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Subject[PATCH V4 1/5] dt-bindings: soc: imx: Add binding doc for spba bus
Date
Add binding doc for fsl,spba-bus.

Signed-off-by: Adam Ford <aford173@gmail.com>
---
V4: Correct errors in YAML
V3: New to series

.../devicetree/bindings/bus/fsl,spba-bus.yaml | 66 +++++++++++++++++++
1 file changed, 66 insertions(+)

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..d1037acd2734
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml
@@ -0,0 +1,66 @@
+# 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@kernel.org>
+
+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:
+ contains:
+ const: fsl,spba-bus
+ 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 {
+ compatible = "fsl,spba-bus", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ };
--
2.25.1
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