linux-kernel - Re: [PATCH] pinctrl: at91: choose appropriate handler for level interrupts

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Date:	Thu, 01 Aug 2013 13:04:12 +0200
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Boris BREZILLON <b.brezillon@...rkiz.com>
CC:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Ludovic Desroches <ludovic.desroches@...el.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] pinctrl: at91: choose appropriate handler for level interrupts

Hi,

On 20/07/2013 16:51, Boris BREZILLON wrote:
> The current implementation handle both edge and level interrupts with the
> 'handle_simple_irq' handler.
>
> Level interrupts are active as long as the pin stays at the configured
> level (low or high). In this case we have to use 'handle_level_irq' which
> mask the interrupt until the handle has treated it.
>
> Signed-off-by: Boris BREZILLON <b.brezillon@...rkiz.com>

This solves the issue on my side.

Tested-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>


-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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