This is a note to let you know that I've just added the patch titled
net: dsa: mv88e6xxx: Increase wait after reset deactivation
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-dsa-mv88e6xxx-increase-wait-after-reset-deactiva.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 81714b608988d66e5be82bdad061c32c1bc33429
Author: Andreas Svensson <andreas.svensson@xxxxxxxx>
Date: Tue May 30 16:52:23 2023 +0200
net: dsa: mv88e6xxx: Increase wait after reset deactivation
[ Upstream commit 3c27f3d53d588618d81d30d6712459a3cc9489b8 ]
A switch held in reset by default needs to wait longer until we can
reliably detect it.
An issue was observed when testing on the Marvell 88E6393X (Link Street).
The driver failed to detect the switch on some upstarts. Increasing the
wait time after reset deactivation solves this issue.
The updated wait time is now also the same as the wait time in the
mv88e6xxx_hardware_reset function.
Fixes: 7b75e49de424 ("net: dsa: mv88e6xxx: wait after reset deactivation")
Signed-off-by: Andreas Svensson <andreas.svensson@xxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Link: https://lore.kernel.org/r/20230530145223.1223993-1-andreas.svensson@xxxxxxxx
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index b593e4d85e9c0..792073a768ac0 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -4840,7 +4840,7 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
goto out;
}
if (chip->reset)
- usleep_range(1000, 2000);
+ usleep_range(10000, 20000);
err = mv88e6xxx_detect(chip);
if (err)
