From patchwork Sat Oct 20 19:13:05 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Vetter X-Patchwork-Id: 1622031 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork1.kernel.org (Postfix) with ESMTP id 615E63FCFC for ; Sat, 20 Oct 2012 19:13:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4308F9EB36 for ; Sat, 20 Oct 2012 12:13:37 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-wg0-f43.google.com (mail-wg0-f43.google.com [74.125.82.43]) by gabe.freedesktop.org (Postfix) with ESMTP id 1885E9E747 for ; Sat, 20 Oct 2012 12:13:16 -0700 (PDT) Received: by mail-wg0-f43.google.com with SMTP id dq11so988390wgb.12 for ; Sat, 20 Oct 2012 12:13:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id:x-mailer; bh=1kKbEg3LQAl49MWX9Y/+EcwKbTTvJ46aGdP6W5qRz1c=; b=Gw3UVvI1dSXllvU5vEvibcE/wlzXJGJuN+UqM5qbqj79TPusbobdqYzfJrtAq26MQJ 1Wy2A1RBo7XY+GRKaELugFeGvmSJCwWrNrr88fzpG/mk76oVFaH5MQM5mn3lyBahFyeN f8jr4EFXzHDLAzT8q0eKQzqywEgRNr48id98s= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:x-gm-message-state; bh=1kKbEg3LQAl49MWX9Y/+EcwKbTTvJ46aGdP6W5qRz1c=; b=mr/XWiumi//3ncsmMxi9sL9HnYbDcoEZ4Fjfs8uFDETDeay/vtcwHYvas6urmg2SY2 im0GzmVWaaFDuI5ixZBm+sA7qqjiI9i04Thl4huiEBJanA5N9HXbjWH/zbA8SQRqcPJ3 +oKEkBZeaBPUHqr8hJn5lpn9tk9WYBLYQjAPGYrOlXnDfjdjUVmNljuJBwbTAUduW9BT IVIZsL9spJtwtl7fpFw893ZVhHSMZnM2bgthlPIPymk5Gacr6z3ifZoSnYzsYVe4mObz 53hlBLLRreoWZ6+F44+RTTbxxhm6jmFyFcAzp3Ij3l3s5hpUOYi8uUR/Isz3hGiE3Yuz HtYg== Received: by 10.216.140.135 with SMTP id e7mr2677590wej.149.1350760395753; Sat, 20 Oct 2012 12:13:15 -0700 (PDT) Received: from bremse.ffwll.local (178-83-130-250.dynamic.hispeed.ch. [178.83.130.250]) by mx.google.com with ESMTPS id hb6sm4979125wib.7.2012.10.20.12.13.14 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 20 Oct 2012 12:13:15 -0700 (PDT) From: Daniel Vetter To: Intel Graphics Development Date: Sat, 20 Oct 2012 21:13:05 +0200 Message-Id: <1350760385-16634-1-git-send-email-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 1.7.11.4 X-Gm-Message-State: ALoCoQkAJipG0aE3oyXxflf0E9sl+aZ1G4Eumkc40hxwTdSYLWNFGiXG7USL2MP5u0tw7GEd2tox Cc: Daniel Vetter Subject: [Intel-gfx] [PATCH] drm/i915/dp: actually nack test request X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org ... like the comment says. No idea whether this has any effect, but I guess it's better to not lie to the display by acking a test request and never following through with it. Signed-off-by: Daniel Vetter Reviewed-by: Chris Wilson --- drivers/gpu/drm/i915/intel_dp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index b9b9d08..8228083 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -2125,7 +2125,7 @@ static void intel_dp_handle_test_request(struct intel_dp *intel_dp) { /* NAK by default */ - intel_dp_aux_native_write_1(intel_dp, DP_TEST_RESPONSE, DP_TEST_ACK); + intel_dp_aux_native_write_1(intel_dp, DP_TEST_RESPONSE, DP_TEST_NAK); } /*