[deliverable/linux.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"

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
 * codecs and EMAC using Port G concurrently.
 */
#ifdef CONFIG_BF527_SPORT0_PORTG
#define LOCAL_SPORT0_TFS (0)
#else
#define LOCAL_SPORT0_TFS (P_SPORT0_TFS)
#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 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 int bf5xx_i2s_remove(struct snd_soc_dai *dai)
{
	pr_debug("%s enter\n", __func__);
	peripheral_free_list(&sport_req[sport_num][0]);
	return 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,
};

static struct snd_soc_dai_driver bf5xx_i2s_dai = {
	.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,
};

static int bfin_i2s_drv_probe(struct platform_device *pdev)
{
	return snd_soc_register_dai(&pdev->dev, &bf5xx_i2s_dai);
}

static int __devexit bfin_i2s_drv_remove(struct platform_device *pdev)
{
	snd_soc_unregister_dai(&pdev->dev);
	return 0;
}

static struct platform_driver bfin_i2s_driver = {
	.probe = bfin_i2s_drv_probe,
	.remove = __devexit_p(bfin_i2s_drv_remove),

	.driver = {
		.name = "bf5xx-i2s",
		.owner = THIS_MODULE,
	},
};

static int __init bfin_i2s_init(void)
{
	return platform_driver_register(&bfin_i2s_driver);
}

static void __exit bfin_i2s_exit(void)
{
	platform_driver_unregister(&bfin_i2s_driver);
}

module_init(bfin_i2s_init);
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"
912c2ac9 CC	45
	46	struct bf5xx_i2s_port {
	47	u16 tcr1;
	48	u16 rcr1;
	49	u16 tcr2;
	50	u16 rcr2;
895c9c05	51	int configured;
912c2ac9 CC	52	};
	53
	54	static struct bf5xx_i2s_port bf5xx_i2s;
	55	static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM;
	56
	57	static struct sport_param sport_params[2] = {
	58	{
	59	.dma_rx_chan = CH_SPORT0_RX,
	60	.dma_tx_chan = CH_SPORT0_TX,
	61	.err_irq = IRQ_SPORT0_ERROR,
	62	.regs = (struct sport_register *)SPORT0_TCR1,
	63	},
	64	{
	65	.dma_rx_chan = CH_SPORT1_RX,
	66	.dma_tx_chan = CH_SPORT1_TX,
	67	.err_irq = IRQ_SPORT1_ERROR,
	68	.regs = (struct sport_register *)SPORT1_TCR1,
	69	}
	70	};
	71
c3e5203b CC	72	/*
	73	* Setting the TFS pin selector for SPORT 0 based on whether the selected
	74	* port id F or G. If the port is F then no conflict should exist for the
	75	* TFS. When Port G is selected and EMAC then there is a conflict between
	76	* the PHY interrupt line and TFS. Current settings prevent the conflict
	77	* by ignoring the TFS pin when Port G is selected. This allows both
df0fd5e5	78	* codecs and EMAC using Port G concurrently.
c3e5203b	79	*/
df0fd5e5	80	#ifdef CONFIG_BF527_SPORT0_PORTG
c3e5203b	81	#define LOCAL_SPORT0_TFS (0)
df0fd5e5 CC	82	#else
df0fd5e5 CC	83	#define LOCAL_SPORT0_TFS (P_SPORT0_TFS)
c3e5203b CC	84	#endif
	85
	86	static u16 sport_req[][7] = { {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
	87	P_SPORT0_DRPRI, P_SPORT0_RSCLK, LOCAL_SPORT0_TFS, 0},
	88	{P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS, P_SPORT1_DRPRI,
	89	P_SPORT1_RSCLK, P_SPORT1_TFS, 0} };
33392680	90
912c2ac9 CC	91	static int bf5xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
	92	unsigned int fmt)
	93	{
	94	int ret = 0;
	95
	96	/* interface format:support I2S,slave mode */
	97	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	98	case SND_SOC_DAIFMT_I2S:
33392680 CC	99	bf5xx_i2s.tcr1 \|= TFSR \| TCKFE;
	100	bf5xx_i2s.rcr1 \|= RFSR \| RCKFE;
	101	bf5xx_i2s.tcr2 \|= TSFSE;
	102	bf5xx_i2s.rcr2 \|= RSFSE;
	103	break;
	104	case SND_SOC_DAIFMT_DSP_A:
	105	bf5xx_i2s.tcr1 \|= TFSR;
	106	bf5xx_i2s.rcr1 \|= RFSR;
912c2ac9 CC	107	break;
	108	case SND_SOC_DAIFMT_LEFT_J:
	109	ret = -EINVAL;
	110	break;
	111	default:
c3e5203b	112	printk(KERN_ERR "%s: Unknown DAI format type\n", __func__);
912c2ac9 CC	113	ret = -EINVAL;
	114	break;
	115	}
	116
	117	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
912c2ac9 CC	118	case SND_SOC_DAIFMT_CBM_CFM:
912c2ac9 CC	119	break;
c3e5203b CC	120	case SND_SOC_DAIFMT_CBS_CFS:
c3e5203b CC	121	case SND_SOC_DAIFMT_CBM_CFS:
912c2ac9 CC	122	case SND_SOC_DAIFMT_CBS_CFM:
	123	ret = -EINVAL;
	124	break;
	125	default:
c3e5203b	126	printk(KERN_ERR "%s: Unknown DAI master type\n", __func__);
912c2ac9 CC	127	ret = -EINVAL;
	128	break;
	129	}
	130
	131	return ret;
	132	}
	133
912c2ac9	134	static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
dee89c4d MB	135	struct snd_pcm_hw_params *params,
dee89c4d MB	136	struct snd_soc_dai *dai)
912c2ac9 CC	137	{
	138	int ret = 0;
	139
	140	bf5xx_i2s.tcr2 &= ~0x1f;
	141	bf5xx_i2s.rcr2 &= ~0x1f;
	142	switch (params_format(params)) {
	143	case SNDRV_PCM_FORMAT_S16_LE:
	144	bf5xx_i2s.tcr2 \|= 15;
	145	bf5xx_i2s.rcr2 \|= 15;
33392680	146	sport_handle->wdsize = 2;
912c2ac9 CC	147	break;
	148	case SNDRV_PCM_FORMAT_S24_LE:
	149	bf5xx_i2s.tcr2 \|= 23;
	150	bf5xx_i2s.rcr2 \|= 23;
33392680	151	sport_handle->wdsize = 3;
912c2ac9 CC	152	break;
	153	case SNDRV_PCM_FORMAT_S32_LE:
	154	bf5xx_i2s.tcr2 \|= 31;
	155	bf5xx_i2s.rcr2 \|= 31;
33392680	156	sport_handle->wdsize = 4;
912c2ac9 CC	157	break;
	158	}
	159
895c9c05	160	if (!bf5xx_i2s.configured) {
912c2ac9 CC	161	/*
	162	* TX and RX are not independent,they are enabled at the
	163	* same time, even if only one side is running. So, we
	164	* need to configure both of them at the time when the first
	165	* stream is opened.
	166	*
33392680	167	* CPU DAI:slave mode.
912c2ac9	168	*/
895c9c05	169	bf5xx_i2s.configured = 1;
33392680 CC	170	ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1,
33392680 CC	171	bf5xx_i2s.rcr2, 0, 0);
912c2ac9 CC	172	if (ret) {
	173	pr_err("SPORT is busy!\n");
	174	return -EBUSY;
	175	}
	176
33392680 CC	177	ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1,
33392680 CC	178	bf5xx_i2s.tcr2, 0, 0);
912c2ac9 CC	179	if (ret) {
	180	pr_err("SPORT is busy!\n");
	181	return -EBUSY;
	182	}
	183	}
	184
	185	return 0;
	186	}
	187
dee89c4d MB	188	static void bf5xx_i2s_shutdown(struct snd_pcm_substream *substream,
dee89c4d MB	189	struct snd_soc_dai *dai)
912c2ac9 CC	190	{
912c2ac9 CC	191	pr_debug("%s enter\n", __func__);
895c9c05	192	/* No active stream, SPORT is allowed to be configured again. */
766df6d9	193	if (!dai->active)
895c9c05	194	bf5xx_i2s.configured = 0;
912c2ac9 CC	195	}
912c2ac9 CC	196
f0fba2ad	197	static int bf5xx_i2s_probe(struct snd_soc_dai *dai)
912c2ac9	198	{
912c2ac9 CC	199	pr_debug("%s enter\n", __func__);
	200	if (peripheral_request_list(&sport_req[sport_num][0], "soc-audio")) {
	201	pr_err("Requesting Peripherals failed\n");
	202	return -EFAULT;
	203	}
	204
	205	/* request DMA for SPORT */
	206	sport_handle = sport_init(&sport_params[sport_num], 4, \
	207	2 * sizeof(u32), NULL);
	208	if (!sport_handle) {
	209	peripheral_free_list(&sport_req[sport_num][0]);
	210	return -ENODEV;
	211	}
	212
	213	return 0;
	214	}
	215
f0fba2ad	216	static int bf5xx_i2s_remove(struct snd_soc_dai *dai)
33392680 CC	217	{
	218	pr_debug("%s enter\n", __func__);
	219	peripheral_free_list(&sport_req[sport_num][0]);
f0fba2ad	220	return 0;
33392680 CC	221	}
33392680 CC	222
912c2ac9	223	#ifdef CONFIG_PM
dc7d7b83	224	static int bf5xx_i2s_suspend(struct snd_soc_dai *dai)
912c2ac9	225	{
912c2ac9 CC	226
912c2ac9 CC	227	pr_debug("%s : sport %d\n", __func__, dai->id);
ad80efc4	228
f0fba2ad	229	if (dai->capture_active)
ad80efc4	230	sport_rx_stop(sport_handle);
f0fba2ad	231	if (dai->playback_active)
ad80efc4	232	sport_tx_stop(sport_handle);
912c2ac9 CC	233	return 0;
	234	}
	235
92a6ad34	236	static int bf5xx_i2s_resume(struct snd_soc_dai *dai)
912c2ac9 CC	237	{
912c2ac9 CC	238	int ret;
912c2ac9 CC	239
912c2ac9 CC	240	pr_debug("%s : sport %d\n", __func__, dai->id);
912c2ac9	241
ad80efc4 CC	242	ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1,
ad80efc4 CC	243	bf5xx_i2s.rcr2, 0, 0);
912c2ac9 CC	244	if (ret) {
	245	pr_err("SPORT is busy!\n");
	246	return -EBUSY;
	247	}
	248
ad80efc4 CC	249	ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1,
ad80efc4 CC	250	bf5xx_i2s.tcr2, 0, 0);
912c2ac9 CC	251	if (ret) {
	252	pr_err("SPORT is busy!\n");
	253	return -EBUSY;
	254	}
	255
912c2ac9 CC	256	return 0;
	257	}
	258
	259	#else
	260	#define bf5xx_i2s_suspend NULL
	261	#define bf5xx_i2s_resume NULL
	262	#endif
	263
	264	#define BF5XX_I2S_RATES (SNDRV_PCM_RATE_8000 \| SNDRV_PCM_RATE_11025 \|\
	265	SNDRV_PCM_RATE_16000 \| SNDRV_PCM_RATE_22050 \| \
	266	SNDRV_PCM_RATE_44100 \| SNDRV_PCM_RATE_48000 \| \
	267	SNDRV_PCM_RATE_96000)
	268
	269	#define BF5XX_I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE \| SNDRV_PCM_FMTBIT_S24_LE \|\
	270	SNDRV_PCM_FMTBIT_S32_LE)
	271
6335d055	272	static struct snd_soc_dai_ops bf5xx_i2s_dai_ops = {
6335d055 EM	273	.shutdown = bf5xx_i2s_shutdown,
	274	.hw_params = bf5xx_i2s_hw_params,
	275	.set_fmt = bf5xx_i2s_set_dai_fmt,
	276	};
	277
f0fba2ad	278	static struct snd_soc_dai_driver bf5xx_i2s_dai = {
912c2ac9	279	.probe = bf5xx_i2s_probe,
33392680	280	.remove = bf5xx_i2s_remove,
912c2ac9 CC	281	.suspend = bf5xx_i2s_suspend,
	282	.resume = bf5xx_i2s_resume,
	283	.playback = {
33392680	284	.channels_min = 1,
912c2ac9 CC	285	.channels_max = 2,
	286	.rates = BF5XX_I2S_RATES,
	287	.formats = BF5XX_I2S_FORMATS,},
	288	.capture = {
33392680	289	.channels_min = 1,
912c2ac9 CC	290	.channels_max = 2,
	291	.rates = BF5XX_I2S_RATES,
	292	.formats = BF5XX_I2S_FORMATS,},
6335d055	293	.ops = &bf5xx_i2s_dai_ops,
912c2ac9	294	};
f0fba2ad LG	295
	296	static int bfin_i2s_drv_probe(struct platform_device *pdev)
	297	{
	298	return snd_soc_register_dai(&pdev->dev, &bf5xx_i2s_dai);
	299	}
	300
	301	static int __devexit bfin_i2s_drv_remove(struct platform_device *pdev)
	302	{
	303	snd_soc_unregister_dai(&pdev->dev);
	304	return 0;
	305	}
	306
	307	static struct platform_driver bfin_i2s_driver = {
	308	.probe = bfin_i2s_drv_probe,
	309	.remove = __devexit_p(bfin_i2s_drv_remove),
	310
	311	.driver = {
	312	.name = "bf5xx-i2s",
	313	.owner = THIS_MODULE,
	314	},
	315	};
912c2ac9	316
c9b3a40f	317	static int __init bfin_i2s_init(void)
3f4b783c	318	{
f0fba2ad	319	return platform_driver_register(&bfin_i2s_driver);
3f4b783c	320	}
3f4b783c MB	321
	322	static void __exit bfin_i2s_exit(void)
	323	{
f0fba2ad	324	platform_driver_unregister(&bfin_i2s_driver);
3f4b783c	325	}
f0fba2ad LG	326
f0fba2ad LG	327	module_init(bfin_i2s_init);
3f4b783c MB	328	module_exit(bfin_i2s_exit);
3f4b783c MB	329
912c2ac9 CC	330	/* Module information */
	331	MODULE_AUTHOR("Cliff Cai");
	332	MODULE_DESCRIPTION("I2S driver for ADI Blackfin");
	333	MODULE_LICENSE("GPL");
	334