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authorThinh Nguyen <thinh.nguyen@synopsys.com>2018-11-15 09:56:48 +0300
committerFelipe Balbi <felipe.balbi@linux.intel.com>2018-11-26 10:06:32 +0300
commitdd74b96c74806da7a0e8cc794328950a2a7cb833 (patch)
treeecdec947c9ef61dbc799dfbd12304f68183c3003 /Documentation/devicetree/bindings/usb/dwc3.txt
parent475d8e0197f1bcf4647041f46206ffc1a16d15dd (diff)
downloadlinux-dd74b96c74806da7a0e8cc794328950a2a7cb833.tar.xz
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>
Diffstat (limited to 'Documentation/devicetree/bindings/usb/dwc3.txt')
-rw-r--r--Documentation/devicetree/bindings/usb/dwc3.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
index 7e33e53e7c29..8e5265e9f658 100644
--- a/Documentation/devicetree/bindings/usb/dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
@@ -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