Print a hint when the user has a setup where CONFIG_REGULATOR is really
needed to make the driver work.
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Tested-by: NDong Aisheng <b29396@freescale.com>
Tested-by: NShawn Guo <shawn.guo@freescale.com>
Acked-by: NLiam Girdwood <lrg@ti.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>