From patchwork Tue May 28 03:20:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kai-Heng Feng X-Patchwork-Id: 1940203 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com (client-ip=185.125.189.65; helo=lists.ubuntu.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=patchwork.ozlabs.org) Received: from lists.ubuntu.com (lists.ubuntu.com [185.125.189.65]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VpHqf1KDzz20Q9 for ; Tue, 28 May 2024 13:21:49 +1000 (AEST) Received: from localhost ([127.0.0.1] helo=lists.ubuntu.com) by lists.ubuntu.com with esmtp (Exim 4.86_2) (envelope-from ) id 1sBnP1-0002gO-5f; Tue, 28 May 2024 03:21:31 +0000 Received: from smtp-relay-canonical-1.internal ([10.131.114.174] helo=smtp-relay-canonical-1.canonical.com) by lists.ubuntu.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1sBnP0-0002gB-8k for kernel-team@lists.ubuntu.com; Tue, 28 May 2024 03:21:30 +0000 Received: from localhost.localdomain (1.general.khfeng.us.vpn [10.172.68.174]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-1.canonical.com (Postfix) with ESMTPSA id E0C723F1CD for ; Tue, 28 May 2024 03:21:28 +0000 (UTC) From: Kai-Heng Feng To: kernel-team@lists.ubuntu.com Subject: [SRU] [N] [PATCH 0/1] Fix inaudible HDMI/DP audio on USB-C MST dock Date: Tue, 28 May 2024 11:20:46 +0800 Message-Id: <20240528032047.396520-1-kai.heng.feng@canonical.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 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: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/2064689 [Impact] HDMI/DP audio isn't working on Dell's USB-C dock. [Fix] Leave Maud/Naud as is, since the hardware programmed the right value already. [Test] HDMI/DP audio always comes out from the USB-C dock after the fix is applied. [Where problems could occur] DP/HDMI audio _might_ stop working. However, the commit has been in mainline and OEM kernel for quite a while, the absence of regression report is a good sign. Chaitanya Kumar Borah (1): drm/i915/audio: Fix audio time stamp programming for DP drivers/gpu/drm/i915/display/intel_audio.c | 113 ++------------------- 1 file changed, 8 insertions(+), 105 deletions(-) Acked-by: Thibault Ferrante Acked-by: Paolo Pisati Acked-by: Andrei Gherzan