Hi Jae Hyun, On Wed, Mar 27, 2019 at 02:00:45PM -0700, Jae Hyun Yoo wrote: > An amplifier regulator property should be an option according to > the binding document but currently it's not so this commit makes > the amplifier regulator property as an option actually for cases > that don't have the actual amplifier H/W. If regulator is not described in DTS you will get a dummy one (i.e. devm_regulator_get() will not fail) and everything is good. This patch is not needed. Thanks. -- Dmitry