Commit 5d58a890 authored by Russell King (Oracle)'s avatar Russell King (Oracle) Committed by Jakub Kicinski
Browse files

net: phy: add phy_config_inband() 



Add a method to configure the PHY's in-band mode.

Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarRussell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUru-006IUI-08@rmk-PC.armlinux.org.uk


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 1c86828d

drivers/net/phy/phy.c

+32 −0
Original line number Diff line number Diff line
@@ -1026,6 +1026,38 @@ 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

include/linux/phy.h

+6 −0
Original line number Diff line number Diff line
@@ -982,6 +982,11 @@ struct phy_driver { 
	unsigned int (*inband_caps)(struct phy_device *phydev,

				    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
@@ -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);