On Wed, Sep 7, 2016 at 6:44 PM, Hans de Goede <hdego...@redhat.com> wrote: > Hi, > > On 06-09-16 17:31, wens Tsai wrote: >> >> On Tue, Sep 6, 2016 at 7:28 PM, Hans de Goede <hdego...@redhat.com> wrote: >>> >>> Hi, >>> >>> On 06-09-16 13:02, wens Tsai wrote: >>>> >>>> >>>> Hi Hans, >>>> >>>> I've built the latest sunxi-next branches of Linux and U-boot and >>>> tried it on my Q8 A23 tablet. My tablet has an OTG adapter with a >>>> USB ethernet adapter connected all the time. Upon booting into >>>> Linux I get an endless stream of: >>>> >>>> musb_bus_suspend 2586: trying to suspend as a_wait_bcon while active >>>> >>>> messages. To get out of this I have to physically remove the OTG >>>> adapter. Booting without the OTG adapter to begin with also gets >>>> rid of the problem. >>>> >>>> Have you run into this problem? I wonder if we should disable VBUS >>>> just before leaving U-boot? Now that we support DRIVEVBUS this >>>> shouldn't be a problem. >>> >>> >>> >>> I've not seen such a problem. I'm fine with disabling Vbus when >>> leaving u-boot, that certainly is the safe thing to do anyways. >> >> >> Seems there's no distinction between "USB reset" and leaving >> U-boot, as you mentioned in your patch removing the "power off" >> code from the USB drivers. Are you OK with power cycling during >> USB reset as well? > > > I would prefer not too, but if it is hard to get around that > I can live with it.
Unfortunately musb USB reset does not work. I tested without my patch (the one I sent out today). So I think this point is irrelevant, at least until someone fixes musb. ChenYu >> >>> I guess I'll get a u-boot patch from you if that indeed fixes >>> things ? >> >> >> Yup. In progress. Though my ethernet adapter is acting up, so I'll >> need to swap in something else to test it properly. > > > Cool. > > Thanks & Regards, > > Hans -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
