I really don’t know, I solved it by changing the power control of the Pcie interface:
echo 'on' > /sys/devices/platform/soc/11280000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/power/control
And then lowering the kernel log level to warning.
After one day of operation I got only 16 of these noisy messages which is good.
dmesg |grep save|wc -l
16