Subject: [PATCH v8 1/4] irqchip: gic: Support hierarchy irq domain.

From: [email-masked] (Marc Zyngier)
Date: Tue, 02 Dec 2014 13:37:59 +0000

On 02/12/14 13:27, Geert Uytterhoeven wrote:
> On Tue, Nov 25, 2014 at 9:04 AM, Yingjoe Chen <[email-masked]> wrote:
>> Add support to use gic as a parent for stacked irq domain.
>>
>> Signed-off-by: Yingjoe Chen <[email-masked]>
> 
> This change (which is now in -next as commit 9a1091ef0017c40a) breaks
> booting on r8a7740/armadillo-legacy.
> 
> It hangs because the timers cannot get their interrupts:
> 
> console [tty0] enabled
>  sh-tmu.0: ch0: used for clock events
>  sh-tmu.0: ch0: used for periodic clock events
>  sh-tmu.0: ch0: failed to request irq 230
>  sh-tmu.0: ch1: used as clock source
>  sh-cmt-48.1: ch0: failed to request irq 90
>  sh-cmt-48.1: ch0: registration failed
> earlytimer: unable to probe sh-cmt-48 early.
> Calibrating delay loop...

Grmbl... Are you, by any (lack of) chance, using a setup where the GIC
is probed via DT, but the timers have their IRQs hardcoded?

	M.
-- 
Jazz is not dead. It just smells funny...