Hi On 27.12.2023 8.03, Chunfeng Yun wrote:
For Gen1 isoc-in endpoint on controller before about SSUSB IPM v1.6.0, it still send out unexpected ACK after receiving a short packet in burst transfer, this will cause an exception on connected device, specially for a 4k camera. Add a quirk property "rx-fifo-depth" to work around this hardware issue, prefer to use 3k bytes; The side-effect is that may cause performance drop about 10%, including bulk transfer.
Is it be possible to detect those Mediatek xHC versions that need this workaround in the xhci-mtk driver directly? This way we could avoid passing a new "rx-fifo-depth" property to it. Thanks Mathias
