Enable ramp down/up step to be configured based on
platform.
Signed-off-by: NAxel Castaneda Gonzalez <x0055901@ti.com>
Signed-off-by: NMisael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>