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Thu, 24 Nov 2022 00:35:53 -0800 From: Manikanta Maddireddy To: , , , , , CC: , , , , , , , , Manikanta Maddireddy Subject: [PATCH 1/3] dt-bindings: PHY: P2U: Add PCIe lane margining support Date: Thu, 24 Nov 2022 14:05:08 +0530 Message-ID: <20221124083510.3008139-2-mmaddireddy@nvidia.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221124083510.3008139-1-mmaddireddy@nvidia.com> References: <20221124083510.3008139-1-mmaddireddy@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT068:EE_|DM4PR12MB5937:EE_ X-MS-Office365-Filtering-Correlation-Id: c0ef1cd8-1fe1-414f-b5e2-08dacdf6f15b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230022)(4636009)(136003)(376002)(396003)(346002)(39860400002)(451199015)(46966006)(36840700001)(40470700004)(2906002)(82740400003)(7636003)(40480700001)(356005)(7416002)(7696005)(6666004)(26005)(82310400005)(8936002)(316002)(54906003)(6636002)(110136005)(86362001)(1076003)(186003)(2616005)(426003)(336012)(47076005)(107886003)(41300700001)(36756003)(5660300002)(36860700001)(478600001)(70586007)(8676002)(70206006)(4326008)(40460700003)(2101003);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Nov 2022 08:36:11.9752 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c0ef1cd8-1fe1-414f-b5e2-08dacdf6f15b X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT068.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB5937 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221124_003615_192250_55904924 X-CRM114-Status: UNSURE ( 7.42 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org Tegra234 supports PCIe lane margining. P2U HW acts as a relay to exchange margin control data and margin status between PCIe controller and UPHY. Signed-off-by: Manikanta Maddireddy --- .../bindings/phy/phy-tegra194-p2u.yaml | 50 +++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.yaml b/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.yaml index 4dc5205d893b..0ba3f6a0b474 100644 --- a/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.yaml +++ b/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.yaml @@ -40,6 +40,51 @@ properties: '#phy-cells': const: 0 + interrupts: + items: + description: P2U interrupt for Gen4 lane margining functionality. + + interrupt-names: + items: + - const: intr + + nvidia,bpmp: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: Must contain a pair of phandles to BPMP controller node followed by P2U ID. + items: + - items: + - description: phandle to BPMP controller node + - description: P2U instance ID + maximum: 24 + +allOf: + - if: + properties: + compatible: + contains: + enum: + - nvidia,tegra194-p2u + then: + required: + - reg + - reg-names + - '#phy-cells' + + - if: + properties: + compatible: + contains: + enum: + - nvidia,tegra234-p2u + then: + required: + - reg + - reg-names + - '#phy-cells' + - interrupts + - interrupt-names + - nvidia,bpmp + additionalProperties: false examples: @@ -49,5 +94,10 @@ examples: reg = <0x03e10000 0x10000>; reg-names = "ctl"; + interrupts = <0 337 0x04>; + interrupt-names = "intr"; + + nvidia,bpmp = <&bpmp 1>; + #phy-cells = <0>; }; -- 2.25.1 -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy