From cd05f43dc83e7ba9fbbb6d2e639c04bbc84ac195 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 26 Aug 2019 12:19:35 +0100 Subject: net: phy: provide phy driver start/stop hooks Provide phy driver start/stop hooks so that the PHY driver knows when the network driver is starting or stopping. This will be used for the Marvell 10G driver so that we can sanely refuse to start if the PHYs firmware is not present, and also so that we can sanely support SFPs behind the PHY. Signed-off-by: Russell King --- drivers/net/phy/phy.c | 5 +++++ include/linux/phy.h | 3 +++ 2 files changed, 8 insertions(+) diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 683c9c9bda32..c185503af5f7 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -812,6 +812,8 @@ void phy_stop(struct phy_device *phydev) sfp_upstream_stop(phydev->sfp_bus); phydev->state = PHY_HALTED; + if (phydev->drv->stop) + phydev->drv->stop(phydev); mutex_unlock(&phydev->lock); @@ -845,6 +847,9 @@ void phy_start(struct phy_device *phydev) goto out; } + if (phydev->drv->start && phydev->drv->start(phydev)) + goto out; + if (phydev->sfp_bus) sfp_upstream_start(phydev->sfp_bus); diff --git a/include/linux/phy.h b/include/linux/phy.h index fb162b56343d..d929683db8ce 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -551,6 +551,9 @@ struct phy_driver { int (*suspend)(struct phy_device *phydev); int (*resume)(struct phy_device *phydev); + int (*start)(struct phy_device *phydev); + void (*stop)(struct phy_device *phydev); + /* * Configures the advertisement and resets * autonegotiation if phydev->autoneg is on, -- cgit