From patchwork Mon Oct 10 08:34:45 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Govindapillai X-Patchwork-Id: 13002373 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 343E4C433FE for ; Mon, 10 Oct 2022 08:35:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 526F810E462; Mon, 10 Oct 2022 08:35:05 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0BD5510E462 for ; Mon, 10 Oct 2022 08:35:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1665390902; x=1696926902; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=GB7AFFmwjmdK/flOTySr8LGAa9tFr8IzhQ6DOhO14d8=; b=XdFuFJPpLSIHTZ3u0f3z6yu9S/DB0xAzAd0wgjpVPzfzu4aHM3+MnR/w ZmiTDyU+SWYMaam1R6jdMVmabNtf2HNoYTNoHjhrfShd3+bIf1AtLBXnd txESfBVsfhhzssrclcIEon7MPPglR878j4xYYnCCVIPH0d2JosDiRT4C2 aNukXFFfQXzi6sMj2hpWPcy5XDdW7LNTchqa+brdwwPxbnwzx1isEvS55 vkmVB3ORNQxk8YIIp4zt8f8RE+aTdtrfSU9vEG7fkW0Ik1MYVjfUNeSM+ bzeqnqQZ9UqO4WkgVsBUmPJKcUFtRfyEY/uiCHBxuvhCV+k+6mSQUib8C A==; X-IronPort-AV: E=McAfee;i="6500,9779,10495"; a="291460164" X-IronPort-AV: E=Sophos;i="5.95,173,1661842800"; d="scan'208";a="291460164" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Oct 2022 01:35:01 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10495"; a="954839175" X-IronPort-AV: E=Sophos;i="5.95,173,1661842800"; d="scan'208";a="954839175" Received: from vgovind2-mobl3.tm.intel.com ([10.237.50.39]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Oct 2022 01:35:00 -0700 From: Vinod Govindapillai To: intel-gfx@lists.freedesktop.org Date: Mon, 10 Oct 2022 11:34:45 +0300 Message-Id: <20221010083447.139768-1-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 v2 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 HPDs 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/display: 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(+)