diff options
| author | Herve Codina <herve.codina@bootlin.com> | 2025-02-24 17:13:51 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2025-03-01 00:12:58 +0300 |
| commit | 3b62449da444502d8b87bf090d8ec4a57d47eda5 (patch) | |
| tree | 28f825bfea53cc17ffe5df01100e66102c182029 /include/linux | |
| parent | 2014c95afecee3e76ca4a56956a936e23283f05b (diff) | |
| download | linux-3b62449da444502d8b87bf090d8ec4a57d47eda5.tar.xz | |
driver core: Introduce device_{add,remove}_of_node()
An of_node can be set to a device using device_set_node(), which does not
prevent any of_node and/or fwnode overwrites.
When adding an of_node on an already present device, the following
operations need to be done:
- Attach the of_node only if no of_node is already attached
- Attach the of_node as a fwnode if no fwnode were already attached
This is the purpose of device_add_of_node(). device_remove_of_node()
reverts the operations done by device_add_of_node().
Link: https://lore.kernel.org/r/20250224141356.36325-2-herve.codina@bootlin.com
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/device.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 80a5b3268986..1244e5892292 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -1191,6 +1191,8 @@ int device_online(struct device *dev); void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode); void set_secondary_fwnode(struct device *dev, struct fwnode_handle *fwnode); void device_set_node(struct device *dev, struct fwnode_handle *fwnode); +int device_add_of_node(struct device *dev, struct device_node *of_node); +void device_remove_of_node(struct device *dev); void device_set_of_node_from_dev(struct device *dev, const struct device *dev2); static inline struct device_node *dev_of_node(struct device *dev) |