skylake: ACPI: Fix compiler warnings with iasl-20150717

Updating to a new IASL introduces a lot of warnings that are
not serious issues but can be fixed with some reworks.

- Method local variables that are set but never used now warn,
when needing to read back a register the ordering is now changed
to set the value in Local0 first so the compiler does not complain.
- Methods that create an object must be serialized
- A ResourceTemplate declared inside a _CRS with a named variable
does not seem to be able to compile without a warning.  To fix
this move the ResourceTemplate outside the _CRS method.
- The DPTF CPU code was still using the old legacy \_PR.CPUx
instead of the new \_PR.CPxx definitions.

BUG=chrome-os-partner:44622
BRANCH=none
TEST=build glados with iasl-20150717 and see no warnings

Original-Change-Id: I4a66c7eb6495aac4ae1aa42100c846725c1a04d2
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/302168
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: Ia3af802ca2faab4f1c59e73f2ce31a65c7e862e0
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11812
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@google.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/soc/intel/skylake/acpi/globalnvs.asl b/src/soc/intel/skylake/acpi/globalnvs.asl
index 31711d1d3b..581e96516f 100644
--- a/src/soc/intel/skylake/acpi/globalnvs.asl
+++ b/src/soc/intel/skylake/acpi/globalnvs.asl
@@ -30,7 +30,8 @@ Name (\PICM, 0)		// IOAPIC/8259
  * we have to fix it up in coreboot's ACPI creation phase.
  */
 
-External(NVSA)
+External (NVSA)
+
 OperationRegion (GNVS, SystemMemory, NVSA, 0x2000)
 Field (GNVS, ByteAcc, NoLock, Preserve)
 {