From: Jeeja KP jeeja.kp@intel.com
While going to shutdown, we need to bring HW to clean state. This is done by cleaning up stream descriptor registers. This cleanup is already done by decoupling of stream and stopping the chip, so invoke these from shutdown handler.
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index 092705e73db4..06f4b2c13423 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -634,6 +634,31 @@ out_free: return err; }
+static void skl_shutdown(struct pci_dev *pci) +{ + struct hdac_ext_bus *ebus = pci_get_drvdata(pci); + struct hdac_bus *bus = ebus_to_hbus(ebus); + struct hdac_stream *s; + struct hdac_ext_stream *stream; + struct skl *skl; + + if (ebus == NULL) + return; + + skl = ebus_to_skl(ebus); + + if (skl->init_failed) + return; + + snd_hdac_ext_stop_streams(ebus); + list_for_each_entry(s, &bus->stream_list, list) { + stream = stream_to_hdac_ext_stream(s); + snd_hdac_ext_stream_decouple(ebus, stream, false); + } + + snd_hdac_bus_stop_chip(bus); +} + static void skl_remove(struct pci_dev *pci) { struct hdac_ext_bus *ebus = pci_get_drvdata(pci); @@ -677,6 +702,7 @@ static struct pci_driver skl_driver = { .id_table = skl_ids, .probe = skl_probe, .remove = skl_remove, + .shutdown = skl_shutdown, .driver = { .pm = &skl_pm, },