On Mon, 7 Jul 2014, Tony Lindgren wrote:
With v3.16-rc4 the PM features for omap3 should be working finally for device tree based booting. At lest beaglexm and 3xxevm should work.
Maybe you are using legacy booting path to idle the UARTs still?
FYI, I'm doing this to find the UART entries:
uarts=$(find /sys/class/tty/ttyO*/device/power/ -type d) for uart in $uarts; do echo 3000 > $uart/autosuspend_delay_ms done
uarts=$(find /sys/class/tty/ttyO*/power/ -type d) for uart in $uarts; do echo enabled > $uart/wakeup echo auto > $uart/control done
echo 1 > /sys/kernel/debug/pm_debug/enable_off_mode
OK thanks, I'll take a close look at it. It's not using the legacy paths, but based on a glance at the 37xxevm logs, it looks like the bus address of the UART isn't right.
- Paul