Add a new 'xhci-sg-trb-cache-size-quirk' DT quirk to dwc3 core
for preventing xhci hang issue while using SG buffers.
Cc: <stable@xxxxxxxxxxxxxxx> # 5.11
Fixes: bac1ec551434 ("usb: xhci: Set quirk for XHCI_SG_TRB_CACHE_SIZE_QUIRK")
Signed-off-by: Prashanth K <quic_prashk@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
index ee5af4b381b1..768fdb5b1f05 100644
--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -459,6 +459,13 @@ properties:
description:
Enable USB remote wakeup.
+ xhci-sg-trb-cache-size-quirk:
+ description:
+ When set, fixes the SNPS xHC hang issue when the data is scattered across
+ small buffers which does not make at least MPS size for given controller
+ TRB cache size.
+ type: boolean
+
unevaluatedProperties: false
required:
--
2.25.1
