diff options
| author |   Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2024-12-03 15:31:18 +0000 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2024-12-04 19:19:07 -0800 |
| commit | 5d58a890c02770ba8d790b1f3c6e8c0e20514dc2 (patch) | |
| tree | 241df742faa57612edc430af5c46b3f5e073b65c | |
| parent | net: phy: marvell: implement phy_inband_caps() method (diff) | |
| download | wireguard-linux-5d58a890c02770ba8d790b1f3c6e8c0e20514dc2.tar.xz wireguard-linux-5d58a890c02770ba8d790b1f3c6e8c0e20514dc2.zip | |
net: phy: add phy_config_inband()
Add a method to configure the PHY's in-band mode.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUru-006IUI-08@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/phy/phy.c | 32 | ||||
| -rw-r--r-- | include/linux/phy.h | 6 |
2 files changed, 38 insertions, 0 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index f42cd6584841..0c228aa18019 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -1027,6 +1027,38 @@ unsigned int phy_inband_caps(struct phy_device *phydev, EXPORT_SYMBOL_GPL(phy_inband_caps); /** + * phy_config_inband - configure the desired PHY in-band mode + * @phydev: the phy_device struct + * @modes: in-band modes to configure + * + * Description: disables, enables or enables-with-bypass in-band signalling + * between the PHY and host system. + * + * Returns: zero on success, or negative errno value. + */ +int phy_config_inband(struct phy_device *phydev, unsigned int modes) +{ + int err; + + if (!!(modes & LINK_INBAND_DISABLE) + + !!(modes & LINK_INBAND_ENABLE) + + !!(modes & LINK_INBAND_BYPASS) != 1) + return -EINVAL; + + mutex_lock(&phydev->lock); + if (!phydev->drv) + err = -EIO; + else if (!phydev->drv->config_inband) + err = -EOPNOTSUPP; + else + err = phydev->drv->config_inband(phydev, modes); + mutex_unlock(&phydev->lock); + + return err; +} +EXPORT_SYMBOL(phy_config_inband); + +/** * _phy_start_aneg - start auto-negotiation for this PHY device * @phydev: the phy_device struct * diff --git a/include/linux/phy.h b/include/linux/phy.h index ccb93d892da9..61a1bc81f597 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -983,6 +983,11 @@ struct phy_driver { phy_interface_t interface); /** + * @config_inband: configure in-band mode for the PHY + */ + int (*config_inband)(struct phy_device *phydev, unsigned int modes); + + /** * @get_rate_matching: Get the supported type of rate matching for a * particular phy interface. This is used by phy consumers to determine * whether to advertise lower-speed modes for that interface. It is @@ -1846,6 +1851,7 @@ int phy_start_aneg(struct phy_device *phydev); int phy_aneg_done(struct phy_device *phydev); unsigned int phy_inband_caps(struct phy_device *phydev, phy_interface_t interface); +int phy_config_inband(struct phy_device *phydev, unsigned int modes); int phy_speed_down(struct phy_device *phydev, bool sync); int phy_speed_up(struct phy_device *phydev); bool phy_check_valid(int speed, int duplex, unsigned long *features); |