From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B8D6BC433F5 for ; Wed, 8 Dec 2021 11:24:31 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id EEDA925FE; Wed, 8 Dec 2021 12:23:39 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz EEDA925FE DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1638962670; bh=WuLdKlIXsqhUz9T/VgB8RD4uteJ9vzzwqimp1h3LeqY=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=S5hVgSwlkTaf7nNl0tw+vz9UY5IXcL1XDTtLg3obPwQ2a+p8inv2pLUgEFKqHgzxE swXd7iM8MbCQ+EeD5d+POEzhkeITpfVlJvvSq0/CS5KOdyUEfuvLt/ThHjactnRN9v F3+35lxZYMfRmt3PohchzO8jlEUrI1ZENhLIEEOs= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 22036F80623; Wed, 8 Dec 2021 12:13:03 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 96EC6F80619; Wed, 8 Dec 2021 12:13:01 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 8EFD6F80515 for ; Wed, 8 Dec 2021 12:12:54 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 8EFD6F80515 X-IronPort-AV: E=McAfee;i="6200,9189,10191"; a="236548529" X-IronPort-AV: E=Sophos;i="5.87,297,1631602800"; d="scan'208";a="236548529" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2021 03:12:54 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,297,1631602800"; d="scan'208";a="600600596" Received: from crojewsk-ctrl.igk.intel.com ([10.102.9.28]) by FMSMGA003.fm.intel.com with ESMTP; 08 Dec 2021 03:12:50 -0800 From: Cezary Rojewski To: alsa-devel@alsa-project.org Subject: [RFC 35/37] ASoC: Intel: avs: Power management Date: Wed, 8 Dec 2021 12:12:59 +0100 Message-Id: <20211208111301.1817725-36-cezary.rojewski@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211208111301.1817725-1-cezary.rojewski@intel.com> References: <20211208111301.1817725-1-cezary.rojewski@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Cezary Rojewski , upstream@semihalf.com, harshapriya.n@intel.com, yung-chuan.liao@linux.intel.com, rad@semihalf.com, pierre-louis.bossart@linux.intel.com, tiwai@suse.com, hdegoede@redhat.com, broonie@kernel.org, ranjani.sridharan@linux.intel.com, amadeuszx.slawinski@linux.intel.com, cujomalainey@chromium.org, peter.ujfalusi@linux.intel.com, lma@semihalf.com X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 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: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" To preserve power during sleep operations, handle suspend (S3), hibernation (S4) and runtime (RTD3) transitions. As flow for all of is shared, define common handlers to reduce code size. Signed-off-by: Amadeusz Sławiński Signed-off-by: Cezary Rojewski --- sound/soc/intel/avs/core.c | 124 +++++++++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+) diff --git a/sound/soc/intel/avs/core.c b/sound/soc/intel/avs/core.c index 85f28c4ffd63..6cbbdd2a80b2 100644 --- a/sound/soc/intel/avs/core.c +++ b/sound/soc/intel/avs/core.c @@ -540,6 +540,129 @@ static void avs_pci_remove(struct pci_dev *pci) #endif } +static int __maybe_unused avs_suspend_common(struct avs_dev *adev, bool low_power) +{ + struct hdac_bus *bus = &adev->base.core; + int ret; + + flush_work(&adev->probe_work); + + snd_hdac_ext_bus_link_power_down_all(bus); + + ret = avs_ipc_set_dx(adev, AVS_MAIN_CORE_MASK, false); + /* + * pm_runtime is blocked on DSP failure but system-wide suspend is not. + * Do not block entire system from suspending if that's the case. + */ + if (ret && ret != -EPERM) { + dev_err(adev->dev, "set dx failed: %d\n", ret); + return AVS_IPC_RET(ret); + } + + avs_dsp_op(adev, int_control, false); + snd_hdac_ext_bus_ppcap_int_enable(bus, false); + + ret = avs_dsp_core_disable(adev, AVS_MAIN_CORE_MASK); + if (ret < 0) { + dev_err(adev->dev, "core_mask %ld disable failed: %d\n", + AVS_MAIN_CORE_MASK, ret); + return ret; + } + + snd_hdac_ext_bus_ppcap_enable(bus, false); + /* disable LP SRAM retention */ + avs_hda_power_gating_enable(adev, false); + snd_hdac_bus_stop_chip(bus); + /* disable CG when putting controller to reset */ + avs_hdac_clock_gating_enable(bus, false); + snd_hdac_bus_enter_link_reset(bus); + avs_hdac_clock_gating_enable(bus, true); + + snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false); + + return 0; +} + +static int __maybe_unused avs_resume_common(struct avs_dev *adev, bool low_power, bool purge) +{ + struct hdac_bus *bus = &adev->base.core; + struct hdac_ext_link *hlink; + int ret; + + snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true); + avs_hdac_bus_init_chip(bus, true); + + snd_hdac_ext_bus_ppcap_enable(bus, true); + snd_hdac_ext_bus_ppcap_int_enable(bus, true); + + ret = avs_dsp_boot_firmware(adev, purge); + if (ret < 0) { + dev_err(adev->dev, "firmware boot failed: %d\n", ret); + return ret; + } + + /* turn off the links that were off before suspend */ + list_for_each_entry(hlink, &bus->hlink_list, list) { + if (!hlink->ref_count) + snd_hdac_ext_bus_link_power_down(hlink); + } + + /* check dma status and clean up CORB/RIRB buffers */ + if (!bus->cmd_dma_state) + snd_hdac_bus_stop_cmd_io(bus); + + return 0; +} + +static int __maybe_unused avs_suspend(struct device *dev) +{ + return avs_suspend_common(to_avs_dev(dev), true); +} + +static int __maybe_unused avs_resume(struct device *dev) +{ + return avs_resume_common(to_avs_dev(dev), true, true); +} + +static int __maybe_unused avs_runtime_suspend(struct device *dev) +{ + return avs_suspend_common(to_avs_dev(dev), true); +} + +static int __maybe_unused avs_runtime_resume(struct device *dev) +{ + return avs_resume_common(to_avs_dev(dev), true, false); +} + +static int __maybe_unused avs_freeze(struct device *dev) +{ + return avs_suspend_common(to_avs_dev(dev), false); +} +static int __maybe_unused avs_thaw(struct device *dev) +{ + return avs_resume_common(to_avs_dev(dev), false, true); +} + +static int __maybe_unused avs_poweroff(struct device *dev) +{ + return avs_suspend_common(to_avs_dev(dev), false); +} + +static int __maybe_unused avs_restore(struct device *dev) +{ + return avs_resume_common(to_avs_dev(dev), false, true); +} + +static const struct dev_pm_ops avs_dev_pm = { + .suspend = avs_suspend, + .resume = avs_resume, + .freeze = avs_freeze, + .thaw = avs_thaw, + .poweroff = avs_poweroff, + .restore = avs_restore, + SET_RUNTIME_PM_OPS(avs_runtime_suspend, avs_runtime_resume, NULL) +}; + static const struct pci_device_id avs_ids[] = { { 0 } }; @@ -551,6 +674,7 @@ static struct pci_driver avs_pci_driver = { .probe = avs_pci_probe, .remove = avs_pci_remove, .driver = { + .pm = &avs_dev_pm, }, }; module_pci_driver(avs_pci_driver); -- 2.25.1