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? Li Jun Tim <elatllat@xxxxxxxxx> 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@xxxxxxxxxx> 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@xxxxxxxxx> > > > Cc: Jianxin Pan <jianxin.pan@xxxxxxxxxxx> > > > Reported-by: Tim <elatllat@xxxxxxxxx> > > > Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> > > > --- > > > 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@xxxxxxxxxx>
