From patchwork Tue Oct 11 09:25:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Govindapillai, Vinod" X-Patchwork-Id: 13003786 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 034A7C433FE for ; Tue, 11 Oct 2022 09:25:33 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7A8E910E206; Tue, 11 Oct 2022 09:25:32 +0000 (UTC) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 90FBC10E206 for ; Tue, 11 Oct 2022 09:25:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1665480328; x=1697016328; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=GB7AFFmwjmdK/flOTySr8LGAa9tFr8IzhQ6DOhO14d8=; b=AbHeYezt45VpNzVzmTP6GV2pJRhY1wbCjr6IkQcfbqNQNg1tdn1CGQgS gpwJNhTAB+Y4L+hX8Ft5XCuPZdtzSY4ZJZKfYpgla852doP9tEq/mkjUr Xop+Mf+rhFo5Ky2yUjWuJRh+k2qGaBjtarcomTrrYjlVeI8ENos0SAxSS BMN+6TBOMCSvW0Uo2EuUAwrVujT4DUxExxf4fkNFGH9LPaopwTjZE2RAM Up5/vkHAxFsuOytac7C3iUb/UqCFOF7jox4sufsBvDG5SiyC0pOtMGBcE awbr6iW0MJwsS/7IM6fYnxWWKW5rI7cANscaUZWnGwcu/y1DTyA2T56dm w==; X-IronPort-AV: E=McAfee;i="6500,9779,10496"; a="284838054" X-IronPort-AV: E=Sophos;i="5.95,176,1661842800"; d="scan'208";a="284838054" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Oct 2022 02:25:28 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10496"; a="730908283" X-IronPort-AV: E=Sophos;i="5.95,176,1661842800"; d="scan'208";a="730908283" Received: from mlankhor-desk.ger.corp.intel.com (HELO vgovind2-mobl3.intel.com) ([10.252.41.37]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Oct 2022 02:25:26 -0700 From: Vinod Govindapillai To: intel-gfx@lists.freedesktop.org Date: Tue, 11 Oct 2022 12:25:06 +0300 Message-Id: <20221011092508.445966-1-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, ville.syrjala@intel.com, lucas.demarchi@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(+)