Eduardo Valentin <eduardo.valentin@xxxxxxxxx> writes: > On Tue, Oct 13, 2009 at 06:25:17PM +0200, ext Kevin Hilman wrote: >> Eduardo Valentin <eduardo.valentin@xxxxxxxxx> writes: >> >> > Hello Amit, >> > >> > On Mon, Oct 12, 2009 at 09:23:47PM +0200, ext Amit Kucheria wrote: >> >> Hi, >> >> >> >> I am testing twl4030 script optimisations on the current PM branch. But I am >> >> seeing the board (RX51) freeze when CPU_IDLE is enabled in the config. >> >> >> >> Is it known to work on other boards? >> > >> > I'm actually seeing this same behavior. But the board actually does not >> > freeze. If you keep a key pressed of send a sysrq through serial line >> > then you eventually get it back. >> > >> > It seams to be something related to serial driver and wakeup ? >> > >> >> Do you see this problem after doing >> >> # echo 1 > /debug/pm_debug/sleep_while_idle >> > > No I don't. The problem is gone it seams. > > similar effect happens if we > > # echo 0 > /sys/devices/platform/serial8250.2/sleep_timeout > > Of course, this would prevent device go to sleep I guess. > Yes, there is a problem with UART3 (in PER) going idle independently of CORE/MPU that I have not yet found. Kevin -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
