u-boot.git/drivers/usb, branch v2023.10

usb: dwc3: Fix enabling USB_DR_MODE_HOST

2023-09-04T13:51:38+00:00

The original logic always enables USB_DR_MODE_HOST operation mode in
dwc3_layerscape_bind() in u-boot. Prevent choosing USB_DR_MODE_HOST
operation mode if USB_HOST is not enabled.

Fixes: 2b0b51d0bed ("usb: dwc3: add layerscape support")
Signed-off-by: Oleksandr Suvorov

usb: dwc3: Fix renaming SPL_USB_HOST_SUPPORT to SPL_USB_HOST

2023-09-04T13:51:38+00:00

In the usb/dwc3-layerscape driver the first option should be renamed
to the latter as well. Do it.

Fix original logic in dwc3_layerscape_bind() - do not enable

Fixes: 333e4a621df ("Rename SPL_USB_HOST_SUPPORT to SPL_USB_HOST")
Signed-off-by: Oleksandr Suvorov

usb: dwc3: Fix remove function if there is no ulpi_reset gpio

2023-08-25T00:35:40+00:00

As ulpi_reset gpio is now optional, we need to check it when doing
the 'dwc3_generic_remove' function. Check if it is declared before
accessing the ulpi_reset.

Fixes: 237d1f60b1d ("usb: dwc3: Use the devm_gpiod_get_optional()
		     API for reset gpio")

Reported-by: Thomas Nizan 
Signed-off-by: Venkatesh Yadav Abbarapu

usb: Return -ENOENT when no devices are found

2023-08-09T15:31:11+00:00

When USB finds no devices it currently returns -EPERM which bootstd does
not understand. This causes other bootdevs of the same priority to be
skipped.

Fix this by returning the correct error code.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng

usb: gadget: ether: Handle gadget driver registration in probe and remove

2023-08-05T04:02:28+00:00

Move the ethernet gadget driver registration and removal from ethernet
bind and unbind callbacks into driver DM probe and remove callbacks.
This way, when the driver is bound, which is triggered deliberately
using 'bind' command, the USB ethernet gadget driver is instantiated
and bound to the matching UDC. In reverse, when the driver is unbound,
which is again triggered deliberately using 'unbind' command, the USB
ethernet gadget driver instance is removed.

Effectively, this now behaves like running either 'ums' or 'dfu' or
any other commands utilizing USB gadget functionality.

This also drops use of usb_gadget_release() and moves the use of
usb_gadget_initialize() into usb_ether_init() used only by legacy
platforms that do not use 'bind' command properly yet. Those have
no place in drivers.

Signed-off-by: Marek Vasut 
Tested-by: Tom Rini 
Reviewed-by: Tom Rini

usb: gadget: ether: Move probe function above driver structure

2023-08-05T04:02:28+00:00

Move the driver probe function above the driver structure, so it
can be placed alongside other related functions, like upcoming
remove function. No functional change.

Signed-off-by: Marek Vasut 
Tested-by: Tom Rini 
Tested-by: Miquel Raynal 
Tested-by: Miquel Raynal 
Reviewed-by: Tom Rini

usb: gadget: ether: Inline functions used once

2023-08-05T04:02:28+00:00

These functions here are only ever called once since drop of non-DM
networking code. Inline them. No functional change.

Signed-off-by: Marek Vasut 
Tested-by: Tom Rini 
Tested-by: Miquel Raynal 
Reviewed-by: Tom Rini

usb: dwc3-generic: Restrict single ctrl node for RK3328

2023-07-31T12:33:18+00:00

Like Rockchip RK3568, the RK3328 also have single node to
represent the glue and ctrl for USB 3.0.

So, use the driver data to use single ctrl for RK3328 DWC3.

Reviewed-by: Marek Vasut 
Signed-off-by: Jagan Teki 
Reviewed-by: Kever Yang

usb: dwc3-generic: Add rk3568 support

2023-07-31T06:40:38+00:00

RK3568 share glue and ctrl in a single node. Use glue_get_ctrl_dev to
return the glue node as the ctrl node.

Signed-off-by: Jonas Karlman 
Reviewed-by: Jagan Teki 
Reviewed-by: Marek Vasut

usb: dwc3-generic: Relax unsupported dr_mode check

2023-07-31T06:40:38+00:00

When dr_mode is peripheral or otg and U-Boot has not been built with
DM_USB_GADGET support, booting such device may end up with:

  dwc3_glue_bind_common: subnode name: usb@fcc00000
  Error binding driver 'dwc3-generic-wrapper': -6
  Some drivers failed to bind
  initcall sequence 00000000effbca08 failed at call 0000000000a217c8 (err=-6)
  ### ERROR ### Please RESET the board ###

Instead fail gracfully with ENODEV to allow board continue booting.

  dwc3_glue_bind_common: subnode name: usb@fcc00000
  dwc3_glue_bind_common: unsupported dr_mode 3

Also use CONFIG_IS_ENABLED(USB_HOST) and change switch to if statements
to improve readability of the code.

Fixes: 446e3a205b87 ("dwc3-generic: Handle the PHYs, the clocks and the reset lines")
Signed-off-by: Jonas Karlman 
Reviewed-by: Marek Vasut