From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6774C33CB1 for ; Fri, 17 Jan 2020 15:02:43 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 8D6472083E for ; Fri, 17 Jan 2020 15:02:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8D6472083E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1B2DA6F5C6; Fri, 17 Jan 2020 15:02:43 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id D24A26F5C6 for ; Fri, 17 Jan 2020 15:02:41 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Jan 2020 07:02:39 -0800 X-IronPort-AV: E=Sophos;i="5.70,330,1574150400"; d="scan'208";a="218930816" Received: from jnikula-mobl3.fi.intel.com (HELO localhost) ([10.237.66.161]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Jan 2020 07:02:39 -0800 From: Jani Nikula To: intel-gfx@lists.freedesktop.org Date: Fri, 17 Jan 2020 17:02:35 +0200 Message-Id: <20200117150235.22471-1-jani.nikula@intel.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH] drm/i915/dp: debug log max vswing and pre-emphasis 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Provide slightly more debugging help. Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_dp.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 4074d83b1a5f..c26be4421f01 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -4142,11 +4142,14 @@ intel_dp_set_signal_levels(struct intel_dp *intel_dp) if (mask) DRM_DEBUG_KMS("Using signal levels %08x\n", signal_levels); - DRM_DEBUG_KMS("Using vswing level %d\n", - train_set & DP_TRAIN_VOLTAGE_SWING_MASK); - DRM_DEBUG_KMS("Using pre-emphasis level %d\n", - (train_set & DP_TRAIN_PRE_EMPHASIS_MASK) >> - DP_TRAIN_PRE_EMPHASIS_SHIFT); + DRM_DEBUG_KMS("Using vswing level %d%s\n", + train_set & DP_TRAIN_VOLTAGE_SWING_MASK, + train_set & DP_TRAIN_MAX_SWING_REACHED ? " (max)" : ""); + DRM_DEBUG_KMS("Using pre-emphasis level %d%s\n", + (train_set & DP_TRAIN_PRE_EMPHASIS_MASK) >> + DP_TRAIN_PRE_EMPHASIS_SHIFT, + train_set & DP_TRAIN_MAX_PRE_EMPHASIS_REACHED ? + " (max)" : ""); intel_dp->DP = (intel_dp->DP & ~mask) | signal_levels; -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx