On Wed, Nov 18, 2020 at 5:04 PM Adam Ford <aford173@xxxxxxxxx> wrote: > > Add binding doc for fsl,spba-bus. > > Signed-off-by: Adam Ford <aford173@xxxxxxxxx> Rob, Sorry to be a pest. I have a series for the i.MX8M Nano that's waiting on this. Have you had time to review my latest attempt? adam > --- > make dt_binding_check -j8 |grep spba > DTEX Documentation/devicetree/bindings/bus/fsl,spba-bus.example.dts > DTC Documentation/devicetree/bindings/bus/fsl,spba-bus.example.dt.yaml > CHECK Documentation/devicetree/bindings/bus/fsl,spba-bus.example.dt.yaml > > V5: Rebase on 5.10-rc2 to be able to check yaml > Add Reg entry > > V4: Remove an accidental makefile change > Move type:object under additional properties > > V3: Rebase sample from aips-bus example > Split off from series adding i.MX8M Nano functions to reduce noise > > V2: Attempted to update yaml from feedback > > 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..e9f77ecae3d3 > --- /dev/null > +++ b/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml > @@ -0,0 +1,68 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/bus/fsl,spba-bus.yaml# > +$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. > + > +select: > + properties: > + compatible: > + contains: > + const: fsl,spba-bus > + required: > + - compatible > + > +properties: > + $nodename: > + pattern: "^bus(@[0-9a-f]+)?$" > + > + compatible: > + items: > + - const: fsl,spba-bus > + - const: simple-bus > + > + '#address-cells': > + enum: [ 1, 2 ] > + > + '#size-cells': > + enum: [ 1, 2 ] > + > + reg: > + maxItems: 1 > + > + ranges: true > + > +required: > + - compatible > + - '#address-cells' > + - '#size-cells' > + - reg > + - ranges > + > +additionalProperties: > + type: object > + > +examples: > + - | > + bus@30000000 { > + compatible = "fsl,spba-bus", "simple-bus"; > + #address-cells = <1>; > + #size-cells = <1>; > + reg = <0x30000000 0x100000>; > + ranges; > + }; > -- > 2.25.1 >
