u-boot.git/drivers/usb/gadget/udc, branch master

usb: Return -ENOSYS when system call is not available

2021-04-06T04:33:19+00:00

Update usb_gadget_release() to use -ENOSYS, which is the correct error
code for U-Boot.

Signed-off-by: Simon Glass

dma-mapping: move dma_map_(un)single() to

2020-02-19T13:27:30+00:00

The implementation of dma_map_single() and dma_unmap_single() is
exactly the same for all the architectures that support them.

Factor them out to , and make all drivers to
include  instead of .

If we need to differentiate them for some architectures, we can
move the generic definitions to .

Add some comments to the helpers. The concept is quite similar to
the DMA-API of Linux kernel. Drivers are agnostic about what is
going on behind the scene. Just call dma_map_single() before the
DMA, and dma_unmap_single() after it.

Signed-off-by: Masahiro Yamada

dma-mapping: fix the prototype of dma_unmap_single()

2020-02-19T13:27:30+00:00

dma_unmap_single() takes the dma address, not virtual address.

Signed-off-by: Masahiro Yamada

dm: core: Create a new header file for 'compat' features

2020-02-06T02:33:46+00:00

At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass

dm: core: Require users of devres to include the header

2020-02-06T02:33:46+00:00

At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.

Signed-off-by: Simon Glass 
Reviewed-by: Anatolij Gustschin

usb: udc: Introduce ->udc_set_speed() method

2019-11-06T23:24:59+00:00

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.

Signed-off-by: Sherry Sun 
Signed-off-by: Vignesh Raghavendra

usb: udc-uclass: Fixed problem when no alias is defined in DT

2019-03-16T12:29:43+00:00

commit 801f1fa442 "dm: usb: udc: Use SEQ_ALIAS to index the USB gadget
ports" changed the way the udevice if found. It uses the alias to find
a udevice for a given USB port number. In the commit log it was stated
that if no alias is provided, the bind order will be used instead. However
it doesn't work. Fixing this by adding a call to uclass_get_device() if
uclass_get_device_by_seq() fails.

Signed-off-by: Jean-Jacques Hiblot 
Tested-by: Vignesh R

dm: usb: gadget: Fix boot breakage on sunxi platforms

2019-01-10T17:53:03+00:00

Fixes commit 013116243950 ("dm: usb: create a new UCLASS ID for USB gadget
devices")

The UCLASS_DRIVER for id UCLASS_USB_GADGET_GENERIC needs to be declared
even for platforms that do not enable DM_USB_GADGET. Otherwise the driver
for their usb peripheral controller fails to bind.

Reported-by: Priit Laes 
Reported-by: Jagan Teki 
Signed-off-by: Jean-Jacques Hiblot 
Tested-by: Priit Laes 
Acked-by: Jagan Teki

dm: usb: udc: Use SEQ_ALIAS to index the USB gadget ports

2019-01-10T17:52:51+00:00

dfu, fastbot and other usb gadget commands take the USB port index as a
parameter. Currently this index is assigned in the order of the driver
bindings.
Changing this behavior using the SEQ_ALIAS feature. This option assign to
the device a SEQ number based on its alias (if it exists)

To use it we must set the DM_UC_FLAG_SEQ_ALIAS flag and follow the existing
naming convention: use "usb" for the name of the gadget UCLASS_DRIVER
(same as for the UCLASS_USB).

If no alias is provided, then the index falls back to the order in which
the bindings took place.

Signed-off-by: Jean-Jacques Hiblot 
Reported-by: Sam Protsenko 
Reviewed-by: Sam Protsenko 
Tested-by: Sam Protsenko

dm: usb: create a new UCLASS ID for USB gadget devices

2018-12-07T15:31:45+00:00

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.

Signed-off-by: Jean-Jacques Hiblot