Messages in this thread |  | | | Date | Thu, 28 Jan 2010 17:13:00 +1000 | | Subject | UIO / of_genirq driver | | From | John Williams <> |
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Hi,
I came across this thread/patchset from around June last year:
http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-June/073086.html
where Wolfgang proposed a generic OF-driven UIO driver. The discussion seemed to stall after Grant Likely indicated he didn't like the use of a linux-specific compatible binding in the device tree (compatible="generic-uio").
I guess I have a couple of questions:
* did this patchset go anywhere? I've been using it here the last few days and it works great.
and more generally:
* Is there a better way to handle the OF bindings for this sort of thing?
Grant's complaint seems to come up often - when you have generic controllers in a system (SPI/I2C also spring to mind), we need a way of signalling somehow to the kernel that each instance has a particular usage intended.
However, the device-tree guys complain whenever anyone tries to encode anything non-hardware related into the DTS itself.
I guess I'd like to just open up a discussion, see if there's been any progress towards a general solution.
Thanks,
John -- John Williams PetaLogix - Linux Solutions for a Reconfigurable World w: www.petalogix.com p: +61-7-30090663 f: +61-7-30090663
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