linux-kernel - Re: [PATCH v2] mfd: tc3589x: use simple irqdomain

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Message-ID: <20130122032513.GG7409@sortiz-mobl>
Date:	Tue, 22 Jan 2013 04:25:13 +0100
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Linus Walleij <linus.walleij@...ricsson.com>
Cc:	linux-kernel@...r.kernel.org, Anmar Oueja <anmar.oueja@...aro.org>,
	stable@...nel.org
Subject: Re: [PATCH v2] mfd: tc3589x: use simple irqdomain

Hi Linus,

On Wed, Jan 02, 2013 at 02:40:14PM +0100, Linus Walleij wrote:
> This fixes a regression in the TC3589x driver introduced in
> commit 15e27b1088245a2de3b7d09d39cd209212eb16af
> "mfd: Provide the tc3589x with its own IRQ domain"
> 
> If a system with a TC3589x expander is booted and a base
> IRQ is passed from platform data, a legacy domain will
> be used. However, since the Ux500 is now switched to use
> SPARSE_IRQ, no descriptors get allocated on-the-fly,
> and we get a crash.
> 
> Fix this by switching to using the simple irqdomain that
> will handle this uniformly and also allocates descriptors
> explicitly.
> 
> Also fix two small whitespace errors in the vicinity while
> we're at it.
> 
> Cc: stable@...nel.org
> Acked-by: Lee Jones <lee.jones@...aro.org>
> Signed-off-by: Linus Walleij <linus.walleij@...ricsson.com>
> ---
> ChangeLog v1->v2:
> - Update commit message after comments from Lee, add ACK, no
>   changes to the patche per se.
> 
> Hi Sam, this should go into the fixes for stable unless issues
> are found, it fixes a regression for us.
Applied to my for-linus branch. On its way to 3.8.

Cheers,
Samuel.

-- 
Intel Open Source Technology Centre
http://oss.intel.com/
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