• Johan Hovold's avatar
    USB: serial: pl2303: fix tranceiver suspend mode · f64c3ab2
    Johan Hovold authored
    Add helper function to update register bits instead of overwriting the
    entire control register when updating the flow-control settings.
    
    This specifically avoids having the tranceiver suspend mode (bit 0)
    depend on the flow control setting.
    
    The tranceiver is currently configured at probe to be disabled during
    suspend, but this was overridden when disabling flow control or enabling
    xon/xoff.
    
    Fixes: 715f9527 ("USB: flow control fix for pl2303")
    Fixes: 7041d9c3
    
     ("USB: serial: pl2303: add support for tx xon/xoff flow control")
    Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
    f64c3ab2