The ageing time is in 5s step, ranging from 1 step to 0xffff steps, so
add appropriate attributes.

Signed-off-by: David Yang <mmyangfl@gmail.com>
---
 drivers/net/dsa/yt921x.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/dsa/yt921x.c b/drivers/net/dsa/yt921x.c
index ebfd34f72314..d5fb17d2b6e0 100644
--- a/drivers/net/dsa/yt921x.c
+++ b/drivers/net/dsa/yt921x.c
@@ -2855,6 +2855,8 @@ static int yt921x_mdio_probe(struct mdio_device *mdiodev)
 	ds->assisted_learning_on_cpu_port = true;
 	ds->priv = priv;
 	ds->ops = &yt921x_dsa_switch_ops;
+	ds->ageing_time_min = 1 * 5000;
+	ds->ageing_time_max = U16_MAX * 5000;
 	ds->phylink_mac_ops = &yt921x_phylink_mac_ops;
 	ds->num_ports = YT921X_PORT_NUM;
 
-- 
2.51.0

On Sat, Nov 29, 2025 at 12:21:34PM +0800, David Yang wrote:
> The ageing time is in 5s step, ranging from 1 step to 0xffff steps, so
> add appropriate attributes.
> 
> Signed-off-by: David Yang <mmyangfl@gmail.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew