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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Jun 2025 18:29:45.5845 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6bc66e09-2484-42b4-d89b-08dda45ef258 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=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN1PEPF00004682.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB5901 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Introduce 'reset-delay-us' and 'power-on-delay-us' properties. Default delays in datasheet are not good enough for Xilinx Kria KR260 Robotics Starter Kit (and others) so there is a need to program board specific reset and power on delay via DT. Signed-off-by: Radhey Shyam Pandey Acked-by: Michal Simek --- Taken reference from mdio.yaml[1] [1]: Documentation/devicetree/bindings/net/mdio.yaml --- .../devicetree/bindings/usb/microchip,usb5744.yaml | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml b= /Documentation/devicetree/bindings/usb/microchip,usb5744.yaml index c68c04da3399..94a2bebd32da 100644 --- a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml +++ b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml @@ -52,6 +52,16 @@ properties: description: phandle of an usb hub connected via i2c bus. =20 + reset-delay-us: + description: + RESET pulse width in microseconds. + + power-on-delay-us: + description: + Delay after power on in microseconds. USB5744 Hub requires some + delay after reset to get to state when SMBus configuration + data is going to be accepted. + required: - compatible - reg @@ -69,6 +79,8 @@ allOf: vdd2-supply: false peer-hub: false i2c-bus: false + reset-delay-us: false + power-on-delay-us: false else: $ref: /schemas/usb/usb-device.yaml =20 base-commit: 4f27f06ec12190c7c62c722e99ab6243dea81a94 --=20 2.34.1