Re: [REGRESSION] mainline/master: PCI link creation fails on Apalis iMX6

[Thorsten Leemhuis <regressions@leemhuis.info>]

On 8/10/26 23:12, Francesco Dolcini wrote:
> On Mon, Aug 10, 2026 at 02:54:45PM -0300, Leonardo Costa wrote:
>> We are seeing a regression on Apalis iMX6 where connected PCI device
>> links fail to come up at initialization, as shown below. The issue is
>> not on the devices' physical connection, as they worked properly on v7.1
>> and are working on other stable kernel versions.
> 
> just to make this more clear.
> 
> 610fa91d9863 ("PCI: imx6: Assert PERST# before enabling regulators")
> introduced a regression that prevented the boot. because of that we were
> not able to run any of our test in our CI/CD
> 
> commit 7678e81498e2 ("PCI: imx6: Fix i.MX6Q/DL boot hang caused by improper PHY power sequencing")
> fixes the boot issue, but now PCIe is not longer working
Just wondering: what the status of this regression? I feel a bit lost here.

It looks like people were really keen on getting this resolved for 7.2
-- even multiple revert were considered, but not performed in the end
(not judging here, just mentioning it). Three days after the quoted mail
(and thus even before 7.2 was out) Richard Zhu posted a fix afaics:

https://lore.kernel.org/all/20260813095003.356062-1-hongxing.zhu@oss.nxp.com/

But that still sits on the list and did not even receive a tested-by. Is
it not that urgent anymore for some reason I cannot see? Are developers
waiting for test-results from affected people? Or did this fall through
the cracks?

Ciao, Thorsten