On Saturday 28 March 2009, Mark A. Greer wrote:
> +       .gpio_irq               = IRQ_DM355_GPIOBNK0,

Speaking of which ... the EDMA channels used for those
GPIO banks should basically not be used as hardware
triggers.  But they can work just fine for software
triggering, flavors of completion IRQs, chaining, etc.

The same is *probably* true for the non-banked GPIO
IRQs, which nobody seems to have found out yet how to
use.  (As in, GPIO-2 reported directly through AINTC,
with level trigger options.)

Not needed now ... but at some point I think the EDMA
init logic might want have a way that platform code can
tell it "here are some more channels you can hand out
whenever hardware triggering doesn't matter".

(More examples include the clocksource/clockevent
and watchdog EDMA channels, and surely a few others.)


_______________________________________________
Davinci-linux-open-source mailing list
[email protected]
http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source

Reply via email to