[PATCH v6 1/2] net: phy: add API to read 802.3-c45 IDs
From: Xu Liang <lxu@maxlinear.com>
Date: 2021-07-19 05:32:27
Subsystem:
ethernet phy library, networking drivers, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add API to read 802.3-c45 IDs so that C22/C45 mixed device can use C45 APIs without failing ID checks. Signed-off-by: Xu Liang <lxu@maxlinear.com> --- v5 changes: Fix incorrect prototype name in comment. drivers/net/phy/phy_device.c | 14 ++++++++++++++ include/linux/phy.h | 1 + 2 files changed, 15 insertions(+)
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 5d5f9a9ee768..107aa6d7bc6b 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c@@ -968,6 +968,20 @@ void phy_device_remove(struct phy_device *phydev) } EXPORT_SYMBOL(phy_device_remove); +/** + * phy_get_c45_ids - Read 802.3-c45 IDs for phy device. + * @phydev: phy_device structure to read 802.3-c45 IDs + * + * Returns zero on success, %-EIO on bus access error, or %-ENODEV if + * the "devices in package" is invalid. + */ +int phy_get_c45_ids(struct phy_device *phydev) +{ + return get_phy_c45_ids(phydev->mdio.bus, phydev->mdio.addr, + &phydev->c45_ids); +} +EXPORT_SYMBOL(phy_get_c45_ids); + /** * phy_find_first - finds the first PHY device on the bus * @bus: the target MII bus
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 3b80dc3ed68b..736e1d1a47c4 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h@@ -1431,6 +1431,7 @@ static inline int phy_device_register(struct phy_device *phy) static inline void phy_device_free(struct phy_device *phydev) { } #endif /* CONFIG_PHYLIB */ void phy_device_remove(struct phy_device *phydev); +int phy_get_c45_ids(struct phy_device *phydev); int phy_init_hw(struct phy_device *phydev); int phy_suspend(struct phy_device *phydev); int phy_resume(struct phy_device *phydev);
--
2.17.1