DRV10983-Q1: What all inputs are needed for speed control of a 3-phase BLDC motor?

Hi,

        I'm trying to find a suitable motor driver to drive 3-phase BLDC motor with hall-effect sensor(U,V,W) whose peak current is 2.7 amps using as minimum PWMs/ GPIOs as possible. I came across DRV 10983-Q1 wherein the datasheet says the motor can be controlled by either one PWM or i2C or Analog output(correct me if I'm wrong here). My BLDC motor has Hall-effect sensor feedback(U,V,W) which I can give it to PRU of my AM-437 board and I would like to control the speed of the BLDC motor shaft. My query is, is one PWM enough to control the speed of the motor or does the i2C needs to happen simultaneously to control the speed of the motor. Please clarify on the control interface required for speed control of the BLDC motor .

           If one PWM signal is sufficient from my AM-437, will this motor driver be as precise as any other motor drivers like DRV 8332.In DRV 8332 We send 3 PWM signals to control the current flowing through the three coils of the 3-phase BLDC motor right? So intuitively we have lesser control with DRV-10983-Q1, is this true? If yes, by what factor will there be an error?