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Merge tag 'usb-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH: "Here is the "big" set of USB and Thunderbolt driver updates for 7.0-rc1. Overall more lines were removed than added, thanks to dropping the obsolete isp1362 USB host controller driver, always a nice change. Other than that, nothing major happening here, highlights are: - lots of dwc3 driver updates and new hardware support added - usb gadget function driver updates - usb phy driver updates - typec driver updates and additions - USB rust binding updates for syntax and formatting changes - more usb serial device ids added - other smaller USB core and driver updates and additions All of these have been in linux-next for a long time, with no reported problems" * tag 'usb-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (77 commits) usb: typec: ucsi: Add Thunderbolt alternate mode support usb: typec: hd3ss3220: Check if regulator needs to be switched usb: phy: tegra: parametrize PORTSC1 register offset usb: phy: tegra: parametrize HSIC PTS value usb: phy: tegra: return error value from utmi_wait_register usb: phy: tegra: cosmetic fixes dt-bindings: usb: renesas,usbhs: Add RZ/G3E SoC support usb: dwc2: fix resume failure if dr_mode is host usb: cdns3: fix role switching during resume usb: dwc3: gadget: Move vbus draw to workqueue context USB: serial: option: add Telit FN920C04 RNDIS compositions usb: dwc3: Log dwc3 address in traces usb: gadget: tegra-xudc: Add handling for BLCG_COREPLL_PWRDN usb: phy: tegra: add HSIC support usb: phy: tegra: use phy type directly usb: typec: ucsi: Enforce mode selection for cros_ec_ucsi usb: typec: ucsi: Support mode selection to activate altmodes usb: typec: Introduce mode_selection bit usb: typec: Implement mode selection usb: typec: Expose alternate mode priority via sysfs ...
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‎Documentation/ABI/testing/configfs-usb-gadget-midi‎

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@@ -4,11 +4,12 @@ KernelVersion: 3.19
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Description:
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The attributes:
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7-
========== ====================================
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index index value for the USB MIDI adapter
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id ID string for the USB MIDI adapter
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buflen MIDI buffer length
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qlen USB read request queue length
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in_ports number of MIDI input ports
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out_ports number of MIDI output ports
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========== ====================================
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================ ====================================
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index index value for the USB MIDI adapter
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id ID string for the USB MIDI adapter
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buflen MIDI buffer length
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qlen USB read request queue length
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in_ports number of MIDI input ports
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out_ports number of MIDI output ports
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interface_string USB AudioControl interface string
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================ ====================================

‎Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd‎

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up to 5000. The default value is 64 ms.
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This polling interval is used while DbC is enabled but has no
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active data transfers.
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What: /sys/bus/pci/drivers/xhci_hcd/.../dbc_serial
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Date: January 2026
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Contact: Łukasz Bartosik <ukaszb@chromium.org>
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Description:
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The dbc_serial attribute allows to change the serial number
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string descriptor presented by the debug device when a host
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requests a string descriptor with iSerialNumber index.
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Index is found in the iSerialNumber field in the device
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descriptor.
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Value can only be changed while debug capability (DbC) is in
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disabled state to prevent USB device descriptor change while
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connected to a USB host.
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The default value is "0001".
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The field length can be from 1 to 126 characters.
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What: /sys/bus/pci/drivers/xhci_hcd/.../dbc_product
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Date: January 2026
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Contact: Łukasz Bartosik <ukaszb@chromium.org>
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Description:
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The dbc_product attribute allows to change the product string
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descriptor presented by the debug device when a host requests
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a string descriptor with iProduct index.
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Index is found in the iProduct field in the device descriptor.
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Value can only be changed while debug capability (DbC) is in
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disabled state to prevent USB device descriptor change while
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connected to a USB host.
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The default value is "Linux USB Debug Target".
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The field length can be from 1 to 126 characters.
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What: /sys/bus/pci/drivers/xhci_hcd/.../dbc_manufacturer
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Date: January 2026
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Contact: Łukasz Bartosik <ukaszb@chromium.org>
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Description:
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The dbc_manufacturer attribute allows to change the manufacturer
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string descriptor presented by the debug device when a host
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requests a string descriptor with iManufacturer index.
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Value can only be changed while debug capability (DbC) is in
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disabled state to prevent USB device descriptor change while
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connected to a USB host.
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The default value is "Linux Foundation".
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The field length can be from 1 to 126 characters.

‎Documentation/ABI/testing/sysfs-class-typec‎

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@@ -162,6 +162,17 @@ Description: Lists the supported USB Modes. The default USB mode that is used
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- usb3 (USB 3.2)
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- usb4 (USB4)
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What: /sys/class/typec/<port>/<alt-mode>/priority
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Date: July 2025
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Contact: Andrei Kuchynski <akuchynski@chromium.org>
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Description:
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Displays and allows setting the priority for a specific alternate mode.
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The priority is an integer in the range 0-255. A lower numerical value
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indicates a higher priority (0 is the highest).
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If the new value is already in use by another mode, the priority of the
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conflicting mode and any subsequent modes will be incremented until they
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are all unique.
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USB Type-C partner devices (eg. /sys/class/typec/port0-partner/)
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What: /sys/class/typec/<port>-partner/accessory_mode

‎Documentation/admin-guide/thunderbolt.rst‎

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@@ -370,7 +370,7 @@ is built-in to the kernel image, there is no need to do anything.
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The driver will create one virtual ethernet interface per Thunderbolt
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port which are named like ``thunderbolt0`` and so on. From this point
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you can either use standard userspace tools like ``ifconfig`` to
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you can either use standard userspace tools like ``ip`` to
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configure the interface or let your GUI handle it automatically.
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Forcing power

‎Documentation/devicetree/bindings/usb/aspeed,usb-vhub.yaml‎

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Supported number of devices and endpoints vary depending on hardware
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revisions. AST2400 and AST2500 Virtual Hub supports 5 downstream devices
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and 15 generic endpoints, while AST2600 Virtual Hub supports 7 downstream
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devices and 21 generic endpoints.
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and 15 generic endpoints, while AST2600 and AST2700 Virtual Hub supports
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7 downstream devices and 21 generic endpoints.
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properties:
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compatible:
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enum:
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- aspeed,ast2400-usb-vhub
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- aspeed,ast2500-usb-vhub
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- aspeed,ast2600-usb-vhub
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- aspeed,ast2700-usb-vhub
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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resets:
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maxItems: 1
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interrupts:
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maxItems: 1
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- aspeed,vhub-downstream-ports
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- aspeed,vhub-generic-endpoints
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if:
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properties:
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compatible:
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contains:
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const: aspeed,ast2700-usb-vhub
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then:
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required:
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- resets
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else:
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properties:
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resets: false
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additionalProperties: false
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examples:

‎Documentation/devicetree/bindings/usb/generic-ehci.yaml‎

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minItems: 1
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maxItems: 2
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dma-coherent: true
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interrupts:
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maxItems: 1
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‎Documentation/devicetree/bindings/usb/generic-ohci.yaml‎

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reg:
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maxItems: 1
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dma-coherent: true
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interrupts:
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maxItems: 1
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‎Documentation/devicetree/bindings/usb/google,lga-dwc3.yaml‎

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright (c) 2025, Google LLC
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/usb/google,lga-dwc3.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Google Tensor Series G5 (Laguna) DWC3 USB SoC Controller
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maintainers:
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- Roy Luo <royluo@google.com>
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description:
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Describes the DWC3 USB controller block implemented on Google Tensor SoCs,
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starting with the G5 generation (laguna). Based on Synopsys DWC3 IP, the
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controller features Dual-Role Device single port with hibernation add-on.
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properties:
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compatible:
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const: google,lga-dwc3
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reg:
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items:
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- description: Core DWC3 IP registers.
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interrupts:
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items:
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- description: Core DWC3 interrupt.
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- description: High speed power management event for remote wakeup.
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- description: Super speed power management event for remote wakeup.
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interrupt-names:
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items:
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- const: core
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- const: hs_pme
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- const: ss_pme
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clocks:
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items:
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- description: Non-sticky module clock.
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- description: Sticky module clock.
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clock-names:
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items:
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- const: non_sticky
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- const: sticky
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resets:
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items:
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- description: Non-sticky module reset.
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- description: Sticky module reset.
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- description: DRD bus reset.
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- description: Top-level reset.
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reset-names:
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items:
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- const: non_sticky
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- const: sticky
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- const: drd_bus
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- const: top
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power-domains:
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items:
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- description: Power switchable domain, the child of top domain.
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Turning it on puts the controller into full power state,
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turning it off puts the controller into power gated state.
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- description: Top domain, the parent of power switchable domain.
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Turning it on puts the controller into power gated state,
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turning it off completely shuts off the controller.
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power-domain-names:
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items:
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- const: psw
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- const: top
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iommus:
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maxItems: 1
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google,usb-cfg-csr:
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description:
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A phandle to a syscon node used to access the USB configuration
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registers. These registers are the top-level wrapper of the USB
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subsystem and provide control and status for the integrated USB
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controller and USB PHY.
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$ref: /schemas/types.yaml#/definitions/phandle-array
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items:
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- items:
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- description: phandle to the syscon node.
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- description: USB host controller configuration register offset.
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- description: USB custom interrrupts control register offset.
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required:
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- compatible
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- reg
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- interrupts
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- interrupt-names
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- clocks
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- clock-names
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- resets
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- reset-names
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- power-domains
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- power-domain-names
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- google,usb-cfg-csr
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allOf:
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- $ref: snps,dwc3-common.yaml#
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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soc {
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#address-cells = <2>;
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#size-cells = <2>;
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usb@c400000 {
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compatible = "google,lga-dwc3";
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reg = <0 0x0c400000 0 0xd060>;
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interrupts = <GIC_SPI 580 IRQ_TYPE_LEVEL_HIGH 0>,
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<GIC_SPI 597 IRQ_TYPE_LEVEL_HIGH 0>,
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<GIC_SPI 598 IRQ_TYPE_LEVEL_HIGH 0>;
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interrupt-names = "core", "hs_pme", "ss_pme";
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clocks = <&hsion_usbc_non_sticky_clk>, <&hsion_usbc_sticky_clk>;
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clock-names = "non_sticky", "sticky";
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resets = <&hsion_resets_usbc_non_sticky>, <&hsion_resets_usbc_sticky>,
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<&hsion_resets_usb_drd_bus>, <&hsion_resets_usb_top>;
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reset-names = "non_sticky", "sticky", "drd_bus", "top";
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power-domains = <&hsio_n_usb_psw>, <&hsio_n_usb>;
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power-domain-names = "psw", "top";
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phys = <&usb_phy 0>;
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phy-names = "usb2-phy";
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snps,quirk-frame-length-adjustment = <0x20>;
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snps,gfladj-refclk-lpm-sel-quirk;
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snps,incr-burst-type-adjustment = <4>;
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google,usb-cfg-csr = <&usb_cfg_csr 0x0 0x20>;
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};
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};
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...

‎Documentation/devicetree/bindings/usb/microchip,lan9691-dwc3.yaml‎

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/usb/microchip,lan9691-dwc3.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Microchip LAN969x SuperSpeed DWC3 USB SoC controller
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maintainers:
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- Robert Marko <robert.marko@sartura.hr>
11+
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select:
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properties:
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compatible:
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contains:
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enum:
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- microchip,lan9691-dwc3
18+
required:
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- compatible
20+
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properties:
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compatible:
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items:
24+
- enum:
25+
- microchip,lan9691-dwc3
26+
- const: snps,dwc3
27+
28+
reg:
29+
maxItems: 1
30+
31+
interrupts:
32+
maxItems: 1
33+
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clocks:
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items:
36+
- description: Gated USB DRD clock
37+
- description: Controller reference clock
38+
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clock-names:
40+
items:
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- const: bus_early
42+
- const: ref
43+
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unevaluatedProperties: false
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required:
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- compatible
48+
- reg
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- interrupts
50+
- clocks
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- clock-names
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allOf:
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- $ref: snps,dwc3.yaml#
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examples:
57+
- |
58+
#include <dt-bindings/interrupt-controller/arm-gic.h>
59+
60+
usb@300000 {
61+
compatible = "microchip,lan9691-dwc3", "snps,dwc3";
62+
reg = <0x300000 0x80000>;
63+
interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
64+
clocks = <&clks 12>, <&clks 11>;
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clock-names = "bus_early", "ref";
66+
};

‎Documentation/devicetree/bindings/usb/renesas,usbhs.yaml‎

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- renesas,usbhs-r9a07g044 # RZ/G2{L,LC}
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- renesas,usbhs-r9a07g054 # RZ/V2L
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- renesas,usbhs-r9a08g045 # RZ/G3S
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- renesas,usbhs-r9a09g047 # RZ/G3E
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- renesas,usbhs-r9a09g056 # RZ/V2N
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- renesas,usbhs-r9a09g057 # RZ/V2H(P)
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- const: renesas,rzg2l-usbhs

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