On Wed, Apr 15, 2020 at 06:39:56PM +0200, Sam Ravnborg wrote: > Hi Maxime. > > On Tue, Apr 14, 2020 at 10:28:03AM +0200, Maxime Ripard wrote: > > Hi Sam, > > > > On Sun, Apr 12, 2020 at 08:20:09PM +0200, Sam Ravnborg wrote: > > > diff --git a/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.yaml b/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.yaml > > > new file mode 100644 > > > index 000000000000..7eb6266a25a2 > > > --- /dev/null > > > +++ b/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.yaml > > > @@ -0,0 +1,102 @@ > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > > +%YAML 1.2 > > > +--- > > > +$id: http://devicetree.org/schemas/display/atmel/hlcdc-dc.yaml# > > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > > + > > > +title: Atmel HLCDC (High LCD Controller) display controller > > > + > > > +maintainers: > > > + - Sam Ravnborg <sam@xxxxxxxxxxxx> > > > + - Boris Brezillon <bbrezillon@xxxxxxxxxx> > > > + > > > +description: | > > > + The Atmel HLCDC Display Controller is subdevice of the HLCDC MFD device. > > > + See ../../mfd/atmel-hlcdc.yaml for more details. > > > + > > > +properties: > > > + compatible: > > > + const: atmel,hlcdc-display-controller > > > + > > > + "#address-cells": > > > + const: 1 > > > + "#size-cells": > > > + const: 0 > > > + > > > +required: > > > + - compatible > > > + - "#address-cells" > > > + - "#size-cells" > > > + > > > +patternProperties: > > > + "^port@[0-9]$": > > > + type: object > > > + description: | > > > + A port node with endpoint definitions as defined in > > > + ../../media/video-interfaces.txt > > > + > > > + properties: > > > + "#address-cells": > > > + const: 1 > > > + > > > + "#size-cells": > > > + const: 0 > > > + > > > + reg: > > > + maxItems: 1 > > > + description: The virtual number of the port > > > + > > > + patternProperties: > > > + "^endpoint(@[0-9])$": > > > > I guess you meant ^endpoint(@[0-9])?$ instead? > > I think "^endpoint@[0-9]$" will do the trick. > No need for endpoints with numbers higher than 9. If you want to stick to pedantic DT, then if there's a single endpoint, you should avoid reg and the unit-address, and this is something that dtc will complain about (even though it's silenced in Linux), so yeah, ? seems the way to go. Maxime
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