• Bin Liu's avatar
    usb: musb: fix tx fifo flush handling again · 45d73860
    Bin Liu authored
    commit 68fe05e2 ("usb: musb: fix tx fifo flush handling") drops the
    1ms delay trying to solve the long disconnect time issue when
    application queued many tx urbs. However, the 1ms delay is needed for
    some use cases, for example, without the delay, reconnecting AR9271 WIFI
    dongle no longer works if the connection is dropped from the AP.
    
    So let's add back the 1ms delay in musb_h_tx_flush_fifo(), and solve the
    long disconnect time problem with a separate patch for
    usb_hcd_flush_endpoint().
    
    Cc: stable@vger.kernel.org # v4.4+
    Signed-off-by: default avatarBin Liu <b-liu@ti.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    45d73860
musb_host.c 75.8 KB