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/*
* ASoC HDMI Transmitter driver for IMX development boards
*
* Copyright (C) 2011-2012 Freescale Semiconductor, Inc.
*
* based on stmp3780_devb_spdif.c
*
* Vladimir Barinov <vbarinov@embeddedalley.com>
*
* Copyright 2008 SigmaTel, Inc
* Copyright 2008 Embedded Alley Solutions, Inc
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/io.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/dma.h>
#include <mach/hardware.h>
#include <mach/mxc_hdmi.h>
#include <linux/mfd/mxc-hdmi-core.h>
#include "imx-hdmi.h"
/* imx digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link imx_hdmi_dai_link = {
.name = "IMX HDMI TX",
.stream_name = "IMX HDMI TX",
.codec_dai_name = "mxc-hdmi-soc",
.codec_name = "mxc_hdmi_soc.0",
.cpu_dai_name = "imx-hdmi-soc-dai.0",
.platform_name = "imx-hdmi-soc-audio.0",
};
static struct snd_soc_card snd_soc_card_imx_hdmi = {
.name = "imx-hdmi-soc",
.dai_link = &imx_hdmi_dai_link,
.num_links = 1,
};
static struct platform_device *imx_hdmi_snd_device;
static int __init imx_hdmi_init(void)
{
int ret = 0;
if (!hdmi_get_registered())
return -ENOMEM;
imx_hdmi_snd_device = platform_device_alloc("soc-audio", 4);
if (!imx_hdmi_snd_device) {
pr_err("%s - failed platform_device_alloc\n", __func__);
return -ENOMEM;
}
platform_set_drvdata(imx_hdmi_snd_device, &snd_soc_card_imx_hdmi);
ret = platform_device_add(imx_hdmi_snd_device);
if (ret) {
pr_err("ASoC HDMI TX: Platform device allocation failed\n");
platform_device_put(imx_hdmi_snd_device);
}
return ret;
}
static void __exit imx_hdmi_exit(void)
{
platform_device_unregister(imx_hdmi_snd_device);
}
module_init(imx_hdmi_init);
module_exit(imx_hdmi_exit);
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
MODULE_DESCRIPTION("IMX HDMI TX ASoC driver");
MODULE_LICENSE("GPL");
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