Re: [PATCH RFC 5/5] dt-bindings: gnss: add lna-supply property

From: Andreas Kemnade
Date: Sun Dec 09 2018 - 14:11:49 EST


On Wed, 5 Dec 2018 16:09:39 +0100
Johan Hovold <johan@xxxxxxxxxx> wrote:

> On Sun, Nov 18, 2018 at 10:58:01PM +0100, Andreas Kemnade wrote:
> > Add lna-supply property.
> >
> > Signed-off-by: Andreas Kemnade <andreas@xxxxxxxxxxxx>
> > ---
> > Documentation/devicetree/bindings/gnss/sirfstar.txt | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/Documentation/devicetree/bindings/gnss/sirfstar.txt b/Documentation/devicetree/bindings/gnss/sirfstar.txt
> > index 1be7597ae884..9614774d14bc 100644
> > --- a/Documentation/devicetree/bindings/gnss/sirfstar.txt
> > +++ b/Documentation/devicetree/bindings/gnss/sirfstar.txt
> > @@ -30,6 +30,7 @@ Optional properties:
> > - sirf,wakeup-gpios : GPIO used to determine device power state
> > (pin name: RFPWRUP, WAKEUP)
> > - timepulse-gpios : Time pulse GPIO (pin name: 1PPS, TM)
> > +- lna-supply : Separate supply for a LNA
>
> "Supply for external LNA"?
>
"External" might be misleading:
- not part of the gps chip itself: yes
- but might also be inside of the device.

In case of the GTA04 this includes power supply for an antenna switch
(operates by plug detection) + internal or external antenna.

Regards,
Andreas

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