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-rw-r--r--dts/upstream/Bindings/usb/mediatek,mtk-xhci.yaml11
1 files changed, 11 insertions, 0 deletions
diff --git a/dts/upstream/Bindings/usb/mediatek,mtk-xhci.yaml b/dts/upstream/Bindings/usb/mediatek,mtk-xhci.yaml
index e9644e333d7..924fd3d748a 100644
--- a/dts/upstream/Bindings/usb/mediatek,mtk-xhci.yaml
+++ b/dts/upstream/Bindings/usb/mediatek,mtk-xhci.yaml
@@ -124,6 +124,17 @@ properties:
defined in the xHCI spec on MTK's controller.
default: 5000
+ rx-fifo-depth:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ It is a quirk used to work around Gen1 isoc-in endpoint transfer issue
+ that still send out unexpected ACK after device finishes the burst
+ transfer with a short packet and cause an exception, specially on a 4K
+ camera device, it happens on controller before about IPM v1.6.0;
+ the side-effect is that it may cause performance drop about 10%,
+ including bulk transfer, prefer to use 3k here. The size is in bytes.
+ enum: [1024, 2048, 3072, 4096]
+
# the following properties are only used for case 1
wakeup-source:
description: enable USB remote wakeup, see power/wakeup-source.txt