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usb: dwc3: Add disabling of start_transfer failure quirk 

DWC_usb31 peripheral v1.70a-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.

Synopsys STAR 9001202023: Wrong microframe number for isochronous IN
endpoints.

Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
hifive-unleashed-5.1
Thinh Nguyen 2018-11-14 22:56:48 -08:00 committed by Felipe Balbi
parent 475d8e0197
commit dd74b96c74
1 changed files with 3 additions and 0 deletions
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3
Documentation/devicetree/bindings/usb/dwc3.txt
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@ -39,6 +39,9 @@ Optional properties:
- resets: a single pair of phandle and reset specifier
- snps,usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM
- snps,usb3_lpm_capable: determines if platform is USB3 LPM capable
- 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,disable_scramble_quirk: true when SW should disable data scrambling.
Only really useful for FPGA builds.
- snps,has-lpm-erratum: true when DWC3 was configured with LPM Erratum enabled