• Tony Lindgren's avatar
    omap: Disable serial port autoidle by default · 301fe8ee
    Tony Lindgren authored
    Currently the omap serial clocks are autoidled after 5 seconds.
    However, this causes lost characters on the serial ports. As this
    is considered non-standard behaviour for Linux, disable the timeout.
    
    Note that this will also cause blocking of any deeper omap sleep
    states.
    
    To enable the autoidling of the serial ports, do something like
    this for each serial port:
    
    # echo 5 > /sys/devices/platform/serial8250.0/sleep_timeout
    # echo 5 > /sys/devices/platform/serial8250.1/sleep_timeout
    ...
    Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
    Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
    301fe8ee
serial.c 16.9 KB