- Subject: Re: [PATCH v3 2/2] i2c/of: Automatically populate i2c mux busses from device tree data.
- From: Stephen Warren <swarren@xxxxxxxxxxxxx>
- Date: Mon, 23 Apr 2012 11:11:58 -0600
- Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>, devicetree-discuss@xxxxxxxxxxxxxxxx, "Jean Delvare (PC drivers core)" <khali@xxxxxxxxxxxx>, "Ben Dooks (embedded platforms)" <ben-linux@xxxxxxxxx>, "Wolfram Sang (embedded platforms)" <w.sang@xxxxxxxxxxxxxx>, Peter Korsgaard <peter.korsgaard@xxxxxxxxx>, Guenter Roeck <guenter.roeck@xxxxxxxxxxxx>, linux-i2c@xxxxxxxxxxxxxxx, Rob Herring <rob.herring@xxxxxxxxxxx>, Lars-Peter Clausen <lars@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, David Daney <david.daney@xxxxxxxxxx>
- In-reply-to: <1334265263-13549-3-git-send-email-ddaney.cavm@gmail.com>
- References: <1334265263-13549-1-git-send-email-ddaney.cavm@gmail.com> <1334265263-13549-3-git-send-email-ddaney.cavm@gmail.com>
- User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.28) Gecko/20120313 Thunderbird/3.1.20
On 04/12/2012 03:14 PM, David Daney wrote:
> From: David Daney <david.daney@xxxxxxxxxx>
>
> 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@xxxxxxxxxx>
> Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
Acked-by: Stephen Warren <swarren@xxxxxxxxxxxxx>
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