net: dsa: sja1105: implement .devlink_info_get

Return the driver name and ASIC ID so that generic user space
application are able to know they're looking at sja1105 devlink regions
when pretty-printing them.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/sja1105/sja1105.h

@@ -255,6 +255,9 @@ int sja1105_devlink_param_get(struct dsa_switch *ds, u32 id,
 			      struct devlink_param_gset_ctx *ctx);
 int sja1105_devlink_param_set(struct dsa_switch *ds, u32 id,
 			      struct devlink_param_gset_ctx *ctx);
+int sja1105_devlink_info_get(struct dsa_switch *ds,
+			     struct devlink_info_req *req,
+			     struct netlink_ext_ack *extack);
 
 /* From sja1105_spi.c */
 int sja1105_xfer_buf(const struct sja1105_private *priv,

drivers/net/dsa/sja1105/sja1105_devlink.c

@@ -214,6 +214,23 @@ static void sja1105_teardown_devlink_params(struct dsa_switch *ds)
 				      ARRAY_SIZE(sja1105_devlink_params));
 }
 
+int sja1105_devlink_info_get(struct dsa_switch *ds,
+			     struct devlink_info_req *req,
+			     struct netlink_ext_ack *extack)
+{
+	struct sja1105_private *priv = ds->priv;
+	int rc;
+
+	rc = devlink_info_driver_name_put(req, "sja1105");
+	if (rc)
+		return rc;
+
+	rc = devlink_info_version_fixed_put(req,
+					    DEVLINK_INFO_VERSION_GENERIC_ASIC_ID,
+					    priv->info->name);
+	return rc;
+}
+
 int sja1105_devlink_setup(struct dsa_switch *ds)
 {
 	int rc;

drivers/net/dsa/sja1105/sja1105_main.c

@@ -3316,6 +3316,7 @@ static const struct dsa_switch_ops sja1105_switch_ops = {
 	.crosschip_bridge_leave	= sja1105_crosschip_bridge_leave,
 	.devlink_param_get	= sja1105_devlink_param_get,
 	.devlink_param_set	= sja1105_devlink_param_set,
+	.devlink_info_get	= sja1105_devlink_info_get,
 };
 
 static const struct of_device_id sja1105_dt_ids[];