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Kernel only has to provide the AML binding for clock resources and the clock management will be done from AML.
Option 3: ClockInput resources with SCMI clock provider
The above two options used the AML-based approach to configure the clock to avoid adding overhead to the kernel. However, this option requires SCMI driver support at the kernel side and uses that to provide clock control.
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ACPICA
ClockInput resource is not yet supported by Intel ACPICA. You can find a work-in-progress change below
https://github.com/nsait-linaroacpica/acpica/commitpull/2df31c14576b4f16dc2ee86a0ff23570bd7d5674838