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Thu, 5 Nov 2026 06:41:35 +0000 From: Chancel Liu To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, Frank.Li@nxp.com, s.hauer@pengutronix.de Cc: kernel@pengutronix.de, festevam@gmail.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 1/4] dt-bindings: connector: Add fsl,aud-io-slot binding Date: Thu, 5 Nov 2026 15:41:14 +0900 Message-ID: <20261105064117.277495-2-chancel.liu@oss.nxp.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20261105064117.277495-1-chancel.liu@oss.nxp.com> References: <20261105064117.277495-1-chancel.liu@oss.nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SL2P216CA0081.KORP216.PROD.OUTLOOK.COM (2603:1096:101:2::14) To GVXPR04MB10021.eurprd04.prod.outlook.com (2603:10a6:150:112::20) X-Archived-By: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: GVXPR04MB10021:EE_|DBBPR04MB8026:EE_ X-MS-Office365-Filtering-Correlation-Id: 2298d6e5-ffb0-4b7b-2e3c-08df3b07d5c6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|19092799006|366016|376014|7416014|23010399003|22082099003|18002099003|6133799003|10067099003|3023799007|56012099006|11063799006|261026140227099003|261028144727099003|261026121527099003|261021121427099003|261102123227099003|261022105027099003|261009223027099003; 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It acts as a nexus that exposes a constrained set of I/O resources, such as GPIOs, clocks and interrupts, through fixed electrical wiring. All actual hardware providers reside on the base board. The connector node only defines index-based mappings to those providers. This connector type is present on i.MX95 19x19 EVK and i.MX952 EVK, where it is used to attach the IMX-AUD-IO audio expansion card[1]. The same add-on board can be reused across different base boards that carry this connector. [1]https://www.nxp.com/part/IMX-AUD-IO Signed-off-by: Chancel Liu --- .../bindings/connector/fsl,aud-io-slot.yaml | 96 +++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 Documentation/devicetree/bindings/connector/fsl,aud-io-slot.yaml diff --git a/Documentation/devicetree/bindings/connector/fsl,aud-io-slot.yaml b/Documentation/devicetree/bindings/connector/fsl,aud-io-slot.yaml new file mode 100644 index 000000000000..6e1e3f1b6a33 --- /dev/null +++ b/Documentation/devicetree/bindings/connector/fsl,aud-io-slot.yaml @@ -0,0 +1,96 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/connector/fsl,aud-io-slot.yaml# +$schema: http://devicetree.org/meta-schemas/base.yaml# + +title: NXP AUD-IO Slot + +maintainers: + - Frank Li + - Chancel Liu + +description: + The NXP AUD-IO slot represents a physically present I/O connector on + the base board. It acts as a nexus that exposes a constrained set of + I/O resources, such as GPIOs, clocks and interrupts, through fixed + electrical wiring. All actual hardware providers reside on the base + board. The connector node only defines index-based mappings to those + providers. This connector type is present on i.MX95 19x19 EVK and + i.MX952 EVK, where it is used to attach the IMX-AUD-IO expansion card. + +properties: + compatible: + oneOf: + - items: + - enum: + - fsl,imx952-evk-aud-io + - const: fsl,imx95-19x19-evk-aud-io + - const: fsl,imx95-19x19-evk-aud-io + + '#gpio-cells': + const: 2 + + gpio-map: + minItems: 1 + maxItems: 3 + + gpio-map-mask: + items: + - const: 0xffffffff + - const: 0x0 + + gpio-map-pass-thru: + items: + - const: 0x0 + - const: 0xffffffff + + '#clock-cells': + const: 1 + + clock-map: + minItems: 1 + maxItems: 2 + + '#address-cells': + const: 0 + + '#interrupt-cells': + const: 2 + + interrupt-map: + minItems: 1 + maxItems: 2 + + interrupt-map-mask: + items: + - const: 0xffffffff + - const: 0x0 + +required: + - compatible + - '#gpio-cells' + - gpio-map + - gpio-map-mask + - gpio-map-pass-thru + +additionalProperties: false + +examples: + - | + #include + #include + + connector { + compatible = "fsl,imx95-19x19-evk-aud-io"; + #gpio-cells = <2>; + gpio-map = <0 0 &gpio1 8 GPIO_ACTIVE_LOW>; + gpio-map-mask = <0xffffffff 0x0>; + gpio-map-pass-thru = <0x0 0xffffffff>; + #clock-cells = <1>; + clock-map = <0 &clk 1>; + #address-cells = <0>; + #interrupt-cells = <2>; + interrupt-map-mask = <0xffffffff 0x0>; + interrupt-map = <0 0 &gpio2 27 IRQ_TYPE_LEVEL_LOW>; + }; -- 2.50.1