Date: Thu, 17 Nov 2016 23:20:35 +0100
From: Wolfram Sang <wsa-dev@sang-engineering.com>
To: vadimp@mellanox.com
Cc: wsa@the-dreams.de, peda@axentia.se, linux-i2c@vger.kernel.org,
        linux-kernel@vger.kernel.org, jiri@resnulli.us,
        Michael Shych <michaelsh@mellanox.com>
Subject: Re: [v5+1,repost] i2c: mux: mellanox: add driver
Message-ID: <20161117222035.GA13783@katana>
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On Thu, Nov 10, 2016 at 09:26:23PM +0000, vadimp@mellanox.com wrote:
> From: Vadim Pasternak <vadimp@mellanox.com>
>=20
> This driver allows I2C routing controlled through CPLD select registers on
> a wide range of Mellanox systems (CPLD Lattice device).
> MUX selection is provided by digital and analog HW. Analog part is not
> under SW control.
> Digital part is under CPLD control (channel selection/de-selection).
>=20
> Connectivity schema.
> .---.             .-------------.
> | l |             |             |-- i2cx1 -- i2cx8
> | i |-- i2cn --+--| mlxcpld mux |
> | n |          |  |             |-- i2cy1 -- i2cy8
> | u |          |  '-------------'
> | x |          |         |
> '---'          '---------'
>=20
> i2c-mux-mlxpcld does not necessarily require i2c-mlxcpld. It can be used
> along with another bus driver, and still control i2c routing through CPLD
> mux selection, in case the system is equipped with CPLD capable of mux
> selection control.
>=20
> The Kconfig currently controlling compilation of this code is:
> drivers/i2c/muxes/Kconfig:config I2C_MUX_MLXCPLD
>=20
> Signed-off-by: Michael Shych <michaelsh@mellanox.com>
> Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
> Reviewed-by: Jiri Pirko <jiri@mellanox.com>
> Acked-by: Peter Rosin <peda@axentia.se>

Applied to for-next, thanks!


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