D50306.diff
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	diff --git a/sys/dev/sound/pci/hda/hdac.c b/sys/dev/sound/pci/hda/hdac.c
	--- a/sys/dev/sound/pci/hda/hdac.c
	+++ b/sys/dev/sound/pci/hda/hdac.c
	@@ -1638,6 +1638,35 @@
	sizeof(sc->dev), sysctl_hdac_polling, "I", "Enable polling mode");
	}

	+/****************************************************************************
	+ * int hdac_shutdown(device_t)
	+ *
	+ * Power down HDA bus and codecs.
	+ ****************************************************************************/
	+static int
	+hdac_shutdown(device_t dev)
	+{
	+ struct hdac_softc *sc = device_get_softc(dev);
	+
	+ HDA_BOOTHVERBOSE(
	+ device_printf(dev, "Shutdown...\n");
	+ );
	+ callout_drain(&sc->poll_callout);
	+ taskqueue_drain(taskqueue_thread, &sc->unsolq_task);
	+ bus_generic_shutdown(dev);
	+
	+ hdac_lock(sc);
	+ HDA_BOOTHVERBOSE(
	+ device_printf(dev, "Reset controller...\n");
	+ );
	+ hdac_reset(sc, false);
	+ hdac_unlock(sc);
	+ HDA_BOOTHVERBOSE(
	+ device_printf(dev, "Shutdown done\n");
	+ );
	+ return (0);
	+}
	+
	/****************************************************************************
	* int hdac_suspend(device_t)
	*
	@@ -2148,6 +2177,7 @@
	DEVMETHOD(device_probe, hdac_probe),
	DEVMETHOD(device_attach, hdac_attach),
	DEVMETHOD(device_detach, hdac_detach),
	+ DEVMETHOD(device_shutdown, hdac_shutdown),
	DEVMETHOD(device_suspend, hdac_suspend),
	DEVMETHOD(device_resume, hdac_resume),
	/* Bus interface */