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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-07-31 09:39:56 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-07-31 09:39:56 +0200
commitfe3015748a905e08eb0e1750aa2928f520063d59 (patch)
treed15524d1f7931e8e5964e9ff8368792d09282da5 /drivers/net/phy
parent16aae4c64600a6319a6f10dbff833fa198bf9599 (diff)
parent5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 (diff)
Merge 6.5-rc4 into tty-next
We need the serial/tty fixes in here as well for testing and future development. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/phy')
-rw-r--r--drivers/net/phy/marvell10g.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
index 55d9d7acc32e..d4bb90d76881 100644
--- a/drivers/net/phy/marvell10g.c
+++ b/drivers/net/phy/marvell10g.c
@@ -328,6 +328,13 @@ static int mv3310_power_up(struct phy_device *phydev)
ret = phy_clear_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
MV_V2_PORT_CTRL_PWRDOWN);
+ /* Sometimes, the power down bit doesn't clear immediately, and
+ * a read of this register causes the bit not to clear. Delay
+ * 100us to allow the PHY to come out of power down mode before
+ * the next access.
+ */
+ udelay(100);
+
if (phydev->drv->phy_id != MARVELL_PHY_ID_88X3310 ||
priv->firmware_ver < 0x00030000)
return ret;