projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 74d04c3e TP |
1 | /* |
| 2 | * Copyright (C) 2014 Marvell | |
| 3 | * | |
| 4 | * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License as | |
| 8 | * published by the Free Software Foundation; either version 2 of the | |
| 9 | * License, or (at your option) any later version. | |
| 10 | */ | |
| 11 | ||
| 12 | #include <linux/module.h> | |
| 13 | #include <linux/moduleparam.h> | |
| 14 | #include <linux/interrupt.h> | |
| 15 | #include <linux/platform_device.h> | |
| 16 | #include <linux/slab.h> | |
| 17 | #include <sound/soc.h> | |
| 18 | #include <linux/of.h> | |
| 19 | #include <linux/platform_data/asoc-kirkwood.h> | |
| 20 | #include "../codecs/cs42l51.h" | |
| 21 | ||
| 22 | static int a370db_hw_params(struct snd_pcm_substream *substream, | |
| 23 | struct snd_pcm_hw_params *params) | |
| 24 | { | |
| 25 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
| 26 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
| 27 | unsigned int freq; | |
| 28 | ||
| 29 | switch (params_rate(params)) { | |
| 30 | default: | |
| 31 | case 44100: | |
| 32 | freq = 11289600; | |
| 33 | break; | |
| 34 | case 48000: | |
| 35 | freq = 12288000; | |
| 36 | break; | |
| 37 | case 96000: | |
| 38 | freq = 24576000; | |
| 39 | break; | |
| 40 | } | |
| 41 | ||
| 42 | return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN); | |
| 43 | } | |
| 44 | ||
| 45 | static struct snd_soc_ops a370db_ops = { | |
| 46 | .hw_params = a370db_hw_params, | |
| 47 | }; | |
| 48 | ||
| 49 | static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = { | |
| 50 | SND_SOC_DAPM_HP("Out Jack", NULL), | |
| 51 | SND_SOC_DAPM_LINE("In Jack", NULL), | |
| 52 | }; | |
| 53 | ||
| 54 | static const struct snd_soc_dapm_route a370db_route[] = { | |
| 55 | { "Out Jack", NULL, "HPL" }, | |
| 56 | { "Out Jack", NULL, "HPR" }, | |
| 57 | { "AIN1L", NULL, "In Jack" }, | |
| 58 | { "AIN1L", NULL, "In Jack" }, | |
| 59 | }; | |
| 60 | ||
| 61 | static struct snd_soc_dai_link a370db_dai[] = { | |
| 62 | { | |
| 63 | .name = "CS42L51", | |
| 64 | .stream_name = "analog", | |
| 65 | .cpu_dai_name = "i2s", | |
| 66 | .codec_dai_name = "cs42l51-hifi", | |
| 67 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, | |
| 68 | .ops = &a370db_ops, | |
| 69 | }, | |
| 70 | }; | |
| 71 | ||
| 72 | static struct snd_soc_card a370db = { | |
| 73 | .name = "a370db", | |
| 74 | .owner = THIS_MODULE, | |
| 75 | .dai_link = a370db_dai, | |
| 76 | .num_links = ARRAY_SIZE(a370db_dai), | |
| 77 | .dapm_widgets = a370db_dapm_widgets, | |
| 78 | .num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets), | |
| 79 | .dapm_routes = a370db_route, | |
| 80 | .num_dapm_routes = ARRAY_SIZE(a370db_route), | |
| 81 | }; | |
| 82 | ||
| 83 | static int a370db_probe(struct platform_device *pdev) | |
| 84 | { | |
| 85 | struct snd_soc_card *card = &a370db; | |
| 86 | ||
| 87 | card->dev = &pdev->dev; | |
| 88 | ||
| 89 | a370db_dai[0].cpu_of_node = | |
| 90 | of_parse_phandle(pdev->dev.of_node, | |
| 91 | "marvell,audio-controller", 0); | |
| 92 | a370db_dai[0].platform_of_node = a370db_dai[0].cpu_of_node; | |
| 93 | ||
| 94 | a370db_dai[0].codec_of_node = | |
| 95 | of_parse_phandle(pdev->dev.of_node, | |
| 96 | "marvell,audio-codec", 0); | |
| 97 | ||
| 98 | return devm_snd_soc_register_card(card->dev, card); | |
| 99 | } | |
| 100 | ||
| 101 | static const struct of_device_id a370db_dt_ids[] = { | |
| 102 | { .compatible = "marvell,a370db-audio" }, | |
| 103 | { }, | |
| 104 | }; | |
| 105 | ||
| 106 | static struct platform_driver a370db_driver = { | |
| 107 | .driver = { | |
| 108 | .name = "a370db-audio", | |
| 109 | .owner = THIS_MODULE, | |
| 110 | .of_match_table = of_match_ptr(a370db_dt_ids), | |
| 111 | }, | |
| 112 | .probe = a370db_probe, | |
| 113 | }; | |
| 114 | ||
| 115 | module_platform_driver(a370db_driver); | |
| 116 | ||
| 117 | MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>"); | |
| 118 | MODULE_DESCRIPTION("ALSA SoC a370db audio client"); | |
| 119 | MODULE_LICENSE("GPL"); | |
| 120 | MODULE_ALIAS("platform:a370db-audio"); |