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| author | Pavel Hofman <dustin@seznam.cz> | 2007-12-03 12:37:17 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 17:29:30 +0100 |
| commit | acec30ffffe1eee07e3202cff03e7ca8350d250f (patch) | |
| tree | d5ab718a21d0237202ec87543ed438ded72c120e | |
| parent | 109c53f840e551d6e99ecfd8b0131a968332c89f (diff) | |
| download | linux-acec30ffffe1eee07e3202cff03e7ca8350d250f.tar.bz2 | |
[ALSA] I2C fix for ice1724
adding i2c busy wait before sending device address to prevent reading
bogus data.
Signed-off-by: Pavel Hofman <dustin@seznam.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
| -rw-r--r-- | sound/pci/ice1712/ice1724.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c index 357bdbe21c8f..b7a1d93cf002 100644 --- a/sound/pci/ice1712/ice1724.c +++ b/sound/pci/ice1712/ice1724.c @@ -1958,6 +1958,7 @@ unsigned char snd_vt1724_read_i2c(struct snd_ice1712 *ice, unsigned char val; mutex_lock(&ice->i2c_mutex); + wait_i2c_busy(ice); outb(addr, ICEREG1724(ice, I2C_BYTE_ADDR)); outb(dev & ~VT1724_I2C_WRITE, ICEREG1724(ice, I2C_DEV_ADDR)); wait_i2c_busy(ice); |