From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomeu Vizoso Subject: [PATCH v7 12/20] backlight: Probe backlight devices on demand Date: Tue, 29 Sep 2015 11:10:50 +0200 Message-ID: <1443517859-30376-13-git-send-email-tomeu.vizoso@collabora.com> References: <1443517859-30376-1-git-send-email-tomeu.vizoso@collabora.com> Return-path: In-Reply-To: <1443517859-30376-1-git-send-email-tomeu.vizoso@collabora.com> Sender: linux-acpi-owner@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: Rob Herring , Stephen Warren , Javier Martinez Canillas , Greg Kroah-Hartman , Mark Brown , Thierry Reding , Alan Stern , "Rafael J. Wysocki" , linux-arm-kernel@lists.infradead.org, Dmitry Torokhov , devicetree@vger.kernel.org, Russell King , Linus Walleij , Ulf Hansson , linux-acpi@vger.kernel.org, Arnd Bergmann , Tomeu Vizoso List-Id: devicetree@vger.kernel.org When looking up a backlight device 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 --- drivers/video/backlight/backlight.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index bddc8b17a4d8..9bcdc16eacdf 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -16,6 +16,7 @@ #include #include #include +#include #ifdef CONFIG_PMAC_BACKLIGHT #include @@ -559,6 +560,8 @@ struct backlight_device *of_find_backlight_by_node(struct device_node *node) { struct device *dev; + of_device_probe(node); + dev = class_find_device(backlight_class, NULL, node, of_parent_match); return dev ? to_backlight_device(dev) : NULL; -- 2.4.3