Revise .refresh input default value for target_frames_per_second to None

Author: kmatch98

shared-bindings/displayio/Display.c

@@ -215,7 +215,7 @@ STATIC mp_obj_t displayio_display_obj_show(mp_obj_t self_in, mp_obj_t group_in)
 }
 MP_DEFINE_CONST_FUN_OBJ_2(displayio_display_show_obj, displayio_display_obj_show);
 
-//|     def refresh(self, *, target_frames_per_second: int = 60, minimum_frames_per_second: int = 1) -> bool:
+//|     def refresh(self, *, target_frames_per_second: int = None, minimum_frames_per_second: int = 1) -> bool:
 //|         """When auto refresh is off, waits for the target frame rate and then refreshes the display,
 //|         returning True. If the call has taken too long since the last refresh call for the given
 //|         target frame rate, then the refresh returns False immediately without updating the screen to
@@ -231,13 +231,14 @@ MP_DEFINE_CONST_FUN_OBJ_2(displayio_display_show_obj, displayio_display_obj_show
 //|         the display immediately.
 //|
 //|         :param int target_frames_per_second: How many times a second `refresh` should be called and the screen updated.
+//|         Set to None for immediate refresh.
 //|         :param int minimum_frames_per_second: The minimum number of times the screen should be updated per second."""
 //|         ...
 //|
 STATIC mp_obj_t displayio_display_obj_refresh(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     enum { ARG_target_frames_per_second, ARG_minimum_frames_per_second };
     static const mp_arg_t allowed_args[] = {
-        { MP_QSTR_target_frames_per_second, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = MP_OBJ_NEW_SMALL_INT(60)} },
+        { MP_QSTR_target_frames_per_second, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = mp_const_none} },
         { MP_QSTR_minimum_frames_per_second, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
     };
 
@@ -252,8 +253,7 @@ STATIC mp_obj_t displayio_display_obj_refresh(size_t n_args, const mp_obj_t *pos
     }
 
     uint32_t target_ms_per_frame;
-    if ( (args[ARG_target_frames_per_second].u_obj == mp_const_none) || (n_args == 1) ) {
-        // if None or no arguments
+    if (args[ARG_target_frames_per_second].u_obj == mp_const_none) {
         target_ms_per_frame = 0xffffffff;
     }
     else {