talos-obmc-linux/include/linux/property.h, branch dev-4.13-fsi

device property: Add fwnode_graph_get_port_parent

2017-06-22T00:55:34+00:00

Provide a helper to obtain the parent device fwnode without first parsing the remote-endpoint as per fwnode_graph_get_remote_port_parent. Signed-off-by: Kieran Bingham Signed-off-by: Sakari Ailus Reviewed-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki

device property: Add FW type agnostic fwnode_graph_get_remote_node

2017-06-22T00:55:34+00:00

Add fwnode_graph_get_remote_node() function which is equivalent to of_graph_get_remote_node() on OF. Signed-off-by: Sakari Ailus Reviewed-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki

device property: Introduce fwnode_device_is_available()

2017-06-22T00:55:34+00:00

Add fwnode_device_is_available() to tell whether the device corresponding to a certain fwnode_handle is available for use. Signed-off-by: Sakari Ailus Reviewed-by: Mika Westerberg Acked-by: Rob Herring Signed-off-by: Rafael J. Wysocki

device property: Add fwnode_get_next_parent()

2017-03-28T22:00:29+00:00

In order to differentiate the functionality between dropping a reference to the node (or not) for the benefit of OF, introduce fwnode_get_next_parent(). Signed-off-by: Sakari Ailus Reviewed-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki

device property: Add support for fwnode endpoints

2017-03-28T22:00:29+00:00

Similar to OF endpoints, endpoint type nodes can be also supported on ACPI. In order to make it possible for drivers to ignore the matter, add a type for fwnode_endpoint and a function to parse them. On ACPI, find the child node index instead of relying on the "endpoint" property. Signed-off-by: Sakari Ailus Reviewed-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki

device property: Make dev_fwnode() public

2017-03-28T22:00:28+00:00

The function to obtain a fwnode related to a struct device is useful for drivers that use the fwnode property API: it allows not being aware of the underlying firmware implementation. Signed-off-by: Sakari Ailus Reviewed-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki

device property: Add fwnode_handle_get()

2017-03-28T22:00:28+00:00

fwnode_handle_get() is used to obtain a reference to a fwnode_handle container. In this case this is OF specific struct device_node. This complements fwnode_handle_put() which is already implemented. Signed-off-by: Sakari Ailus Reviewed-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki

device property: Add support for remote endpoints

2017-03-28T22:00:28+00:00

This follows DT implementation of of_graph_* APIs but we call them fwnode_graph_* instead. For DT nodes the existing of_graph_* implementation will be used. For ACPI we use the new ACPI graph implementation instead. Signed-off-by: Mika Westerberg Signed-off-by: Sakari Ailus Signed-off-by: Rafael J. Wysocki

device property: Add fwnode_get_named_child_node()

2017-03-28T22:00:28+00:00

Since now we have means to enumerate all children of any fwnode even in ACPI we can implement fwnode_get_named_child_node(). This is similar than device_get_named_child_node() with the exception that it can be called to any fwnode handle. Make device_get_named_child_node() call directly this new function. This is useful in cases where we need to be able to find child nodes which are not direct descendants of the parent device. Signed-off-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki

ACPI / property: Add fwnode_get_next_child_node()

2017-03-28T22:00:27+00:00

The ACPI _DSD hierarchical data extension makes it possible to have hierarchies deeper than one level in similar way than DT allows. These "subsubnodes" have not been accessible because device property implementation only provides device_get_next_child_node() that is limited to direct descendants of a device. We need this ability in order support things like remote endpoints currently supported in DT with of_graph_* APIs. Modify acpi_get_next_subnode() to accept fwnode handle instead and update callers accordingly. Also add a new function fwnode_get_next_child_node() that works directly with fwnodes and modify device_get_next_child_node() to call it directly. While there add a macro fwnode_for_each_child_node() analogous to the current device_for_each_child_node() but it works with fwnodes instead of devices. Link: http://www.uefi.org/sites/default/files/resources/_DSD-hierarchical-data-extension-UUID-v1.pdf Signed-off-by: Mika Westerberg Signed-off-by: Rafael J. Wysocki