From patchwork Fri Oct 7 11:39:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Govindapillai X-Patchwork-Id: 13001017 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 16D18C433FE for ; Fri, 7 Oct 2022 11:40:21 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DC96410E94E; Fri, 7 Oct 2022 11:40:20 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id C645710E94E for ; Fri, 7 Oct 2022 11:40:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1665142814; x=1696678814; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=uZlZohYfsH6KhpKA6ohOkiJw6TC0/7m0ep8ZP3XV6vA=; b=ji/xXGnfMV9K44TrlKzuJzzqBTsE/ik9Zqnj8KFDQ28fJCY/DnDGSHSg h4K+zJaPi55W30WvCIGKvnH3wvvPPnL0alBYjTqzDM9ipUfax922TqAMO /Rb+zPE54Egr8BtB3c/4mT7W9V3YiHKUGrWJNuXH6JXqgimKQkOsm04Ev J66xUr7xP9UikpQPCazHIDQkHckLCtaSN9K7a4dVfMWLIsldRf5mPSjDW D35xnMbv8py+W7cLYwsSC/8wPLZUns1Id6M3+jCZYmQU200lwQlMXejjv VIKDiheMlK+MYRpXiwdKHcYTyI83zlt9o4SzJ10mRpY01k2Pdfs1robYb Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10492"; a="304715009" X-IronPort-AV: E=Sophos;i="5.95,166,1661842800"; d="scan'208";a="304715009" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Oct 2022 04:40:13 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10492"; a="714247879" X-IronPort-AV: E=Sophos;i="5.95,166,1661842800"; d="scan'208";a="714247879" Received: from tmelzer-mobl.ger.corp.intel.com (HELO vgovind2-mobl3.intel.com) ([10.252.61.59]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Oct 2022 04:40:12 -0700 From: Vinod Govindapillai To: intel-gfx@lists.freedesktop.org Date: Fri, 7 Oct 2022 14:39:56 +0300 Message-Id: <20221007113958.1890779-1-vinod.govindapillai@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH 0/2] Provision to ignore long HPDs in CI systems X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" As some faulty displays generate long HPD even while connected to ports, can cause CI execution issues. Add a provision to ignore such long HPDs in such systems with control through debugfs Vinod Govindapillai (2): drm/i915/display: ignore long HPDs based on a flag drm/i915: debugfs entry to control ignore long hpd flag .../gpu/drm/i915/display/intel_display_core.h | 11 ++++++++ drivers/gpu/drm/i915/display/intel_dp.c | 7 ++++++ drivers/gpu/drm/i915/display/intel_hotplug.c | 25 +++++++++++++++++++ 3 files changed, 43 insertions(+)