uart0_pins: uart0 {
  uart0_grp0 {
   pinmux = <(((41) << 4) | (1))>;
   output-enable;
   slew-rate = <6>;
  };
  uart0_grp1 {
   pinmux = <(((42) << 4) | (0))>;
   input-enable;
   slew-rate = <6>;
  };
  uart0_pins_grp2 {
   pinmux = <(((512) << 4) | (2))>;
  };
 };
};
&uart0 { <<< This is the line that throws a syntax error
 pinctrl-0 = <&uart0_pins>;
 pinctrl-names = "default";
 status = "okay";
};