On Tue, May 12, 2020 at 02:47:10PM -0700, Tony Lindgren wrote: > For motorola modem case, we may have a GNSS device on channel 4. > Let's add that to the binding and example. > > Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx> > --- > .../devicetree/bindings/serdev/serdev-ngsm.yaml | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/Documentation/devicetree/bindings/serdev/serdev-ngsm.yaml b/Documentation/devicetree/bindings/serdev/serdev-ngsm.yaml > --- a/Documentation/devicetree/bindings/serdev/serdev-ngsm.yaml > +++ b/Documentation/devicetree/bindings/serdev/serdev-ngsm.yaml > @@ -42,6 +42,10 @@ allOf: > description: Name of the USB PHY > const: usb > > + compatible: > + description: GNSS receiver > + const: motorola,mapphone-mdm6600-gnss I'm not sure how this isn't failing on the example because it is wrong. You're saying this compatible belongs at the same level as phys/phy-names, but that would be the parent which already has a compatible. You have to define a child node property (gnss@4) and have 'compatible' under it. At that point, this schema becomes very much Motorola specific. > + > required: > - phys > - phy-names > @@ -61,4 +65,9 @@ examples: > phy-names = "usb"; > #address-cells = <1>; > #size-cells = <0>; > + > + gnss@4 { > + compatible = "motorola,mapphone-mdm6600-gnss"; > + reg = <4>; > + }; > }; > -- > 2.26.2