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

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Date:	Wed, 10 Aug 2016 16:17:30 +0100
From:	Marc Zyngier <marc.zyngier@....com>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Jon Hunter <jonathanh@...dia.com>,
	John Stultz <john.stultz@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	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 10/08/16 14:50, Linus Walleij wrote:
> On Wed, Aug 10, 2016 at 11:41 AM, Marc Zyngier <marc.zyngier@....com> wrote:
> 
>> Is this platform related to the Dragonboard 410C? I've got one from
>> Sudeep, and it seems to work fine (though I've spotted a couple of
>> gotchas in the DT).
> 
> Nopes this is the ARMv7 APQ8060, the original (first!) dragonboard.
> https://dflund.se/~triad/krad/dragonboard/
> 
> (You know me, I always use the odd hardware nobody else use...)

Guess what, I just found this exact sucker in the pile of
"junk we won't ever use because it can't run mainline".
I even booted one of your test images on it.

Do you have a tree I can clone directly, with all the ugly patches
applied?

> 
>> Do you see this symptom on all chained interrupts? Or just this
>> particular one?
> 
> This appears on all IRQs on the PM (MFD) ASIC.

These interrupts?

197:          1          0    pm8xxx  50 Edge      pmic8xxx_pwrkey_release
198:          1          0    pm8xxx  51 Edge      pmic8xxx_pwrkey_press
199:          8          0    pm8xxx  74 Edge      pmic-keypad
200:          0          0    pm8xxx  75 Edge      pmic-keypad-stuck
201:          0          0    pm8xxx  39 Edge      pm8xxx_rtc_alarm

How is the interrupt topology built? pm8085 -> tlmm -> GIC?

Thanks,

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