git.openwrt.org Git - openwrt/staging/blogic.git/blob

   1 From f058b2dd70b1a5503dff899010aeb53b436091e5 Mon Sep 17 00:00:00 2001
   2 From: Robert Marko <robimarko@gmail.com>
   3 Date: Wed, 28 Feb 2024 18:24:09 +0100
   4 Subject: [PATCH 1/2] net: phy: qcom: qca808x: add helper for checking for 1G
   5  only model
   6
   7 There are 2 versions of QCA808x, one 2.5G capable and one 1G capable.
   8 Currently, this matter only in the .get_features call however, it will
   9 be required for filling supported interface modes so lets add a helper
  10 that can be reused.
  11
  12 Signed-off-by: Robert Marko <robimarko@gmail.com>
  13 Signed-off-by: David S. Miller <davem@davemloft.net>
  14 ---
  15  drivers/net/phy/qcom/qca808x.c | 17 ++++++++++++-----
  16  1 file changed, 12 insertions(+), 5 deletions(-)
  17
  18 --- a/drivers/net/phy/qcom/qca808x.c
  19 +++ b/drivers/net/phy/qcom/qca808x.c
  20 @@ -156,6 +156,17 @@ static bool qca808x_has_fast_retrain_or_
  21         return linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);
  22  }
  23
  24 +static bool qca808x_is_1g_only(struct phy_device *phydev)
  25 +{
  26 +       int ret;
  27 +
  28 +       ret = phy_read_mmd(phydev, MDIO_MMD_AN, QCA808X_PHY_MMD7_CHIP_TYPE);
  29 +       if (ret < 0)
  30 +               return true;
  31 +
  32 +       return !!(QCA808X_PHY_CHIP_TYPE_1G & ret);
  33 +}
  34 +
  35  static int qca808x_probe(struct phy_device *phydev)
  36  {
  37         struct device *dev = &phydev->mdio.dev;
  38 @@ -350,11 +361,7 @@ static int qca808x_get_features(struct p
  39          * existed in the bit0 of MMD1.21, we need to remove it manually if
  40          * it is the qca8081 1G chip according to the bit0 of MMD7.0x901d.
  41          */
  42 -       ret = phy_read_mmd(phydev, MDIO_MMD_AN, QCA808X_PHY_MMD7_CHIP_TYPE);
  43 -       if (ret < 0)
  44 -               return ret;
  45 -
  46 -       if (QCA808X_PHY_CHIP_TYPE_1G & ret)
  47 +       if (qca808x_is_1g_only(phydev))
  48                 linkmode_clear_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);
  49
  50         return 0;