On Wed, 7 Feb 2018 14:37:00 -0600 Bin Liu <b-liu@xxxxxx> wrote: > On Tue, Feb 06, 2018 at 08:00:24PM +0100, Andreas Kemnade wrote: > > Hi, > > > > On Tue, 6 Feb 2018 12:46:05 -0600 > > Bin Liu <b-liu@xxxxxx> wrote: > > > > > Hi, > > > > > > On Sat, Jan 27, 2018 at 09:34:03AM +0100, Andreas Kemnade wrote: > > > > On dm3730 there are enumeration problems after resume. > > > > Investigation led to the cause that the MUSB_POWER_SOFTCONN > > > > bit is not set. If it was set before suspend (because it > > > > was enabled via musb_pullup()), it is set in > > > > musb_restore_context() so the pullup is enabled. But then > > > > musb_start() is called which overwrites MUSB_POWER and > > > > therefore disables MUSB_POWER_SOFTCONN, so no pullup is > > > > enabled and the device is not enumerated. > > > > > > Do you see the issue with the v4.15? > > > > > Yes. Tested without other patches. > > It was also there in earlier kernels but I had not had motivation enough > > to debug. > > Applied to my tree. Thanks. > > > So maybe it deserves a CC: Stable > > I would prefer it is first tested on each stable tree. > Tested with 4.16-rc1 with and without that patch The problem still exists and can be fixed by that patch. Regards, Andreas
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