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Date: Fri, 1 May 2009 18:04:03 +0200
From: Wolfram Sang <w.sang@pengutronix.de>
To: Jon Smirl <jonsmirl@gmail.com>
Subject: Re: Using archaic I2C with OF
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> Post this on the i2c list. Jean has made an effort to convert all
> drivers. He must have missed that one.

What Jean did was converting all drivers who used the legacy i2c-binding to=
 use
the new binding which is a lot better suited to the driver model. The above
mentioned driver already uses the new binding.

The problem coming up here is another issue and also long standing and not =
yet
solved. There are drivers which require platform_data with function pointer=
s.
You cannot encode function pointers to the device tree.

One solution is to create a custom driver for your board with the needed
specific function and create a platform device from there. Sometimes it
works to add a bit more info to the device tree (e.g. some gpios) and
parse it via an of_wrapper around the platform driver.

Regards,

   Wolfram

--=20
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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