On 14/07/15 12:37, Florian Fainelli wrote:
> We are currently issuing multiple PHY resets during a suspend/resume,
> first during bcmgenet_power_up() which does a hardware reset, then a
> software reset by calling bcmgenet_mii_reset(). This is both unnecessary
> and can take as long as 10ms per MDIO transactions while we re-apply
> workarounds because we do not yet have MDIO interrupts enabled.
>
> phy_resume() takes care of re-apply our workarounds in case we need any,
> and bcmgenet_power_up() does a PHY hardware reset, all of this is more
> than enough to guarantee that the PHY operates correctly.
David, please discard this version, I will send one which actually
compiles, sorry about that.
>
> Fixes: 1c1008c793fa4 ("net: bcmgenet: add main driver file")
> Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
> ---
> drivers/net/ethernet/broadcom/genet/bcmgenet.c | 3 ---
> drivers/net/ethernet/broadcom/genet/bcmgenet.h | 1 -
> drivers/net/ethernet/broadcom/genet/bcmmii.c | 10 ----------
> 3 files changed, 14 deletions(-)
>
> diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
> b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
> index 64c1e9db6b0b..674f374dceee 100644
> --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
> +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
> @@ -907,9 +907,6 @@ static void bcmgenet_power_up(struct bcmgenet_priv *priv,
> }
>
> bcmgenet_ext_writel(priv, reg, EXT_EXT_PWR_MGMT);
> -
> - if (mode == GENET_POWER_PASSIVE)
> - bcmgenet_mii_reset(priv->dev);
> }
>
> /* ioctl handle special commands that are not present in ethtool. */
> diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
> b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
> index 6159deab8c98..9f9ac0089d4d 100644
> --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
> +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
> @@ -672,7 +672,6 @@ GENET_IO_MACRO(rbuf, GENET_RBUF_OFF);
> int bcmgenet_mii_init(struct net_device *dev);
> int bcmgenet_mii_config(struct net_device *dev, bool init);
> void bcmgenet_mii_exit(struct net_device *dev);
> -void bcmgenet_mii_reset(struct net_device *dev);
> void bcmgenet_phy_power_set(struct net_device *dev, bool enable);
> void bcmgenet_mii_setup(struct net_device *dev);
>
> diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c
> b/drivers/net/ethernet/broadcom/genet/bcmmii.c
> index adf23d2ac488..2a8f97299b13 100644
> --- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
> +++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
> @@ -163,16 +163,6 @@ void bcmgenet_mii_setup(struct net_device *dev)
> phy_print_status(phydev);
> }
>
> -void bcmgenet_mii_reset(struct net_device *dev)
> -{
> - struct bcmgenet_priv *priv = netdev_priv(dev);
> -
> - if (priv->phydev) {
> - phy_init_hw(priv->phydev);
> - phy_start_aneg(priv->phydev);
> - }
> -}
> -
> void bcmgenet_phy_power_set(struct net_device *dev, bool enable)
> {
> struct bcmgenet_priv *priv = netdev_priv(dev);
>
--
Florian
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