diff options
author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2013-07-03 21:15:13 -0700 |
---|---|---|
committer | Mark Brown <broonie@linaro.org> | 2013-07-15 11:05:22 +0100 |
commit | a2911cdb1fd09de7c0da3938ffab1bc5cedda4f9 (patch) | |
tree | 27a3fa0140bd8e0e9ba3bf5f0aef972a4914513f /sound/soc/codecs/ak4554.c | |
parent | ad81f0545ef01ea651886dddac4bef6cec930092 (diff) | |
download | linux-stable-a2911cdb1fd09de7c0da3938ffab1bc5cedda4f9.tar.gz linux-stable-a2911cdb1fd09de7c0da3938ffab1bc5cedda4f9.tar.bz2 linux-stable-a2911cdb1fd09de7c0da3938ffab1bc5cedda4f9.zip |
ASoC: add ak4554 driver
ak4554 is very simple DA/AD converter which has no setting register.
Note that it has hard coded asymmetric data format
playback : SND_SOC_DAIFMT_RIGHT_J
capture : SND_SOC_DAIFMT_LEFT_J
This driver has single DAI and doesn't have set_fmt.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/codecs/ak4554.c')
-rw-r--r-- | sound/soc/codecs/ak4554.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/sound/soc/codecs/ak4554.c b/sound/soc/codecs/ak4554.c new file mode 100644 index 000000000000..c1a1733f8a35 --- /dev/null +++ b/sound/soc/codecs/ak4554.c @@ -0,0 +1,79 @@ +/* + * ak4554.c + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <sound/soc.h> + +/* + * ak4554 is very simple DA/AD converter which has no setting register. + * + * CAUTION + * + * ak4554 playback format is SND_SOC_DAIFMT_RIGHT_J, + * and, capture format is SND_SOC_DAIFMT_LEFT_J + * on same bit clock, LR clock. + * But, this driver doesn't have snd_soc_dai_ops :: set_fmt + * + * CPU/Codec DAI image + * + * CPU-DAI1 (plaback only fmt = RIGHT_J) --+-- ak4554 + * | + * CPU-DAI2 (capture only fmt = LEFT_J) ---+ + */ + +static struct snd_soc_dai_driver ak4554_dai = { + .name = "ak4554-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .symmetric_rates = 1, +}; + +static struct snd_soc_codec_driver soc_codec_dev_ak4554 = { +}; + +static int ak4554_soc_probe(struct platform_device *pdev) +{ + return snd_soc_register_codec(&pdev->dev, + &soc_codec_dev_ak4554, + &ak4554_dai, 1); +} + +static int ak4554_soc_remove(struct platform_device *pdev) +{ + snd_soc_unregister_codec(&pdev->dev); + return 0; +} + +static struct platform_driver ak4554_driver = { + .driver = { + .name = "ak4554-adc-dac", + .owner = THIS_MODULE, + }, + .probe = ak4554_soc_probe, + .remove = ak4554_soc_remove, +}; +module_platform_driver(ak4554_driver); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("SoC AK4554 driver"); +MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |