Subject: Re: [PATCH 2/5] net: phy: hook up clause 45 autonegotiation restart

From: Andrew Lunn <[email-masked]>
Date: Thu, 1 Jun 2017 14:23:50 +0200

On Thu, Jun 01, 2017 at 11:26:36AM +0100, Russell King wrote:
> genphy_restart_aneg() can only restart autonegotiation on clause 22
> PHYs.  Add a phy_restart_aneg() function which selects between the
> clause 22 and clause 45 restart functionality depending on the PHY
> type.
> 
> Signed-off-by: Russell King <[email-masked]>
> ---
>  drivers/net/phy/phy.c | 23 +++++++++++++++++++++--
>  include/linux/phy.h   |  1 +
>  2 files changed, 22 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
> index 82ab8fb82587..25b24789a409 100644
> --- a/drivers/net/phy/phy.c
> +++ b/drivers/net/phy/phy.c
> @@ -149,6 +149,25 @@ static int phy_config_interrupt(struct phy_device *phydev, u32 interrupts)
>  	return 0;
>  }
>  
> +/**
> + * phy_restart_aneg - restart auto-negotiation
> + * @phydev: target phy_device struct
> + *
> + * Restart the autonegotiation on @phydev.  Returns >= 0 on success or
> + * negative errno on error.
> + */
> +int phy_restart_aneg(struct phy_device *phydev)
> +{
> +	int ret;
> +
> +	if (phydev->is_c45)
> +		ret = genphy_c45_restart_aneg(phydev);
> +	else
> +		ret = genphy_restart_aneg(phydev);
> +
> +	return ret;
> +}
> +EXPORT_SYMBOL_GPL(phy_restart_aneg);

Hi Russell

Isn't the same sort of thing needed in phy_aneg_done()?

Thanks
	Andrew