[PATCH] usb: dwc3-generic: Fix build errors when USB_DWC3_GADGET is disabled

[Mattijs Korpershoek]

Hi Jonas,

On sam., mars 02, 2024 at 14:00, Jonas Karlman <jonas at kwiboo.se> wrote:

[...]

>> 
>> I will keep you posted.
>
> Thanks, much appreciated!
>
> Please also keep in mind that changing the interrupt handling probably
> only fixes the second of the two build errors reported and fixed by this
> patch.
>
> Trying to build with following will trigger the first build error, and
> should not change because use of dm_usb_gadget_handle_interrupts() is
> reworked.
>
> CONFIG_DM_USB_GADGET=y
> CONFIG_USB_DWC3=y
> # CONFIG_USB_DWC3_GADGET is not set
> CONFIG_USB_DWC3_GENERIC=y
> CONFIG_USB_GADGET=y
>
> E.g to only include host part of dwc3 and gadget from another driver,
> to i.e. save on binary size, produce following build error:
>
> aarch64-linux-gnu-ld.bfd: drivers/usb/dwc3/dwc3-generic.o: in function `dm_usb_gadget_handle_interrupts':
> drivers/usb/dwc3/dwc3-generic.c:201:(.text.dm_usb_gadget_handle_interrupts+0x10):
>   undefined reference to `dwc3_gadget_uboot_handle_interrupt'
>
> I guess force select USB_DWC3_GADGET for USB_DWC3_GENERIC would make
> that build error disappear, and increase binary size as a result.
>
> For my RK3328 series [1] I will just revert to use USB_XHCI_DWC3 instead
> of using USB_DWC3_GENERIC on boards that enable peripheral use of otg
> port.
>
> [1] https://patchwork.ozlabs.org/patch/1904779/

Marek ended up doing this rework.
It's available for review here, if you want to have a look:
https://lore.kernel.org/all/20240614005309.34433-1-marek.vasut+renesas@mailbox.org/

>
> Regards,
> Jonas
>
>> 
>>>

[...]