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ASoC: Factor out 7 bit register 9 bit data SPI write

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This converts all the Wolfson drivers using this format (the only devices
that do) except WM8753 to use it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2009-07-10 23:28:16 +01:00
parent 8d50e447d1
commit 27ded041f0
6 changed files with 36 additions and 128 deletions
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25
sound/soc/codecs/wm8510.c
View File

@ -737,30 +737,6 @@ static struct spi_driver wm8510_spi_driver = {
.probe = wm8510_spi_probe,
.remove = __devexit_p(wm8510_spi_remove),
};
static int wm8510_spi_write(struct spi_device *spi, const char *data, int len)
{
struct spi_transfer t;
struct spi_message m;
u8 msg[2];
if (len <= 0)
return 0;
msg[0] = data[0];
msg[1] = data[1];
spi_message_init(&m);
memset(&t, 0, (sizeof t));
t.tx_buf = &msg[0];
t.len = len;
spi_message_add_tail(&t, &m);
spi_sync(spi, &m);
return len;
}
#endif /* CONFIG_SPI_MASTER */
static int wm8510_probe(struct platform_device *pdev)
@ -790,7 +766,6 @@ static int wm8510_probe(struct platform_device *pdev)
#endif
#if defined(CONFIG_SPI_MASTER)
if (setup->spi) {
codec->hw_write = (hw_write_t)wm8510_spi_write;
ret = spi_register_driver(&wm8510_spi_driver);
if (ret != 0)
printk(KERN_ERR "can't add spi driver");

25
sound/soc/codecs/wm8728.c
View File

@ -425,30 +425,6 @@ static struct spi_driver wm8728_spi_driver = {
.probe = wm8728_spi_probe,
.remove = __devexit_p(wm8728_spi_remove),
};
static int wm8728_spi_write(struct spi_device *spi, const char *data, int len)
{
struct spi_transfer t;
struct spi_message m;
u8 msg[2];
if (len <= 0)
return 0;
msg[0] = data[0];
msg[1] = data[1];
spi_message_init(&m);
memset(&t, 0, (sizeof t));
t.tx_buf = &msg[0];
t.len = len;
spi_message_add_tail(&t, &m);
spi_sync(spi, &m);
return len;
}
#endif /* CONFIG_SPI_MASTER */
static int wm8728_probe(struct platform_device *pdev)
@ -478,7 +454,6 @@ static int wm8728_probe(struct platform_device *pdev)
#endif
#if defined(CONFIG_SPI_MASTER)
if (setup->spi) {
codec->hw_write = (hw_write_t)wm8728_spi_write;
ret = spi_register_driver(&wm8728_spi_driver);
if (ret != 0)
printk(KERN_ERR "can't add spi driver");

25
sound/soc/codecs/wm8731.c
View File

@ -591,30 +591,6 @@ static void wm8731_unregister(struct wm8731_priv *wm8731)
}
#if defined(CONFIG_SPI_MASTER)
static int wm8731_spi_write(struct spi_device *spi, const char *data, int len)
{
struct spi_transfer t;
struct spi_message m;
u8 msg[2];
if (len <= 0)
return 0;
msg[0] = data[0];
msg[1] = data[1];
spi_message_init(&m);
memset(&t, 0, (sizeof t));
t.tx_buf = &msg[0];
t.len = len;
spi_message_add_tail(&t, &m);
spi_sync(spi, &m);
return len;
}
static int __devinit wm8731_spi_probe(struct spi_device *spi)
{
struct snd_soc_codec *codec;
@ -626,7 +602,6 @@ static int __devinit wm8731_spi_probe(struct spi_device *spi)
codec = &wm8731->codec;
codec->control_data = spi;
codec->hw_write = (hw_write_t)wm8731_spi_write;
codec->dev = &spi->dev;
dev_set_drvdata(&spi->dev, wm8731);

25
sound/soc/codecs/wm8750.c
View File

@ -911,30 +911,6 @@ static struct spi_driver wm8750_spi_driver = {
.probe = wm8750_spi_probe,
.remove = __devexit_p(wm8750_spi_remove),
};
static int wm8750_spi_write(struct spi_device *spi, const char *data, int len)
{
struct spi_transfer t;
struct spi_message m;
u8 msg[2];
if (len <= 0)
return 0;
msg[0] = data[0];
msg[1] = data[1];
spi_message_init(&m);
memset(&t, 0, (sizeof t));
t.tx_buf = &msg[0];
t.len = len;
spi_message_add_tail(&t, &m);
spi_sync(spi, &m);
return len;
}
#endif
static int wm8750_probe(struct platform_device *pdev)
@ -973,7 +949,6 @@ static int wm8750_probe(struct platform_device *pdev)
#endif
#if defined(CONFIG_SPI_MASTER)
if (setup->spi) {
codec->hw_write = (hw_write_t)wm8750_spi_write;
ret = spi_register_driver(&wm8750_spi_driver);
if (ret != 0)
printk(KERN_ERR "can't add spi driver");

25
sound/soc/codecs/wm8988.c
View File

@ -979,30 +979,6 @@ static struct i2c_driver wm8988_i2c_driver = {
#endif
#if defined(CONFIG_SPI_MASTER)
static int wm8988_spi_write(struct spi_device *spi, const char *data, int len)
{
struct spi_transfer t;
struct spi_message m;
u8 msg[2];
if (len <= 0)
return 0;
msg[0] = data[0];
msg[1] = data[1];
spi_message_init(&m);
memset(&t, 0, (sizeof t));
t.tx_buf = &msg[0];
t.len = len;
spi_message_add_tail(&t, &m);
spi_sync(spi, &m);
return len;
}
static int __devinit wm8988_spi_probe(struct spi_device *spi)
{
struct wm8988_priv *wm8988;
@ -1013,7 +989,6 @@ static int __devinit wm8988_spi_probe(struct spi_device *spi)
return -ENOMEM;
codec = &wm8988->codec;
codec->hw_write = (hw_write_t)wm8988_spi_write;
codec->control_data = spi;
codec->dev = &spi->dev;

39
sound/soc/soc-cache.c
View File

@ -12,6 +12,7 @@
*/
#include <linux/i2c.h>
#include <linux/spi/spi.h>
#include <sound/soc.h>
static unsigned int snd_soc_7_9_read(struct snd_soc_codec *codec,
@ -46,6 +47,36 @@ static int snd_soc_7_9_write(struct snd_soc_codec *codec, unsigned int reg,
return -EIO;
}
#if defined(CONFIG_SPI_MASTER)
static int snd_soc_7_9_spi_write(void *control_data, const char *data,
int len)
{
struct spi_device *spi = control_data;
struct spi_transfer t;
struct spi_message m;
u8 msg[2];
if (len <= 0)
return 0;
msg[0] = data[0];
msg[1] = data[1];
spi_message_init(&m);
memset(&t, 0, (sizeof t));
t.tx_buf = &msg[0];
t.len = len;
spi_message_add_tail(&t, &m);
spi_sync(spi, &m);
return len;
}
#else
#define snd_soc_7_9_spi_write NULL
#endif
static int snd_soc_8_16_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
@ -115,12 +146,12 @@ static struct {
int addr_bits;
int data_bits;
int (*write)(struct snd_soc_codec *codec, unsigned int, unsigned int);
int (*spi_write)(void *, const char *, int);
unsigned int (*read)(struct snd_soc_codec *, unsigned int);
unsigned int (*i2c_read)(struct snd_soc_codec *, unsigned int);
} io_types[] = {
{ 7, 9, snd_soc_7_9_write, snd_soc_7_9_read },
{ 8, 16,
snd_soc_8_16_write, snd_soc_8_16_read,
{ 7, 9, snd_soc_7_9_write, snd_soc_7_9_spi_write, snd_soc_7_9_read },
{ 8, 16, snd_soc_8_16_write, NULL, snd_soc_8_16_read,
snd_soc_8_16_read_i2c },
};
@ -177,6 +208,8 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
break;
case SND_SOC_SPI:
if (io_types[i].spi_write)
codec->hw_write = io_types[i].spi_write;
break;
}