auxdisplay: ht16k33: remove private workqueue
There is no need for the driver to use private workqueue, standard system workqueue should suffice as they are going to use the same worker pool anyway. Acked-by: NRobin van der Gracht <robin@protonic.nl> Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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