net: phy: microchip_t1s:: add cable diagnostic support for LAN867x Rev.D0

ParthibanI17164 · NipaLocal · commit ffb0beae3bc0 · 2025-11-05T10:00:58.000-08:00
Enable Open Alliance TC14 (OATC14) 10Base-T1S cable diagnostic feature
for Microchip LAN867x Rev.D0 PHY by implementing `cable_test_start` and
`cable_test_get_status` using the generic C45 functions. This allows the
`ethtool` utility to perform cable diagnostic tests directly on the PHY,
improving network troubleshooting and maintenance.

Signed-off-by: Parthiban Veerasooran &lt;parthiban.veerasooran@microchip.com&gt;
Signed-off-by: NipaLocal &lt;nipa@local&gt;
diff --git a/drivers/net/phy/microchip_t1s.c b/drivers/net/phy/microchip_t1s.c
@@ -573,6 +573,8 @@ static struct phy_driver microchip_t1s_driver[] = {
 		.get_plca_cfg	    = genphy_c45_plca_get_cfg,
 		.set_plca_cfg	    = lan86xx_plca_set_cfg,
 		.get_plca_status    = genphy_c45_plca_get_status,
+		.cable_test_start   = genphy_c45_oatc14_cable_test_start,
+		.cable_test_get_status = genphy_c45_oatc14_cable_test_get_status,
 	},
 	{
 		PHY_ID_MATCH_EXACT(PHY_ID_LAN865X_REVB),

Original file line number	Diff line number	Diff line change
`@@ -573,6 +573,8 @@ static struct phy_driver microchip_t1s_driver[] = {`
`573`	`573`	`.get_plca_cfg = genphy_c45_plca_get_cfg,`
`574`	`574`	`.set_plca_cfg = lan86xx_plca_set_cfg,`
`575`	`575`	`.get_plca_status = genphy_c45_plca_get_status,`
	`576`	`+ .cable_test_start = genphy_c45_oatc14_cable_test_start,`
	`577`	`+ .cable_test_get_status = genphy_c45_oatc14_cable_test_get_status,`
`576`	`578`	`},`
`577`	`579`	`{`
`578`	`580`	`PHY_ID_MATCH_EXACT(PHY_ID_LAN865X_REVB),`