[U-Boot] [RFT 6/8] power: regulator: s2mps11: Add enable delay

[Krzysztof Kozlowski]

On Mon, 11 Feb 2019 at 08:11, Lukasz Majewski <lukma at denx.de> wrote:
>
> Hi Krzysztof,
>
> > According to datasheet, the output on LDO regulators will start
> > appearing after 10-15 us.
> >
> > Signed-off-by: Krzysztof Kozlowski <krzk at kernel.org>
> > ---
> >  drivers/power/regulator/s2mps11_regulator.c | 9 ++++++++-
> >  1 file changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/power/regulator/s2mps11_regulator.c
> > b/drivers/power/regulator/s2mps11_regulator.c index
> > 723d27f67c9a..1f1581852ee2 100644 ---
> > a/drivers/power/regulator/s2mps11_regulator.c +++
> > b/drivers/power/regulator/s2mps11_regulator.c @@ -551,7 +551,14 @@
> > static int ldo_get_enable(struct udevice *dev)
> >  static int ldo_set_enable(struct udevice *dev, bool enable)
> >  {
> > -     return s2mps11_ldo_enable(dev, PMIC_OP_SET, &enable);
> > +     int ret;
> > +
> > +     ret = s2mps11_ldo_enable(dev, PMIC_OP_SET, &enable);
> > +
> > +     /* Wait the "enable delay" for voltage to start to rise */
> > +     udelay(15);
>
> I assume, that this value is the same as in the Linux driver?

No, Linux drivers does not do it. It should... but we never
implemented it there.

Best regards,
Krzysztof