From patchwork Tue Jul 28 13:19:43 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomeu Vizoso X-Patchwork-Id: 501213 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 311A9140AF3 for ; Tue, 28 Jul 2015 23:24:28 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=yX7LmF0y; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755370AbbG1NVA (ORCPT ); Tue, 28 Jul 2015 09:21:00 -0400 Received: from mail-wi0-f180.google.com ([209.85.212.180]:36820 "EHLO mail-wi0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755456AbbG1NU6 (ORCPT ); Tue, 28 Jul 2015 09:20:58 -0400 Received: by wicgb10 with SMTP id gb10so156503309wic.1; Tue, 28 Jul 2015 06:20:56 -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=hAe5BUX/Y2P7IzvmC01oMLpNvO57Np5VD1HiahnhM48=; b=yX7LmF0yNSLNDXyIhrLF/Atz7V5tmqQXom1jVpgQGHftII3xQjlK7POJ4eJlhWmTip 0QL+xYpLFoZK2o6fO57ONOWxR0yWkhxp649QBfVFqdoLf6S4ZrFH5Y7SvJrL9wFY1IIm TUbyc+bYreRBqQ/rkFBRTcSYXrswfbEg/SOFDb3XJyuSMrNmQNJqyXZ8YyhjTuq2A856 6ZTq7dBXy9+/aDDisRDUmj1/cmi3VtgWNp5WYpGxz4xEaK1q5MeI3G8wUmO9gUCaTajm CRB0OlIeiJh7aXOrRoaq4hhNr5Jy9ZyeVL+RMHtxWNBD3kh8bjLSWyIFSiemyjWSc/2c I/oQ== X-Received: by 10.194.120.198 with SMTP id le6mr65459984wjb.133.1438089656829; Tue, 28 Jul 2015 06:20:56 -0700 (PDT) Received: from cizrna.lan ([109.72.12.179]) by smtp.gmail.com with ESMTPSA id h9sm33265696wjx.20.2015.07.28.06.20.54 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 28 Jul 2015 06:20:56 -0700 (PDT) From: Tomeu Vizoso To: linux-kernel@vger.kernel.org Cc: Stephen Warren , Javier Martinez Canillas , Mark Brown , Thierry Reding , "Rafael J. Wysocki" , linux-arm-kernel@lists.infradead.org, Dmitry Torokhov , devicetree@vger.kernel.org, Linus Walleij , linux-acpi@vger.kernel.org, Arnd Bergmann , Tomeu Vizoso , =?UTF-8?q?Terje=20Bergstr=C3=B6m?= , dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, Alexandre Courbot , David Airlie Subject: [PATCH v2 12/22] drm/tegra: Probe dpaux devices on demand Date: Tue, 28 Jul 2015 15:19:43 +0200 Message-Id: <1438089593-7696-13-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1438089593-7696-1-git-send-email-tomeu.vizoso@collabora.com> References: <1438089593-7696-1-git-send-email-tomeu.vizoso@collabora.com> Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org When looking up a dpaux device through its firmware 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 v2: None drivers/gpu/drm/tegra/dpaux.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c index 07b26972f487..9a793158a571 100644 --- a/drivers/gpu/drm/tegra/dpaux.c +++ b/drivers/gpu/drm/tegra/dpaux.c @@ -394,6 +394,8 @@ struct tegra_dpaux *tegra_dpaux_find_by_of_node(struct device_node *np) { struct tegra_dpaux *dpaux; + fwnode_ensure_device(&np->fwnode); + mutex_lock(&dpaux_lock); list_for_each_entry(dpaux, &dpaux_list, list)