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Document that if a port has a single endpoint only, its value shall be
zero. Similarly, if a device object only has a single port, its value
shlla be zero.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Address a few issues in the ACPI _DSD properties graph documentation:
- the extension for port nodes is a data extension (and not property
extension),
- clean up language in port hierarchical data extension definition,
- add examples of port and endpoint packages,
- port property value is the number of the "port" and not the number
of the "port node",
- remove word "individual" from endpoint data node description, it
was redundant,
- remove the extra "The" in the endpoint property description,
- refer to hierarchical data extension keys and targets instead of
first and second package list entries.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Hierarchical data extension 1.1 allows using references as the second
entries of the hierearchical data extension packages. Update the
references and the examples.
The quotes are left in documentation for clarity.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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As part of the hierarchical data extension key naming, introduce numbering
scheme for the nodes that may be referred to using hierarchical data
extension references. This allows iterating over particular kind of nodes
recognised by the node name whilst allowing numbering the nodes, bringing
ACPI to feature parity with DT in this respect.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Instead of using the port and endpoint properties, rely on the names of
the port and endpoint nodes as well as the reg property, as on DT.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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By using device and further data node references, allow direct references
to endpoints. These are of form
Package() { \DEV, "portX", "endpointY" }
where X is the number of the port and Y is the number of the endpoint.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The fwnode graph API is preferred over the ACPI graph API. Therefore
make the ACPI graph API private, and use it as a back-end for the
fwnode graph API only.
Unused functionality is removed while the functionality actually used
remains the same.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Sakari Ailus