[i2c] AU1550 I2C driver - why not wait for bus free?

[Jean Delvare]

Hi Sergei,

On Wed, 02 Apr 2008 13:40:46 +0400, Sergei Poselenov wrote:
> I have a question about AU1550 I2C driver.
> Why the driver starts transfer regardless of the state
> of I2C bus? Shouldn't it wait for the "bus busy" bit
> in smbstat to become zero before setting the
> "master start" bit?
> 
> I see, in the 2.4 version of the driver the above logic
> was present, but avoided in 2.6.

I wasn't aware that there was a 2.4 i2c-au1550 driver... I don't see it
in mainline at least.

Checking for the bus busy bit before starting a transaction sounds like
a good idea, feel free to submit a patch implementing this and we'll
review it.

-- 
Jean Delvare