RE: [PATCH 12/17] OMAP2/3: Do not enable AUTOIDLE in interrupt controller

Woodruff, Richard
2009-10-16T14:40:46Z

> From: linux-omap-owner@vger.kernel.org [mailto:linux-omap-
> owner@vger.kernel.org] 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.

Regards,
Richard W.