linux-kernel - Re: [PATCH] pinctrl-baytrail: fix for irq descriptor conflict on ASUS T100TA

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Message-ID: <535B2250.2010509@linux.intel.com>
Date:	Sat, 26 Apr 2014 11:04:48 +0800
From:	"Jin, Yao" <yao.jin@...ux.intel.com>
To:	Adam Williamson <awilliam@...hat.com>,
	Linus Walleij <linus.walleij@...aro.org>
CC:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Benjamin Tissoires <benjamin.tissoires@...il.com>,
	Alan Cox <alan@...ux.intel.com>,
	Mathias Nyman <mathias.nyman@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] pinctrl-baytrail: fix for irq descriptor conflict on
 ASUS T100TA



On 2014/4/25 23:13, Adam Williamson wrote:
> On Fri, 2014-04-25 at 11:32 +0200, Linus Walleij wrote:
>> On Thu, Apr 24, 2014 at 11:33 PM, Adam Williamson <awilliam@...hat.com> wrote:
>>
>>> Well, I just ran another test too. I built a kernel (3.15rc2) with both
>>> v3 of Doug's SDIO device enumeration patch -
>>> http://dougvj.net/baytrail_gpio_quirk_v3.patch - and the new patch for
>>> the IRQ allocation issue by Thomas Gleixner,
>>> https://patchwork.kernel.org/patch/4051581/ . That kernel gives me a
>>> working touchscreen. Note that
>>> http://dougvj.net/baytrail_gpio_quirk_v3.patch includes both the blocks
>>> you mention (i.e. it adds INT33FC in both places).
>>>
>>> So, it really seems like for me at least, it's the combination of Doug's
>>> patch and your approach to fixing the IRQ allocation issue that breaks
>>> the touchscreen. Thomas' approach, even combined with Doug's patch,
>>> seems to work fine.
>>
>> Please make sure to provide a Tested-by: tag to Thomas so he
>> knows this is merge material.
> 
> Well, I'd rather someone test on the box that's actually affected by the
> IRQ allocation conflict lockups so we can confirm it actually fixes
> them :)
> 

I have tried the Thomas Gleixner's patch on 3.14.0 with i915 loading,
the irq conflict disappears.
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