netdev - [PATCH net-next 08/15] net: phy: realtek: use generic clause 45 feature reading for rtl822x PHYs

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Date: Wed, 20 Dec 2023 16:55:11 +0100
From: Marek Behún <kabel@...nel.org>
To: netdev@...r.kernel.org,
	Andrew Lunn <andrew@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Cc: Russell King <rmk+kernel@...linux.org.uk>,
	Alexander Couzens <lynxis@...0.eu>,
	Daniel Golle <daniel@...rotopia.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Willy Liu <willy.liu@...ltek.com>,
	Ioana Ciornei <ioana.ciornei@....com>,
	Marek Mojík <marek.mojik@....cz>,
	Maximilián Maliar <maximilian.maliar@....cz>,
	Marek Behún <kabel@...nel.org>
Subject: [PATCH net-next 08/15] net: phy: realtek: use generic clause 45 feature reading for rtl822x PHYs

Now that rtl822x PHYs .read_mmd() and .write_mmd() methods support
accessing all MMD registers, drop the .get_features() method so that
phy_probe() will use the generic genphy_c45_pma_read_abilities(),
which works properly on these trasceivers.

Signed-off-by: Marek Behún <kabel@...nel.org>
---
 drivers/net/phy/realtek.c | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index c621ce9378c5..66515981d2aa 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -648,24 +648,6 @@ static int rtl822x_probe(struct phy_device *phydev)
 	return 0;
 }
 
-static int rtl822x_get_features(struct phy_device *phydev)
-{
-	int val;
-
-	val = phy_read_paged(phydev, 0xa61, 0x13);
-	if (val < 0)
-		return val;
-
-	linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
-			 phydev->supported, val & MDIO_PMA_SPEED_2_5G);
-	linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
-			 phydev->supported, val & MDIO_PMA_SPEED_5G);
-	linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
-			 phydev->supported, val & MDIO_SPEED_10G);
-
-	return genphy_read_abilities(phydev);
-}
-
 static int rtl822x_config_aneg(struct phy_device *phydev)
 {
 	int ret = 0;
@@ -974,7 +956,6 @@ static struct phy_driver realtek_drvs[] = {
 		.name		= "RTL8226 2.5Gbps PHY",
 		.match_phy_device = rtl8226_match_phy_device,
 		.probe		= rtl822x_probe,
-		.get_features	= rtl822x_get_features,
 		.config_aneg	= rtl822x_config_aneg,
 		.read_status	= rtl822x_read_status,
 		.suspend	= genphy_suspend,
@@ -987,7 +968,6 @@ static struct phy_driver realtek_drvs[] = {
 		PHY_ID_MATCH_EXACT(0x001cc840),
 		.name		= "RTL8226B_RTL8221B 2.5Gbps PHY",
 		.probe		= rtl822x_probe,
-		.get_features	= rtl822x_get_features,
 		.config_aneg	= rtl822x_config_aneg,
 		.read_status	= rtl822x_read_status,
 		.suspend	= genphy_suspend,
@@ -1000,7 +980,6 @@ static struct phy_driver realtek_drvs[] = {
 		PHY_ID_MATCH_EXACT(0x001cc838),
 		.name           = "RTL8226-CG 2.5Gbps PHY",
 		.probe		= rtl822x_probe,
-		.get_features   = rtl822x_get_features,
 		.config_aneg    = rtl822x_config_aneg,
 		.read_status    = rtl822x_read_status,
 		.suspend        = genphy_suspend,
@@ -1013,7 +992,6 @@ static struct phy_driver realtek_drvs[] = {
 		PHY_ID_MATCH_EXACT(0x001cc848),
 		.name           = "RTL8226B-CG_RTL8221B-CG 2.5Gbps PHY",
 		.probe		= rtl822x_probe,
-		.get_features   = rtl822x_get_features,
 		.config_aneg    = rtl822x_config_aneg,
 		.read_status    = rtl822x_read_status,
 		.suspend        = genphy_suspend,
@@ -1026,7 +1004,6 @@ static struct phy_driver realtek_drvs[] = {
 		PHY_ID_MATCH_EXACT(0x001cc849),
 		.name           = "RTL8221B-VB-CG 2.5Gbps PHY",
 		.probe		= rtl822x_probe,
-		.get_features   = rtl822x_get_features,
 		.config_aneg    = rtl822x_config_aneg,
 		.read_status    = rtl822x_read_status,
 		.suspend        = genphy_suspend,
@@ -1039,7 +1016,6 @@ static struct phy_driver realtek_drvs[] = {
 		PHY_ID_MATCH_EXACT(0x001cc84a),
 		.name           = "RTL8221B-VM-CG 2.5Gbps PHY",
 		.probe		= rtl822x_probe,
-		.get_features   = rtl822x_get_features,
 		.config_aneg    = rtl822x_config_aneg,
 		.read_status    = rtl822x_read_status,
 		.suspend        = genphy_suspend,
-- 
2.41.0