Hi, Felipe Balbi <balbi@xxxxxx> writes: > Felipe Balbi <balbi@xxxxxx> writes: >> Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> writes: >>> Hello, >>> >>> This is a resurrection of the patches initially submitted by Ruslan >>> Bilovol in the following thread: https://lkml.org/lkml/2015/6/22/554 >>> >>> The changes since the original submission (v5) includes rebase onto >>> latest linux-next branch, simplification of the code requested by Alan >>> Stern and Felipe Balbi, removal of a patch, which deleted __init/__exit >>> attributes (this change has been already merged) and fixes of the >>> checkpatch issues. >>> >>> This feature is urgently needed, because it is not longer possible to >>> use workaround to avoid deferred probe in UDC drivers due to >>> not-yet-probed i2c regulator drivers (for more information see >>> https://lkml.org/lkml/2015/10/30/374 ). >>> >>> This patchset has been successfully tested on Odroid XU3 boards with >>> DWC3 UDC driver being deferred by missing regulator drivers. >> >> there is one problem with this patchset. If I try to statically link >> gadget drivers, only one can be chosen, even though I can enable both >> dwc3 and dummy_hcd just fine. And, actually, this brings another >> problem. How do we handle systems which have 2 USB peripheral >> controllers (say, 2 instances of dwc3) and choose which gadget driver >> will bind to which controller ? > > We also seem to have issues with Kconfig. If I try to make gadget driver > built-in, when compiling I'll get asked again if I want gadget drivers > built-in. > > Another one: I just tried dummy_hcd built-in, g_zero built-in, dwc3 as a > module. I can never load anything to dwc3 ;-) In all fairness, none of these are regressions. Can we agree to look at these during v4.5-rc so maybe v4.6 has a final solution ? cheers -- balbi
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