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Message-Id: <1432565608-26036-16-git-send-email-tomeu.vizoso@collabora.com>
Date: Mon, 25 May 2015 16:53:19 +0200
From: Tomeu Vizoso <tomeu.vizoso@...labora.com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Stéphane Marchesin
<stephane.marchesin@...il.com>,
Thierry Reding <thierry.reding@...il.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Alexander Holler <holler@...oftware.de>,
Grant Likely <grant.likely@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Tomeu Vizoso <tomeu.vizoso@...labora.com>,
Jingoo Han <jingoohan1@...il.com>,
Lee Jones <lee.jones@...aro.org>,
Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
Tomi Valkeinen <tomi.valkeinen@...com>,
linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 15/21] backlight: Probe backlight devices on demand
When looking up a backlight device through its DT node, ensure that the
corresponding device has been registered.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@...labora.com>
---
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 bddc8b1..fe7833b 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -12,6 +12,7 @@
#include <linux/device.h>
#include <linux/backlight.h>
#include <linux/notifier.h>
+#include <linux/of_platform.h>
#include <linux/ctype.h>
#include <linux/err.h>
#include <linux/fb.h>
@@ -559,6 +560,8 @@ struct backlight_device *of_find_backlight_by_node(struct device_node *node)
{
struct device *dev;
+ of_platform_device_ensure(node);
+
dev = class_find_device(backlight_class, NULL, node, of_parent_match);
return dev ? to_backlight_device(dev) : NULL;
--
2.4.1
--
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