From patchwork Tue Oct 11 06:34:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ankit Nautiyal X-Patchwork-Id: 13003702 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 2810AC433F5 for ; Tue, 11 Oct 2022 06:35:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EF96C10E7C3; Tue, 11 Oct 2022 06:35:22 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4128410E7B6 for ; Tue, 11 Oct 2022 06:34:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1665470085; x=1697006085; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=DqfP28f9JSyz5vK48YdZVD4bePWI6C6gdAy+MrQASkM=; b=HdLF4USvEjlcfwaPae0snragjBBXmoqWy3M0VDN6E+gVlrkVzUlTLYZs oFzYc1HJvvAZMiZAblemLjnAJRoazPTHGjqxmk63RJ3jFbPuW6BRcO/ZF 2nZJ1rmjxMZZQ3JrgOB2ip3Udx+T5hkzW+02VdaWPkPzyo8jOguWL6smS 8AFGixEMK/p0z1JdKm7WNqbbyvCCk4hxS3xophjkji/w3klJHeIWoPNim n+CgsnYKp+YJBLs09EpgwGozkVQcFblmYChBCsXRx5gBGHydy2lwZCwRZ w3p3x5s11OF5D+L0Zf0PSoHsIb29t9UBMi9IlQNRWK4hbhsOV9fYLkXCA g==; X-IronPort-AV: E=McAfee;i="6500,9779,10496"; a="302031814" X-IronPort-AV: E=Sophos;i="5.95,175,1661842800"; d="scan'208";a="302031814" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Oct 2022 23:34:36 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10496"; a="768680332" X-IronPort-AV: E=Sophos;i="5.95,175,1661842800"; d="scan'208";a="768680332" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Oct 2022 23:34:34 -0700 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org Date: Tue, 11 Oct 2022 12:04:40 +0530 Message-Id: <20221011063447.904649-2-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221011063447.904649-1-ankit.k.nautiyal@intel.com> References: <20221011063447.904649-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 1/8] drm/i915/dp: Reset frl trained flag before restarting FRL training 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" For cases where DP has HDMI2.1 sink and FRL Link issues are detected, reset the flag to state FRL trained status before restarting FRL training. Fixes: 9488a030ac91 ("drm/i915: Add support for enabling link status and recovery") Cc: Swati Sharma Cc: Ankit Nautiyal Cc: Uma Shankar (v2) Cc: Jani Nikula Signed-off-by: Ankit Nautiyal --- drivers/gpu/drm/i915/display/intel_dp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 70b06806ec0d..9133d4c65437 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -3961,6 +3961,8 @@ intel_dp_handle_hdmi_link_status_change(struct intel_dp *intel_dp) drm_dp_pcon_hdmi_frl_link_error_count(&intel_dp->aux, &intel_dp->attached_connector->base); + intel_dp->frl.is_trained = false; + /* Restart FRL training or fall back to TMDS mode */ intel_dp_check_frl_training(intel_dp); }