[PATCH net-next v1] lan78xx: lan7801 MAC support with lan8841

Rengarajan S
2024-06-11T09:45:04Z

Add lan7801 MAC only support with lan8841. The PHY fixup is registered
for lan8841 and the initializations are done using lan8835_fixup since
the register configs are similar for both lann8841 and lan8835. The PHY
is unregistered at two instances, one during init and other during
disconnect.

Signed-off-by: Rengarajan S <rengarajan.s@microchip.com>
---
drivers/net/usb/lan78xx.c | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 5add4145d9fc..ab6f0c42b4d9 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -479,6 +479,7 @@ struct lan78xx_net {

/* define external phy id */
#define PHY_LAN8835 (0x0007C130)
+#define PHY_LAN8841 (0x00221650)
#define PHY_KSZ9031RNX (0x00221620)

/* use ethtool to change the level for any given device */
@@ -2327,6 +2328,13 @@ static struct phy_device *lan7801_phy_init(struct lan78xx_net *dev)
netdev_err(dev->net, "Failed to register fixup for PHY_LAN8835\n");
return NULL;
}
+ /* external PHY fixup for LAN8841 */
+ ret = phy_register_fixup_for_uid(PHY_LAN8841, 0xfffffff0,
+ lan8835_fixup);
+ if (ret < 0) {
+ netdev_err(dev->net, "Failed to register fixup for PHY_LAN8841\n");
+ return NULL;
+ }
/* add more external PHY fixup here if needed */

phydev->is_internal = false;
@@ -2390,6 +2398,8 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
0xfffffff0);
phy_unregister_fixup_for_uid(PHY_LAN8835,
0xfffffff0);
+ phy_unregister_fixup_for_uid(PHY_LAN8841,
+ 0xfffffff0);
}
}
return -EIO;
@@ -4239,6 +4249,7 @@ static void lan78xx_disconnect(struct usb_interface *intf)

phy_unregister_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0);
phy_unregister_fixup_for_uid(PHY_LAN8835, 0xfffffff0);
+ phy_unregister_fixup_for_uid(PHY_LAN8841, 0xfffffff0);

phy_disconnect(net->phydev);

--
2.25.1