kernel/linux.git/drivers/base/swnode.c, branch v5.4.26

software node: Get reference to parent swnode in get_parent op

2020-01-26T09:01:04+00:00

[ Upstream commit 51c100a651a471fcb8ead1ecc1224471eb0d61b9 ] The software_node_get_parent() returned a pointer to the parent swnode, but did not take a reference to it, leading the caller to put a reference that was not taken. Take that reference now. Fixes: 59abd83672f7 ("drivers: base: Introducing software nodes to the firmware node framework") Signed-off-by: Sakari Ailus Reviewed-by: Heikki Krogerus Reviewed-by: Andy Shevchenko Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

software node: Initialize the return value in software_node_find_by_name()

2019-09-11T17:10:12+00:00

The software node is searched from a list that may be empty when the function is called. This makes sure that the function returns NULL if the list is empty. Fixes: 1666faedb567 ("software node: Add software_node_find_by_name()") Reported-by: kbuild test robot Reported-by: Dan Carpenter Signed-off-by: Heikki Krogerus Reviewed-by: Greg Kroah-Hartman Signed-off-by: Rafael J. Wysocki

software node: Initialize the return value in software_node_to_swnode()

2019-09-04T21:03:19+00:00

The software node is searched from a list that may be empty when the function is called. This makes sure that the function returns NULL even if the list is empty. Fixes: 80488a6b1d3c ("software node: Add support for static node descriptors") Reported-by: kbuild test robot Reported-by: Dan Carpenter Signed-off-by: Heikki Krogerus Reviewed-by: Greg Kroah-Hartman Signed-off-by: Rafael J. Wysocki

software node: Add software_node_find_by_name()

2019-08-26T09:35:13+00:00

Function that searches software nodes by node name. Signed-off-by: Heikki Krogerus Reviewed-by: Hans de Goede Tested-by: Hans de Goede Reviewed-by: Andy Shevchenko Signed-off-by: Rafael J. Wysocki

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