On Wed, Dec 31, 2025 at 01:09:49PM +0100, Konrad Dybcio wrote:
> On 12/31/25 12:35 AM, Dmitry Baryshkov wrote:
> > Specify power supply for the second chain / antenna output of the
> > onboard WiFi chip.
> >
> > Fixes: 3f72e2d3e682 ("arm64: dts: qcom: Add Dragonboard 845c")
> > Signed-off-by: Dmitry Baryshkov <[email protected]>
> > ---
>
> I don't have schematics nearby, but jfyi downstream doesn't do that
I checked in the schematics, it is L23A.
>
> > arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 7 +++++++
> > 1 file changed, 7 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
> > b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
> > index ad283a79bcdb..5118b776a9bb 100644
> > --- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
> > +++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
> > @@ -379,6 +379,12 @@ vreg_l21a_2p95: ldo21 {
> > regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> > };
> >
> > + vreg_l23a_3p3: ldo23 {
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3312000>;
>
> Do we benefit from the 0.012V spread?
>
> (i.e. is there anything else on this rail?)
I must admt jere, I just copied defition of the ch0 regulator. I think,
they should be the same.
>
> Konrad
--
With best wishes
Dmitry
