> -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Woodruff, Richard > Sent: Friday, October 16, 2009 9:40 AM > To: Tero Kristo; [email protected] > Cc: Jouni Hogander > Subject: RE: [PATCH 12/17] OMAP2/3: Do not enable AUTOIDLE in interrupt > controller > > > > From: [email protected] [mailto:linux-omap- > > [email protected]] On Behalf Of Tero Kristo > > Sent: Friday, October 16, 2009 5:49 AM > > > OMAP interrupt controller goes to unknown state when there is right > > combination of l3,l4 sleep/wake-up transitions, l4 autoidle in > > interrupt controller and some interrupt. When this happens, interrupts > > are not delivered to ARM anymore and ARM will remain in WFI (wait for > > interrupt) until interrupt controller is forced to wake-up > > (i.e. lauterbach). Disable AUTOIDLE in INTC for now. > > Optimal work around enables and disables this around WFI.
On one of the custom board the power measured didn't show any major impact, with just one time disabling of INTC-AUTOIDL. However, optimizing this WA looks good though. I did give it a try, Disabling/enabling INTC autoidle around WFI on custom board, works well but didn't get chance to measure the numbers. Regards, -Girish -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
