[PATCH 15/21] backlight: Probe backlight devices on demand
From: Tomeu Vizoso <hidden>
Date: 2015-05-25 15:01:12
Also in:
linux-arm-kernel, lkml
Subsystem:
backlight class/subsystem, framebuffer layer, the rest · Maintainers:
Lee Jones, Daniel Thompson, Jingoo Han, Helge Deller, Linus Torvalds
When looking up a backlight device through its DT node, ensure that the corresponding device has been registered. Signed-off-by: Tomeu Vizoso <redacted> --- 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