[PATCH net-next v4 04/16] net: phy: microchip_t1s: Use generic APIs for C45 read and write

[Selvamani Rajagopal via B4 Relay <devnull+Selvamani.Rajagopal.onsemi.com@kernel.org>]

From: Selvamani Rajagopal <Selvamani.Rajagopal@onsemi.com>

Replace vendor implementation with generic API to read and write
PHY registers using C45 bus protocol.

Signed-off-by: Selvamani Rajagopal <Selvamani.Rajagopal@onsemi.com>
---
 drivers/net/phy/microchip_t1s.c | 32 ++------------------------------
 1 file changed, 2 insertions(+), 30 deletions(-)

diff --git a/drivers/net/phy/microchip_t1s.c b/drivers/net/phy/microchip_t1s.c
index e601d56b2507..0c4dc70641d8 100644
--- a/drivers/net/phy/microchip_t1s.c
+++ b/drivers/net/phy/microchip_t1s.c
@@ -506,34 +506,6 @@ static int lan86xx_read_status(struct phy_device *phydev)
 	return 0;
 }
 
-/* OPEN Alliance 10BASE-T1x compliance MAC-PHYs will have both C22 and
- * C45 registers space. If the PHY is discovered via C22 bus protocol it assumes
- * it uses C22 protocol and always uses C22 registers indirect access to access
- * C45 registers. This is because, we don't have a clean separation between
- * C22/C45 register space and C22/C45 MDIO bus protocols. Resulting, PHY C45
- * registers direct access can't be used which can save multiple SPI bus access.
- * To support this feature, set .read_mmd/.write_mmd in the PHY driver to call
- * .read_c45/.write_c45 in the OPEN Alliance framework
- * drivers/net/ethernet/oa_tc6.c
- */
-static int lan865x_phy_read_mmd(struct phy_device *phydev, int devnum,
-				u16 regnum)
-{
-	struct mii_bus *bus = phydev->mdio.bus;
-	int addr = phydev->mdio.addr;
-
-	return __mdiobus_c45_read(bus, addr, devnum, regnum);
-}
-
-static int lan865x_phy_write_mmd(struct phy_device *phydev, int devnum,
-				 u16 regnum, u16 val)
-{
-	struct mii_bus *bus = phydev->mdio.bus;
-	int addr = phydev->mdio.addr;
-
-	return __mdiobus_c45_write(bus, addr, devnum, regnum, val);
-}
-
 static struct phy_driver microchip_t1s_driver[] = {
 	{
 		PHY_ID_MATCH_EXACT(PHY_ID_LAN867X_REVB1),
@@ -584,8 +556,8 @@ static struct phy_driver microchip_t1s_driver[] = {
 		.features           = PHY_BASIC_T1S_P2MP_FEATURES,
 		.config_init        = lan865x_revb_config_init,
 		.read_status        = lan86xx_read_status,
-		.read_mmd           = lan865x_phy_read_mmd,
-		.write_mmd          = lan865x_phy_write_mmd,
+		.read_mmd           = genphy_phy_read_mmd,
+		.write_mmd          = genphy_phy_write_mmd,
 		.get_plca_cfg	    = genphy_c45_plca_get_cfg,
 		.set_plca_cfg	    = lan86xx_plca_set_cfg,
 		.get_plca_status    = genphy_c45_plca_get_status,

-- 
2.43.0