Preset a Caldera Forms field with the value of a Pods field using caldera_forms_render_get_field filter See: https://calderaforms.com/doc/caldera_forms_render_get_field/

caldera_forms_render_get_field-pods.php

<?php
/**
* Preset a Caldera Forms field with the value of a Pods field
*/
add_filter( 'caldera_forms_render_get_field', function( $field )  {
  //Change your field ID here
  if( 'fld123456' == $field[ 'ID' ] ){
      //change pods() arguments, see http://pods.io/docs/code/pods/
      $value = pods( 'pod-name', 42 );
		  $field[ 'config' ][ 'default' ] = $pods->value( 'field_name' );
  }
  return $field;
});