From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wolfram Sang <wsa@the-dreams.de>
Subject: Re: [PATCH v2] i2c: riic: Clear NACK in tend isr
Date: Sat, 28 Sep 2019 20:24:29 +0200
Message-ID: <20190928182423.GC12219@kunai>
References: <20190926121909.1795-1-chris.brandt@renesas.com>
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To: Chris Brandt <chris.brandt@renesas.com>
Cc: linux-i2c@vger.kernel.org, linux-renesas-soc@vger.kernel.org, stable@vger.kernel.org, Chien Nguyen <chien.nguyen.eb@rvc.renesas.com>
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On Thu, Sep 26, 2019 at 07:19:09AM -0500, Chris Brandt wrote:
> The NACKF flag should be cleared in INTRIICNAKI interrupt processing as
> description in HW manual.
>=20
> This issue shows up quickly when PREEMPT_RT is applied and a device is
> probed that is not plugged in (like a touchscreen controller). The result
> is endless interrupts that halt system boot.
>=20
> Fixes: 310c18a41450 ("i2c: riic: add driver")
> Cc: stable@vger.kernel.org
> Reported-by: Chien Nguyen <chien.nguyen.eb@rvc.renesas.com>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
>=20

Applied to for-current, thanks!


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