target/linux/generic/backport-6.6/717-v6.9-net-phy-qca807x-move-interface-mode-check-to-.config.patch

   1 From 3be0d950b62852a693182cb678948f481de02825 Mon Sep 17 00:00:00 2001
   2 From: Robert Marko <robimarko@gmail.com>
   3 Date: Mon, 12 Feb 2024 12:49:34 +0100
   4 Subject: [PATCH] net: phy: qca807x: move interface mode check to
   5  .config_init_once
   6
   7 Currently, we are checking whether the PHY package mode matches the
   8 individual PHY interface modes at PHY package probe time, but at that time
   9 we only know the PHY package mode and not the individual PHY interface
  10 modes as of_get_phy_mode() that populates it will only get called once the
  11 netdev to which PHY-s are attached to is being probed and thus this check
  12 will always fail and return -EINVAL.
  13
  14 So, lets move this check to .config_init_once as at that point individual
  15 PHY interface modes should be populated.
  16
  17 Fixes: d1cb613efbd3 ("net: phy: qcom: add support for QCA807x PHY Family")
  18 Signed-off-by: Robert Marko <robimarko@gmail.com>
  19 Reviewed-by: Andrew Lunn <andrew@lunn.ch>
  20 Link: https://lore.kernel.org/r/20240212115043.1725918-1-robimarko@gmail.com
  21 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
  22 ---
  23  drivers/net/phy/qcom/qca807x.c | 10 +++++-----
  24  1 file changed, 5 insertions(+), 5 deletions(-)
  25
  26 --- a/drivers/net/phy/qcom/qca807x.c
  27 +++ b/drivers/net/phy/qcom/qca807x.c
  28 @@ -562,6 +562,11 @@ static int qca807x_phy_package_config_in
  29         struct qca807x_shared_priv *priv = shared->priv;
  30         int val, ret;
  31
  32 +       /* Make sure PHY follow PHY package mode if enforced */
  33 +       if (priv->package_mode != PHY_INTERFACE_MODE_NA &&
  34 +           phydev->interface != priv->package_mode)
  35 +               return -EINVAL;
  36 +
  37         phy_lock_mdio_bus(phydev);
  38
  39         /* Set correct PHY package mode */
  40 @@ -718,11 +723,6 @@ static int qca807x_probe(struct phy_devi
  41         shared = phydev->shared;
  42         shared_priv = shared->priv;
  43
  44 -       /* Make sure PHY follow PHY package mode if enforced */
  45 -       if (shared_priv->package_mode != PHY_INTERFACE_MODE_NA &&
  46 -           phydev->interface != shared_priv->package_mode)
  47 -               return -EINVAL;
  48 -
  49         priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
  50         if (!priv)
  51                 return -ENOMEM;