diff options
Diffstat (limited to 'sound/soc/kirkwood/armada-370-db.c')
| -rw-r--r-- | sound/soc/kirkwood/armada-370-db.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/sound/soc/kirkwood/armada-370-db.c b/sound/soc/kirkwood/armada-370-db.c new file mode 100644 index 000000000000..977639b3ffde --- /dev/null +++ b/sound/soc/kirkwood/armada-370-db.c @@ -0,0 +1,120 @@ +/* + * Copyright (C) 2014 Marvell + * + * Thomas Petazzoni <thomas.petazzoni@free-electrons.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; either version 2 of the + * License, or (at your option) any later version. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <sound/soc.h> +#include <linux/of.h> +#include <linux/platform_data/asoc-kirkwood.h> +#include "../codecs/cs42l51.h" + +static int a370db_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; + unsigned int freq; + + switch (params_rate(params)) { + default: + case 44100: + freq = 11289600; + break; + case 48000: + freq = 12288000; + break; + case 96000: + freq = 24576000; + break; + } + + return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN); +} + +static struct snd_soc_ops a370db_ops = { + .hw_params = a370db_hw_params, +}; + +static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = { + SND_SOC_DAPM_HP("Out Jack", NULL), + SND_SOC_DAPM_LINE("In Jack", NULL), +}; + +static const struct snd_soc_dapm_route a370db_route[] = { + { "Out Jack", NULL, "HPL" }, + { "Out Jack", NULL, "HPR" }, + { "AIN1L", NULL, "In Jack" }, + { "AIN1L", NULL, "In Jack" }, +}; + +static struct snd_soc_dai_link a370db_dai[] = { +{ + .name = "CS42L51", + .stream_name = "analog", + .cpu_dai_name = "i2s", + .codec_dai_name = "cs42l51-hifi", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, + .ops = &a370db_ops, +}, +}; + +static struct snd_soc_card a370db = { + .name = "a370db", + .owner = THIS_MODULE, + .dai_link = a370db_dai, + .num_links = ARRAY_SIZE(a370db_dai), + .dapm_widgets = a370db_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets), + .dapm_routes = a370db_route, + .num_dapm_routes = ARRAY_SIZE(a370db_route), +}; + +static int a370db_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &a370db; + + card->dev = &pdev->dev; + + a370db_dai[0].cpu_of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-controller", 0); + a370db_dai[0].platform_of_node = a370db_dai[0].cpu_of_node; + + a370db_dai[0].codec_of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-codec", 0); + + return devm_snd_soc_register_card(card->dev, card); +} + +static const struct of_device_id a370db_dt_ids[] = { + { .compatible = "marvell,a370db-audio" }, + { }, +}; + +static struct platform_driver a370db_driver = { + .driver = { + .name = "a370db-audio", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(a370db_dt_ids), + }, + .probe = a370db_probe, +}; + +module_platform_driver(a370db_driver); + +MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>"); +MODULE_DESCRIPTION("ALSA SoC a370db audio client"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:a370db-audio"); |