Re: PowerBook 5,4 (the latest alu): cpufreq/sound/eth1394

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

> the question is, why "device_is_compatible" does not return successfully
> for "snapper". so far, i found out, that this function is located in
> arch/ppc/syslib/prom.c. what is responsible for filling the property
> "compatible"? looking back at my cpufreq problem, do you think
> that the parsing of the openfirmware device tree somewhat fails or
> misbehaves? i feel like one important item has changed unexpectedly in the OF
> and subsequent property calls result in failures. i attached the file
> tree of /proc/device-tree if that could be useful.

Or maybe you simply have a new sound chip which isn't "snapper" ? 

Ben.