538 lines
13 KiB
C
538 lines
13 KiB
C
/*
|
|
* Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/delay.h>
|
|
|
|
#include <linux/dma-mapping.h>
|
|
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/initval.h>
|
|
|
|
#include "jz4740-i2s.h"
|
|
#include "jz4740-pcm.h"
|
|
|
|
#define JZ_REG_AIC_CONF 0x00
|
|
#define JZ_REG_AIC_CTRL 0x04
|
|
#define JZ_REG_AIC_I2S_FMT 0x10
|
|
#define JZ_REG_AIC_FIFO_STATUS 0x14
|
|
#define JZ_REG_AIC_I2S_STATUS 0x1c
|
|
#define JZ_REG_AIC_CLK_DIV 0x30
|
|
#define JZ_REG_AIC_FIFO 0x34
|
|
|
|
#define JZ_AIC_CONF_FIFO_RX_THRESHOLD_MASK (0xf << 12)
|
|
#define JZ_AIC_CONF_FIFO_TX_THRESHOLD_MASK (0xf << 8)
|
|
#define JZ_AIC_CONF_OVERFLOW_PLAY_LAST BIT(6)
|
|
#define JZ_AIC_CONF_INTERNAL_CODEC BIT(5)
|
|
#define JZ_AIC_CONF_I2S BIT(4)
|
|
#define JZ_AIC_CONF_RESET BIT(3)
|
|
#define JZ_AIC_CONF_BIT_CLK_MASTER BIT(2)
|
|
#define JZ_AIC_CONF_SYNC_CLK_MASTER BIT(1)
|
|
#define JZ_AIC_CONF_ENABLE BIT(0)
|
|
|
|
#define JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET 12
|
|
#define JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET 8
|
|
|
|
#define JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_MASK (0x7 << 19)
|
|
#define JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK (0x7 << 16)
|
|
#define JZ_AIC_CTRL_ENABLE_RX_DMA BIT(15)
|
|
#define JZ_AIC_CTRL_ENABLE_TX_DMA BIT(14)
|
|
#define JZ_AIC_CTRL_MONO_TO_STEREO BIT(11)
|
|
#define JZ_AIC_CTRL_SWITCH_ENDIANNESS BIT(10)
|
|
#define JZ_AIC_CTRL_SIGNED_TO_UNSIGNED BIT(9)
|
|
#define JZ_AIC_CTRL_FLUSH BIT(8)
|
|
#define JZ_AIC_CTRL_ENABLE_ROR_INT BIT(6)
|
|
#define JZ_AIC_CTRL_ENABLE_TUR_INT BIT(5)
|
|
#define JZ_AIC_CTRL_ENABLE_RFS_INT BIT(4)
|
|
#define JZ_AIC_CTRL_ENABLE_TFS_INT BIT(3)
|
|
#define JZ_AIC_CTRL_ENABLE_LOOPBACK BIT(2)
|
|
#define JZ_AIC_CTRL_ENABLE_PLAYBACK BIT(1)
|
|
#define JZ_AIC_CTRL_ENABLE_CAPTURE BIT(0)
|
|
|
|
#define JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_OFFSET 19
|
|
#define JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET 16
|
|
|
|
#define JZ_AIC_I2S_FMT_DISABLE_BIT_CLK BIT(12)
|
|
#define JZ_AIC_I2S_FMT_ENABLE_SYS_CLK BIT(4)
|
|
#define JZ_AIC_I2S_FMT_MSB BIT(0)
|
|
|
|
#define JZ_AIC_I2S_STATUS_BUSY BIT(2)
|
|
|
|
#define JZ_AIC_CLK_DIV_MASK 0xf
|
|
|
|
struct jz4740_i2s {
|
|
struct resource *mem;
|
|
void __iomem *base;
|
|
dma_addr_t phys_base;
|
|
|
|
struct clk *clk_aic;
|
|
struct clk *clk_i2s;
|
|
|
|
struct jz4740_pcm_config pcm_config_playback;
|
|
struct jz4740_pcm_config pcm_config_capture;
|
|
};
|
|
|
|
static inline uint32_t jz4740_i2s_read(const struct jz4740_i2s *i2s,
|
|
unsigned int reg)
|
|
{
|
|
return readl(i2s->base + reg);
|
|
}
|
|
|
|
static inline void jz4740_i2s_write(const struct jz4740_i2s *i2s,
|
|
unsigned int reg, uint32_t value)
|
|
{
|
|
writel(value, i2s->base + reg);
|
|
}
|
|
|
|
static int jz4740_i2s_startup(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
|
|
uint32_t conf, ctrl;
|
|
|
|
if (dai->active)
|
|
return 0;
|
|
|
|
ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);
|
|
ctrl |= JZ_AIC_CTRL_FLUSH;
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);
|
|
|
|
clk_enable(i2s->clk_i2s);
|
|
|
|
conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
|
|
conf |= JZ_AIC_CONF_ENABLE;
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void jz4740_i2s_shutdown(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
|
|
uint32_t conf;
|
|
|
|
if (dai->active)
|
|
return;
|
|
|
|
conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
|
|
conf &= ~JZ_AIC_CONF_ENABLE;
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
|
|
|
|
clk_disable(i2s->clk_i2s);
|
|
}
|
|
|
|
static int jz4740_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
|
|
|
|
uint32_t ctrl;
|
|
uint32_t mask;
|
|
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
|
mask = JZ_AIC_CTRL_ENABLE_PLAYBACK | JZ_AIC_CTRL_ENABLE_TX_DMA;
|
|
else
|
|
mask = JZ_AIC_CTRL_ENABLE_CAPTURE | JZ_AIC_CTRL_ENABLE_RX_DMA;
|
|
|
|
ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);
|
|
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
case SNDRV_PCM_TRIGGER_RESUME:
|
|
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
|
|
ctrl |= mask;
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
case SNDRV_PCM_TRIGGER_SUSPEND:
|
|
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
|
|
ctrl &= ~mask;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int jz4740_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
|
|
{
|
|
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
|
|
|
|
uint32_t format = 0;
|
|
uint32_t conf;
|
|
|
|
conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
|
|
|
|
conf &= ~(JZ_AIC_CONF_BIT_CLK_MASTER | JZ_AIC_CONF_SYNC_CLK_MASTER);
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
|
case SND_SOC_DAIFMT_CBS_CFS:
|
|
conf |= JZ_AIC_CONF_BIT_CLK_MASTER | JZ_AIC_CONF_SYNC_CLK_MASTER;
|
|
format |= JZ_AIC_I2S_FMT_ENABLE_SYS_CLK;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBM_CFS:
|
|
conf |= JZ_AIC_CONF_SYNC_CLK_MASTER;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBS_CFM:
|
|
conf |= JZ_AIC_CONF_BIT_CLK_MASTER;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBM_CFM:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
|
case SND_SOC_DAIFMT_MSB:
|
|
format |= JZ_AIC_I2S_FMT_MSB;
|
|
break;
|
|
case SND_SOC_DAIFMT_I2S:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
|
case SND_SOC_DAIFMT_NB_NF:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_I2S_FMT, format);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
|
|
{
|
|
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
|
|
enum jz4740_dma_width dma_width;
|
|
struct jz4740_pcm_config *pcm_config;
|
|
unsigned int sample_size;
|
|
uint32_t ctrl;
|
|
|
|
ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);
|
|
|
|
switch (params_format(params)) {
|
|
case SNDRV_PCM_FORMAT_S8:
|
|
sample_size = 0;
|
|
dma_width = JZ4740_DMA_WIDTH_8BIT;
|
|
break;
|
|
case SNDRV_PCM_FORMAT_S16:
|
|
sample_size = 1;
|
|
dma_width = JZ4740_DMA_WIDTH_16BIT;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
|
|
ctrl &= ~JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_MASK;
|
|
ctrl |= sample_size << JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_OFFSET;
|
|
if (params_channels(params) == 1)
|
|
ctrl |= JZ_AIC_CTRL_MONO_TO_STEREO;
|
|
else
|
|
ctrl &= ~JZ_AIC_CTRL_MONO_TO_STEREO;
|
|
|
|
pcm_config = &i2s->pcm_config_playback;
|
|
pcm_config->dma_config.dst_width = dma_width;
|
|
|
|
} else {
|
|
ctrl &= ~JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK;
|
|
ctrl |= sample_size << JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET;
|
|
|
|
pcm_config = &i2s->pcm_config_capture;
|
|
pcm_config->dma_config.src_width = dma_width;
|
|
}
|
|
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);
|
|
|
|
snd_soc_dai_set_dma_data(dai, substream, pcm_config);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int jz4740_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id,
|
|
unsigned int freq, int dir)
|
|
{
|
|
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
|
|
struct clk *parent;
|
|
int ret = 0;
|
|
|
|
switch (clk_id) {
|
|
case JZ4740_I2S_CLKSRC_EXT:
|
|
parent = clk_get(NULL, "ext");
|
|
clk_set_parent(i2s->clk_i2s, parent);
|
|
break;
|
|
case JZ4740_I2S_CLKSRC_PLL:
|
|
parent = clk_get(NULL, "pll half");
|
|
clk_set_parent(i2s->clk_i2s, parent);
|
|
ret = clk_set_rate(i2s->clk_i2s, freq);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
clk_put(parent);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int jz4740_i2s_suspend(struct snd_soc_dai *dai)
|
|
{
|
|
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
|
|
uint32_t conf;
|
|
|
|
if (dai->active) {
|
|
conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
|
|
conf &= ~JZ_AIC_CONF_ENABLE;
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
|
|
|
|
clk_disable(i2s->clk_i2s);
|
|
}
|
|
|
|
clk_disable(i2s->clk_aic);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int jz4740_i2s_resume(struct snd_soc_dai *dai)
|
|
{
|
|
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
|
|
uint32_t conf;
|
|
|
|
clk_enable(i2s->clk_aic);
|
|
|
|
if (dai->active) {
|
|
clk_enable(i2s->clk_i2s);
|
|
|
|
conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
|
|
conf |= JZ_AIC_CONF_ENABLE;
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void jz4740_i2c_init_pcm_config(struct jz4740_i2s *i2s)
|
|
{
|
|
struct jz4740_dma_config *dma_config;
|
|
|
|
/* Playback */
|
|
dma_config = &i2s->pcm_config_playback.dma_config;
|
|
dma_config->src_width = JZ4740_DMA_WIDTH_32BIT,
|
|
dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
|
|
dma_config->request_type = JZ4740_DMA_TYPE_AIC_TRANSMIT;
|
|
dma_config->flags = JZ4740_DMA_SRC_AUTOINC;
|
|
dma_config->mode = JZ4740_DMA_MODE_SINGLE;
|
|
i2s->pcm_config_playback.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
|
|
|
|
/* Capture */
|
|
dma_config = &i2s->pcm_config_capture.dma_config;
|
|
dma_config->dst_width = JZ4740_DMA_WIDTH_32BIT,
|
|
dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
|
|
dma_config->request_type = JZ4740_DMA_TYPE_AIC_RECEIVE;
|
|
dma_config->flags = JZ4740_DMA_DST_AUTOINC;
|
|
dma_config->mode = JZ4740_DMA_MODE_SINGLE;
|
|
i2s->pcm_config_capture.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
|
|
}
|
|
|
|
static int jz4740_i2s_dai_probe(struct snd_soc_dai *dai)
|
|
{
|
|
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
|
|
uint32_t conf;
|
|
|
|
clk_enable(i2s->clk_aic);
|
|
|
|
jz4740_i2c_init_pcm_config(i2s);
|
|
|
|
conf = (7 << JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET) |
|
|
(8 << JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET) |
|
|
JZ_AIC_CONF_OVERFLOW_PLAY_LAST |
|
|
JZ_AIC_CONF_I2S |
|
|
JZ_AIC_CONF_INTERNAL_CODEC;
|
|
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, JZ_AIC_CONF_RESET);
|
|
jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int jz4740_i2s_dai_remove(struct snd_soc_dai *dai)
|
|
{
|
|
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
|
|
|
|
clk_disable(i2s->clk_aic);
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_dai_ops jz4740_i2s_dai_ops = {
|
|
.startup = jz4740_i2s_startup,
|
|
.shutdown = jz4740_i2s_shutdown,
|
|
.trigger = jz4740_i2s_trigger,
|
|
.hw_params = jz4740_i2s_hw_params,
|
|
.set_fmt = jz4740_i2s_set_fmt,
|
|
.set_sysclk = jz4740_i2s_set_sysclk,
|
|
};
|
|
|
|
#define JZ4740_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \
|
|
SNDRV_PCM_FMTBIT_S16_LE)
|
|
|
|
static struct snd_soc_dai_driver jz4740_i2s_dai = {
|
|
.probe = jz4740_i2s_dai_probe,
|
|
.remove = jz4740_i2s_dai_remove,
|
|
.playback = {
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = SNDRV_PCM_RATE_8000_48000,
|
|
.formats = JZ4740_I2S_FMTS,
|
|
},
|
|
.capture = {
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
.rates = SNDRV_PCM_RATE_8000_48000,
|
|
.formats = JZ4740_I2S_FMTS,
|
|
},
|
|
.symmetric_rates = 1,
|
|
.ops = &jz4740_i2s_dai_ops,
|
|
.suspend = jz4740_i2s_suspend,
|
|
.resume = jz4740_i2s_resume,
|
|
};
|
|
|
|
static int __devinit jz4740_i2s_dev_probe(struct platform_device *pdev)
|
|
{
|
|
struct jz4740_i2s *i2s;
|
|
int ret;
|
|
|
|
i2s = kzalloc(sizeof(*i2s), GFP_KERNEL);
|
|
|
|
if (!i2s)
|
|
return -ENOMEM;
|
|
|
|
i2s->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
if (!i2s->mem) {
|
|
ret = -ENOENT;
|
|
goto err_free;
|
|
}
|
|
|
|
i2s->mem = request_mem_region(i2s->mem->start, resource_size(i2s->mem),
|
|
pdev->name);
|
|
if (!i2s->mem) {
|
|
ret = -EBUSY;
|
|
goto err_free;
|
|
}
|
|
|
|
i2s->base = ioremap_nocache(i2s->mem->start, resource_size(i2s->mem));
|
|
if (!i2s->base) {
|
|
ret = -EBUSY;
|
|
goto err_release_mem_region;
|
|
}
|
|
|
|
i2s->phys_base = i2s->mem->start;
|
|
|
|
i2s->clk_aic = clk_get(&pdev->dev, "aic");
|
|
if (IS_ERR(i2s->clk_aic)) {
|
|
ret = PTR_ERR(i2s->clk_aic);
|
|
goto err_iounmap;
|
|
}
|
|
|
|
i2s->clk_i2s = clk_get(&pdev->dev, "i2s");
|
|
if (IS_ERR(i2s->clk_i2s)) {
|
|
ret = PTR_ERR(i2s->clk_i2s);
|
|
goto err_clk_put_aic;
|
|
}
|
|
|
|
platform_set_drvdata(pdev, i2s);
|
|
ret = snd_soc_register_dai(&pdev->dev, &jz4740_i2s_dai);
|
|
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "Failed to register DAI\n");
|
|
goto err_clk_put_i2s;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_clk_put_i2s:
|
|
clk_put(i2s->clk_i2s);
|
|
err_clk_put_aic:
|
|
clk_put(i2s->clk_aic);
|
|
err_iounmap:
|
|
iounmap(i2s->base);
|
|
err_release_mem_region:
|
|
release_mem_region(i2s->mem->start, resource_size(i2s->mem));
|
|
err_free:
|
|
kfree(i2s);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int __devexit jz4740_i2s_dev_remove(struct platform_device *pdev)
|
|
{
|
|
struct jz4740_i2s *i2s = platform_get_drvdata(pdev);
|
|
|
|
snd_soc_unregister_dai(&pdev->dev);
|
|
|
|
clk_put(i2s->clk_i2s);
|
|
clk_put(i2s->clk_aic);
|
|
|
|
iounmap(i2s->base);
|
|
release_mem_region(i2s->mem->start, resource_size(i2s->mem));
|
|
|
|
platform_set_drvdata(pdev, NULL);
|
|
kfree(i2s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver jz4740_i2s_driver = {
|
|
.probe = jz4740_i2s_dev_probe,
|
|
.remove = __devexit_p(jz4740_i2s_dev_remove),
|
|
.driver = {
|
|
.name = "jz4740-i2s",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
static int __init jz4740_i2s_init(void)
|
|
{
|
|
return platform_driver_register(&jz4740_i2s_driver);
|
|
}
|
|
module_init(jz4740_i2s_init);
|
|
|
|
static void __exit jz4740_i2s_exit(void)
|
|
{
|
|
platform_driver_unregister(&jz4740_i2s_driver);
|
|
}
|
|
module_exit(jz4740_i2s_exit);
|
|
|
|
MODULE_AUTHOR("Lars-Peter Clausen, <lars@metafoo.de>");
|
|
MODULE_DESCRIPTION("Ingenic JZ4740 SoC I2S driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:jz4740-i2s");
|