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: 6884991 Return-Path: X-Original-To: patchwork-linux-arm@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 6C39B9F380 for ; Tue, 28 Jul 2015 13:25:56 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8C6A22073E for ; Tue, 28 Jul 2015 13:25:55 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 61E01206D2 for ; Tue, 28 Jul 2015 13:25:54 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZK4qd-0006Rd-JU; Tue, 28 Jul 2015 13:23:11 +0000 Received: from mail-wi0-x235.google.com ([2a00:1450:400c:c05::235]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZK4oj-0004yl-Ad for linux-arm-kernel@lists.infradead.org; Tue, 28 Jul 2015 13:21:14 +0000 Received: by wicgb10 with SMTP id gb10so156503315wic.1 for ; 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 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> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150728_062113_654887_A19D76AE X-CRM114-Status: GOOD ( 11.80 ) X-Spam-Score: -2.4 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, =?UTF-8?q?Terje=20Bergstr=C3=B6m?= , linux-acpi@vger.kernel.org, Arnd Bergmann , Stephen Warren , David Airlie , Linus Walleij , Dmitry Torokhov , "Rafael J. Wysocki" , Tomeu Vizoso , Javier Martinez Canillas , Mark Brown , Thierry Reding , dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, Alexandre Courbot , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham 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 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)