From patchwork Tue May 3 10:57:55 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Archit Taneja X-Patchwork-Id: 9002811 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 2E72B9F372 for ; Tue, 3 May 2016 10:58:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 676A9201B4 for ; Tue, 3 May 2016 10:58:22 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 94F2E201C7 for ; Tue, 3 May 2016 10:58:21 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ECDE96E75C; Tue, 3 May 2016 10:58:20 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by gabe.freedesktop.org (Postfix) with ESMTPS id E4D176E75C for ; Tue, 3 May 2016 10:58:18 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id AF28761317; Tue, 3 May 2016 10:58:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from localhost (unknown [202.46.23.61]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: architt@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 545AA6133F; Tue, 3 May 2016 10:58:16 +0000 (UTC) From: Archit Taneja To: robdclark@gmail.com, robh@kernel.org Subject: [PATCH 3/9] drm/msm/mdp: mdp4: Update LCDC/LVDS port parsing Date: Tue, 3 May 2016 16:27:55 +0530 Message-Id: <1462273081-5814-4-git-send-email-architt@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1462273081-5814-1-git-send-email-architt@codeaurora.org> References: <1462273081-5814-1-git-send-email-architt@codeaurora.org> Cc: devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The LCDC port is the first in the list of the output ports in MDP4. Mention this explicitly in the driver. Signed-off-by: Archit Taneja --- drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c index f8e0cea..cd129f4 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c @@ -263,9 +263,13 @@ static struct device_node *mdp4_detect_lcdc_panel(struct drm_device *dev) struct device_node *endpoint, *panel_node; struct device_node *np = dev->dev->of_node; - endpoint = of_graph_get_next_endpoint(np, NULL); + /* + * LCDC/LVDS is the first port described in the list of ports in the + * MDP4 DT node. + */ + endpoint = of_graph_get_endpoint_by_regs(np, 0, -1); if (!endpoint) { - DBG("no endpoint in MDP4 to fetch LVDS panel\n"); + DBG("no LVDS panel remote endpoint\n"); return NULL; }