Provide a platform-specific variant of device_set_of_node_from_dev(). In addition to bumping the reference count of the OF node being assigned, it also assigns the fwnode of the platform device.
Signed-off-by: Bartosz Golaszewski <[email protected]> --- drivers/base/platform.c | 16 ++++++++++++++++ include/linux/platform_device.h | 2 ++ 2 files changed, 18 insertions(+) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 6520b70cf3052d683a2ecb1a0dd7227575546ba0..f24a5f406746b53ca9eaab9472f6dd1345e04ad6 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -730,6 +730,22 @@ void platform_device_set_fwnode(struct platform_device *pdev, } EXPORT_SYMBOL_GPL(platform_device_set_fwnode); +/** + * platform_device_set_of_node_from_dev - reuse OF node of another device + * @pdev: platform device to set the node for + * @dev2: device whose OF node to reuse + * + * Reuses the OF node of another device in this platform device while + * internally keeping track of reference counting. + */ +void platform_device_set_of_node_from_dev(struct platform_device *pdev, + const struct device *dev2) +{ + device_set_of_node_from_dev(&pdev->dev, dev2); + pdev->dev.fwnode = of_fwnode_handle(pdev->dev.of_node); +} +EXPORT_SYMBOL_GPL(platform_device_set_of_node_from_dev); + /** * platform_device_add - add a platform device to device hierarchy * @pdev: platform device we're adding diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index c463d46b7b9ab6b891df1ca9f0c98608d2bb140f..94b8d2b46e913ebcdbdaa3710f008f478b59d7b4 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -268,6 +268,8 @@ void platform_device_set_of_node(struct platform_device *pdev, struct device_node *np); void platform_device_set_fwnode(struct platform_device *pdev, struct fwnode_handle *fwnode); +void platform_device_set_of_node_from_dev(struct platform_device *pdev, + const struct device *dev2); extern int platform_device_add(struct platform_device *pdev); extern void platform_device_del(struct platform_device *pdev); extern void platform_device_put(struct platform_device *pdev); -- 2.47.3
