From a423bd845c6043c205eedc413f40f81c7550e85c Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: Fri, 10 May 2019 12:46:03 +0300
Subject: [PATCH] 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 <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
.../firmware-guide/acpi/dsd/data-node-references.rst | 6 +++---
Documentation/firmware-guide/acpi/dsd/graph.rst | 12 ++++++------
2 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/Documentation/firmware-guide/acpi/dsd/data-node-references.rst b/Documentation/firmware-guide/acpi/dsd/data-node-references.rst
index 1351984e767c8..febccbc5689d0 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 8a9019a38b66d..1a6ce7afba5ea 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" },
}
})
--
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