From: Mathias Nyman <mathias.nyman@linux.intel.com>
To: Heiner Kallweit <hkallweit1@gmail.com>,
Mathias Nyman <mathias.nyman@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linux USB Mailing List <linux-usb@vger.kernel.org>,
"open list:ARM/Amlogic Meson..."
<linux-amlogic@lists.infradead.org>,
Alan Stern <stern@rowland.harvard.edu>,
Jack Pham <quic_jackp@quicinc.com>,
Tung Nguyen <tunguyen@apm.com>
Subject: Re: [PATCH v2 0/5] usb: host: xhci-plat: omit shared hcd if either of the root hubs has no ports
Date: Thu, 24 Mar 2022 22:46:54 +0200 [thread overview]
Message-ID: <7ab8d931-2b48-5297-4b2e-2d5ac0149428@linux.intel.com> (raw)
In-Reply-To: <73b6b3aa-b38e-bf28-59e0-7c58afaadf9d@gmail.com>
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
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prev parent reply other threads:[~2022-03-24 20:45 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-16 22:08 Heiner Kallweit
2022-03-16 22:09 ` [PATCH v2 1/5] xhci: factor out parts of xhci_gen_setup() Heiner Kallweit
2022-03-16 22:09 ` [PATCH v2 2/5] xhci: prepare for operation w/o shared hcd Heiner Kallweit
2022-03-16 22:10 ` [PATCH v2 3/5] usb: host: xhci-plat: create shared hcd after having added main hcd Heiner Kallweit
2022-03-16 22:11 ` [PATCH v2 4/5] usb: host: xhci-plat: prepare operation w/o shared hcd Heiner Kallweit
2022-06-08 20:55 ` Matthias Kaehlcke
2022-06-09 11:38 ` Mathias Nyman
2022-06-09 12:03 ` [RFT PATCH] xhci: Fix null pointer dereference in resume if xhci has only one roothub Mathias Nyman
2022-06-09 15:41 ` Matthias Kaehlcke
2022-06-10 8:17 ` Mathias Nyman
2022-06-09 15:10 ` [PATCH v2 4/5] usb: host: xhci-plat: prepare operation w/o shared hcd Matthias Kaehlcke
2022-03-16 22:12 ` [PATCH v2 5/5] usb: host: xhci-plat: omit shared hcd if either root hub has no ports Heiner Kallweit
2022-03-24 9:23 ` [PATCH v2 0/5] usb: host: xhci-plat: omit shared hcd if either of the root hubs " Mathias Nyman
2022-03-24 19:38 ` Heiner Kallweit
2022-03-24 20:46 ` Mathias Nyman [this message]
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