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Some of these limits are universal, but some depend on >whether the SoC is operating in nominal or in overdrive mode. > >The imx8mp.dtsi currently assumes overdrive mode and configures some >clocks in accordance with this. Boards wishing to make use of nominal >mode will need to override some of the clock rates manually. > >As operating the clocks outside of their allowed range can lead to >difficult to debug issues, it makes sense to register the maximum rates >allowed in the driver, so the CCF can take them into account. > >Signed-off-by: Ahmad Fatoum Reviewed-by: Peng Fan