[RFC PATCH net-next v4 27/28] net: dsa: qca8k: pass switch_revision info to phy dev_flags

Ansuel Smith
2021-05-08T00:31:54Z

Define get_phy_flags to pass switch_Revision needed to tweak the
internal PHY with debug values based on the revision.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
drivers/net/dsa/qca8k.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
index 3c3e05735b2d..8dafa581b7fa 100644
--- a/drivers/net/dsa/qca8k.c
+++ b/drivers/net/dsa/qca8k.c
@@ -1678,6 +1678,22 @@ qca8k_port_vlan_del(struct dsa_switch *ds, int port,
return ret;
}

+static u32 qca8k_get_phy_flags(struct dsa_switch *ds, int port)
+{
+ struct qca8k_priv *priv = ds->priv;
+
+ /* Communicate to the phy internal driver the switch revision.
+ * Based on the switch revision different values needs to be
+ * set to the dbg and mmd reg on the phy.
+ * The first 2 bit are used to communicate the switch revision
+ * to the phy driver.
+ */
+ if (port > 0 && port < 6)
+ return priv->switch_revision;
+
+ return 0;
+}
+
static enum dsa_tag_protocol
qca8k_get_tag_protocol(struct dsa_switch *ds, int port,
enum dsa_tag_protocol mp)
@@ -1741,6 +1757,7 @@ static const struct dsa_switch_ops qca8k_switch_ops = {
.phylink_mac_config = qca8k_phylink_mac_config,
.phylink_mac_link_down = qca8k_phylink_mac_link_down,
.phylink_mac_link_up = qca8k_phylink_mac_link_up,
+ .get_phy_flags = qca8k_get_phy_flags,
};

static int qca8k_read_switch_id(struct qca8k_priv *priv)
--
2.30.2