Instead of spilling the match function to check the device fwnode everywhere, let us add a generic helper which can be reused by all. Also adds a wrapper for bus_find_device to find a device by fwnode.
Cc: Greg Kroah-Hartman <[email protected]> Cc: "Rafael J. Wysocki" <[email protected]> Cc: Ulf Hansson <[email protected]> Signed-off-by: Suzuki K Poulose <[email protected]> --- drivers/base/core.c | 6 ++++++ include/linux/device.h | 15 +++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/drivers/base/core.c b/drivers/base/core.c index d20699c..141c4f8 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -3334,3 +3334,9 @@ int device_match_of_node(struct device *dev, void *np) return dev->of_node == np; } EXPORT_SYMBOL_GPL(device_match_of_node); + +int device_match_fwnode(struct device *dev, void *fwnode) +{ + return dev_fwnode(dev) == fwnode; +} +EXPORT_SYMBOL_GPL(device_match_fwnode); diff --git a/include/linux/device.h b/include/linux/device.h index fe16be4..54be931 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -164,6 +164,7 @@ struct device *subsys_dev_iter_next(struct subsys_dev_iter *iter); void subsys_dev_iter_exit(struct subsys_dev_iter *iter); int device_match_of_node(struct device *dev, void *np); +int device_match_fwnode(struct device *dev, void *fwnode); int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, int (*fn)(struct device *dev, void *data)); @@ -188,6 +189,20 @@ static inline struct device *bus_find_device_by_of_node(struct bus_type *bus, return bus_find_device(bus, start, np, device_match_of_node); } +/** + * bus_find_device_by_fwnode : device iterator for locating a particular device + * matching the fwnode. + * @bus: bus type + * @start: Device to begin with + * @fwnode: fwnode of the device to match. + */ +static inline struct device *bus_find_device_by_fwnode(struct bus_type *bus, + struct device *start, + struct fwnode_handle *fwnode) +{ + return bus_find_device(bus, start, fwnode, device_match_fwnode); +} + struct device *subsys_find_device_by_id(struct bus_type *bus, unsigned int id, struct device *hint); int bus_for_each_drv(struct bus_type *bus, struct device_driver *start, -- 2.7.4
