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-rw-r--r--include/linux/phy.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 3984f375126e..2432ca463ddc 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -717,6 +717,19 @@ static inline int phy_read(struct phy_device *phydev, u32 regnum)
return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
}
+#define phy_read_poll_timeout(phydev, regnum, val, cond, sleep_us, \
+ timeout_us, sleep_before_read) \
+({ \
+ int __ret = read_poll_timeout(phy_read, val, (cond) || val < 0, \
+ sleep_us, timeout_us, sleep_before_read, phydev, regnum); \
+ if (val < 0) \
+ __ret = val; \
+ if (__ret) \
+ phydev_err(phydev, "%s failed: %d\n", __func__, __ret); \
+ __ret; \
+})
+
+
/**
* __phy_read - convenience function for reading a given PHY register
* @phydev: the phy_device struct