[PATCH net-next v5 6/7] net: phy: qcom: at803x: Avoid hibernating if MAC requires RX clock

[Andrew Lunn]

On Fri, Mar 01, 2024 at 04:35:03PM +0100, Romain Gantois wrote:
> From: Russell King <linux at armlinux.org.uk>
> 
> Stmmac controllers connected to an at803x PHY cannot resume properly after
> suspend when WoL is enabled. This happens because the MAC requires an RX
> clock generated by the PHY to initialize its hardware properly. But the RX
> clock is cut when the PHY suspends and isn't brought up until the MAC
> driver resumes the phylink.
> 
> Prevent the at803x PHY driver from going into suspend if the attached MAC
> driver always requires an RX clock signal.
> 
> Reported-by: Clark Wang <xiaoning.wang at nxp.com>
> Link: https://lore.kernel.org/all/20230202081559.3553637-1-xiaoning.wang@nxp.com/
> Signed-off-by: Russell King <linux at armlinux.org.uk>
> [rgantois: commit log]
> Signed-off-by: Romain Gantois <romain.gantois at bootlin.com>

Reviewed-by: Andrew Lunn <andrew at lunn.ch>

    Andrew