Thread (9 messages) 9 messages, 3 authors, 2022-01-05

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

From: Yaqin Pan <hidden>
Date: 2021-12-17 14:46:03
Also in: linux-usb, lkml

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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:
I'm tired of the never ending DWC3 quirks. Imply this from the 
compatible unless it varies by board.
Yes, this is a DWC3 controller compatible issue.
Also, don't use '_' in DT names.
Sure, i will change "snps,dis_split_quirk" to "snps,dis-split-quirk".
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+    description:
+      When set, change the way host controller schedules transations for a Control transfer.
   Transactions.
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+      Needed to avoid emurate some devices fail.
   Avoid failing to enumerating some devices?
Yes. Avoid failing to enumerate some devices.
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   Sorry. enumarate. :-)
Or enumerate
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