linux-kernel - Re: [PATCH] gpio-langwell: fix irq conflicts when DT is not used

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Date:	Wed, 15 May 2013 10:01:12 -0700
From:	David Cohen <david.a.cohen@...el.com>
To:	Mika Westerberg <mika.westerberg@...ux.intel.com>
CC:	grant.likely@...retlab.ca, linus.walleij@...aro.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gpio-langwell: fix irq conflicts when DT is not used

Hi Grant,

On 05/07/2013 09:34 AM, David Cohen wrote:
> On 05/07/2013 12:59 AM, Mika Westerberg wrote:
>> On Mon, May 06, 2013 at 04:11:03PM -0700, David Cohen wrote:
>>> When DT is not used IOAPIC does not register irq domain. As result
>>> IOAPIC won't care about gpio-langwell's virq and may cause conflict if
>>> an irq number is equal to gpio-langwell's virq mapped beforehand.
>>>
>>> This patch tells gpio_langwell to not ignore irq_base if != 0 and
>>> preferably use it to avoid the conflict.
>>>
>>> If DT is used, irq_base can safely be 0.
>>>
>>> Signed-off-by: David Cohen <david.a.cohen@...el.com>
>> Presuming that you have tested this on Medfield and it still works 
>> there.
>
> Medfield and Clovertrail :)
>
> Br, David
>
>>
>> Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>

Kindly ping :)
Comments?

Br, David

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