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Tue, 25 Mar 2025 07:18:39 +0000 Received: from AS8PR04MB8644.eurprd04.prod.outlook.com ([fe80::e86d:f110:534e:480a]) by AS8PR04MB8644.eurprd04.prod.outlook.com ([fe80::e86d:f110:534e:480a%5]) with mapi id 15.20.8534.040; Tue, 25 Mar 2025 07:18:39 +0000 From: Mike Looijmans To: linux-pci@vger.kernel.org, devicetree@vger.kernel.org CC: Mike Looijmans , Bjorn Helgaas , Conor Dooley , Krzysztof Kozlowski , =?utf-8?q?Krzysztof_Wilczy=C5=84s?= =?utf-8?q?ki?= , Lorenzo Pieralisi , Manivannan Sadhasivam , Rob Herring , Thippeswamy Havalige , linux-kernel@vger.kernel.org Subject: [PATCH v2 2/3] dt-bindings: PCI: xilinx-pcie: Add reset-gpios for PERST# Date: Tue, 25 Mar 2025 08:18:26 +0100 Message-ID: <20250325071832.21229-2-mike.looijmans@topic.nl> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250325071832.21229-1-mike.looijmans@topic.nl> References: <20250325071832.21229-1-mike.looijmans@topic.nl> <1b153bce-a66a-45ee-a5c6-963ea6fb1c82.949ef384-8293-46b8-903f-40a477c056ae.7424060c-f116-40af-8bb3-d789f371b07a@emailsignatures365.codetwo.com> X-ClientProxiedBy: AM0PR08CA0013.eurprd08.prod.outlook.com (2603:10a6:208:d2::26) To AS8PR04MB8644.eurprd04.prod.outlook.com (2603:10a6:20b:42b::12) Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-TrafficTypeDiagnostic: AS8PR04MB8644:EE_|DB9PR04MB9353:EE_|AMS0EPF000001A1:EE_|VI0PR04MB11071:EE_ X-MS-Office365-Filtering-Correlation-Id: 6e701b04-7760-4ed6-fa6c-08dd6b6d4608 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0;ARA:13230040|366016|1800799024|376014|7416014|52116014|38350700014; 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X-OriginatorOrg: topic.nl X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Mar 2025 07:18:42.6766 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6e701b04-7760-4ed6-fa6c-08dd6b6d4608 X-MS-Exchange-CrossTenant-Id: 449607a5-3517-482d-8d16-41dd868cbda3 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=449607a5-3517-482d-8d16-41dd868cbda3;Ip=[13.93.42.39];Helo=[westeu12-emailsignatures-cloud.codetwo.com] X-MS-Exchange-CrossTenant-AuthSource: AMS0EPF000001A1.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI0PR04MB11071 Introduce optional `reset-gpios` property to enable GPIO-based control of the PCIe root port PERST# signal, as described in pci.txt. Signed-off-by: Mike Looijmans --- Changes in v2: Add binding for reset-gpios .../devicetree/bindings/pci/xlnx,axi-pcie-host.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/xlnx,axi-pcie-host.yaml b/Documentation/devicetree/bindings/pci/xlnx,axi-pcie-host.yaml index fb87b960a250..2b0fabdd5e16 100644 --- a/Documentation/devicetree/bindings/pci/xlnx,axi-pcie-host.yaml +++ b/Documentation/devicetree/bindings/pci/xlnx,axi-pcie-host.yaml @@ -28,6 +28,9 @@ properties: ranges for the PCI memory regions (I/O space region is not supported by hardware) + reset-gpios: + maxItems: 1 + "#interrupt-cells": const: 1 @@ -63,6 +66,7 @@ unevaluatedProperties: false examples: - | + #include #include #include @@ -80,6 +84,7 @@ examples: <0 0 0 3 &pcie_intc 3>, <0 0 0 4 &pcie_intc 4>; ranges = <0x02000000 0 0x60000000 0x60000000 0 0x10000000>; + reset-gpios = <&gpio0 9 GPIO_ACTIVE_LOW>; pcie_intc: interrupt-controller { interrupt-controller; #address-cells = <0>;