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As dwc2 pci module is now exporting dwc2 platform device, include
platform.o in dwc2-y and remove USB_DWC2_PLATFORM configuration
option. Driver will be built as two modules, dwc2.ko and dwc2_pci.ko.
dwc2.ko is the new platform driver.
Remove all EXPORT_SYMBOL_GPL as they are not needed any more.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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The dwc2-pci driver requires the generic PHY. This fixes undefined
reference issues when it is not selected.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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The pci driver now registers a platform driver, like in dwc3, and lets
its probe function do all the initialization. This allows it to
account for changes to the platform driver that were not added to the
pci driver. Also future changes to the probe function don't have to be
duplicated. This also has the effect of adding device and DRD mode to
the pci driver. Tested on the Synopsys HAPS PCIe platform.
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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It is currently possible to configure the dwc2 driver as built-in
when host mode or dual-role is enabled, but the USB core is
a loadable module. This leads to a link failure:
drivers/built-in.o: In function `_dwc2_hcd_start':
:(.text+0x84538): undefined reference to `usb_hcd_resume_root_hub'
drivers/built-in.o: In function `_dwc2_hcd_urb_dequeue':
:(.text+0x84aa0): undefined reference to `usb_hcd_check_unlink_urb'
:(.text+0x84e4c): undefined reference to `usb_hcd_unlink_urb_from_ep'
:(.text+0x84e74): undefined reference to `usb_hcd_giveback_urb'
drivers/built-in.o: In function `dwc2_assign_and_init_hc':
:(.text+0x86b98): undefined reference to `usb_hcd_unmap_urb_for_dma'
drivers/built-in.o: In function `_dwc2_hcd_urb_enqueue':
:(.text+0x8717c): undefined reference to `usb_hcd_link_urb_to_ep'
:(.text+0x872f4): undefined reference to `usb_hcd_unlink_urb_from_ep'
drivers/built-in.o: In function `dwc2_host_complete':
:(.text+0x875d4): undefined reference to `usb_hcd_unlink_urb_from_ep'
:(.text+0x87600): undefined reference to `usb_hcd_giveback_urb'
drivers/built-in.o: In function `dwc2_hcd_init':
:(.text+0x87ba8): undefined reference to `usb_disabled'
:(.text+0x87d38): undefined reference to `usb_create_hcd'
:(.text+0x88094): undefined reference to `usb_add_hcd'
:(.text+0x880dc): undefined reference to `usb_put_hcd'
drivers/built-in.o: In function `dwc2_hcd_remove':
:(.text+0x8821c): undefined reference to `usb_remove_hcd'
:(.text+0x8823c): undefined reference to `usb_put_hcd'
drivers/built-in.o: In function `dwc2_hc_handle_tt_clear.isra.10':
:(.text+0x88e2c): undefined reference to `usb_hub_clear_tt_buffer'
drivers/built-in.o: In function `dwc2_hcd_qtd_add':
:(.text+0x8b554): undefined reference to `usb_calc_bus_time'
To fix the problem, this patch changes the dependencies so that
dwc2 host mode can only be enabled if either the USB core is
built-in or both USB and dwc2 are modules.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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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, dwc2.ko is built for host,
peripheral, and dual-role mode. The PCI bus interface will be called
dwc2_pci.ko and the platform interface module will be called dwc2_platform.ko.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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This patch allows the gadget portion of the DWC2 driver to get built when
(!USB && USB_GADGET) condition is encountered.
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Moves the s3c-hsotg driver into the dwc2 directory and uses the
dwc2 defines in hw.h. Renames s3c-hsotg.c to gadget.c.
NOTE: You can build both host and peripheral as a dynamically
linked module, but be aware that if you insmod dwc2_gadget, then
rmmod it, then insmod dwc2 and dwc2_platform for host mode, this
will not work. As the step to rmmod dwc2_gadget.ko will turn off
the clock to the USB IP. The dwc2 host driver currently does not
look to turn on a clock yet. A patch to fix that will be coming
soon.
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
[ jh,rb - For gadget part only: ]
Tested-by: Jingoo Han <jg1.han@samsung.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
[ pz: Folded Kconfig/Makefile changes, which were originally in
a separate patch, into this one, to avoid a build breakage.
Modified Kconfig/Makefile changes a bit. Tested host part only. ]
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The DWC2 driver should now be in good enough shape to move out of
staging. I have stress tested it overnight on RPI running mass
storage and Ethernet transfers in parallel, and for several days
on our proprietary PCI-based platform.
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Mian Yousaf Kaukab
John Youn
Arnd Bergmann
Dinh Nguyen
Dinh Nguyen
Paul Zimmerman