linux-kernel - Re: [PATCH] usb: dwc2: hcd: fix periodic transfer schedule sequence

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Date:	Mon, 16 Nov 2015 10:27:04 -0800
From:	Doug Anderson <dianders@...omium.org>
To:	Yunzhi Li <lyz@...k-chips.com>
Cc:	John Youn <John.Youn@...opsys.com>,
	Julius Werner <jwerner@...gle.com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	wulf <wulf@...k-chips.com>,
	Kever Yang <kever.yang@...k-chips.com>,
	frank.wang@...k-chips.com, Tao Huang <huangtao@...k-chips.com>,
	caesar <caesar.wang@...k-chips.com>
Subject: Re: [PATCH] usb: dwc2: hcd: fix periodic transfer schedule sequence

Yunzhi

On Mon, Nov 16, 2015 at 7:25 AM, Yunzhi Li <lyz@...k-chips.com> wrote:
> When checking dwc2 host channel interrupts, handle qh in
> periodic_sched_queued list at first, then we could make sure CSPLIT
> packets scheduled in the same order as SSPLIT packets.
>
> Signed-off-by: Yunzhi Li <lyz@...k-chips.com>
> ---
>  drivers/usb/dwc2/hcd_intr.c | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)

This seems like a very reasonable fix to me.  I also bought the same
keyboard you were debugging with (The Das Keyboard 4 Ultimate Clicky)
and confirmed that problems are fixed by this patch on the
rk3288-based veyron-jerry sitting on my desk.


Reviewed-by: Douglas Anderson <dianders@...omium.org>
Tested-by: Douglas Anderson <dianders@...omium.org>
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