Timo Juhani Lindfors wrote:
Nils Faerber <[email protected]> writes:
Is this "sporadic", i.e. does this error occur sometimes and after the
error it works again?
Yes.
It could also be that if there is traffic on the serial line in the very
same moment when the frequency change occurs the UART looses its clock
I thought I set the clock permanently to 100 MHz when I ran
sudo sh -c "echo powersave >
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"
What kind of frequency changes are you talking about?
The serial clock reference depends on the cpu clock also. Take a look to
the cpufreq
notifier inside the samsung serial driver code. So when you change the
frequency you
can have trouble in the middle of frequenct change.
Michael
