diff options
| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-10-08 19:56:16 +0800 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2022-10-16 17:58:54 -0500 |
| commit | 16988c742968d5ceb2e832a57bd277f51f0a59d7 (patch) | |
| tree | e208c02db6f827befef8ceb69dec98f169480959 /include/linux/of_address.h | |
| parent | 9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff) | |
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: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221008115617.3583890-2-yangyingliang@huawei.com
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'include/linux/of_address.h')
| -rw-r--r-- | include/linux/of_address.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/of_address.h b/include/linux/of_address.h index 45598dbec269..265f26eeaf6b 100644 --- a/include/linux/of_address.h +++ b/include/linux/of_address.h @@ -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 */ |