From a423bd845c6043c205eedc413f40f81c7550e85c Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Fri, 10 May 2019 12:46:03 +0300 Subject: Documentation: ACPI: Direct references are allowed to devices only In ACPI it is possible to make references to device objects only, not to other objects inside a device. In practice this means that hierarchical data extension targets must be in parentheses to make them strings, or an ACPICA warning will be produced. Reported-by: Andy Shevchenko Signed-off-by: Sakari Ailus Reviewed-by: Andy Shevchenko [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki --- .../firmware-guide/acpi/dsd/data-node-references.rst | 6 +++--- Documentation/firmware-guide/acpi/dsd/graph.rst | 12 ++++++------ 2 files changed, 9 insertions(+), 9 deletions(-) (limited to 'Documentation/firmware-guide') diff --git a/Documentation/firmware-guide/acpi/dsd/data-node-references.rst b/Documentation/firmware-guide/acpi/dsd/data-node-references.rst index 1351984e767c..febccbc5689d 100644 --- a/Documentation/firmware-guide/acpi/dsd/data-node-references.rst +++ b/Documentation/firmware-guide/acpi/dsd/data-node-references.rst @@ -45,8 +45,8 @@ the ANOD object which is also the final target node of the reference. Name (_DSD, Package () { ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"), Package () { - Package () { "node@0", NOD0 }, - Package () { "node@1", NOD1 }, + Package () { "node@0", "NOD0" }, + Package () { "node@1", "NOD1" }, } }) Name (NOD0, Package() { @@ -58,7 +58,7 @@ the ANOD object which is also the final target node of the reference. Name (NOD1, Package() { ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"), Package () { - Package () { "anothernode", ANOD }, + Package () { "anothernode", "ANOD" }, } }) Name (ANOD, Package() { diff --git a/Documentation/firmware-guide/acpi/dsd/graph.rst b/Documentation/firmware-guide/acpi/dsd/graph.rst index 8a9019a38b66..1a6ce7afba5e 100644 --- a/Documentation/firmware-guide/acpi/dsd/graph.rst +++ b/Documentation/firmware-guide/acpi/dsd/graph.rst @@ -45,7 +45,7 @@ with "port" and must be followed by the "@" character and the number of the port as its key. The target object it refers to should be called "PRTX", where "X" is the number of the port. An example of such a package would be:: - Package() { "port@4", PRT4 } + Package() { "port@4", "PRT4" } Further on, endpoints are located under the port nodes. The hierarchical data extension key of the endpoint nodes must begin with @@ -54,7 +54,7 @@ endpoint. The object it refers to should be called "EPXY", where "X" is the number of the port and "Y" is the number of the endpoint. An example of such a package would be:: - Package() { "endpoint@0", EP40 } + Package() { "endpoint@0", "EP40" } Each port node contains a property extension key "port", the value of which is the number of the port. Each endpoint is similarly numbered with a property @@ -91,7 +91,7 @@ A simple example of this is show below:: }, ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"), Package () { - Package () { "port@0", PRT0 }, + Package () { "port@0", "PRT0" }, } }) Name (PRT0, Package() { @@ -101,7 +101,7 @@ A simple example of this is show below:: }, ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"), Package () { - Package () { "endpoint@0", EP00 }, + Package () { "endpoint@0", "EP00" }, } }) Name (EP00, Package() { @@ -121,7 +121,7 @@ A simple example of this is show below:: Name (_DSD, Package () { ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"), Package () { - Package () { "port@4", PRT4 }, + Package () { "port@4", "PRT4" }, } }) @@ -132,7 +132,7 @@ A simple example of this is show below:: }, ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"), Package () { - Package () { "endpoint@0", EP40 }, + Package () { "endpoint@0", "EP40" }, } }) -- cgit v1.2.3