From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH 14/15] usb: dwc3: Add disabling of start_transfer failure quirk Date: Mon, 8 Jan 2018 22:16:02 -0600 Message-ID: <20180109041602.f4tk5jynnno2xgvk@rob-hp-laptop> References: <3c63b5f97343d276049e1d59ef2371160004b137.1515182391.git.thinhn@synopsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <3c63b5f97343d276049e1d59ef2371160004b137.1515182391.git.thinhn-HKixBCOQz3hWk0Htik3J/w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Thinh Nguyen Cc: Felipe Balbi , linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Mark Rutland , John Youn List-Id: devicetree@vger.kernel.org On Fri, Jan 05, 2018 at 12:16:02PM -0800, Thinh Nguyen wrote: > In DWC_usb31 version 1.70a-ea06 and prior needs a SW workaround for isoc > START TRANSFER command failure. However, some affected versions may have > RTL patches to fix this without a SW workaround. Add this quirk to > disable the SW workaround when it is not needed. I really think this one should be implied by compatible strings. > Synopsys STAR 9001202023: Wrong microframe number for isochronous IN > endpoints. > > Cc: John Youn > Signed-off-by: Thinh Nguyen > --- > Documentation/devicetree/bindings/usb/dwc3.txt | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt > index 02dde83d02fa..c03a3b363cde 100644 > --- a/Documentation/devicetree/bindings/usb/dwc3.txt > +++ b/Documentation/devicetree/bindings/usb/dwc3.txt > @@ -15,6 +15,9 @@ Optional properties: > - phys: from the *Generic PHY* bindings > - phy-names: from the *Generic PHY* bindings; supported names are "usb2-phy" > or "usb3-phy". > + - snps,dis_start_transfer_quirk: when set, disable isoc START TRANSFER command > + failure SW work-around for DWC_usb31 version 1.70a-ea06 > + and prior. > - snps,usb3_lpm_capable: determines if platform is USB3 LPM capable > - snps,disable_scramble_quirk: true when SW should disable data scrambling. > Only really useful for FPGA builds. > -- > 2.11.0 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html