target/linux/layerscape/patches-5.4/701-net-0175-staging-fsl-dpaa2-mac-connect-to-the-fixed-phy.patch

   1 From 69e35d8266713d36ad31b04d9b7cb32913d243c0 Mon Sep 17 00:00:00 2001
   2 From: Ioana Ciornei <ioana.ciornei@nxp.com>
   3 Date: Tue, 27 Nov 2018 15:23:47 +0200
   4 Subject: [PATCH] staging: fsl-dpaa2/mac: connect to the fixed phy
   5
   6 This patch is formed from 2 parts:
   7    - first it moves the code that determines the if_mode to the
   8      beginning so that it's used for both fixed link and phy mode.
   9    - secondly, when in fixed link mode, call the phy_connect_phy
  10      function as needed.
  11
  12 Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
  13 ---
  14  drivers/staging/fsl-dpaa2/mac/mac.c | 39 ++++++++++++++++++++++++-------------
  15  1 file changed, 25 insertions(+), 14 deletions(-)
  16
  17 --- a/drivers/staging/fsl-dpaa2/mac/mac.c
  18 +++ b/drivers/staging/fsl-dpaa2/mac/mac.c
  19 @@ -642,21 +642,12 @@ static int dpaa2_mac_probe(struct fsl_mc
  20         }
  21  #endif /* CONFIG_FSL_DPAA2_MAC_NETDEVS */
  22
  23 -       /* probe the PHY as fixed-link if the DPMAC attribute indicates so */
  24 -       if (priv->attr.link_type == DPMAC_LINK_TYPE_FIXED)
  25 -               goto probe_fixed_link;
  26 -
  27 -       /* or if there's no phy-handle defined in the device tree */
  28 -       phy_node = of_parse_phandle(dpmac_node, "phy-handle", 0);
  29 -       if (!phy_node) {
  30 -               goto probe_fixed_link;
  31 -       }
  32 -
  33 +       /* get the interface mode from the dpmac of node or from the MC attributes */
  34         if_mode = of_get_phy_mode(dpmac_node);
  35         if (if_mode >= 0) {
  36                 dev_dbg(dev, "\tusing if mode %s for eth_if %d\n",
  37                         phy_modes(if_mode), priv->attr.eth_if);
  38 -               goto phy_connect;
  39 +               goto link_type;
  40         }
  41
  42         if (priv->attr.eth_if < ARRAY_SIZE(dpaa2_mac_iface_mode)) {
  43 @@ -664,12 +655,23 @@ static int dpaa2_mac_probe(struct fsl_mc
  44                 dev_dbg(dev, "\tusing if mode %s for eth_if %d\n",
  45                         phy_modes(if_mode), priv->attr.eth_if);
  46         } else {
  47 -               dev_warn(dev, "Unexpected interface mode %d, will probe as fixed link\n",
  48 -                        priv->attr.eth_if);
  49 +               dev_err(dev, "Unexpected interface mode %d\n",
  50 +                       priv->attr.eth_if);
  51 +               err = -EINVAL;
  52 +               goto err_no_if_mode;
  53 +       }
  54 +
  55 +link_type:
  56 +       /* probe the PHY as fixed-link if the DPMAC attribute indicates so */
  57 +       if (priv->attr.link_type == DPMAC_LINK_TYPE_FIXED)
  58 +               goto probe_fixed_link;
  59 +
  60 +       /* or if there's no phy-handle defined in the device tree */
  61 +       phy_node = of_parse_phandle(dpmac_node, "phy-handle", 0);
  62 +       if (!phy_node) {
  63                 goto probe_fixed_link;
  64         }
  65
  66 -phy_connect:
  67         /* try to connect to the PHY */
  68         netdev->phydev = of_phy_connect(netdev, phy_node,
  69                                         &dpaa2_mac_link_changed, 0, if_mode);
  70 @@ -702,6 +704,14 @@ probe_fixed_link:
  71                         err = -EFAULT;
  72                         goto err_no_phy;
  73                 }
  74 +
  75 +               err = phy_connect_direct(netdev, netdev->phydev,
  76 +                                        &dpaa2_mac_link_changed, if_mode);
  77 +               if (err) {
  78 +                       dev_err(dev, "error trying to connect to PHY\n");
  79 +                       goto err_no_phy;
  80 +               }
  81 +
  82                 dev_info(dev, "Registered fixed PHY.\n");
  83         }
  84
  85 @@ -709,6 +719,7 @@ probe_fixed_link:
  86
  87         return 0;
  88
  89 +err_no_if_mode:
  90  err_defer:
  91  err_no_phy:
  92  #ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS