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36 lines
1.4 KiB
Diff
36 lines
1.4 KiB
Diff
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From 6c0f34fb0f83741f7f03f6bfd3fcbc89cb2c7cde Mon Sep 17 00:00:00 2001
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From: Jonathan Bell <jonathan@raspberrypi.com>
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Date: Wed, 6 Nov 2024 10:26:55 +0000
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Subject: [PATCH] dt-bindings: usb: snps,dwc3: add FS/HS periodic NAK polling
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quirk
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Add two quirk properties that control whether or not the controller
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issues many more handshakes to FS/HS Async endpoints in a single
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(micro)frame. Enabling these can significantly increase throughput for
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endpoints that frequently respond with NAKs.
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Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
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---
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Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 10 ++++++++++
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1 file changed, 10 insertions(+)
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--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
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+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
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@@ -231,6 +231,16 @@ properties:
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description: When set, disable u2mac linestate check during HS transmit
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type: boolean
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+ snps,enhanced-nak-fs-quirk:
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+ description:
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+ When set, the controller schedules many more handshakes to Async FS
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+ endpoints, improving throughput when they frequently respond with NAKs.
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+
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+ snps,enhanced-nak-hs-quirk:
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+ description:
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+ When set, the controller schedules many more handshakes to Async HS
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+ endpoints, improving throughput when they frequently respond with NAKs.
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+
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snps,parkmode-disable-ss-quirk:
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description:
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When set, disable park mode for all Superspeed bus instances.
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