Re: [PATCH 14/15] usb: dwc3: Add disabling of start_transfer failure quirk

[Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.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 <johnyoun-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
> Signed-off-by: Thinh Nguyen <thinhn-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
> ---
>  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
> 
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