Hello Takashi,
Below is a patch for ice1724 I2C read code.
Thanks,
Pavel.
Signed-off-by: Pavel Hofman <dustin@xxxxxxxxx>
* adding i2c busy wait before sending device address to prevent reading
bogus data
diff -r 7f4b25ff79d6 pci/ice1712/ice1724.c
--- a/pci/ice1712/ice1724.c Fri Nov 30 17:59:25 2007 +0100
+++ b/pci/ice1712/ice1724.c Fri Nov 30 21:17:36 2007 +0100
@@ -1958,6 +1958,7 @@ unsigned char snd_vt1724_read_i2c(struct
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);
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