359 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PREDL_CTL, 1, 1, 0),
360 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDL_CTL, 2, 1, 0),
361 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDL_CTL, 3, 1, 0),
362 };
363 
364 /* PreDrive Right */
365 static const struct snd_kcontrol_new twl4030_dapm_predriver_controls[] = {
366 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDR_CTL, 0, 1, 0),
367 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PREDR_CTL, 1, 1, 0),
368 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDR_CTL, 2, 1, 0),
369 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDR_CTL, 3, 1, 0),
370 };
371 
372 /* Headset Left */
373 static const struct snd_kcontrol_new twl4030_dapm_hsol_controls[] = {
374 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 0, 1, 0),
375 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_HS_SEL, 1, 1, 0),
376 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_HS_SEL, 2, 1, 0),
377 };
378 
379 /* Headset Right */
380 static const struct snd_kcontrol_new twl4030_dapm_hsor_controls[] = {
381 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 3, 1, 0),
382 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_HS_SEL, 4, 1, 0),
383 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_HS_SEL, 5, 1, 0),
384 };
385 
386 /* Carkit Left */
387 static const struct snd_kcontrol_new twl4030_dapm_carkitl_controls[] = {
388 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKL_CTL, 0, 1, 0),
389 	SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PRECKL_CTL, 1, 1, 0),
390 	SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PRECKL_CTL, 2, 1, 0),
391 };
392 
393 /* Carkit Right */
394 static const struct snd_kcontrol_new twl4030_dapm_carkitr_controls[] = {
395 	SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKR_CTL, 0, 1, 0),
396 	SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PRECKR_CTL, 1, 1, 0),
397 	SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PRECKR_CTL, 2, 1, 0),
398 };
399 
400 /* Handsfree Left */
401 static const char *twl4030_handsfreel_texts[] =
402 		{"Voice", "AudioL1", "AudioL2", "AudioR2"};
403 
404 static SOC_ENUM_SINGLE_DECL(twl4030_handsfreel_enum,
405 			    TWL4030_REG_HFL_CTL, 0,
406 			    twl4030_handsfreel_texts);
407 
408 static const struct snd_kcontrol_new twl4030_dapm_handsfreel_control =
409 SOC_DAPM_ENUM("Route", twl4030_handsfreel_enum);
410 
411 /* Handsfree Left virtual mute */
412 static const struct snd_kcontrol_new twl4030_dapm_handsfreelmute_control =
413 	SOC_DAPM_SINGLE_VIRT("Switch", 1);
414 
415 /* Handsfree Right */
416 static const char *twl4030_handsfreer_texts[] =
417 		{"Voice", "AudioR1", "AudioR2", "AudioL2"};
418 
419 static SOC_ENUM_SINGLE_DECL(twl4030_handsfreer_enum,
420 			    TWL4030_REG_HFR_CTL, 0,
421 			    twl4030_handsfreer_texts);
422 
423 static const struct snd_kcontrol_new twl4030_dapm_handsfreer_control =
424 SOC_DAPM_ENUM("Route", twl4030_handsfreer_enum);
425 
426 /* Handsfree Right virtual mute */
427 static const struct snd_kcontrol_new twl4030_dapm_handsfreermute_control =
428 	SOC_DAPM_SINGLE_VIRT("Switch", 1);
429 
430 /* Vibra */
431 /* Vibra audio path selection */
432 static const char *twl4030_vibra_texts[] =
433 		{"AudioL1", "AudioR1", "AudioL2", "AudioR2"};
434 
435 static SOC_ENUM_SINGLE_DECL(twl4030_vibra_enum,
436 			    TWL4030_REG_VIBRA_CTL, 2,
437 			    twl4030_vibra_texts);
438 
439 static const struct snd_kcontrol_new twl4030_dapm_vibra_control =
440 SOC_DAPM_ENUM("Route", twl4030_vibra_enum);
441 
442 /* Vibra path selection: local vibrator (PWM) or audio driven */
443 static const char *twl4030_vibrapath_texts[] =
444 		{"Local vibrator", "Audio"};
445 
446 static SOC_ENUM_SINGLE_DECL(twl4030_vibrapath_enum,
447 			    TWL4030_REG_VIBRA_CTL, 4,
448 			    twl4030_vibrapath_texts);
449 
450 static const struct snd_kcontrol_new twl4030_dapm_vibrapath_control =
451 SOC_DAPM_ENUM("Route", twl4030_vibrapath_enum);
452 
453 /* Left analog microphone selection */
454 static const struct snd_kcontrol_new twl4030_dapm_analoglmic_controls[] = {
455 	SOC_DAPM_SINGLE("Main Mic Capture Switch",
456 			TWL4030_REG_ANAMICL, 0, 1, 0),
457 	SOC_DAPM_SINGLE("Headset Mic Capture Switch",
458 			TWL4030_REG_ANAMICL, 1, 1, 0),
459 	SOC_DAPM_SINGLE("AUXL Capture Switch",
460 			TWL4030_REG_ANAMICL, 2, 1, 0),
461 	SOC_DAPM_SINGLE("Carkit Mic Capture Switch",
462 			TWL4030_REG_ANAMICL, 3, 1, 0),
463 };
464 
465 /* Right analog microphone selection */
466 static const struct snd_kcontrol_new twl4030_dapm_analogrmic_controls[] = {
467 	SOC_DAPM_SINGLE("Sub Mic Capture Switch", TWL4030_REG_ANAMICR, 0, 1, 0),
468 	SOC_DAPM_SINGLE("AUXR Capture Switch", TWL4030_REG_ANAMICR, 2, 1, 0),
469 };
470 
471 /* TX1 L/R Analog/Digital microphone selection */
472 static const char *twl4030_micpathtx1_texts[] =
473 		{"Analog", "Digimic0"};
474 
475 static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx1_enum,
476 			    TWL4030_REG_ADCMICSEL, 0,
477 			    twl4030_micpathtx1_texts);
478 
479 static const struct snd_kcontrol_new twl4030_dapm_micpathtx1_control =
480 SOC_DAPM_ENUM("Route", twl4030_micpathtx1_enum);
481 
482 /* TX2 L/R Analog/Digital microphone selection */
483 static const char *twl4030_micpathtx2_texts[] =
484 		{"Analog", "Digimic1"};
485 
486 static SOC_ENUM_SINGLE_DECL(twl4030_micpathtx2_enum,
487 			    TWL4030_REG_ADCMICSEL, 2,
488 			    twl4030_micpathtx2_texts);
489 
490 static const struct snd_kcontrol_new twl4030_dapm_micpathtx2_control =
491 SOC_DAPM_ENUM("Route", twl4030_micpathtx2_enum);
492 
493 /* Analog bypass for AudioR1 */
494 static const struct snd_kcontrol_new twl4030_dapm_abypassr1_control =
495 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR1_APGA_CTL, 2, 1, 0);
496 
497 /* Analog bypass for AudioL1 */
498 static const struct snd_kcontrol_new twl4030_dapm_abypassl1_control =
499 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL1_APGA_CTL, 2, 1, 0);
500 
501 /* Analog bypass for AudioR2 */
502 static const struct snd_kcontrol_new twl4030_dapm_abypassr2_control =
503 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXR2_APGA_CTL, 2, 1, 0);
504 
505 /* Analog bypass for AudioL2 */
506 static const struct snd_kcontrol_new twl4030_dapm_abypassl2_control =
507 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_ARXL2_APGA_CTL, 2, 1, 0);
508 
509 /* Analog bypass for Voice */
510 static const struct snd_kcontrol_new twl4030_dapm_abypassv_control =
511 	SOC_DAPM_SINGLE("Switch", TWL4030_REG_VDL_APGA_CTL, 2, 1, 0);
512 
513 /* Digital bypass gain, mute instead of -30dB */
514 static const DECLARE_TLV_DB_RANGE(twl4030_dapm_dbypass_tlv,
515 	0, 1, TLV_DB_SCALE_ITEM(-3000, 600, 1),
516 	2, 3, TLV_DB_SCALE_ITEM(-2400, 0, 0),
517 	4, 7, TLV_DB_SCALE_ITEM(-1800, 600, 0)
518 );
519 
520 /* Digital bypass left (TX1L -> RX2L) */
521 static const struct snd_kcontrol_new twl4030_dapm_dbypassl_control =
522 	SOC_DAPM_SINGLE_TLV("Volume",
523 			TWL4030_REG_ATX2ARXPGA, 3, 7, 0,
524 			twl4030_dapm_dbypass_tlv);
525 
526 /* Digital bypass right (TX1R -> RX2R) */
527 static const struct snd_kcontrol_new twl4030_dapm_dbypassr_control =
528 	SOC_DAPM_SINGLE_TLV("Volume",
529 			TWL4030_REG_ATX2ARXPGA, 0, 7, 0,
530 			twl4030_dapm_dbypass_tlv);
531 
532 /*
533  * Voice Sidetone GAIN volume control:
534  * from -51 to -10 dB in 1 dB steps (mute instead of -51 dB)
535  */
536 static DECLARE_TLV_DB_SCALE(twl4030_dapm_dbypassv_tlv, -5100, 100, 1);
537 
538 /* Digital bypass voice: sidetone (VUL -> VDL)*/
539 static const struct snd_kcontrol_new twl4030_dapm_dbypassv_control =
540 	SOC_DAPM_SINGLE_TLV("Volume",
541 			TWL4030_REG_VSTPGA, 0, 0x29, 0,
542 			twl4030_dapm_dbypassv_tlv);
543 
544 /*
545  * Output PGA builder:
546  * Handle the muting and unmuting of the given output (turning off the
547  * amplifier associated with the output pin)
548  * On mute bypass the reg_cache and write 0 to the register
549  * On unmute: restore the register content from the reg_cache
550  * Outputs handled in this way:  Earpiece, PreDrivL/R, CarkitL/R
551  */
552 #define TWL4030_OUTPUT_PGA(pin_name, reg, mask)				\
553 static int pin_name##pga_event(struct snd_soc_dapm_widget *w,		\
554 			       struct snd_kcontrol *kcontrol, int event) \
555 {									\
556 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);	\
557 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component); \
558 									\
559 	switch (event) {						\
560 	case SND_SOC_DAPM_POST_PMU:					\
561 		twl4030->pin_name##_enabled = 1;			\
562 		twl4030_write(component, reg, twl4030_read(component, reg));	\
563 		break;							\
564 	case SND_SOC_DAPM_POST_PMD:					\
565 		twl4030->pin_name##_enabled = 0;			\
566 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, 0, reg);	\
567 		break;							\
568 	}								\
569 	return 0;							\
570 }
571 
572 TWL4030_OUTPUT_PGA(earpiece, TWL4030_REG_EAR_CTL, TWL4030_EAR_GAIN);
573 TWL4030_OUTPUT_PGA(predrivel, TWL4030_REG_PREDL_CTL, TWL4030_PREDL_GAIN);
574 TWL4030_OUTPUT_PGA(predriver, TWL4030_REG_PREDR_CTL, TWL4030_PREDR_GAIN);
575 TWL4030_OUTPUT_PGA(carkitl, TWL4030_REG_PRECKL_CTL, TWL4030_PRECKL_GAIN);
576 TWL4030_OUTPUT_PGA(carkitr, TWL4030_REG_PRECKR_CTL, TWL4030_PRECKR_GAIN);
577 
578 static void handsfree_ramp(struct snd_soc_component *component, int reg, int ramp)
579 {
580 	unsigned char hs_ctl;
581 
582 	hs_ctl = twl4030_read(component, reg);
583 
584 	if (ramp) {
585 		/* HF ramp-up */
586 		hs_ctl |= TWL4030_HF_CTL_REF_EN;
587 		twl4030_write(component, reg, hs_ctl);
588 		udelay(10);
589 		hs_ctl |= TWL4030_HF_CTL_RAMP_EN;
590 		twl4030_write(component, reg, hs_ctl);
591 		udelay(40);
592 		hs_ctl |= TWL4030_HF_CTL_LOOP_EN;
593 		hs_ctl |= TWL4030_HF_CTL_HB_EN;
594 		twl4030_write(component, reg, hs_ctl);
595 	} else {
596 		/* HF ramp-down */
597 		hs_ctl &= ~TWL4030_HF_CTL_LOOP_EN;
598 		hs_ctl &= ~TWL4030_HF_CTL_HB_EN;
599 		twl4030_write(component, reg, hs_ctl);
600 		hs_ctl &= ~TWL4030_HF_CTL_RAMP_EN;
601 		twl4030_write(component, reg, hs_ctl);
602 		udelay(40);
603 		hs_ctl &= ~TWL4030_HF_CTL_REF_EN;
604 		twl4030_write(component, reg, hs_ctl);
605 	}
606 }
607 
608 static int handsfreelpga_event(struct snd_soc_dapm_widget *w,
609 			       struct snd_kcontrol *kcontrol, int event)
610 {
611 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
612 
613 	switch (event) {
614 	case SND_SOC_DAPM_POST_PMU:
615 		handsfree_ramp(component, TWL4030_REG_HFL_CTL, 1);
616 		break;
617 	case SND_SOC_DAPM_POST_PMD:
618 		handsfree_ramp(component, TWL4030_REG_HFL_CTL, 0);
619 		break;
620 	}
621 	return 0;
622 }
623 
624 static int handsfreerpga_event(struct snd_soc_dapm_widget *w,
625 			       struct snd_kcontrol *kcontrol, int event)
626 {
627 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
628 
629 	switch (event) {
630 	case SND_SOC_DAPM_POST_PMU:
631 		handsfree_ramp(component, TWL4030_REG_HFR_CTL, 1);
632 		break;
633 	case SND_SOC_DAPM_POST_PMD:
634 		handsfree_ramp(component, TWL4030_REG_HFR_CTL, 0);
635 		break;
636 	}
637 	return 0;
638 }
639 
640 static int vibramux_event(struct snd_soc_dapm_widget *w,
641 			  struct snd_kcontrol *kcontrol, int event)
642 {
643 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
644 
645 	twl4030_write(component, TWL4030_REG_VIBRA_SET, 0xff);
646 	return 0;
647 }
648 
649 static int apll_event(struct snd_soc_dapm_widget *w,
650 		      struct snd_kcontrol *kcontrol, int event)
651 {
652 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
653 
654 	switch (event) {
655 	case SND_SOC_DAPM_PRE_PMU:
656 		twl4030_apll_enable(component, 1);
657 		break;
658 	case SND_SOC_DAPM_POST_PMD:
659 		twl4030_apll_enable(component, 0);
660 		break;
661 	}
662 	return 0;
663 }
664 
665 static int aif_event(struct snd_soc_dapm_widget *w,
666 		     struct snd_kcontrol *kcontrol, int event)
667 {
668 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
669 	u8 audio_if;
670 
671 	audio_if = twl4030_read(component, TWL4030_REG_AUDIO_IF);
672 	switch (event) {
673 	case SND_SOC_DAPM_PRE_PMU:
674 		/* Enable AIF */
675 		/* enable the PLL before we use it to clock the DAI */
676 		twl4030_apll_enable(component, 1);
677 
678 		twl4030_write(component, TWL4030_REG_AUDIO_IF,
679 			      audio_if | TWL4030_AIF_EN);
680 		break;
681 	case SND_SOC_DAPM_POST_PMD:
682 		/* disable the DAI before we stop it's source PLL */
683 		twl4030_write(component, TWL4030_REG_AUDIO_IF,
684 			      audio_if &  ~TWL4030_AIF_EN);
685 		twl4030_apll_enable(component, 0);
686 		break;
687 	}
688 	return 0;
689 }
690 
691 static void headset_ramp(struct snd_soc_component *component, int ramp)
692 {
693 	unsigned char hs_gain, hs_pop;
694 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
695 	struct twl4030_codec_data *pdata = twl4030->pdata;
696 	/* Base values for ramp delay calculation: 2^19 - 2^26 */
697 	unsigned int ramp_base[] = {524288, 1048576, 2097152, 4194304,
698 				    8388608, 16777216, 33554432, 67108864};
699 	unsigned int delay;
700 
701 	hs_gain = twl4030_read(component, TWL4030_REG_HS_GAIN_SET);
702 	hs_pop = twl4030_read(component, TWL4030_REG_HS_POPN_SET);
703 	delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
704 		twl4030->sysclk) + 1;
705 
706 	/* Enable external mute control, this dramatically reduces
707 	 * the pop-noise */
708 	if (pdata && pdata->hs_extmute) {
709 		if (gpio_is_valid(pdata->hs_extmute_gpio)) {
710 			gpio_set_value(pdata->hs_extmute_gpio, 1);
711 		} else {
712 			hs_pop |= TWL4030_EXTMUTE;
713 			twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
714 		}
715 	}
716 
717 	if (ramp) {
718 		/* Headset ramp-up according to the TRM */
719 		hs_pop |= TWL4030_VMID_EN;
720 		twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
721 		/* Actually write to the register */
722 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain,
723 				 TWL4030_REG_HS_GAIN_SET);
724 		hs_pop |= TWL4030_RAMP_EN;
725 		twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
726 		/* Wait ramp delay time + 1, so the VMID can settle */
727 		twl4030_wait_ms(delay);
728 	} else {
729 		/* Headset ramp-down _not_ according to
730 		 * the TRM, but in a way that it is working */
731 		hs_pop &= ~TWL4030_RAMP_EN;
732 		twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
733 		/* Wait ramp delay time + 1, so the VMID can settle */
734 		twl4030_wait_ms(delay);
735 		/* Bypass the reg_cache to mute the headset */
736 		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain & (~0x0f),
737 				 TWL4030_REG_HS_GAIN_SET);
738 
739 		hs_pop &= ~TWL4030_VMID_EN;
740 		twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
741 	}
742 
743 	/* Disable external mute */
744 	if (pdata && pdata->hs_extmute) {
745 		if (gpio_is_valid(pdata->hs_extmute_gpio)) {
746 			gpio_set_value(pdata->hs_extmute_gpio, 0);
747 		} else {
748 			hs_pop &= ~TWL4030_EXTMUTE;
749 			twl4030_write(component, TWL4030_REG_HS_POPN_SET, hs_pop);
750 		}
751 	}
752 }
753 
754 static int headsetlpga_event(struct snd_soc_dapm_widget *w,
755 			     struct snd_kcontrol *kcontrol, int event)
756 {
757 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
758 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
759 
760 	switch (event) {
761 	case SND_SOC_DAPM_POST_PMU:
762 		/* Do the ramp-up only once */
763 		if (!twl4030->hsr_enabled)
764 			headset_ramp(component, 1);
765 
766 		twl4030->hsl_enabled = 1;
767 		break;
768 	case SND_SOC_DAPM_POST_PMD:
769 		/* Do the ramp-down only if both headsetL/R is disabled */
770 		if (!twl4030->hsr_enabled)
771 			headset_ramp(component, 0);
772 
773 		twl4030->hsl_enabled = 0;
774 		break;
775 	}
776 	return 0;
777 }
778 
779 static int headsetrpga_event(struct snd_soc_dapm_widget *w,
780 			     struct snd_kcontrol *kcontrol, int event)
781 {
782 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
783 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
784 
785 	switch (event) {
786 	case SND_SOC_DAPM_POST_PMU:
787 		/* Do the ramp-up only once */
788 		if (!twl4030->hsl_enabled)
789 			headset_ramp(component, 1);
790 
791 		twl4030->hsr_enabled = 1;
792 		break;
793 	case SND_SOC_DAPM_POST_PMD:
794 		/* Do the ramp-down only if both headsetL/R is disabled */
795 		if (!twl4030->hsl_enabled)
796 			headset_ramp(component, 0);
797 
798 		twl4030->hsr_enabled = 0;
799 		break;
800 	}
801 	return 0;
802 }
803 
804 static int digimic_event(struct snd_soc_dapm_widget *w,
805 			 struct snd_kcontrol *kcontrol, int event)
806 {
807 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
808 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
809 	struct twl4030_codec_data *pdata = twl4030->pdata;
810 
811 	if (pdata && pdata->digimic_delay)
812 		twl4030_wait_ms(pdata->digimic_delay);
813 	return 0;
814 }
815 
816 /*
817  * Some of the gain controls in TWL (mostly those which are associated with
818  * the outputs) are implemented in an interesting way:
819  * 0x0 : Power down (mute)
820  * 0x1 : 6dB
821  * 0x2 : 0 dB
822  * 0x3 : -6 dB
823  * Inverting not going to help with these.
824  * Custom volsw and volsw_2r get/put functions to handle these gain bits.
825  */
826 static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol,
827 				     struct snd_ctl_elem_value *ucontrol)
828 {
829 	struct soc_mixer_control *mc =
830 		(struct soc_mixer_control *)kcontrol->private_value;
831 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
832 	unsigned int reg = mc->reg;
833 	unsigned int shift = mc->shift;
834 	unsigned int rshift = mc->rshift;
835 	int max = mc->max;
836 	int mask = (1 << fls(max)) - 1;
837 
838 	ucontrol->value.integer.value[0] =
839 		(twl4030_read(component, reg) >> shift) & mask;
840 	if (ucontrol->value.integer.value[0])
841 		ucontrol->value.integer.value[0] =
842 			max + 1 - ucontrol->value.integer.value[0];
843 
844 	if (shift != rshift) {
845 		ucontrol->value.integer.value[1] =
846 			(twl4030_read(component, reg) >> rshift) & mask;
847 		if (ucontrol->value.integer.value[1])
848 			ucontrol->value.integer.value[1] =
849 				max + 1 - ucontrol->value.integer.value[1];
850 	}
851 
852 	return 0;
853 }
854 
855 static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,
856 				     struct snd_ctl_elem_value *ucontrol)
857 {
858 	struct soc_mixer_control *mc =
859 		(struct soc_mixer_control *)kcontrol->private_value;
860 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
861 	unsigned int reg = mc->reg;
862 	unsigned int shift = mc->shift;
863 	unsigned int rshift = mc->rshift;
864 	int max = mc->max;
865 	int mask = (1 << fls(max)) - 1;
866 	unsigned short val, val2, val_mask;
867 
868 	val = (ucontrol->value.integer.value[0] & mask);
869 
870 	val_mask = mask << shift;
871 	if (val)
872 		val = max + 1 - val;
873 	val = val << shift;
874 	if (shift != rshift) {
875 		val2 = (ucontrol->value.integer.value[1] & mask);
876 		val_mask |= mask << rshift;
877 		if (val2)
878 			val2 = max + 1 - val2;
879 		val |= val2 << rshift;
880 	}
881 	return snd_soc_component_update_bits(component, reg, val_mask, val);
882 }
883 
884 static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
885 					struct snd_ctl_elem_value *ucontrol)
886 {
887 	struct soc_mixer_control *mc =
888 		(struct soc_mixer_control *)kcontrol->private_value;
889 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
890 	unsigned int reg = mc->reg;
891 	unsigned int reg2 = mc->rreg;
892 	unsigned int shift = mc->shift;
893 	int max = mc->max;
894 	int mask = (1<<fls(max))-1;
895 
896 	ucontrol->value.integer.value[0] =
897 		(twl4030_read(component, reg) >> shift) & mask;
898 	ucontrol->value.integer.value[1] =
899 		(twl4030_read(component, reg2) >> shift) & mask;
900 
901 	if (ucontrol->value.integer.value[0])
902 		ucontrol->value.integer.value[0] =
903 			max + 1 - ucontrol->value.integer.value[0];
904 	if (ucontrol->value.integer.value[1])
905 		ucontrol->value.integer.value[1] =
906 			max + 1 - ucontrol->value.integer.value[1];
907 
908 	return 0;
909 }
910 
911 static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
912 					struct snd_ctl_elem_value *ucontrol)
913 {
914 	struct soc_mixer_control *mc =
915 		(struct soc_mixer_control *)kcontrol->private_value;
916 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
917 	unsigned int reg = mc->reg;
918 	unsigned int reg2 = mc->rreg;
919 	unsigned int shift = mc->shift;
920 	int max = mc->max;
921 	int mask = (1 << fls(max)) - 1;
922 	int err;
923 	unsigned short val, val2, val_mask;
924 
925 	val_mask = mask << shift;
926 	val = (ucontrol->value.integer.value[0] & mask);
927 	val2 = (ucontrol->value.integer.value[1] & mask);
928 
929 	if (val)
930 		val = max + 1 - val;
931 	if (val2)
932 		val2 = max + 1 - val2;
933 
934 	val = val << shift;
935 	val2 = val2 << shift;
936 
937 	err = snd_soc_component_update_bits(component, reg, val_mask, val);
938 	if (err < 0)
939 		return err;
940 
941 	err = snd_soc_component_update_bits(component, reg2, val_mask, val2);
942 	return err;
943 }
944 
945 /* Codec operation modes */
946 static const char *twl4030_op_modes_texts[] = {
947 	"Option 2 (voice/audio)", "Option 1 (audio)"
948 };
949 
950 static SOC_ENUM_SINGLE_DECL(twl4030_op_modes_enum,
951 			    TWL4030_REG_CODEC_MODE, 0,
952 			    twl4030_op_modes_texts);
953 
954 static int snd_soc_put_twl4030_opmode_enum_double(struct snd_kcontrol *kcontrol,
955 	struct snd_ctl_elem_value *ucontrol)
956 {
957 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
958 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
959 
960 	if (twl4030->configured) {
961 		dev_err(component->dev,
962 			"operation mode cannot be changed on-the-fly\n");
963 		return -EBUSY;
964 	}
965 
966 	return snd_soc_put_enum_double(kcontrol, ucontrol);
967 }
968 
969 /*
970  * FGAIN volume control:
971  * from -62 to 0 dB in 1 dB steps (mute instead of -63 dB)
972  */
973 static DECLARE_TLV_DB_SCALE(digital_fine_tlv, -6300, 100, 1);
974 
975 /*
976  * CGAIN volume control:
977  * 0 dB to 12 dB in 6 dB steps
978  * value 2 and 3 means 12 dB
979  */
980 static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0);
981 
982 /*
983  * Voice Downlink GAIN volume control:
984  * from -37 to 12 dB in 1 dB steps (mute instead of -37 dB)
985  */
986 static DECLARE_TLV_DB_SCALE(digital_voice_downlink_tlv, -3700, 100, 1);
987 
988 /*
989  * Analog playback gain
990  * -24 dB to 12 dB in 2 dB steps
991  */
992 static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
993 
994 /*
995  * Gain controls tied to outputs
996  * -6 dB to 6 dB in 6 dB steps (mute instead of -12)
997  */
998 static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
999 
1000 /*
1001  * Gain control for earpiece amplifier
1002  * 0 dB to 12 dB in 6 dB steps (mute instead of -6)
1003  */
1004 static DECLARE_TLV_DB_SCALE(output_ear_tvl, -600, 600, 1);
1005 
1006 /*
1007  * Capture gain after the ADCs
1008  * from 0 dB to 31 dB in 1 dB steps
1009  */
1010 static DECLARE_TLV_DB_SCALE(digital_capture_tlv, 0, 100, 0);
1011 
1012 /*
1013  * Gain control for input amplifiers
1014  * 0 dB to 30 dB in 6 dB steps
1015  */
1016 static DECLARE_TLV_DB_SCALE(input_gain_tlv, 0, 600, 0);
1017 
1018 /* AVADC clock priority */
1019 static const char *twl4030_avadc_clk_priority_texts[] = {
1020 	"Voice high priority", "HiFi high priority"
1021 };
1022 
1023 static SOC_ENUM_SINGLE_DECL(twl4030_avadc_clk_priority_enum,
1024 			    TWL4030_REG_AVADC_CTL, 2,
1025 			    twl4030_avadc_clk_priority_texts);
1026 
1027 static const char *twl4030_rampdelay_texts[] = {
1028 	"27/20/14 ms", "55/40/27 ms", "109/81/55 ms", "218/161/109 ms",
1029 	"437/323/218 ms", "874/645/437 ms", "1748/1291/874 ms",
1030 	"3495/2581/1748 ms"
1031 };
1032 
1033 static SOC_ENUM_SINGLE_DECL(twl4030_rampdelay_enum,
1034 			    TWL4030_REG_HS_POPN_SET, 2,
1035 			    twl4030_rampdelay_texts);
1036 
1037 /* Vibra H-bridge direction mode */
1038 static const char *twl4030_vibradirmode_texts[] = {
1039 	"Vibra H-bridge direction", "Audio data MSB",
1040 };
1041 
1042 static SOC_ENUM_SINGLE_DECL(twl4030_vibradirmode_enum,
1043 			    TWL4030_REG_VIBRA_CTL, 5,
1044 			    twl4030_vibradirmode_texts);
1045 
1046 /* Vibra H-bridge direction */
1047 static const char *twl4030_vibradir_texts[] = {
1048 	"Positive polarity", "Negative polarity",
1049 };
1050 
1051 static SOC_ENUM_SINGLE_DECL(twl4030_vibradir_enum,
1052 			    TWL4030_REG_VIBRA_CTL, 1,
1053 			    twl4030_vibradir_texts);
1054 
1055 /* Digimic Left and right swapping */
1056 static const char *twl4030_digimicswap_texts[] = {
1057 	"Not swapped", "Swapped",
1058 };
1059 
1060 static SOC_ENUM_SINGLE_DECL(twl4030_digimicswap_enum,
1061 			    TWL4030_REG_MISC_SET_1, 0,
1062 			    twl4030_digimicswap_texts);
1063 
1064 static const struct snd_kcontrol_new twl4030_snd_controls[] = {
1065 	/* Codec operation mode control */
1066 	SOC_ENUM_EXT("Codec Operation Mode", twl4030_op_modes_enum,
1067 		snd_soc_get_enum_double,
1068 		snd_soc_put_twl4030_opmode_enum_double),
1069 
1070 	/* Common playback gain controls */
1071 	SOC_DOUBLE_R_TLV("DAC1 Digital Fine Playback Volume",
1072 		TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1073 		0, 0x3f, 0, digital_fine_tlv),
1074 	SOC_DOUBLE_R_TLV("DAC2 Digital Fine Playback Volume",
1075 		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1076 		0, 0x3f, 0, digital_fine_tlv),
1077 
1078 	SOC_DOUBLE_R_TLV("DAC1 Digital Coarse Playback Volume",
1079 		TWL4030_REG_ARXL1PGA, TWL4030_REG_ARXR1PGA,
1080 		6, 0x2, 0, digital_coarse_tlv),
1081 	SOC_DOUBLE_R_TLV("DAC2 Digital Coarse Playback Volume",
1082 		TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA,
1083 		6, 0x2, 0, digital_coarse_tlv),
1084 
1085 	SOC_DOUBLE_R_TLV("DAC1 Analog Playback Volume",
1086 		TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1087 		3, 0x12, 1, analog_tlv),
1088 	SOC_DOUBLE_R_TLV("DAC2 Analog Playback Volume",
1089 		TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1090 		3, 0x12, 1, analog_tlv),
1091 	SOC_DOUBLE_R("DAC1 Analog Playback Switch",
1092 		TWL4030_REG_ARXL1_APGA_CTL, TWL4030_REG_ARXR1_APGA_CTL,
1093 		1, 1, 0),
1094 	SOC_DOUBLE_R("DAC2 Analog Playback Switch",
1095 		TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1096 		1, 1, 0),
1097 
1098 	/* Common voice downlink gain controls */
1099 	SOC_SINGLE_TLV("DAC Voice Digital Downlink Volume",
1100 		TWL4030_REG_VRXPGA, 0, 0x31, 0, digital_voice_downlink_tlv),
1101 
1102 	SOC_SINGLE_TLV("DAC Voice Analog Downlink Volume",
1103 		TWL4030_REG_VDL_APGA_CTL, 3, 0x12, 1, analog_tlv),
1104 
1105 	SOC_SINGLE("DAC Voice Analog Downlink Switch",
1106 		TWL4030_REG_VDL_APGA_CTL, 1, 1, 0),
1107 
1108 	/* Separate output gain controls */
1109 	SOC_DOUBLE_R_EXT_TLV("PreDriv Playback Volume",
1110 		TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
1111 		4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1112 		snd_soc_put_volsw_r2_twl4030, output_tvl),
1113 
1114 	SOC_DOUBLE_EXT_TLV("Headset Playback Volume",
1115 		TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, snd_soc_get_volsw_twl4030,
1116 		snd_soc_put_volsw_twl4030, output_tvl),
1117 
1118 	SOC_DOUBLE_R_EXT_TLV("Carkit Playback Volume",
1119 		TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL,
1120 		4, 3, 0, snd_soc_get_volsw_r2_twl4030,
1121 		snd_soc_put_volsw_r2_twl4030, output_tvl),
1122 
1123 	SOC_SINGLE_EXT_TLV("Earpiece Playback Volume",
1124 		TWL4030_REG_EAR_CTL, 4, 3, 0, snd_soc_get_volsw_twl4030,
1125 		snd_soc_put_volsw_twl4030, output_ear_tvl),
1126 
1127 	/* Common capture gain controls */
1128 	SOC_DOUBLE_R_TLV("TX1 Digital Capture Volume",
1129 		TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,
1130 		0, 0x1f, 0, digital_capture_tlv),
1131 	SOC_DOUBLE_R_TLV("TX2 Digital Capture Volume",
1132 		TWL4030_REG_AVTXL2PGA, TWL4030_REG_AVTXR2PGA,
1133 		0, 0x1f, 0, digital_capture_tlv),
1134 
1135 	SOC_DOUBLE_TLV("Analog Capture Volume", TWL4030_REG_ANAMIC_GAIN,
1136 		0, 3, 5, 0, input_gain_tlv),
1137 
1138 	SOC_ENUM("AVADC Clock Priority", twl4030_avadc_clk_priority_enum),
1139 
1140 	SOC_ENUM("HS ramp delay", twl4030_rampdelay_enum),
1141 
1142 	SOC_ENUM("Vibra H-bridge mode", twl4030_vibradirmode_enum),
1143 	SOC_ENUM("Vibra H-bridge direction", twl4030_vibradir_enum),
1144 
1145 	SOC_ENUM("Digimic LR Swap", twl4030_digimicswap_enum),
1146 };
1147 
1148 static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
1149 	/* Left channel inputs */
1150 	SND_SOC_DAPM_INPUT("MAINMIC"),
1151 	SND_SOC_DAPM_INPUT("HSMIC"),
1152 	SND_SOC_DAPM_INPUT("AUXL"),
1153 	SND_SOC_DAPM_INPUT("CARKITMIC"),
1154 	/* Right channel inputs */
1155 	SND_SOC_DAPM_INPUT("SUBMIC"),
1156 	SND_SOC_DAPM_INPUT("AUXR"),
1157 	/* Digital microphones (Stereo) */
1158 	SND_SOC_DAPM_INPUT("DIGIMIC0"),
1159 	SND_SOC_DAPM_INPUT("DIGIMIC1"),
1160 
1161 	/* Outputs */
1162 	SND_SOC_DAPM_OUTPUT("EARPIECE"),
1163 	SND_SOC_DAPM_OUTPUT("PREDRIVEL"),
1164 	SND_SOC_DAPM_OUTPUT("PREDRIVER"),
1165 	SND_SOC_DAPM_OUTPUT("HSOL"),
1166 	SND_SOC_DAPM_OUTPUT("HSOR"),
1167 	SND_SOC_DAPM_OUTPUT("CARKITL"),
1168 	SND_SOC_DAPM_OUTPUT("CARKITR"),
1169 	SND_SOC_DAPM_OUTPUT("HFL"),
1170 	SND_SOC_DAPM_OUTPUT("HFR"),
1171 	SND_SOC_DAPM_OUTPUT("VIBRA"),
1172 
1173 	/* AIF and APLL clocks for running DAIs (including loopback) */
1174 	SND_SOC_DAPM_OUTPUT("Virtual HiFi OUT"),
1175 	SND_SOC_DAPM_INPUT("Virtual HiFi IN"),
1176 	SND_SOC_DAPM_OUTPUT("Virtual Voice OUT"),
1177 
1178 	/* DACs */
1179 	SND_SOC_DAPM_DAC("DAC Right1", NULL, SND_SOC_NOPM, 0, 0),
1180 	SND_SOC_DAPM_DAC("DAC Left1", NULL, SND_SOC_NOPM, 0, 0),
1181 	SND_SOC_DAPM_DAC("DAC Right2", NULL, SND_SOC_NOPM, 0, 0),
1182 	SND_SOC_DAPM_DAC("DAC Left2", NULL, SND_SOC_NOPM, 0, 0),
1183 	SND_SOC_DAPM_DAC("DAC Voice", NULL, SND_SOC_NOPM, 0, 0),
1184 
1185 	SND_SOC_DAPM_AIF_IN("VAIFIN", "Voice Playback", 0,
1186 			    TWL4030_REG_VOICE_IF, 6, 0),
1187 
1188 	/* Analog bypasses */
1189 	SND_SOC_DAPM_SWITCH("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1190 			&twl4030_dapm_abypassr1_control),
1191 	SND_SOC_DAPM_SWITCH("Left1 Analog Loopback", SND_SOC_NOPM, 0, 0,
1192 			&twl4030_dapm_abypassl1_control),
1193 	SND_SOC_DAPM_SWITCH("Right2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1194 			&twl4030_dapm_abypassr2_control),
1195 	SND_SOC_DAPM_SWITCH("Left2 Analog Loopback", SND_SOC_NOPM, 0, 0,
1196 			&twl4030_dapm_abypassl2_control),
1197 	SND_SOC_DAPM_SWITCH("Voice Analog Loopback", SND_SOC_NOPM, 0, 0,
1198 			&twl4030_dapm_abypassv_control),
1199 
1200 	/* Master analog loopback switch */
1201 	SND_SOC_DAPM_SUPPLY("FM Loop Enable", TWL4030_REG_MISC_SET_1, 5, 0,
1202 			    NULL, 0),
1203 
1204 	/* Digital bypasses */
1205 	SND_SOC_DAPM_SWITCH("Left Digital Loopback", SND_SOC_NOPM, 0, 0,
1206 			&twl4030_dapm_dbypassl_control),
1207 	SND_SOC_DAPM_SWITCH("Right Digital Loopback", SND_SOC_NOPM, 0, 0,
1208 			&twl4030_dapm_dbypassr_control),
1209 	SND_SOC_DAPM_SWITCH("Voice Digital Loopback", SND_SOC_NOPM, 0, 0,
1210 			&twl4030_dapm_dbypassv_control),
1211 
1212 	/* Digital mixers, power control for the physical DACs */
1213 	SND_SOC_DAPM_MIXER("Digital R1 Playback Mixer",
1214 			TWL4030_REG_AVDAC_CTL, 0, 0, NULL, 0),
1215 	SND_SOC_DAPM_MIXER("Digital L1 Playback Mixer",
1216 			TWL4030_REG_AVDAC_CTL, 1, 0, NULL, 0),
1217 	SND_SOC_DAPM_MIXER("Digital R2 Playback Mixer",
1218 			TWL4030_REG_AVDAC_CTL, 2, 0, NULL, 0),
1219 	SND_SOC_DAPM_MIXER("Digital L2 Playback Mixer",
1220 			TWL4030_REG_AVDAC_CTL, 3, 0, NULL, 0),
1221 	SND_SOC_DAPM_MIXER("Digital Voice Playback Mixer",
1222 			TWL4030_REG_AVDAC_CTL, 4, 0, NULL, 0),
1223 
1224 	/* Analog mixers, power control for the physical PGAs */
1225 	SND_SOC_DAPM_MIXER("Analog R1 Playback Mixer",
1226 			TWL4030_REG_ARXR1_APGA_CTL, 0, 0, NULL, 0),
1227 	SND_SOC_DAPM_MIXER("Analog L1 Playback Mixer",
1228 			TWL4030_REG_ARXL1_APGA_CTL, 0, 0, NULL, 0),
1229 	SND_SOC_DAPM_MIXER("Analog R2 Playback Mixer",
1230 			TWL4030_REG_ARXR2_APGA_CTL, 0, 0, NULL, 0),
1231 	SND_SOC_DAPM_MIXER("Analog L2 Playback Mixer",
1232 			TWL4030_REG_ARXL2_APGA_CTL, 0, 0, NULL, 0),
1233 	SND_SOC_DAPM_MIXER("Analog Voice Playback Mixer",
1234 			TWL4030_REG_VDL_APGA_CTL, 0, 0, NULL, 0),
1235 
1236 	SND_SOC_DAPM_SUPPLY("APLL Enable", SND_SOC_NOPM, 0, 0, apll_event,
1237 			    SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1238 
1239 	SND_SOC_DAPM_SUPPLY("AIF Enable", SND_SOC_NOPM, 0, 0, aif_event,
1240 			    SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
1241 
1242 	/* Output MIXER controls */
1243 	/* Earpiece */
1244 	SND_SOC_DAPM_MIXER("Earpiece Mixer", SND_SOC_NOPM, 0, 0,
1245 			&twl4030_dapm_earpiece_controls[0],
1246 			ARRAY_SIZE(twl4030_dapm_earpiece_controls)),
1247 	SND_SOC_DAPM_PGA_E("Earpiece PGA", SND_SOC_NOPM,
1248 			0, 0, NULL, 0, earpiecepga_event,
1249 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1250 	/* PreDrivL/R */
1251 	SND_SOC_DAPM_MIXER("PredriveL Mixer", SND_SOC_NOPM, 0, 0,
1252 			&twl4030_dapm_predrivel_controls[0],
1253 			ARRAY_SIZE(twl4030_dapm_predrivel_controls)),
1254 	SND_SOC_DAPM_PGA_E("PredriveL PGA", SND_SOC_NOPM,
1255 			0, 0, NULL, 0, predrivelpga_event,
1256 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1257 	SND_SOC_DAPM_MIXER("PredriveR Mixer", SND_SOC_NOPM, 0, 0,
1258 			&twl4030_dapm_predriver_controls[0],
1259 			ARRAY_SIZE(twl4030_dapm_predriver_controls)),
1260 	SND_SOC_DAPM_PGA_E("PredriveR PGA", SND_SOC_NOPM,
1261 			0, 0, NULL, 0, predriverpga_event,
1262 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1263 	/* HeadsetL/R */
1264 	SND_SOC_DAPM_MIXER("HeadsetL Mixer", SND_SOC_NOPM, 0, 0,
1265 			&twl4030_dapm_hsol_controls[0],
1266 			ARRAY_SIZE(twl4030_dapm_hsol_controls)),
1267 	SND_SOC_DAPM_PGA_E("HeadsetL PGA", SND_SOC_NOPM,
1268 			0, 0, NULL, 0, headsetlpga_event,
1269 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1270 	SND_SOC_DAPM_MIXER("HeadsetR Mixer", SND_SOC_NOPM, 0, 0,
1271 			&twl4030_dapm_hsor_controls[0],
1272 			ARRAY_SIZE(twl4030_dapm_hsor_controls)),
1273 	SND_SOC_DAPM_PGA_E("HeadsetR PGA", SND_SOC_NOPM,
1274 			0, 0, NULL, 0, headsetrpga_event,
1275 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1276 	/* CarkitL/R */
1277 	SND_SOC_DAPM_MIXER("CarkitL Mixer", SND_SOC_NOPM, 0, 0,
1278 			&twl4030_dapm_carkitl_controls[0],
1279 			ARRAY_SIZE(twl4030_dapm_carkitl_controls)),
1280 	SND_SOC_DAPM_PGA_E("CarkitL PGA", SND_SOC_NOPM,
1281 			0, 0, NULL, 0, carkitlpga_event,
1282 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1283 	SND_SOC_DAPM_MIXER("CarkitR Mixer", SND_SOC_NOPM, 0, 0,
1284 			&twl4030_dapm_carkitr_controls[0],
1285 			ARRAY_SIZE(twl4030_dapm_carkitr_controls)),
1286 	SND_SOC_DAPM_PGA_E("CarkitR PGA", SND_SOC_NOPM,
1287 			0, 0, NULL, 0, carkitrpga_event,
1288 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1289 
1290 	/* Output MUX controls */
1291 	/* HandsfreeL/R */
1292 	SND_SOC_DAPM_MUX("HandsfreeL Mux", SND_SOC_NOPM, 0, 0,
1293 		&twl4030_dapm_handsfreel_control),
1294 	SND_SOC_DAPM_SWITCH("HandsfreeL", SND_SOC_NOPM, 0, 0,
1295 			&twl4030_dapm_handsfreelmute_control),
1296 	SND_SOC_DAPM_PGA_E("HandsfreeL PGA", SND_SOC_NOPM,
1297 			0, 0, NULL, 0, handsfreelpga_event,
1298 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1299 	SND_SOC_DAPM_MUX("HandsfreeR Mux", SND_SOC_NOPM, 5, 0,
1300 		&twl4030_dapm_handsfreer_control),
1301 	SND_SOC_DAPM_SWITCH("HandsfreeR", SND_SOC_NOPM, 0, 0,
1302 			&twl4030_dapm_handsfreermute_control),
1303 	SND_SOC_DAPM_PGA_E("HandsfreeR PGA", SND_SOC_NOPM,
1304 			0, 0, NULL, 0, handsfreerpga_event,
1305 			SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
1306 	/* Vibra */
1307 	SND_SOC_DAPM_MUX_E("Vibra Mux", TWL4030_REG_VIBRA_CTL, 0, 0,
1308 			   &twl4030_dapm_vibra_control, vibramux_event,
1309 			   SND_SOC_DAPM_PRE_PMU),
1310 	SND_SOC_DAPM_MUX("Vibra Route", SND_SOC_NOPM, 0, 0,
1311 		&twl4030_dapm_vibrapath_control),
1312 
1313 	/* Introducing four virtual ADC, since TWL4030 have four channel for
1314 	   capture */
1315 	SND_SOC_DAPM_ADC("ADC Virtual Left1", NULL, SND_SOC_NOPM, 0, 0),
1316 	SND_SOC_DAPM_ADC("ADC Virtual Right1", NULL, SND_SOC_NOPM, 0, 0),
1317 	SND_SOC_DAPM_ADC("ADC Virtual Left2", NULL, SND_SOC_NOPM, 0, 0),
1318 	SND_SOC_DAPM_ADC("ADC Virtual Right2", NULL, SND_SOC_NOPM, 0, 0),
1319 
1320 	SND_SOC_DAPM_AIF_OUT("VAIFOUT", "Voice Capture", 0,
1321 			     TWL4030_REG_VOICE_IF, 5, 0),
1322 
1323 	/* Analog/Digital mic path selection.
1324 	   TX1 Left/Right: either analog Left/Right or Digimic0
1325 	   TX2 Left/Right: either analog Left/Right or Digimic1 */
1326 	SND_SOC_DAPM_MUX("TX1 Capture Route", SND_SOC_NOPM, 0, 0,
1327 		&twl4030_dapm_micpathtx1_control),
1328 	SND_SOC_DAPM_MUX("TX2 Capture Route", SND_SOC_NOPM, 0, 0,
1329 		&twl4030_dapm_micpathtx2_control),
1330 
1331 	/* Analog input mixers for the capture amplifiers */
1332 	SND_SOC_DAPM_MIXER("Analog Left",
1333 		TWL4030_REG_ANAMICL, 4, 0,
1334 		&twl4030_dapm_analoglmic_controls[0],
1335 		ARRAY_SIZE(twl4030_dapm_analoglmic_controls)),
1336 	SND_SOC_DAPM_MIXER("Analog Right",
1337 		TWL4030_REG_ANAMICR, 4, 0,
1338 		&twl4030_dapm_analogrmic_controls[0],
1339 		ARRAY_SIZE(twl4030_dapm_analogrmic_controls)),
1340 
1341 	SND_SOC_DAPM_PGA("ADC Physical Left",
1342 		TWL4030_REG_AVADC_CTL, 3, 0, NULL, 0),
1343 	SND_SOC_DAPM_PGA("ADC Physical Right",
1344 		TWL4030_REG_AVADC_CTL, 1, 0, NULL, 0),
1345 
1346 	SND_SOC_DAPM_PGA_E("Digimic0 Enable",
1347 		TWL4030_REG_ADCMICSEL, 1, 0, NULL, 0,
1348 		digimic_event, SND_SOC_DAPM_POST_PMU),
1349 	SND_SOC_DAPM_PGA_E("Digimic1 Enable",
1350 		TWL4030_REG_ADCMICSEL, 3, 0, NULL, 0,
1351 		digimic_event, SND_SOC_DAPM_POST_PMU),
1352 
1353 	SND_SOC_DAPM_SUPPLY("micbias1 select", TWL4030_REG_MICBIAS_CTL, 5, 0,
1354 			    NULL, 0),
1355 	SND_SOC_DAPM_SUPPLY("micbias2 select", TWL4030_REG_MICBIAS_CTL, 6, 0,
1356 			    NULL, 0),
1357 
1358 	/* Microphone bias */
1359 	SND_SOC_DAPM_SUPPLY("Mic Bias 1",
1360 			    TWL4030_REG_MICBIAS_CTL, 0, 0, NULL, 0),
1361 	SND_SOC_DAPM_SUPPLY("Mic Bias 2",
1362 			    TWL4030_REG_MICBIAS_CTL, 1, 0, NULL, 0),
1363 	SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
1364 			    TWL4030_REG_MICBIAS_CTL, 2, 0, NULL, 0),
1365 
1366 	SND_SOC_DAPM_SUPPLY("VIF Enable", TWL4030_REG_VOICE_IF, 0, 0, NULL, 0),
1367 };
1368 
1369 static const struct snd_soc_dapm_route intercon[] = {
1370 	/* Stream -> DAC mapping */
1371 	{"DAC Right1", NULL, "HiFi Playback"},
1372 	{"DAC Left1", NULL, "HiFi Playback"},
1373 	{"DAC Right2", NULL, "HiFi Playback"},
1374 	{"DAC Left2", NULL, "HiFi Playback"},
1375 	{"DAC Voice", NULL, "VAIFIN"},
1376 
1377 	/* ADC -> Stream mapping */
1378 	{"HiFi Capture", NULL, "ADC Virtual Left1"},
1379 	{"HiFi Capture", NULL, "ADC Virtual Right1"},
1380 	{"HiFi Capture", NULL, "ADC Virtual Left2"},
1381 	{"HiFi Capture", NULL, "ADC Virtual Right2"},
1382 	{"VAIFOUT", NULL, "ADC Virtual Left2"},
1383 	{"VAIFOUT", NULL, "ADC Virtual Right2"},
1384 	{"VAIFOUT", NULL, "VIF Enable"},
1385 
1386 	{"Digital L1 Playback Mixer", NULL, "DAC Left1"},
1387 	{"Digital R1 Playback Mixer", NULL, "DAC Right1"},
1388 	{"Digital L2 Playback Mixer", NULL, "DAC Left2"},
1389 	{"Digital R2 Playback Mixer", NULL, "DAC Right2"},
1390 	{"Digital Voice Playback Mixer", NULL, "DAC Voice"},
1391 
1392 	/* Supply for the digital part (APLL) */
1393 	{"Digital Voice Playback Mixer", NULL, "APLL Enable"},
1394 
1395 	{"DAC Left1", NULL, "AIF Enable"},
1396 	{"DAC Right1", NULL, "AIF Enable"},
1397 	{"DAC Left2", NULL, "AIF Enable"},
1398 	{"DAC Right1", NULL, "AIF Enable"},
1399 	{"DAC Voice", NULL, "VIF Enable"},
1400 
1401 	{"Digital R2 Playback Mixer", NULL, "AIF Enable"},
1402 	{"Digital L2 Playback Mixer", NULL, "AIF Enable"},
1403 
1404 	{"Analog L1 Playback Mixer", NULL, "Digital L1 Playback Mixer"},
1405 	{"Analog R1 Playback Mixer", NULL, "Digital R1 Playback Mixer"},
1406 	{"Analog L2 Playback Mixer", NULL, "Digital L2 Playback Mixer"},
1407 	{"Analog R2 Playback Mixer", NULL, "Digital R2 Playback Mixer"},
1408 	{"Analog Voice Playback Mixer", NULL, "Digital Voice Playback Mixer"},
1409 
1410 	/* Internal playback routings */
1411 	/* Earpiece */
1412 	{"Earpiece Mixer", "Voice", "Analog Voice Playback Mixer"},
1413 	{"Earpiece Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1414 	{"Earpiece Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1415 	{"Earpiece Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1416 	{"Earpiece PGA", NULL, "Earpiece Mixer"},
1417 	/* PreDrivL */
1418 	{"PredriveL Mixer", "Voice", "Analog Voice Playback Mixer"},
1419 	{"PredriveL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1420 	{"PredriveL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1421 	{"PredriveL Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1422 	{"PredriveL PGA", NULL, "PredriveL Mixer"},
1423 	/* PreDrivR */
1424 	{"PredriveR Mixer", "Voice", "Analog Voice Playback Mixer"},
1425 	{"PredriveR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1426 	{"PredriveR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1427 	{"PredriveR Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1428 	{"PredriveR PGA", NULL, "PredriveR Mixer"},
1429 	/* HeadsetL */
1430 	{"HeadsetL Mixer", "Voice", "Analog Voice Playback Mixer"},
1431 	{"HeadsetL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1432 	{"HeadsetL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1433 	{"HeadsetL PGA", NULL, "HeadsetL Mixer"},
1434 	/* HeadsetR */
1435 	{"HeadsetR Mixer", "Voice", "Analog Voice Playback Mixer"},
1436 	{"HeadsetR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1437 	{"HeadsetR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1438 	{"HeadsetR PGA", NULL, "HeadsetR Mixer"},
1439 	/* CarkitL */
1440 	{"CarkitL Mixer", "Voice", "Analog Voice Playback Mixer"},
1441 	{"CarkitL Mixer", "AudioL1", "Analog L1 Playback Mixer"},
1442 	{"CarkitL Mixer", "AudioL2", "Analog L2 Playback Mixer"},
1443 	{"CarkitL PGA", NULL, "CarkitL Mixer"},
1444 	/* CarkitR */
1445 	{"CarkitR Mixer", "Voice", "Analog Voice Playback Mixer"},
1446 	{"CarkitR Mixer", "AudioR1", "Analog R1 Playback Mixer"},
1447 	{"CarkitR Mixer", "AudioR2", "Analog R2 Playback Mixer"},
1448 	{"CarkitR PGA", NULL, "CarkitR Mixer"},
1449 	/* HandsfreeL */
1450 	{"HandsfreeL Mux", "Voice", "Analog Voice Playback Mixer"},
1451 	{"HandsfreeL Mux", "AudioL1", "Analog L1 Playback Mixer"},
1452 	{"HandsfreeL Mux", "AudioL2", "Analog L2 Playback Mixer"},
1453 	{"HandsfreeL Mux", "AudioR2", "Analog R2 Playback Mixer"},
1454 	{"HandsfreeL", "Switch", "HandsfreeL Mux"},
1455 	{"HandsfreeL PGA", NULL, "HandsfreeL"},
1456 	/* HandsfreeR */
1457 	{"HandsfreeR Mux", "Voice", "Analog Voice Playback Mixer"},
1458 	{"HandsfreeR Mux", "AudioR1", "Analog R1 Playback Mixer"},
1459 	{"HandsfreeR Mux", "AudioR2", "Analog R2 Playback Mixer"},
1460 	{"HandsfreeR Mux", "AudioL2", "Analog L2 Playback Mixer"},
1461 	{"HandsfreeR", "Switch", "HandsfreeR Mux"},
1462 	{"HandsfreeR PGA", NULL, "HandsfreeR"},
1463 	/* Vibra */
1464 	{"Vibra Mux", "AudioL1", "DAC Left1"},
1465 	{"Vibra Mux", "AudioR1", "DAC Right1"},
1466 	{"Vibra Mux", "AudioL2", "DAC Left2"},
1467 	{"Vibra Mux", "AudioR2", "DAC Right2"},
1468 
1469 	/* outputs */
1470 	/* Must be always connected (for AIF and APLL) */
1471 	{"Virtual HiFi OUT", NULL, "DAC Left1"},
1472 	{"Virtual HiFi OUT", NULL, "DAC Right1"},
1473 	{"Virtual HiFi OUT", NULL, "DAC Left2"},
1474 	{"Virtual HiFi OUT", NULL, "DAC Right2"},
1475 	/* Must be always connected (for APLL) */
1476 	{"Virtual Voice OUT", NULL, "Digital Voice Playback Mixer"},
1477 	/* Physical outputs */
1478 	{"EARPIECE", NULL, "Earpiece PGA"},
1479 	{"PREDRIVEL", NULL, "PredriveL PGA"},
1480 	{"PREDRIVER", NULL, "PredriveR PGA"},
1481 	{"HSOL", NULL, "HeadsetL PGA"},
1482 	{"HSOR", NULL, "HeadsetR PGA"},
1483 	{"CARKITL", NULL, "CarkitL PGA"},
1484 	{"CARKITR", NULL, "CarkitR PGA"},
1485 	{"HFL", NULL, "HandsfreeL PGA"},
1486 	{"HFR", NULL, "HandsfreeR PGA"},
1487 	{"Vibra Route", "Audio", "Vibra Mux"},
1488 	{"VIBRA", NULL, "Vibra Route"},
1489 
1490 	/* Capture path */
1491 	/* Must be always connected (for AIF and APLL) */
1492 	{"ADC Virtual Left1", NULL, "Virtual HiFi IN"},
1493 	{"ADC Virtual Right1", NULL, "Virtual HiFi IN"},
1494 	{"ADC Virtual Left2", NULL, "Virtual HiFi IN"},
1495 	{"ADC Virtual Right2", NULL, "Virtual HiFi IN"},
1496 	/* Physical inputs */
1497 	{"Analog Left", "Main Mic Capture Switch", "MAINMIC"},
1498 	{"Analog Left", "Headset Mic Capture Switch", "HSMIC"},
1499 	{"Analog Left", "AUXL Capture Switch", "AUXL"},
1500 	{"Analog Left", "Carkit Mic Capture Switch", "CARKITMIC"},
1501 
1502 	{"Analog Right", "Sub Mic Capture Switch", "SUBMIC"},
1503 	{"Analog Right", "AUXR Capture Switch", "AUXR"},
1504 
1505 	{"ADC Physical Left", NULL, "Analog Left"},
1506 	{"ADC Physical Right", NULL, "Analog Right"},
1507 
1508 	{"Digimic0 Enable", NULL, "DIGIMIC0"},
1509 	{"Digimic1 Enable", NULL, "DIGIMIC1"},
1510 
1511 	{"DIGIMIC0", NULL, "micbias1 select"},
1512 	{"DIGIMIC1", NULL, "micbias2 select"},
1513 
1514 	/* TX1 Left capture path */
1515 	{"TX1 Capture Route", "Analog", "ADC Physical Left"},
1516 	{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1517 	/* TX1 Right capture path */
1518 	{"TX1 Capture Route", "Analog", "ADC Physical Right"},
1519 	{"TX1 Capture Route", "Digimic0", "Digimic0 Enable"},
1520 	/* TX2 Left capture path */
1521 	{"TX2 Capture Route", "Analog", "ADC Physical Left"},
1522 	{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1523 	/* TX2 Right capture path */
1524 	{"TX2 Capture Route", "Analog", "ADC Physical Right"},
1525 	{"TX2 Capture Route", "Digimic1", "Digimic1 Enable"},
1526 
1527 	{"ADC Virtual Left1", NULL, "TX1 Capture Route"},
1528 	{"ADC Virtual Right1", NULL, "TX1 Capture Route"},
1529 	{"ADC Virtual Left2", NULL, "TX2 Capture Route"},
1530 	{"ADC Virtual Right2", NULL, "TX2 Capture Route"},
1531 
1532 	{"ADC Virtual Left1", NULL, "AIF Enable"},
1533 	{"ADC Virtual Right1", NULL, "AIF Enable"},
1534 	{"ADC Virtual Left2", NULL, "AIF Enable"},
1535 	{"ADC Virtual Right2", NULL, "AIF Enable"},
1536 
1537 	/* Analog bypass routes */
1538 	{"Right1 Analog Loopback", "Switch", "Analog Right"},
1539 	{"Left1 Analog Loopback", "Switch", "Analog Left"},
1540 	{"Right2 Analog Loopback", "Switch", "Analog Right"},
1541 	{"Left2 Analog Loopback", "Switch", "Analog Left"},
1542 	{"Voice Analog Loopback", "Switch", "Analog Left"},
1543 
1544 	/* Supply for the Analog loopbacks */
1545 	{"Right1 Analog Loopback", NULL, "FM Loop Enable"},
1546 	{"Left1 Analog Loopback", NULL, "FM Loop Enable"},
1547 	{"Right2 Analog Loopback", NULL, "FM Loop Enable"},
1548 	{"Left2 Analog Loopback", NULL, "FM Loop Enable"},
1549 	{"Voice Analog Loopback", NULL, "FM Loop Enable"},
1550 
1551 	{"Analog R1 Playback Mixer", NULL, "Right1 Analog Loopback"},
1552 	{"Analog L1 Playback Mixer", NULL, "Left1 Analog Loopback"},
1553 	{"Analog R2 Playback Mixer", NULL, "Right2 Analog Loopback"},
1554 	{"Analog L2 Playback Mixer", NULL, "Left2 Analog Loopback"},
1555 	{"Analog Voice Playback Mixer", NULL, "Voice Analog Loopback"},
1556 
1557 	/* Digital bypass routes */
1558 	{"Right Digital Loopback", "Volume", "TX1 Capture Route"},
1559 	{"Left Digital Loopback", "Volume", "TX1 Capture Route"},
1560 	{"Voice Digital Loopback", "Volume", "TX2 Capture Route"},
1561 
1562 	{"Digital R2 Playback Mixer", NULL, "Right Digital Loopback"},
1563 	{"Digital L2 Playback Mixer", NULL, "Left Digital Loopback"},
1564 	{"Digital Voice Playback Mixer", NULL, "Voice Digital Loopback"},
1565 
1566 };
1567 
1568 static int twl4030_set_bias_level(struct snd_soc_component *component,
1569 				  enum snd_soc_bias_level level)
1570 {
1571 	switch (level) {
1572 	case SND_SOC_BIAS_ON:
1573 		break;
1574 	case SND_SOC_BIAS_PREPARE:
1575 		break;
1576 	case SND_SOC_BIAS_STANDBY:
1577 		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
1578 			twl4030_codec_enable(component, 1);
1579 		break;
1580 	case SND_SOC_BIAS_OFF:
1581 		twl4030_codec_enable(component, 0);
1582 		break;
1583 	}
1584 
1585 	return 0;
1586 }
1587 
1588 static void twl4030_constraints(struct twl4030_priv *twl4030,
1589 				struct snd_pcm_substream *mst_substream)
1590 {
1591 	struct snd_pcm_substream *slv_substream;
1592 
1593 	/* Pick the stream, which need to be constrained */
1594 	if (mst_substream == twl4030->master_substream)
1595 		slv_substream = twl4030->slave_substream;
1596 	else if (mst_substream == twl4030->slave_substream)
1597 		slv_substream = twl4030->master_substream;
1598 	else /* This should not happen.. */
1599 		return;
1600 
1601 	/* Set the constraints according to the already configured stream */
1602 	snd_pcm_hw_constraint_single(slv_substream->runtime,
1603 				SNDRV_PCM_HW_PARAM_RATE,
1604 				twl4030->rate);
1605 
1606 	snd_pcm_hw_constraint_single(slv_substream->runtime,
1607 				SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
1608 				twl4030->sample_bits);
1609 
1610 	snd_pcm_hw_constraint_single(slv_substream->runtime,
1611 				SNDRV_PCM_HW_PARAM_CHANNELS,
1612 				twl4030->channels);
1613 }
1614 
1615 /* In case of 4 channel mode, the RX1 L/R for playback and the TX2 L/R for
1616  * capture has to be enabled/disabled. */
1617 static void twl4030_tdm_enable(struct snd_soc_component *component, int direction,
1618 			       int enable)
1619 {
1620 	u8 reg, mask;
1621 
1622 	reg = twl4030_read(component, TWL4030_REG_OPTION);
1623 
1624 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1625 		mask = TWL4030_ARXL1_VRX_EN | TWL4030_ARXR1_EN;
1626 	else
1627 		mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1628 
1629 	if (enable)
1630 		reg |= mask;
1631 	else
1632 		reg &= ~mask;
1633 
1634 	twl4030_write(component, TWL4030_REG_OPTION, reg);
1635 }
1636 
1637 static int twl4030_startup(struct snd_pcm_substream *substream,
1638 			   struct snd_soc_dai *dai)
1639 {
1640 	struct snd_soc_component *component = dai->component;
1641 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1642 
1643 	if (twl4030->master_substream) {
1644 		twl4030->slave_substream = substream;
1645 		/* The DAI has one configuration for playback and capture, so
1646 		 * if the DAI has been already configured then constrain this
1647 		 * substream to match it. */
1648 		if (twl4030->configured)
1649 			twl4030_constraints(twl4030, twl4030->master_substream);
1650 	} else {
1651 		if (!(twl4030_read(component, TWL4030_REG_CODEC_MODE) &
1652 			TWL4030_OPTION_1)) {
1653 			/* In option2 4 channel is not supported, set the
1654 			 * constraint for the first stream for channels, the
1655 			 * second stream will 'inherit' this cosntraint */
1656 			snd_pcm_hw_constraint_single(substream->runtime,
1657 						     SNDRV_PCM_HW_PARAM_CHANNELS,
1658 						     2);
1659 		}
1660 		twl4030->master_substream = substream;
1661 	}
1662 
1663 	return 0;
1664 }
1665 
1666 static void twl4030_shutdown(struct snd_pcm_substream *substream,
1667 			     struct snd_soc_dai *dai)
1668 {
1669 	struct snd_soc_component *component = dai->component;
1670 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1671 
1672 	if (twl4030->master_substream == substream)
1673 		twl4030->master_substream = twl4030->slave_substream;
1674 
1675 	twl4030->slave_substream = NULL;
1676 
1677 	/* If all streams are closed, or the remaining stream has not yet
1678 	 * been configured than set the DAI as not configured. */
1679 	if (!twl4030->master_substream)
1680 		twl4030->configured = 0;
1681 	 else if (!twl4030->master_substream->runtime->channels)
1682 		twl4030->configured = 0;
1683 
1684 	 /* If the closing substream had 4 channel, do the necessary cleanup */
1685 	if (substream->runtime->channels == 4)
1686 		twl4030_tdm_enable(component, substream->stream, 0);
1687 }
1688 
1689 static int twl4030_hw_params(struct snd_pcm_substream *substream,
1690 			     struct snd_pcm_hw_params *params,
1691 			     struct snd_soc_dai *dai)
1692 {
1693 	struct snd_soc_component *component = dai->component;
1694 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1695 	u8 mode, old_mode, format, old_format;
1696 
1697 	 /* If the substream has 4 channel, do the necessary setup */
1698 	if (params_channels(params) == 4) {
1699 		format = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1700 		mode = twl4030_read(component, TWL4030_REG_CODEC_MODE);
1701 
1702 		/* Safety check: are we in the correct operating mode and
1703 		 * the interface is in TDM mode? */
1704 		if ((mode & TWL4030_OPTION_1) &&
1705 		    ((format & TWL4030_AIF_FORMAT) == TWL4030_AIF_FORMAT_TDM))
1706 			twl4030_tdm_enable(component, substream->stream, 1);
1707 		else
1708 			return -EINVAL;
1709 	}
1710 
1711 	if (twl4030->configured)
1712 		/* Ignoring hw_params for already configured DAI */
1713 		return 0;
1714 
1715 	/* bit rate */
1716 	old_mode = twl4030_read(component,
1717 				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1718 	mode = old_mode & ~TWL4030_APLL_RATE;
1719 
1720 	switch (params_rate(params)) {
1721 	case 8000:
1722 		mode |= TWL4030_APLL_RATE_8000;
1723 		break;
1724 	case 11025:
1725 		mode |= TWL4030_APLL_RATE_11025;
1726 		break;
1727 	case 12000:
1728 		mode |= TWL4030_APLL_RATE_12000;
1729 		break;
1730 	case 16000:
1731 		mode |= TWL4030_APLL_RATE_16000;
1732 		break;
1733 	case 22050:
1734 		mode |= TWL4030_APLL_RATE_22050;
1735 		break;
1736 	case 24000:
1737 		mode |= TWL4030_APLL_RATE_24000;
1738 		break;
1739 	case 32000:
1740 		mode |= TWL4030_APLL_RATE_32000;
1741 		break;
1742 	case 44100:
1743 		mode |= TWL4030_APLL_RATE_44100;
1744 		break;
1745 	case 48000:
1746 		mode |= TWL4030_APLL_RATE_48000;
1747 		break;
1748 	case 96000:
1749 		mode |= TWL4030_APLL_RATE_96000;
1750 		break;
1751 	default:
1752 		dev_err(component->dev, "%s: unknown rate %d\n", __func__,
1753 			params_rate(params));
1754 		return -EINVAL;
1755 	}
1756 
1757 	/* sample size */
1758 	old_format = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1759 	format = old_format;
1760 	format &= ~TWL4030_DATA_WIDTH;
1761 	switch (params_width(params)) {
1762 	case 16:
1763 		format |= TWL4030_DATA_WIDTH_16S_16W;
1764 		break;
1765 	case 32:
1766 		format |= TWL4030_DATA_WIDTH_32S_24W;
1767 		break;
1768 	default:
1769 		dev_err(component->dev, "%s: unsupported bits/sample %d\n",
1770 			__func__, params_width(params));
1771 		return -EINVAL;
1772 	}
1773 
1774 	if (format != old_format || mode != old_mode) {
1775 		if (twl4030->codec_powered) {
1776 			/*
1777 			 * If the codec is powered, than we need to toggle the
1778 			 * codec power.
1779 			 */
1780 			twl4030_codec_enable(component, 0);
1781 			twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
1782 			twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1783 			twl4030_codec_enable(component, 1);
1784 		} else {
1785 			twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
1786 			twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1787 		}
1788 	}
1789 
1790 	/* Store the important parameters for the DAI configuration and set
1791 	 * the DAI as configured */
1792 	twl4030->configured = 1;
1793 	twl4030->rate = params_rate(params);
1794 	twl4030->sample_bits = hw_param_interval(params,
1795 					SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
1796 	twl4030->channels = params_channels(params);
1797 
1798 	/* If both playback and capture streams are open, and one of them
1799 	 * is setting the hw parameters right now (since we are here), set
1800 	 * constraints to the other stream to match the current one. */
1801 	if (twl4030->slave_substream)
1802 		twl4030_constraints(twl4030, substream);
1803 
1804 	return 0;
1805 }
1806 
1807 static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id,
1808 				  unsigned int freq, int dir)
1809 {
1810 	struct snd_soc_component *component = codec_dai->component;
1811 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1812 
1813 	switch (freq) {
1814 	case 19200000:
1815 	case 26000000:
1816 	case 38400000:
1817 		break;
1818 	default:
1819 		dev_err(component->dev, "Unsupported HFCLKIN: %u\n", freq);
1820 		return -EINVAL;
1821 	}
1822 
1823 	if ((freq / 1000) != twl4030->sysclk) {
1824 		dev_err(component->dev,
1825 			"Mismatch in HFCLKIN: %u (configured: %u)\n",
1826 			freq, twl4030->sysclk * 1000);
1827 		return -EINVAL;
1828 	}
1829 
1830 	return 0;
1831 }
1832 
1833 static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
1834 {
1835 	struct snd_soc_component *component = codec_dai->component;
1836 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1837 	u8 old_format, format;
1838 
1839 	/* get format */
1840 	old_format = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1841 	format = old_format;
1842 
1843 	/* set master/slave audio interface */
1844 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1845 	case SND_SOC_DAIFMT_CBM_CFM:
1846 		format &= ~(TWL4030_AIF_SLAVE_EN);
1847 		format &= ~(TWL4030_CLK256FS_EN);
1848 		break;
1849 	case SND_SOC_DAIFMT_CBS_CFS:
1850 		format |= TWL4030_AIF_SLAVE_EN;
1851 		format |= TWL4030_CLK256FS_EN;
1852 		break;
1853 	default:
1854 		return -EINVAL;
1855 	}
1856 
1857 	/* interface format */
1858 	format &= ~TWL4030_AIF_FORMAT;
1859 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1860 	case SND_SOC_DAIFMT_I2S:
1861 		format |= TWL4030_AIF_FORMAT_CODEC;
1862 		break;
1863 	case SND_SOC_DAIFMT_DSP_A:
1864 		format |= TWL4030_AIF_FORMAT_TDM;
1865 		break;
1866 	default:
1867 		return -EINVAL;
1868 	}
1869 
1870 	if (format != old_format) {
1871 		if (twl4030->codec_powered) {
1872 			/*
1873 			 * If the codec is powered, than we need to toggle the
1874 			 * codec power.
1875 			 */
1876 			twl4030_codec_enable(component, 0);
1877 			twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1878 			twl4030_codec_enable(component, 1);
1879 		} else {
1880 			twl4030_write(component, TWL4030_REG_AUDIO_IF, format);
1881 		}
1882 	}
1883 
1884 	return 0;
1885 }
1886 
1887 static int twl4030_set_tristate(struct snd_soc_dai *dai, int tristate)
1888 {
1889 	struct snd_soc_component *component = dai->component;
1890 	u8 reg = twl4030_read(component, TWL4030_REG_AUDIO_IF);
1891 
1892 	if (tristate)
1893 		reg |= TWL4030_AIF_TRI_EN;
1894 	else
1895 		reg &= ~TWL4030_AIF_TRI_EN;
1896 
1897 	return twl4030_write(component, TWL4030_REG_AUDIO_IF, reg);
1898 }
1899 
1900 /* In case of voice mode, the RX1 L(VRX) for downlink and the TX2 L/R
1901  * (VTXL, VTXR) for uplink has to be enabled/disabled. */
1902 static void twl4030_voice_enable(struct snd_soc_component *component, int direction,
1903 				 int enable)
1904 {
1905 	u8 reg, mask;
1906 
1907 	reg = twl4030_read(component, TWL4030_REG_OPTION);
1908 
1909 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
1910 		mask = TWL4030_ARXL1_VRX_EN;
1911 	else
1912 		mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
1913 
1914 	if (enable)
1915 		reg |= mask;
1916 	else
1917 		reg &= ~mask;
1918 
1919 	twl4030_write(component, TWL4030_REG_OPTION, reg);
1920 }
1921 
1922 static int twl4030_voice_startup(struct snd_pcm_substream *substream,
1923 				 struct snd_soc_dai *dai)
1924 {
1925 	struct snd_soc_component *component = dai->component;
1926 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1927 	u8 mode;
1928 
1929 	/* If the system master clock is not 26MHz, the voice PCM interface is
1930 	 * not available.
1931 	 */
1932 	if (twl4030->sysclk != 26000) {
1933 		dev_err(component->dev,
1934 			"%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n",
1935 			__func__, twl4030->sysclk);
1936 		return -EINVAL;
1937 	}
1938 
1939 	/* If the codec mode is not option2, the voice PCM interface is not
1940 	 * available.
1941 	 */
1942 	mode = twl4030_read(component, TWL4030_REG_CODEC_MODE)
1943 		& TWL4030_OPT_MODE;
1944 
1945 	if (mode != TWL4030_OPTION_2) {
1946 		dev_err(component->dev, "%s: the codec mode is not option2\n",
1947 			__func__);
1948 		return -EINVAL;
1949 	}
1950 
1951 	return 0;
1952 }
1953 
1954 static void twl4030_voice_shutdown(struct snd_pcm_substream *substream,
1955 				   struct snd_soc_dai *dai)
1956 {
1957 	struct snd_soc_component *component = dai->component;
1958 
1959 	/* Enable voice digital filters */
1960 	twl4030_voice_enable(component, substream->stream, 0);
1961 }
1962 
1963 static int twl4030_voice_hw_params(struct snd_pcm_substream *substream,
1964 				   struct snd_pcm_hw_params *params,
1965 				   struct snd_soc_dai *dai)
1966 {
1967 	struct snd_soc_component *component = dai->component;
1968 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
1969 	u8 old_mode, mode;
1970 
1971 	/* Enable voice digital filters */
1972 	twl4030_voice_enable(component, substream->stream, 1);
1973 
1974 	/* bit rate */
1975 	old_mode = twl4030_read(component,
1976 				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
1977 	mode = old_mode;
1978 
1979 	switch (params_rate(params)) {
1980 	case 8000:
1981 		mode &= ~(TWL4030_SEL_16K);
1982 		break;
1983 	case 16000:
1984 		mode |= TWL4030_SEL_16K;
1985 		break;
1986 	default:
1987 		dev_err(component->dev, "%s: unknown rate %d\n", __func__,
1988 			params_rate(params));
1989 		return -EINVAL;
1990 	}
1991 
1992 	if (mode != old_mode) {
1993 		if (twl4030->codec_powered) {
1994 			/*
1995 			 * If the codec is powered, than we need to toggle the
1996 			 * codec power.
1997 			 */
1998 			twl4030_codec_enable(component, 0);
1999 			twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
2000 			twl4030_codec_enable(component, 1);
2001 		} else {
2002 			twl4030_write(component, TWL4030_REG_CODEC_MODE, mode);
2003 		}
2004 	}
2005 
2006 	return 0;
2007 }
2008 
2009 static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
2010 					int clk_id, unsigned int freq, int dir)
2011 {
2012 	struct snd_soc_component *component = codec_dai->component;
2013 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
2014 
2015 	if (freq != 26000000) {
2016 		dev_err(component->dev,
2017 			"%s: HFCLKIN is %u KHz, voice interface needs 26MHz\n",
2018 			__func__, freq / 1000);
2019 		return -EINVAL;
2020 	}
2021 	if ((freq / 1000) != twl4030->sysclk) {
2022 		dev_err(component->dev,
2023 			"Mismatch in HFCLKIN: %u (configured: %u)\n",
2024 			freq, twl4030->sysclk * 1000);
2025 		return -EINVAL;
2026 	}
2027 	return 0;
2028 }
2029 
2030 static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
2031 				     unsigned int fmt)
2032 {
2033 	struct snd_soc_component *component = codec_dai->component;
2034 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
2035 	u8 old_format, format;
2036 
2037 	/* get format */
2038 	old_format = twl4030_read(component, TWL4030_REG_VOICE_IF);
2039 	format = old_format;
2040 
2041 	/* set master/slave audio interface */
2042 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
2043 	case SND_SOC_DAIFMT_CBM_CFM:
2044 		format &= ~(TWL4030_VIF_SLAVE_EN);
2045 		break;
2046 	case SND_SOC_DAIFMT_CBS_CFS:
2047 		format |= TWL4030_VIF_SLAVE_EN;
2048 		break;
2049 	default:
2050 		return -EINVAL;
2051 	}
2052 
2053 	/* clock inversion */
2054 	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
2055 	case SND_SOC_DAIFMT_IB_NF:
2056 		format &= ~(TWL4030_VIF_FORMAT);
2057 		break;
2058 	case SND_SOC_DAIFMT_NB_IF:
2059 		format |= TWL4030_VIF_FORMAT;
2060 		break;
2061 	default:
2062 		return -EINVAL;
2063 	}
2064 
2065 	if (format != old_format) {
2066 		if (twl4030->codec_powered) {
2067 			/*
2068 			 * If the codec is powered, than we need to toggle the
2069 			 * codec power.
2070 			 */
2071 			twl4030_codec_enable(component, 0);
2072 			twl4030_write(component, TWL4030_REG_VOICE_IF, format);
2073 			twl4030_codec_enable(component, 1);
2074 		} else {
2075 			twl4030_write(component, TWL4030_REG_VOICE_IF, format);
2076 		}
2077 	}
2078 
2079 	return 0;
2080 }
2081 
2082 static int twl4030_voice_set_tristate(struct snd_soc_dai *dai, int tristate)
2083 {
2084 	struct snd_soc_component *component = dai->component;
2085 	u8 reg = twl4030_read(component, TWL4030_REG_VOICE_IF);
2086 
2087 	if (tristate)
2088 		reg |= TWL4030_VIF_TRI_EN;
2089 	else
2090 		reg &= ~TWL4030_VIF_TRI_EN;
2091 
2092 	return twl4030_write(component, TWL4030_REG_VOICE_IF, reg);
2093 }
2094 
2095 #define TWL4030_RATES	 (SNDRV_PCM_RATE_8000_48000)
2096 #define TWL4030_FORMATS	 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2097 
2098 static const struct snd_soc_dai_ops twl4030_dai_hifi_ops = {
2099 	.startup	= twl4030_startup,
2100 	.shutdown	= twl4030_shutdown,
2101 	.hw_params	= twl4030_hw_params,
2102 	.set_sysclk	= twl4030_set_dai_sysclk,
2103 	.set_fmt	= twl4030_set_dai_fmt,
2104 	.set_tristate	= twl4030_set_tristate,
2105 };
2106 
2107 static const struct snd_soc_dai_ops twl4030_dai_voice_ops = {
2108 	.startup	= twl4030_voice_startup,
2109 	.shutdown	= twl4030_voice_shutdown,
2110 	.hw_params	= twl4030_voice_hw_params,
2111 	.set_sysclk	= twl4030_voice_set_dai_sysclk,
2112 	.set_fmt	= twl4030_voice_set_dai_fmt,
2113 	.set_tristate	= twl4030_voice_set_tristate,
2114 };
2115 
2116 static struct snd_soc_dai_driver twl4030_dai[] = {
2117 {
2118 	.name = "twl4030-hifi",
2119 	.playback = {
2120 		.stream_name = "HiFi Playback",
2121 		.channels_min = 2,
2122 		.channels_max = 4,
2123 		.rates = TWL4030_RATES | SNDRV_PCM_RATE_96000,
2124 		.formats = TWL4030_FORMATS,
2125 		.sig_bits = 24,},
2126 	.capture = {
2127 		.stream_name = "HiFi Capture",
2128 		.channels_min = 2,
2129 		.channels_max = 4,
2130 		.rates = TWL4030_RATES,
2131 		.formats = TWL4030_FORMATS,
2132 		.sig_bits = 24,},
2133 	.ops = &twl4030_dai_hifi_ops,
2134 },
2135 {
2136 	.name = "twl4030-voice",
2137 	.playback = {
2138 		.stream_name = "Voice Playback",
2139 		.channels_min = 1,
2140 		.channels_max = 1,
2141 		.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2142 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
2143 	.capture = {
2144 		.stream_name = "Voice Capture",
2145 		.channels_min = 1,
2146 		.channels_max = 2,
2147 		.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
2148 		.formats = SNDRV_PCM_FMTBIT_S16_LE,},
2149 	.ops = &twl4030_dai_voice_ops,
2150 },
2151 };
2152 
2153 static int twl4030_soc_probe(struct snd_soc_component *component)
2154 {
2155 	struct twl4030_priv *twl4030;
2156 
2157 	twl4030 = devm_kzalloc(component->dev, sizeof(struct twl4030_priv),
2158 			       GFP_KERNEL);
2159 	if (!twl4030)
2160 		return -ENOMEM;
2161 	snd_soc_component_set_drvdata(component, twl4030);
2162 	/* Set the defaults, and power up the codec */
2163 	twl4030->sysclk = twl4030_audio_get_mclk() / 1000;
2164 
2165 	twl4030_init_chip(component);
2166 
2167 	return 0;
2168 }
2169 
2170 static void twl4030_soc_remove(struct snd_soc_component *component)
2171 {
2172 	struct twl4030_priv *twl4030 = snd_soc_component_get_drvdata(component);
2173 	struct twl4030_codec_data *pdata = twl4030->pdata;
2174 
2175 	if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio))
2176 		gpio_free(pdata->hs_extmute_gpio);
2177 }
2178 
2179 static const struct snd_soc_component_driver soc_component_dev_twl4030 = {
2180 	.probe			= twl4030_soc_probe,
2181 	.remove			= twl4030_soc_remove,
2182 	.read			= twl4030_read,
2183 	.write			= twl4030_write,
2184 	.set_bias_level		= twl4030_set_bias_level,
2185 	.controls		= twl4030_snd_controls,
2186 	.num_controls		= ARRAY_SIZE(twl4030_snd_controls),
2187 	.dapm_widgets		= twl4030_dapm_widgets,
2188 	.num_dapm_widgets	= ARRAY_SIZE(twl4030_dapm_widgets),
2189 	.dapm_routes		= intercon,
2190 	.num_dapm_routes	= ARRAY_SIZE(intercon),
2191 	.use_pmdown_time	= 1,
2192 	.endianness		= 1,
2193 	.non_legacy_dai_naming	= 1,
2194 };
2195 
2196 static int twl4030_codec_probe(struct platform_device *pdev)
2197 {
2198 	return devm_snd_soc_register_component(&pdev->dev,
2199 				      &soc_component_dev_twl4030,
2200 				      twl4030_dai, ARRAY_SIZE(twl4030_dai));
2201 }
2202 
2203 MODULE_ALIAS("platform:twl4030-codec");
2204 
2205 static struct platform_driver twl4030_codec_driver = {
2206 	.probe		= twl4030_codec_probe,
2207 	.driver		= {
2208 		.name	= "twl4030-codec",
2209 	},
2210 };
2211 
2212 module_platform_driver(twl4030_codec_driver);
2213 
2214 MODULE_DESCRIPTION("ASoC TWL4030 codec driver");
2215 MODULE_AUTHOR("Steve Sakoman");
2216 MODULE_LICENSE("GPL");
2217