target/linux/generic/backport-5.10/785-v5.14-23-net-dsa-qca8k-pass-switch_revision-info-to-phy-dev_f.patch

   1 From a46aec02bc06ac2c33f326339e4ef88c735dc30d Mon Sep 17 00:00:00 2001
   2 From: Ansuel Smith <ansuelsmth@gmail.com>
   3 Date: Fri, 14 May 2021 23:00:13 +0200
   4 Subject: [PATCH] net: dsa: qca8k: pass switch_revision info to phy dev_flags
   5
   6 Define get_phy_flags to pass switch_Revision needed to tweak the
   7 internal PHY with debug values based on the revision.
   8
   9 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
  10 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
  11 Signed-off-by: David S. Miller <davem@davemloft.net>
  12 ---
  13  drivers/net/dsa/qca8k.c | 17 +++++++++++++++++
  14  1 file changed, 17 insertions(+)
  15
  16 --- a/drivers/net/dsa/qca8k.c
  17 +++ b/drivers/net/dsa/qca8k.c
  18 @@ -1740,6 +1740,22 @@ qca8k_port_vlan_del(struct dsa_switch *d
  19         return ret;
  20  }
  21
  22 +static u32 qca8k_get_phy_flags(struct dsa_switch *ds, int port)
  23 +{
  24 +       struct qca8k_priv *priv = ds->priv;
  25 +
  26 +       /* Communicate to the phy internal driver the switch revision.
  27 +        * Based on the switch revision different values needs to be
  28 +        * set to the dbg and mmd reg on the phy.
  29 +        * The first 2 bit are used to communicate the switch revision
  30 +        * to the phy driver.
  31 +        */
  32 +       if (port > 0 && port < 6)
  33 +               return priv->switch_revision;
  34 +
  35 +       return 0;
  36 +}
  37 +
  38  static enum dsa_tag_protocol
  39  qca8k_get_tag_protocol(struct dsa_switch *ds, int port,
  40                        enum dsa_tag_protocol mp)
  41 @@ -1774,6 +1790,7 @@ static const struct dsa_switch_ops qca8k
  42         .phylink_mac_config     = qca8k_phylink_mac_config,
  43         .phylink_mac_link_down  = qca8k_phylink_mac_link_down,
  44         .phylink_mac_link_up    = qca8k_phylink_mac_link_up,
  45 +       .get_phy_flags          = qca8k_get_phy_flags,
  46  };
  47
  48  static int qca8k_read_switch_id(struct qca8k_priv *priv)