linux-kernel - Re: [Regression] "irqdomain: Don't set type when mapping an IRQ" breaks nexus7 gpio buttons

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Date:	Sat, 30 Jul 2016 10:07:06 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	John Stultz <john.stultz@...aro.org>
cc:	Jon Hunter <jonathanh@...dia.com>,
	Marc Zyngier <marc.zyngier@....com>,
	lkml <linux-kernel@...r.kernel.org>,
	Bjorn Andersson <bjorn.andersson@...aro.org>
Subject: Re: [Regression] "irqdomain: Don't set type when mapping an IRQ"
 breaks nexus7 gpio buttons

On Fri, 29 Jul 2016, John Stultz wrote:
> Hey Jon,
>   So after rebasing my nexus7 patch stack onto pre-4.8-rc1 tree, I
> noticed the power/volume buttons stopped working.
> 
> I did a manual rebased bisection and chased it down to your commit
> 1e2a7d78499e ("irqdomain: Don't set type when mapping an IRQ").
> 
> Reverting that patch makes things work again, so I wanted to see if
> there was any debugging info I could provide to try to help narrow
> down the problem here. (Sorry, I'd tinker myself with it some and try
> to debug the issue, but after burning my friday night on this, I'm
> eager to get away from the keyboard for the weekend).

dmesg should contain debug output which yells about non matching types. Can
you provide that?

Thanks,

	tglx