On Wed, Nov 11, 2020 at 8:58 AM Adam Ford <aford173@xxxxxxxxx> wrote: > > Add binding doc for fsl,spba-bus. > > Signed-off-by: Adam Ford <aford173@xxxxxxxxx> > --- > make dt_binding_check showed no errors if I did this right. > > 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/Makefile b/Documentation/devicetree/bindings/Makefile > index f50420099a55..ec8073cb2e71 100644 > --- a/Documentation/devicetree/bindings/Makefile > +++ b/Documentation/devicetree/bindings/Makefile > @@ -3,8 +3,6 @@ DT_DOC_CHECKER ?= dt-doc-validate > DT_EXTRACT_EX ?= dt-extract-example > DT_MK_SCHEMA ?= dt-mk-schema > > -DT_SCHEMA_LINT = $(shell which yamllint) > - ??? > DT_SCHEMA_MIN_VERSION = 2020.8.1 > > PHONY += check_dtschema_version > @@ -26,10 +24,6 @@ find_cmd = find $(srctree)/$(src) \( -name '*.yaml' ! \ > -name 'processed-schema*' ! \ > -name '*.example.dt.yaml' \) > > -quiet_cmd_yamllint = LINT $(src) > - cmd_yamllint = $(find_cmd) | \ > - xargs $(DT_SCHEMA_LINT) -f parsable -c $(srctree)/$(src)/.yamllint > - > quiet_cmd_chk_bindings = CHKDT $@ > cmd_chk_bindings = $(find_cmd) | \ > xargs -n200 -P$$(nproc) $(DT_DOC_CHECKER) -u $(srctree)/$(src) > @@ -43,7 +37,6 @@ quiet_cmd_mk_schema = SCHEMA $@ > rm -f $$f > > define rule_chkdt > - $(if $(DT_SCHEMA_LINT),$(call cmd,yamllint),) > $(call cmd,chk_bindings) > $(call cmd,mk_schema) > endef > @@ -55,7 +48,7 @@ override DTC_FLAGS := \ > -Wno-graph_child_address \ > -Wno-interrupt_provider > > -$(obj)/processed-schema-examples.json: $(DT_DOCS) $(src)/.yamllint check_dtschema_version FORCE > +$(obj)/processed-schema-examples.json: $(DT_DOCS) check_dtschema_version FORCE > $(call if_changed_rule,chkdt) > > ifeq ($(DT_SCHEMA_FILES),) > 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..91dae405ed39 > --- /dev/null > +++ b/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml > @@ -0,0 +1,65 @@ > +# 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 ] > + > + ranges: true > + > +required: > + - compatible > + - '#address-cells' > + - '#size-cells' > + - ranges > + > +additionalProperties: true > + > +type: object Should be: 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 >
