[net-next-2.6.git] / sound / soc / blackfin / bf5xx-i2s.c

/*
 * File:         sound/soc/blackfin/bf5xx-i2s.c
 * Author:       Cliff Cai <Cliff.Cai@analog.com>
 *
 * Created:      Tue June 06 2008
 * Description:  Blackfin I2S CPU DAI driver
 *
 * Modified:
 *               Copyright 2008 Analog Devices Inc.
 *
 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see the file COPYING, or write
 * to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc.h>

#include <asm/irq.h>
#include <asm/portmux.h>
#include <linux/mutex.h>
#include <linux/gpio.h>

#include "bf5xx-sport.h"
#include "bf5xx-i2s.h"

struct bf5xx_i2s_port {
	u16 tcr1;
	u16 rcr1;
	u16 tcr2;
	u16 rcr2;
	int configured;
};

static struct bf5xx_i2s_port bf5xx_i2s;
static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM;

static struct sport_param sport_params[2] = {
	{
		.dma_rx_chan	= CH_SPORT0_RX,
		.dma_tx_chan	= CH_SPORT0_TX,
		.err_irq	= IRQ_SPORT0_ERROR,
		.regs		= (struct sport_register *)SPORT0_TCR1,
	},
	{
		.dma_rx_chan	= CH_SPORT1_RX,
		.dma_tx_chan	= CH_SPORT1_TX,
		.err_irq	= IRQ_SPORT1_ERROR,
		.regs		= (struct sport_register *)SPORT1_TCR1,
	}
};

/*
 * Setting the TFS pin selector for SPORT 0 based on whether the selected
 * port id F or G. If the port is F then no conflict should exist for the
 * TFS. When Port G is selected and EMAC then there is a conflict between
 * the PHY interrupt line and TFS.  Current settings prevent the conflict
 * by ignoring the TFS pin when Port G is selected. This allows both
 * ssm2602 using Port G and EMAC concurrently.
 */
#ifdef CONFIG_BF527_SPORT0_PORTF
#define LOCAL_SPORT0_TFS (P_SPORT0_TFS)
#else
#define LOCAL_SPORT0_TFS (0)
#endif

static u16 sport_req[][7] = { {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
		P_SPORT0_DRPRI, P_SPORT0_RSCLK, LOCAL_SPORT0_TFS, 0},
		{P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS, P_SPORT1_DRPRI,
		P_SPORT1_RSCLK, P_SPORT1_TFS, 0} };

static int bf5xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
		unsigned int fmt)
{
	int ret = 0;

	/* interface format:support I2S,slave mode */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		bf5xx_i2s.tcr1 |= TFSR | TCKFE;
		bf5xx_i2s.rcr1 |= RFSR | RCKFE;
		bf5xx_i2s.tcr2 |= TSFSE;
		bf5xx_i2s.rcr2 |= RSFSE;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		bf5xx_i2s.tcr1 |= TFSR;
		bf5xx_i2s.rcr1 |= RFSR;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		ret = -EINVAL;
		break;
	default:
		printk(KERN_ERR "%s: Unknown DAI format type\n", __func__);
		ret = -EINVAL;
		break;
	}

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		break;
	case SND_SOC_DAIFMT_CBS_CFS:
	case SND_SOC_DAIFMT_CBM_CFS:
	case SND_SOC_DAIFMT_CBS_CFM:
		ret = -EINVAL;
		break;
	default:
		printk(KERN_ERR "%s: Unknown DAI master type\n", __func__);
		ret = -EINVAL;
		break;
	}

	return ret;
}

static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params,
				struct snd_soc_dai *dai)
{
	int ret = 0;

	bf5xx_i2s.tcr2 &= ~0x1f;
	bf5xx_i2s.rcr2 &= ~0x1f;
	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		bf5xx_i2s.tcr2 |= 15;
		bf5xx_i2s.rcr2 |= 15;
		sport_handle->wdsize = 2;
		break;
	case SNDRV_PCM_FORMAT_S24_LE:
		bf5xx_i2s.tcr2 |= 23;
		bf5xx_i2s.rcr2 |= 23;
		sport_handle->wdsize = 3;
		break;
	case SNDRV_PCM_FORMAT_S32_LE:
		bf5xx_i2s.tcr2 |= 31;
		bf5xx_i2s.rcr2 |= 31;
		sport_handle->wdsize = 4;
		break;
	}

	if (!bf5xx_i2s.configured) {
		/*
		 * TX and RX are not independent,they are enabled at the
		 * same time, even if only one side is running. So, we
		 * need to configure both of them at the time when the first
		 * stream is opened.
		 *
		 * CPU DAI:slave mode.
		 */
		bf5xx_i2s.configured = 1;
		ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1,
				      bf5xx_i2s.rcr2, 0, 0);
		if (ret) {
			pr_err("SPORT is busy!\n");
			return -EBUSY;
		}

		ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1,
				      bf5xx_i2s.tcr2, 0, 0);
		if (ret) {
			pr_err("SPORT is busy!\n");
			return -EBUSY;
		}
	}

	return 0;
}

static void bf5xx_i2s_shutdown(struct snd_pcm_substream *substream,
			       struct snd_soc_dai *dai)
{
	pr_debug("%s enter\n", __func__);
	/* No active stream, SPORT is allowed to be configured again. */
	if (!dai->active)
		bf5xx_i2s.configured = 0;
}

static int bf5xx_i2s_probe(struct platform_device *pdev,
			   struct snd_soc_dai *dai)
{
	pr_debug("%s enter\n", __func__);
	if (peripheral_request_list(&sport_req[sport_num][0], "soc-audio")) {
		pr_err("Requesting Peripherals failed\n");
		return -EFAULT;
	}

	/* request DMA for SPORT */
	sport_handle = sport_init(&sport_params[sport_num], 4, \
			2 * sizeof(u32), NULL);
	if (!sport_handle) {
		peripheral_free_list(&sport_req[sport_num][0]);
		return -ENODEV;
	}

	return 0;
}

static void bf5xx_i2s_remove(struct platform_device *pdev,
			struct snd_soc_dai *dai)
{
	pr_debug("%s enter\n", __func__);
	peripheral_free_list(&sport_req[sport_num][0]);
}

#ifdef CONFIG_PM
static int bf5xx_i2s_suspend(struct snd_soc_dai *dai)
{

	pr_debug("%s : sport %d\n", __func__, dai->id);

	if (dai->capture.active)
		sport_rx_stop(sport_handle);
	if (dai->playback.active)
		sport_tx_stop(sport_handle);
	return 0;
}

static int bf5xx_i2s_resume(struct snd_soc_dai *dai)
{
	int ret;

	pr_debug("%s : sport %d\n", __func__, dai->id);

	ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1,
				      bf5xx_i2s.rcr2, 0, 0);
	if (ret) {
		pr_err("SPORT is busy!\n");
		return -EBUSY;
	}

	ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1,
				      bf5xx_i2s.tcr2, 0, 0);
	if (ret) {
		pr_err("SPORT is busy!\n");
		return -EBUSY;
	}

	return 0;
}

#else
#define bf5xx_i2s_suspend	NULL
#define bf5xx_i2s_resume	NULL
#endif

#define BF5XX_I2S_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
		SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
		SNDRV_PCM_RATE_96000)

#define BF5XX_I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
	SNDRV_PCM_FMTBIT_S32_LE)

static struct snd_soc_dai_ops bf5xx_i2s_dai_ops = {
	.shutdown	= bf5xx_i2s_shutdown,
	.hw_params	= bf5xx_i2s_hw_params,
	.set_fmt	= bf5xx_i2s_set_dai_fmt,
};

struct snd_soc_dai bf5xx_i2s_dai = {
	.name = "bf5xx-i2s",
	.id = 0,
	.probe = bf5xx_i2s_probe,
	.remove = bf5xx_i2s_remove,
	.suspend = bf5xx_i2s_suspend,
	.resume = bf5xx_i2s_resume,
	.playback = {
		.channels_min = 1,
		.channels_max = 2,
		.rates = BF5XX_I2S_RATES,
		.formats = BF5XX_I2S_FORMATS,},
	.capture = {
		.channels_min = 1,
		.channels_max = 2,
		.rates = BF5XX_I2S_RATES,
		.formats = BF5XX_I2S_FORMATS,},
	.ops = &bf5xx_i2s_dai_ops,
};
EXPORT_SYMBOL_GPL(bf5xx_i2s_dai);

static int __init bfin_i2s_init(void)
{
	return snd_soc_register_dai(&bf5xx_i2s_dai);
}
module_init(bfin_i2s_init);

static void __exit bfin_i2s_exit(void)
{
	snd_soc_unregister_dai(&bf5xx_i2s_dai);
}
module_exit(bfin_i2s_exit);

/* Module information */
MODULE_AUTHOR("Cliff Cai");
MODULE_DESCRIPTION("I2S driver for ADI Blackfin");
MODULE_LICENSE("GPL");
Commit	Line	Data
912c2ac9 CC	1	/*
	2	* File: sound/soc/blackfin/bf5xx-i2s.c
	3	* Author: Cliff Cai <Cliff.Cai@analog.com>
	4	*
	5	* Created: Tue June 06 2008
	6	* Description: Blackfin I2S CPU DAI driver
	7	*
	8	* Modified:
	9	* Copyright 2008 Analog Devices Inc.
	10	*
	11	* Bugs: Enter bugs at http://blackfin.uclinux.org/
	12	*
	13	* This program is free software; you can redistribute it and/or modify
	14	* it under the terms of the GNU General Public License as published by
	15	* the Free Software Foundation; either version 2 of the License, or
	16	* (at your option) any later version.
	17	*
	18	* This program is distributed in the hope that it will be useful,
	19	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
	22	*
	23	* You should have received a copy of the GNU General Public License
	24	* along with this program; if not, see the file COPYING, or write
	25	* to the Free Software Foundation, Inc.,
	26	* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	27	*/
	28
	29	#include <linux/init.h>
	30	#include <linux/module.h>
	31	#include <linux/device.h>
	32	#include <linux/delay.h>
	33	#include <sound/core.h>
	34	#include <sound/pcm.h>
	35	#include <sound/pcm_params.h>
	36	#include <sound/initval.h>
	37	#include <sound/soc.h>
	38
	39	#include <asm/irq.h>
	40	#include <asm/portmux.h>
	41	#include <linux/mutex.h>
	42	#include <linux/gpio.h>
	43
	44	#include "bf5xx-sport.h"
	45	#include "bf5xx-i2s.h"
	46
	47	struct bf5xx_i2s_port {
	48	u16 tcr1;
	49	u16 rcr1;
	50	u16 tcr2;
	51	u16 rcr2;
895c9c05	52	int configured;
912c2ac9 CC	53	};
	54
	55	static struct bf5xx_i2s_port bf5xx_i2s;
	56	static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM;
	57
	58	static struct sport_param sport_params[2] = {
	59	{
	60	.dma_rx_chan = CH_SPORT0_RX,
	61	.dma_tx_chan = CH_SPORT0_TX,
	62	.err_irq = IRQ_SPORT0_ERROR,
	63	.regs = (struct sport_register *)SPORT0_TCR1,
	64	},
	65	{
	66	.dma_rx_chan = CH_SPORT1_RX,
	67	.dma_tx_chan = CH_SPORT1_TX,
	68	.err_irq = IRQ_SPORT1_ERROR,
	69	.regs = (struct sport_register *)SPORT1_TCR1,
	70	}
	71	};
	72
c3e5203b CC	73	/*
	74	* Setting the TFS pin selector for SPORT 0 based on whether the selected
	75	* port id F or G. If the port is F then no conflict should exist for the
	76	* TFS. When Port G is selected and EMAC then there is a conflict between
	77	* the PHY interrupt line and TFS. Current settings prevent the conflict
	78	* by ignoring the TFS pin when Port G is selected. This allows both
	79	* ssm2602 using Port G and EMAC concurrently.
	80	*/
	81	#ifdef CONFIG_BF527_SPORT0_PORTF
	82	#define LOCAL_SPORT0_TFS (P_SPORT0_TFS)
	83	#else
	84	#define LOCAL_SPORT0_TFS (0)
	85	#endif
	86
	87	static u16 sport_req[][7] = { {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
	88	P_SPORT0_DRPRI, P_SPORT0_RSCLK, LOCAL_SPORT0_TFS, 0},
	89	{P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS, P_SPORT1_DRPRI,
	90	P_SPORT1_RSCLK, P_SPORT1_TFS, 0} };
33392680	91
912c2ac9 CC	92	static int bf5xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
	93	unsigned int fmt)
	94	{
	95	int ret = 0;
	96
	97	/* interface format:support I2S,slave mode */
	98	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	99	case SND_SOC_DAIFMT_I2S:
33392680 CC	100	bf5xx_i2s.tcr1 \|= TFSR \| TCKFE;
	101	bf5xx_i2s.rcr1 \|= RFSR \| RCKFE;
	102	bf5xx_i2s.tcr2 \|= TSFSE;
	103	bf5xx_i2s.rcr2 \|= RSFSE;
	104	break;
	105	case SND_SOC_DAIFMT_DSP_A:
	106	bf5xx_i2s.tcr1 \|= TFSR;
	107	bf5xx_i2s.rcr1 \|= RFSR;
912c2ac9 CC	108	break;
	109	case SND_SOC_DAIFMT_LEFT_J:
	110	ret = -EINVAL;
	111	break;
	112	default:
c3e5203b	113	printk(KERN_ERR "%s: Unknown DAI format type\n", __func__);
912c2ac9 CC	114	ret = -EINVAL;
	115	break;
	116	}
	117
	118	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
912c2ac9 CC	119	case SND_SOC_DAIFMT_CBM_CFM:
912c2ac9 CC	120	break;
c3e5203b CC	121	case SND_SOC_DAIFMT_CBS_CFS:
c3e5203b CC	122	case SND_SOC_DAIFMT_CBM_CFS:
912c2ac9 CC	123	case SND_SOC_DAIFMT_CBS_CFM:
	124	ret = -EINVAL;
	125	break;
	126	default:
c3e5203b	127	printk(KERN_ERR "%s: Unknown DAI master type\n", __func__);
912c2ac9 CC	128	ret = -EINVAL;
	129	break;
	130	}
	131
	132	return ret;
	133	}
	134
912c2ac9	135	static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
dee89c4d MB	136	struct snd_pcm_hw_params *params,
dee89c4d MB	137	struct snd_soc_dai *dai)
912c2ac9 CC	138	{
	139	int ret = 0;
	140
	141	bf5xx_i2s.tcr2 &= ~0x1f;
	142	bf5xx_i2s.rcr2 &= ~0x1f;
	143	switch (params_format(params)) {
	144	case SNDRV_PCM_FORMAT_S16_LE:
	145	bf5xx_i2s.tcr2 \|= 15;
	146	bf5xx_i2s.rcr2 \|= 15;
33392680	147	sport_handle->wdsize = 2;
912c2ac9 CC	148	break;
	149	case SNDRV_PCM_FORMAT_S24_LE:
	150	bf5xx_i2s.tcr2 \|= 23;
	151	bf5xx_i2s.rcr2 \|= 23;
33392680	152	sport_handle->wdsize = 3;
912c2ac9 CC	153	break;
	154	case SNDRV_PCM_FORMAT_S32_LE:
	155	bf5xx_i2s.tcr2 \|= 31;
	156	bf5xx_i2s.rcr2 \|= 31;
33392680	157	sport_handle->wdsize = 4;
912c2ac9 CC	158	break;
	159	}
	160
895c9c05	161	if (!bf5xx_i2s.configured) {
912c2ac9 CC	162	/*
	163	* TX and RX are not independent,they are enabled at the
	164	* same time, even if only one side is running. So, we
	165	* need to configure both of them at the time when the first
	166	* stream is opened.
	167	*
33392680	168	* CPU DAI:slave mode.
912c2ac9	169	*/
895c9c05	170	bf5xx_i2s.configured = 1;
33392680 CC	171	ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1,
33392680 CC	172	bf5xx_i2s.rcr2, 0, 0);
912c2ac9 CC	173	if (ret) {
	174	pr_err("SPORT is busy!\n");
	175	return -EBUSY;
	176	}
	177
33392680 CC	178	ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1,
33392680 CC	179	bf5xx_i2s.tcr2, 0, 0);
912c2ac9 CC	180	if (ret) {
	181	pr_err("SPORT is busy!\n");
	182	return -EBUSY;
	183	}
	184	}
	185
	186	return 0;
	187	}
	188
dee89c4d MB	189	static void bf5xx_i2s_shutdown(struct snd_pcm_substream *substream,
dee89c4d MB	190	struct snd_soc_dai *dai)
912c2ac9 CC	191	{
912c2ac9 CC	192	pr_debug("%s enter\n", __func__);
895c9c05	193	/* No active stream, SPORT is allowed to be configured again. */
766df6d9	194	if (!dai->active)
895c9c05	195	bf5xx_i2s.configured = 0;
912c2ac9 CC	196	}
	197
	198	static int bf5xx_i2s_probe(struct platform_device *pdev,
	199	struct snd_soc_dai *dai)
	200	{
912c2ac9 CC	201	pr_debug("%s enter\n", __func__);
	202	if (peripheral_request_list(&sport_req[sport_num][0], "soc-audio")) {
	203	pr_err("Requesting Peripherals failed\n");
	204	return -EFAULT;
	205	}
	206
	207	/* request DMA for SPORT */
	208	sport_handle = sport_init(&sport_params[sport_num], 4, \
	209	2 * sizeof(u32), NULL);
	210	if (!sport_handle) {
	211	peripheral_free_list(&sport_req[sport_num][0]);
	212	return -ENODEV;
	213	}
	214
	215	return 0;
	216	}
	217
fab19bae BS	218	static void bf5xx_i2s_remove(struct platform_device *pdev,
fab19bae BS	219	struct snd_soc_dai *dai)
33392680 CC	220	{
	221	pr_debug("%s enter\n", __func__);
	222	peripheral_free_list(&sport_req[sport_num][0]);
	223	}
	224
912c2ac9	225	#ifdef CONFIG_PM
dc7d7b83	226	static int bf5xx_i2s_suspend(struct snd_soc_dai *dai)
912c2ac9	227	{
912c2ac9 CC	228
912c2ac9 CC	229	pr_debug("%s : sport %d\n", __func__, dai->id);
ad80efc4	230
912c2ac9	231	if (dai->capture.active)
ad80efc4	232	sport_rx_stop(sport_handle);
912c2ac9	233	if (dai->playback.active)
ad80efc4	234	sport_tx_stop(sport_handle);
912c2ac9 CC	235	return 0;
	236	}
	237
92a6ad34	238	static int bf5xx_i2s_resume(struct snd_soc_dai *dai)
912c2ac9 CC	239	{
912c2ac9 CC	240	int ret;
912c2ac9 CC	241
912c2ac9 CC	242	pr_debug("%s : sport %d\n", __func__, dai->id);
912c2ac9	243
ad80efc4 CC	244	ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1,
ad80efc4 CC	245	bf5xx_i2s.rcr2, 0, 0);
912c2ac9 CC	246	if (ret) {
	247	pr_err("SPORT is busy!\n");
	248	return -EBUSY;
	249	}
	250
ad80efc4 CC	251	ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1,
ad80efc4 CC	252	bf5xx_i2s.tcr2, 0, 0);
912c2ac9 CC	253	if (ret) {
	254	pr_err("SPORT is busy!\n");
	255	return -EBUSY;
	256	}
	257
912c2ac9 CC	258	return 0;
	259	}
	260
	261	#else
	262	#define bf5xx_i2s_suspend NULL
	263	#define bf5xx_i2s_resume NULL
	264	#endif
	265
	266	#define BF5XX_I2S_RATES (SNDRV_PCM_RATE_8000 \| SNDRV_PCM_RATE_11025 \|\
	267	SNDRV_PCM_RATE_16000 \| SNDRV_PCM_RATE_22050 \| \
	268	SNDRV_PCM_RATE_44100 \| SNDRV_PCM_RATE_48000 \| \
	269	SNDRV_PCM_RATE_96000)
	270
	271	#define BF5XX_I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE \| SNDRV_PCM_FMTBIT_S24_LE \|\
	272	SNDRV_PCM_FMTBIT_S32_LE)
	273
6335d055	274	static struct snd_soc_dai_ops bf5xx_i2s_dai_ops = {
6335d055 EM	275	.shutdown = bf5xx_i2s_shutdown,
	276	.hw_params = bf5xx_i2s_hw_params,
	277	.set_fmt = bf5xx_i2s_set_dai_fmt,
	278	};
	279
912c2ac9 CC	280	struct snd_soc_dai bf5xx_i2s_dai = {
	281	.name = "bf5xx-i2s",
	282	.id = 0,
912c2ac9	283	.probe = bf5xx_i2s_probe,
33392680	284	.remove = bf5xx_i2s_remove,
912c2ac9 CC	285	.suspend = bf5xx_i2s_suspend,
	286	.resume = bf5xx_i2s_resume,
	287	.playback = {
33392680	288	.channels_min = 1,
912c2ac9 CC	289	.channels_max = 2,
	290	.rates = BF5XX_I2S_RATES,
	291	.formats = BF5XX_I2S_FORMATS,},
	292	.capture = {
33392680	293	.channels_min = 1,
912c2ac9 CC	294	.channels_max = 2,
	295	.rates = BF5XX_I2S_RATES,
	296	.formats = BF5XX_I2S_FORMATS,},
6335d055	297	.ops = &bf5xx_i2s_dai_ops,
912c2ac9 CC	298	};
	299	EXPORT_SYMBOL_GPL(bf5xx_i2s_dai);
	300
c9b3a40f	301	static int __init bfin_i2s_init(void)
3f4b783c	302	{
4544f8a2	303	return snd_soc_register_dai(&bf5xx_i2s_dai);
3f4b783c MB	304	}
	305	module_init(bfin_i2s_init);
	306
	307	static void __exit bfin_i2s_exit(void)
	308	{
4544f8a2	309	snd_soc_unregister_dai(&bf5xx_i2s_dai);
3f4b783c MB	310	}
	311	module_exit(bfin_i2s_exit);
	312
912c2ac9 CC	313	/* Module information */
	314	MODULE_AUTHOR("Cliff Cai");
	315	MODULE_DESCRIPTION("I2S driver for ADI Blackfin");
	316	MODULE_LICENSE("GPL");
	317