linux-kernel - Re: [PATCH] gpio/langwell: re-read the IRQ status register after each iteration

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Message-Id: <20120510223554.183F83E04A6@localhost>
Date:	Thu, 10 May 2012 16:35:54 -0600
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Linus Walleij <linus.walleij@...aro.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, linus.walleij@...ricsson.com,
	Julia Lawall <Julia.Lawall@...6.fr>
Subject: Re: [PATCH] gpio/langwell: re-read the IRQ status register after each iteration

On Thu, 10 May 2012 14:16:56 +0200, Linus Walleij <linus.walleij@...aro.org> wrote:
> On Thu, May 10, 2012 at 12:01 PM, Mika Westerberg
> <mika.westerberg@...ux.intel.com> wrote:
> 
> > Spotted by Grant Likely. The IRQ status register should be re-read after
> > each iteration. Otherwise the loop misses the interrupt if it gets raised
> > immediately after handled.
> >
> > Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
> > ---
> > This patch applies on top of my previous patch ("gpio: langwell: convert to
> > use irq_domain").
> 
> Oh yeah that thing I recognize!
> Acked-by: Linus Walleij <linus.walleij@...aro.org>

Applied, thanks.

g.

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