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 X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=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 EA727C49ED7 for ; Fri, 13 Sep 2019 13:20:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C1C6B214AF for ; Fri, 13 Sep 2019 13:20:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568380829; bh=8TkD0+W9zck4fhl47AiNSE+1H/b1ME/YVFvULp6mZWM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=HkDHriF3U+4yg1r4wMiQ60Jk/dJYYsyyPs+H4mJ8wmVVYU3RtMvf7TDMSGSic8Sqq QPPG9E6ELmykyxS8lG96AFTHWRPdervhwYlczseaonh3cjLZvWR2h9Z+F8SA9kFmE3 oRPfxazCxEqh8Rna7r5H5EIa1cxSlDjcxt/fnBQY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390584AbfIMNU2 (ORCPT ); Fri, 13 Sep 2019 09:20:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:49342 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390026AbfIMNUZ (ORCPT ); Fri, 13 Sep 2019 09:20:25 -0400 Received: from localhost (unknown [104.132.45.99]) (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 E905420717; Fri, 13 Sep 2019 13:20:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568380824; bh=8TkD0+W9zck4fhl47AiNSE+1H/b1ME/YVFvULp6mZWM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OGZ89glM2j6CEsqhtzc6pmAV4PgzZSFDQGr4X8fjqq4eG9EhQOFsui6Hc2DmUEoBx omXUN9lF3tcNEROUo8kZRJEYLXLmI6QzFgF+28VAgQH0AKj2joz+8hjADascv4T0N2 5+04Mr2PzKnp+023IjzcVA+wlhaBVjonWBV3zPI4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Iwai , Sasha Levin , Todd Brandt Subject: [PATCH 4.19 168/190] ALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips Date: Fri, 13 Sep 2019 14:07:03 +0100 Message-Id: <20190913130613.265417784@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190913130559.669563815@linuxfoundation.org> References: <20190913130559.669563815@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ Upstream commit 2756d9143aa517b97961e85412882b8ce31371a6 ] It turned out that the recent Intel HD-audio controller chips show a significant stall during the system PM resume intermittently. It doesn't happen so often and usually it may read back successfully after one or more seconds, but in some rare worst cases the driver went into fallback mode. After trial-and-error, we found out that the communication stall seems covered by issuing the sync after each verb write, as already done for AMD and other chipsets. So this patch enables the write-sync flag for the recent Intel chips, Skylake and onward, as a workaround. Also, since Broxton and co have the very same driver flags as Skylake, refer to the Skylake driver flags instead of defining the same contents again for simplification. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201901 Reported-and-tested-by: Todd Brandt Cc: Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/pci/hda/hda_intel.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 7a3e34b120b33..c3e3d80ff7203 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -329,13 +329,11 @@ enum { #define AZX_DCAPS_INTEL_SKYLAKE \ (AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\ + AZX_DCAPS_SYNC_WRITE |\ AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT |\ AZX_DCAPS_I915_POWERWELL) -#define AZX_DCAPS_INTEL_BROXTON \ - (AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\ - AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT |\ - AZX_DCAPS_I915_POWERWELL) +#define AZX_DCAPS_INTEL_BROXTON AZX_DCAPS_INTEL_SKYLAKE /* quirks for ATI SB / AMD Hudson */ #define AZX_DCAPS_PRESET_ATI_SB \ -- 2.20.1