net: phy: nxp-c45-tja11xx: use phylib master/slave implementation

Remove the custom implementation of master/save setup and read status
and use genphy_c45_config_aneg and genphy_c45_read_status since phylib
has support for master/slave setup and master/slave status.

Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230731091619.77961-2-radu-nicolae.pirea@oss.nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/phy/nxp-c45-tja11xx.c

@@ -19,13 +19,6 @@
 
 #define PHY_ID_TJA_1103			0x001BB010
 
-#define PMAPMD_B100T1_PMAPMD_CTL	0x0834
-#define B100T1_PMAPMD_CONFIG_EN		BIT(15)
-#define B100T1_PMAPMD_MASTER		BIT(14)
-#define MASTER_MODE			(B100T1_PMAPMD_CONFIG_EN | \
-					 B100T1_PMAPMD_MASTER)
-#define SLAVE_MODE			(B100T1_PMAPMD_CONFIG_EN)
-
 #define VEND1_DEVICE_CONTROL		0x0040
 #define DEVICE_CONTROL_RESET		BIT(15)
 #define DEVICE_CONTROL_CONFIG_GLOBAL_EN	BIT(14)
@@ -988,72 +981,6 @@ static int nxp_c45_cable_test_get_status(struct phy_device *phydev,
 	return nxp_c45_start_op(phydev);
 }
 
-static int nxp_c45_setup_master_slave(struct phy_device *phydev)
-{
-	switch (phydev->master_slave_set) {
-	case MASTER_SLAVE_CFG_MASTER_FORCE:
-	case MASTER_SLAVE_CFG_MASTER_PREFERRED:
-		phy_write_mmd(phydev, MDIO_MMD_PMAPMD, PMAPMD_B100T1_PMAPMD_CTL,
-			      MASTER_MODE);
-		break;
-	case MASTER_SLAVE_CFG_SLAVE_PREFERRED:
-	case MASTER_SLAVE_CFG_SLAVE_FORCE:
-		phy_write_mmd(phydev, MDIO_MMD_PMAPMD, PMAPMD_B100T1_PMAPMD_CTL,
-			      SLAVE_MODE);
-		break;
-	case MASTER_SLAVE_CFG_UNKNOWN:
-	case MASTER_SLAVE_CFG_UNSUPPORTED:
-		return 0;
-	default:
-		phydev_warn(phydev, "Unsupported Master/Slave mode\n");
-		return -EOPNOTSUPP;
-	}
-
-	return 0;
-}
-
-static int nxp_c45_read_master_slave(struct phy_device *phydev)
-{
-	int reg;
-
-	phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
-	phydev->master_slave_state = MASTER_SLAVE_STATE_UNKNOWN;
-
-	reg = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, PMAPMD_B100T1_PMAPMD_CTL);
-	if (reg < 0)
-		return reg;
-
-	if (reg & B100T1_PMAPMD_MASTER) {
-		phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_FORCE;
-		phydev->master_slave_state = MASTER_SLAVE_STATE_MASTER;
-	} else {
-		phydev->master_slave_get = MASTER_SLAVE_CFG_SLAVE_FORCE;
-		phydev->master_slave_state = MASTER_SLAVE_STATE_SLAVE;
-	}
-
-	return 0;
-}
-
-static int nxp_c45_config_aneg(struct phy_device *phydev)
-{
-	return nxp_c45_setup_master_slave(phydev);
-}
-
-static int nxp_c45_read_status(struct phy_device *phydev)
-{
-	int ret;
-
-	ret = genphy_c45_read_status(phydev);
-	if (ret)
-		return ret;
-
-	ret = nxp_c45_read_master_slave(phydev);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
 static int nxp_c45_get_sqi(struct phy_device *phydev)
 {
 	int reg;
@@ -1355,11 +1282,11 @@ static struct phy_driver nxp_c45_driver[] = {
 		.features		= PHY_BASIC_T1_FEATURES,
 		.probe			= nxp_c45_probe,
 		.soft_reset		= nxp_c45_soft_reset,
-		.config_aneg		= nxp_c45_config_aneg,
+		.config_aneg		= genphy_c45_config_aneg,
 		.config_init		= nxp_c45_config_init,
 		.config_intr		= nxp_c45_config_intr,
 		.handle_interrupt	= nxp_c45_handle_interrupt,
-		.read_status		= nxp_c45_read_status,
+		.read_status		= genphy_c45_read_status,
 		.suspend		= genphy_c45_pma_suspend,
 		.resume			= genphy_c45_pma_resume,
 		.get_sset_count		= nxp_c45_get_sset_count,