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authorGrygorii Strashko <Grygorii.Strashko@linaro.org>2015-01-14 16:11:21 +0200
committerGrygorii Strashko <Grygorii.Strashko@linaro.org>2015-02-09 23:28:41 +0800
commit2f29bbc43506e6ba5f5e46f26483f7d22324dd29 (patch)
tree78e1bee25393a86b33d2a71b0eb8e074713b4e3d
parentc5da8f397ba5dbbc776d3808bc50ec667860e080 (diff)
[hib-new-drv] leds: add hibernation callbacks
Setting a dev_pm_ops suspend/resume pair but not a set of hibernation functions means those pm functions will not be called upon hibernation - that leads to system crash during freezing if gpio-led is used in combination with CPU led trigger. Fix this by using SIMPLE_DEV_PM_OPS, which appropriately assigns the suspend and hibernation handlers. Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org>
-rw-r--r--drivers/leds/led-class.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index f37d63cf726..825545cdfb1 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -178,6 +178,7 @@ void led_classdev_resume(struct led_classdev *led_cdev)
}
EXPORT_SYMBOL_GPL(led_classdev_resume);
+#ifdef CONFIG_PM_SLEEP
static int led_suspend(struct device *dev)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
@@ -197,11 +198,9 @@ static int led_resume(struct device *dev)
return 0;
}
+#endif
-static const struct dev_pm_ops leds_class_dev_pm_ops = {
- .suspend = led_suspend,
- .resume = led_resume,
-};
+static SIMPLE_DEV_PM_OPS(leds_class_dev_pm_ops, led_suspend, led_resume);
/**
* led_classdev_register - register a new object of led_classdev class.