Bug#281952: additional /proc/device-tree patch for this issue. ...

[Sven Luther]

On Sat, Jan 22, 2005 at 08:37:59PM +0100, Juergen Kreileder wrote:
> 
> > As you see, the crux of this patch is to check for the existence of
> > a via-pmu device in the firmware provided device-tree.
> 
> This isn't really good enough.  My machine (G5) has a PMU, it's in the

Ah, yes. Is it a via-pmu ? I don't think so, and so accordying to current
kernel sources, there is no /dev/pmu created, which is the exclusive domain of
via-pmu.c.

Can you provide me with your /proc/device-tree/aliases content please ? 

> device-tree and /proc/pmu exists too.  But it does not have
> /dev/pmu[1].  You only get /dev/pmu the kernel was built with
> CONFIG_PMAC_PBOOK (last time I checked ppc64 didn't compile with that
> option).

Exactly.

> Even if you patch the kernel to get /dev/pmu on all machines with a
> via-pmu (I've written a patch for this some time ago), it wouldn't
> help because not all machines have an fblevel control.

So, at least we weed out all machines which have no chance of having a
/dev/pmu. Do you know how we can check for machines which have a fblevel
control ? 

> Anyhow, I won't complain as long as errors are just logged to
> .xsession-errors instead of being reported via annoying dialogs.

Hehe.

Friendly,

Sven Luther