Re: [Bug 219513] New: PCIe drivers do not bind

[Dullfire <dullfire@yahoo.com>]

On 11/19/24 08:16, Bartosz Golaszewski wrote:
> On Tue, 19 Nov 2024 at 15:04, Bjorn Helgaas <helgaas@kernel.org> wrote:
>>
>> On Tue, Nov 19, 2024 at 12:55:36PM +0000, bugzilla-daemon@kernel.org wrote:
>>> https://bugzilla.kernel.org/show_bug.cgi?id=219513
>>>
>>>           Hardware: Sparc64
>>>           Priority: P3
>>>           Reporter: dullfire@yahoo.com
>>>         Regression: No
>>>
>>> Created attachment 307241
>>>   --> https://bugzilla.kernel.org/attachment.cgi?id=307241&action=edit
>>> debug info (some shell commands to check the PCIe devices and drivers)
>>>
>>> In linux-next (next-20241118), since
>>> commit 03cfe0e05650 ("PCI/pwrctl: Ensure that the pwrctl drivers are probed
>>> before the PCI client drivers")
>>> PCIe drivers no longer bind (at least on the tested SPARCv9 system).
>>>
>>> It appears a "supplier" devlink is created, however it is are dormant. see
>>> attached "bug-info.txt"
>>
>> Thanks for the report.  It sounds like you bisected this to
>> 03cfe0e05650?  Can you attach a complete dmesg log to the bugzilla?
>>
>> This commit is queued for v6.13, and the merge window is now open, so
>> if it's a regression, we need to resolve it or drop it ASAP.
> 
> Dullfire: is the DTS for this platform publicly available? If not, can
> you at least post the PCI host controller and all its children nodes
> here?
> 
> Bart

Bart: I attached to the bug report a dts extracted from the system.

Just a FYI: SPARC systems (including linux) get their device tree from the
open firmware, which likely dynamically generates at least parts of it, so
there is not a discrete source for it.

Regards,
Jonathan Currier