On Mon, Jun 16, 2025 at 09:24, Mattijs Korpershoek <[email protected]> wrote:
> On Fri, Jun 13, 2025 at 16:45, Zixun LI <[email protected]> wrote: > >> On Fri, Jun 13, 2025 at 11:22 AM Mattijs Korpershoek >> <[email protected]> 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. Zixun, before applying the patch, I'd like to add the comment I suggested in the code [1] as well. Do you you have any objections on that? PLease let me know [1] https://lore.kernel.org/all/[email protected]/ > > Thanks again for your contribution! > > Mattijs > >> >> Best Regards, >> Zixun
