net: bcmgenet: ensure EXT_ENERGY_DET_MASK is clear

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commit 5a3c680aa2 upstream.

Setting the EXT_ENERGY_DET_MASK bit allows the port energy detection
logic of the internal PHY to prevent the system from sleeping. Some
internal PHYs will report that energy is detected when the network
interface is closed which can prevent the system from going to sleep
if WoL is enabled when the interface is brought down.

Since the driver does not support waking the system on this logic,
this commit clears the bit whenever the internal PHY is powered up
and the other logic for manipulating the bit is removed since it
serves no useful function.

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Doug Berger 2021-06-29 17:14:19 -07:00 • committed by Greg Kroah-Hartman

parent 4e275a4aca

commit fcb970edc0

2 changed files with 2 additions and 21 deletions

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17

drivers/net/ethernet/broadcom/genet/bcmgenet.c

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6

drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c

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