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[83.54.181.252]) by smtp.gmail.com with ESMTPSA id f15sm8162777wrt.38.2021.10.16.13.23.33 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 16 Oct 2021 13:23:34 -0700 (PDT) From: Sergio Paracuellos To: devicetree@vger.kernel.org Cc: robh@kernel.org, john@phrozen.org, neil@brown.name, linux-kernel@vger.kernel.org Subject: [PATCH v4] dt-bindings: bus: add palmbus device tree bindings Date: Sat, 16 Oct 2021 22:23:32 +0200 Message-Id: <20211016202332.8154-1-sergio.paracuellos@gmail.com> X-Mailer: git-send-email 2.33.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add device tree bindings for palmbus controller present in all the MIPS ralink based SoCs. Signed-off-by: Sergio Paracuellos --- changes in v4: The node name pattern is already checked elsewhere. There is only need to define the unit-address part which should be lowercase hex. Changes in v3: change sample to use child node which its bindings are already in YAML format to make dtschema happier. Changes in v2: fixed missing semicolon in example. .../devicetree/bindings/bus/palmbus.yaml | 79 +++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 Documentation/devicetree/bindings/bus/palmbus.yaml diff --git a/Documentation/devicetree/bindings/bus/palmbus.yaml b/Documentation/devicetree/bindings/bus/palmbus.yaml new file mode 100644 index 000000000000..4f6352eff050 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/palmbus.yaml @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/palmbus.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ralink PalmBus Device Tree Bindings + +maintainers: + - Sergio Paracuellos + +description: | + The ralink palmbus controller can be found in all ralink MIPS + SoCs. It provides an external bus for connecting multiple + external devices to the SoC. + +properties: + $nodename: + pattern: "^palmbus(@[0-9a-f]+)?$" + + "#address-cells": + const: 1 + + "#size-cells": + const: 1 + + compatible: + const: palmbus + + reg: + maxItems: 1 + + ranges: true + +patternProperties: + # All other properties should be child nodes with unit-address and 'reg' + "^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}@[0-9a-fA-F]+$": + type: object + properties: + reg: + maxItems: 1 + + required: + - reg + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + - ranges + +additionalProperties: false + +examples: + - | + #include + #include + palmbus@1e000000 { + compatible = "palmbus"; + reg = <0x1e000000 0x100000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x1e000000 0x0fffff>; + + gpio@600 { + #gpio-cells = <2>; + #interrupt-cells = <2>; + compatible = "mediatek,mt7621-gpio"; + gpio-controller; + gpio-ranges = <&pinctrl 0 0 95>; + interrupt-controller; + reg = <0x600 0x100>; + interrupt-parent = <&gic>; + interrupts = ; + }; + }; + +... -- 2.33.0