Re: [PATCH] backlight: Convert from Legacy pm ops to dev_pm_ops
From: Jingoo Han <hidden>
Date: 2013-06-01 04:09:00
Also in:
lkml
On Wednesday, November 14, 2040 8:02 PM, Shuah Khan wrote:
Convert drivers/video/backlight/class to use dev_pm_ops for power management and remove Legacy PM ops hooks. With this change, rtc class
No, this is a backlight class, not rtc class. Please fix the typo as below: rtc class -> 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 rtc class.
Same here. Best regards, Jingoo Han
quoted hunk ↗ jump to hunk
Signed-off-by: Shuah Khan <redacted> Cc: Shuah Khan <redacted> --- drivers/video/backlight/backlight.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index c74e7aa..0ffb251 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c@@ -208,7 +208,7 @@ 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) +static int backlight_suspend(struct device *dev) { struct backlight_device *bd = to_backlight_device(dev);@@ -236,6 +236,9 @@ static int backlight_resume(struct device *dev) return 0; } +static SIMPLE_DEV_PM_OPS(backlight_class_dev_pm_ops, backlight_suspend, + backlight_resume); + static void bl_device_release(struct device *dev) { struct backlight_device *bd = to_backlight_device(dev);@@ -414,8 +417,7 @@ 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; } --1.7.10.4 --