linux-kernel - Re: [PATCH] gpio/lynxpoint: check if the interrupt is enabled in IRQ handler

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Message-ID: <CACRpkda=C3+pkVsVbZAkasxyWGedNsb7oAKTt4ApnJ4Q+k9BCw@mail.gmail.com>
Date:	Fri, 11 Oct 2013 12:57:37 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	Mathias Nyman <mathias.nyman@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] gpio/lynxpoint: check if the interrupt is enabled in IRQ handler

On Tue, Oct 1, 2013 at 4:35 PM, Mika Westerberg
<mika.westerberg@...ux.intel.com> wrote:

> Checking LP_INT_STAT is not enough in the interrupt handler because its
> contents get updated regardless of whether the pin has interrupt enabled or
> not. This causes the driver to loop forever for GPIOs that are pulled up.
>
> Fix this by checking the interrupt enable bit for the pin as well.
>
> Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>

Patch applied for fixes with Mathias ACK.

Should this be tagged for -stable as well?

Yours,
Linus Walleij
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