From patchwork Tue Aug 13 10:08:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Wang X-Patchwork-Id: 1146168 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 4677jV3c5jz9sND; Tue, 13 Aug 2019 20:09:18 +1000 (AEST) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1hxTjt-000102-Ar; Tue, 13 Aug 2019 10:09:13 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.86_2) (envelope-from ) id 1hxTjs-0000zw-Ak for kernel-team@lists.ubuntu.com; Tue, 13 Aug 2019 10:09:12 +0000 Received: from [221.221.96.122] (helo=localhost.localdomain) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1hxTjr-000878-Ct for kernel-team@lists.ubuntu.com; Tue, 13 Aug 2019 10:09:12 +0000 From: Hui Wang To: kernel-team@lists.ubuntu.com Subject: [SRU][OEM-OSP1-B][PATCH 0/1] drm/i915: revert the patch of "set disable_power_well=0 for icl temporarily" Date: Tue, 13 Aug 2019 18:08:55 +0800 Message-Id: <20190813100856.4232-1-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: http://bugs.launchpad.net/bugs/1839950 [Impact] Two weeks ago, we sent the patch to set disable_power_well=0, this is because we found sometimes the hdmi audio driver printed out the timeout errors when accessing the codec. But recently the ODM told us those machines had some HW or BIOS issues, we can't reproduce the timeout errors on the new machines anymore even without this patch. And moreover we need put the CPU into PC10 power state to meet the E-star starndard, we need to revert this patch. [Fix] Revert the patch. [Test Case] Tested on the new icl laptops, we have not reproduce the timeout errors, and The PC can enter PC10. [Regression Risk] Low. We have done many tests. Hui Wang (1): Revert "UBUNTU: SAUCE: i915: set disable_power_well=0 for icl temporarily" drivers/gpu/drm/i915/intel_runtime_pm.c | 5 ----- 1 file changed, 5 deletions(-) Acked-by: Anthony Wong