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| author |   Chunfeng Yun <chunfeng.yun@mediatek.com> | 2024-01-04 14:16:39 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-04 16:05:50 +0100 |
| commit | 017dbfc05c31284150819890b4cc86a699cbdb71 (patch) | |
| tree | 0621d25ada82e0bf16f9c613bc278ddf578cf97e /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | dt-bindings: usb: mtk-xhci: add a property for Gen1 isoc-in transfer issue (diff) | |
| download | wireguard-linux-017dbfc05c31284150819890b4cc86a699cbdb71.tar.xz wireguard-linux-017dbfc05c31284150819890b4cc86a699cbdb71.zip | |
usb: xhci-mtk: fix a short packet issue of gen1 isoc-in transfer
For Gen1 isoc-in transfer, host still send out unexpected ACK after device
finish the burst with a short packet, this will cause an exception on the
connected device, such as, a usb 4k camera.
It can be fixed by setting rxfifo depth less than 4k bytes, prefer to use
3k here, the side-effect is that may cause performance drop about 10%,
including bulk transfer.
Fixes: 926d60ae64a6 ("usb: xhci-mtk: modify the SOF/ITP interval for mt8195")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20240104061640.7335-2-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions