xref: /openbmc/linux/sound/soc/codecs/tlv320aic23.c (revision 04f3d715)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * ALSA SoC TLV320AIC23 codec driver
4  *
5  * Author:      Arun KS, <arunks@mistralsolutions.com>
6  * Copyright:   (C) 2008 Mistral Solutions Pvt Ltd.,
7  *
8  * Based on sound/soc/codecs/wm8731.c by Richard Purdie
9  *
10  * Notes:
11  *  The AIC23 is a driver for a low power stereo audio
12  *  codec tlv320aic23
13  *
14  *  The machine layer should disable unsupported inputs/outputs by
15  *  snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
16  */
17 
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/init.h>
21 #include <linux/delay.h>
22 #include <linux/pm.h>
23 #include <linux/regmap.h>
24 #include <linux/slab.h>
25 #include <sound/core.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/tlv.h>
30 #include <sound/initval.h>
31 
32 #include "tlv320aic23.h"
33 
34 /*
35  * AIC23 register cache
36  */
37 static const struct reg_default tlv320aic23_reg[] = {
38 	{  0, 0x0097 },
39 	{  1, 0x0097 },
40 	{  2, 0x00F9 },
41 	{  3, 0x00F9 },
42 	{  4, 0x001A },
43 	{  5, 0x0004 },
44 	{  6, 0x0007 },
45 	{  7, 0x0001 },
46 	{  8, 0x0020 },
47 	{  9, 0x0000 },
48 };
49 
50 const struct regmap_config tlv320aic23_regmap = {
51 	.reg_bits = 7,
52 	.val_bits = 9,
53 
54 	.max_register = TLV320AIC23_RESET,
55 	.reg_defaults = tlv320aic23_reg,
56 	.num_reg_defaults = ARRAY_SIZE(tlv320aic23_reg),
57 	.cache_type = REGCACHE_RBTREE,
58 };
59 EXPORT_SYMBOL(tlv320aic23_regmap);
60 
61 static const char *rec_src_text[] = { "Line", "Mic" };
62 static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
63 
64 static SOC_ENUM_SINGLE_DECL(rec_src_enum,
65 			    TLV320AIC23_ANLG, 2, rec_src_text);
66 
67 static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
68 SOC_DAPM_ENUM("Input Select", rec_src_enum);
69 
70 static SOC_ENUM_SINGLE_DECL(tlv320aic23_deemph,
71 			    TLV320AIC23_DIGT, 1, deemph_text);
72 
73 static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
74 static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
75 static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
76 
snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)77 static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,
78 	struct snd_ctl_elem_value *ucontrol)
79 {
80 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
81 	u16 val, reg;
82 
83 	val = (ucontrol->value.integer.value[0] & 0x07);
84 
85 	/* linear conversion to userspace
86 	* 000	=	-6db
87 	* 001	=	-9db
88 	* 010	=	-12db
89 	* 011	=	-18db (Min)
90 	* 100	=	0db (Max)
91 	*/
92 	val = (val >= 4) ? 4  : (3 - val);
93 
94 	reg = snd_soc_component_read(component, TLV320AIC23_ANLG) & (~0x1C0);
95 	snd_soc_component_write(component, TLV320AIC23_ANLG, reg | (val << 6));
96 
97 	return 0;
98 }
99 
snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)100 static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,
101 	struct snd_ctl_elem_value *ucontrol)
102 {
103 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
104 	u16 val;
105 
106 	val = snd_soc_component_read(component, TLV320AIC23_ANLG) & (0x1C0);
107 	val = val >> 6;
108 	val = (val >= 4) ? 4  : (3 -  val);
109 	ucontrol->value.integer.value[0] = val;
110 	return 0;
111 
112 }
113 
114 static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
115 	SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
116 			 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
117 	SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
118 	SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
119 		     TLV320AIC23_RINVOL, 7, 1, 0),
120 	SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
121 			 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
122 	SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
123 	SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
124 	SOC_SINGLE_EXT_TLV("Sidetone Volume", TLV320AIC23_ANLG, 6, 4, 0,
125 			   snd_soc_tlv320aic23_get_volsw,
126 			   snd_soc_tlv320aic23_put_volsw, sidetone_vol_tlv),
127 	SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
128 };
129 
130 /* PGA Mixer controls for Line and Mic switch */
131 static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
132 	SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
133 	SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
134 	SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
135 };
136 
137 static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
138 	SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
139 	SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
140 	SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
141 			 &tlv320aic23_rec_src_mux_controls),
142 	SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
143 			   &tlv320aic23_output_mixer_controls[0],
144 			   ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
145 	SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
146 	SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
147 
148 	SND_SOC_DAPM_OUTPUT("LHPOUT"),
149 	SND_SOC_DAPM_OUTPUT("RHPOUT"),
150 	SND_SOC_DAPM_OUTPUT("LOUT"),
151 	SND_SOC_DAPM_OUTPUT("ROUT"),
152 
153 	SND_SOC_DAPM_INPUT("LLINEIN"),
154 	SND_SOC_DAPM_INPUT("RLINEIN"),
155 
156 	SND_SOC_DAPM_INPUT("MICIN"),
157 };
158 
159 static const struct snd_soc_dapm_route tlv320aic23_intercon[] = {
160 	/* Output Mixer */
161 	{"Output Mixer", "Line Bypass Switch", "Line Input"},
162 	{"Output Mixer", "Playback Switch", "DAC"},
163 	{"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
164 
165 	/* Outputs */
166 	{"RHPOUT", NULL, "Output Mixer"},
167 	{"LHPOUT", NULL, "Output Mixer"},
168 	{"LOUT", NULL, "Output Mixer"},
169 	{"ROUT", NULL, "Output Mixer"},
170 
171 	/* Inputs */
172 	{"Line Input", NULL, "LLINEIN"},
173 	{"Line Input", NULL, "RLINEIN"},
174 	{"Mic Input", NULL, "MICIN"},
175 
176 	/* input mux */
177 	{"Capture Source", "Line", "Line Input"},
178 	{"Capture Source", "Mic", "Mic Input"},
179 	{"ADC", NULL, "Capture Source"},
180 
181 };
182 
183 /* AIC23 driver data */
184 struct aic23 {
185 	struct regmap *regmap;
186 	int mclk;
187 	int requested_adc;
188 	int requested_dac;
189 };
190 
191 /*
192  * Common Crystals used
193  * 11.2896 Mhz /128 = *88.2k  /192 = 58.8k
194  * 12.0000 Mhz /125 = *96k    /136 = 88.235K
195  * 12.2880 Mhz /128 = *96k    /192 = 64k
196  * 16.9344 Mhz /128 = 132.3k /192 = *88.2k
197  * 18.4320 Mhz /128 = 144k   /192 = *96k
198  */
199 
200 /*
201  * Normal BOSR 0-256/2 = 128, 1-384/2 = 192
202  * USB BOSR 0-250/2 = 125, 1-272/2 = 136
203  */
204 static const int bosr_usb_divisor_table[] = {
205 	128, 125, 192, 136
206 };
207 #define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7))
208 #define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11)        | (1<<15))
209 static const unsigned short sr_valid_mask[] = {
210 	LOWER_GROUP|UPPER_GROUP,	/* Normal, bosr - 0*/
211 	LOWER_GROUP,			/* Usb, bosr - 0*/
212 	LOWER_GROUP|UPPER_GROUP,	/* Normal, bosr - 1*/
213 	UPPER_GROUP,			/* Usb, bosr - 1*/
214 };
215 /*
216  * Every divisor is a factor of 11*12
217  */
218 #define SR_MULT (11*12)
219 #define A(x) (SR_MULT/x)
220 static const unsigned char sr_adc_mult_table[] = {
221 	A(2), A(2), A(12), A(12),  0, 0, A(3), A(1),
222 	A(2), A(2), A(11), A(11),  0, 0, 0, A(1)
223 };
224 static const unsigned char sr_dac_mult_table[] = {
225 	A(2), A(12), A(2), A(12),  0, 0, A(3), A(1),
226 	A(2), A(11), A(2), A(11),  0, 0, 0, A(1)
227 };
228 
get_score(int adc,int adc_l,int adc_h,int need_adc,int dac,int dac_l,int dac_h,int need_dac)229 static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc,
230 		int dac, int dac_l, int dac_h, int need_dac)
231 {
232 	if ((adc >= adc_l) && (adc <= adc_h) &&
233 			(dac >= dac_l) && (dac <= dac_h)) {
234 		int diff_adc = need_adc - adc;
235 		int diff_dac = need_dac - dac;
236 		return abs(diff_adc) + abs(diff_dac);
237 	}
238 	return UINT_MAX;
239 }
240 
find_rate(int mclk,u32 need_adc,u32 need_dac)241 static int find_rate(int mclk, u32 need_adc, u32 need_dac)
242 {
243 	int i, j;
244 	int best_i = -1;
245 	int best_j = -1;
246 	int best_div = 0;
247 	unsigned best_score = UINT_MAX;
248 	int adc_l, adc_h, dac_l, dac_h;
249 
250 	need_adc *= SR_MULT;
251 	need_dac *= SR_MULT;
252 	/*
253 	 * rates given are +/- 1/32
254 	 */
255 	adc_l = need_adc - (need_adc >> 5);
256 	adc_h = need_adc + (need_adc >> 5);
257 	dac_l = need_dac - (need_dac >> 5);
258 	dac_h = need_dac + (need_dac >> 5);
259 	for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {
260 		int base = mclk / bosr_usb_divisor_table[i];
261 		int mask = sr_valid_mask[i];
262 		for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);
263 				j++, mask >>= 1) {
264 			int adc;
265 			int dac;
266 			int score;
267 			if ((mask & 1) == 0)
268 				continue;
269 			adc = base * sr_adc_mult_table[j];
270 			dac = base * sr_dac_mult_table[j];
271 			score = get_score(adc, adc_l, adc_h, need_adc,
272 					dac, dac_l, dac_h, need_dac);
273 			if (best_score > score) {
274 				best_score = score;
275 				best_i = i;
276 				best_j = j;
277 				best_div = 0;
278 			}
279 			score = get_score((adc >> 1), adc_l, adc_h, need_adc,
280 					(dac >> 1), dac_l, dac_h, need_dac);
281 			/* prefer to have a /2 */
282 			if ((score != UINT_MAX) && (best_score >= score)) {
283 				best_score = score;
284 				best_i = i;
285 				best_j = j;
286 				best_div = 1;
287 			}
288 		}
289 	}
290 	return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT);
291 }
292 
293 #ifdef DEBUG
get_current_sample_rates(struct snd_soc_component * component,int mclk,u32 * sample_rate_adc,u32 * sample_rate_dac)294 static void get_current_sample_rates(struct snd_soc_component *component, int mclk,
295 		u32 *sample_rate_adc, u32 *sample_rate_dac)
296 {
297 	int src = snd_soc_component_read(component, TLV320AIC23_SRATE);
298 	int sr = (src >> 2) & 0x0f;
299 	int val = (mclk / bosr_usb_divisor_table[src & 3]);
300 	int adc = (val * sr_adc_mult_table[sr]) / SR_MULT;
301 	int dac = (val * sr_dac_mult_table[sr]) / SR_MULT;
302 	if (src & TLV320AIC23_CLKIN_HALF) {
303 		adc >>= 1;
304 		dac >>= 1;
305 	}
306 	*sample_rate_adc = adc;
307 	*sample_rate_dac = dac;
308 }
309 #endif
310 
set_sample_rate_control(struct snd_soc_component * component,int mclk,u32 sample_rate_adc,u32 sample_rate_dac)311 static int set_sample_rate_control(struct snd_soc_component *component, int mclk,
312 		u32 sample_rate_adc, u32 sample_rate_dac)
313 {
314 	/* Search for the right sample rate */
315 	int data = find_rate(mclk, sample_rate_adc, sample_rate_dac);
316 	if (data < 0) {
317 		printk(KERN_ERR "%s:Invalid rate %u,%u requested\n",
318 				__func__, sample_rate_adc, sample_rate_dac);
319 		return -EINVAL;
320 	}
321 	snd_soc_component_write(component, TLV320AIC23_SRATE, data);
322 #ifdef DEBUG
323 	{
324 		u32 adc, dac;
325 		get_current_sample_rates(component, mclk, &adc, &dac);
326 		printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n",
327 			adc, dac, data);
328 	}
329 #endif
330 	return 0;
331 }
332 
tlv320aic23_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)333 static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
334 				 struct snd_pcm_hw_params *params,
335 				 struct snd_soc_dai *dai)
336 {
337 	struct snd_soc_component *component = dai->component;
338 	u16 iface_reg;
339 	int ret;
340 	struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
341 	u32 sample_rate_adc = aic23->requested_adc;
342 	u32 sample_rate_dac = aic23->requested_dac;
343 	u32 sample_rate = params_rate(params);
344 
345 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
346 		aic23->requested_dac = sample_rate_dac = sample_rate;
347 		if (!sample_rate_adc)
348 			sample_rate_adc = sample_rate;
349 	} else {
350 		aic23->requested_adc = sample_rate_adc = sample_rate;
351 		if (!sample_rate_dac)
352 			sample_rate_dac = sample_rate;
353 	}
354 	ret = set_sample_rate_control(component, aic23->mclk, sample_rate_adc,
355 			sample_rate_dac);
356 	if (ret < 0)
357 		return ret;
358 
359 	iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
360 
361 	switch (params_width(params)) {
362 	case 16:
363 		break;
364 	case 20:
365 		iface_reg |= (0x01 << 2);
366 		break;
367 	case 24:
368 		iface_reg |= (0x02 << 2);
369 		break;
370 	case 32:
371 		iface_reg |= (0x03 << 2);
372 		break;
373 	}
374 	snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);
375 
376 	return 0;
377 }
378 
tlv320aic23_pcm_prepare(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)379 static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
380 				   struct snd_soc_dai *dai)
381 {
382 	struct snd_soc_component *component = dai->component;
383 
384 	/* set active */
385 	snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0001);
386 
387 	return 0;
388 }
389 
tlv320aic23_shutdown(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)390 static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
391 				 struct snd_soc_dai *dai)
392 {
393 	struct snd_soc_component *component = dai->component;
394 	struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
395 
396 	/* deactivate */
397 	if (!snd_soc_component_active(component)) {
398 		udelay(50);
399 		snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);
400 	}
401 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
402 		aic23->requested_dac = 0;
403 	else
404 		aic23->requested_adc = 0;
405 }
406 
tlv320aic23_mute(struct snd_soc_dai * dai,int mute,int direction)407 static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute, int direction)
408 {
409 	struct snd_soc_component *component = dai->component;
410 	u16 reg;
411 
412 	reg = snd_soc_component_read(component, TLV320AIC23_DIGT);
413 	if (mute)
414 		reg |= TLV320AIC23_DACM_MUTE;
415 
416 	else
417 		reg &= ~TLV320AIC23_DACM_MUTE;
418 
419 	snd_soc_component_write(component, TLV320AIC23_DIGT, reg);
420 
421 	return 0;
422 }
423 
tlv320aic23_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)424 static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
425 				   unsigned int fmt)
426 {
427 	struct snd_soc_component *component = codec_dai->component;
428 	u16 iface_reg;
429 
430 	iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & (~0x03);
431 
432 	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
433 	case SND_SOC_DAIFMT_CBP_CFP:
434 		iface_reg |= TLV320AIC23_MS_MASTER;
435 		break;
436 	case SND_SOC_DAIFMT_CBC_CFC:
437 		iface_reg &= ~TLV320AIC23_MS_MASTER;
438 		break;
439 	default:
440 		return -EINVAL;
441 
442 	}
443 
444 	/* interface format */
445 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
446 	case SND_SOC_DAIFMT_I2S:
447 		iface_reg |= TLV320AIC23_FOR_I2S;
448 		break;
449 	case SND_SOC_DAIFMT_DSP_A:
450 		iface_reg |= TLV320AIC23_LRP_ON;
451 		fallthrough;
452 	case SND_SOC_DAIFMT_DSP_B:
453 		iface_reg |= TLV320AIC23_FOR_DSP;
454 		break;
455 	case SND_SOC_DAIFMT_RIGHT_J:
456 		break;
457 	case SND_SOC_DAIFMT_LEFT_J:
458 		iface_reg |= TLV320AIC23_FOR_LJUST;
459 		break;
460 	default:
461 		return -EINVAL;
462 
463 	}
464 
465 	snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);
466 
467 	return 0;
468 }
469 
tlv320aic23_set_dai_sysclk(struct snd_soc_dai * codec_dai,int clk_id,unsigned int freq,int dir)470 static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
471 				      int clk_id, unsigned int freq, int dir)
472 {
473 	struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai);
474 	aic23->mclk = freq;
475 	return 0;
476 }
477 
tlv320aic23_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)478 static int tlv320aic23_set_bias_level(struct snd_soc_component *component,
479 				      enum snd_soc_bias_level level)
480 {
481 	u16 reg = snd_soc_component_read(component, TLV320AIC23_PWR) & 0x17f;
482 
483 	switch (level) {
484 	case SND_SOC_BIAS_ON:
485 		/* vref/mid, osc on, dac unmute */
486 		reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \
487 			TLV320AIC23_DAC_OFF);
488 		snd_soc_component_write(component, TLV320AIC23_PWR, reg);
489 		break;
490 	case SND_SOC_BIAS_PREPARE:
491 		break;
492 	case SND_SOC_BIAS_STANDBY:
493 		/* everything off except vref/vmid, */
494 		snd_soc_component_write(component, TLV320AIC23_PWR,
495 			      reg | TLV320AIC23_CLK_OFF);
496 		break;
497 	case SND_SOC_BIAS_OFF:
498 		/* everything off, dac mute, inactive */
499 		snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);
500 		snd_soc_component_write(component, TLV320AIC23_PWR, 0x1ff);
501 		break;
502 	}
503 	return 0;
504 }
505 
506 #define AIC23_RATES	SNDRV_PCM_RATE_8000_96000
507 #define AIC23_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
508 			 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
509 
510 static const struct snd_soc_dai_ops tlv320aic23_dai_ops = {
511 	.prepare	= tlv320aic23_pcm_prepare,
512 	.hw_params	= tlv320aic23_hw_params,
513 	.shutdown	= tlv320aic23_shutdown,
514 	.mute_stream	= tlv320aic23_mute,
515 	.set_fmt	= tlv320aic23_set_dai_fmt,
516 	.set_sysclk	= tlv320aic23_set_dai_sysclk,
517 	.no_capture_mute = 1,
518 };
519 
520 static struct snd_soc_dai_driver tlv320aic23_dai = {
521 	.name = "tlv320aic23-hifi",
522 	.playback = {
523 		     .stream_name = "Playback",
524 		     .channels_min = 2,
525 		     .channels_max = 2,
526 		     .rates = AIC23_RATES,
527 		     .formats = AIC23_FORMATS,},
528 	.capture = {
529 		    .stream_name = "Capture",
530 		    .channels_min = 2,
531 		    .channels_max = 2,
532 		    .rates = AIC23_RATES,
533 		    .formats = AIC23_FORMATS,},
534 	.ops = &tlv320aic23_dai_ops,
535 };
536 
tlv320aic23_resume(struct snd_soc_component * component)537 static int tlv320aic23_resume(struct snd_soc_component *component)
538 {
539 	struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
540 	regcache_mark_dirty(aic23->regmap);
541 	regcache_sync(aic23->regmap);
542 
543 	return 0;
544 }
545 
tlv320aic23_component_probe(struct snd_soc_component * component)546 static int tlv320aic23_component_probe(struct snd_soc_component *component)
547 {
548 	/* Reset codec */
549 	snd_soc_component_write(component, TLV320AIC23_RESET, 0);
550 
551 	snd_soc_component_write(component, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
552 
553 	/* Unmute input */
554 	snd_soc_component_update_bits(component, TLV320AIC23_LINVOL,
555 			    TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
556 
557 	snd_soc_component_update_bits(component, TLV320AIC23_RINVOL,
558 			    TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
559 
560 	snd_soc_component_update_bits(component, TLV320AIC23_ANLG,
561 			    TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED,
562 			    0);
563 
564 	/* Default output volume */
565 	snd_soc_component_write(component, TLV320AIC23_LCHNVOL,
566 		      TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
567 	snd_soc_component_write(component, TLV320AIC23_RCHNVOL,
568 		      TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
569 
570 	snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x1);
571 
572 	return 0;
573 }
574 
575 static const struct snd_soc_component_driver soc_component_dev_tlv320aic23 = {
576 	.probe			= tlv320aic23_component_probe,
577 	.resume			= tlv320aic23_resume,
578 	.set_bias_level		= tlv320aic23_set_bias_level,
579 	.controls		= tlv320aic23_snd_controls,
580 	.num_controls		= ARRAY_SIZE(tlv320aic23_snd_controls),
581 	.dapm_widgets		= tlv320aic23_dapm_widgets,
582 	.num_dapm_widgets	= ARRAY_SIZE(tlv320aic23_dapm_widgets),
583 	.dapm_routes		= tlv320aic23_intercon,
584 	.num_dapm_routes	= ARRAY_SIZE(tlv320aic23_intercon),
585 	.suspend_bias_off	= 1,
586 	.idle_bias_on		= 1,
587 	.use_pmdown_time	= 1,
588 	.endianness		= 1,
589 };
590 
tlv320aic23_probe(struct device * dev,struct regmap * regmap)591 int tlv320aic23_probe(struct device *dev, struct regmap *regmap)
592 {
593 	struct aic23 *aic23;
594 
595 	if (IS_ERR(regmap))
596 		return PTR_ERR(regmap);
597 
598 	aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL);
599 	if (aic23 == NULL)
600 		return -ENOMEM;
601 
602 	aic23->regmap = regmap;
603 
604 	dev_set_drvdata(dev, aic23);
605 
606 	return devm_snd_soc_register_component(dev,
607 				      &soc_component_dev_tlv320aic23,
608 				      &tlv320aic23_dai, 1);
609 }
610 EXPORT_SYMBOL(tlv320aic23_probe);
611 
612 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
613 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
614 MODULE_LICENSE("GPL");
615