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author | Mike Rapoport <mike@compulab.co.il> | 2008-05-26 12:59:16 +0300 |
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committer | Takashi Iwai <tiwai@suse.de> | 2008-05-27 15:56:21 +0200 |
commit | 142054a389ebf7972b4eee822ad7c55ff852b649 (patch) | |
tree | 4400be813aab019f1c72dd67000b414dda5f1b3d /sound/soc/pxa/em-x270.c | |
parent | 62cf872a8eec1f11aacbec0ac3fe3698bfa9b403 (diff) | |
download | linux-stable-142054a389ebf7972b4eee822ad7c55ff852b649.tar.gz linux-stable-142054a389ebf7972b4eee822ad7c55ff852b649.tar.bz2 linux-stable-142054a389ebf7972b4eee822ad7c55ff852b649.zip |
[ALSA] Add EM-X270 ASoC driver
This patch adds ASoC support for EM-X270 machine.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/soc/pxa/em-x270.c')
-rw-r--r-- | sound/soc/pxa/em-x270.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/sound/soc/pxa/em-x270.c b/sound/soc/pxa/em-x270.c new file mode 100644 index 000000000000..02dcac39cdf6 --- /dev/null +++ b/sound/soc/pxa/em-x270.c @@ -0,0 +1,102 @@ +/* + * em-x270.c -- SoC audio for EM-X270 + * + * Copyright 2007 CompuLab, Ltd. + * + * Author: Mike Rapoport <mike@compulab.co.il> + * + * Copied from tosa.c: + * Copyright 2005 Wolfson Microelectronics PLC. + * Copyright 2005 Openedhand Ltd. + * + * Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com> + * Richard Purdie <richard@openedhand.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/device.h> + +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> + +#include <asm/mach-types.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/hardware.h> +#include <asm/arch/audio.h> + +#include "../codecs/wm9712.h" +#include "pxa2xx-pcm.h" +#include "pxa2xx-ac97.h" + +static struct snd_soc_dai_link em_x270_dai[] = { + { + .name = "AC97", + .stream_name = "AC97 HiFi", + .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], + .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI], + }, + { + .name = "AC97 Aux", + .stream_name = "AC97 Aux", + .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX], + .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX], + }, +}; + +static struct snd_soc_machine em_x270 = { + .name = "EM-X270", + .dai_link = em_x270_dai, + .num_links = ARRAY_SIZE(em_x270_dai), +}; + +static struct snd_soc_device em_x270_snd_devdata = { + .machine = &em_x270, + .platform = &pxa2xx_soc_platform, + .codec_dev = &soc_codec_dev_wm9712, +}; + +static struct platform_device *em_x270_snd_device; + +static int __init em_x270_init(void) +{ + int ret; + + if (!machine_is_em_x270()) + return -ENODEV; + + em_x270_snd_device = platform_device_alloc("soc-audio", -1); + if (!em_x270_snd_device) + return -ENOMEM; + + platform_set_drvdata(em_x270_snd_device, &em_x270_snd_devdata); + em_x270_snd_devdata.dev = &em_x270_snd_device->dev; + ret = platform_device_add(em_x270_snd_device); + + if (ret) + platform_device_put(em_x270_snd_device); + + return ret; +} + +static void __exit em_x270_exit(void) +{ + platform_device_unregister(em_x270_snd_device); +} + +module_init(em_x270_init); +module_exit(em_x270_exit); + +/* Module information */ +MODULE_AUTHOR("Mike Rapoport"); +MODULE_DESCRIPTION("ALSA SoC EM-X270"); +MODULE_LICENSE("GPL"); |