summaryrefslogtreecommitdiff
path: root/sound/soc/intel/boards/bytcr_rt5640.c
blob: 4a76b099a508954c4cd3e6b3a3bfdfda1755b0fe (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
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
/*
 *  byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform
 *
 *  Copyright (C) 2014 Intel Corp
 *  Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
 *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  General Public License for more details.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/device.h>
#include <linux/dmi.h>
#include <linux/slab.h>
#include <asm/cpu_device_id.h>
#include <asm/platform_sst_audio.h>
#include <linux/clk.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include "../../codecs/rt5640.h"
#include "../atom/sst-atom-controls.h"
#include "../common/sst-acpi.h"
#include "../common/sst-dsp.h"

enum {
	BYT_RT5640_DMIC1_MAP,
	BYT_RT5640_DMIC2_MAP,
	BYT_RT5640_IN1_MAP,
	BYT_RT5640_IN3_MAP,
};

#define BYT_RT5640_MAP(quirk)	((quirk) & 0xff)
#define BYT_RT5640_DMIC_EN	BIT(16)
#define BYT_RT5640_MONO_SPEAKER BIT(17)
#define BYT_RT5640_DIFF_MIC     BIT(18) /* defaut is single-ended */
#define BYT_RT5640_SSP2_AIF2     BIT(19) /* default is using AIF1  */
#define BYT_RT5640_SSP0_AIF1     BIT(20)
#define BYT_RT5640_SSP0_AIF2     BIT(21)
#define BYT_RT5640_MCLK_EN	BIT(22)
#define BYT_RT5640_MCLK_25MHZ	BIT(23)

struct byt_rt5640_private {
	struct clk *mclk;
};
static bool is_bytcr;

static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN;
static unsigned int quirk_override;
module_param_named(quirk, quirk_override, uint, 0444);
MODULE_PARM_DESC(quirk, "Board-specific quirk override");

static void log_quirks(struct device *dev)
{
	int map;
	bool has_dmic = false;
	bool has_mclk = false;
	bool has_ssp0 = false;
	bool has_ssp0_aif1 = false;
	bool has_ssp0_aif2 = false;
	bool has_ssp2_aif2 = false;

	map = BYT_RT5640_MAP(byt_rt5640_quirk);
	switch (map) {
	case BYT_RT5640_DMIC1_MAP:
		dev_info(dev, "quirk DMIC1_MAP enabled\n");
		has_dmic = true;
		break;
	case BYT_RT5640_DMIC2_MAP:
		dev_info(dev, "quirk DMIC2_MAP enabled\n");
		has_dmic = true;
		break;
	case BYT_RT5640_IN1_MAP:
		dev_info(dev, "quirk IN1_MAP enabled\n");
		break;
	case BYT_RT5640_IN3_MAP:
		dev_info(dev, "quirk IN3_MAP enabled\n");
		break;
	default:
		dev_err(dev, "quirk map 0x%x is not supported, microphone input will not work\n", map);
		break;
	}
	if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
		if (has_dmic)
			dev_info(dev, "quirk DMIC enabled\n");
		else
			dev_err(dev, "quirk DMIC enabled but no DMIC input set, will be ignored\n");
	}
	if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER)
		dev_info(dev, "quirk MONO_SPEAKER enabled\n");
	if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
		if (!has_dmic)
			dev_info(dev, "quirk DIFF_MIC enabled\n");
		else
			dev_info(dev, "quirk DIFF_MIC enabled but DMIC input selected, will be ignored\n");
	}
	if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
		dev_info(dev, "quirk SSP0_AIF1 enabled\n");
		has_ssp0 = true;
		has_ssp0_aif1 = true;
	}
	if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
		dev_info(dev, "quirk SSP0_AIF2 enabled\n");
		has_ssp0 = true;
		has_ssp0_aif2 = true;
	}
	if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
		dev_info(dev, "quirk SSP2_AIF2 enabled\n");
		has_ssp2_aif2 = true;
	}
	if (is_bytcr && !has_ssp0)
		dev_err(dev, "Invalid routing, bytcr detected but no SSP0-based quirk, audio cannot work with SSP2 on bytcr\n");
	if (has_ssp0_aif1 && has_ssp0_aif2)
		dev_err(dev, "Invalid routing, SSP0 cannot be connected to both AIF1 and AIF2\n");
	if (has_ssp0 && has_ssp2_aif2)
		dev_err(dev, "Invalid routing, cannot have both SSP0 and SSP2 connected to codec\n");

	if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
		dev_info(dev, "quirk MCLK_EN enabled\n");
		has_mclk = true;
	}
	if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
		if (has_mclk)
			dev_info(dev, "quirk MCLK_25MHZ enabled\n");
		else
			dev_err(dev, "quirk MCLK_25MHZ enabled but quirk MCLK not selected, will be ignored\n");
	}
}


#define BYT_CODEC_DAI1	"rt5640-aif1"
#define BYT_CODEC_DAI2	"rt5640-aif2"

static inline struct snd_soc_dai *byt_get_codec_dai(struct snd_soc_card *card)
{
	struct snd_soc_pcm_runtime *rtd;

	list_for_each_entry(rtd, &card->rtd_list, list) {
		if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI1,
			     strlen(BYT_CODEC_DAI1)))
			return rtd->codec_dai;
		if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI2,
				strlen(BYT_CODEC_DAI2)))
			return rtd->codec_dai;

	}
	return NULL;
}

static int platform_clock_control(struct snd_soc_dapm_widget *w,
				  struct snd_kcontrol *k, int  event)
{
	struct snd_soc_dapm_context *dapm = w->dapm;
	struct snd_soc_card *card = dapm->card;
	struct snd_soc_dai *codec_dai;
	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
	int ret;

	codec_dai = byt_get_codec_dai(card);
	if (!codec_dai) {
		dev_err(card->dev,
			"Codec dai not found; Unable to set platform clock\n");
		return -EIO;
	}

	if (SND_SOC_DAPM_EVENT_ON(event)) {
		if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
			ret = clk_prepare_enable(priv->mclk);
			if (ret < 0) {
				dev_err(card->dev,
					"could not configure MCLK state\n");
				return ret;
			}
		}
		ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
					     48000 * 512,
					     SND_SOC_CLOCK_IN);
	} else {
		/*
		 * Set codec clock source to internal clock before
		 * turning off the platform clock. Codec needs clock
		 * for Jack detection and button press
		 */
		ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
					     48000 * 512,
					     SND_SOC_CLOCK_IN);
		if (!ret) {
			if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk)
				clk_disable_unprepare(priv->mclk);
		}
	}

	if (ret < 0) {
		dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
		return ret;
	}

	return 0;
}

static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Internal Mic", NULL),
	SND_SOC_DAPM_SPK("Speaker", NULL),
	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
			    platform_clock_control, SND_SOC_DAPM_PRE_PMU |
			    SND_SOC_DAPM_POST_PMD),

};

static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
	{"Headphone", NULL, "Platform Clock"},
	{"Headset Mic", NULL, "Platform Clock"},
	{"Internal Mic", NULL, "Platform Clock"},
	{"Speaker", NULL, "Platform Clock"},

	{"Headset Mic", NULL, "MICBIAS1"},
	{"IN2P", NULL, "Headset Mic"},
	{"Headphone", NULL, "HPOL"},
	{"Headphone", NULL, "HPOR"},
};

static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
	{"DMIC1", NULL, "Internal Mic"},
};

static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
	{"DMIC2", NULL, "Internal Mic"},
};

static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
	{"Internal Mic", NULL, "MICBIAS1"},
	{"IN1P", NULL, "Internal Mic"},
};

static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = {
	{"Internal Mic", NULL, "MICBIAS1"},
	{"IN3P", NULL, "Internal Mic"},
};

static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
	{"ssp2 Tx", NULL, "codec_out0"},
	{"ssp2 Tx", NULL, "codec_out1"},
	{"codec_in0", NULL, "ssp2 Rx"},
	{"codec_in1", NULL, "ssp2 Rx"},

	{"AIF1 Playback", NULL, "ssp2 Tx"},
	{"ssp2 Rx", NULL, "AIF1 Capture"},
};

static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
	{"ssp2 Tx", NULL, "codec_out0"},
	{"ssp2 Tx", NULL, "codec_out1"},
	{"codec_in0", NULL, "ssp2 Rx"},
	{"codec_in1", NULL, "ssp2 Rx"},

	{"AIF2 Playback", NULL, "ssp2 Tx"},
	{"ssp2 Rx", NULL, "AIF2 Capture"},
};

static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
	{"ssp0 Tx", NULL, "modem_out"},
	{"modem_in", NULL, "ssp0 Rx"},

	{"AIF1 Playback", NULL, "ssp0 Tx"},
	{"ssp0 Rx", NULL, "AIF1 Capture"},
};

static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
	{"ssp0 Tx", NULL, "modem_out"},
	{"modem_in", NULL, "ssp0 Rx"},

	{"AIF2 Playback", NULL, "ssp0 Tx"},
	{"ssp0 Rx", NULL, "AIF2 Capture"},
};

static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
	{"Speaker", NULL, "SPOLP"},
	{"Speaker", NULL, "SPOLN"},
	{"Speaker", NULL, "SPORP"},
	{"Speaker", NULL, "SPORN"},
};

static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
	{"Speaker", NULL, "SPOLP"},
	{"Speaker", NULL, "SPOLN"},
};

static const struct snd_kcontrol_new byt_rt5640_controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphone"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Internal Mic"),
	SOC_DAPM_PIN_SWITCH("Speaker"),
};

static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
					struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	int ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
				     params_rate(params) * 512,
				     SND_SOC_CLOCK_IN);

	if (ret < 0) {
		dev_err(rtd->dev, "can't set codec clock %d\n", ret);
		return ret;
	}

	if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) {
		/* use bitclock as PLL input */
		if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
			(byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {

			/* 2x16 bit slots on SSP0 */
			ret = snd_soc_dai_set_pll(codec_dai, 0,
						RT5640_PLL1_S_BCLK1,
						params_rate(params) * 32,
						params_rate(params) * 512);
		} else {
			/* 2x15 bit slots on SSP2 */
			ret = snd_soc_dai_set_pll(codec_dai, 0,
						RT5640_PLL1_S_BCLK1,
						params_rate(params) * 50,
						params_rate(params) * 512);
		}
	} else {
		if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
			ret = snd_soc_dai_set_pll(codec_dai, 0,
						RT5640_PLL1_S_MCLK,
						25000000,
						params_rate(params) * 512);
		} else {
			ret = snd_soc_dai_set_pll(codec_dai, 0,
						RT5640_PLL1_S_MCLK,
						19200000,
						params_rate(params) * 512);
		}
	}

	if (ret < 0) {
		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
		return ret;
	}

	return 0;
}

static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
{
	byt_rt5640_quirk = (unsigned long)id->driver_data;
	return 1;
}

static const struct dmi_system_id byt_rt5640_quirk_table[] = {
	{
		.callback = byt_rt5640_quirk_cb,
		.matches = {
			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
		},
		.driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
						 BYT_RT5640_MCLK_EN),
	},
	{
		.callback = byt_rt5640_quirk_cb,
		.matches = {
			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
		},
		.driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
						 BYT_RT5640_MONO_SPEAKER |
						 BYT_RT5640_DIFF_MIC |
						 BYT_RT5640_SSP0_AIF2 |
						 BYT_RT5640_MCLK_EN
						 ),
	},
	{
		.callback = byt_rt5640_quirk_cb,
		.matches = {
			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "DellInc."),
			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
		},
		.driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
						 BYT_RT5640_DMIC_EN |
						 BYT_RT5640_MCLK_EN),
	},
	{
		.callback = byt_rt5640_quirk_cb,
		.matches = {
			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
		},
		.driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
						 BYT_RT5640_MCLK_EN),
	},
	{
		.callback = byt_rt5640_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
		},
		.driver_data = (unsigned long *)(BYT_RT5640_DMIC1_MAP |
						 BYT_RT5640_DMIC_EN),
	},
	{
		.callback = byt_rt5640_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
			DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
		},
		.driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP |
						BYT_RT5640_MCLK_EN |
						BYT_RT5640_SSP0_AIF1),
	},
	{
		.callback = byt_rt5640_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
		},
		.driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
						 BYT_RT5640_MCLK_EN |
						 BYT_RT5640_SSP0_AIF1),

	},
	{
		.callback = byt_rt5640_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
		},
		.driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP |
						 BYT_RT5640_MCLK_EN |
						 BYT_RT5640_SSP0_AIF1),

	},
	{}
};

static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
{
	int ret;
	struct snd_soc_codec *codec = runtime->codec;
	struct snd_soc_card *card = runtime->card;
	const struct snd_soc_dapm_route *custom_map;
	struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
	int num_routes;

	card->dapm.idle_bias_off = true;

	rt5640_sel_asrc_clk_src(codec,
				RT5640_DA_STEREO_FILTER |
				RT5640_DA_MONO_L_FILTER	|
				RT5640_DA_MONO_R_FILTER	|
				RT5640_AD_STEREO_FILTER	|
				RT5640_AD_MONO_L_FILTER	|
				RT5640_AD_MONO_R_FILTER,
				RT5640_CLK_SEL_ASRC);

	ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
					ARRAY_SIZE(byt_rt5640_controls));
	if (ret) {
		dev_err(card->dev, "unable to add card controls\n");
		return ret;
	}

	switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
	case BYT_RT5640_IN1_MAP:
		custom_map = byt_rt5640_intmic_in1_map;
		num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
		break;
	case BYT_RT5640_IN3_MAP:
		custom_map = byt_rt5640_intmic_in3_map;
		num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map);
		break;
	case BYT_RT5640_DMIC2_MAP:
		custom_map = byt_rt5640_intmic_dmic2_map;
		num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
		break;
	default:
		custom_map = byt_rt5640_intmic_dmic1_map;
		num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
	}

	ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
	if (ret)
		return ret;

	if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
		ret = snd_soc_dapm_add_routes(&card->dapm,
					byt_rt5640_ssp2_aif2_map,
					ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
	} else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
		ret = snd_soc_dapm_add_routes(&card->dapm,
					byt_rt5640_ssp0_aif1_map,
					ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
	} else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
		ret = snd_soc_dapm_add_routes(&card->dapm,
					byt_rt5640_ssp0_aif2_map,
					ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
	} else {
		ret = snd_soc_dapm_add_routes(&card->dapm,
					byt_rt5640_ssp2_aif1_map,
					ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
	}
	if (ret)
		return ret;

	if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
		ret = snd_soc_dapm_add_routes(&card->dapm,
					byt_rt5640_mono_spk_map,
					ARRAY_SIZE(byt_rt5640_mono_spk_map));
	} else {
		ret = snd_soc_dapm_add_routes(&card->dapm,
					byt_rt5640_stereo_spk_map,
					ARRAY_SIZE(byt_rt5640_stereo_spk_map));
	}
	if (ret)
		return ret;

	if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
		snd_soc_update_bits(codec,  RT5640_IN1_IN2, RT5640_IN_DF1,
				    RT5640_IN_DF1);
	}

	if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
		ret = rt5640_dmic_enable(codec, 0, 0);
		if (ret)
			return ret;
	}

	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");

	if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
		/*
		 * The firmware might enable the clock at
		 * boot (this information may or may not
		 * be reflected in the enable clock register).
		 * To change the rate we must disable the clock
		 * first to cover these cases. Due to common
		 * clock framework restrictions that do not allow
		 * to disable a clock that has not been enabled,
		 * we need to enable the clock first.
		 */
		ret = clk_prepare_enable(priv->mclk);
		if (!ret)
			clk_disable_unprepare(priv->mclk);

		if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
			ret = clk_set_rate(priv->mclk, 25000000);
		else
			ret = clk_set_rate(priv->mclk, 19200000);

		if (ret)
			dev_err(card->dev, "unable to set MCLK rate\n");
	}

	return ret;
}

static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
	.formats = SNDRV_PCM_FMTBIT_S24_LE,
	.rate_min = 48000,
	.rate_max = 48000,
	.channels_min = 2,
	.channels_max = 2,
};

static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
			    struct snd_pcm_hw_params *params)
{
	struct snd_interval *rate = hw_param_interval(params,
			SNDRV_PCM_HW_PARAM_RATE);
	struct snd_interval *channels = hw_param_interval(params,
						SNDRV_PCM_HW_PARAM_CHANNELS);
	int ret;

	/* The DSP will covert the FE rate to 48k, stereo */
	rate->min = rate->max = 48000;
	channels->min = channels->max = 2;

	if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
		(byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {

		/* set SSP0 to 16-bit */
		params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);

		/*
		 * Default mode for SSP configuration is TDM 4 slot, override config
		 * with explicit setting to I2S 2ch 16-bit. The word length is set with
		 * dai_set_tdm_slot() since there is no other API exposed
		 */
		ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
					SND_SOC_DAIFMT_I2S     |
					SND_SOC_DAIFMT_NB_NF   |
					SND_SOC_DAIFMT_CBS_CFS
			);
		if (ret < 0) {
			dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
			return ret;
		}

		ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
		if (ret < 0) {
			dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
			return ret;
		}

	} else {

		/* set SSP2 to 24-bit */
		params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);

		/*
		 * Default mode for SSP configuration is TDM 4 slot, override config
		 * with explicit setting to I2S 2ch 24-bit. The word length is set with
		 * dai_set_tdm_slot() since there is no other API exposed
		 */
		ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
					SND_SOC_DAIFMT_I2S     |
					SND_SOC_DAIFMT_NB_NF   |
					SND_SOC_DAIFMT_CBS_CFS
			);
		if (ret < 0) {
			dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
			return ret;
		}

		ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
		if (ret < 0) {
			dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
			return ret;
		}
	}
	return 0;
}

static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
{
	return snd_pcm_hw_constraint_single(substream->runtime,
			SNDRV_PCM_HW_PARAM_RATE, 48000);
}

static const struct snd_soc_ops byt_rt5640_aif1_ops = {
	.startup = byt_rt5640_aif1_startup,
};

static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
	.hw_params = byt_rt5640_aif1_hw_params,
};

static struct snd_soc_dai_link byt_rt5640_dais[] = {
	[MERR_DPCM_AUDIO] = {
		.name = "Baytrail Audio Port",
		.stream_name = "Baytrail Audio",
		.cpu_dai_name = "media-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
		.nonatomic = true,
		.dynamic = 1,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &byt_rt5640_aif1_ops,
	},
	[MERR_DPCM_DEEP_BUFFER] = {
		.name = "Deep-Buffer Audio Port",
		.stream_name = "Deep-Buffer Audio",
		.cpu_dai_name = "deepbuffer-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
		.nonatomic = true,
		.dynamic = 1,
		.dpcm_playback = 1,
		.ops = &byt_rt5640_aif1_ops,
	},
	[MERR_DPCM_COMPR] = {
		.name = "Baytrail Compressed Port",
		.stream_name = "Baytrail Compress",
		.cpu_dai_name = "compress-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
	},
		/* back ends */
	{
		.name = "SSP2-Codec",
		.id = 1,
		.cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
		.platform_name = "sst-mfld-platform",
		.no_pcm = 1,
		.codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
		.codec_name = "i2c-10EC5640:00", /* overwritten with HID */
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
						| SND_SOC_DAIFMT_CBS_CFS,
		.be_hw_params_fixup = byt_rt5640_codec_fixup,
		.ignore_suspend = 1,
		.nonatomic = true,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.init = byt_rt5640_init,
		.ops = &byt_rt5640_be_ssp2_ops,
	},
};

/* SoC card */
static struct snd_soc_card byt_rt5640_card = {
	.name = "bytcr-rt5640",
	.owner = THIS_MODULE,
	.dai_link = byt_rt5640_dais,
	.num_links = ARRAY_SIZE(byt_rt5640_dais),
	.dapm_widgets = byt_rt5640_widgets,
	.num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
	.dapm_routes = byt_rt5640_audio_map,
	.num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
	.fully_routed = true,
};

static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
static char byt_rt5640_codec_aif_name[12]; /*  = "rt5640-aif[1|2]" */
static char byt_rt5640_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */

static bool is_valleyview(void)
{
	static const struct x86_cpu_id cpu_ids[] = {
		{ X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
		{}
	};

	if (!x86_match_cpu(cpu_ids))
		return false;
	return true;
}

struct acpi_chan_package {   /* ACPICA seems to require 64 bit integers */
	u64 aif_value;       /* 1: AIF1, 2: AIF2 */
	u64 mclock_value;    /* usually 25MHz (0x17d7940), ignored */
};

static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
{
	int ret_val = 0;
	struct sst_acpi_mach *mach;
	const char *i2c_name = NULL;
	int i;
	int dai_index;
	struct byt_rt5640_private *priv;

	is_bytcr = false;
	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
	if (!priv)
		return -ENOMEM;

	/* register the soc card */
	byt_rt5640_card.dev = &pdev->dev;
	mach = byt_rt5640_card.dev->platform_data;
	snd_soc_card_set_drvdata(&byt_rt5640_card, priv);

	/* fix index of codec dai */
	dai_index = MERR_DPCM_COMPR + 1;
	for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
		if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
			dai_index = i;
			break;
		}
	}

	/* fixup codec name based on HID */
	i2c_name = sst_acpi_find_name_from_hid(mach->id);
	if (i2c_name != NULL) {
		snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
			"%s%s", "i2c-", i2c_name);

		byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
	}

	/*
	 * swap SSP0 if bytcr is detected
	 * (will be overridden if DMI quirk is detected)
	 */
	if (is_valleyview()) {
		struct sst_platform_info *p_info = mach->pdata;
		const struct sst_res_info *res_info = p_info->res_info;

		if (res_info->acpi_ipc_irq_index == 0)
			is_bytcr = true;
	}

	if (is_bytcr) {
		/*
		 * Baytrail CR platforms may have CHAN package in BIOS, try
		 * to find relevant routing quirk based as done on Windows
		 * platforms. We have to read the information directly from the
		 * BIOS, at this stage the card is not created and the links
		 * with the codec driver/pdata are non-existent
		 */

		struct acpi_chan_package chan_package;

		/* format specified: 2 64-bit integers */
		struct acpi_buffer format = {sizeof("NN"), "NN"};
		struct acpi_buffer state = {0, NULL};
		struct sst_acpi_package_context pkg_ctx;
		bool pkg_found = false;

		state.length = sizeof(chan_package);
		state.pointer = &chan_package;

		pkg_ctx.name = "CHAN";
		pkg_ctx.length = 2;
		pkg_ctx.format = &format;
		pkg_ctx.state = &state;
		pkg_ctx.data_valid = false;

		pkg_found = sst_acpi_find_package_from_hid(mach->id, &pkg_ctx);
		if (pkg_found) {
			if (chan_package.aif_value == 1) {
				dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
				byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1;
			} else  if (chan_package.aif_value == 2) {
				dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
				byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
			} else {
				dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
				pkg_found = false;
			}
		}

		if (!pkg_found) {
			/* no BIOS indications, assume SSP0-AIF2 connection */
			byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
		}

		/* change defaults for Baytrail-CR capture */
		byt_rt5640_quirk |= BYT_RT5640_IN1_MAP;
		byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC;
	} else {
		byt_rt5640_quirk |= (BYT_RT5640_DMIC1_MAP |
				BYT_RT5640_DMIC_EN);
	}

	/* check quirks before creating card */
	dmi_check_system(byt_rt5640_quirk_table);
	if (quirk_override) {
		dev_info(&pdev->dev, "Overriding quirk 0x%x => 0x%x\n",
			 (unsigned int)byt_rt5640_quirk, quirk_override);
		byt_rt5640_quirk = quirk_override;
	}
	log_quirks(&pdev->dev);

	if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
	    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {

		/* fixup codec aif name */
		snprintf(byt_rt5640_codec_aif_name,
			sizeof(byt_rt5640_codec_aif_name),
			"%s", "rt5640-aif2");

		byt_rt5640_dais[dai_index].codec_dai_name =
			byt_rt5640_codec_aif_name;
	}

	if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
	    (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {

		/* fixup cpu dai name name */
		snprintf(byt_rt5640_cpu_dai_name,
			sizeof(byt_rt5640_cpu_dai_name),
			"%s", "ssp0-port");

		byt_rt5640_dais[dai_index].cpu_dai_name =
			byt_rt5640_cpu_dai_name;
	}

	if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && (is_valleyview())) {
		priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
		if (IS_ERR(priv->mclk)) {
			ret_val = PTR_ERR(priv->mclk);

			dev_err(&pdev->dev,
				"Failed to get MCLK from pmc_plt_clk_3: %d\n",
				ret_val);

			/*
			 * Fall back to bit clock usage for -ENOENT (clock not
			 * available likely due to missing dependencies), bail
			 * for all other errors, including -EPROBE_DEFER
			 */
			if (ret_val != -ENOENT)
				return ret_val;
			byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN;
		}
	}

	ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);

	if (ret_val) {
		dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
			ret_val);
		return ret_val;
	}
	platform_set_drvdata(pdev, &byt_rt5640_card);
	return ret_val;
}

static struct platform_driver snd_byt_rt5640_mc_driver = {
	.driver = {
		.name = "bytcr_rt5640",
	},
	.probe = snd_byt_rt5640_mc_probe,
};

module_platform_driver(snd_byt_rt5640_mc_driver);

MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:bytcr_rt5640");