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I've setup my DTB on ADRV9364Z7020 to allow switching of the reference clock to external ... what should I do now to toggle the gpio that controls it?

Category: Software
Product Number: ADRV9364Z7020 SoM
Software Version: Xilinx 2019.1

So I've now got this in the device tree ....


... how can I read and write the value of the above enable-gpio ?