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author | Adam Ford <aford173@gmail.com> | 2021-12-02 17:38:26 +0300 |
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committer | Shawn Guo <shawnguo@kernel.org> | 2021-12-14 05:44:43 +0300 |
commit | c4cacb5b80f4f1d83b8bcd6e16672d6732982414 (patch) | |
tree | f3b95e7ef6933f17b15951eb7d8ecf30408f997e /Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml | |
parent | ced795c2648aae44314aa8027e8e1d691ea6153f (diff) | |
download | linux-c4cacb5b80f4f1d83b8bcd6e16672d6732982414.tar.xz |
dt-bindings: soc: imx: Add binding doc for spba bus
Add binding doc for fsl,spba-bus.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml | 68 |
1 files changed, 68 insertions, 0 deletions
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..d42dbb0bbc2e --- /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@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: + $nodename: + pattern: "^spba-bus(@[0-9a-f]+)?$" + + 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: + - | + spba-bus@30000000 { + compatible = "fsl,spba-bus", "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x30000000 0x100000>; + ranges; + }; |