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client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C Received: from SATLEXMB03.amd.com (165.204.84.17) by BY1PEPF0001AE19.mail.protection.outlook.com (10.167.242.101) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8901.15 via Frontend Transport; Thu, 3 Jul 2025 11:14:49 +0000 Received: from SATLEXMB04.amd.com (10.181.40.145) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Thu, 3 Jul 2025 06:14:45 -0500 Received: from xhdradheys41.xilinx.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server id 15.1.2507.39 via Frontend Transport; Thu, 3 Jul 2025 06:14:40 -0500 From: Manikanta Guntupalli To: , , , , , , , , , , , , , CC: , , , , Manikanta Guntupalli Subject: [PATCH 1/2] dt-bindings: i3c: Add binding for AMD I3C master controller Date: Thu, 3 Jul 2025 16:44:27 +0530 Message-ID: <20250703111428.2111484-2-manikanta.guntupalli@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250703111428.2111484-1-manikanta.guntupalli@amd.com> References: <20250703111428.2111484-1-manikanta.guntupalli@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: None (SATLEXMB03.amd.com: manikanta.guntupalli@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BY1PEPF0001AE19:EE_|SA1PR12MB9002:EE_ X-MS-Office365-Filtering-Correlation-Id: 96137d99-db84-413d-a873-08ddba22d391 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|36860700013|82310400026|1800799024|921020|13003099007; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Jul 2025 11:14:49.6275 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 96137d99-db84-413d-a873-08ddba22d391 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BY1PEPF0001AE19.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB9002 Content-Type: text/plain; charset="utf-8" Add device tree binding documentation for the AMD I3C master controller. The controller is represented by the compatible string "xlnx,axi-i3c-1.0". The binding specifies required properties including register space, clock, resets, interrupts and number of i3c target devices, and provides an example usage. Signed-off-by: Manikanta Guntupalli --- .../devicetree/bindings/i3c/xlnx,axi-i3c.yaml | 61 +++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Documentation/devicetree/bindings/i3c/xlnx,axi-i3c.yaml diff --git a/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c.yaml b/Docu= mentation/devicetree/bindings/i3c/xlnx,axi-i3c.yaml new file mode 100644 index 000000000000..d4ad3721096f --- /dev/null +++ b/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i3c/xlnx,axi-i3c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AMD I3C master + +maintainers: + - Manikanta Guntupalli + +description: + The AXI-I3C IP is an I3C Controller with an AXI4-Lite interface, compati= ble + with the MIPI I3C Specification v1.1.1. The design includes bidirectiona= l I/O + buffers that implement open collector drivers for the SDA and SCL signal= s. + External pull-up resistors are required to properly hold the bus at a Lo= gic-1 + level when the drivers are released. + +allOf: + - $ref: i3c.yaml# + +properties: + compatible: + const: xlnx,axi-i3c-1.0 + + resets: + maxItems: 1 + + interrupts: + maxItems: 1 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + xlnx,num-targets: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Number of i3c target devices connected on the bus. + minimum: 1 + maximum: 32 + default: 1 + +required: + - reg + - clocks + +unevaluatedProperties: false + +examples: + - | + i3c@80000000 { + compatible =3D "xlnx,axi-i3c-1.0"; + reg =3D <0x80000000 0x10000>; + clocks =3D <&zynqmp_clk 71>; + #address-cells =3D <3>; + #size-cells =3D <0>; + }; +... --=20 2.34.1