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software node: Add software_node_get_reference_args()

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This makes it possible to support drivers that use
fwnode_property_get_reference_args() function.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Heikki Krogerus 2019-05-31 17:15:36 +03:00 • committed by Rafael J. Wysocki
parent c959d0c231
commit b06184acf7
2 changed files with 75 additions and 0 deletions
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28
include/linux/property.h
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@ -332,16 +332,44 @@ int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
/* -------------------------------------------------------------------------- */
/* Software fwnode support - when HW description is incomplete or missing */
struct software_node;
/**
* struct software_node_ref_args - Reference with additional arguments
* @node: Reference to a software node
* @nargs: Number of elements in @args array
* @args: Integer arguments
*/
struct software_node_ref_args {
const struct software_node *node;
unsigned int nargs;
u64 args[NR_FWNODE_REFERENCE_ARGS];
};
/**
* struct software_node_reference - Named software node reference property
* @name: Name of the property
* @nrefs: Number of elements in @refs array
* @refs: Array of references with optional arguments
*/
struct software_node_reference {
const char *name;
unsigned int nrefs;
const struct software_node_ref_args *refs;
};
/**
* struct software_node - Software node description
* @name: Name of the software node
* @parent: Parent of the software node
* @properties: Array of device properties
* @references: Array of software node reference properties
*/
struct software_node {
const char *name;
const struct software_node *parent;
const struct property_entry *properties;
const struct software_node_reference *references;
};
bool is_software_node(const struct fwnode_handle *fwnode);