Here are backports of the three patches that didn't apply to 5.4.
Johan
Johan Hovold (3): usb: dwc3: qcom: fix use-after-free on runtime-PM wakeup USB: serial: ch341: fix lost character on LCR updates USB: serial: ch341: fix disabled rx timer on older devices
drivers/usb/dwc3/dwc3-qcom.c | 14 +++++++++++++- drivers/usb/dwc3/host.c | 1 + drivers/usb/serial/ch341.c | 15 +++++++++++++-- 3 files changed, 27 insertions(+), 3 deletions(-)