diff mbox series

[v7,1/2] usb: dwc3: Add disabling of start_transfer failure quirk

Message ID d4d097f9545e9a19c1986f63bc0fd6f1bba252f1.1542264763.git.thinhn@synopsys.com (mailing list archive)
State Mainlined
Commit dd74b96c74806da7a0e8cc794328950a2a7cb833
Headers show
Series usb: dwc3: Workaround isoc start_transfer failure | expand

Commit Message

Thinh Nguyen Nov. 15, 2018, 6:56 a.m. UTC 
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>
---
 Documentation/devicetree/bindings/usb/dwc3.txt | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

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