[PATCH v2] gpu/drm/exynos: Convert drm_atomic_helper_suspend/resume()

[PATCH v2] gpu/drm/exynos: Convert drm_atomic_helper_suspend/resume()

[Souptick Joarder]

convert drm_atomic_helper_suspend/resume() to use
drm_mode_config_helper_suspend/resume().

exynos_drm_fbdev_suspend/resume can be removed
as drm_mode_config_helper_suspend/resume has
implement the same in generic way.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Ajit Negi <ajitn.linux@gmail.com>
---
v2: Address Inki Dae's comment. Remove
    ret variable from both suspend/resume
    function.

 drivers/gpu/drm/exynos/exynos_drm_drv.c   | 26 ++++----------------------
 drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 17 -----------------
 drivers/gpu/drm/exynos/exynos_drm_fbdev.h | 10 ----------
 3 files changed, 4 insertions(+), 49 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index a81b4a5..46d28cd 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -151,39 +151,21 @@ static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
 static int exynos_drm_suspend(struct device *dev)
 {
 	struct drm_device *drm_dev = dev_get_drvdata(dev);
-	struct exynos_drm_private *private;
 
-	if (pm_runtime_suspended(dev) || !drm_dev)
+	if (pm_runtime_suspended(dev))
 		return 0;
 
-	private = drm_dev->dev_private;
-
-	drm_kms_helper_poll_disable(drm_dev);
-	exynos_drm_fbdev_suspend(drm_dev);
-	private->suspend_state = drm_atomic_helper_suspend(drm_dev);
-	if (IS_ERR(private->suspend_state)) {
-		exynos_drm_fbdev_resume(drm_dev);
-		drm_kms_helper_poll_enable(drm_dev);
-		return PTR_ERR(private->suspend_state);
-	}
-
-	return 0;
+	return drm_mode_config_helper_suspend(drm_dev);
 }
 
 static int exynos_drm_resume(struct device *dev)
 {
 	struct drm_device *drm_dev = dev_get_drvdata(dev);
-	struct exynos_drm_private *private;
 
-	if (pm_runtime_suspended(dev) || !drm_dev)
+	if (pm_runtime_suspended(dev))
 		return 0;
 
-	private = drm_dev->dev_private;
-	drm_atomic_helper_resume(drm_dev, private->suspend_state);
-	exynos_drm_fbdev_resume(drm_dev);
-	drm_kms_helper_poll_enable(drm_dev);
-
-	return 0;
+	return drm_mode_config_helper_resume(drm_dev);
 }
 #endif
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index 132dd52..918dd2c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -270,20 +270,3 @@ void exynos_drm_fbdev_fini(struct drm_device *dev)
 	private->fb_helper = NULL;
 }
 
-void exynos_drm_fbdev_suspend(struct drm_device *dev)
-{
-	struct exynos_drm_private *private = dev->dev_private;
-
-	console_lock();
-	drm_fb_helper_set_suspend(private->fb_helper, 1);
-	console_unlock();
-}
-
-void exynos_drm_fbdev_resume(struct drm_device *dev)
-{
-	struct exynos_drm_private *private = dev->dev_private;
-
-	console_lock();
-	drm_fb_helper_set_suspend(private->fb_helper, 0);
-	console_unlock();
-}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
index b338472..6840b6a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
@@ -19,8 +19,6 @@
 
 int exynos_drm_fbdev_init(struct drm_device *dev);
 void exynos_drm_fbdev_fini(struct drm_device *dev);
-void exynos_drm_fbdev_suspend(struct drm_device *drm);
-void exynos_drm_fbdev_resume(struct drm_device *drm);
 
 #else
 
@@ -39,14 +37,6 @@ static inline void exynos_drm_fbdev_restore_mode(struct drm_device *dev)
 
 #define exynos_drm_output_poll_changed (NULL)
 
-static inline void exynos_drm_fbdev_suspend(struct drm_device *drm)
-{
-}
-
-static inline void exynos_drm_fbdev_resume(struct drm_device *drm)
-{
-}
-
 #endif
 
 #endif
-- 
1.9.1

Re: [PATCH v2] gpu/drm/exynos: Convert drm_atomic_helper_suspend/resume()

[Souptick Joarder]

On Thu, Jul 26, 2018 at 9:24 PM, Souptick Joarder <jrdr.linux@gmail.com> wrote:
> convert drm_atomic_helper_suspend/resume() to use
> drm_mode_config_helper_suspend/resume().
>
> exynos_drm_fbdev_suspend/resume can be removed
> as drm_mode_config_helper_suspend/resume has
> implement the same in generic way.
>
> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
> Signed-off-by: Ajit Negi <ajitn.linux@gmail.com>
> ---
> v2: Address Inki Dae's comment. Remove
>     ret variable from both suspend/resume
>     function.
>

Any further comment on this patch ?

>  drivers/gpu/drm/exynos/exynos_drm_drv.c   | 26 ++++----------------------
>  drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 17 -----------------
>  drivers/gpu/drm/exynos/exynos_drm_fbdev.h | 10 ----------
>  3 files changed, 4 insertions(+), 49 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> index a81b4a5..46d28cd 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> @@ -151,39 +151,21 @@ static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
>  static int exynos_drm_suspend(struct device *dev)
>  {
>         struct drm_device *drm_dev = dev_get_drvdata(dev);
> -       struct exynos_drm_private *private;
>
> -       if (pm_runtime_suspended(dev) || !drm_dev)
> +       if (pm_runtime_suspended(dev))
>                 return 0;
>
> -       private = drm_dev->dev_private;
> -
> -       drm_kms_helper_poll_disable(drm_dev);
> -       exynos_drm_fbdev_suspend(drm_dev);
> -       private->suspend_state = drm_atomic_helper_suspend(drm_dev);
> -       if (IS_ERR(private->suspend_state)) {
> -               exynos_drm_fbdev_resume(drm_dev);
> -               drm_kms_helper_poll_enable(drm_dev);
> -               return PTR_ERR(private->suspend_state);
> -       }
> -
> -       return 0;
> +       return drm_mode_config_helper_suspend(drm_dev);
>  }
>
>  static int exynos_drm_resume(struct device *dev)
>  {
>         struct drm_device *drm_dev = dev_get_drvdata(dev);
> -       struct exynos_drm_private *private;
>
> -       if (pm_runtime_suspended(dev) || !drm_dev)
> +       if (pm_runtime_suspended(dev))
>                 return 0;
>
> -       private = drm_dev->dev_private;
> -       drm_atomic_helper_resume(drm_dev, private->suspend_state);
> -       exynos_drm_fbdev_resume(drm_dev);
> -       drm_kms_helper_poll_enable(drm_dev);
> -
> -       return 0;
> +       return drm_mode_config_helper_resume(drm_dev);
>  }
>  #endif
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> index 132dd52..918dd2c 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> @@ -270,20 +270,3 @@ void exynos_drm_fbdev_fini(struct drm_device *dev)
>         private->fb_helper = NULL;
>  }
>
> -void exynos_drm_fbdev_suspend(struct drm_device *dev)
> -{
> -       struct exynos_drm_private *private = dev->dev_private;
> -
> -       console_lock();
> -       drm_fb_helper_set_suspend(private->fb_helper, 1);
> -       console_unlock();
> -}
> -
> -void exynos_drm_fbdev_resume(struct drm_device *dev)
> -{
> -       struct exynos_drm_private *private = dev->dev_private;
> -
> -       console_lock();
> -       drm_fb_helper_set_suspend(private->fb_helper, 0);
> -       console_unlock();
> -}
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
> index b338472..6840b6a 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
> @@ -19,8 +19,6 @@
>
>  int exynos_drm_fbdev_init(struct drm_device *dev);
>  void exynos_drm_fbdev_fini(struct drm_device *dev);
> -void exynos_drm_fbdev_suspend(struct drm_device *drm);
> -void exynos_drm_fbdev_resume(struct drm_device *drm);
>
>  #else
>
> @@ -39,14 +37,6 @@ static inline void exynos_drm_fbdev_restore_mode(struct drm_device *dev)
>
>  #define exynos_drm_output_poll_changed (NULL)
>
> -static inline void exynos_drm_fbdev_suspend(struct drm_device *drm)
> -{
> -}
> -
> -static inline void exynos_drm_fbdev_resume(struct drm_device *drm)
> -{
> -}
> -
>  #endif
>
>  #endif
> --
> 1.9.1
>

Re: [PATCH v2] gpu/drm/exynos: Convert drm_atomic_helper_suspend/resume()

[Marek Szyprowski]

Hi Souptick,

On 2018-08-02 08:25, Souptick Joarder wrote:
> On Thu, Jul 26, 2018 at 9:24 PM, Souptick Joarder <jrdr.linux@gmail.com> wrote:
>> convert drm_atomic_helper_suspend/resume() to use
>> drm_mode_config_helper_suspend/resume().
>>
>> exynos_drm_fbdev_suspend/resume can be removed
>> as drm_mode_config_helper_suspend/resume has
>> implement the same in generic way.
>>
>> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
>> Signed-off-by: Ajit Negi <ajitn.linux@gmail.com>
>> ---
>> v2: Address Inki Dae's comment. Remove
>>      ret variable from both suspend/resume
>>      function.
>>
> Any further comment on this patch ?

Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>

However you need to rebase onto current drm-next, because there have
been some changes, which prevent this patch from applying.

pm_runtime_suspended(dev) checks were useless and have been removed,
what simplifies suspend/resume functions even more. Now it is too
late for v4.19 merge window, so this patch will have to wait for
v4.20.

>>   drivers/gpu/drm/exynos/exynos_drm_drv.c   | 26 ++++----------------------
>>   drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 17 -----------------
>>   drivers/gpu/drm/exynos/exynos_drm_fbdev.h | 10 ----------
>>   3 files changed, 4 insertions(+), 49 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
>> index a81b4a5..46d28cd 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
>> @@ -151,39 +151,21 @@ static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
>>   static int exynos_drm_suspend(struct device *dev)
>>   {
>>          struct drm_device *drm_dev = dev_get_drvdata(dev);
>> -       struct exynos_drm_private *private;
>>
>> -       if (pm_runtime_suspended(dev) || !drm_dev)
>> +       if (pm_runtime_suspended(dev))
>>                  return 0;
>>
>> -       private = drm_dev->dev_private;
>> -
>> -       drm_kms_helper_poll_disable(drm_dev);
>> -       exynos_drm_fbdev_suspend(drm_dev);
>> -       private->suspend_state = drm_atomic_helper_suspend(drm_dev);
>> -       if (IS_ERR(private->suspend_state)) {
>> -               exynos_drm_fbdev_resume(drm_dev);
>> -               drm_kms_helper_poll_enable(drm_dev);
>> -               return PTR_ERR(private->suspend_state);
>> -       }
>> -
>> -       return 0;
>> +       return drm_mode_config_helper_suspend(drm_dev);
>>   }
>>
>>   static int exynos_drm_resume(struct device *dev)
>>   {
>>          struct drm_device *drm_dev = dev_get_drvdata(dev);
>> -       struct exynos_drm_private *private;
>>
>> -       if (pm_runtime_suspended(dev) || !drm_dev)
>> +       if (pm_runtime_suspended(dev))
>>                  return 0;
>>
>> -       private = drm_dev->dev_private;
>> -       drm_atomic_helper_resume(drm_dev, private->suspend_state);
>> -       exynos_drm_fbdev_resume(drm_dev);
>> -       drm_kms_helper_poll_enable(drm_dev);
>> -
>> -       return 0;
>> +       return drm_mode_config_helper_resume(drm_dev);
>>   }
>>   #endif
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> index 132dd52..918dd2c 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> @@ -270,20 +270,3 @@ void exynos_drm_fbdev_fini(struct drm_device *dev)
>>          private->fb_helper = NULL;
>>   }
>>
>> -void exynos_drm_fbdev_suspend(struct drm_device *dev)
>> -{
>> -       struct exynos_drm_private *private = dev->dev_private;
>> -
>> -       console_lock();
>> -       drm_fb_helper_set_suspend(private->fb_helper, 1);
>> -       console_unlock();
>> -}
>> -
>> -void exynos_drm_fbdev_resume(struct drm_device *dev)
>> -{
>> -       struct exynos_drm_private *private = dev->dev_private;
>> -
>> -       console_lock();
>> -       drm_fb_helper_set_suspend(private->fb_helper, 0);
>> -       console_unlock();
>> -}
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
>> index b338472..6840b6a 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
>> @@ -19,8 +19,6 @@
>>
>>   int exynos_drm_fbdev_init(struct drm_device *dev);
>>   void exynos_drm_fbdev_fini(struct drm_device *dev);
>> -void exynos_drm_fbdev_suspend(struct drm_device *drm);
>> -void exynos_drm_fbdev_resume(struct drm_device *drm);
>>
>>   #else
>>
>> @@ -39,14 +37,6 @@ static inline void exynos_drm_fbdev_restore_mode(struct drm_device *dev)
>>
>>   #define exynos_drm_output_poll_changed (NULL)
>>
>> -static inline void exynos_drm_fbdev_suspend(struct drm_device *drm)
>> -{
>> -}
>> -
>> -static inline void exynos_drm_fbdev_resume(struct drm_device *drm)
>> -{
>> -}
>> -
>>   #endif
>>
>>   #endif
>> --
>> 1.9.1
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland

Re: [PATCH v2] gpu/drm/exynos: Convert drm_atomic_helper_suspend/resume()

[Souptick Joarder]

On Thu, Aug 2, 2018 at 12:17 PM, Marek Szyprowski
<m.szyprowski@samsung.com> wrote:
> Hi Souptick,
>
> On 2018-08-02 08:25, Souptick Joarder wrote:
>> On Thu, Jul 26, 2018 at 9:24 PM, Souptick Joarder <jrdr.linux@gmail.com> wrote:
>>> convert drm_atomic_helper_suspend/resume() to use
>>> drm_mode_config_helper_suspend/resume().
>>>
>>> exynos_drm_fbdev_suspend/resume can be removed
>>> as drm_mode_config_helper_suspend/resume has
>>> implement the same in generic way.
>>>
>>> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
>>> Signed-off-by: Ajit Negi <ajitn.linux@gmail.com>
>>> ---
>>> v2: Address Inki Dae's comment. Remove
>>>      ret variable from both suspend/resume
>>>      function.
>>>
>> Any further comment on this patch ?
>
> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
>
> However you need to rebase onto current drm-next, because there have
> been some changes, which prevent this patch from applying.
>
> pm_runtime_suspended(dev) checks were useless and have been removed,
> what simplifies suspend/resume functions even more. Now it is too
> late for v4.19 merge window, so this patch will have to wait for
> v4.20.

Thanks, I will remove in v3 after rebase to drm-next.

>>>   drivers/gpu/drm/exynos/exynos_drm_drv.c   | 26 ++++----------------------
>>>   drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 17 -----------------
>>>   drivers/gpu/drm/exynos/exynos_drm_fbdev.h | 10 ----------
>>>   3 files changed, 4 insertions(+), 49 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
>>> index a81b4a5..46d28cd 100644
>>> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
>>> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
>>> @@ -151,39 +151,21 @@ static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
>>>   static int exynos_drm_suspend(struct device *dev)
>>>   {
>>>          struct drm_device *drm_dev = dev_get_drvdata(dev);
>>> -       struct exynos_drm_private *private;
>>>
>>> -       if (pm_runtime_suspended(dev) || !drm_dev)
>>> +       if (pm_runtime_suspended(dev))
>>>                  return 0;
>>>
>>> -       private = drm_dev->dev_private;
>>> -
>>> -       drm_kms_helper_poll_disable(drm_dev);
>>> -       exynos_drm_fbdev_suspend(drm_dev);
>>> -       private->suspend_state = drm_atomic_helper_suspend(drm_dev);
>>> -       if (IS_ERR(private->suspend_state)) {
>>> -               exynos_drm_fbdev_resume(drm_dev);
>>> -               drm_kms_helper_poll_enable(drm_dev);
>>> -               return PTR_ERR(private->suspend_state);
>>> -       }
>>> -
>>> -       return 0;
>>> +       return drm_mode_config_helper_suspend(drm_dev);
>>>   }
>>>
>>>   static int exynos_drm_resume(struct device *dev)
>>>   {
>>>          struct drm_device *drm_dev = dev_get_drvdata(dev);
>>> -       struct exynos_drm_private *private;
>>>
>>> -       if (pm_runtime_suspended(dev) || !drm_dev)
>>> +       if (pm_runtime_suspended(dev))
>>>                  return 0;
>>>
>>> -       private = drm_dev->dev_private;
>>> -       drm_atomic_helper_resume(drm_dev, private->suspend_state);
>>> -       exynos_drm_fbdev_resume(drm_dev);
>>> -       drm_kms_helper_poll_enable(drm_dev);
>>> -
>>> -       return 0;
>>> +       return drm_mode_config_helper_resume(drm_dev);
>>>   }
>>>   #endif
>>>
>>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>>> index 132dd52..918dd2c 100644
>>> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>>> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>>> @@ -270,20 +270,3 @@ void exynos_drm_fbdev_fini(struct drm_device *dev)
>>>          private->fb_helper = NULL;
>>>   }
>>>
>>> -void exynos_drm_fbdev_suspend(struct drm_device *dev)
>>> -{
>>> -       struct exynos_drm_private *private = dev->dev_private;
>>> -
>>> -       console_lock();
>>> -       drm_fb_helper_set_suspend(private->fb_helper, 1);
>>> -       console_unlock();
>>> -}
>>> -
>>> -void exynos_drm_fbdev_resume(struct drm_device *dev)
>>> -{
>>> -       struct exynos_drm_private *private = dev->dev_private;
>>> -
>>> -       console_lock();
>>> -       drm_fb_helper_set_suspend(private->fb_helper, 0);
>>> -       console_unlock();
>>> -}
>>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
>>> index b338472..6840b6a 100644
>>> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
>>> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
>>> @@ -19,8 +19,6 @@
>>>
>>>   int exynos_drm_fbdev_init(struct drm_device *dev);
>>>   void exynos_drm_fbdev_fini(struct drm_device *dev);
>>> -void exynos_drm_fbdev_suspend(struct drm_device *drm);
>>> -void exynos_drm_fbdev_resume(struct drm_device *drm);
>>>
>>>   #else
>>>
>>> @@ -39,14 +37,6 @@ static inline void exynos_drm_fbdev_restore_mode(struct drm_device *dev)
>>>
>>>   #define exynos_drm_output_poll_changed (NULL)
>>>
>>> -static inline void exynos_drm_fbdev_suspend(struct drm_device *drm)
>>> -{
>>> -}
>>> -
>>> -static inline void exynos_drm_fbdev_resume(struct drm_device *drm)
>>> -{
>>> -}
>>> -
>>>   #endif
>>>
>>>   #endif
>>> --
>>> 1.9.1
>>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>>
>
> Best regards
> --
> Marek Szyprowski, PhD
> Samsung R&D Institute Poland
>