[PATCH] backlight: add CONFIG_PM_SLEEP to suspend/resume functions
From: Jingoo Han <hidden>
Date: 2013-06-07 01:39:24
Also in:
lkml
Subsystem:
backlight class/subsystem, framebuffer layer, the rest · Maintainers:
Lee Jones, Daniel Thompson, Jingoo Han, Helge Deller, Linus Torvalds
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 <redacted> --- 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; +#ifdef CONFIG_PM_SLEEP 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; } +#endif static SIMPLE_DEV_PM_OPS(backlight_class_dev_pm_ops, backlight_suspend, backlight_resume);
--
1.7.10.4