summaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/rt1019.c
blob: ceb8baa6a20d78f1d57e693c1ff168504495c3a1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
// SPDX-License-Identifier: GPL-2.0-only
//
// rt1019.c  --  RT1019 ALSA SoC audio amplifier driver
// Author: Jack Yu <jack.yu@realtek.com>
//
// Copyright(c) 2021 Realtek Semiconductor Corp.
//
//

#include <linux/acpi.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/regmap.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/firmware.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>

#include "rl6231.h"
#include "rt1019.h"

static const struct reg_default rt1019_reg[] = {
	{ 0x0000, 0x00 },
	{ 0x0011, 0x04 },
	{ 0x0013, 0x00 },
	{ 0x0019, 0x30 },
	{ 0x001b, 0x01 },
	{ 0x005c, 0x00 },
	{ 0x005e, 0x10 },
	{ 0x005f, 0xec },
	{ 0x0061, 0x10 },
	{ 0x0062, 0x19 },
	{ 0x0066, 0x08 },
	{ 0x0100, 0x80 },
	{ 0x0100, 0x51 },
	{ 0x0102, 0x23 },
	{ 0x0311, 0x00 },
	{ 0x0312, 0x3e },
	{ 0x0313, 0x86 },
	{ 0x0400, 0x03 },
	{ 0x0401, 0x02 },
	{ 0x0402, 0x01 },
	{ 0x0504, 0xff },
	{ 0x0505, 0x24 },
	{ 0x0b00, 0x50 },
	{ 0x0b01, 0xc3 },
};

static bool rt1019_volatile_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case RT1019_PWR_STRP_2:
	case RT1019_VER_ID:
	case RT1019_VEND_ID_1:
	case RT1019_VEND_ID_2:
	case RT1019_DEV_ID_1:
	case RT1019_DEV_ID_2:
		return true;

	default:
		return false;
	}
}

static bool rt1019_readable_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case RT1019_RESET:
	case RT1019_IDS_CTRL:
	case RT1019_ASEL_CTRL:
	case RT1019_PWR_STRP_2:
	case RT1019_BEEP_TONE:
	case RT1019_VER_ID:
	case RT1019_VEND_ID_1:
	case RT1019_VEND_ID_2:
	case RT1019_DEV_ID_1:
	case RT1019_DEV_ID_2:
	case RT1019_SDB_CTRL:
	case RT1019_CLK_TREE_1:
	case RT1019_CLK_TREE_2:
	case RT1019_CLK_TREE_3:
	case RT1019_PLL_1:
	case RT1019_PLL_2:
	case RT1019_PLL_3:
	case RT1019_TDM_1:
	case RT1019_TDM_2:
	case RT1019_TDM_3:
	case RT1019_DMIX_MONO_1:
	case RT1019_DMIX_MONO_2:
	case RT1019_BEEP_1:
	case RT1019_BEEP_2:
		return true;
	default:
		return false;
	}
}

static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -9525, 75, 0);

static const char * const rt1019_din_source_select[] = {
	"Left",
	"Right",
	"Left + Right average",
};

static SOC_ENUM_SINGLE_DECL(rt1019_mono_lr_sel, RT1019_IDS_CTRL, 0,
	rt1019_din_source_select);

static const struct snd_kcontrol_new rt1019_snd_controls[] = {
	SOC_SINGLE_TLV("DAC Playback Volume", RT1019_DMIX_MONO_1, 0,
		127, 0, dac_vol_tlv),
	SOC_ENUM("Mono LR Select", rt1019_mono_lr_sel),
};

static int r1019_dac_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		snd_soc_component_write(component, RT1019_SDB_CTRL, 0xb);
		break;
	case SND_SOC_DAPM_POST_PMD:
		snd_soc_component_write(component, RT1019_SDB_CTRL, 0xa);
		break;
	default:
		break;
	}

	return 0;
}

static const struct snd_soc_dapm_widget rt1019_dapm_widgets[] = {
	SND_SOC_DAPM_AIF_IN("AIFRX", "AIF Playback", 0, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0,
		r1019_dac_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
	SND_SOC_DAPM_OUTPUT("SPO"),
};

static const struct snd_soc_dapm_route rt1019_dapm_routes[] = {
	{ "DAC", NULL, "AIFRX" },
	{ "SPO", NULL, "DAC" },
};

static int rt1019_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
	struct snd_soc_component *component = dai->component;
	struct rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component);
	int pre_div, bclk_ms, frame_size;
	unsigned int val_len = 0, sys_div_da_filter = 0;
	unsigned int sys_dac_osr = 0, sys_fifo_clk = 0;
	unsigned int sys_clk_cal = 0, sys_asrc_in = 0;

	rt1019->lrck = params_rate(params);
	pre_div = rl6231_get_clk_info(rt1019->sysclk, rt1019->lrck);
	if (pre_div < 0) {
		dev_err(component->dev, "Unsupported clock setting\n");
		return -EINVAL;
	}

	frame_size = snd_soc_params_to_frame_size(params);
	if (frame_size < 0) {
		dev_err(component->dev, "Unsupported frame size: %d\n", frame_size);
		return -EINVAL;
	}

	bclk_ms = frame_size > 32;
	rt1019->bclk = rt1019->lrck * (32 << bclk_ms);

	dev_dbg(dai->dev, "bclk is %dHz and lrck is %dHz\n",
		rt1019->bclk, rt1019->lrck);
	dev_dbg(dai->dev, "bclk_ms is %d and pre_div is %d for iis %d\n",
				bclk_ms, pre_div, dai->id);

	switch (pre_div) {
	case 0:
		sys_div_da_filter = RT1019_SYS_DIV_DA_FIL_DIV1;
		sys_dac_osr = RT1019_SYS_DA_OSR_DIV1;
		sys_asrc_in = RT1019_ASRC_256FS_DIV1;
		sys_fifo_clk = RT1019_SEL_FIFO_DIV1;
		sys_clk_cal = RT1019_SEL_CLK_CAL_DIV1;
		break;
	case 1:
		sys_div_da_filter = RT1019_SYS_DIV_DA_FIL_DIV2;
		sys_dac_osr = RT1019_SYS_DA_OSR_DIV2;
		sys_asrc_in = RT1019_ASRC_256FS_DIV2;
		sys_fifo_clk = RT1019_SEL_FIFO_DIV2;
		sys_clk_cal = RT1019_SEL_CLK_CAL_DIV2;
		break;
	case 3:
		sys_div_da_filter = RT1019_SYS_DIV_DA_FIL_DIV4;
		sys_dac_osr = RT1019_SYS_DA_OSR_DIV4;
		sys_asrc_in = RT1019_ASRC_256FS_DIV4;
		sys_fifo_clk = RT1019_SEL_FIFO_DIV4;
		sys_clk_cal = RT1019_SEL_CLK_CAL_DIV4;
		break;
	default:
		return -EINVAL;
	}

	switch (params_width(params)) {
	case 16:
		break;
	case 20:
		val_len = RT1019_I2S_DL_20;
		break;
	case 24:
		val_len = RT1019_I2S_DL_24;
		break;
	case 32:
		val_len = RT1019_I2S_DL_32;
		break;
	case 8:
		val_len = RT1019_I2S_DL_8;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_component_update_bits(component, RT1019_TDM_2, RT1019_I2S_DL_MASK,
			val_len);
	snd_soc_component_update_bits(component, RT1019_CLK_TREE_1,
			RT1019_SEL_FIFO_MASK, sys_fifo_clk);
	snd_soc_component_update_bits(component, RT1019_CLK_TREE_2,
			RT1019_SYS_DIV_DA_FIL_MASK | RT1019_SYS_DA_OSR_MASK |
			RT1019_ASRC_256FS_MASK, sys_div_da_filter | sys_dac_osr |
			sys_asrc_in);
	snd_soc_component_update_bits(component, RT1019_CLK_TREE_3,
			RT1019_SEL_CLK_CAL_MASK, sys_clk_cal);

	return 0;
}

static int rt1019_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
	struct snd_soc_component *component = dai->component;
	unsigned int reg_val = 0, reg_val2 = 0;

	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF:
		break;
	case SND_SOC_DAIFMT_IB_NF:
		reg_val2 |= RT1019_TDM_BCLK_INV;
		break;
	default:
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		break;

	case SND_SOC_DAIFMT_LEFT_J:
		reg_val |= RT1019_I2S_DF_LEFT;
		break;

	case SND_SOC_DAIFMT_DSP_A:
		reg_val |= RT1019_I2S_DF_PCM_A_R;
		break;

	case SND_SOC_DAIFMT_DSP_B:
		reg_val |= RT1019_I2S_DF_PCM_B_R;
		break;

	default:
		return -EINVAL;
	}

	snd_soc_component_update_bits(component, RT1019_TDM_2,
		RT1019_I2S_DF_MASK, reg_val);
	snd_soc_component_update_bits(component, RT1019_TDM_1,
		RT1019_TDM_BCLK_MASK, reg_val2);

	return 0;
}

static int rt1019_set_dai_sysclk(struct snd_soc_dai *dai,
		int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_component *component = dai->component;
	struct rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component);
	unsigned int reg_val = 0;

	if (freq == rt1019->sysclk && clk_id == rt1019->sysclk_src)
		return 0;

	switch (clk_id) {
	case RT1019_SCLK_S_BCLK:
		reg_val |= RT1019_CLK_SYS_PRE_SEL_BCLK;
		break;

	case RT1019_SCLK_S_PLL:
		reg_val |= RT1019_CLK_SYS_PRE_SEL_PLL;
		break;

	default:
		dev_err(component->dev, "Invalid clock id (%d)\n", clk_id);
		return -EINVAL;
	}

	rt1019->sysclk = freq;
	rt1019->sysclk_src = clk_id;

	dev_dbg(dai->dev, "Sysclk is %dHz and clock id is %d\n", freq, clk_id);

	snd_soc_component_update_bits(component, RT1019_CLK_TREE_1,
		RT1019_CLK_SYS_PRE_SEL_MASK, reg_val);

	return 0;
}

static int rt1019_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source,
			unsigned int freq_in, unsigned int freq_out)
{
	struct snd_soc_component *component = dai->component;
	struct rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component);
	struct rl6231_pll_code pll_code;
	int ret;

	if (!freq_in || !freq_out) {
		dev_dbg(component->dev, "PLL disabled\n");
		rt1019->pll_in = 0;
		rt1019->pll_out = 0;
		return 0;
	}

	if (source == rt1019->pll_src && freq_in == rt1019->pll_in &&
		freq_out == rt1019->pll_out)
		return 0;

	switch (source) {
	case RT1019_PLL_S_BCLK:
		snd_soc_component_update_bits(component, RT1019_CLK_TREE_1,
			RT1019_PLL_SRC_MASK, RT1019_PLL_SRC_SEL_BCLK);
		break;

	case RT1019_PLL_S_RC25M:
		snd_soc_component_update_bits(component, RT1019_CLK_TREE_1,
			RT1019_PLL_SRC_MASK, RT1019_PLL_SRC_SEL_RC);
		break;

	default:
		dev_err(component->dev, "Unknown PLL source %d\n", source);
		return -EINVAL;
	}

	ret = rl6231_pll_calc(freq_in, freq_out, &pll_code);
	if (ret < 0) {
		dev_err(component->dev, "Unsupported input clock %d\n", freq_in);
		return ret;
	}

	dev_dbg(component->dev, "bypass=%d m=%d n=%d k=%d\n",
		pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code),
		pll_code.n_code, pll_code.k_code);

	snd_soc_component_update_bits(component, RT1019_PWR_STRP_2,
		RT1019_AUTO_BITS_SEL_MASK | RT1019_AUTO_CLK_SEL_MASK,
		RT1019_AUTO_BITS_SEL_MANU | RT1019_AUTO_CLK_SEL_MANU);
	snd_soc_component_update_bits(component, RT1019_PLL_1,
		RT1019_PLL_M_MASK | RT1019_PLL_M_BP_MASK | RT1019_PLL_Q_8_8_MASK,
		((pll_code.m_bp ? 0 : pll_code.m_code) << RT1019_PLL_M_SFT) |
		(pll_code.m_bp << RT1019_PLL_M_BP_SFT) |
		((pll_code.n_code >> 8) & RT1019_PLL_Q_8_8_MASK));
	snd_soc_component_update_bits(component, RT1019_PLL_2,
		RT1019_PLL_Q_7_0_MASK, pll_code.n_code & RT1019_PLL_Q_7_0_MASK);
	snd_soc_component_update_bits(component, RT1019_PLL_3,
		RT1019_PLL_K_MASK, pll_code.k_code);

	rt1019->pll_in = freq_in;
	rt1019->pll_out = freq_out;
	rt1019->pll_src = source;

	return 0;
}

static int rt1019_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
			unsigned int rx_mask, int slots, int slot_width)
{
	struct snd_soc_component *component = dai->component;
	unsigned int cn = 0, cl = 0, rx_slotnum;
	int ret = 0, first_bit;

	switch (slots) {
	case 4:
		cn = RT1019_I2S_TX_4CH;
		break;
	case 6:
		cn = RT1019_I2S_TX_6CH;
		break;
	case 8:
		cn = RT1019_I2S_TX_8CH;
		break;
	case 2:
		break;
	default:
		return -EINVAL;
	}

	switch (slot_width) {
	case 20:
		cl = RT1019_TDM_CL_20;
		break;
	case 24:
		cl = RT1019_TDM_CL_24;
		break;
	case 32:
		cl = RT1019_TDM_CL_32;
		break;
	case 8:
		cl = RT1019_TDM_CL_8;
		break;
	case 16:
		break;
	default:
		return -EINVAL;
	}

	/* Rx slot configuration */
	rx_slotnum = hweight_long(rx_mask);
	if (rx_slotnum != 1) {
		ret = -EINVAL;
		dev_err(component->dev, "too many rx slots or zero slot\n");
		goto _set_tdm_err_;
	}
	/* This is an assumption that the system sends stereo audio to the
	 * amplifier typically. And the stereo audio is placed in slot 0/2/4/6
	 * as the starting slot. The users could select the channel from
	 * L/R/L+R by "Mono LR Select" control.
	 */
	first_bit = __ffs(rx_mask);
	switch (first_bit) {
	case 0:
	case 2:
	case 4:
	case 6:
		snd_soc_component_update_bits(component,
			RT1019_TDM_3,
			RT1019_TDM_I2S_TX_L_DAC1_1_MASK |
			RT1019_TDM_I2S_TX_R_DAC1_1_MASK,
			(first_bit << RT1019_TDM_I2S_TX_L_DAC1_1_SFT) |
			((first_bit + 1) << RT1019_TDM_I2S_TX_R_DAC1_1_SFT));
		break;
	case 1:
	case 3:
	case 5:
	case 7:
		snd_soc_component_update_bits(component,
			RT1019_TDM_3,
			RT1019_TDM_I2S_TX_L_DAC1_1_MASK |
			RT1019_TDM_I2S_TX_R_DAC1_1_MASK,
			((first_bit - 1) << RT1019_TDM_I2S_TX_L_DAC1_1_SFT) |
			(first_bit << RT1019_TDM_I2S_TX_R_DAC1_1_SFT));
		break;
	default:
		ret = -EINVAL;
		goto _set_tdm_err_;
	}

	snd_soc_component_update_bits(component, RT1019_TDM_1,
		RT1019_TDM_CL_MASK, cl);
	snd_soc_component_update_bits(component, RT1019_TDM_2,
		RT1019_I2S_CH_TX_MASK, cn);

_set_tdm_err_:
	return ret;
}

static int rt1019_probe(struct snd_soc_component *component)
{
	struct rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component);

	rt1019->component = component;
	snd_soc_component_write(component, RT1019_SDB_CTRL, 0xa);

	return 0;
}

#define RT1019_STEREO_RATES SNDRV_PCM_RATE_8000_192000
#define RT1019_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)

static const struct snd_soc_dai_ops rt1019_aif_dai_ops = {
	.hw_params = rt1019_hw_params,
	.set_fmt = rt1019_set_dai_fmt,
	.set_sysclk = rt1019_set_dai_sysclk,
	.set_pll = rt1019_set_dai_pll,
	.set_tdm_slot = rt1019_set_tdm_slot,
};

static struct snd_soc_dai_driver rt1019_dai[] = {
	{
		.name = "rt1019-aif",
		.id = 0,
		.playback = {
			.stream_name = "AIF Playback",
			.channels_min = 1,
			.channels_max = 2,
			.rates = RT1019_STEREO_RATES,
			.formats = RT1019_FORMATS,
		},
		.ops = &rt1019_aif_dai_ops,
	}
};

static const struct snd_soc_component_driver soc_component_dev_rt1019 = {
	.probe			= rt1019_probe,
	.controls		= rt1019_snd_controls,
	.num_controls		= ARRAY_SIZE(rt1019_snd_controls),
	.dapm_widgets		= rt1019_dapm_widgets,
	.num_dapm_widgets	= ARRAY_SIZE(rt1019_dapm_widgets),
	.dapm_routes		= rt1019_dapm_routes,
	.num_dapm_routes	= ARRAY_SIZE(rt1019_dapm_routes),
	.endianness		= 1,
};

static const struct regmap_config rt1019_regmap = {
	.reg_bits = 16,
	.val_bits = 8,
	.use_single_read = true,
	.use_single_write = true,
	.max_register = RT1019_BEEP_2,
	.volatile_reg = rt1019_volatile_register,
	.readable_reg = rt1019_readable_register,
	.cache_type = REGCACHE_MAPLE,
	.reg_defaults = rt1019_reg,
	.num_reg_defaults = ARRAY_SIZE(rt1019_reg),
};

static const struct i2c_device_id rt1019_i2c_id[] = {
	{ "rt1019", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, rt1019_i2c_id);

static const struct of_device_id rt1019_of_match[] __maybe_unused = {
	{ .compatible = "realtek,rt1019", },
	{},
};
MODULE_DEVICE_TABLE(of, rt1019_of_match);

#ifdef CONFIG_ACPI
static const struct acpi_device_id rt1019_acpi_match[] = {
	{ "10EC1019", 0},
	{ },
};
MODULE_DEVICE_TABLE(acpi, rt1019_acpi_match);
#endif

static int rt1019_i2c_probe(struct i2c_client *i2c)
{
	struct rt1019_priv *rt1019;
	int ret;
	unsigned int val, val2, dev_id;

	rt1019 = devm_kzalloc(&i2c->dev, sizeof(struct rt1019_priv),
				GFP_KERNEL);
	if (!rt1019)
		return -ENOMEM;

	i2c_set_clientdata(i2c, rt1019);

	rt1019->regmap = devm_regmap_init_i2c(i2c, &rt1019_regmap);
	if (IS_ERR(rt1019->regmap)) {
		ret = PTR_ERR(rt1019->regmap);
		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
			ret);
		return ret;
	}

	regmap_read(rt1019->regmap, RT1019_DEV_ID_1, &val);
	regmap_read(rt1019->regmap, RT1019_DEV_ID_2, &val2);
	dev_id = val << 8 | val2;
	if (dev_id != RT1019_DEVICE_ID_VAL && dev_id != RT1019_DEVICE_ID_VAL2) {
		dev_err(&i2c->dev,
			"Device with ID register 0x%x is not rt1019\n", dev_id);
		return -ENODEV;
	}

	return devm_snd_soc_register_component(&i2c->dev,
		&soc_component_dev_rt1019, rt1019_dai, ARRAY_SIZE(rt1019_dai));
}

static struct i2c_driver rt1019_i2c_driver = {
	.driver = {
		.name = "rt1019",
		.of_match_table = of_match_ptr(rt1019_of_match),
		.acpi_match_table = ACPI_PTR(rt1019_acpi_match),
	},
	.probe = rt1019_i2c_probe,
	.id_table = rt1019_i2c_id,
};
module_i2c_driver(rt1019_i2c_driver);

MODULE_DESCRIPTION("ASoC RT1019 driver");
MODULE_AUTHOR("Jack Yu <jack.yu@realtek.com>");
MODULE_LICENSE("GPL v2");