[PATCH] ARM: vexpress: initial device tree support

Timur Tabi timur at freescale.com
Thu Jan 12 10:32:44 EST 2012


Mitch Bradley wrote:
> You make device nodes for each of the i2c adapters 

We have that already.

> (possibly with a GPIO 
> I2C mux node underneath the EDID one), 

Ok.

> then you point to the correct 
> adapter (or mux) node with a phandle-valued property in the video node.

The only connection between a device tree node and an I2C object is the
of_find_i2c_device_by_node() function.  That requires the I2C device to be
instantiated.

> Of course, you need the deferral patch cited in another message.

Last I heard, it's not ready.  I suspect it will be part of kernel 3.4, at
the earliest.

-- 
Timur Tabi
Linux kernel developer at Freescale



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