Messages in this thread | | | Date | Wed, 13 Aug 2014 09:37:23 -0700 | From | Tony Lindgren <> | Subject | Re: [PATCH 5/5] tty: serial: Add 8250-core based omap driver |
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* Sebastian Andrzej Siewior <bigeasy@linutronix.de> [140813 09:23]: > On 07/21/2014 11:35 AM, Tony Lindgren wrote: > > > Looks like the following is needed to avoid the error, no idea why.. > > But this is what we also do in omap-serial.c. It may be needed in > > other places too? > > Yes, there was a third one on shutdown.
OK
> > Also, no luck yet on runtime PM. If the console is enabled omap won't > > idle, and if no serial console is enabled, it just hangs. Will try > > to debug this part further, it may be also related to the above. > > My beaglebone xm won't do idle: > > | omap3_pm_off_mode_enable: Core OFF disabled due to errata i583 > > but it would if it could, right? That means that I can't test the wake > via UART on this one?
Hmm OK yes that's disabled for some earlier ES revisions. I guess you could comment out the limitations for PM_SDRC_WAKEUP_ERRATUM_i583 in both cpuidle34xx.c and pm34xx.c and see if off-idle is usable for your tests :) It might be flakey but still usable for testing.
> So I will try to fix the tx-pm, fold patches and then prepare another > batch.
OK great, let me know if you need more help.
> And I could verify that DMA works on that omap3 :)
OK
Regards,
Tony
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