[PATCH 0/4] dm: core: Support same compatible in host/gadget musb drivers

[Mattijs Korpershoek]

On Wed, Jan 07, 2026 at 16:15, Mattijs Korpershoek <mkorpershoek at kernel.org> wrote:

> Hi Markus,
>
> On Wed, Jan 07, 2026 at 15:01, Mattijs Korpershoek <mkorpershoek at kernel.org> wrote:
>
>> Hi,
>>
>> On Wed, 26 Nov 2025 21:31:06 +0100, Markus Schneider-Pargmann (TI.com) wrote:
>>> musb currently uses a wrapper driver that binds on the parent device of
>>> the actual musb devices to manage the differentiation between gadget and
>>> host modes. However in the upstream devicetree this parent devicetree
>>> node can not be used to match the wrapper driver.
>>> 
>>> To be able to probe the musb devices in host/gadget mode directly, this
>>> series introduces support for returning -ENODEV in bind functions
>>> resulting in iterating the remaining drivers potentially binding to
>>> other drivers that match the compatible.
>>> 
>>> [...]
>>
>> Thanks, Applied to https://source.denx.de/u-boot/custodians/u-boot-dfu (u-boot-dfu)
>
> It seems this series broke the CI when testing sandbox:
> https://source.denx.de/u-boot/custodians/u-boot-dfu/-/jobs/1349214
>
> Can you have a look please?
>
> This can be reproduced locally using:
>
> $ ./test/py/test.py --bd sandbox --build -k test_bind
> [...]
> FAILED test/py/tests/test_bind.py::test_bind_unbind_with_node - AssertionError: assert 'Unable to bind. err:0' == ''
> FAILED test/py/tests/test_bind.py::test_bind_unbind_with_uclass - AssertionError: assert 2 == 1

We have discussed this on IRC (privately) and Markus has posted a v2
that should address the CI failures here:

https://lore.kernel.org/all/20260108-topic-musb-probing-v2026-01-v2-0-2a47c6e0e73a@baylibre.com/


>
>>
>> [1/4] dm: core: Support multiple drivers with same compatibles
>>       https://source.denx.de/u-boot/custodians/u-boot-dfu/-/commit/292d809159b86ff3c07e4fea93927cd0d00d8b27
>> [2/4] test: dm: Add compatible multimatch test
>>       https://source.denx.de/u-boot/custodians/u-boot-dfu/-/commit/b1f483a350a7df6130eb4880ecce4cfabfe5b9a9
>> [3/4] usb: musb-new: Relative ctrl_mod address parsing
>>       https://source.denx.de/u-boot/custodians/u-boot-dfu/-/commit/dce67e20709bd89f4ec17135e242447b5e6570d4
>> [4/4] usb: musb-new: Add compatibles for ti,musb-am33xx
>>       https://source.denx.de/u-boot/custodians/u-boot-dfu/-/commit/b51b489ae7c47d8372a6b73a4c0c5fa71291c4fd
>>
>> --
>> Mattijs