ASoC: Intel: Skylake: Add shutdown callback

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>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index 092705e73db497fb1d75c1c9b45a3c2aaaa34507..06f4b2c134233524b9d871756e9120fb9d2afab5 100644 (file)
--- 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,
        },