On Fri, Oct 15, 2021 at 09:17:41PM +0200, Sergio Paracuellos wrote: > Add device tree bindings for palmbus controller present in all the MIPS > ralink based SoCs. > > Signed-off-by: Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx> > --- > .../devicetree/bindings/bus/palmbus.yaml | 81 +++++++++++++++++++ > 1 file changed, 81 insertions(+) > create mode 100644 Documentation/devicetree/bindings/bus/palmbus.yaml > > diff --git a/Documentation/devicetree/bindings/bus/palmbus.yaml b/Documentation/devicetree/bindings/bus/palmbus.yaml > new file mode 100644 > index 000000000000..d5159a4f3cf8 > --- /dev/null > +++ b/Documentation/devicetree/bindings/bus/palmbus.yaml > @@ -0,0 +1,81 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/bus/palmbus.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Ralink PalmBus Device Tree Bindings > + > +maintainers: > + - Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx> > + > +description: | > + The ralink palmbus controller can be found in all ralink MIPS > + SoCs. It provides an external bus for connecting multiple > + external devices to the SoC. > + > +properties: > + $nodename: > + pattern: "^palmbus(@[0-9a-f]+)?$" > + > + "#address-cells": > + const: 1 > + > + "#size-cells": > + const: 1 > + > + compatible: > + const: palmbus > + > + reg: > + maxItems: 1 > + > + ranges: true > + > +patternProperties: > + # All other properties should be child nodes with unit-address and 'reg' > + "^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}@[0-9a-fA-F]+$": The node name pattern is already checked elsewhere. You only need to define the unit-address part which should be lowercase hex. So just: '@[0-9a-f]+$' > + type: object > + properties: > + reg: > + maxItems: 1 > + > + required: > + - reg > + > +required: > + - compatible > + - reg > + - "#address-cells" > + - "#size-cells" > + - ranges > + > +additionalProperties: false > + > +examples: > + - | > + palmbus@1e000000 { > + compatible = "palmbus"; > + reg = <0x1e000000 0x100000> > + #address-cells = <1>; > + #size-cells = <1>; > + ranges = <0x0 0x1e000000 0x0fffff>; > + > + syscon@0 { > + compatible = "mediatek,mt7621-sysc", "syscon"; > + reg = <0x0 0x100>; > + #clock-cells = <1>; > + #reset-cells = <1>; > + ralink,memctl = <&memc>; > + clock-output-names = "xtal", "cpu", "bus", > + "50m", "125m", "150m", > + "250m", "270m"; > + }; > + > + wdt@100 { > + compatible = "mediatek,mt7621-wdt"; > + reg = <0x100 0x100>; > + }; > + }; > + > +... > -- > 2.33.0 > >
