'ci_hdrc.0: failed to start' when using gadgetfs

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Hi,

I am using mx53 (which uses the chipidea driver) and it works fine with g_ether.

Now, I need to test gadgetfs and this is what I get:

$ modprobe gadgetfs
gadgetfs: USB Gadget filesystem, version 24 Aug 2004

$ mkdir  /dev/gadget
$ mount -t gadgetfs none /dev/gadget
nop ci_hdrc.0: failed to start (null): -120

This error message comes from:

ret = driver->bind(udc->gadget, driver);

inside udc_bind_to_driver() from udc_core.c

Any idea as to why driver->bind fails?

I will start debugging it, but would appreciate any suggestions.

Thanks,

Fabio Estevan
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