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

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Message-ID: <20130507075904.GE20562@intel.com>
Date:	Tue, 7 May 2013 10:59:04 +0300
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	David Cohen <david.a.cohen@...el.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

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.

Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
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