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net: phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ8081

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[ Upstream commit 764d31cacfe48440745c4bbb55a62ac9471c9f19 ]

Following a similar reinstate for the KSZ9031.

Older kernels would use the genphy_soft_reset if the PHY did not implement
a .soft_reset.

Bluntly removing that default may expose a lot of situations where various
PHYs/board implementations won't recover on various changes.
Like with this implementation during a 4.9.x to 5.4.x LTS transition.
I think it's a good thing to remove unwanted soft resets but wonder if it
did open a can of worms?

Atleast this fixes one iMX6 FEC/RMII/8081 combo.

Fixes: 6e2d85ec0559 ("net: phy: Stop with excessive soft reset")
Signed-off-by: Christian Melki <christian.melki@t2data.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20210224205536.9349-1-christian.melki@t2data.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christian Melki 2021-02-24 21:55:36 +01:00 committed by Greg Kroah-Hartman
parent 33cafc7952
commit 8545519b1f
1 changed files with 1 additions and 0 deletions
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drivers/net/phy/micrel.c
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@ -1263,6 +1263,7 @@ static struct phy_driver ksphy_driver[] = {
.probe = kszphy_probe,
.config_init = ksz8081_config_init,
.ack_interrupt = kszphy_ack_interrupt,
.soft_reset = genphy_soft_reset,
.config_intr = kszphy_config_intr,
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,