diff options
| author | Baruch Siach <baruch@tkos.co.il> | 2019-06-27 21:17:39 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-04 10:33:33 +0300 |
| commit | 4f6e4d1e03a442fad80c1fc1e62d9d27518ecffe (patch) | |
| tree | ee41bfdc0f51041c5f88d7384d3f5bb50e3fa0c0 /drivers/net/dsa | |
| parent | 1a9480725757bf30e05c386b7640cd5e8fdf86c2 (diff) | |
| download | linux-4f6e4d1e03a442fad80c1fc1e62d9d27518ecffe.tar.xz | |
net: dsa: mv88e6xxx: wait after reset deactivation
[ Upstream commit 7b75e49de424ceb53d13e60f35d0a73765626fda ]
Add a 1ms delay after reset deactivation. Otherwise the chip returns
bogus ID value. This is observed with 88E6390 (Peridot) chip.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/dsa')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 2edd193c96ab..f157b81551b7 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -3846,6 +3846,8 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev) mv88e6xxx_mdio_unregister(chip); return err; } + if (chip->reset) + usleep_range(1000, 2000); return 0; } |