Add binding doc for fsl,spba-bus. Signed-off-by: Adam Ford <aford173@xxxxxxxxx> diff --git a/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml b/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml new file mode 100644 index 000000000000..acb3944168ed --- /dev/null +++ b/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/simple-pm-bus.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Shared Peripherals Bus Interface + +maintainers: + - Shawn Guo <shawnguo@xxxxxxxxxx> + +description: | + A simple bus enabling access to shared peripherals. + + The "spba-bus" follows the "simple-bus" set of properties, as + specified in the Devicetree Specification. It is an extension of + "simple-bus" because the SDMA controller uses this compatible flag to + determine which peripherals are available to it and the range over which + the SDMA can access. There are no special clocks for the bus, because + the SDMA controller itself has its interrupt, and clock assignments. + +properties: + $nodename: + pattern: "^bus(@[0-9a-f]+)?$" + + compatible: + contains: + const: fsl,spba-bus + description: + Shall contain "fsl,spba-bus" in addition to "simple-bus" + compatible strings. + + '#address-cells': + enum: [ 1, 2 ] + + '#size-cells': + enum: [ 1, 2 ] + + ranges: true + +required: + - compatible + - '#address-cells' + - '#size-cells' + - ranges + +additionalProperties: true + +examples: + - | + + bus { + compatible = "fsl,spba-bus", "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + }; -- 2.25.1
