mirror of
https://github.com/torvalds/linux.git
synced 2024-11-30 16:11:38 +00:00
6aff8ccb0c
Add missing .owner of struct snd_soc_card. This prevents the module from being removed from underneath its users. Reported-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
133 lines
3.5 KiB
C
133 lines
3.5 KiB
C
/*
|
|
* eukrea-tlv320.c -- SoC audio for eukrea_cpuimxXX in I2S mode
|
|
*
|
|
* Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com>
|
|
*
|
|
* based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c
|
|
* which is Copyright 2009 Simtec Electronics
|
|
* and on sound/soc/imx/phycore-ac97.c which is
|
|
* Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
|
|
*
|
|
* 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 <linux/i2c.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
#include "../codecs/tlv320aic23.h"
|
|
#include "imx-ssi.h"
|
|
|
|
#define CODEC_CLOCK 12000000
|
|
|
|
static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
struct snd_soc_dai *codec_dai = rtd->codec_dai;
|
|
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
|
|
int ret;
|
|
|
|
ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
|
|
SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret) {
|
|
pr_err("%s: failed set cpu dai format\n", __func__);
|
|
return ret;
|
|
}
|
|
|
|
ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
|
|
SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret) {
|
|
pr_err("%s: failed set codec dai format\n", __func__);
|
|
return ret;
|
|
}
|
|
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, 0,
|
|
CODEC_CLOCK, SND_SOC_CLOCK_OUT);
|
|
if (ret) {
|
|
pr_err("%s: failed setting codec sysclk\n", __func__);
|
|
return ret;
|
|
}
|
|
snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);
|
|
|
|
ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
|
|
SND_SOC_CLOCK_IN);
|
|
if (ret) {
|
|
pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_ops eukrea_tlv320_snd_ops = {
|
|
.hw_params = eukrea_tlv320_hw_params,
|
|
};
|
|
|
|
static struct snd_soc_dai_link eukrea_tlv320_dai = {
|
|
.name = "tlv320aic23",
|
|
.stream_name = "TLV320AIC23",
|
|
.codec_dai_name = "tlv320aic23-hifi",
|
|
.platform_name = "imx-fiq-pcm-audio.0",
|
|
.codec_name = "tlv320aic23-codec.0-001a",
|
|
.cpu_dai_name = "imx-ssi.0",
|
|
.ops = &eukrea_tlv320_snd_ops,
|
|
};
|
|
|
|
static struct snd_soc_card eukrea_tlv320 = {
|
|
.name = "cpuimx-audio",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = &eukrea_tlv320_dai,
|
|
.num_links = 1,
|
|
};
|
|
|
|
static struct platform_device *eukrea_tlv320_snd_device;
|
|
|
|
static int __init eukrea_tlv320_init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (!machine_is_eukrea_cpuimx27() && !machine_is_eukrea_cpuimx25sd()
|
|
&& !machine_is_eukrea_cpuimx35sd()
|
|
&& !machine_is_eukrea_cpuimx51sd())
|
|
/* return happy. We might run on a totally different machine */
|
|
return 0;
|
|
|
|
eukrea_tlv320_snd_device = platform_device_alloc("soc-audio", -1);
|
|
if (!eukrea_tlv320_snd_device)
|
|
return -ENOMEM;
|
|
|
|
platform_set_drvdata(eukrea_tlv320_snd_device, &eukrea_tlv320);
|
|
ret = platform_device_add(eukrea_tlv320_snd_device);
|
|
|
|
if (ret) {
|
|
printk(KERN_ERR "ASoC: Platform device allocation failed\n");
|
|
platform_device_put(eukrea_tlv320_snd_device);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void __exit eukrea_tlv320_exit(void)
|
|
{
|
|
platform_device_unregister(eukrea_tlv320_snd_device);
|
|
}
|
|
|
|
module_init(eukrea_tlv320_init);
|
|
module_exit(eukrea_tlv320_exit);
|
|
|
|
MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>");
|
|
MODULE_DESCRIPTION("CPUIMX ALSA SoC driver");
|
|
MODULE_LICENSE("GPL");
|