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Commit e006fee6 authored by Dinh Nguyen's avatar Dinh Nguyen Committed by Greg Kroah-Hartman
Browse files

usb: dwc2: Update Kconfig to support dual-role 



Update DWC2 kconfig and makefile to support dual-role mode. The platform
file will always get compiled for the case where the controller is directly
connected to the CPU. So for loadable modules, only dwc2.ko is needed.

Signed-off-by: default avatarDinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: default avatarPaul Zimmerman <paulz@synopsys.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c0155b9d

drivers/usb/dwc2/Kconfig

+36 −27
Original line number Diff line number Diff line 
config USB_DWC2

	bool "DesignWare USB2 DRD Core Support"

	tristate "DesignWare USB2 DRD Core Support"

	depends on USB

	help

	  Say Y here if your system has a Dual Role Hi-Speed USB

	  controller based on the DesignWare HSOTG IP Core.



	  For host mode, if you choose to build the driver as dynamically

	  linked modules, the core module will be called dwc2.ko, the PCI

	  bus interface module (if you have a PCI bus system) will be

	  called dwc2_pci.ko, and the platform interface module (for

	  controllers directly connected to the CPU) will be called

	  dwc2_platform.ko. For gadget mode, there will be a single

	  module called dwc2_gadget.ko.



	  NOTE: The s3c-hsotg driver is now renamed to dwc2_gadget. The

	  host and gadget drivers are still currently separate drivers.

	  There are plans to merge the dwc2_gadget driver with the dwc2

	  host driver in the near future to create a dual-role driver.

	  If you choose to build the driver as dynamically

	  linked modules, a single dwc2.ko(regardless of mode of operation)

	  will get built for both platform IPs and PCI.



if USB_DWC2



choice

	bool "DWC2 Mode Selection"

	default USB_DWC2_DUAL_ROLE if (USB && USB_GADGET)

	default USB_DWC2_HOST if (USB && !USB_GADGET)

	default USB_DWC2_PERIPHERAL if (!USB && USB_GADGET)



config USB_DWC2_HOST

	tristate "Host only mode"

	bool "Host only mode"

	depends on USB

	help

	  The Designware USB2.0 high-speed host controller

	  integrated into many SoCs.



config USB_DWC2_PLATFORM

	bool "DWC2 Platform"

	depends on USB_DWC2_HOST

	default USB_DWC2_HOST

	help

	  The Designware USB2.0 platform interface module for

	  controllers directly connected to the CPU. This is only

	  used for host mode.

	  integrated into many SoCs. Select this option if you want the

	  driver to operate in Host-only mode.



config USB_DWC2_PCI

	bool "DWC2 PCI"
@@ -47,11 +36,31 @@ config USB_DWC2_PCI 
comment "Gadget mode requires USB Gadget support to be enabled"



config USB_DWC2_PERIPHERAL

	tristate "Gadget only mode"

	depends on USB_GADGET

	bool "Gadget only mode"

	depends on USB_GADGET=y || USB_GADGET=USB_DWC2

	help

	  The Designware USB2.0 high-speed gadget controller

	  integrated into many SoCs.

	  integrated into many SoCs. Select this option if you want the

	  driver to operate in Peripheral-only mode. This option requires

	  USB_GADGET=y.



config USB_DWC2_DUAL_ROLE

	bool "Dual Role mode"

	depends on ((USB=y || USB=USB_DWC2) && (USB_GADGET=y || USB_GADGET=USB_DWC2))

	help

	  Select this option if you want the driver to work in a dual-role

	  mode. In this mode both host and gadget features are enabled, and

	  the role will be determined by the cable that gets plugged-in. This

	  option requires USB_GADGET=y.

endchoice



config USB_DWC2_PLATFORM

	bool

        depends on !PCI

        default y

        help

          The Designware USB2.0 platform interface module for

          controllers directly connected to the CPU.



config USB_DWC2_DEBUG

	bool "Enable Debugging Messages"

drivers/usb/dwc2/Makefile

+11 −10
Original line number Diff line number Diff line 
ccflags-$(CONFIG_USB_DWC2_DEBUG)	+= -DDEBUG

ccflags-$(CONFIG_USB_DWC2_VERBOSE)	+= -DVERBOSE_DEBUG



obj-$(CONFIG_USB_DWC2_HOST)		+= dwc2.o

obj-$(CONFIG_USB_DWC2)			+= dwc2.o

dwc2-y					:= core.o core_intr.o



ifneq ($(filter y,$(CONFIG_USB_DWC2_HOST) $(CONFIG_USB_DWC2_DUAL_ROLE)),)

	dwc2-y				+= hcd.o hcd_intr.o

	dwc2-y				+= hcd_queue.o hcd_ddma.o

endif



ifneq ($(filter y,$(CONFIG_USB_DWC2_PERIPHERAL) $(CONFIG_USB_DWC2_DUAL_ROLE)),)

	dwc2-y       			+= gadget.o

endif



# NOTE: The previous s3c-hsotg peripheral mode only driver has been moved to

# this location and renamed gadget.c. When building for dynamically linked
@@ -19,10 +26,4 @@ ifneq ($(CONFIG_USB_DWC2_PCI),) 
	dwc2_pci-y			:= pci.o

endif



ifneq ($(CONFIG_USB_DWC2_PLATFORM),)

	obj-$(CONFIG_USB_DWC2_HOST)	+= dwc2_platform.o

	dwc2_platform-y			:= platform.o

endif



obj-$(CONFIG_USB_DWC2_PERIPHERAL)	+= dwc2_gadget.o

dwc2_gadget-y				:= gadget.o
 
dwc2-$(CONFIG_USB_DWC2_PLATFORM) += platform.o