Messages in this thread Patch in this message | | | From | Dejin Zheng <> | Subject | [PATCH net-next 3/7] net: phy: introduce phy_read_mmd_poll_timeout macro | Date | Fri, 20 Mar 2020 00:39:06 +0800 |
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it is sometimes necessary to poll a phy register by phy_read_mmd() function until its value satisfies some condition. introduce phy_read_mmd_poll_timeout() macros that do this.
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com> --- include/linux/phy.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/linux/phy.h b/include/linux/phy.h index 36d9dea04016..a30e9008647f 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -24,6 +24,7 @@ #include <linux/mod_devicetable.h> #include <linux/u64_stats_sync.h> #include <linux/irqreturn.h> +#include <linux/iopoll.h> #include <linux/atomic.h> @@ -784,6 +785,9 @@ static inline int __phy_modify_changed(struct phy_device *phydev, u32 regnum, */ int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum); +#define phy_read_mmd_poll_timeout(val, cond, sleep_us, timeout_us, args...) \ + read_poll_timeout(phy_read_mmd, val, cond, sleep_us, timeout_us, args) + /** * __phy_read_mmd - Convenience function for reading a register * from an MMD on a given PHY. -- 2.25.0
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