net: add MDIO_MUX DM class
Adds a class for MDIO MUXes, which control access to a series of downstream child MDIOs. MDIO MUX drivers are required to implement a select function used to switch between child buses. MUX children are registered as MDIO buses and they can be used just like regular MDIOs. Signed-off-by: NAlex Marginean <alexm.osslist@gmail.com> Reviewed-by: NBin Meng <bmeng.cn@gmail.com> Acked-by: NJoe Hershberger <joe.hershberger@ni.com>
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net/mdio-mux-uclass.c
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