On Fri, May 05, 2023 at 11:23:51AM +0200, Luca Ceresoli wrote: > On Thu, 4 May 2023 18:50:14 +0200 > Francesco Dolcini <francesco@xxxxxxxxxx> wrote: > > > Hello Luca, > > I guess your mail to Philippe bounced, let me try to answer since I am aware > > of the issue here. > > > > On Thu, May 04, 2023 at 06:23:12PM +0200, Luca Ceresoli wrote: > > > I found this thread after several hours spent in debugging why USB host is > > > not detecting new devices on a custom board using the iMX6ULL Colibri > > > SoM. > > > > > > My best workaround at the moment is: > > We have the same workaround in our BSP since quite some time, see > > https://git.toradex.com/cgit/meta-toradex-bsp-common.git/tree/recipes-kernel/linux/linux-toradex-mainline-git/0002-drivers-chipidea-disable-runtime-pm-for-imx6ul.patch > > > > > I haven't found any follow-up patches from you, so I'm wondering whether > > > you have made any progress on this issue. > > You can find the latest discussion on that regard here > > https://lore.kernel.org/all/Y1vLpaxpc5WBCuGD@xxxxxxxxxxxxxxxxxxxxxxxxxxxx/ > > Thanks for this pointer! I have read the discussion and it was a bit > confusing, especially about whether the hardware can work at all. It can work. Hardware wise is just fine, software wise I tried to explain how in my previous answer to you. Worst case we would have to describe the hardware in a different way in the DTS, but I do not expect this to be required. > Are you planning to continue on that work? Hopefully NXP / Li Jun will be able to help. Francesco