[PATCH v2 0/5] usb: host: xhci-plat: omit shared hcd if either of the root hubs has no ports

[Mathias Nyman]

On 24.3.2022 21.38, Heiner Kallweit wrote:
> On 24.03.2022 10:23, Mathias Nyman wrote:
>> On 17.3.2022 0.08, Heiner Kallweit wrote:
>>> I have a system with a low-cost Amlogic S905W SoC that supports USB3
>>> but has a USB3 root hub with no ports. This results in an error
>>> message and a hcd that is good for nothing. The USB2 root hub has
>>> ports and works normally.
>>> I think we can do better and omit creating a shared hcd if either of
>>> the root hubs has no ports. This series is based on discussion [0].
>>>
>>> The series works as intended for me. What I couldn't test is the case
>>> of the USB2 root hub having no ports.
>>>
>>> Follow-up to this series could be applying the xhci-plat extension
>>> to other xhci drivers.
>>>
>>
>> Thanks,
>> Patches look good but something must have changed since you submitted them.
>> I can't apply them neatly on usb-next, usb-linus, 5.17, or 5.17-rc8
>>
>>
>> On top of usb-next I get:
>> Applying: usb: host: xhci-plat: create shared hcd after having added main hcd
>> error: patch failed: drivers/usb/host/xhci-plat.c:313
>> error: drivers/usb/host/xhci-plat.c: patch does not apply
>> Patch failed at 0003 usb: host: xhci-plat: create shared hcd after having added main hcd
>>
> The series was based on linux-next. Seems you're missing 8e10548f7f48
> ("Revert "usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada 3720"").
> 
>> -Mathias
> 
> Heiner
> 

Thanks, applies fine on linux-next.

I'll add these after 5.18-rc1 to my own tree, and try them out by faking a one roothub
PCI xhci device. Patches should end up in 5.19 if all goes well.

-Mathias