Am Dienstag, 30. September 2014, 09:43:47 schrieb Doug Anderson:
> Chris,
>
> On Tue, Sep 30, 2014 at 2:44 AM, Chris Zhong <zyw at rock-chips.com> wrote:
> > The min_uv in DCDC1 & DCDC2 should be 712.5mv
> >
> > Signed-off-by: Chris Zhong <zyw at rock-chips.com>
> >
> > ---
> >
> > drivers/regulator/rk808-regulator.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/regulator/rk808-regulator.c
> > b/drivers/regulator/rk808-regulator.c index e305416..196a5c8 100644
> > --- a/drivers/regulator/rk808-regulator.c
> > +++ b/drivers/regulator/rk808-regulator.c
> > @@ -44,7 +44,7 @@ static const int rk808_buck_config_regs[] = {
> >
> > };
> >
> > static const struct regulator_linear_range rk808_buck_voltage_ranges[] =
> > {
> >
> > - REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500),
> > + REGULATOR_LINEAR_RANGE(712500, 0, 63, 12500),
> >
> > };
>
> I have no problem with this (and the current "dts" file I see don't go
> this low anyway), but it doesn't match the datasheet I have right now
> which says "0.700 V" is the min.
Then it would be problem.
The original statement above says, that a register value of "0" equals 700mV,
so changing this in this way would mean everything runs 12.5mV above the
target voltage.
And I can confirm, that the current datasheet lists 700mV as equallying
register value 0.
