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From:   Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
To:     Douglas Anderson <dianders@chromium.org>,
        "balbi@kernel.org" <balbi@kernel.org>,
        "Minas.Harutyunyan@synopsys.com" <Minas.Harutyunyan@synopsys.com>,
        "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>
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        "grigor.tovmasyan@synopsys.com" <grigor.tovmasyan@synopsys.com>,
        "Bruno Herrera" <bruherrera@gmail.com>,
        Zhangfei Gao <zhangfei.gao@linaro.org>,
        "john.stultz@linaro.org" <john.stultz@linaro.org>,
        Stephen Warren <swarren@wwwdotorg.org>,
        Jerome Brunet <jbrunet@baylibre.com>,
        "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [REPOST PATCH 0/4] usb: dwc2: Turn on uframe sched everywhere
Thread-Topic: [REPOST PATCH 0/4] usb: dwc2: Turn on uframe sched everywhere
Thread-Index: AQHUJRxcWQJzTHhXfkeORkEblzPMGQ==
Date:   Fri, 27 Jul 2018 11:00:07 +0000
Message-ID: <410670D7E743164D87FA6160E7907A56013A5CBDB4@am04wembxa.internal.synopsys.com>
References: <20180726200730.18290-1-dianders@chromium.org>
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On 7/27/2018 12:08 AM, Douglas Anderson wrote:=0A=
> While looking at a dwc2 recently, I noticed that some platforms still=0A=
> have the uframe scheduler off.  As far as I know, nothing good can=0A=
> come out of having the uframe scheduler off.  Let's turn it on=0A=
> everywhere.  Assuming this all works out then some time in the future=0A=
> we can gut all the old code that handles the old non-uframe scheduler=0A=
> and make everything simpler.=0A=
> =0A=
> This is a repost of the original "RFT" (request for testing) series I=0A=
> posted a few weeks ago but without the "RFT" prefix.  Two of the=0A=
> patches in the series now have "Tested-by:" tags.  Since there should=0A=
> be nothing platform specific about the uFrame scheduler presumably=0A=
> this should mean we're good to go?  Specificaly note that in at least=0A=
> one of the "Tested-by" reports this patch caused a notable=0A=
> improvement.=0A=
> =0A=
> In response to the original RFT, some notes about testing this:=0A=
> - In general, try to have lots of things plugged in.=0A=
> - Plug many different keyboards / mice in.  See if keys are=0A=
>    dropped / mouse is jerky.=0A=
> - Try USB audio (ideally full speed, not high speed).  How is=0A=
>    the audio?=0A=
> - If you're brave, try a USB webcam.  How is the video?=0A=
>    ...maybe try including patches from crbug.com/820961 too.=0A=
> =0A=
> =0A=
> Douglas Anderson (4):=0A=
>    usb: dwc2: Turn on uframe_sched on "bcm" platforms=0A=
>    usb: dwc2: Turn on uframe_sched on "his" platforms=0A=
>    usb: dwc2: Turn on uframe_sched on "amlogic" platforms=0A=
>    usb: dwc2: Turn on uframe_sched on "stm32f4x9_fsotg" platforms=0A=
> =0A=
>   drivers/usb/dwc2/params.c | 4 ----=0A=
>   1 file changed, 4 deletions(-)=0A=
> =0A=
Reviewed-by: Minas Harutyunyan <hminas@synopsys.com>=0A=
=0A=