On Fri, Jun 13, 2025 at 16:45, Zixun LI <ad...@hifiphile.com> wrote: > On Fri, Jun 13, 2025 at 11:22 AM Mattijs Korpershoek > <mkorpersh...@kernel.org> wrote: >> >> >> Mihai, Zixun, do you have any update on case No.01589331 ? >> >> I'd like to pick this up and some point so please keep me informed. >> >> Thank you >> Mattijs >> > > Hi Mattijs, > > The case was reported in early May and MCHP have also observed the > missing of detach event on host. > > My latest measure shows a differential signal level about +-350mV > between DP&DM lines when > DETACH and PULLD_DIS bits are 1, much lower than the detachment > threshold of 625mV from > USB 2.0 specification Table 7.3. > > From my view the patch can be picked, even on an unaffected family it > won't have side effects. > Unless one day we decide to implement SAM9RL and SAM9G45 errata then > it needs to be retested.
Ok, I will apply it. Since it's a bit late in the release cycle, I'll send this out for -next. Thanks again for your contribution! Mattijs > > Best Regards, > Zixun
