target/linux/mvebu/patches-4.4/142-phylink-add-EEE-support.patch

   1 From ffba226d73a2be262fff12d30aecf76d107b2ace Mon Sep 17 00:00:00 2001
   2 From: Russell King <rmk+kernel@arm.linux.org.uk>
   3 Date: Thu, 1 Oct 2015 21:19:53 +0100
   4 Subject: [PATCH 730/744] phylink: add EEE support
   5
   6 Add EEE hooks to phylink to allow the phylib EEE functions for the
   7 connected phy to be safely accessed.
   8
   9 Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  10 ---
  11  drivers/net/phy/phylink.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++-
  12  include/linux/phylink.h   |  7 +++++-
  13  2 files changed, 63 insertions(+), 2 deletions(-)
  14
  15 --- a/drivers/net/phy/phylink.c
  16 +++ b/drivers/net/phy/phylink.c
  17 @@ -334,7 +334,8 @@ static void phylink_resolve(struct work_
  18                         if (pl->phydev)
  19                                 phylink_mac_config(pl, &link_state);
  20
  21 -                       pl->ops->mac_link_up(ndev, pl->link_an_mode);
  22 +                       pl->ops->mac_link_up(ndev, pl->link_an_mode,
  23 +                                            pl->phydev);
  24
  25                         netif_carrier_on(ndev);
  26
  27 @@ -818,6 +819,61 @@ int phylink_ethtool_set_pauseparam(struc
  28  }
  29  EXPORT_SYMBOL_GPL(phylink_ethtool_set_pauseparam);
  30
  31 +int phylink_init_eee(struct phylink *pl, bool clk_stop_enable)
  32 +{
  33 +       int ret = -EPROTONOSUPPORT;
  34 +
  35 +       mutex_lock(&pl->config_mutex);
  36 +       if (pl->phydev)
  37 +               ret = phy_init_eee(pl->phydev, clk_stop_enable);
  38 +       mutex_unlock(&pl->config_mutex);
  39 +
  40 +       return ret;
  41 +}
  42 +EXPORT_SYMBOL_GPL(phylink_init_eee);
  43 +
  44 +int phylink_get_eee_err(struct phylink *pl)
  45 +{
  46 +       int ret = 0;
  47 +
  48 +       mutex_lock(&pl->config_mutex);
  49 +       if (pl->phydev)
  50 +               ret = phy_get_eee_err(pl->phydev);
  51 +       mutex_unlock(&pl->config_mutex);
  52 +
  53 +       return ret;
  54 +}
  55 +EXPORT_SYMBOL_GPL(phylink_get_eee_err);
  56 +
  57 +int phylink_ethtool_get_eee(struct phylink *pl, struct ethtool_eee *eee)
  58 +{
  59 +       int ret = -EOPNOTSUPP;
  60 +
  61 +       mutex_lock(&pl->config_mutex);
  62 +       if (pl->phydev)
  63 +               ret = phy_ethtool_get_eee(pl->phydev, eee);
  64 +       mutex_unlock(&pl->config_mutex);
  65 +
  66 +       return ret;
  67 +}
  68 +EXPORT_SYMBOL_GPL(phylink_ethtool_get_eee);
  69 +
  70 +int phylink_ethtool_set_eee(struct phylink *pl, struct ethtool_eee *eee)
  71 +{
  72 +       int ret = -EOPNOTSUPP;
  73 +
  74 +       mutex_lock(&pl->config_mutex);
  75 +       if (pl->phydev) {
  76 +               ret = phy_ethtool_set_eee(pl->phydev, eee);
  77 +               if (ret == 0 && eee->eee_enabled)
  78 +                       phy_start_aneg(pl->phydev);
  79 +       }
  80 +       mutex_unlock(&pl->config_mutex);
  81 +
  82 +       return ret;
  83 +}
  84 +EXPORT_SYMBOL_GPL(phylink_ethtool_set_eee);
  85 +
  86  /* This emulates MII registers for a fixed-mode phy operating as per the
  87   * passed in state. "aneg" defines if we report negotiation is possible.
  88   *
  89 --- a/include/linux/phylink.h
  90 +++ b/include/linux/phylink.h
  91 @@ -51,7 +51,8 @@ struct phylink_mac_ops {
  92         void (*mac_an_restart)(struct net_device *, unsigned int mode);
  93
  94         void (*mac_link_down)(struct net_device *, unsigned int mode);
  95 -       void (*mac_link_up)(struct net_device *, unsigned int mode);
  96 +       void (*mac_link_up)(struct net_device *, unsigned int mode,
  97 +                           struct phy_device *);
  98  };
  99
 100  struct phylink *phylink_create(struct net_device *, struct device_node *,
 101 @@ -74,6 +75,10 @@ void phylink_ethtool_get_pauseparam(stru
 102                                     struct ethtool_pauseparam *);
 103  int phylink_ethtool_set_pauseparam(struct phylink *,
 104                                    struct ethtool_pauseparam *);
 105 +int phylink_init_eee(struct phylink *, bool);
 106 +int phylink_get_eee_err(struct phylink *);
 107 +int phylink_ethtool_get_eee(struct phylink *, struct ethtool_eee *);
 108 +int phylink_ethtool_set_eee(struct phylink *, struct ethtool_eee *);
 109  int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
 110
 111  void phylink_set_link_port(struct phylink *pl, u32 support, u8 port);