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Diffstat (limited to 'sound/soc/codecs/cs4271.c')
-rw-r--r--sound/soc/codecs/cs4271.c63
1 files changed, 41 insertions, 22 deletions
diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c
index ce05fd93dc74..aef4965750c7 100644
--- a/sound/soc/codecs/cs4271.c
+++ b/sound/soc/codecs/cs4271.c
@@ -159,7 +159,6 @@ static bool cs4271_volatile_reg(struct device *dev, unsigned int reg)
159} 159}
160 160
161struct cs4271_private { 161struct cs4271_private {
162 /* SND_SOC_I2C or SND_SOC_SPI */
163 unsigned int mclk; 162 unsigned int mclk;
164 bool master; 163 bool master;
165 bool deemph; 164 bool deemph;
@@ -540,14 +539,10 @@ static int cs4271_probe(struct snd_soc_codec *codec)
540 struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec); 539 struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
541 struct cs4271_platform_data *cs4271plat = codec->dev->platform_data; 540 struct cs4271_platform_data *cs4271plat = codec->dev->platform_data;
542 int ret; 541 int ret;
543 int gpio_nreset = -EINVAL;
544 bool amutec_eq_bmutec = false; 542 bool amutec_eq_bmutec = false;
545 543
546#ifdef CONFIG_OF 544#ifdef CONFIG_OF
547 if (of_match_device(cs4271_dt_ids, codec->dev)) { 545 if (of_match_device(cs4271_dt_ids, codec->dev)) {
548 gpio_nreset = of_get_named_gpio(codec->dev->of_node,
549 "reset-gpio", 0);
550
551 if (of_get_property(codec->dev->of_node, 546 if (of_get_property(codec->dev->of_node,
552 "cirrus,amutec-eq-bmutec", NULL)) 547 "cirrus,amutec-eq-bmutec", NULL))
553 amutec_eq_bmutec = true; 548 amutec_eq_bmutec = true;
@@ -559,27 +554,19 @@ static int cs4271_probe(struct snd_soc_codec *codec)
559#endif 554#endif
560 555
561 if (cs4271plat) { 556 if (cs4271plat) {
562 if (gpio_is_valid(cs4271plat->gpio_nreset))
563 gpio_nreset = cs4271plat->gpio_nreset;
564
565 amutec_eq_bmutec = cs4271plat->amutec_eq_bmutec; 557 amutec_eq_bmutec = cs4271plat->amutec_eq_bmutec;
566 cs4271->enable_soft_reset = cs4271plat->enable_soft_reset; 558 cs4271->enable_soft_reset = cs4271plat->enable_soft_reset;
567 } 559 }
568 560
569 if (gpio_nreset >= 0) 561 if (gpio_is_valid(cs4271->gpio_nreset)) {
570 if (devm_gpio_request(codec->dev, gpio_nreset, "CS4271 Reset"))
571 gpio_nreset = -EINVAL;
572 if (gpio_nreset >= 0) {
573 /* Reset codec */ 562 /* Reset codec */
574 gpio_direction_output(gpio_nreset, 0); 563 gpio_direction_output(cs4271->gpio_nreset, 0);
575 udelay(1); 564 udelay(1);
576 gpio_set_value(gpio_nreset, 1); 565 gpio_set_value(cs4271->gpio_nreset, 1);
577 /* Give the codec time to wake up */ 566 /* Give the codec time to wake up */
578 udelay(1); 567 udelay(1);
579 } 568 }
580 569
581 cs4271->gpio_nreset = gpio_nreset;
582
583 ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2, 570 ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2,
584 CS4271_MODE2_PDN | CS4271_MODE2_CPEN, 571 CS4271_MODE2_PDN | CS4271_MODE2_CPEN,
585 CS4271_MODE2_PDN | CS4271_MODE2_CPEN); 572 CS4271_MODE2_PDN | CS4271_MODE2_CPEN);
@@ -625,6 +612,36 @@ static struct snd_soc_codec_driver soc_codec_dev_cs4271 = {
625 .num_dapm_routes = ARRAY_SIZE(cs4271_dapm_routes), 612 .num_dapm_routes = ARRAY_SIZE(cs4271_dapm_routes),
626}; 613};
627 614
615static int cs4271_common_probe(struct device *dev,
616 struct cs4271_private **c)
617{
618 struct cs4271_platform_data *cs4271plat = dev->platform_data;
619 struct cs4271_private *cs4271;
620
621 cs4271 = devm_kzalloc(dev, sizeof(*cs4271), GFP_KERNEL);
622 if (!cs4271)
623 return -ENOMEM;
624
625 if (of_match_device(cs4271_dt_ids, dev))
626 cs4271->gpio_nreset =
627 of_get_named_gpio(dev->of_node, "reset-gpio", 0);
628
629 if (cs4271plat)
630 cs4271->gpio_nreset = cs4271plat->gpio_nreset;
631
632 if (gpio_is_valid(cs4271->gpio_nreset)) {
633 int ret;
634
635 ret = devm_gpio_request(dev, cs4271->gpio_nreset,
636 "CS4271 Reset");
637 if (ret < 0)
638 return ret;
639 }
640
641 *c = cs4271;
642 return 0;
643}
644
628#if defined(CONFIG_SPI_MASTER) 645#if defined(CONFIG_SPI_MASTER)
629 646
630static const struct regmap_config cs4271_spi_regmap = { 647static const struct regmap_config cs4271_spi_regmap = {
@@ -644,10 +661,11 @@ static const struct regmap_config cs4271_spi_regmap = {
644static int cs4271_spi_probe(struct spi_device *spi) 661static int cs4271_spi_probe(struct spi_device *spi)
645{ 662{
646 struct cs4271_private *cs4271; 663 struct cs4271_private *cs4271;
664 int ret;
647 665
648 cs4271 = devm_kzalloc(&spi->dev, sizeof(*cs4271), GFP_KERNEL); 666 ret = cs4271_common_probe(&spi->dev, &cs4271);
649 if (!cs4271) 667 if (ret < 0)
650 return -ENOMEM; 668 return ret;
651 669
652 spi_set_drvdata(spi, cs4271); 670 spi_set_drvdata(spi, cs4271);
653 cs4271->regmap = devm_regmap_init_spi(spi, &cs4271_spi_regmap); 671 cs4271->regmap = devm_regmap_init_spi(spi, &cs4271_spi_regmap);
@@ -698,10 +716,11 @@ static int cs4271_i2c_probe(struct i2c_client *client,
698 const struct i2c_device_id *id) 716 const struct i2c_device_id *id)
699{ 717{
700 struct cs4271_private *cs4271; 718 struct cs4271_private *cs4271;
719 int ret;
701 720
702 cs4271 = devm_kzalloc(&client->dev, sizeof(*cs4271), GFP_KERNEL); 721 ret = cs4271_common_probe(&client->dev, &cs4271);
703 if (!cs4271) 722 if (ret < 0)
704 return -ENOMEM; 723 return ret;
705 724
706 i2c_set_clientdata(client, cs4271); 725 i2c_set_clientdata(client, cs4271);
707 cs4271->regmap = devm_regmap_init_i2c(client, &cs4271_i2c_regmap); 726 cs4271->regmap = devm_regmap_init_i2c(client, &cs4271_i2c_regmap);