From patchwork Mon Sep 7 12:23:34 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomeu Vizoso X-Patchwork-Id: 7134131 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 0349D9F380 for ; Mon, 7 Sep 2015 12:24:34 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F0B6B206D6 for ; Mon, 7 Sep 2015 12:24:28 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 1E15C206FA for ; Mon, 7 Sep 2015 12:24:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 291B76E43B; Mon, 7 Sep 2015 05:24:26 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-wi0-f169.google.com (mail-wi0-f169.google.com [209.85.212.169]) by gabe.freedesktop.org (Postfix) with ESMTPS id 53A926E43B for ; Mon, 7 Sep 2015 05:24:24 -0700 (PDT) Received: by wiclk2 with SMTP id lk2so82445412wic.1 for ; Mon, 07 Sep 2015 05:24:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=8UxZY0LWBvY8nWO4Ut0zN8Y7Z0D+EGIU+f3um8z3Qc4=; b=XlktsAoUj1Jyt/pfRum1ttdHroZesx0D+Etm42FgfaUIVA7Zkk6D3c+pgrXdzjwnJV 3HL9ikUF+LEBtta30oxyReEElDm6A1j6XSmwzDCfMGgDXV7LnCy6xMqx0RDgGUWA9fd6 xOkUoV7Th0TbkS8eEG/uH6DCY7gXWJ2CPd1/3NMkoDS2VTq4wrc6sSt0ATjuWCrpatEu TEyiOoNZ3MXLcv6AqWOml98/3yMrg5GGsfER0L6zkbOo5nS1ndPAmJBRSCCZiT0kxism JBWIb0os2krcaO8/aAbZ6EKbucN4sm6k+ppkog/yg9M6X59iKpK03b2CSx7lM+6Cf69q oKHg== X-Received: by 10.194.95.71 with SMTP id di7mr35843988wjb.125.1441628662731; Mon, 07 Sep 2015 05:24:22 -0700 (PDT) Received: from cizrna.lan ([109.72.12.78]) by smtp.gmail.com with ESMTPSA id cm6sm15438wib.22.2015.09.07.05.24.21 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Sep 2015 05:24:21 -0700 (PDT) From: Tomeu Vizoso To: linux-kernel@vger.kernel.org Subject: [PATCH v4 09/22] drm: Probe panels on demand Date: Mon, 7 Sep 2015 14:23:34 +0200 Message-Id: <1441628627-5143-10-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1441628627-5143-1-git-send-email-tomeu.vizoso@collabora.com> References: <1441628627-5143-1-git-send-email-tomeu.vizoso@collabora.com> Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, Arnd Bergmann , Stephen Warren , Tomeu Vizoso , Dmitry Torokhov , "Rafael J. Wysocki" , Rob Herring , Javier Martinez Canillas , Mark Brown , linux-arm-kernel@lists.infradead.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-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When looking up a panel through its OF node, probe it if it hasn't already. The goal is to reduce deferred probes to a minimum, as it makes it very cumbersome to find out why a device failed to probe, and can introduce very big delays in when a critical device is probed. Signed-off-by: Tomeu Vizoso --- Changes in v4: None Changes in v3: None Changes in v2: None drivers/gpu/drm/drm_panel.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c index 2ef988e037b7..ad79a7b9c74d 100644 --- a/drivers/gpu/drm/drm_panel.c +++ b/drivers/gpu/drm/drm_panel.c @@ -23,6 +23,7 @@ #include #include +#include #include #include @@ -80,6 +81,8 @@ struct drm_panel *of_drm_find_panel(struct device_node *np) { struct drm_panel *panel; + of_device_probe(np); + mutex_lock(&panel_lock); list_for_each_entry(panel, &panel_list, list) {