target/linux/generic/backport-4.9/076-v4.11-0001-net-phy-broadcom-Allow-enabling-or-disabling-of-EEE.patch

   1 From: Florian Fainelli <f.fainelli@gmail.com>
   2 Date: Tue, 22 Nov 2016 11:40:56 -0800
   3 Subject: [PATCH] net: phy: broadcom: Allow enabling or disabling of EEE
   4
   5 In preparation for adding support for Wirespeed/downshift, we need to
   6 change bcm_phy_eee_enable() to allow enabling or disabling EEE, so make
   7 the function take an extra enable/disable boolean parameter and rename
   8 it to illustrate it sets EEE, not necessarily just enables it.
   9
  10 Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
  11 Signed-off-by: David S. Miller <davem@davemloft.net>
  12 ---
  13
  14 --- a/drivers/net/phy/bcm7xxx.c
  15 +++ b/drivers/net/phy/bcm7xxx.c
  16 @@ -199,7 +199,7 @@ static int bcm7xxx_28nm_config_init(stru
  17         if (ret)
  18                 return ret;
  19
  20 -       ret = bcm_phy_enable_eee(phydev);
  21 +       ret = bcm_phy_set_eee(phydev, true);
  22         if (ret)
  23                 return ret;
  24
  25 --- a/drivers/net/phy/bcm-cygnus.c
  26 +++ b/drivers/net/phy/bcm-cygnus.c
  27 @@ -104,7 +104,7 @@ static int bcm_cygnus_config_init(struct
  28                 return rc;
  29
  30         /* Advertise EEE */
  31 -       rc = bcm_phy_enable_eee(phydev);
  32 +       rc = bcm_phy_set_eee(phydev, true);
  33         if (rc)
  34                 return rc;
  35
  36 --- a/drivers/net/phy/bcm-phy-lib.c
  37 +++ b/drivers/net/phy/bcm-phy-lib.c
  38 @@ -195,7 +195,7 @@ int bcm_phy_enable_apd(struct phy_device
  39  }
  40  EXPORT_SYMBOL_GPL(bcm_phy_enable_apd);
  41
  42 -int bcm_phy_enable_eee(struct phy_device *phydev)
  43 +int bcm_phy_set_eee(struct phy_device *phydev, bool enable)
  44  {
  45         int val;
  46
  47 @@ -205,7 +205,10 @@ int bcm_phy_enable_eee(struct phy_device
  48         if (val < 0)
  49                 return val;
  50
  51 -       val |= LPI_FEATURE_EN | LPI_FEATURE_EN_DIG1000X;
  52 +       if (enable)
  53 +               val |= LPI_FEATURE_EN | LPI_FEATURE_EN_DIG1000X;
  54 +       else
  55 +               val &= ~(LPI_FEATURE_EN | LPI_FEATURE_EN_DIG1000X);
  56
  57         phy_write_mmd_indirect(phydev, BRCM_CL45VEN_EEE_CONTROL,
  58                                MDIO_MMD_AN, (u32)val);
  59 @@ -216,14 +219,17 @@ int bcm_phy_enable_eee(struct phy_device
  60         if (val < 0)
  61                 return val;
  62
  63 -       val |= (MDIO_AN_EEE_ADV_100TX | MDIO_AN_EEE_ADV_1000T);
  64 +       if (enable)
  65 +               val |= (MDIO_AN_EEE_ADV_100TX | MDIO_AN_EEE_ADV_1000T);
  66 +       else
  67 +               val &= ~(MDIO_AN_EEE_ADV_100TX | MDIO_AN_EEE_ADV_1000T);
  68
  69         phy_write_mmd_indirect(phydev, BCM_CL45VEN_EEE_ADV,
  70                                MDIO_MMD_AN, (u32)val);
  71
  72         return 0;
  73  }
  74 -EXPORT_SYMBOL_GPL(bcm_phy_enable_eee);
  75 +EXPORT_SYMBOL_GPL(bcm_phy_set_eee);
  76
  77  MODULE_DESCRIPTION("Broadcom PHY Library");
  78  MODULE_LICENSE("GPL v2");
  79 --- a/drivers/net/phy/bcm-phy-lib.h
  80 +++ b/drivers/net/phy/bcm-phy-lib.h
  81 @@ -43,5 +43,5 @@ int bcm_phy_config_intr(struct phy_devic
  82
  83  int bcm_phy_enable_apd(struct phy_device *phydev, bool dll_pwr_down);
  84
  85 -int bcm_phy_enable_eee(struct phy_device *phydev);
  86 +int bcm_phy_set_eee(struct phy_device *phydev, bool enable);
  87  #endif /* _LINUX_BCM_PHY_LIB_H */