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net: stmmac: Handle disabled MDIO busses from devicetree
Many hardware configurations have the MDIO bus disabled, and are instead using some other MDIO bus to talk to the MAC's phy. of_mdiobus_register() returns -ENODEV in this case. Let's handle it gracefully instead of failing to probe the MAC. Fixes: 47dd7a5 ("net: add support for STMicroelectronics Ethernet controllers.") Signed-off-by: Andrew Halaney <[email protected]> Reviewed-by: Serge Semin <[email protected]> Link: https://lore.kernel.org/r/20231212-b4-stmmac-handle-mdio-enodev-v2-1-600171acf79f@redhat.com Signed-off-by: Paolo Abeni <[email protected]>
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