drivers/usb/dwc3/Kconfig

Source file repositories/reference/linux-study-clean/drivers/usb/dwc3/Kconfig

File Facts

System
Linux kernel
Corpus path
drivers/usb/dwc3/Kconfig
Extension
[no extension]
Size
7200 bytes
Lines
238
Domain
Driver Families
Bucket
drivers/usb
Inferred role
Driver Families: build/configuration rule
Status
atlas-only

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0

config USB_DWC3
	tristate "DesignWare USB3 DRD Core Support"
	depends on (USB || USB_GADGET) && HAS_DMA
	depends on (EXTCON || EXTCON=n)
	select USB_XHCI_PLATFORM if USB_XHCI_HCD
	select USB_ROLE_SWITCH if USB_DWC3_DUAL_ROLE
	help
	  Say Y or M here if your system has a Dual Role SuperSpeed
	  USB controller based on the DesignWare USB3 IP Core.

	  If you choose to build this driver as a dynamically linked
	  module, the module will be called dwc3.ko.

if USB_DWC3

config USB_DWC3_ULPI
	bool "Register ULPI PHY Interface"
	depends on USB_ULPI_BUS=y || USB_ULPI_BUS=USB_DWC3
	help
	  Select this if you have ULPI type PHY attached to your DWC3
	  controller.

choice
	prompt "DWC3 Mode Selection"
	default USB_DWC3_DUAL_ROLE if (USB && USB_GADGET)
	default USB_DWC3_HOST if (USB && !USB_GADGET)
	default USB_DWC3_GADGET if (!USB && USB_GADGET)

config USB_DWC3_HOST
	bool "Host only mode"
	depends on USB=y || USB=USB_DWC3
	help
	  Select this when you want to use DWC3 in host mode only,
	  thereby the gadget feature will be regressed.

config USB_DWC3_GADGET
	bool "Gadget only mode"
	depends on USB_GADGET=y || USB_GADGET=USB_DWC3
	help
	  Select this when you want to use DWC3 in gadget mode only,
	  thereby the host feature will be regressed.

config USB_DWC3_DUAL_ROLE
	bool "Dual Role mode"
	depends on ((USB=y || USB=USB_DWC3) && (USB_GADGET=y || USB_GADGET=USB_DWC3))
	help
	  This is the default mode of working of DWC3 controller where
	  both host and gadget features are enabled.

endchoice

comment "Platform Glue Driver Support"

config USB_DWC3_OMAP
	tristate "Texas Instruments OMAP5 and similar Platforms"
	depends on ARCH_OMAP2PLUS || COMPILE_TEST
	depends on EXTCON || !EXTCON
	depends on OF
	default USB_DWC3
	help
	  Some platforms from Texas Instruments like OMAP5, DRA7xxx and
	  AM437x use this IP for USB2/3 functionality.

	  Say 'Y' or 'M' here if you have one such device

config USB_DWC3_EXYNOS
	tristate "Samsung Exynos SoC Platform"
	depends on (ARCH_EXYNOS || COMPILE_TEST) && OF

Annotation

Implementation Notes