From patchwork Wed Feb 8 10:50:56 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Srinivas, Vidya" X-Patchwork-Id: 9562173 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 2F1EF60434 for ; Wed, 8 Feb 2017 10:39:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 20DB828113 for ; Wed, 8 Feb 2017 10:39:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1499A28488; Wed, 8 Feb 2017 10:39:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D43752094F for ; Wed, 8 Feb 2017 10:39:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 65FD76E830; Wed, 8 Feb 2017 10:39:14 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 41D936E830 for ; Wed, 8 Feb 2017 10:39:13 +0000 (UTC) Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga103.jf.intel.com with ESMTP; 08 Feb 2017 02:39:13 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,346,1477983600"; d="scan'208";a="222748285" Received: from vsrini4-ubuntu-intel.iind.intel.com ([10.223.26.91]) by fmsmga004.fm.intel.com with ESMTP; 08 Feb 2017 02:39:11 -0800 From: Vidya Srinivas To: intel-gfx@lists.freedesktop.org Date: Wed, 8 Feb 2017 16:20:56 +0530 Message-Id: <1486551058-22596-8-git-send-email-vidya.srinivas@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1486551058-22596-1-git-send-email-vidya.srinivas@intel.com> References: <1486551058-22596-1-git-send-email-vidya.srinivas@intel.com> Cc: jani.nikula@intel.com, Vidya Srinivas Subject: [Intel-gfx] [PATCH 7/9] drm/i915/bxt: Disable device ready before shutdown command X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Uma Shankar Disable device ready before MIPI port shutdown command. This helps to avoid mipi split screen issues. Signed-off-by: Uma Shankar Signed-off-by: Vidya Srinivas Reviewed-by: Bob Paauwe --- drivers/gpu/drm/i915/intel_dsi.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 808158f..12aeee1 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -603,6 +603,8 @@ static void intel_dsi_pre_disable(struct intel_encoder *encoder, struct intel_crtc_state *old_crtc_state, struct drm_connector_state *old_conn_state) { + struct drm_device *dev = encoder->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base); enum port port; @@ -610,6 +612,15 @@ static void intel_dsi_pre_disable(struct intel_encoder *encoder, intel_panel_disable_backlight(intel_dsi->attached_connector); + /* + * Disable Device ready before the port shutdown in order + * to avoid split screen + */ + if (IS_BROXTON(dev_priv)) { + for_each_dsi_port(port, intel_dsi->ports) + I915_WRITE(MIPI_DEVICE_READY(port), 0); + } + if (is_vid_mode(intel_dsi)) { /* Send Shutdown command to the panel in LP mode */ for_each_dsi_port(port, intel_dsi->ports)