linux-kernel - Re: [PATCH] pinctrl: intel: Clear interrupt status in unmask callback

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Message-ID: <20190425091140.GS2654@lahna.fi.intel.com>
Date:   Thu, 25 Apr 2019 12:11:40 +0300
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     Kai-Heng Feng <kai.heng.feng@...onical.com>
Cc:     andriy.shevchenko@...ux.intel.com, linus.walleij@...aro.org,
        hotwater438@...anota.com, hdegoede@...hat.com,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pinctrl: intel: Clear interrupt status in unmask callback

On Mon, Apr 22, 2019 at 12:45:39PM +0800, Kai-Heng Feng wrote:
> Commit a939bb57cd47 ("pinctrl: intel: implement gpio_irq_enable") was
> added because clearing interrupt status bit is required to avoid
> unexpected behavior.
> 
> Turns out the unmask callback also needs the fix, which can solve weird
> IRQ triggering issues on I2C touchpad ELAN1200.
> 
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>

Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>