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usb: xhci-hcd: add a gratuitous doorbell read #6430

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usb: xhci-hcd: add a gratuitous doorbell read #6430

wants to merge 2 commits into from

Commits on Oct 30, 2024

  1. usb: xhci-hcd: add a gratuitous doorbell read 

    This may assist in debugging raspberrypi#6141

The symptom is that the Interrupt endpoint for the dongle sometimes has
one outstanding TRB, but the lack of USB bus activity suggests that the
xHC didn't correctly register the TRB as valid when the doorbell ring
happened.

Adding this dummy read seems to fix it.

Signed-off-by: Jonathan Bell <[email protected]>
    @P33M
    P33M committed Oct 30, 2024
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  2. HACK: bluetooth: extend timeouts to 20 seconds 

    Idea is to capture debug output in this window
    @P33M
    P33M committed Oct 30, 2024
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