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author | Marek Belisko <marek@goldelico.com> | 2015-06-20 22:47:01 +0200 |
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committer | Mark Brown <broonie@kernel.org> | 2015-07-06 21:29:43 +0200 |
commit | efc4720dfbf737903ca4c1366bc45ca780d13412 (patch) | |
tree | 3fa12d54b5fb3f8ba048671db8b3e78c181f25b8 /sound/soc/codecs/gtm601.c | |
parent | Linux 4.2-rc1 (diff) | |
download | linux-efc4720dfbf737903ca4c1366bc45ca780d13412.tar.xz linux-efc4720dfbf737903ca4c1366bc45ca780d13412.zip |
ASoC: Add gtm601 codec driver
This driver add PCM interface to a GTM601 UMTS modem chip.
There is no configuration interface.
Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/gtm601.c')
-rw-r--r-- | sound/soc/codecs/gtm601.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/sound/soc/codecs/gtm601.c b/sound/soc/codecs/gtm601.c new file mode 100644 index 000000000000..1b77ff2d6d14 --- /dev/null +++ b/sound/soc/codecs/gtm601.c @@ -0,0 +1,98 @@ +/* + * This is a simple driver for the GTM601 Voice PCM interface + * + * Copyright (C) 2015 Goldelico GmbH + * + * Author: Marek Belisko <marek@goldelico.com> + * + * Based on wm8727.c driver + * + * 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/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/ac97_codec.h> +#include <sound/initval.h> +#include <sound/soc.h> + +static const struct snd_soc_dapm_widget gtm601_dapm_widgets[] = { + SND_SOC_DAPM_OUTPUT("AOUT"), + SND_SOC_DAPM_INPUT("AIN"), +}; + +static const struct snd_soc_dapm_route gtm601_dapm_routes[] = { + { "AOUT", NULL, "Playback" }, + { "Capture", NULL, "AIN" }, +}; + +struct snd_soc_dai_driver gtm601_dai = { + .name = "gtm601", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 1, + .rates = SNDRV_PCM_RATE_8000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 1, + .rates = SNDRV_PCM_RATE_8000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, +}; + +static struct snd_soc_codec_driver soc_codec_dev_gtm601 = { + .dapm_widgets = gtm601_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(gtm601_dapm_widgets), + .dapm_routes = gtm601_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(gtm601_dapm_routes), +}; + +static int gtm601_platform_probe(struct platform_device *pdev) +{ + return snd_soc_register_codec(&pdev->dev, + &soc_codec_dev_gtm601, >m601_dai, 1); +} + +static int gtm601_platform_remove(struct platform_device *pdev) +{ + snd_soc_unregister_codec(&pdev->dev); + return 0; +} + +MODULE_ALIAS("platform:gtm601_codec_audio"); + +#if defined(CONFIG_OF) +static const struct of_device_id gtm601_codec_of_match[] = { + { .compatible = "option,gtm601", }, + {}, +}; +MODULE_DEVICE_TABLE(of, gtm601_codec_of_match); +#endif + +static struct platform_driver gtm601_codec_driver = { + .driver = { + .name = "gtm601", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(gtm601_codec_of_match), + }, + + .probe = gtm601_platform_probe, + .remove = gtm601_platform_remove, +}; + +module_platform_driver(gtm601_codec_driver); + +MODULE_DESCRIPTION("ASoC gtm601 driver"); +MODULE_AUTHOR("Marek Belisko <marek@goldelico.com>"); +MODULE_LICENSE("GPL"); |