From patchwork Tue Oct 8 16:44:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre-Louis Bossart X-Patchwork-Id: 11179911 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 789AD1668 for ; Tue, 8 Oct 2019 16:47:31 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 0C5F6217D7 for ; Tue, 8 Oct 2019 16:47:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="OL7L9xGG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0C5F6217D7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org 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 3EBEA1664; Tue, 8 Oct 2019 18:46:39 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 3EBEA1664 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1570553249; bh=ED5wG4vrMszgavs7MuR3EfN9VgTiZdx0odMfHRx40sQ=; h=From:To:Date:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=OL7L9xGGB/jxORbkyIw19q7B3czN/r1dKqVYCMzfKwco3B0SsCr1z+GLTQ5FV1TL4 jAjG8M5CHeI6VUchu0IXhvjARe6fJ4TKhn4ZYvnvtBGRrZVYExjJ7i9TVoxKeFneYD vqaA4KKawR4wk3HizljSLebUDdEv644+7lJPc8P0= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id B3392F800BF; Tue, 8 Oct 2019 18:44:58 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id A7641F805FE; Tue, 8 Oct 2019 18:44:55 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on alsa1.perex.cz X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_NONE,URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) (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 694DAF80322 for ; Tue, 8 Oct 2019 18:44:50 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 694DAF80322 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Oct 2019 09:44:48 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,270,1566889200"; d="scan'208";a="218338329" Received: from kwwong-mobl.amr.corp.intel.com (HELO pbossart-mobl3.intel.com) ([10.251.150.53]) by fmsmga004.fm.intel.com with ESMTP; 08 Oct 2019 09:44:48 -0700 From: Pierre-Louis Bossart To: alsa-devel@alsa-project.org Date: Tue, 8 Oct 2019 11:44:37 -0500 Message-Id: <20191008164443.1358-4-pierre-louis.bossart@linux.intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191008164443.1358-1-pierre-louis.bossart@linux.intel.com> References: <20191008164443.1358-1-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Cc: tiwai@suse.de, broonie@kernel.org, Pierre-Louis Bossart , Kai Vehmanen Subject: [alsa-devel] [PATCH 3/9] ASoC: SOF: acpi: add debug module param 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" Add debug parameter for snd-sof-acpi. One of the usages for this debug parameter to disable pm_runtime, which can be useful for platform bringup, or keep the parent device active while enabling pm_runtime for child devices (e.g. with SoundWire or MFD). This can also be useful to measure suspend-resume latencies or child devices. Signed-off-by: Kai Vehmanen Signed-off-by: Pierre-Louis Bossart --- sound/soc/sof/sof-acpi-dev.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/sound/soc/sof/sof-acpi-dev.c b/sound/soc/sof/sof-acpi-dev.c index ea7b8b895412..df318f50dd0b 100644 --- a/sound/soc/sof/sof-acpi-dev.c +++ b/sound/soc/sof/sof-acpi-dev.c @@ -29,6 +29,12 @@ static char *tplg_path; module_param(tplg_path, charp, 0444); MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology."); +static int sof_acpi_debug; +module_param_named(sof_acpi_debug, sof_acpi_debug, int, 0444); +MODULE_PARM_DESC(sof_acpi_debug, "SOF ACPI debug options (0x0 all off)"); + +#define SOF_ACPI_DISABLE_PM_RUNTIME BIT(0) + #if IS_ENABLED(CONFIG_SND_SOC_SOF_HASWELL) static const struct sof_dev_desc sof_acpi_haswell_desc = { .machines = snd_soc_acpi_intel_haswell_machines, @@ -121,6 +127,9 @@ static const struct dev_pm_ops sof_acpi_pm = { static void sof_acpi_probe_complete(struct device *dev) { + if (sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME) + return; + /* allow runtime_pm */ pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS); pm_runtime_use_autosuspend(dev); @@ -221,7 +230,8 @@ static int sof_acpi_probe(struct platform_device *pdev) static int sof_acpi_remove(struct platform_device *pdev) { - pm_runtime_disable(&pdev->dev); + if (!(sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME)) + pm_runtime_disable(&pdev->dev); /* call sof helper for DSP hardware remove */ snd_sof_device_remove(&pdev->dev);