CTDP: Only do TDP down/nominal change from TNP0

Otherwise there is a flurry of TDP changes with suspend/resume
as the kernel powers devices off on suspend and brings them
back online in resume.

This also adds a mutex around the TDP operations since it is
split across two methods and can't just rely on being Serialized.

Change-Id: I7757d3ddad34ac985a9c8ce2fc202e2b2dcb2527
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1348
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

0 files changed, 0 insertions, 0 deletions