From patchwork Mon Sep 21 16:27:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "gregkh@linuxfoundation.org" X-Patchwork-Id: 263730 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3795DC43466 for ; Mon, 21 Sep 2020 16:37:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F0165239D0 for ; Mon, 21 Sep 2020 16:37:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600706265; bh=0AsOqjbBkPZykoJS/EiWyx0FA+xrH0LXRfn/2dLrtzc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=GhThMTnhy+yydoAuKj+zbsO5q6VaoPh9uM8eLO06FQGvw8d2Tlp9XsXyNd7R4dvPQ iBhfX1aiRvy6WQ8evWmQdp4voh+s6EOSJv+nKWp9glXrn59X4LQ6506AJsFEET8SGS yapXKadPHSjH4jJekbbWNTD8bkWBYBkn27mDZ5RQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729094AbgIUQhj (ORCPT ); Mon, 21 Sep 2020 12:37:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:38242 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729091AbgIUQhj (ORCPT ); Mon, 21 Sep 2020 12:37:39 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D45C6206B7; Mon, 21 Sep 2020 16:37:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600706258; bh=0AsOqjbBkPZykoJS/EiWyx0FA+xrH0LXRfn/2dLrtzc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EaWXP88RKv/xtjuAWXKpu+EUjPGipgLE62AIqIVnqDACbMKlAQ2ncdzcrj+74PkHf SIKgkaFCnRyKTppSIbq5hT0k0q4Yqxb37HPvicoChf9EnrHjxqZqz2FFhVPBgYaEIh B8ls6whm8r4blUP8/I1P3IWDORidoofmhe56U2qs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Rander Wang , Ranjani Sridharan , Pierre-Louis Bossart , Bard Liao , Guennadi Liakhovetski , Kai Vehmanen , Takashi Iwai , Sasha Levin Subject: [PATCH 4.14 21/94] ALSA: hda: fix a runtime pm issue in SOF when integrated GPU is disabled Date: Mon, 21 Sep 2020 18:27:08 +0200 Message-Id: <20200921162036.518984044@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200921162035.541285330@linuxfoundation.org> References: <20200921162035.541285330@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Rander Wang [ Upstream commit 13774d81f38538c5fa2924bdcdfa509155480fa6 ] In snd_hdac_device_init pm_runtime_set_active is called to increase child_count in parent device. But when it is failed to build connection with GPU for one case that integrated graphic gpu is disabled, snd_hdac_ext_bus_device_exit will be invoked to clean up a HD-audio extended codec base device. At this time the child_count of parent is not decreased, which makes parent device can't get suspended. This patch calls pm_runtime_set_suspended to decrease child_count in parent device in snd_hdac_device_exit to match with snd_hdac_device_init. pm_runtime_set_suspended can make sure that it will not decrease child_count if the device is already suspended. Signed-off-by: Rander Wang Reviewed-by: Ranjani Sridharan Reviewed-by: Pierre-Louis Bossart Reviewed-by: Bard Liao Reviewed-by: Guennadi Liakhovetski Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200902154218.1440441-1-kai.vehmanen@linux.intel.com Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/hda/hdac_device.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c index 19deb306facb7..4a843eb7cc940 100644 --- a/sound/hda/hdac_device.c +++ b/sound/hda/hdac_device.c @@ -123,6 +123,8 @@ EXPORT_SYMBOL_GPL(snd_hdac_device_init); void snd_hdac_device_exit(struct hdac_device *codec) { pm_runtime_put_noidle(&codec->dev); + /* keep balance of runtime PM child_count in parent device */ + pm_runtime_set_suspended(&codec->dev); snd_hdac_bus_remove_device(codec->bus, codec); kfree(codec->vendor_name); kfree(codec->chip_name);