omap3_intc irqctrl_clear isn't called at all
omap3_intc irqctrl_clear isn't called at all

(that's suited to software interrupts, devices deasserts irqs
themselves)
+ minor bit optimizations, not enabling bits already set
abusalimov/embox,mike2390/embox,gzoom13/embox,gzoom13/embox,abusalimov/embox,mike2390/embox,vrxfile/embox-trik,gzoom13/embox,Kefir0192/embox,Kakadu/embox,mike2390/embox,vrxfile/embox-trik,Kefir0192/embox,embox/embox,gzoom13/embox,vrxfile/embox-trik,abusalimov/embox,Kakadu/embox,mike2390/embox,embox/embox,embox/embox,abusalimov/embox,mike2390/embox,gzoom13/embox,Kakadu/embox,gzoom13/embox,Kakadu/embox,Kefir0192/embox,vrxfile/embox-trik,Kakadu/embox,Kakadu/embox,vrxfile/embox-trik,embox/embox,Kakadu/embox,abusalimov/embox,mike2390/embox,vrxfile/embox-trik,embox/embox,Kefir0192/embox,abusalimov/embox,vrxfile/embox-trik,mike2390/embox,embox/embox,Kefir0192/embox,Kefir0192/embox,gzoom13/embox,Kefir0192/embox