pinmux for touchscreen

There is one pinmux configuration of touchscreen in  linux-3.2.0-psp04.06.00.08.sdk,

static void tsc_init(int evm_id, int profile)
{
 int err;

 setup_pin_mux(tsc_pin_mux);
 err = am33xx_register_tsc(&am335x_touchscreen_data);
 if (err)
  pr_err("failed to register touchscreen device\n");
}

but  I can't  find the pinux configuration in linux-3.2.0-psp04.06.00.09.sdk,

static void mfd_tscadc_init(int evm_id, int profile)
{
 int err;

 err = am33xx_register_mfd_tscadc(&tscadc);
 if (err)
  pr_err("failed to register touchscreen device\n");
}