Update the tx-fifo-resize property with a better description, while
adding the tx-fifo-max-num, which is a new parameter allowing
adjustments for the maximum number of packets the txfifo resizing logic
can account for while resizing the endpoints.
Signed-off-by: Wesley Cheng
---
Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 15 +--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
index 2247da7..652b246 100644
--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -283,10 +283,21 @@ properties:
maximum: 16
tx-fifo-resize:
-description: Determines if the FIFO *has* to be reallocated
-deprecated: true
+description: Determines if the TX fifos can be dynamically resized
depending
+ on the number of IN endpoints used and if bursting is supported. This
+ may help improve bandwidth on platforms with higher system latencies, as
+ increased fifo space allows for the controller to prefetch data into its
+ internal memory.
type: boolean
+ tx-fifo-max-num:
+description: Specifies the max number of packets the txfifo resizing logic
+ can account for when higher endpoint bursting is used. (bMaxBurst > 6)
The
+ higher the number, the more fifo space the txfifo resizing logic will
+ allocate for that endpoint.
+$ref: /schemas/types.yaml#/definitions/uint8
+minimum: 3
+
snps,incr-burst-type-adjustment:
description:
Value for INCR burst type of GSBUSCFG0 register, undefined length INCR
--
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