Allow configuration of the rise time for MICBIAS via platform data, the
delay required depends on things like the external component selection.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Acked-by: NMyungJoo Ham <myungjoo.ham@samsung.com>