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
+
+examples:
+ - |
+ bus@30000000 {
+ compatible = "fsl,spba-bus", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x30000000 0x100000>;
+ ranges;
+ };
--
2.25.1
