From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932252AbbG1NVN (ORCPT ); Tue, 28 Jul 2015 09:21:13 -0400 Received: from mail-wi0-f181.google.com ([209.85.212.181]:33431 "EHLO mail-wi0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932102AbbG1NVI (ORCPT ); Tue, 28 Jul 2015 09:21:08 -0400 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 , linux-fbdev@vger.kernel.org, Tomi Valkeinen , Jingoo Han , Jean-Christophe Plagniol-Villard , Lee Jones Subject: [PATCH v2 15/22] backlight: Probe backlight devices on demand Date: Tue, 28 Jul 2015 15:19:46 +0200 Message-Id: <1438089593-7696-16-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-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When looking up a backlight 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/video/backlight/backlight.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index bddc8b17a4d8..f7151d916435 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -559,6 +559,8 @@ struct backlight_device *of_find_backlight_by_node(struct device_node *node) { struct device *dev; + fwnode_ensure_device(&node->fwnode); + dev = class_find_device(backlight_class, NULL, node, of_parent_match); return dev ? to_backlight_device(dev) : NULL; -- 2.4.3