[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>
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@ -62,3 +62,12 @@ config SND_PXA2XX_SOC_E800
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help
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Say Y if you want to add support for SoC audio on the
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Toshiba e800 PDA
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config SND_PXA2XX_SOC_EM_X270
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tristate "SoC Audio support for CompuLab EM-x270"
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depends on SND_PXA2XX_SOC && MACH_EM_X270
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select SND_PXA2XX_SOC_AC97
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select SND_SOC_WM9712
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help
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Say Y if you want to add support for SoC audio on
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CompuLab EM-x270.
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@ -13,10 +13,11 @@ snd-soc-poodle-objs := poodle.o
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snd-soc-tosa-objs := tosa.o
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snd-soc-e800-objs := e800_wm9712.o
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snd-soc-spitz-objs := spitz.o
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snd-soc-em-x270-objs := em-x270.o
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obj-$(CONFIG_SND_PXA2XX_SOC_CORGI) += snd-soc-corgi.o
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obj-$(CONFIG_SND_PXA2XX_SOC_POODLE) += snd-soc-poodle.o
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obj-$(CONFIG_SND_PXA2XX_SOC_TOSA) += snd-soc-tosa.o
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obj-$(CONFIG_SND_PXA2XX_SOC_E800) += snd-soc-e800.o
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obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o
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obj-$(CONFIG_SND_PXA2XX_SOC_EM_X270) += snd-soc-em-x270.o
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102
sound/soc/pxa/em-x270.c
Normal file
102
sound/soc/pxa/em-x270.c
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@ -0,0 +1,102 @@
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/*
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* em-x270.c -- SoC audio for EM-X270
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*
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* Copyright 2007 CompuLab, Ltd.
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*
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* Author: Mike Rapoport <mike@compulab.co.il>
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*
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* Copied from tosa.c:
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* Copyright 2005 Wolfson Microelectronics PLC.
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* Copyright 2005 Openedhand Ltd.
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*
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* Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
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* Richard Purdie <richard@openedhand.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/device.h>
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#include <sound/driver.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <asm/mach-types.h>
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#include <asm/arch/pxa-regs.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/audio.h>
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#include "../codecs/wm9712.h"
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#include "pxa2xx-pcm.h"
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#include "pxa2xx-ac97.h"
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static struct snd_soc_dai_link em_x270_dai[] = {
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{
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.name = "AC97",
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.stream_name = "AC97 HiFi",
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.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
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.codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
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},
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{
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.name = "AC97 Aux",
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.stream_name = "AC97 Aux",
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.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
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.codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
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},
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};
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static struct snd_soc_machine em_x270 = {
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.name = "EM-X270",
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.dai_link = em_x270_dai,
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.num_links = ARRAY_SIZE(em_x270_dai),
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};
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static struct snd_soc_device em_x270_snd_devdata = {
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.machine = &em_x270,
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.platform = &pxa2xx_soc_platform,
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.codec_dev = &soc_codec_dev_wm9712,
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};
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static struct platform_device *em_x270_snd_device;
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static int __init em_x270_init(void)
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{
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int ret;
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if (!machine_is_em_x270())
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return -ENODEV;
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em_x270_snd_device = platform_device_alloc("soc-audio", -1);
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if (!em_x270_snd_device)
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return -ENOMEM;
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platform_set_drvdata(em_x270_snd_device, &em_x270_snd_devdata);
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em_x270_snd_devdata.dev = &em_x270_snd_device->dev;
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ret = platform_device_add(em_x270_snd_device);
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if (ret)
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platform_device_put(em_x270_snd_device);
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return ret;
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}
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static void __exit em_x270_exit(void)
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{
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platform_device_unregister(em_x270_snd_device);
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}
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module_init(em_x270_init);
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module_exit(em_x270_exit);
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/* Module information */
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MODULE_AUTHOR("Mike Rapoport");
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MODULE_DESCRIPTION("ALSA SoC EM-X270");
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MODULE_LICENSE("GPL");
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