Thread (7 messages) 7 messages, 3 authors, 2021-12-21
STALE1632d
Revisions (3)
  1. v1 [diff vs current]
  2. v2 current
  3. v3 [diff vs current]

[PATCH v2 2/2] dt-bindings: usb: document snps,dis_split_quirk property in dwc3

From: Yaqin Pan <hidden>
Date: 2021-12-20 14:16:49
Also in: linux-usb, lkml
Subsystem: open firmware and flattened device tree bindings, the rest, usb subsystem · Maintainers: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Greg Kroah-Hartman

Add snps,dis_split_quirk property for dwc3 controller

Signed-off-by: Yaqin Pan <redacted>
---
 Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 6 ++++++
 1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
index 41416fbd92aa..e9615ca8f447 100644
--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -226,6 +226,12 @@ properties:
       avoid -EPROTO errors with usbhid on some devices (Hikey 970).
     type: boolean
 
+  snps,dis-split-quirk:
+    description:
+      When set, change the way host controller schedules transations for a Control transfer.
+      Avoid failing to enumerate some devices due to usb compatibility issues.
+    type: boolean
+
   snps,is-utmi-l1-suspend:
     description:
       True when DWC3 asserts output signal utmi_l1_suspend_n, false when
-- 
2.17.1
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