To ramp-up/down internal LDO of i.mx6,
Digital LDO(ARM, SOC, PU) can detect by control voltage raum-up time.
So it can calculate a wait time in function set_ldo_voltage() of uboot-imx/tree/arch/arm/mach-imx/mx6/soc.c
But for analog LDO(1p1, 3p0, 2p5) it have no method to control ramp-up/down time.
I think that status bits, OK_VDDxxx and BO_VDDxxx, in each regulator register(PMU_REG_xxx)
can use to detect ramp-up/down timing.
Can it use to detect ramp-up/down for each analog LDO?
If so, I hope some sample code to control voltage of analog LDO.