On Wednesday 19 September 2012, Pawel Moll wrote:

On Tue, 2012-09-18 at 16:24 +0100, Arnd Bergmann wrote:

quoted

On Tuesday 18 September 2012, Pawel Moll wrote:

Yes, but I2C devices are created by of_i2c_register_devices() which
knows how to interpret the reg property. And here, as these are normal
platform devices now (as you suggested), the of_platform_bus_create()
will treat it as a normal address, translate it via ranges and create
IORESOURCE_MEM out of it... And that's what I wanted to avoid. Maybe
unnecessarily?

You are right, this is a bit nasty, it should not attempt to do this.
Basically the reg parsing logic has a hack to work around apply PowerMac
firmware that misses some "ranges" properties.

I think we should change the DT parsing code to not create those
resources if there is a bus that can't be translated.

	Arnd