Commit 16988c74 authored by Yang Yingliang's avatar Yang Yingliang Committed by Rob Herring
Browse files

of/address: introduce of_address_count() helper 



Introduce of_address_count() helper to count the IO resources
instead of open-coding it.

Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221008115617.3583890-2-yangyingliang@huawei.com


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 9abf2313

include/linux/of_address.h

+11 −0
Original line number Diff line number Diff line
@@ -154,4 +154,15 @@ static inline const __be32 *of_get_pci_address(struct device_node *dev, int bar_ 
	return __of_get_address(dev, -1, bar_no, size, flags);

}



static inline int of_address_count(struct device_node *np)

{

	struct resource res;

	int count = 0;



	while (of_address_to_resource(np, count, &res) == 0)

		count++;



	return count;

}



#endif /* __OF_ADDRESS_H */