netdev - [PATCH net-next v5 04/11] net: phy: nxp-c45-tja11xx: use get

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Date: Mon, 31 Jul 2023 12:16:12 +0300
From: "Radu Pirea (NXP OSS)" <radu-nicolae.pirea@....nxp.com>
To: andrew@...n.ch,
	hkallweit1@...il.com,
	linux@...linux.org.uk,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	richardcochran@...il.com
Cc: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Radu Pirea (NXP OSS)" <radu-nicolae.pirea@....nxp.com>
Subject: [PATCH net-next v5 04/11] net: phy: nxp-c45-tja11xx: use get_features

PHY_BASIC_T1_FEATURES are not the right features supported by TJA1103
anymore.
For example ethtool reports:
	[root@...rm ~]# ethtool end0
	Settings for end0:
	        Supported ports: [ TP ]
	        Supported link modes:   100baseT1/Full
	                                10baseT1L/Full

10baseT1L/Full is not supported by TJA1103 and supported ports list is
not completed. The PHY also have a MII port.

genphy_c45_pma_read_abilities implementation can detect the PHY features
and they look like this.
[root@...rm ~]# ethtool end0
Settings for end0:
        Supported ports: [ TP    MII ]
        Supported link modes:   100baseT1/Full
        Supported pause frame use: Symmetric
        Supports auto-negotiation: No
        Supported FEC modes: Not reported
        Advertised link modes:  100baseT1/Full
        Advertised pause frame use: Symmetric
        Advertised auto-negotiation: No
        Advertised FEC modes: Not reported
        Speed: 100Mb/s
        Duplex: Full
        Auto-negotiation: off
        master-slave cfg: forced master
        master-slave status: master
        Port: Twisted Pair
        PHYAD: 1
        Transceiver: external
        MDI-X: Unknown
        Supports Wake-on: g
        Wake-on: d
        Link detected: yes
        SQI: 7/7

Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@....nxp.com>
Reviewed-by: Andrew Lunn <andrew@...n.ch>
---
 drivers/net/phy/nxp-c45-tja11xx.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/nxp-c45-tja11xx.c b/drivers/net/phy/nxp-c45-tja11xx.c
index d5981985b320..573083f0550f 100644
--- a/drivers/net/phy/nxp-c45-tja11xx.c
+++ b/drivers/net/phy/nxp-c45-tja11xx.c
@@ -1353,6 +1353,14 @@ static int nxp_c45_config_init(struct phy_device *phydev)
 	return nxp_c45_start_op(phydev);
 }
 
+static int nxp_c45_get_features(struct phy_device *phydev)
+{
+	linkmode_set_bit(ETHTOOL_LINK_MODE_TP_BIT, phydev->supported);
+	linkmode_set_bit(ETHTOOL_LINK_MODE_MII_BIT, phydev->supported);
+
+	return genphy_c45_pma_read_abilities(phydev);
+}
+
 static int nxp_c45_probe(struct phy_device *phydev)
 {
 	struct nxp_c45_phy *priv;
@@ -1507,7 +1515,7 @@ static struct phy_driver nxp_c45_driver[] = {
 	{
 		PHY_ID_MATCH_MODEL(PHY_ID_TJA_1103),
 		.name			= "NXP C45 TJA1103",
-		.features		= PHY_BASIC_T1_FEATURES,
+		.get_features		= nxp_c45_get_features,
 		.driver_data		= &tja1103_phy_data,
 		.probe			= nxp_c45_probe,
 		.soft_reset		= nxp_c45_soft_reset,
-- 
2.34.1