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Date:   Thu, 29 Aug 2019 21:08:39 +0200
From:   Wolfram Sang <wsa@the-dreams.de>
To:     "Adamski, Krzysztof (Nokia - PL/Wroclaw)" 
        <krzysztof.adamski@nokia.com>
Cc:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>,
        "Sverdlin, Alexander (Nokia - DE/Ulm)" <alexander.sverdlin@nokia.com>
Subject: Re: [PATCH v3] i2c: axxia: support slave mode
Message-ID: <20190829190839.GI3740@ninjato>
References: <20190819090700.GA17091@localhost.localdomain>
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On Mon, Aug 19, 2019 at 09:07:07AM +0000, Adamski, Krzysztof (Nokia - PL/Wr=
oclaw) wrote:
> This device contains both master and slave controllers which can be
> enabled simultaneously. Both controllers share the same SDA/SCL lines
> and interrupt source but has separate control and status registers.
> Controllers also works in loopback mode - slave device can communicate
> with its own master controller internally. The controller can handle up
> to two addresses, both of which may be 10 bit. Most of the logic
> (sending (N)ACK, handling repeated start or switching between
> write/read) is handled automatically which makes working with this
> controller quite easy.
>=20
> For simplicity, this patch adds basic support, limiting to only one
> slave address. Support for the 2nd device may be added in the future.
>=20
> Note that synchronize_irq() is used to ensure any running slave interrupt
> is finished to make sure slave i2c_client structure can be safely used
> by i2c_slave_event.
>=20
> Signed-off-by: Krzysztof Adamski <krzysztof.adamski@nokia.com>

Applied to for-next, thanks!


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