armada-370-db.c 4.0 KB

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * Copyright (C) 2014 Marvell
  4. *
  5. * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
  6. */
  7. #include <linux/module.h>
  8. #include <linux/moduleparam.h>
  9. #include <linux/interrupt.h>
  10. #include <linux/platform_device.h>
  11. #include <linux/slab.h>
  12. #include <sound/soc.h>
  13. #include <linux/of.h>
  14. #include <linux/platform_data/asoc-kirkwood.h>
  15. #include "../codecs/cs42l51.h"
  16. static int a370db_hw_params(struct snd_pcm_substream *substream,
  17. struct snd_pcm_hw_params *params)
  18. {
  19. struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
  20. struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  21. unsigned int freq;
  22. switch (params_rate(params)) {
  23. default:
  24. case 44100:
  25. freq = 11289600;
  26. break;
  27. case 48000:
  28. freq = 12288000;
  29. break;
  30. case 96000:
  31. freq = 24576000;
  32. break;
  33. }
  34. return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
  35. }
  36. static const struct snd_soc_ops a370db_ops = {
  37. .hw_params = a370db_hw_params,
  38. };
  39. static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = {
  40. SND_SOC_DAPM_HP("Out Jack", NULL),
  41. SND_SOC_DAPM_LINE("In Jack", NULL),
  42. };
  43. static const struct snd_soc_dapm_route a370db_route[] = {
  44. { "Out Jack", NULL, "HPL" },
  45. { "Out Jack", NULL, "HPR" },
  46. { "AIN1L", NULL, "In Jack" },
  47. { "AIN1L", NULL, "In Jack" },
  48. };
  49. SND_SOC_DAILINK_DEFS(analog,
  50. DAILINK_COMP_ARRAY(COMP_CPU("i2s")),
  51. DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42l51-hifi")),
  52. DAILINK_COMP_ARRAY(COMP_EMPTY()));
  53. SND_SOC_DAILINK_DEFS(spdif_out,
  54. DAILINK_COMP_ARRAY(COMP_CPU("spdif")),
  55. DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dit-hifi")),
  56. DAILINK_COMP_ARRAY(COMP_EMPTY()));
  57. SND_SOC_DAILINK_DEFS(spdif_in,
  58. DAILINK_COMP_ARRAY(COMP_CPU("spdif")),
  59. DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dir-hifi")),
  60. DAILINK_COMP_ARRAY(COMP_EMPTY()));
  61. static struct snd_soc_dai_link a370db_dai[] = {
  62. {
  63. .name = "CS42L51",
  64. .stream_name = "analog",
  65. .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
  66. .ops = &a370db_ops,
  67. SND_SOC_DAILINK_REG(analog),
  68. },
  69. {
  70. .name = "S/PDIF out",
  71. .stream_name = "spdif-out",
  72. .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
  73. SND_SOC_DAILINK_REG(spdif_out),
  74. },
  75. {
  76. .name = "S/PDIF in",
  77. .stream_name = "spdif-in",
  78. .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
  79. SND_SOC_DAILINK_REG(spdif_in),
  80. },
  81. };
  82. static struct snd_soc_card a370db = {
  83. .name = "a370db",
  84. .owner = THIS_MODULE,
  85. .dai_link = a370db_dai,
  86. .num_links = ARRAY_SIZE(a370db_dai),
  87. .dapm_widgets = a370db_dapm_widgets,
  88. .num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets),
  89. .dapm_routes = a370db_route,
  90. .num_dapm_routes = ARRAY_SIZE(a370db_route),
  91. };
  92. static int a370db_probe(struct platform_device *pdev)
  93. {
  94. struct snd_soc_card *card = &a370db;
  95. card->dev = &pdev->dev;
  96. a370db_dai[0].cpus->of_node =
  97. of_parse_phandle(pdev->dev.of_node,
  98. "marvell,audio-controller", 0);
  99. a370db_dai[0].platforms->of_node = a370db_dai[0].cpus->of_node;
  100. a370db_dai[0].codecs->of_node =
  101. of_parse_phandle(pdev->dev.of_node,
  102. "marvell,audio-codec", 0);
  103. a370db_dai[1].cpus->of_node = a370db_dai[0].cpus->of_node;
  104. a370db_dai[1].platforms->of_node = a370db_dai[0].cpus->of_node;
  105. a370db_dai[1].codecs->of_node =
  106. of_parse_phandle(pdev->dev.of_node,
  107. "marvell,audio-codec", 1);
  108. a370db_dai[2].cpus->of_node = a370db_dai[0].cpus->of_node;
  109. a370db_dai[2].platforms->of_node = a370db_dai[0].cpus->of_node;
  110. a370db_dai[2].codecs->of_node =
  111. of_parse_phandle(pdev->dev.of_node,
  112. "marvell,audio-codec", 2);
  113. return devm_snd_soc_register_card(card->dev, card);
  114. }
  115. static const struct of_device_id a370db_dt_ids[] = {
  116. { .compatible = "marvell,a370db-audio" },
  117. { },
  118. };
  119. MODULE_DEVICE_TABLE(of, a370db_dt_ids);
  120. static struct platform_driver a370db_driver = {
  121. .driver = {
  122. .name = "a370db-audio",
  123. .of_match_table = of_match_ptr(a370db_dt_ids),
  124. },
  125. .probe = a370db_probe,
  126. };
  127. module_platform_driver(a370db_driver);
  128. MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
  129. MODULE_DESCRIPTION("ALSA SoC a370db audio client");
  130. MODULE_LICENSE("GPL");
  131. MODULE_ALIAS("platform:a370db-audio");