Remove the custom code to do I/O and replace it with standard regmap calls.
Reviewed-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NTero Kristo <t-kristo@ti.com>
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>