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From: Gabor Juhos <juhosg@openwrt.org>
Subject: generic: add detach callback to struct phy_driver

lede-commit: fe61fc2d7d0b3fb348b502f68f98243b3ddf5867

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
 drivers/net/phy/phy_device.c | 3 +++
 include/linux/phy.h          | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 14d57d0d1c04..c37d3a27e372 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1001,6 +1001,9 @@ void phy_detach(struct phy_device *phydev)
 	struct mii_bus *bus;
 	int i;
 
+	if (phydev->drv && phydev->drv->detach)
+		phydev->drv->detach(phydev);
+
 	phydev->attached_dev->phydev = NULL;
 	phydev->attached_dev = NULL;
 	phy_suspend(phydev);
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 93c1e74afc44..d97a418f2cf7 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -508,6 +508,12 @@ struct phy_driver {
 	 */
 	int (*did_interrupt)(struct phy_device *phydev);
 
+	/*
+	 * Called before an ethernet device is detached
+	 * from the PHY.
+	 */
+	void (*detach)(struct phy_device *phydev);
+
 	/* Clears up any memory if needed */
 	void (*remove)(struct phy_device *phydev);
 
-- 
2.11.0