This patch was copied from kernel commit: 67fdfda4a99ed.
Sometimes, the gadget driver we want to run has max_speed lower than
what the UDC supports. In such situations, UDC might want to make sure
we don't try to connect on speeds not supported by the gadget
driver because that will just fail.
So here introduce a new optional ->udc_set_speed() method which can be
implemented by interested UDC drivers to achieve this purpose.
Change-Id: I8ce57970c9095a92553ee12520e3724bd029d6b6
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit 8d94e184ffdef48b40942c12d9e7b0290e60a1ef)
UCLASS_USB_DEV_GENERIC was meant for USB devices connected to host
controllers, not gadget devices.
Adding a new UCLASS for gadget devices alone.
Also move the generic DM code for USB gadgets in a separate file for
clarity.
Conflicts:
board/sunxi/board.c
Change-Id: I9bd01ad0814b81f7718927660a8ece4080c5f988
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit 0131162439508801b9f8a330fa731f04273c9337)
When DM_USB_GADGET the platform code for the USB device must be replaced by
calls to a USB device driver.
usb_gadget_initialize() probes the USB device driver.
usb_gadget_release() removes the USB device driver.
Change-Id: I759a0d192d4baafeb188cfad4b3a08b5d2d05c23
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit ff8d75583487eb69bcb6f036088d979c76db3753)
Cast u32 bit value to 64bit before recasting to 64bit pointer to avoid
pointer from integer cast size mismatch warnings.
Warning log:
+../drivers/usb/gadget/udc/udc-core.c: In function
‘usb_gadget_unmap_request’:
+../drivers/usb/gadget/udc/udc-core.c:68:19: warning: cast to pointer
from integer of different size [-Wint-to-pointer-cast]
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Make udc-core compile in u-boot by removing all linux specific
stuff and having only the bare minimal udc-core required for
usb gadget drivers. Also modified the file header to a format that is
generally being used in u-boot.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Added udc-core.c from linux kernel 3.19-rc1 (97bf6af1f9) to u-boot.
This will be adapted to work with u-boot in the
following patches.
Adding support for udc will help to seamlessly port dwc3 driver from
linux kernel to u-boot (since dwc3 uses udc-core) and it'll also help
to add support for multiple gadget controllers to be functional at the
same time.
All other gadget drivers can also be adapted to use udc-core.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Sherry Sun
Jean-Jacques Hiblot
Michal Simek
Kishon Vijay Abraham I