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Date: Sat, 7 Nov 2020 05:58:04 -0600 From: Adam Ford <aford173@...il.com> To: linux-arm-kernel@...ts.infradead.org Cc: aford@...conembedded.com, Adam Ford <aford173@...il.com>, Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>, NXP Linux Team <linux-imx@....com>, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH V4 1/5] dt-bindings: soc: imx: Add binding doc for spba bus Add binding doc for fsl,spba-bus. Signed-off-by: Adam Ford <aford173@...il.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@...nel.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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