From: Neil Armstrong <narmstrong@baylibre.com>
To: Jun Li <lijun.kernel@gmail.com>, Tim <elatllat@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>,
Jianxin Pan <jianxin.pan@amlogic.com>,
devicetree@vger.kernel.org, khilman@baylibre.com,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Dongjin Kim <tobetter@gmail.com>,
linux-amlogic@lists.infradead.org, Rob Herring <robh@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/3] doc: dt: bindings: usb: dwc3: Update entries for disabling SS instances in park mode
Date: Tue, 12 Nov 2019 10:00:02 +0100 [thread overview]
Message-ID: <c32007f5-88b9-45c5-b542-b1dc4dbc76ea@baylibre.com> (raw)
In-Reply-To: <CAKgpwJWU3jB0DWEKE09TOV+YLceBFJ75ZirAXQbuhj8v3FwjXg@mail.gmail.com>
Hi Li,
On 11/11/2019 02:58, Jun Li wrote:
> Hi Neil
>
> As I got the information from Synopsys, this bug exists on current IP versions,
> and per my tests with external USB3 hub + 2 Super speed udisks on data
> read by dd, I can reproduce this issue with different kernel versions, also I
> didn't see obvious performance drop by dd tests after disable park mode for
> super speed, so should we just disable it by default so no need a quirk?
I don't have any opinion on this, I think the USB & DWC3 maintainers should decide
how to handle this.
Did Synopsys specified a range of affected IP version ?
Neil
>
> Li Jun
>
> Tim <elatllat@gmail.com> 于2019年11月11日周一 上午8:42写道：
>>
>> Thanks for working on this Neil,
>> Is there something that needs doing for this patch to make it into 5.3 or 5.4?
>> As previously mentioned the patch set fixes the issue on affected hardware;
>> https://patchwork.kernel.org/patch/11164515/
>>
>>
>>
>> On Wed, Oct 23, 2019 at 4:11 PM Rob Herring <robh@kernel.org> wrote:
>>>
>>> On Mon, Oct 14, 2019 at 04:17:16PM +0200, Neil Armstrong wrote:
>>>> This patch updates the documentation with the information related
>>>> to the quirks that needs to be added for disabling all SuperSpeed XHCi
>>>> instances in park mode.
>>>>
>>>> CC: Dongjin Kim <tobetter@gmail.com>
>>>> Cc: Jianxin Pan <jianxin.pan@amlogic.com>
>>>> Reported-by: Tim <elatllat@gmail.com>
>>>> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
>>>> ---
>>>> Documentation/devicetree/bindings/usb/dwc3.txt | 2 ++
>>>> 1 file changed, 2 insertions(+)
>>>
>>> Sigh, what's one more to the never ending list of quirks...
>>>
>>> Acked-by: Rob Herring <robh@kernel.org>
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next prev parent reply other threads:[~2019-11-12 9:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-14 14:17 [PATCH 0/3] arm64: g12-common: parkmode_disable_ss_quirk on DWC3 controller Neil Armstrong
2019-10-14 14:17 ` [PATCH 1/3] doc: dt: bindings: usb: dwc3: Update entries for disabling SS instances in park mode Neil Armstrong
2019-10-23 20:11 ` Rob Herring
2019-11-11 0:38 ` Tim
2019-11-11 1:58 ` Jun Li
2019-11-11 14:05 ` Tim
2019-11-12 1:48 ` Jun Li
2019-11-12 9:00 ` Neil Armstrong [this message]
2019-11-12 10:51 ` Jun Li
2019-11-12 20:03 ` Thinh Nguyen
2019-12-10 8:55 ` Neil Armstrong
2019-12-11 0:45 ` Tim
2019-12-20 9:58 ` Tim
2019-10-14 14:17 ` [PATCH 2/3] usb: dwc3: gadget: Add support " Neil Armstrong
2019-10-14 14:17 ` [PATCH 3/3] arm64: dts: g12-common: add parkmode_disable_ss_quirk on DWC3 controller Neil Armstrong
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