From 3601792e7b68150420ea8dc129e26e167c0484d8 Mon Sep 17 00:00:00 2001 From: Shuah Khan Date: Wed, 3 Jul 2013 15:05:16 -0700 Subject: [PATCH] backlight: convert from legacy pm ops to dev_pm_ops Convert drivers/video/backlight/class to use dev_pm_ops for power management and remove Legacy PM ops hooks. With this change, backlight class registers suspend/resume callbacks via class->pm (dev_pm_ops) instead of Legacy class->suspend/resume. When __device_suspend() runs call-backs, it will find class->pm ops for the backlight class. [jg1.han@samsung.com: add CONFIG_PM_SLEEP to suspend/resume functions] Signed-off-by: Shuah Khan Signed-off-by: Jingoo Han Cc: Shuah Khan Cc: Jingoo Han Cc: Shuah Khan Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/backlight/backlight.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index 53c52fbc9395..3fccb6d3c8c3 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -208,7 +208,8 @@ static ssize_t backlight_show_actual_brightness(struct device *dev, static struct class *backlight_class; -static int backlight_suspend(struct device *dev, pm_message_t state) +#ifdef CONFIG_PM_SLEEP +static int backlight_suspend(struct device *dev) { struct backlight_device *bd = to_backlight_device(dev); @@ -235,6 +236,10 @@ static int backlight_resume(struct device *dev) return 0; } +#endif + +static SIMPLE_DEV_PM_OPS(backlight_class_dev_pm_ops, backlight_suspend, + backlight_resume); static void bl_device_release(struct device *dev) { @@ -489,8 +494,7 @@ static int __init backlight_class_init(void) } backlight_class->dev_attrs = bl_device_attributes; - backlight_class->suspend = backlight_suspend; - backlight_class->resume = backlight_resume; + backlight_class->pm = &backlight_class_dev_pm_ops; return 0; } -- GitLab