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driver core: Export get_dev_from_fwnode() 

It has turned out get_dev_from_fwnode() is useful at a few other places
outside of the driver core, as in gpiolib.c for example. Therefore let's
make it available as a common helper function.

Suggested-by: Saravana Kannan <saravanak@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X
Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250701114733.636510-18-ulf.hansson@linaro.org
This commit is contained in:
Ulf Hansson 2025-07-01 13:47:19 +02:00
parent 29ea33866d
commit 9a4681a485
2 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/base/core.c
View File

@ -1881,8 +1881,6 @@ static void fw_devlink_unblock_consumers(struct device *dev)
device_links_write_unlock(); device_links_write_unlock();
} }
#define get_dev_from_fwnode(fwnode) get_device((fwnode)->dev)
static bool fwnode_init_without_drv(struct fwnode_handle *fwnode) static bool fwnode_init_without_drv(struct fwnode_handle *fwnode)
{ {
struct device *dev; struct device *dev;
@ -5281,6 +5279,12 @@ void device_set_node(struct device *dev, struct fwnode_handle *fwnode)
} }
EXPORT_SYMBOL_GPL(device_set_node); EXPORT_SYMBOL_GPL(device_set_node);
struct device *get_dev_from_fwnode(struct fwnode_handle *fwnode)
{
return get_device((fwnode)->dev);
}
EXPORT_SYMBOL_GPL(get_dev_from_fwnode);
int device_match_name(struct device *dev, const void *name) int device_match_name(struct device *dev, const void *name)
{ {
return sysfs_streq(dev_name(dev), name); return sysfs_streq(dev_name(dev), name);

1
include/linux/device.h
View File

@ -1048,6 +1048,7 @@ void device_set_node(struct device *dev, struct fwnode_handle *fwnode);
int device_add_of_node(struct device *dev, struct device_node *of_node); int device_add_of_node(struct device *dev, struct device_node *of_node);
void device_remove_of_node(struct device *dev); void device_remove_of_node(struct device *dev);
void device_set_of_node_from_dev(struct device *dev, const struct device *dev2); void device_set_of_node_from_dev(struct device *dev, const struct device *dev2);
struct device *get_dev_from_fwnode(struct fwnode_handle *fwnode);
static inline struct device_node *dev_of_node(struct device *dev) static inline struct device_node *dev_of_node(struct device *dev)
{ {