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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 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE, T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1764235490415063620?= X-GMAIL-MSGID: =?utf-8?q?1764235490415063620?= 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