What exactly is the nvpps driver supposed to do?

Robotics & Edge Computing Jetson Systems Jetson Xavier NX
15

@gtj
their patch configures pin 27 as INPUT
so assigning it to pps we would change the gpio the in the code below [ default pin7]

compatible = "pps-gpio";
				gpios = <&tegra_main_gpio 148 1>;

to which statement do we change the latter line to match 27 pin? that seems identified at jetsonhacks gpiotable as [ I2C0_SDAI2C Bus 1].
we can use it for pps input, right?
reference

  1. NVIDIA Jetson Xavier NX GPIO Header Pinout - JetsonHacks
  2. Time sensitive networking [TSN] on NX - #30 by gtj