microchip: lan865x: add ndo_eth_ioctl handler to enable PHY ioctl support

Introduce support for standard MII ioctl operations in the LAN865x
Ethernet driver by implementing the .ndo_eth_ioctl callback. This allows
PHY-related ioctl commands to be handled via phy_do_ioctl_running() and
enables support for ethtool and other user-space tools that rely on ioctl
interface to perform PHY register access using commands like SIOCGMIIREG
and SIOCSMIIREG.

This feature enables improved diagnostics and PHY configuration
capabilities from userspace.

Signed-off-by: Parthiban Veerasooran <parthiban.veerasooran@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250828114549.46116-1-parthiban.veerasooran@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/microchip/lan865x/lan865x.c b/drivers/net/ethernet/microchip/lan865x/lan865x.c
index 84c41f19356126b4a180594134a70bcfcf4b391b..f7cb685b1562982a07e059d69f7df861315c0425 100644 (file)
--- a/drivers/net/ethernet/microchip/lan865x/lan865x.c
+++ b/drivers/net/ethernet/microchip/lan865x/lan865x.c
@@ -326,6 +326,7 @@ static const struct net_device_ops lan865x_netdev_ops = {
        .ndo_start_xmit         = lan865x_send_packet,
        .ndo_set_rx_mode        = lan865x_set_multicast_list,
        .ndo_set_mac_address    = lan865x_set_mac_address,
+       .ndo_eth_ioctl          = phy_do_ioctl_running,
 };
 
 static int lan865x_probe(struct spi_device *spi)