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
Date: Thu, 17 Nov 2016 23:20:35 +0100 [thread overview]
Message-ID: <20161117222035.GA13783@katana> (raw)
In-Reply-To: <1478813183-134553-1-git-send-email-vadimp@mellanox.com>
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On Thu, Nov 10, 2016 at 09:26:23PM +0000, vadimp@mellanox.com wrote:
> From: Vadim Pasternak <vadimp@mellanox.com>
>
> 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).
>
> Connectivity schema.
> .---. .-------------.
> | l | | |-- i2cx1 -- i2cx8
> | i |-- i2cn --+--| mlxcpld mux |
> | n | | | |-- i2cy1 -- i2cy8
> | u | | '-------------'
> | x | | |
> '---' '---------'
>
> 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.
>
> The Kconfig currently controlling compilation of this code is:
> drivers/i2c/muxes/Kconfig:config I2C_MUX_MLXCPLD
>
> 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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prev parent reply other threads:[~2016-11-17 22:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-10 21:26 [patch v5+1 repost] i2c: mux: mellanox: add driver vadimp
2016-11-11 8:35 ` Peter Rosin
2016-11-11 8:35 ` Peter Rosin
2016-11-11 11:45 ` Vadim Pasternak
2016-11-17 22:20 ` Wolfram Sang [this message]
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