[v2] backlight: Convert from Legacy pm ops to dev_pm_ops
diff mbox series

Message ID 2236505237-3336-1-git-send-email-shuah.kh@samsung.com
State New, archived
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Series
  • [v2] backlight: Convert from Legacy pm ops to dev_pm_ops
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Commit Message

Shuah Khan Nov. 14, 2040, 11:27 a.m. UTC
Convert drivers/video/backlight/class to use dev_pm_ops for power
management and remove Legacy PM ops hooks. With this change, rtc 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.

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Cc: Shuah Khan <shuahkhan@gmail.com>
---

v2: Updated changelog to correct device class.

 drivers/video/backlight/backlight.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

Comments

Jingoo Han June 1, 2013, 4:13 a.m. UTC | #1
On Wednesday, November 14, 2040 8:27 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

There is still the typo.

Please fix it. 
 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 backlight class.
> 
> Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
> Cc: Shuah Khan <shuahkhan@gmail.com>


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David Brown Aug. 9, 2013, 9:28 p.m. UTC | #2
On Wed, Nov 14, 2040 at 04:27:17AM -0700, Shuah Khan wrote:
> ...

The clock on your computer might be running just a wee bit ahead.

Either that, or we're getting patches from the future.

David
Shuah Khan Aug. 9, 2013, 9:33 p.m. UTC | #3
On 08/09/2013 03:28 PM, David Brown wrote:
> On Wed, Nov 14, 2040 at 04:27:17AM -0700, Shuah Khan wrote:
>> ...
>
> The clock on your computer might be running just a wee bit ahead.
>
> Either that, or we're getting patches from the future.
>
> David
>

David,

I know what happened. I was testing suspend to disk with pm_trace 
enabled and forgot to set the correct time after the running the test. 
Generated the patch without realizing the time is incorrect. Would like 
me to re-generate it.

-- Shuah

Shuah Khan, Linux Kernel Developer - Open Source Group Samsung Research 
America (Silicon Valley) shuah.kh@samsung.com | (970) 672-0658
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Rafael J. Wysocki Jan. 19, 2014, 3:37 p.m. UTC | #4
On Wednesday, November 14, 2040 04:27:17 AM 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
> 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.
> 
> Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
> Cc: Shuah Khan <shuahkhan@gmail.com>

Can you please resend the patches that nobody took with CCs to
linux-pm@vger.kernel.org?  If the original maintainers don't care, I'll be
able to pick those patches up then (if they look good).

Thanks!

> ---
> 
> v2: Updated changelog to correct device class.
> 
>  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;
>  }
>  
>
Jingoo Han Jan. 20, 2014, 1:34 a.m. UTC | #5
On Monday, January 20, 2014 12:37 AM, Rafael J. Wysocki wrote:
> On Wednesday, November 14, 2040 04:27:17 AM 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
> > 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.
> >
> > Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
> > Cc: Shuah Khan <shuahkhan@gmail.com>
> 
> Can you please resend the patches that nobody took with CCs to
> linux-pm@vger.kernel.org?  If the original maintainers don't care, I'll be
> able to pick those patches up then (if they look good).

I already gave the comment, and am waiting v3 patch.
However, Shuah Khan did not send the v3 patch yet.

Currently, backlight subsystem patches go through mm-tree
With my acked-by.

Shuah Khan,
Will you send the v3 patch? As I said, there is the typo in
commit message. Please fix it. 
   s/rtc class/backlight class

Best regards,
Jingoo Han

> > ---
> >
> > v2: Updated changelog to correct device class.
> >
> >  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;
> >  }
> >
> >

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Shuah Khan Jan. 20, 2014, 3:27 p.m. UTC | #6
On 01/19/2014 06:34 PM, Jingoo Han wrote:
> On Monday, January 20, 2014 12:37 AM, Rafael J. Wysocki wrote:
>> On Wednesday, November 14, 2040 04:27:17 AM 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
>>> 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.
>>>
>>> Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
>>> Cc: Shuah Khan <shuahkhan@gmail.com>
>>
>> Can you please resend the patches that nobody took with CCs to
>> linux-pm@vger.kernel.org?  If the original maintainers don't care, I'll be
>> able to pick those patches up then (if they look good).
>
> I already gave the comment, and am waiting v3 patch.
> However, Shuah Khan did not send the v3 patch yet.
>
> Currently, backlight subsystem patches go through mm-tree
> With my acked-by.
>
> Shuah Khan,
> Will you send the v3 patch? As I said, there is the typo in
> commit message. Please fix it.
>     s/rtc class/backlight class
>

Rafael/Jingoo Han,

I did send the v3 patch with the typo fixed. Here is the link:

http://lkml.indiana.edu/hypermail/linux/kernel/1306.0/00219.html

This is a while back. I will rebase and res-test and send it.

thanks,
-- Shuah
Shuah Khan Jan. 21, 2014, 3:29 p.m. UTC | #7
On 01/19/2014 08:37 AM, Rafael J. Wysocki wrote:
> On Wednesday, November 14, 2040 04:27:17 AM 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
>> 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.
>>
>> Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
>> Cc: Shuah Khan <shuahkhan@gmail.com>
>
> Can you please resend the patches that nobody took with CCs to
> linux-pm@vger.kernel.org?  If the original maintainers don't care, I'll be
> able to pick those patches up then (if they look good).
>

Rafael,

Thanks. I have a few legacy pm patches that didn't get pulled into 
trees. I will rebase to the latest and resend.

-- Shuah
Shuah Khan Feb. 4, 2014, 5:55 p.m. UTC | #8
On 01/20/2014 08:27 AM, Shuah Khan wrote:
> On 01/19/2014 06:34 PM, Jingoo Han wrote:
>> On Monday, January 20, 2014 12:37 AM, Rafael J. Wysocki wrote:

> Rafael/Jingoo Han,
>
> I did send the v3 patch with the typo fixed. Here is the link:
>
> http://lkml.indiana.edu/hypermail/linux/kernel/1306.0/00219.html
>
> This is a while back. I will rebase and res-test and send it.
>

Checked 3.14-rc1 and patch v3 is in there.

commit 3601792e7b68150420ea8dc129e26e167c0484d8

-- Shuah
Jingoo Han Feb. 5, 2014, 12:17 a.m. UTC | #9
On Wednesday, February 05, 2014 2:55 AM, Shuah Khan wrote:
> On 01/20/2014 08:27 AM, Shuah Khan wrote:
> > On 01/19/2014 06:34 PM, Jingoo Han wrote:
> >> On Monday, January 20, 2014 12:37 AM, Rafael J. Wysocki wrote:
> 
> > Rafael/Jingoo Han,
> >
> > I did send the v3 patch with the typo fixed. Here is the link:
> >
> > http://lkml.indiana.edu/hypermail/linux/kernel/1306.0/00219.html
> >
> > This is a while back. I will rebase and res-test and send it.
> >
> 
> Checked 3.14-rc1 and patch v3 is in there.
> 
> commit 3601792e7b68150420ea8dc129e26e167c0484d8

OK, I see. I checked that it was already merged to
mainline kernel. Thank you.

Best regards,
Jingoo Han

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Sebastian Capella Feb. 18, 2014, 10:20 p.m. UTC | #10
Shuah Khan <shuah.kh@samsung.com> 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
> 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.
>
> Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
> Cc: Shuah Khan <shuahkhan@gmail.com>
>
> ---
> v2: Updated changelog to correct device class.
>
>  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;
>  }
>  --
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Patch
diff mbox series

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;
 }