* Tony Lindgren <tony@xxxxxxxxxxx> [151022 11:03]:
> * Tony Lindgren <tony@xxxxxxxxxxx> [151021 16:44]:
> > Hi all,
> >
> > I noticed a regresssino in v4.3-rc series to day with MUSB gadgets
> > and DMA. Doing a git bisect between v4.2..v4.3-rc1 on it pointed to:
> >
> > ddef08dd00f5 ("Driver core: wakeup the parent device before trying probe")
> >
> > With the commit above reverted things work fine with DMA and USB gadgets.
> >
> > This is on omap3 with CONFIG_USB_INVENTRA_DMA selected. Selecting
> > CONFIG_MUSB_PIO_ONLY still works even without reverting ddef08dd00f5.
> >
> > Anybody got ideas what might be wrong? Some wrong runtime PM usage
> > under drivers/usb/musb?
>
> Here's some more debug info on where things are different initializing
> the USB gadgets. I added some printks and diffed the dmesg output. The
> added calls from commit ddef08dd00f5 start with dd:
Well turns out the problem actually happens earlier. We end up calling
omap2430_runtime_resume with NULL struct musb while EPROBE_DEFER
probing.
No ideas yet how it should be fixed though.
Regards,
Tony
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