target/linux/generic/backport-5.15/769-v5.19-06-net-dsa-qca8k-unify-bus-id-naming-with-legacy-and-OF.patch

   1 From 8d1af50842bf2774f4edc57054206e909117469b Mon Sep 17 00:00:00 2001
   2 From: Ansuel Smith <ansuelsmth@gmail.com>
   3 Date: Sat, 16 Apr 2022 01:30:17 +0200
   4 Subject: [PATCH 6/6] net: dsa: qca8k: unify bus id naming with legacy and OF
   5  mdio bus
   6
   7 Add support for multiple switch with OF mdio bus declaration.
   8 Unify the bus id naming and use the same logic for both legacy and OF
   9 mdio bus.
  10
  11 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
  12 Signed-off-by: David S. Miller <davem@davemloft.net>
  13 ---
  14  drivers/net/dsa/qca8k.c | 5 ++---
  15  1 file changed, 2 insertions(+), 3 deletions(-)
  16
  17 --- a/drivers/net/dsa/qca8k.c
  18 +++ b/drivers/net/dsa/qca8k.c
  19 @@ -1323,6 +1323,8 @@ qca8k_mdio_register(struct qca8k_priv *p
  20                 return -ENOMEM;
  21
  22         bus->priv = (void *)priv;
  23 +       snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d.%d",
  24 +                ds->dst->index, ds->index);
  25         bus->parent = ds->dev;
  26         bus->phy_mask = ~ds->phys_mii_mask;
  27         ds->slave_mii_bus = bus;
  28 @@ -1330,7 +1332,6 @@ qca8k_mdio_register(struct qca8k_priv *p
  29         /* Check if the devicetree declare the port:phy mapping */
  30         mdio = of_get_child_by_name(priv->dev->of_node, "mdio");
  31         if (of_device_is_available(mdio)) {
  32 -               snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d", ds->index);
  33                 bus->name = "qca8k slave mii";
  34                 bus->read = qca8k_internal_mdio_read;
  35                 bus->write = qca8k_internal_mdio_write;
  36 @@ -1340,8 +1341,6 @@ qca8k_mdio_register(struct qca8k_priv *p
  37         /* If a mapping can't be found the legacy mapping is used,
  38          * using the qca8k_port_to_phy function
  39          */
  40 -       snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d.%d",
  41 -                ds->dst->index, ds->index);
  42         bus->name = "qca8k-legacy slave mii";
  43         bus->read = qca8k_legacy_mdio_read;
  44         bus->write = qca8k_legacy_mdio_write;