diff options
| author | Gerhard Engleder <gerhard@engleder-embedded.com> | 2025-03-12 21:30:06 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-03-20 08:45:08 +0100 |
| commit | 45456e38c44eda2f1285601398fd289b3cec7002 (patch) | |
| tree | 0fb30d25ebcacd9a76dee45d1c15910c3665f9cc /drivers/net/phy/marvell.c | |
| parent | 3d97da0ee6253d79add79254015623a2cdff9634 (diff) | |
net: phy: Allow loopback speed selection for PHY drivers
PHY drivers support loopback mode, but it is not possible to select the
speed of the loopback mode. The speed is chosen by the set_loopback()
operation of the PHY driver. Same is valid for genphy_loopback().
There are PHYs that support loopback with different speeds. Extend
set_loopback() to make loopback speed selection possible.
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250312203010.47429-2-gerhard@engleder-embedded.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/phy/marvell.c')
| -rw-r--r-- | drivers/net/phy/marvell.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index dd254e36ca8a..f2ad675537d1 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -2131,13 +2131,19 @@ static void marvell_get_stats_simple(struct phy_device *phydev, data[i] = marvell_get_stat_simple(phydev, i); } -static int m88e1510_loopback(struct phy_device *phydev, bool enable) +static int m88e1510_loopback(struct phy_device *phydev, bool enable, int speed) { int err; if (enable) { u16 bmcr_ctl, mscr2_ctl = 0; + if (speed == SPEED_10 || speed == SPEED_100 || + speed == SPEED_1000) + phydev->speed = speed; + else if (speed) + return -EINVAL; + bmcr_ctl = mii_bmcr_encode_fixed(phydev->speed, phydev->duplex); err = phy_write(phydev, MII_BMCR, bmcr_ctl); |