Re: [PATCH net backport to 4.4,4.9] net: bcmgenet: ensure EXT_ENERGY_DET_MASK is clear

[Florian Fainelli]

On 7/22/2021 5:15 PM, Doug Berger wrote:
> [ Upstream commit 5a3c680aa2c12c90c44af383fe6882a39875ab81 ]
>
> 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: 1c1008c793fa ("net: bcmgenet: add main driver file")
> Signed-off-by: Doug Berger <opendmb@xxxxxxxxx>

Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
--
Florian