forked from ~ljy/RK356X_SDK_RELEASE
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2024-01-31 f70575805708cabdedea7498aaa3f710fde4d920 
 kernel/sound/soc/codecs/ak4458.c
....@@ -12,6 +12,7 @@
1212 #include <linux/of_device.h>
1313 #include <linux/of_gpio.h>
1414 #include <linux/pm_runtime.h>
15
+#include <linux/regulator/consumer.h>
1516 #include <linux/slab.h>
1617 #include <sound/initval.h>
1718 #include <sound/pcm_params.h>
....@@ -21,8 +22,27 @@
2122 
2223 #include "ak4458.h"
2324 
25
+#define AK4458_NUM_SUPPLIES 2
26
+static const char *ak4458_supply_names[AK4458_NUM_SUPPLIES] = {
27
+	"DVDD",
28
+	"AVDD",
29
+};
30
+
31
+enum ak4458_type {
32
+	AK4458 = 0,
33
+	AK4497 = 1,
34
+};
35
+
36
+struct ak4458_drvdata {
37
+	struct snd_soc_dai_driver *dai_drv;
38
+	const struct snd_soc_component_driver *comp_drv;
39
+	enum ak4458_type type;
40
+};
41
+
2442 /* AK4458 Codec Private Data */
2543 struct ak4458_priv {
44
+	struct regulator_bulk_data supplies[AK4458_NUM_SUPPLIES];
45
+	const struct ak4458_drvdata *drvdata;
2646 	struct device *dev;
2747 	struct regmap *regmap;
2848 	struct gpio_desc *reset_gpiod;
....@@ -32,6 +52,7 @@
3252 	int fmt;
3353 	int slots;
3454 	int slot_width;
55
+	u32 dsd_path;    /* For ak4497 */
3556 };
3657 
3758 static const struct reg_default ak4458_reg_defaults[] = {
....@@ -258,6 +279,33 @@
258279 	{"AK4458 AOUTD",	NULL,	"AK4458 DAC4"},
259280 };
260281 
282
+/* ak4497 controls */
283
+static const struct snd_kcontrol_new ak4497_snd_controls[] = {
284
+	SOC_DOUBLE_R_TLV("DAC Playback Volume", AK4458_03_LCHATT,
285
+			 AK4458_04_RCHATT, 0, 0xFF, 0, dac_tlv),
286
+	SOC_ENUM("AK4497 De-emphasis Response DAC", ak4458_dac1_dem_enum),
287
+	SOC_ENUM_EXT("AK4497 Digital Filter Setting", ak4458_digfil_enum,
288
+		     get_digfil, set_digfil),
289
+	SOC_ENUM("AK4497 Inverting Enable of DZFB", ak4458_dzfb_enum),
290
+	SOC_ENUM("AK4497 Sound Mode", ak4458_sm_enum),
291
+	SOC_ENUM("AK4497 Attenuation transition Time Setting",
292
+		 ak4458_ats_enum),
293
+};
294
+
295
+/* ak4497 dapm widgets */
296
+static const struct snd_soc_dapm_widget ak4497_dapm_widgets[] = {
297
+	SND_SOC_DAPM_DAC("AK4497 DAC", NULL, AK4458_0A_CONTROL6, 2, 0),
298
+	SND_SOC_DAPM_AIF_IN("AK4497 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0),
299
+	SND_SOC_DAPM_OUTPUT("AK4497 AOUT"),
300
+};
301
+
302
+/* ak4497 dapm routes */
303
+static const struct snd_soc_dapm_route ak4497_intercon[] = {
304
+	{"AK4497 DAC",		NULL,	"AK4497 SDTI"},
305
+	{"AK4497 AOUT",		NULL,	"AK4497 DAC"},
306
+
307
+};
308
+
261309 static int ak4458_rstn_control(struct snd_soc_component *component, int bit)
262310 {
263311 	int ret;
....@@ -285,11 +333,53 @@
285333 	struct snd_soc_component *component = dai->component;
286334 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
287335 	int pcm_width = max(params_physical_width(params), ak4458->slot_width);
288
-	int nfs1;
289
-	u8 format;
336
+	u8 format, dsdsel0, dsdsel1;
337
+	int nfs1, dsd_bclk;
290338 
291339 	nfs1 = params_rate(params);
292340 	ak4458->fs = nfs1;
341
+
342
+	/* calculate bit clock */
343
+	switch (params_format(params)) {
344
+	case SNDRV_PCM_FORMAT_DSD_U8:
345
+	case SNDRV_PCM_FORMAT_DSD_U16_LE:
346
+	case SNDRV_PCM_FORMAT_DSD_U16_BE:
347
+	case SNDRV_PCM_FORMAT_DSD_U32_LE:
348
+	case SNDRV_PCM_FORMAT_DSD_U32_BE:
349
+		dsd_bclk = nfs1 * params_physical_width(params);
350
+		switch (dsd_bclk) {
351
+		case 2822400:
352
+			dsdsel0 = 0;
353
+			dsdsel1 = 0;
354
+			break;
355
+		case 5644800:
356
+			dsdsel0 = 1;
357
+			dsdsel1 = 0;
358
+			break;
359
+		case 11289600:
360
+			dsdsel0 = 0;
361
+			dsdsel1 = 1;
362
+			break;
363
+		case 22579200:
364
+			if (ak4458->drvdata->type == AK4497) {
365
+				dsdsel0 = 1;
366
+				dsdsel1 = 1;
367
+			} else {
368
+				dev_err(dai->dev, "DSD512 not supported.\n");
369
+				return -EINVAL;
370
+			}
371
+			break;
372
+		default:
373
+			dev_err(dai->dev, "Unsupported dsd bclk.\n");
374
+			return -EINVAL;
375
+		}
376
+
377
+		snd_soc_component_update_bits(component, AK4458_06_DSD1,
378
+					      AK4458_DSDSEL_MASK, dsdsel0);
379
+		snd_soc_component_update_bits(component, AK4458_09_DSD2,
380
+					      AK4458_DSDSEL_MASK, dsdsel1);
381
+		break;
382
+	}
293383 
294384 	/* Master Clock Frequency Auto Setting Mode Enable */
295385 	snd_soc_component_update_bits(component, AK4458_00_CONTROL1, 0x80, 0x80);
....@@ -313,6 +403,9 @@
313403 			format = AK4458_DIF_32BIT_LSB;
314404 			break;
315405 		case SND_SOC_DAIFMT_DSP_B:
406
+			format = AK4458_DIF_32BIT_MSB;
407
+			break;
408
+		case SND_SOC_DAIFMT_PDM:
316409 			format = AK4458_DIF_32BIT_MSB;
317410 			break;
318411 		default:
....@@ -353,6 +446,7 @@
353446 	case SND_SOC_DAIFMT_LEFT_J:
354447 	case SND_SOC_DAIFMT_RIGHT_J:
355448 	case SND_SOC_DAIFMT_DSP_B:
449
+	case SND_SOC_DAIFMT_PDM:
356450 		ak4458->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
357451 		break;
358452 	default:
....@@ -360,6 +454,12 @@
360454 			fmt & SND_SOC_DAIFMT_FORMAT_MASK);
361455 		return -EINVAL;
362456 	}
457
+
458
+	/* DSD mode */
459
+	snd_soc_component_update_bits(component, AK4458_02_CONTROL3,
460
+				      AK4458_DP_MASK,
461
+				      ak4458->fmt == SND_SOC_DAIFMT_PDM ?
462
+				      AK4458_DP_MASK : 0);
363463 
364464 	ak4458_rstn_control(component, 0);
365465 	ak4458_rstn_control(component, 1);
....@@ -369,29 +469,29 @@
369469 
370470 static const int att_speed[] = { 4080, 2040, 510, 255 };
371471 
372
-static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute)
472
+static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute, int direction)
373473 {
374474 	struct snd_soc_component *component = dai->component;
375475 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
376
-	int nfs, ndt, ret, reg;
476
+	int nfs, ndt, reg;
377477 	int ats;
378478 
379479 	nfs = ak4458->fs;
380480 
381
-	reg = snd_soc_component_read32(component, AK4458_0B_CONTROL7);
481
+	reg = snd_soc_component_read(component, AK4458_0B_CONTROL7);
382482 	ats = (reg & AK4458_ATS_MASK) >> AK4458_ATS_SHIFT;
383483 
384484 	ndt = att_speed[ats] / (nfs / 1000);
385485 
386486 	if (mute) {
387
-		ret = snd_soc_component_update_bits(component, AK4458_01_CONTROL2,  0x01, 1);
487
+		snd_soc_component_update_bits(component, AK4458_01_CONTROL2,  0x01, 1);
388488 		mdelay(ndt);
389489 		if (ak4458->mute_gpiod)
390490 			gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
391491 	} else {
392492 		if (ak4458->mute_gpiod)
393493 			gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);
394
-		ret = snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 0);
494
+		snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 0);
395495 		mdelay(ndt);
396496 	}
397497 
....@@ -432,7 +532,10 @@
432532 
433533 #define AK4458_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE |\
434534 			 SNDRV_PCM_FMTBIT_S24_LE |\
435
-			 SNDRV_PCM_FMTBIT_S32_LE)
535
+			 SNDRV_PCM_FMTBIT_S32_LE |\
536
+			 SNDRV_PCM_FMTBIT_DSD_U8 |\
537
+			 SNDRV_PCM_FMTBIT_DSD_U16_LE |\
538
+			 SNDRV_PCM_FMTBIT_DSD_U32_LE)
436539 
437540 static const unsigned int ak4458_rates[] = {
438541 	8000, 11025,  16000, 22050,
....@@ -459,12 +562,13 @@
459562 	return ret;
460563 }
461564 
462
-static struct snd_soc_dai_ops ak4458_dai_ops = {
565
+static const struct snd_soc_dai_ops ak4458_dai_ops = {
463566 	.startup        = ak4458_startup,
464567 	.hw_params	= ak4458_hw_params,
465568 	.set_fmt	= ak4458_set_dai_fmt,
466
-	.digital_mute	= ak4458_set_dai_mute,
569
+	.mute_stream	= ak4458_set_dai_mute,
467570 	.set_tdm_slot	= ak4458_set_tdm_slot,
571
+	.no_capture_mute = 1,
468572 };
469573 
470574 static struct snd_soc_dai_driver ak4458_dai = {
....@@ -479,18 +583,22 @@
479583 	.ops = &ak4458_dai_ops,
480584 };
481585 
482
-static void ak4458_power_off(struct ak4458_priv *ak4458)
483
-{
484
-	if (ak4458->reset_gpiod) {
485
-		gpiod_set_value_cansleep(ak4458->reset_gpiod, 0);
486
-		usleep_range(1000, 2000);
487
-	}
488
-}
586
+static struct snd_soc_dai_driver ak4497_dai = {
587
+	.name = "ak4497-aif",
588
+	.playback = {
589
+		.stream_name = "Playback",
590
+		.channels_min = 1,
591
+		.channels_max = 2,
592
+		.rates = SNDRV_PCM_RATE_KNOT,
593
+		.formats = AK4458_FORMATS,
594
+	},
595
+	.ops = &ak4458_dai_ops,
596
+};
489597 
490
-static void ak4458_power_on(struct ak4458_priv *ak4458)
598
+static void ak4458_reset(struct ak4458_priv *ak4458, bool active)
491599 {
492600 	if (ak4458->reset_gpiod) {
493
-		gpiod_set_value_cansleep(ak4458->reset_gpiod, 1);
601
+		gpiod_set_value_cansleep(ak4458->reset_gpiod, active);
494602 		usleep_range(1000, 2000);
495603 	}
496604 }
....@@ -504,12 +612,19 @@
504612 	if (ak4458->mute_gpiod)
505613 		gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
506614 
507
-	ak4458_power_on(ak4458);
615
+	ak4458_reset(ak4458, false);
508616 
509617 	ret = snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
510618 			    0x80, 0x80);   /* ACKS bit = 1; 10000000 */
511619 	if (ret < 0)
512620 		return ret;
621
+
622
+	if (ak4458->drvdata->type == AK4497) {
623
+		ret = snd_soc_component_update_bits(component, AK4458_09_DSD2,
624
+						    0x4, (ak4458->dsd_path << 2));
625
+		if (ret < 0)
626
+			return ret;
627
+	}
513628 
514629 	return ak4458_rstn_control(component, 1);
515630 }
....@@ -527,7 +642,7 @@
527642 {
528643 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
529644 
530
-	ak4458_power_off(ak4458);
645
+	ak4458_reset(ak4458, true);
531646 }
532647 
533648 #ifdef CONFIG_PM
....@@ -537,23 +652,33 @@
537652 
538653 	regcache_cache_only(ak4458->regmap, true);
539654 
540
-	ak4458_power_off(ak4458);
655
+	ak4458_reset(ak4458, true);
541656 
542657 	if (ak4458->mute_gpiod)
543658 		gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);
544659 
660
+	regulator_bulk_disable(ARRAY_SIZE(ak4458->supplies),
661
+			       ak4458->supplies);
545662 	return 0;
546663 }
547664 
548665 static int __maybe_unused ak4458_runtime_resume(struct device *dev)
549666 {
550667 	struct ak4458_priv *ak4458 = dev_get_drvdata(dev);
668
+	int ret;
669
+
670
+	ret = regulator_bulk_enable(ARRAY_SIZE(ak4458->supplies),
671
+				    ak4458->supplies);
672
+	if (ret != 0) {
673
+		dev_err(ak4458->dev, "Failed to enable supplies: %d\n", ret);
674
+		return ret;
675
+	}
551676 
552677 	if (ak4458->mute_gpiod)
553678 		gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
554679 
555
-	ak4458_power_off(ak4458);
556
-	ak4458_power_on(ak4458);
680
+	ak4458_reset(ak4458, true);
681
+	ak4458_reset(ak4458, false);
557682 
558683 	regcache_cache_only(ak4458->regmap, false);
559684 	regcache_mark_dirty(ak4458->regmap);
....@@ -577,6 +702,21 @@
577702 	.non_legacy_dai_naming	= 1,
578703 };
579704 
705
+static const struct snd_soc_component_driver soc_codec_dev_ak4497 = {
706
+	.probe			= ak4458_probe,
707
+	.remove			= ak4458_remove,
708
+	.controls		= ak4497_snd_controls,
709
+	.num_controls		= ARRAY_SIZE(ak4497_snd_controls),
710
+	.dapm_widgets		= ak4497_dapm_widgets,
711
+	.num_dapm_widgets	= ARRAY_SIZE(ak4497_dapm_widgets),
712
+	.dapm_routes		= ak4497_intercon,
713
+	.num_dapm_routes	= ARRAY_SIZE(ak4497_intercon),
714
+	.idle_bias_on		= 1,
715
+	.use_pmdown_time	= 1,
716
+	.endianness		= 1,
717
+	.non_legacy_dai_naming	= 1,
718
+};
719
+
580720 static const struct regmap_config ak4458_regmap = {
581721 	.reg_bits = 8,
582722 	.val_bits = 8,
....@@ -585,6 +725,18 @@
585725 	.reg_defaults = ak4458_reg_defaults,
586726 	.num_reg_defaults = ARRAY_SIZE(ak4458_reg_defaults),
587727 	.cache_type = REGCACHE_RBTREE,
728
+};
729
+
730
+static const struct ak4458_drvdata ak4458_drvdata = {
731
+	.dai_drv = &ak4458_dai,
732
+	.comp_drv = &soc_codec_dev_ak4458,
733
+	.type = AK4458,
734
+};
735
+
736
+static const struct ak4458_drvdata ak4497_drvdata = {
737
+	.dai_drv = &ak4497_dai,
738
+	.comp_drv = &soc_codec_dev_ak4497,
739
+	.type = AK4497,
588740 };
589741 
590742 static const struct dev_pm_ops ak4458_pm = {
....@@ -596,7 +748,7 @@
596748 static int ak4458_i2c_probe(struct i2c_client *i2c)
597749 {
598750 	struct ak4458_priv *ak4458;
599
-	int ret;
751
+	int ret, i;
600752 
601753 	ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL);
602754 	if (!ak4458)
....@@ -609,6 +761,8 @@
609761 	i2c_set_clientdata(i2c, ak4458);
610762 	ak4458->dev = &i2c->dev;
611763 
764
+	ak4458->drvdata = of_device_get_match_data(&i2c->dev);
765
+
612766 	ak4458->reset_gpiod = devm_gpiod_get_optional(ak4458->dev, "reset",
613767 						      GPIOD_OUT_LOW);
614768 	if (IS_ERR(ak4458->reset_gpiod))
....@@ -619,14 +773,29 @@
619773 	if (IS_ERR(ak4458->mute_gpiod))
620774 		return PTR_ERR(ak4458->mute_gpiod);
621775 
622
-	ret = devm_snd_soc_register_component(ak4458->dev, &soc_codec_dev_ak4458,
623
-				     &ak4458_dai, 1);
776
+	/* Optional property for ak4497 */
777
+	of_property_read_u32(i2c->dev.of_node, "dsd-path", &ak4458->dsd_path);
778
+
779
+	for (i = 0; i < ARRAY_SIZE(ak4458->supplies); i++)
780
+		ak4458->supplies[i].supply = ak4458_supply_names[i];
781
+
782
+	ret = devm_regulator_bulk_get(ak4458->dev, ARRAY_SIZE(ak4458->supplies),
783
+				      ak4458->supplies);
784
+	if (ret != 0) {
785
+		dev_err(ak4458->dev, "Failed to request supplies: %d\n", ret);
786
+		return ret;
787
+	}
788
+
789
+	ret = devm_snd_soc_register_component(ak4458->dev,
790
+					      ak4458->drvdata->comp_drv,
791
+					      ak4458->drvdata->dai_drv, 1);
624792 	if (ret < 0) {
625793 		dev_err(ak4458->dev, "Failed to register CODEC: %d\n", ret);
626794 		return ret;
627795 	}
628796 
629797 	pm_runtime_enable(&i2c->dev);
798
+	regcache_cache_only(ak4458->regmap, true);
630799 
631800 	return 0;
632801 }
....@@ -639,7 +808,8 @@
639808 }
640809 
641810 static const struct of_device_id ak4458_of_match[] = {
642
-	{ .compatible = "asahi-kasei,ak4458", },
811
+	{ .compatible = "asahi-kasei,ak4458", .data = &ak4458_drvdata},
812
+	{ .compatible = "asahi-kasei,ak4497", .data = &ak4497_drvdata},
643813 	{ },
644814 };
645815 MODULE_DEVICE_TABLE(of, ak4458_of_match);