diff options
Diffstat (limited to 'sound/soc/kirkwood/armada-370-db.c')
| -rw-r--r-- | sound/soc/kirkwood/armada-370-db.c | 156 |
1 files changed, 156 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 000000000..81326426d --- /dev/null +++ b/sound/soc/kirkwood/armada-370-db.c @@ -0,0 +1,156 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2014 Marvell + * + * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> + */ + +#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 = asoc_substream_to_rtd(substream); + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + 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 const 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" }, +}; + +SND_SOC_DAILINK_DEFS(analog, + DAILINK_COMP_ARRAY(COMP_CPU("i2s")), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42l51-hifi")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(spdif_out, + DAILINK_COMP_ARRAY(COMP_CPU("spdif")), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dit-hifi")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(spdif_in, + DAILINK_COMP_ARRAY(COMP_CPU("spdif")), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dir-hifi")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +static struct snd_soc_dai_link a370db_dai[] = { +{ + .name = "CS42L51", + .stream_name = "analog", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, + .ops = &a370db_ops, + SND_SOC_DAILINK_REG(analog), +}, +{ + .name = "S/PDIF out", + .stream_name = "spdif-out", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, + SND_SOC_DAILINK_REG(spdif_out), +}, +{ + .name = "S/PDIF in", + .stream_name = "spdif-in", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, + SND_SOC_DAILINK_REG(spdif_in), +}, +}; + +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].cpus->of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-controller", 0); + a370db_dai[0].platforms->of_node = a370db_dai[0].cpus->of_node; + + a370db_dai[0].codecs->of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-codec", 0); + + a370db_dai[1].cpus->of_node = a370db_dai[0].cpus->of_node; + a370db_dai[1].platforms->of_node = a370db_dai[0].cpus->of_node; + + a370db_dai[1].codecs->of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-codec", 1); + + a370db_dai[2].cpus->of_node = a370db_dai[0].cpus->of_node; + a370db_dai[2].platforms->of_node = a370db_dai[0].cpus->of_node; + + a370db_dai[2].codecs->of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-codec", 2); + + return devm_snd_soc_register_card(card->dev, card); +} + +static const struct of_device_id a370db_dt_ids[] __maybe_unused = { + { .compatible = "marvell,a370db-audio" }, + { }, +}; +MODULE_DEVICE_TABLE(of, a370db_dt_ids); + +static struct platform_driver a370db_driver = { + .driver = { + .name = "a370db-audio", + .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"); |