drivers/usb/musb/Kconfig

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

File Facts

System
Linux kernel
Corpus path
drivers/usb/musb/Kconfig
Extension
[no extension]
Size
4533 bytes
Lines
168
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
#
# USB Dual Role (OTG-ready) Controller Drivers
# for silicon based on Mentor Graphics INVENTRA designs
#

# (M)HDRC = (Multipoint) Highspeed Dual-Role Controller
config USB_MUSB_HDRC
	tristate 'Inventra Highspeed Dual Role Controller'
	depends on (USB || USB_GADGET)
	depends on HAS_IOMEM
	help
	  Say Y here if your system has a dual role high speed USB
	  controller based on the Mentor Graphics silicon IP.  Then
	  configure options to match your silicon and the board
	  it's being used with, including the USB peripheral role,
	  or the USB host role, or both.

	  Texas Instruments families using this IP include DaVinci
	  (35x, 644x ...), OMAP 243x, OMAP 3, and TUSB 6010.

	  Allwinner SoCs using this IP include A10, A13, A20, ...

	  If you do not know what this is, please say N.

	  To compile this driver as a module, choose M here; the
	  module will be called "musb-hdrc".

if USB_MUSB_HDRC

choice
	prompt "MUSB Mode Selection"
	default USB_MUSB_DUAL_ROLE if (USB && USB_GADGET)
	default USB_MUSB_HOST if (USB && !USB_GADGET)
	default USB_MUSB_GADGET if (!USB && USB_GADGET)

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

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

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

endchoice

comment "Platform Glue Layer"

config USB_MUSB_SUNXI
	tristate "Allwinner (sunxi)"
	depends on ARCH_SUNXI
	depends on NOP_USB_XCEIV
	depends on PHY_SUN4I_USB
	depends on EXTCON
	select GENERIC_PHY

Annotation

Implementation Notes