[PATCH net-next v2 02/10] net: phy: Add support for polling cable test
From: Andrew Lunn <andrew@lunn.ch>
Date: 2020-05-05 00:18:43
Subsystem:
ethernet phy library, networking drivers, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Some PHYs are not capable of generating interrupts when a cable test finished. They do however support interrupts for normal operations, like link up/down. As such, the PHY state machine would normally not poll the PHY. Add support for indicating the PHY state machine must poll the PHY when performing a cable test. Signed-off-by: Andrew Lunn <andrew@lunn.ch> --- drivers/net/phy/phy.c | 2 ++ include/linux/phy.h | 5 +++++ 2 files changed, 7 insertions(+)
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 4f95e605080e..cea89785bcd4 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c@@ -521,6 +521,8 @@ int phy_start_cable_test(struct phy_device *phydev, phydev->state = PHY_CABLETEST; + if (phy_polling_mode(phydev)) + phy_trigger_machine(phydev); out: mutex_unlock(&phydev->lock);
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 916a5eb969a1..593da2c6041d 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h@@ -78,6 +78,7 @@ extern const int phy_10gbit_features_array[1]; #define PHY_IS_INTERNAL 0x00000001 #define PHY_RST_AFTER_CLK_EN 0x00000002 +#define PHY_POLL_CABLE_TEST 0x00000004 #define MDIO_DEVICE_IS_PHY 0x80000000 /* Interface Mode definitions */
@@ -1025,6 +1026,10 @@ static inline bool phy_interrupt_is_valid(struct phy_device *phydev) */ static inline bool phy_polling_mode(struct phy_device *phydev) { + if (phydev->state == PHY_CABLETEST) + if (phydev->drv->flags & PHY_POLL_CABLE_TEST) + return true; + return phydev->irq == PHY_POLL; }
--
2.26.2