Merge branch 'acpica'
ACPICA update to upstream revision 20180531 (including an important
AML parser fix and updates related to IORT) and a change to start
responding to the "Windows 2017.2" _OSI string.
* acpica:
ACPICA: Recognize the _OSI string "Windows 2017.2"
ACPICA: Update version to 20180531
ACPICA: Interpreter: Begin deprecation of Unload operator
ACPICA: AML parser: attempt to continue loading table after error
ACPICA: Debugger: Reduce verbosity for module-level code errors.
ACPICA: AML Parser: Add debug option to dump parse trees
ACPICA: Debugger: Add count of namespace nodes after namespace dump
ACPICA: IORT: Add PMCG node supprt
ACPICA: IORT: Update for revision D
diff --git a/Documentation/acpi/method-customizing.txt b/Documentation/acpi/method-customizing.txt
index a3f598e..7235da9 100644
--- a/Documentation/acpi/method-customizing.txt
+++ b/Documentation/acpi/method-customizing.txt
@@ -16,7 +16,8 @@
rebuild/reboot is not needed and test result can be got in minutes.
Note: Only ACPI METHOD can be overridden, any other object types like
- "Device", "OperationRegion", are not recognized.
+ "Device", "OperationRegion", are not recognized. Methods
+ declared inside scope operators are also not supported.
Note: The same ACPI control method can be overridden for many times,
and it's always the latest one that used by Linux/kernel.
Note: To get the ACPI debug object output (Store (AAAA, Debug)),
@@ -32,8 +33,6 @@
DefinitionBlock ("", "SSDT", 1, "", "", 0x20080715)
{
- External (ACON)
-
Method (\_SB_.AC._PSR, 0, NotSerialized)
{
Store ("In AC _PSR", Debug)
@@ -42,9 +41,10 @@
}
Note that the full pathname of the method in ACPI namespace
should be used.
- And remember to use "External" to declare external objects.
e) assemble the file to generate the AML code of the method.
- e.g. "iasl psr.asl" (psr.aml is generated as a result)
+ e.g. "iasl -vw 6084 psr.asl" (psr.aml is generated as a result)
+ If parameter "-vw 6084" is not supported by your iASL compiler,
+ please try a newer version.
f) mount debugfs by "mount -t debugfs none /sys/kernel/debug"
g) override the old method via the debugfs by running
"cat /tmp/psr.aml > /sys/kernel/debug/acpi/custom_method"