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client-ip=165.204.84.17; helo=satlexmb08.amd.com; pr=C Received: from satlexmb08.amd.com (165.204.84.17) by BN1PEPF00004689.mail.protection.outlook.com (10.167.243.134) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.360.3 via Frontend Transport; Mon, 24 Aug 2026 04:48:49 +0000 Received: from satlexmb07.amd.com (10.181.42.216) by satlexmb08.amd.com (10.181.42.217) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45; Sun, 23 Aug 2026 23:48:47 -0500 Received: from xhdshubhraj40.xilinx.com (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server id 15.2.2562.45 via Frontend Transport; Sun, 23 Aug 2026 23:48:44 -0500 From: Shubham Patil To: , , , , CC: , , , , Shubham Patil Subject: [PATCH v2 1/3] dt-bindings: i3c: xlnx: Add IBI and hot-join capability properties Date: Mon, 24 Aug 2026 10:18:33 +0530 Message-ID: <20260824044835.2924141-2-shubhamsanjay.patil@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260824044835.2924141-1-shubhamsanjay.patil@amd.com> References: <20260824044835.2924141-1-shubhamsanjay.patil@amd.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN1PEPF00004689:EE_|PH7PR12MB5926:EE_ X-MS-Office365-Filtering-Correlation-Id: e2a462ff-4579-42c3-d735-08df019afd0b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700016|23010399003|376014|1800799024|10067099003|22082099003|18002099003|5023799004|11063799006|56012099006; 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Describe them with two boolean properties. A Hot-Join request is acknowledged by the IBI machinery, so a hot-join capable design is always IBI capable as well. Both events are reported through the controller interrupt, which is therefore required whenever the capability is present. Signed-off-by: Shubham Patil --- Changes in V2: - Rename the properties to "xlnx,in-band-interrupt-capable" and "xlnx,hot-join-capable", and expand their descriptions. - Express the interrupt requirement with dependencies: instead of an allOf/if-then clause. --- .../bindings/i3c/xlnx,axi-i3c-1.0.yaml | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml b/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml index 2caa245a8656..a04becc07374 100644 --- a/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml +++ b/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml @@ -32,11 +32,33 @@ properties: interrupts: maxItems: 1 + xlnx,in-band-interrupt-capable: + type: boolean + description: + The IP is synthesized with In-Band Interrupt support. An In-Band + Interrupt lets a target signal the controller over the SDA and SCL + pair instead of a dedicated side-band interrupt line, by driving its + own dynamic address during bus arbitration. Such requests are + reported through the controller interrupt. + + xlnx,hot-join-capable: + type: boolean + description: + The IP is synthesized with Hot-Join support. Hot-Join lets a target + attached or powered up after the bus is already running announce + itself using the reserved Hot-Join address, so that the controller + can assign it a dynamic address. The request is acknowledged by the + same machinery as an In-Band Interrupt. + required: - compatible - reg - clocks +dependencies: + xlnx,hot-join-capable: ["xlnx,in-band-interrupt-capable"] + xlnx,in-band-interrupt-capable: [interrupts] + allOf: - $ref: i3c.yaml# @@ -54,5 +76,7 @@ examples: interrupts = ; #address-cells = <3>; #size-cells = <0>; + xlnx,in-band-interrupt-capable; + xlnx,hot-join-capable; }; ... -- 2.34.1