ACPI: use LNXCPU, not ACPI_CPU, for Linux-specific processor _HID

ACPI_PROCESSOR_OBJECT_HID is a synthetic _HID that Linux generates
for "Processor" definitions.  Unlike "Device" definitions, "Processor"
definitions do not have a _HID in the namespace, so we generate a
fake _HID.  By convention, all these fake _HIDs begin with "LNX".

This does change the user-visible _HID for "Processor" objects --
previously, we used "ACPI_CPU" and this changes that to "LNXCPU",
which starts with "LNX" as do all the other made-up _HIDs.  This
change is visible in processor filenames and "hid" files under
/sys/devices/LNXSYSTM:00/.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index 0352c8f..c9922b3 100644 (file)
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -57,7 +57,7 @@
  */
 
 #define ACPI_POWER_HID                 "LNXPOWER"
-#define ACPI_PROCESSOR_OBJECT_HID      "ACPI_CPU"
+#define ACPI_PROCESSOR_OBJECT_HID      "LNXCPU"
 #define ACPI_PROCESSOR_HID             "ACPI0007"
 #define ACPI_SYSTEM_HID                        "LNXSYSTM"
 #define ACPI_THERMAL_HID               "LNXTHERM"