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

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Message-ID: <20160805181253.GA18546@buildbox>
Date:	Fri, 5 Aug 2016 11:12:53 -0700
From:	John Stultz <john.stultz@...aro.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Jon Hunter <jonathanh@...dia.com>,
	Marc Zyngier <marc.zyngier@....com>,
	lkml <linux-kernel@...r.kernel.org>,
	Bjorn Andersson <bjorn.andersson@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [Regression] "irqdomain: Don't set type when mapping an IRQ"
 breaks nexus7 gpio buttons

On Sat, Jul 30, 2016 at 1:07 AM, Thomas Gleixner <tglx@...utronix.de> wrote:
> 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?

I'm not seeing anything about problematic type matching in the dmesg.

I've also added LinusW's patches but that didn't seem to help either.

dmesg attached.

thanks
-john

View attachment "flo-noirq.dmesg" of type "text/plain" (23257 bytes)