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net: usb: Correct reset handling of smsc95xx

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commit 0bf3885324 upstream.

On boards with LAN9514 and no preconfigured MAC address we don't get an
ip address from DHCP after commit a049a30fc2 ("net: usb: Correct PHY handling
of smsc95xx") anymore. Adding an explicit reset before starting the phy
fixes the issue.

[1]
https://lore.kernel.org/netdev/199eebbd6b97f52b9119c9fa4fd8504f8a34de18.camel@collabora.com/

From: Gabriel Hojda <ghojda@yo2urs.ro>
Fixes: a049a30fc2 ("net: usb: Correct PHY handling of smsc95xx")
Signed-off-by: Gabriel Hojda <ghojda@yo2urs.ro>
Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Markus Reichl 2022-01-13 21:01:11 +01:00 committed by Greg Kroah-Hartman
parent a15a5eabae
commit 7055782bc7
1 changed files with 2 additions and 1 deletions
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3
drivers/net/usb/smsc95xx.c
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@ -1961,7 +1961,8 @@ static const struct driver_info smsc95xx_info = {
.bind = smsc95xx_bind, .bind = smsc95xx_bind,
.unbind = smsc95xx_unbind, .unbind = smsc95xx_unbind,
.link_reset = smsc95xx_link_reset, .link_reset = smsc95xx_link_reset,
.reset = smsc95xx_start_phy, .reset = smsc95xx_reset,
.check_connect = smsc95xx_start_phy,
.stop = smsc95xx_stop, .stop = smsc95xx_stop,
.rx_fixup = smsc95xx_rx_fixup, .rx_fixup = smsc95xx_rx_fixup,
.tx_fixup = smsc95xx_tx_fixup, .tx_fixup = smsc95xx_tx_fixup,