this fixes the issue:
adding the following lines to drivers/usb/host/xhci-mem.c line:1616
if (xhci->quirks & XHCI_MTK_HOST) {
in_ep_ctx->reserved[0] = out_ep_ctx->reserved[0];
in_ep_ctx->reserved[1] = out_ep_ctx->reserved[1];
}
commit below is wrong...i got the response:
This issue is caused by the commit : 27082e2654dc (“xhci: Clear the host side toggle manually when endpoint is ‘soft reset’”)...
i think this commit is meant: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5249461b504d35aa1a40140983b7ec415807d9e
sorry for confusion, had searched and not compared the result again :(
pushed to my github: https://github.com/frank-w/BPI-R2-4.14/commit/c9acc5a4285d0de71171c7c1fb3ae7dc0bffec34
official patch will be send by mediatek
regards Frank
Gesendet: Dienstag, 04. September 2018 um 15:45 Uhr
Von: "Mathias Nyman" <mathias.nyman@xxxxxxxxxxxxxxx>
An: "Frank Wunderlich" <frankwu@xxxxxx>, linux-usb@xxxxxxxxxxxxxxx
Betreff: Re: Fw: Aw: Re: keyboard-problem on bpi-r2 since 4.17
On 04.09.2018 16:14, Frank Wunderlich wrote:
> Hi,
>
> i got an info that my issue was caused by this commit:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=217491487c43892318c18b6dcafe33b6353efd40
>
> Patch is in progress...
That patch has been there since 4.13
If 4.16 works for you then it's probably something else
>>
>> is there another way to show more debug-messages?
>>
>> i have a working 4.16-tree, maybe i can merge newer versions (go
>> forward from it instead of backwards).
>>
xhci debugging can be added by:
mount -t debugfs none /sys/kernel/debug
echo -n 'module xhci_hcd =p' > /sys/kernel/debug/dynamic_debug/control
and tracing with: (before pressing keyboard key)
(mount -t debugfs none /sys/kernel/debug)
echo 81920 > /sys/kernel/debug/tracing/buffer_size_kb
echo 1 > /sys/kernel/debug/tracing/events/xhci-hcd/enable
after pressing key traces are found at:
/sys/kernel/debug/tracing/trace
-Mathias
