Linux: 4.14.0 and 4.15-rc2
SOC: H3
Driver: sun8i-h3-musb

I am trying to add 3 functions to a composite gadget and it fails.

[    4.664742] configfs-gadget gadget: acm/23b5a59a: can't bind, err -19
[    4.671227] configfs-gadget musb-hdrc.1.auto: failed to start g1: -19

The same configuration works on a am335x, and it also works in this
SOC when using just 1 or 3 functions, it just fails from 3.

Eg:
2x ACM - OK.
1x ACM + 1x Mass Storage works - OK.
3x ACM - ERROR
2x ACM + 1x Mass Storage - ERROR

Might this be a SOC limitation in some way? Hints were to start debugging?

Thanks,
Nuno Gonçalves
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