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From:   "Sa, Nuno" <Nuno.Sa@analog.com>
To:     Jonathan Cameron <jic23@kernel.org>,
        Cosmin Tanislav <demonsingur@gmail.com>
CC:     Lars-Peter Clausen <lars@metafoo.de>,
        "Hennerich, Michael" <Michael.Hennerich@analog.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        "linux-iio@vger.kernel.org" <linux-iio@vger.kernel.org>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "Tanislav, Cosmin" <Cosmin.Tanislav@analog.com>
Subject: RE: [PATCH v2 2/5] iio: temperature: ltc2983: make bulk write buffer
 DMA-safe
Thread-Topic: [PATCH v2 2/5] iio: temperature: ltc2983: make bulk write buffer
 DMA-safe
Thread-Index: AQHY5GLM8zztWnyVdkiJEoSUdoRPya4b8RuAgAErY8A=
Date:   Mon, 24 Oct 2022 06:35:15 +0000
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References: <20221020090257.1717053-1-demonsingur@gmail.com>
        <20221020090257.1717053-3-demonsingur@gmail.com>
 <20221023134241.79c52280@jic23-huawei>
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> -----Original Message-----
> From: Jonathan Cameron <jic23@kernel.org>
> Sent: Sunday, October 23, 2022 2:43 PM
> To: Cosmin Tanislav <demonsingur@gmail.com>
> Cc: Sa, Nuno <Nuno.Sa@analog.com>; Lars-Peter Clausen
> <lars@metafoo.de>; Hennerich, Michael <Michael.Hennerich@analog.com>;
> Rob Herring <robh+dt@kernel.org>; Krzysztof Kozlowski
> <krzysztof.kozlowski+dt@linaro.org>; linux-iio@vger.kernel.org;
> devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; Tanislav, Cosmi=
n
> <Cosmin.Tanislav@analog.com>
> Subject: Re: [PATCH v2 2/5] iio: temperature: ltc2983: make bulk write bu=
ffer
> DMA-safe
>=20
> [External]
>=20
> On Thu, 20 Oct 2022 12:02:54 +0300
> Cosmin Tanislav <demonsingur@gmail.com> wrote:
>=20
> > From: Cosmin Tanislav <cosmin.tanislav@analog.com>
> >
> > regmap_bulk_write() does not guarantee implicit DMA-safety,
> > even though the current implementation duplicates the given
> > buffer. Do not rely on it.
> >
> > Fixes: f110f3188e56 ("iio: temperature: Add support for LTC2983")
> > Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com>
> LGTM.
>=20
> As you right observed this is only sort of a fix because right now we
> are fine anyway, so in the interests of getting the rest of the series
> upstream quicker I'll take this one for the next merge window along
> with the rest of the set.
>=20
> Thanks,
>=20
> Jonathan
>=20

Not sure if you already applied this... Anyways:

Reviewed-by: Nuno S=E1 <nuno.sa@analog.com>