On Fri, May 05, 2023 at 11:23:51AM +0200, Luca Ceresoli wrote:

On Thu, 4 May 2023 18:50:14 +0200
Francesco Dolcini [off-list ref] wrote:

quoted

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:

quoted

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

quoted

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@francesco-nb.int.toradex.com/ (local)

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


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel