From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vinod Koul Subject: [PATCH 6/7] ASoC: Intel: Skylake: Add shutdown callback Date: Fri, 5 Feb 2016 12:19:09 +0530 Message-ID: <1454654950-23091-7-git-send-email-vinod.koul@intel.com> References: <1454654950-23091-1-git-send-email-vinod.koul@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by alsa0.perex.cz (Postfix) with ESMTP id C3281266618 for ; Fri, 5 Feb 2016 07:46:19 +0100 (CET) In-Reply-To: <1454654950-23091-1-git-send-email-vinod.koul@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org Cc: tiwai@suse.de, patches.audio@intel.com, liam.r.girdwood@linux.intel.com, Vinod Koul , broonie@kernel.org, Jeeja KP List-Id: alsa-devel@alsa-project.org From: Jeeja KP 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 --- 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, }, -- 1.9.1