kernel/linux.git/drivers/base/swnode.c, branch v5.3.9

software node: Add software_node_get_reference_args()

2019-06-03T08:55:38+00:00

This makes it possible to support drivers that use fwnode_property_get_reference_args() function. Signed-off-by: Heikki Krogerus Tested-by: Hans de Goede Signed-off-by: Rafael J. Wysocki

software node: Use kobject name when finding child nodes by name

2019-06-03T08:55:38+00:00

Using the kobject name of the node instead of a device property "name" in software_node_get_named_child_node(). Signed-off-by: Heikki Krogerus Tested-by: Hans de Goede Signed-off-by: Rafael J. Wysocki

software node: Add support for static node descriptors

2019-06-03T08:55:38+00:00

Until now the software nodes could only be created dynamically with fwnode_create_software_node() function. This introduces struct software_node data structure, which makes it possible to describe the software nodes also statically. The statically described software nodes can be registered with a new function fwnode_register_software_node(). This also adds a helper fwnode_register_software_nodes() which makes it possible to register an array of struct software_nodes, i.e. multiple nodes at the same time. There is no difference between statically described and dynamically allocated software nodes. Even the registration does not differ, except that during node creation the device properties are only copied if the node is created dynamically. With statically described nodes, the property entries in the descriptor (struct software_node) are assigned directly to the new software node that is being created without any copies. Signed-off-by: Heikki Krogerus Tested-by: Hans de Goede Signed-off-by: Rafael J. Wysocki

software node: Simplify software_node_release() function

2019-06-03T08:55:38+00:00

It's possible to release the node ID immediately when fwnode_remove_software_node() is called, no need to wait for software_node_release() with that. Signed-off-by: Heikki Krogerus Tested-by: Hans de Goede Signed-off-by: Rafael J. Wysocki

software node: Allow node creation without properties

2019-06-03T08:55:38+00:00

Software nodes are not forced to have device properties. Adding check to property_entries_dup() to make it possible to create software nodes that don't have any properties. Signed-off-by: Heikki Krogerus Tested-by: Hans de Goede Signed-off-by: Rafael J. Wysocki

drivers: base: swnode: Make two functions static

2019-03-19T15:37:56+00:00

Fix sparse warning: drivers/base/swnode.c:475:22: warning: symbol 'software_node_get_parent' was not declared. Should it be static? drivers/base/swnode.c:484:22: warning: symbol 'software_node_get_next_child' was not declared. Should it be static? Signed-off-by: YueHaibing Signed-off-by: Rafael J. Wysocki

software node: Implement get_named_child_node fwnode callback

2019-02-14T10:33:15+00:00

This makes it possible to support drivers that use fwnode_get_named_child_node() and device_get_named_child_node() functions. The node name is for now taken from a device property named "name". That mimics the old style of naming of the nodes in devicetree (though with modern flattened DT, the name is matched against the actual node-name, it used to be done with a property "name"). In Open Firmware DT the "name" property is also still being used. Signed-off-by: Heikki Krogerus Signed-off-by: Rafael J. Wysocki

drivers: base: swnode: check if swnode is NULL before dereferencing it

2018-12-26T09:50:36+00:00

The to_software_mode() macro can potentially return NULL, so also add a NULL check on swnode before dereferencing it to avoid any NULL pointer dereferences. Detected by CoverityScan, CID#1476052 ("Explicit null dereferenced") Fixes: 59abd83672f7 (drivers: base: Introducing software nodes to the firmware node framework) Signed-off-by: Colin Ian King Signed-off-by: Rafael J. Wysocki

drivers: base: swnode: check if pointer p is NULL before dereferencing it

2018-12-26T09:48:01+00:00

The pointer p can be potentially NULL as macro to_software_node can return NULL. Add null check on p before dereferencing it to avoid any NULL pointer dereferences. Detected by CoverityScan, CID#1476039 ("Explicit null dereferenced") Fixes: 59abd83672f7 (drivers: base: Introducing software nodes to the firmware node framework) Signed-off-by: Colin Ian King Signed-off-by: Rafael J. Wysocki

drivers: base: swnode: remove need for a temporary string for the node name

2018-12-11T11:18:15+00:00

Currently the node name is being formatting into a temporary string node_name, however, kobject_init_and_add allows one to format up a node name, so use that instead. This removes the need for the node_name string and also cleans up the following warning: Fixes clang warning: warning: format string is not a string literal (potentially insecure) [-Wformat-security] Signed-off-by: Colin Ian King Signed-off-by: Rafael J. Wysocki