From: Peter Chen Date: Mon, 16 Mar 2026 06:48:30 +0000 (+0800) Subject: dt-bindings: usb: cdns,usb3: document USBSSP controller support X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=fb14e7f7cbb4abbcde5576282d91352deaff2887;p=thirdparty%2Fkernel%2Fstable.git dt-bindings: usb: cdns,usb3: document USBSSP controller support Update the Cadence USBSS DRD binding to document that it also covers the USBSSP (SuperSpeed Plus, USB 3.1 gen2x1) controller. Both USBSS and USBSSP share the same DRD/OTG register interface, so the driver auto-detects the controller version at runtime — no additional compatible string is needed. Changes to the binding: - Update title and add description - maximum-speed: add super-speed-plus This patch is Assisted-by: Cursor:claude-4.6-opus Signed-off-by: Peter Chen Acked-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260316064831.274865-2-peter.chen@cixtech.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml index a199e5ba6416..2d95fb7321af 100644 --- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml +++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml @@ -4,11 +4,17 @@ $id: http://devicetree.org/schemas/usb/cdns,usb3.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Cadence USBSS-DRD controller +title: Cadence USBSS and USBSSP DRD controller maintainers: - Pawel Laszczak +description: + Cadence USB dual-role controller. Covers USBSS (SuperSpeed, USB 3.0) and + USBSSP (SuperSpeed Plus, USB 3.1 gen2x1). Both variants share the same + DRD/OTG register interface, so the driver auto-detects the controller + version at runtime. + properties: compatible: const: cdns,usb3 @@ -49,7 +55,7 @@ properties: cdns3 to type C connector. maximum-speed: - enum: [super-speed, high-speed, full-speed] + enum: [super-speed-plus, super-speed, high-speed, full-speed] phys: minItems: 1