From c5a76a246989c8155d372142089ccfc9dc022388 Mon Sep 17 00:00:00 2001 From: Jeeja KP Date: Fri, 5 Feb 2016 12:19:09 +0530 Subject: [PATCH] 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 Signed-off-by: Vinod Koul Signed-off-by: Mark Brown --- 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 092705e..06f4b2c 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, }, -- 2.7.4