From patchwork Thu Nov 3 11:37:21 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 9411327 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5F8C060585 for ; Thu, 3 Nov 2016 18:27:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5CD1A2AEBC for ; Thu, 3 Nov 2016 18:27:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 507632AEBE; Thu, 3 Nov 2016 18:27:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 65A722AEBC for ; Thu, 3 Nov 2016 18:27:32 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id 04512266B54; Thu, 3 Nov 2016 19:27:30 +0100 (CET) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id A78DD266A02; Thu, 3 Nov 2016 19:25:09 +0100 (CET) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id 093DE2671CA; Thu, 3 Nov 2016 12:28:44 +0100 (CET) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by alsa0.perex.cz (Postfix) with ESMTP id 3A4F0260083 for ; Thu, 3 Nov 2016 12:28:38 +0100 (CET) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga105.jf.intel.com with ESMTP; 03 Nov 2016 04:28:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.31,438,1473145200"; d="scan'208"; a="1054584141" Received: from vkoul-udesk7.iind.intel.com ([10.223.84.143]) by orsmga001.jf.intel.com with ESMTP; 03 Nov 2016 04:28:34 -0700 From: Vinod Koul To: alsa-devel@alsa-project.org Date: Thu, 3 Nov 2016 17:07:21 +0530 Message-Id: <1478173042-9458-9-git-send-email-vinod.koul@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1478173042-9458-1-git-send-email-vinod.koul@intel.com> References: <1478173042-9458-1-git-send-email-vinod.koul@intel.com> Cc: liam.r.girdwood@linux.intel.com, patches.audio@intel.com, broonie@kernel.org, Vinod Koul , Jayachandran B Subject: [alsa-devel] [PATCH v2 8/9] ASoC: Intel: Skylake: Flush pending D0i3 request on suspend X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jayachandran B While going to suspend, if we have any pending D0i3 work scheduled, flush that and force the DSP to goto D0i3 mode before going to suspend. Signed-off-by: Jayachandran B Signed-off-by: Vinod Koul --- sound/soc/intel/skylake/skl-messages.c | 27 +++++++++++++++++++++++++++ sound/soc/intel/skylake/skl.c | 10 ++++++++++ sound/soc/intel/skylake/skl.h | 1 + 3 files changed, 38 insertions(+) diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c index 87fc647fa04c..4ae021aabc3a 100644 --- a/sound/soc/intel/skylake/skl-messages.c +++ b/sound/soc/intel/skylake/skl-messages.c @@ -294,6 +294,33 @@ int skl_free_dsp(struct skl *skl) return 0; } +/* + * In the case of "suspend_active" i.e, the Audio IP being active + * during system suspend, immediately excecute any pending D0i3 work + * before suspending. This is needed for the IP to work in low power + * mode during system suspend. In the case of normal suspend, cancel + * any pending D0i3 work. + */ +int skl_suspend_late_dsp(struct skl *skl) +{ + struct skl_sst *ctx = skl->skl_sst; + struct delayed_work *dwork; + + if (!ctx) + return 0; + + dwork = &ctx->d0i3.work; + + if (dwork->work.func) { + if (skl->supend_active) + flush_delayed_work(dwork); + else + cancel_delayed_work_sync(dwork); + } + + return 0; +} + int skl_suspend_dsp(struct skl *skl) { struct skl_sst *ctx = skl->skl_sst; diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index 02c273137703..e544d635de25 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -228,6 +228,15 @@ static int skl_acquire_irq(struct hdac_ext_bus *ebus, int do_disconnect) return 0; } +static int skl_suspend_late(struct device *dev) +{ + struct pci_dev *pci = to_pci_dev(dev); + struct hdac_ext_bus *ebus = pci_get_drvdata(pci); + struct skl *skl = ebus_to_skl(ebus); + + return skl_suspend_late_dsp(skl); +} + #ifdef CONFIG_PM static int _skl_suspend(struct hdac_ext_bus *ebus) { @@ -392,6 +401,7 @@ static int skl_runtime_resume(struct device *dev) static const struct dev_pm_ops skl_pm = { SET_SYSTEM_SLEEP_PM_OPS(skl_suspend, skl_resume) SET_RUNTIME_PM_OPS(skl_runtime_suspend, skl_runtime_resume, NULL) + .suspend_late = skl_suspend_late, }; /* diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h index 88ba54ba5f72..4986e3929dd3 100644 --- a/sound/soc/intel/skylake/skl.h +++ b/sound/soc/intel/skylake/skl.h @@ -124,6 +124,7 @@ struct nhlt_specific_cfg *skl_get_ep_blob(struct skl *skl, u32 instance, int skl_nhlt_update_topology_bin(struct skl *skl); int skl_init_dsp(struct skl *skl); int skl_free_dsp(struct skl *skl); +int skl_suspend_late_dsp(struct skl *skl); int skl_suspend_dsp(struct skl *skl); int skl_resume_dsp(struct skl *skl); void skl_cleanup_resources(struct skl *skl);