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Wed, 26 Apr 2023 05:43:24 -0500 From: Harini Katakam To: , , , , , , , , , , , CC: , , , , , , Subject: [PATCH net-next v2 2/3] dt-bindings: mscc: Add RGMII RX and TX delay tuning Date: Wed, 26 Apr 2023 16:13:12 +0530 Message-ID: <20230426104313.28950-3-harini.katakam@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230426104313.28950-1-harini.katakam@amd.com> References: <20230426104313.28950-1-harini.katakam@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT060:EE_|SA1PR12MB7318:EE_ X-MS-Office365-Filtering-Correlation-Id: 4be0ae4f-a35a-4247-4e8e-08db464313dd 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:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(376002)(346002)(39860400002)(396003)(136003)(451199021)(40470700004)(36840700001)(46966006)(8676002)(7416002)(54906003)(44832011)(8936002)(70206006)(81166007)(478600001)(86362001)(70586007)(82310400005)(2906002)(41300700001)(316002)(4326008)(6666004)(110136005)(5660300002)(26005)(1076003)(186003)(47076005)(82740400003)(921005)(356005)(40460700003)(40480700001)(336012)(2616005)(426003)(36756003)(36860700001)(83380400001)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Apr 2023 10:43:31.1518 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4be0ae4f-a35a-4247-4e8e-08db464313dd 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: CO1NAM11FT060.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB7318 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Harini Katakam Add optional properties to tune RGMII RX and TX delay. The current default value in the Linux driver, when the phy-mode is rgmii-id, is 2ns for both. These properties take priority if specified. Signed-off-by: Harini Katakam Signed-off-by: Radhey Shyam Pandey Signed-off-by: Michal Simek --- v2: - Updated DT binding description and commit for optional delay tuning to be clearer on the precedence - Updated dt property name to include vendor instead of phy device name Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt b/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt index 0a3647fe331b..2b779bc3096b 100644 --- a/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt +++ b/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt @@ -33,6 +33,8 @@ Optional properties: VSC8531_DUPLEX_COLLISION (8). - load-save-gpios : GPIO used for the load/save operation of the PTP hardware clock (PHC). +- mscc,rx-delay : RGMII RX delay. Allowed values are 0.2 - 3.4 ns. +- mscc,tx-delay : RGMII TX delay. Allowed values are 0.2 - 3.4 ns. Table: 1 - Edge rate change