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Diffstat (limited to 'Documentation/arch/arm64/arm-acpi.rst')
| -rw-r--r-- | Documentation/arch/arm64/arm-acpi.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/arch/arm64/arm-acpi.rst b/Documentation/arch/arm64/arm-acpi.rst index e59e4505d0d9..e74c8ab71429 100644 --- a/Documentation/arch/arm64/arm-acpi.rst +++ b/Documentation/arch/arm64/arm-acpi.rst @@ -306,9 +306,9 @@ that looks like this: Name(KEY0, "value0"). An ACPI device driver would then retrieve the value of the property by evaluating the KEY0 object. However, using Name() this way has multiple problems: (1) ACPI limits names ("KEY0") to four characters unlike DT; (2) there is no industry -wide registry that maintains a list of names, minimizing re-use; (3) +wide registry that maintains a list of names, minimizing reuse; (3) there is also no registry for the definition of property values ("value0"), -again making re-use difficult; and (4) how does one maintain backward +again making reuse difficult; and (4) how does one maintain backward compatibility as new hardware comes out? The _DSD method was created to solve precisely these sorts of problems; Linux drivers should ALWAYS use the _DSD method for device properties and nothing else. |