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From:   Fabio Estevam <festevam@gmail.com>
Date:   Wed, 19 Sep 2018 09:11:03 -0300
Message-ID: <CAOMZO5CEh-UQA=QiyWMadkpp=LcWbGs6zaaXXqa9cYQgrTLiDA@mail.gmail.com>
Subject: Re: [PATCH 1/2] video: ssd1307fb: Use gpiod_set_value_cansleep() for reset
To:     =?UTF-8?B?TWljaGFsIFZva8OhxI0=?= <michal.vokac@ysoft.com>
Cc:     Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        Shawn Guo <shawnguo@kernel.org>,
        Fabio Estevam <fabio.estevam@nxp.com>,
        Rob Herring <robh+dt@kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        linux-fbdev@vger.kernel.org
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Hi Michal,

On Wed, Sep 19, 2018 at 6:18 AM, Michal Vok=C3=A1=C4=8D <michal.vokac@ysoft=
.com> wrote:
> The reset signal can be produced by GPIO expander that can sleep.
> In that case the probe function fails. Allow using GPIO expanders for
> the reset signal by using the non-atomic gpiod_set_value_cansleep()
> function.
>
> Signed-off-by: Michal Vok=C3=A1=C4=8D <michal.vokac@ysoft.com>

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>