and how is it supposed to be used?
In reference to this thread…
I’m trying to figure out exactly what the nvpps driver is supposed to do. I have the device tree set to route AON_GPIO DD-00 (40-pin header pin 27) to the driver and it creates /dev/nvpps0 but I’m not sure how to use it in relation to pps-gpio, ntpd and ptp4l.
From looking at the code, it looks like it’s supposed to synchronize the phc clock to the pps input but I’m not seeing how or where it’s used.
I do have AON_GPIO CC-07 (40-pin header pin 28) to pps-gpio which does work fine.