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Commit acec30ff authored by Pavel Hofman's avatar Pavel Hofman Committed by Jaroslav Kysela
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[ALSA] I2C fix for ice1724 



adding i2c busy wait before sending device address to prevent reading
bogus data.

Signed-off-by: default avatarPavel Hofman <dustin@seznam.cz>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent 109c53f8

sound/pci/ice1712/ice1724.c

+1 −0
Original line number Diff line number Diff line
@@ -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);