Re: [PATCH net-next v1 1/1] net: usb: asix: ax88772: suspend PHY on driver probe

[Florian Fainelli <f.fainelli@gmail.com>]

On 6/28/21 9:43 PM, Oleksij Rempel wrote:
> After probe/bind sequence is the PHY in active state, even if interface
> is stopped. As result, on some systems like Samsung Exynos5250 SoC based Arndale
> board, the ASIX PHY will be able to negotiate the link but fail to
> transmit the data.
> 
> To handle it, suspend the PHY on probe.

Very unusual, could not the PHY be attached/connected to a ndo_open()
time like what most drivers do?

> 
> Fixes: e532a096be0e ("net: usb: asix: ax88772: add phylib support")
> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
> Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
> ---
>  drivers/net/usb/asix_devices.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
> index aec97b021a73..2c115216420a 100644
> --- a/drivers/net/usb/asix_devices.c
> +++ b/drivers/net/usb/asix_devices.c
> @@ -701,6 +701,7 @@ static int ax88772_init_phy(struct usbnet *dev)
>  		return ret;
>  	}
>  
> +	phy_suspend(priv->phydev);
>  	priv->phydev->mac_managed_pm = 1;
>  
>  	phy_attached_info(priv->phydev);
> 


-- 
Florian