From a816617f336df08f0333c425148bc53d3def0a9d 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 45f75533c47c..52d92c37bd8a 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -1022,6 +1022,8 @@ 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); @@ -1055,6 +1057,9 @@ 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 282e95336c35..dead9f9b6b8d 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -738,6 +738,9 @@ struct phy_driver { /** @resume: Resume the hardware, restoring state if needed */ int (*resume)(struct phy_device *phydev); + int (*start)(struct phy_device *phydev); + void (*stop)(struct phy_device *phydev); + /** * @config_aneg: Configures the advertisement and resets * autonegotiation if phydev->autoneg is on, -- cgit