linux-kernel - Re: [PATCH v3 2/2] i2c/of: Automatically populate i2c mux busses from device tree data.

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Message-ID: <4F958D5E.9090003@wwwdotorg.org>
Date:	Mon, 23 Apr 2012 11:11:58 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	David Daney <ddaney.cavm@...il.com>
CC:	Grant Likely <grant.likely@...retlab.ca>,
	devicetree-discuss@...ts.ozlabs.org,
	"Jean Delvare (PC drivers core)" <khali@...ux-fr.org>,
	"Ben Dooks (embedded platforms)" <ben-linux@...ff.org>,
	"Wolfram Sang (embedded platforms)" <w.sang@...gutronix.de>,
	Peter Korsgaard <peter.korsgaard@...co.com>,
	Guenter Roeck <guenter.roeck@...csson.com>,
	linux-i2c@...r.kernel.org, Rob Herring <rob.herring@...xeda.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	linux-kernel@...r.kernel.org, David Daney <david.daney@...ium.com>
Subject: Re: [PATCH v3 2/2] i2c/of: Automatically populate i2c mux busses
 from device tree data.

On 04/12/2012 03:14 PM, David Daney wrote:
> From: David Daney <david.daney@...ium.com>
> 
> For 'normal' i2c bus drivers, we can call of_i2c_register_devices()
> and have the device tree framework automatically populate the bus with
> the devices specified in the device tree.
> 
> This patch adds a common code to the i2c mux framework to have the mux
> sub-busses be populated by the of_i2c_register_devices() too.  If the
> mux device has an of_node, we populate the sub-bus' of_node so that
> the subsequent call to of_i2c_register_devices() will find the
> corresponding devices.
> 
> It seemed better to put this logic in i2c_add_mux_adapter() rather
> than the individual mux drivers, as they will all probably want to do
> the same thing.
> 
> Signed-off-by: David Daney <david.daney@...ium.com>
> Cc: Lars-Peter Clausen <lars@...afoo.de>

Acked-by: Stephen Warren <swarren@...dotorg.org>
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