target/linux/generic/backport-6.1/706-v6.6-05-net-phy-at803x-remove-qca8081-1G-fast-retrain-and-sl.patch

   1 From df9401ff3e6eeaa42bfb06761967f1b71f5afce7 Mon Sep 17 00:00:00 2001
   2 From: Luo Jie <quic_luoj@quicinc.com>
   3 Date: Sun, 16 Jul 2023 16:49:23 +0800
   4 Subject: [PATCH 5/6] net: phy: at803x: remove qca8081 1G fast retrain and
   5  slave seed config
   6
   7 The fast retrain and slave seed configs are only applicable when the 2.5G
   8 ability is supported.
   9
  10 Signed-off-by: Luo Jie <quic_luoj@quicinc.com>
  11 Reviewed-by: Andrew Lunn <andrew@lunn.ch>
  12 Signed-off-by: David S. Miller <davem@davemloft.net>
  13 ---
  14  drivers/net/phy/at803x.c | 50 +++++++++++++++++++++++++---------------
  15  1 file changed, 32 insertions(+), 18 deletions(-)
  16
  17 --- a/drivers/net/phy/at803x.c
  18 +++ b/drivers/net/phy/at803x.c
  19 @@ -1755,6 +1755,11 @@ static bool qca808x_is_prefer_master(str
  20                 (phydev->master_slave_get == MASTER_SLAVE_CFG_MASTER_PREFERRED);
  21  }
  22
  23 +static bool qca808x_has_fast_retrain_or_slave_seed(struct phy_device *phydev)
  24 +{
  25 +       return linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);
  26 +}
  27 +
  28  static int qca808x_config_init(struct phy_device *phydev)
  29  {
  30         int ret;
  31 @@ -1771,20 +1776,24 @@ static int qca808x_config_init(struct ph
  32         if (ret)
  33                 return ret;
  34
  35 -       /* Config the fast retrain for the link 2500M */
  36 -       ret = qca808x_phy_fast_retrain_config(phydev);
  37 -       if (ret)
  38 -               return ret;
  39 -
  40 -       ret = genphy_read_master_slave(phydev);
  41 -       if (ret < 0)
  42 -               return ret;
  43 -
  44 -       if (!qca808x_is_prefer_master(phydev)) {
  45 -               /* Enable seed and configure lower ramdom seed to make phy linked as slave mode */
  46 -               ret = qca808x_phy_ms_seed_enable(phydev, true);
  47 +       if (qca808x_has_fast_retrain_or_slave_seed(phydev)) {
  48 +               /* Config the fast retrain for the link 2500M */
  49 +               ret = qca808x_phy_fast_retrain_config(phydev);
  50                 if (ret)
  51                         return ret;
  52 +
  53 +               ret = genphy_read_master_slave(phydev);
  54 +               if (ret < 0)
  55 +                       return ret;
  56 +
  57 +               if (!qca808x_is_prefer_master(phydev)) {
  58 +                       /* Enable seed and configure lower ramdom seed to make phy
  59 +                        * linked as slave mode.
  60 +                        */
  61 +                       ret = qca808x_phy_ms_seed_enable(phydev, true);
  62 +                       if (ret)
  63 +                               return ret;
  64 +               }
  65         }
  66
  67         /* Configure adc threshold as 100mv for the link 10M */
  68 @@ -1826,11 +1835,13 @@ static int qca808x_read_status(struct ph
  69                  * value is configured as the same value, the link can't be up and no link change
  70                  * occurs.
  71                  */
  72 -               if (phydev->master_slave_state == MASTER_SLAVE_STATE_ERR ||
  73 -                               qca808x_is_prefer_master(phydev)) {
  74 -                       qca808x_phy_ms_seed_enable(phydev, false);
  75 -               } else {
  76 -                       qca808x_phy_ms_seed_enable(phydev, true);
  77 +               if (qca808x_has_fast_retrain_or_slave_seed(phydev)) {
  78 +                       if (phydev->master_slave_state == MASTER_SLAVE_STATE_ERR ||
  79 +                                       qca808x_is_prefer_master(phydev)) {
  80 +                               qca808x_phy_ms_seed_enable(phydev, false);
  81 +                       } else {
  82 +                               qca808x_phy_ms_seed_enable(phydev, true);
  83 +                       }
  84                 }
  85         }
  86
  87 @@ -1845,7 +1856,10 @@ static int qca808x_soft_reset(struct phy
  88         if (ret < 0)
  89                 return ret;
  90
  91 -       return qca808x_phy_ms_seed_enable(phydev, true);
  92 +       if (qca808x_has_fast_retrain_or_slave_seed(phydev))
  93 +               ret = qca808x_phy_ms_seed_enable(phydev, true);
  94 +
  95 +       return ret;
  96  }
  97
  98  static bool qca808x_cdt_fault_length_valid(int cdt_code)