ASoC: Intel: Skylake: Fix driver hang during shutdown

AudioDSP cores and HDAudio links need to be turned off on shutdown to
ensure no communication or data transfer occurs during the procedure.

Fixes: c5a76a2 ("ASoC: Intel: Skylake: Add shutdown callback")
Signed-off-by: Cezary Rojewski <[email protected]>
Tested-by: Lukasz Majczak <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: crojewsk-intel

sound/soc/intel/skylake/skl.c

@@ -1107,7 +1107,10 @@ static void skl_shutdown(struct pci_dev *pci)
 	if (!skl->init_done)
 		return;
 
-	snd_hdac_stop_streams_and_chip(bus);
+	snd_hdac_stop_streams(bus);
+	snd_hdac_ext_bus_link_power_down_all(bus);
+	skl_dsp_sleep(skl->dsp);
+
 	list_for_each_entry(s, &bus->stream_list, list) {
 		stream = stream_to_hdac_ext_stream(s);
 		snd_hdac_ext_stream_decouple(bus, stream, false);