On Tue, Jun 20, 2017 at 03:03:33PM +0000, Giulio Moro wrote: > Thanks Len, > > > Turns out that in that case smartidle was enabled and the gpio bank > > would go into sleep mode and it took 4ms to wake up before the irq would > > show up. Turning off the smartidle on the gpio bank so that it never > > could go to sleep solved the problem. Maybe this TI chip has a similar > > feature. > > I do not think it is the case in my test: the GPIO banks are on (the pins get > exported before the module is loaded), and I would not expect it to go to > sleep in the few ms between interrupts in my test.
Based on my experience with the newer TI, it will. For the auto power saving bit, miliseconds is a long time. I fixed it by setting the gpio-bank to ti,no-idle in the dtb. -- Len Sorensen _______________________________________________ Xenomai mailing list [email protected] https://xenomai.org/mailman/listinfo/xenomai
