[RFC/PATCH] powerpc: Move CPM command handling into the cpm drivers

Vitaly Bordug vitb at kernel.crashing.org
Tue Nov 27 19:08:08 EST 2007

On Mon, 26 Nov 2007 15:41:19 -0600
Scott Wood wrote:

> Vitaly Bordug wrote:
> > perhaps I was not clear enough. That was a rough idea how to handle
> > the whole thing, not just cpm_cr_cmd. This cpm command is a corner
> > case, but there can be other actions that may confuse CPM being
> > triggered simultaneously or overlapping.
> What kind of actions did you have in mind?  Microcode patching?
microcode is another case to handle gracefully. There are also
"soft" cases like cpmux mess-up, incompatible SoC devices (which we are handling by
logical exclude now but which do have natural reasons of "not leaving together" like
shared dedicated GPIO or smth else) etc. 

Sincerely, Vitaly

More information about the Linuxppc-dev mailing list