[Linux-stm32] [PATCH net-next 10/12] net: stmmac: tc956x: add TC956x/QPS615 support

[Andrew Lunn]

> Hi Andrew,
> 
> Yes, the PHY is doing the WoL. And I guess this makes sense as it allows the
> MAC to power down during suspend to save power.
> 
> The INTN pin of QCA8081 is connected to the ETH_0_INT_N of QPS615. And the
> INTN_WOL pin is connected to a SoC GPIO.
> 
> Without this change, I can't get WoL to work. I have a working branch for
> our board here:
> https://github.com/strongtz/linux-radxa-qcom/commits/v7.0.2-8280-wip/

Please take a look at commit

commit 6911308d7d111a9c367293b52f2dc265819f2b60
Author: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>
Date:   Thu Oct 23 10:16:50 2025 +0100

    net: stmmac: convert to phylink-managed Wake-on-Lan

In particular:

    When STMMAC_FLAG_USE_PHY_WOL is not set, we provide the MAC's WoL
    capabilities to phylink, which then allows phylink to choose between
    the PHY and MAC for WoL depending on their individual capabilities
    as described in the phylink commit. This only augments the WoL
    functionality with PHYs that declare to the driver model that they are
    wake-up capable. Currently, very few PHY drivers support this.
    
Could you actually patch the PHY driver to make it list its
capabilities. That is the direction we want to go in the long term,
and not use STMMAC_FLAG_USE_PHY_WOL.

    Andrew