Re: i2c-mxs woes

[Marek Vasut <marex-ynQEQJNshbs@public.gmane.org>]

Dear Alexandre Belloni,

> Hi,
> 
> I'm having some issues with the i2c-mxs driver in 3.9. Marek already
> pointed me to the patches from Lucas and that greatly improved the
> situation.
> 
> For the context, my board has three nau7802 adcs, connected to a gpio
> i2c-muxer, connected to i2c1.
> 
> Here is what I observe:
> 
> On 3.9:
> 
> # time cat /sys/bus/iio/devices/iio:device1/in_voltage0_raw
> 2620
> real	0m 7.08s
> user	0m 0.00s
> sys	0m 0.02s
> # time cat /sys/bus/iio/devices/iio:device1/in_voltage1_raw
> 2623
> real	0m 6.07s
> user	0m 0.01s
> sys	0m 0.01s
> #

Looks like there's a fixes 7-second delay. Like a timeout maybe?

Best regards,
Marek Vasut