of_unittest_apply_overlay_check
ret = of_unittest_apply_overlay_check(0, 0, 0, 1, PDEV_OVERLAY);
ret = of_unittest_apply_overlay_check(1, 1, 1, 0, PDEV_OVERLAY);
ret = of_unittest_apply_overlay_check(2, 2, 0, 1, PDEV_OVERLAY);
ret = of_unittest_apply_overlay_check(3, 3, 1, 0, PDEV_OVERLAY);
if (of_unittest_apply_overlay_check(4, 4, 0, 1, PDEV_OVERLAY))
ret = of_unittest_apply_overlay_check(10, 10, 0, 1, PDEV_OVERLAY);
ret = of_unittest_apply_overlay_check(12, 12, 0, 1, I2C_OVERLAY);
ret = of_unittest_apply_overlay_check(13, 13, 1, 0, I2C_OVERLAY);
ret = of_unittest_apply_overlay_check(15, 15, 0, 1, I2C_OVERLAY);