diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2019-02-09 15:24:47 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-09 09:32:04 -0800 |
| commit | efbdfdc29bdd4dbf79ad4bddc8f7a5ac62c66bfe (patch) | |
| tree | 91e7fe76b8d68927e68c7284dffbc720114ec965 /include | |
| parent | 92ed2eb7f4b73e9944b432e5c8c65ec3ec00eb9d (diff) | |
net: phy: Add support for asking the PHY its abilities
Add support for runtime determination of what the PHY supports, by
adding a new function to the phy driver. The get_features call should
set the phydev->supported member with the features the PHY supports.
It is only called if phydrv->features is NULL.
This requires minor changes to pause. The PHY driver should not set
pause abilities, except for when it has odd cause capabilities, e.g.
pause cannot be disabled. With this change, phydev->supported already
contains the drivers abilities, including pause. So rather than
considering phydrv->features, look at the phydev->supported, and
enable pause if neither of the pause bits are already set.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
[hkallweit1@gmail.com: fixed small checkpatch complaint in one comment]
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/phy.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h index f41bf651f6a0..d2ffae992e4a 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -502,6 +502,12 @@ struct phy_driver { */ int (*probe)(struct phy_device *phydev); + /* + * Probe the hardware to determine what abilities it has. + * Should only set phydev->supported. + */ + int (*get_features)(struct phy_device *phydev); + /* PHY Power Management */ int (*suspend)(struct phy_device *phydev); int (*resume)(struct phy_device *phydev); |