Fix initialization of `disp->last_activity_time`
if we use custom memory allocation, 'last_activity_time' must be initialized with zero value
@@ -127,6 +127,7 @@ lv_disp_t * lv_disp_drv_register(lv_disp_drv_t * driver)
memset(&disp->inv_area_joined, 0, sizeof(disp->inv_area_joined));
memset(&disp->inv_areas, 0, sizeof(disp->inv_areas));
lv_ll_init(&disp->scr_ll, sizeof(lv_obj_t));
+ disp->last_activity_time = 0;
if(disp_def == NULL) disp_def = disp;
