[lkml]   [2013]   [Jun]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH] backlight: add CONFIG_PM_SLEEP to suspend/resume functions
Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following
build warning when CONFIG_PM_SLEEP is not selected. This is because
sleep PM callbacks defined by SIMPLE_DEV_PM_OPS are only used when
the CONFIG_PM_SLEEP is enabled.

drivers/video/backlight/backlight.c:211:12: warning: 'backlight_suspend' defined but not used [-Wunused-function]
drivers/video/backlight/backlight.c:225:12: warning: 'backlight_resume' defined but not used [-Wunused-function]

Signed-off-by: Jingoo Han <>
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 cedbcbe..750807c 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -208,6 +208,7 @@ static ssize_t backlight_show_actual_brightness(struct device *dev,

static struct class *backlight_class;

static int backlight_suspend(struct device *dev)
struct backlight_device *bd = to_backlight_device(dev);
@@ -235,6 +236,7 @@ static int backlight_resume(struct device *dev)

return 0;

static SIMPLE_DEV_PM_OPS(backlight_class_dev_pm_ops, backlight_suspend,

 \ /
  Last update: 2013-06-07 04:21    [W:0.071 / U:3.044 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site