From patchwork Tue Oct 8 11:55:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Wang X-Patchwork-Id: 1173260 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=canonical.com Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 46nbR22Yfwz9sPT; Tue, 8 Oct 2019 22:56:14 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1iHo65-0002L2-8H; Tue, 08 Oct 2019 11:56:09 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1iHo64-0002Kw-Iq for kernel-team@lists.ubuntu.com; Tue, 08 Oct 2019 11:56:08 +0000 Received: from [111.196.75.45] (helo=localhost.localdomain) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1iHo63-00061R-NF for kernel-team@lists.ubuntu.com; Tue, 08 Oct 2019 11:56:08 +0000 From: Hui Wang To: kernel-team@lists.ubuntu.com Subject: [SRU][D/OEM-B-OSP1/E/unstable][PATCH 0/2] drm/i915: Fix the issue of "azx_get_response timeout" for hdmi audio on ICL platforms Date: Tue, 8 Oct 2019 19:55:48 +0800 Message-Id: <20191008115552.10791-1-hui.wang@canonical.com> X-Mailer: git-send-email 2.17.1 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/1847192 Since Bionic kernel doesn't support ICL platforms (i915), so these two patches will not be sent to Bionic kernel. [Impact] On the ICL platforms, the hdmi can't work well, the audio driver will print "azx_get_response timeout" randomly, then the whole audio doesn't work anymore. [Fix] Intel provide these two fixes to us, and we tested these two patches, it really fixed the issue. [Test Case] Boot and check the hdmi audio, then suspend and resume, check the hdmi audio, all work well. [Regression Risk] Low, Only enable the audio PIN and enable the clock for ICL. we tested on both ICL and non-ICL, all worked well as before. Kai Vehmanen (2): UBUNTU: SAUCE: drm/i915: Fix audio power up sequence for gen10+ display UBUNTU: SAUCE: drm/i915: extend audio CDCLK>=2*BCLK constraint to more platforms drivers/gpu/drm/i915/i915_reg.h | 3 +++ drivers/gpu/drm/i915/intel_audio.c | 11 ++++++++--- 2 files changed, 11 insertions(+), 3 deletions(-) Acked-by: Stefan Bader