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

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Message-ID: <CACRpkdZhzSbf4rNf57MFcZZraUfZ0xiJxs2TzPHQaYz4x4X10Q@mail.gmail.com>
Date:	Mon, 14 Jan 2013 23:28:29 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, Anmar Oueja <anmar.oueja@...aro.org>,
	stable@...nel.org, Fabio Baltieri <fabio.baltieri@...aro.org>
Subject: Re: [PATCH v2] mfd: tc3589x: use simple irqdomain

On Wed, Jan 2, 2013 at 2:40 PM, Linus Walleij
<linus.walleij@...ricsson.com> 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.

Ping on this regression fix patch as well...

Yours,
Linus Walleij
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