From patchwork Mon Mar 16 10:37:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Manna, Animesh" X-Patchwork-Id: 11440145 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C6B0A14B4 for ; Mon, 16 Mar 2020 10:49:54 +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 AE5E020719 for ; Mon, 16 Mar 2020 10:49:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AE5E020719 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 3C57E6E3E3; Mon, 16 Mar 2020 10:49:54 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 84BE66E3E3 for ; Mon, 16 Mar 2020 10:49:53 +0000 (UTC) IronPort-SDR: /whVmN50zHrDe9N45AGue48NVTrituelEUeQ+guruQcBcNQMtWvbyaPFwMdyBranTvRr3Ux9vu drvr33kFvtDw== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2020 03:49:53 -0700 IronPort-SDR: xr9hcQkXZSETVfwlHmliIxm9nh5eNBQ8JRBgM90Rdnzfv+/XsmIR8RFE7QfxIXs19aJhdmrQEi /IqwO66eQN2Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,560,1574150400"; d="scan'208";a="417099551" Received: from unknown (HELO amanna.iind.intel.com) ([10.223.74.53]) by orsmga005.jf.intel.com with ESMTP; 16 Mar 2020 03:49:51 -0700 From: Animesh Manna To: intel-gfx@lists.freedesktop.org Date: Mon, 16 Mar 2020 16:07:56 +0530 Message-Id: <20200316103759.12867-5-animesh.manna@intel.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20200316103759.12867-1-animesh.manna@intel.com> References: <20200316103759.12867-1-animesh.manna@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v5 4/7] drm/i915/dp: Preparation for DP phy compliance auto test 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" During DP phy compliance auto test mode, sink will request combination of different test pattern with differnt level of vswing, pre-emphasis. Function added to prepare for it. Reviewed-by: Manasi Navare Signed-off-by: Animesh Manna --- .../drm/i915/display/intel_display_types.h | 1 + drivers/gpu/drm/i915/display/intel_dp.c | 24 +++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 5e00e611f077..42d0b102c2cf 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1238,6 +1238,7 @@ struct intel_dp_compliance_data { u8 video_pattern; u16 hdisplay, vdisplay; u8 bpc; + struct drm_dp_phy_test_params phytest; }; struct intel_dp_compliance { diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 0a417cd2af2b..16a4a48c8168 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -5001,9 +5001,33 @@ static u8 intel_dp_autotest_edid(struct intel_dp *intel_dp) return test_result; } +static u8 intel_dp_prepare_phytest(struct intel_dp *intel_dp) +{ + struct drm_dp_phy_test_params *data = + &intel_dp->compliance.test_data.phytest; + + if (drm_dp_get_phy_test_pattern(&intel_dp->aux, data)) { + DRM_DEBUG_KMS("DP Phy Test pattern AUX read failure\n"); + return DP_TEST_NAK; + } + + /* + * link_mst is set to false to avoid executing mst related code + * during compliance testing. + */ + intel_dp->link_mst = false; + + return DP_TEST_ACK; +} + static u8 intel_dp_autotest_phy_pattern(struct intel_dp *intel_dp) { u8 test_result = DP_TEST_NAK; + + test_result = intel_dp_prepare_phytest(intel_dp); + if (test_result != DP_TEST_ACK) + DRM_ERROR("Phy test preparation failed\n"); + return test_result; }