git.ipfire.org Git - thirdparty/openwrt.git/blob

   1 From 6c0f34fb0f83741f7f03f6bfd3fcbc89cb2c7cde Mon Sep 17 00:00:00 2001
   2 From: Jonathan Bell <jonathan@raspberrypi.com>
   3 Date: Wed, 6 Nov 2024 10:26:55 +0000
   4 Subject: [PATCH] dt-bindings: usb: snps,dwc3: add FS/HS periodic NAK polling
   5  quirk
   6
   7 Add two quirk properties that control whether or not the controller
   8 issues many more handshakes to FS/HS Async endpoints in a single
   9 (micro)frame. Enabling these can significantly increase throughput for
  10 endpoints that frequently respond with NAKs.
  11
  12 Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
  13 ---
  14  Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 10 ++++++++++
  15  1 file changed, 10 insertions(+)
  16
  17 --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
  18 +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
  19 @@ -231,6 +231,16 @@ properties:
  20      description: When set, disable u2mac linestate check during HS transmit
  21      type: boolean
  22
  23 +  snps,enhanced-nak-fs-quirk:
  24 +    description:
  25 +      When set, the controller schedules many more handshakes to Async FS
  26 +      endpoints, improving throughput when they frequently respond with NAKs.
  27 +
  28 +  snps,enhanced-nak-hs-quirk:
  29 +    description:
  30 +      When set, the controller schedules many more handshakes to Async HS
  31 +      endpoints, improving throughput when they frequently respond with NAKs.
  32 +
  33    snps,parkmode-disable-ss-quirk:
  34      description:
  35        When set, disable park mode for all Superspeed bus instances.