diff mbox

fbdev: bfin-lq035q1-fb: Use dev_pm_ops

Message ID 000a01ce5daf$8b228b80$a167a280$@samsung.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Jingoo Han May 31, 2013, 3:32 a.m. UTC
On Thursday, May 30, 2013 7:46 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 09:52 Thu 30 May     , Lars-Peter Clausen wrote:
> > On 05/30/2013 09:14 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > On 09:32 Thu 30 May     , Jingoo Han wrote:
> > >> On Thursday, May 30, 2013 4:20 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > >>> On 16:24 Wed 29 May     , Michael Hennerich wrote:
> > >>>> On 05/29/2013 02:17 PM, Lars-Peter Clausen wrote:
> > >>>>> Use dev_pm_ops instead of the legacy suspend/resume callbacks.
> > >>>>>
> > >>>>> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
> > >>>> Acked-by: Michael Hennerich <michael.hennerich@analog.com>
> > >>>>> ---
> > >>>>>  drivers/video/bfin-lq035q1-fb.c | 22 ++++++++++++++--------
> > >>>>>  1 file changed, 14 insertions(+), 8 deletions(-)
> > >>>>>
> > >>>>> diff --git a/drivers/video/bfin-lq035q1-fb.c b/drivers/video/bfin-lq035q1-fb.c
> > >>>>> index 29d8c04..6084c17 100644
> > >>>>> --- a/drivers/video/bfin-lq035q1-fb.c
> > >>>>> +++ b/drivers/video/bfin-lq035q1-fb.c
> > >>>>> @@ -170,16 +170,19 @@ static int lq035q1_spidev_remove(struct spi_device *spi)
> > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
> > >>>>>  }
> > >>>>> -#ifdef CONFIG_PM
> > >>>>> -static int lq035q1_spidev_suspend(struct spi_device *spi, pm_message_t state)
> > >>>>> +#ifdef CONFIG_PM_SLEEP
> > >>>>> +static int lq035q1_spidev_suspend(struct device *dev)
> > >>>>>  {
> > >>>>> +	struct spi_device *spi = to_spi_device(dev);
> > >>>>> +
> > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
> > >>>>>  }
> > >>>>> -static int lq035q1_spidev_resume(struct spi_device *spi)
> > >>>>> +static int lq035q1_spidev_resume(struct device *dev)
> > >>>>>  {
> > >>>>> -	int ret;
> > >>>>> +	struct spi_device *spi = to_spi_device(dev);
> > >>>>>  	struct spi_control *ctl = spi_get_drvdata(spi);
> > >>>>> +	int ret;
> > >>>>>  	ret = lq035q1_control(spi, LQ035_DRIVER_OUTPUT_CTL, ctl->mode);
> > >>>>>  	if (ret)
> > >>>>> @@ -187,9 +190,13 @@ static int lq035q1_spidev_resume(struct spi_device *spi)
> > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_ON);
> > >>>>>  }
> > >>>>> +
> > >>>>> +static SIMPLE_DEV_PM_OPS(lq035q1_spidev_pm_ops, lq035q1_spidev_suspend,
> > >>>>> +	lq035q1_spidev_resume);
> > >>>>> +#define LQ035Q1_SPIDEV_PM_OPS (&lq035q1_spidev_pm_ops)
> > >>>>> +
> > >>>>>  #else
> > >>>>> -# define lq035q1_spidev_suspend NULL
> > >>>>> -# define lq035q1_spidev_resume  NULL
> > >>>>> +#define LQ035Q1_SPIDEV_PM_OPS NULL
> > >>>>>  #endif
> > >>> we really need to ahve a macro like for DT of_match_ptr to drop the #else
> > >>
> > >> Hi Jean-Christophe PLAGNIOL-VILLARD,
> > >>
> > >> I submitted the following patch. :)
> > >> (https://patchwork.kernel.org/patch/2502971/)
> > >>
> > >> --- a/include/linux/pm.h
> > >> +++ b/include/linux/pm.h
> > >> @@ -55,8 +55,10 @@  struct device;
> > >>
> > >>  #ifdef CONFIG_PM
> > >>  extern const char power_group_name[];		/* = "power" */
> > >> +#define pm_ops_ptr(_ptr)	(_ptr)
> > >>  #else
> > >>  #define power_group_name	NULL
> > >> +#define pm_ops_ptr(_ptr)	NULL
> > >>  #endif
> > >>
> > >>
> > >> This patch was accepted by Rafael Wysocki, and will be merged to v3.11-rc1.
> > >>
> > > Lars-Peter please update with and
> >
> > Since the code depends on CONFIG_PM_SLEEP and not CONFIG_PM I don't think
> > the macro will work.
> 
> se please ad a similar macros too

Hi Jean-Christophe,

I added pm_sleep_ops_ptr() as below.
Maybe you want it.
There is no build warnings below 4 config situations.
   a) CONFIG_PM is enabled.
   b) only CONFIG_PM_SLEEP is enabled
   c) only CONFIG_PM_RUNTIME is enabled
   d) CONFIG_PM is NOT enabled.

How about adding this pm_sleep_ops_ptr() macro?

My draft idea is below:
However, I want other's better ideas. :)

1. The case that only CONFIG_PM_SLEEP is necessary.
#ifdef CONFIG_PM_SLEEP
static int *_suspend(struct device *dev)
	[....]
static int *_resume(struct device *dev)
	[....]
#endif

static SIMPLE_DEV_PM_OPS(*_pm_ops, *_suspend, *_resume);

static struct {platform/spi/i2c/etc}_driver *_driver = {
	.driver = {
		.pm     = pm_sleep_ops_ptr(&*_pm_ops),


2. The case that both CONFIG_PM_SLEEP & CONFIG_PM_RUNTIME
    are necessary.

#ifdef CONFIG_PM_SLEEP
static int *_suspend(struct device *dev)
	[....]
static int *_resume(struct device *dev)
	[....]
#endif

#ifdef CONFIG_PM_RUNTIME
static int *_runtime_suspend(struct device *dev)
	[....]
static int *_runtime_resume(struct device *dev)
	[....]
#endif

static const struct dev_pm_ops *_pm_ops = {
	SET_SYSTEM_SLEEP_PM_OPS(*_suspend, *_resume)
	SET_RUNTIME_PM_OPS(*_runtime_suspend, *_runtime_resume, NULL)
};

static struct {platform/spi/i2c/etc}_driver *_driver = {
	.driver = {
		.pm     = pm_ops_ptr(&*_pm_ops),



Best regards,
Jingoo Han


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Comments

Jean-Christophe PLAGNIOL-VILLARD May 31, 2013, 5:01 a.m. UTC | #1
On 12:32 Fri 31 May     , Jingoo Han wrote:
> On Thursday, May 30, 2013 7:46 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > On 09:52 Thu 30 May     , Lars-Peter Clausen wrote:
> > > On 05/30/2013 09:14 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > > On 09:32 Thu 30 May     , Jingoo Han wrote:
> > > >> On Thursday, May 30, 2013 4:20 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > >>> On 16:24 Wed 29 May     , Michael Hennerich wrote:
> > > >>>> On 05/29/2013 02:17 PM, Lars-Peter Clausen wrote:
> > > >>>>> Use dev_pm_ops instead of the legacy suspend/resume callbacks.
> > > >>>>>
> > > >>>>> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
> > > >>>> Acked-by: Michael Hennerich <michael.hennerich@analog.com>
> > > >>>>> ---
> > > >>>>>  drivers/video/bfin-lq035q1-fb.c | 22 ++++++++++++++--------
> > > >>>>>  1 file changed, 14 insertions(+), 8 deletions(-)
> > > >>>>>
> > > >>>>> diff --git a/drivers/video/bfin-lq035q1-fb.c b/drivers/video/bfin-lq035q1-fb.c
> > > >>>>> index 29d8c04..6084c17 100644
> > > >>>>> --- a/drivers/video/bfin-lq035q1-fb.c
> > > >>>>> +++ b/drivers/video/bfin-lq035q1-fb.c
> > > >>>>> @@ -170,16 +170,19 @@ static int lq035q1_spidev_remove(struct spi_device *spi)
> > > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
> > > >>>>>  }
> > > >>>>> -#ifdef CONFIG_PM
> > > >>>>> -static int lq035q1_spidev_suspend(struct spi_device *spi, pm_message_t state)
> > > >>>>> +#ifdef CONFIG_PM_SLEEP
> > > >>>>> +static int lq035q1_spidev_suspend(struct device *dev)
> > > >>>>>  {
> > > >>>>> +	struct spi_device *spi = to_spi_device(dev);
> > > >>>>> +
> > > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
> > > >>>>>  }
> > > >>>>> -static int lq035q1_spidev_resume(struct spi_device *spi)
> > > >>>>> +static int lq035q1_spidev_resume(struct device *dev)
> > > >>>>>  {
> > > >>>>> -	int ret;
> > > >>>>> +	struct spi_device *spi = to_spi_device(dev);
> > > >>>>>  	struct spi_control *ctl = spi_get_drvdata(spi);
> > > >>>>> +	int ret;
> > > >>>>>  	ret = lq035q1_control(spi, LQ035_DRIVER_OUTPUT_CTL, ctl->mode);
> > > >>>>>  	if (ret)
> > > >>>>> @@ -187,9 +190,13 @@ static int lq035q1_spidev_resume(struct spi_device *spi)
> > > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_ON);
> > > >>>>>  }
> > > >>>>> +
> > > >>>>> +static SIMPLE_DEV_PM_OPS(lq035q1_spidev_pm_ops, lq035q1_spidev_suspend,
> > > >>>>> +	lq035q1_spidev_resume);
> > > >>>>> +#define LQ035Q1_SPIDEV_PM_OPS (&lq035q1_spidev_pm_ops)
> > > >>>>> +
> > > >>>>>  #else
> > > >>>>> -# define lq035q1_spidev_suspend NULL
> > > >>>>> -# define lq035q1_spidev_resume  NULL
> > > >>>>> +#define LQ035Q1_SPIDEV_PM_OPS NULL
> > > >>>>>  #endif
> > > >>> we really need to ahve a macro like for DT of_match_ptr to drop the #else
> > > >>
> > > >> Hi Jean-Christophe PLAGNIOL-VILLARD,
> > > >>
> > > >> I submitted the following patch. :)
> > > >> (https://patchwork.kernel.org/patch/2502971/)
> > > >>
> > > >> --- a/include/linux/pm.h
> > > >> +++ b/include/linux/pm.h
> > > >> @@ -55,8 +55,10 @@  struct device;
> > > >>
> > > >>  #ifdef CONFIG_PM
> > > >>  extern const char power_group_name[];		/* = "power" */
> > > >> +#define pm_ops_ptr(_ptr)	(_ptr)
> > > >>  #else
> > > >>  #define power_group_name	NULL
> > > >> +#define pm_ops_ptr(_ptr)	NULL
> > > >>  #endif
> > > >>
> > > >>
> > > >> This patch was accepted by Rafael Wysocki, and will be merged to v3.11-rc1.
> > > >>
> > > > Lars-Peter please update with and
> > >
> > > Since the code depends on CONFIG_PM_SLEEP and not CONFIG_PM I don't think
> > > the macro will work.
> > 
> > se please ad a similar macros too
> 
> Hi Jean-Christophe,
> 
> I added pm_sleep_ops_ptr() as below.
> Maybe you want it.
> There is no build warnings below 4 config situations.
>    a) CONFIG_PM is enabled.
>    b) only CONFIG_PM_SLEEP is enabled
>    c) only CONFIG_PM_RUNTIME is enabled
>    d) CONFIG_PM is NOT enabled.
> 
> --- a/drivers/video/bfin-lq035q1-fb.c
> +++ b/drivers/video/bfin-lq035q1-fb.c
> @@ -170,16 +170,19 @@ static int lq035q1_spidev_remove(struct spi_device *spi)
>         return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
>  }
> 
> -#ifdef CONFIG_PM
> -static int lq035q1_spidev_suspend(struct spi_device *spi, pm_message_t state)
> +#ifdef CONFIG_PM_SLEEP
> +static int lq035q1_spidev_suspend(struct device *dev)
>  {
> +       struct spi_device *spi = to_spi_device(dev);
> +
>         return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
>  }
> 
> -static int lq035q1_spidev_resume(struct spi_device *spi)
> +static int lq035q1_spidev_resume(struct device *dev)
>  {
> -       int ret;
> +       struct spi_device *spi = to_spi_device(dev);
>         struct spi_control *ctl = spi_get_drvdata(spi);
> +       int ret;
> 
>         ret = lq035q1_control(spi, LQ035_DRIVER_OUTPUT_CTL, ctl->mode);
>         if (ret)
> @@ -187,11 +190,11 @@ static int lq035q1_spidev_resume(struct spi_device *spi)
> 
>         return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_ON);
>  }
> -#else
> -# define lq035q1_spidev_suspend NULL
> -# define lq035q1_spidev_resume  NULL
>  #endif
> 
> +static SIMPLE_DEV_PM_OPS(lq035q1_spidev_pm_ops, lq035q1_spidev_suspend,
> +       lq035q1_spidev_resume);
> +
>  /* Power down all displays on reboot, poweroff or halt */
>  static void lq035q1_spidev_shutdown(struct spi_device *spi)
>  {
> @@ -708,8 +711,7 @@ static int bfin_lq035q1_probe(struct platform_device *pdev)
>         info->spidrv.probe    = lq035q1_spidev_probe;
>         info->spidrv.remove   = lq035q1_spidev_remove;
>         info->spidrv.shutdown = lq035q1_spidev_shutdown;
> -       info->spidrv.suspend  = lq035q1_spidev_suspend;
> -       info->spidrv.resume   = lq035q1_spidev_resume;
> +       info->spidrv.driver.pm = pm_sleep_ops_ptr(&lq035q1_spidev_pm_ops);
> 
>         ret = spi_register_driver(&info->spidrv);
>         if (ret < 0) {
> diff --git a/include/linux/pm.h b/include/linux/pm.h
> index bd50d15..999d652 100644
> --- a/include/linux/pm.h
> +++ b/include/linux/pm.h
> @@ -61,6 +61,12 @@ extern const char power_group_name[];                /* = "power" */
>  #define pm_ops_ptr(_ptr)       NULL
>  #endif
> 
> +#ifdef CONFIG_PM_SLEEP
> +#define pm_sleep_ops_ptr(_ptr) (_ptr)
> +#else
> +#define pm_sleep_ops_ptr(_ptr) NULL
> +#endif
> +
> 
> 
> Hi Rafael J. Wysocki,
> How about adding this pm_sleep_ops_ptr() macro?
> 
> My draft idea is below:
> However, I want other's better ideas. :)
> 
> 1. The case that only CONFIG_PM_SLEEP is necessary.
> #ifdef CONFIG_PM_SLEEP
> static int *_suspend(struct device *dev)
> 	[....]
> static int *_resume(struct device *dev)
> 	[....]
> #endif
> 
> static SIMPLE_DEV_PM_OPS(*_pm_ops, *_suspend, *_resume);
> 
> static struct {platform/spi/i2c/etc}_driver *_driver = {
> 	.driver = {
> 		.pm     = pm_sleep_ops_ptr(&*_pm_ops),
> 
> 
> 2. The case that both CONFIG_PM_SLEEP & CONFIG_PM_RUNTIME
>     are necessary.
> 
> #ifdef CONFIG_PM_SLEEP
> static int *_suspend(struct device *dev)
> 	[....]
> static int *_resume(struct device *dev)
> 	[....]
> #endif
> 
> #ifdef CONFIG_PM_RUNTIME
> static int *_runtime_suspend(struct device *dev)
> 	[....]
> static int *_runtime_resume(struct device *dev)
> 	[....]
> #endif
> 
> static const struct dev_pm_ops *_pm_ops = {
> 	SET_SYSTEM_SLEEP_PM_OPS(*_suspend, *_resume)
> 	SET_RUNTIME_PM_OPS(*_runtime_suspend, *_runtime_resume, NULL)
> };
> 
> static struct {platform/spi/i2c/etc}_driver *_driver = {
> 	.driver = {
> 		.pm     = pm_ops_ptr(&*_pm_ops),
> 
> 

yes for me

Best Regards,
J.
> 
> Best regards,
> Jingoo Han
> 
> 
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Rafael Wysocki June 2, 2013, 7:30 p.m. UTC | #2
On Friday, May 31, 2013 12:32:57 PM Jingoo Han wrote:
> On Thursday, May 30, 2013 7:46 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > On 09:52 Thu 30 May     , Lars-Peter Clausen wrote:
> > > On 05/30/2013 09:14 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > > On 09:32 Thu 30 May     , Jingoo Han wrote:
> > > >> On Thursday, May 30, 2013 4:20 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > >>> On 16:24 Wed 29 May     , Michael Hennerich wrote:
> > > >>>> On 05/29/2013 02:17 PM, Lars-Peter Clausen wrote:
> > > >>>>> Use dev_pm_ops instead of the legacy suspend/resume callbacks.
> > > >>>>>
> > > >>>>> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
> > > >>>> Acked-by: Michael Hennerich <michael.hennerich@analog.com>
> > > >>>>> ---
> > > >>>>>  drivers/video/bfin-lq035q1-fb.c | 22 ++++++++++++++--------
> > > >>>>>  1 file changed, 14 insertions(+), 8 deletions(-)
> > > >>>>>
> > > >>>>> diff --git a/drivers/video/bfin-lq035q1-fb.c b/drivers/video/bfin-lq035q1-fb.c
> > > >>>>> index 29d8c04..6084c17 100644
> > > >>>>> --- a/drivers/video/bfin-lq035q1-fb.c
> > > >>>>> +++ b/drivers/video/bfin-lq035q1-fb.c
> > > >>>>> @@ -170,16 +170,19 @@ static int lq035q1_spidev_remove(struct spi_device *spi)
> > > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
> > > >>>>>  }
> > > >>>>> -#ifdef CONFIG_PM
> > > >>>>> -static int lq035q1_spidev_suspend(struct spi_device *spi, pm_message_t state)
> > > >>>>> +#ifdef CONFIG_PM_SLEEP
> > > >>>>> +static int lq035q1_spidev_suspend(struct device *dev)
> > > >>>>>  {
> > > >>>>> +	struct spi_device *spi = to_spi_device(dev);
> > > >>>>> +
> > > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
> > > >>>>>  }
> > > >>>>> -static int lq035q1_spidev_resume(struct spi_device *spi)
> > > >>>>> +static int lq035q1_spidev_resume(struct device *dev)
> > > >>>>>  {
> > > >>>>> -	int ret;
> > > >>>>> +	struct spi_device *spi = to_spi_device(dev);
> > > >>>>>  	struct spi_control *ctl = spi_get_drvdata(spi);
> > > >>>>> +	int ret;
> > > >>>>>  	ret = lq035q1_control(spi, LQ035_DRIVER_OUTPUT_CTL, ctl->mode);
> > > >>>>>  	if (ret)
> > > >>>>> @@ -187,9 +190,13 @@ static int lq035q1_spidev_resume(struct spi_device *spi)
> > > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_ON);
> > > >>>>>  }
> > > >>>>> +
> > > >>>>> +static SIMPLE_DEV_PM_OPS(lq035q1_spidev_pm_ops, lq035q1_spidev_suspend,
> > > >>>>> +	lq035q1_spidev_resume);
> > > >>>>> +#define LQ035Q1_SPIDEV_PM_OPS (&lq035q1_spidev_pm_ops)
> > > >>>>> +
> > > >>>>>  #else
> > > >>>>> -# define lq035q1_spidev_suspend NULL
> > > >>>>> -# define lq035q1_spidev_resume  NULL
> > > >>>>> +#define LQ035Q1_SPIDEV_PM_OPS NULL
> > > >>>>>  #endif
> > > >>> we really need to ahve a macro like for DT of_match_ptr to drop the #else
> > > >>
> > > >> Hi Jean-Christophe PLAGNIOL-VILLARD,
> > > >>
> > > >> I submitted the following patch. :)
> > > >> (https://patchwork.kernel.org/patch/2502971/)
> > > >>
> > > >> --- a/include/linux/pm.h
> > > >> +++ b/include/linux/pm.h
> > > >> @@ -55,8 +55,10 @@  struct device;
> > > >>
> > > >>  #ifdef CONFIG_PM
> > > >>  extern const char power_group_name[];		/* = "power" */
> > > >> +#define pm_ops_ptr(_ptr)	(_ptr)
> > > >>  #else
> > > >>  #define power_group_name	NULL
> > > >> +#define pm_ops_ptr(_ptr)	NULL
> > > >>  #endif
> > > >>
> > > >>
> > > >> This patch was accepted by Rafael Wysocki, and will be merged to v3.11-rc1.
> > > >>
> > > > Lars-Peter please update with and
> > >
> > > Since the code depends on CONFIG_PM_SLEEP and not CONFIG_PM I don't think
> > > the macro will work.
> > 
> > se please ad a similar macros too
> 
> Hi Jean-Christophe,
> 
> I added pm_sleep_ops_ptr() as below.
> Maybe you want it.
> There is no build warnings below 4 config situations.
>    a) CONFIG_PM is enabled.
>    b) only CONFIG_PM_SLEEP is enabled
>    c) only CONFIG_PM_RUNTIME is enabled
>    d) CONFIG_PM is NOT enabled.
> 
> --- a/drivers/video/bfin-lq035q1-fb.c
> +++ b/drivers/video/bfin-lq035q1-fb.c
> @@ -170,16 +170,19 @@ static int lq035q1_spidev_remove(struct spi_device *spi)
>         return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
>  }
> 
> -#ifdef CONFIG_PM
> -static int lq035q1_spidev_suspend(struct spi_device *spi, pm_message_t state)
> +#ifdef CONFIG_PM_SLEEP
> +static int lq035q1_spidev_suspend(struct device *dev)
>  {
> +       struct spi_device *spi = to_spi_device(dev);
> +
>         return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
>  }
> 
> -static int lq035q1_spidev_resume(struct spi_device *spi)
> +static int lq035q1_spidev_resume(struct device *dev)
>  {
> -       int ret;
> +       struct spi_device *spi = to_spi_device(dev);
>         struct spi_control *ctl = spi_get_drvdata(spi);
> +       int ret;
> 
>         ret = lq035q1_control(spi, LQ035_DRIVER_OUTPUT_CTL, ctl->mode);
>         if (ret)
> @@ -187,11 +190,11 @@ static int lq035q1_spidev_resume(struct spi_device *spi)
> 
>         return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_ON);
>  }
> -#else
> -# define lq035q1_spidev_suspend NULL
> -# define lq035q1_spidev_resume  NULL
>  #endif
> 
> +static SIMPLE_DEV_PM_OPS(lq035q1_spidev_pm_ops, lq035q1_spidev_suspend,
> +       lq035q1_spidev_resume);
> +
>  /* Power down all displays on reboot, poweroff or halt */
>  static void lq035q1_spidev_shutdown(struct spi_device *spi)
>  {
> @@ -708,8 +711,7 @@ static int bfin_lq035q1_probe(struct platform_device *pdev)
>         info->spidrv.probe    = lq035q1_spidev_probe;
>         info->spidrv.remove   = lq035q1_spidev_remove;
>         info->spidrv.shutdown = lq035q1_spidev_shutdown;
> -       info->spidrv.suspend  = lq035q1_spidev_suspend;
> -       info->spidrv.resume   = lq035q1_spidev_resume;
> +       info->spidrv.driver.pm = pm_sleep_ops_ptr(&lq035q1_spidev_pm_ops);
> 
>         ret = spi_register_driver(&info->spidrv);
>         if (ret < 0) {
> diff --git a/include/linux/pm.h b/include/linux/pm.h
> index bd50d15..999d652 100644
> --- a/include/linux/pm.h
> +++ b/include/linux/pm.h
> @@ -61,6 +61,12 @@ extern const char power_group_name[];                /* = "power" */
>  #define pm_ops_ptr(_ptr)       NULL
>  #endif
> 
> +#ifdef CONFIG_PM_SLEEP
> +#define pm_sleep_ops_ptr(_ptr) (_ptr)
> +#else
> +#define pm_sleep_ops_ptr(_ptr) NULL
> +#endif
> +
> 
> 
> Hi Rafael J. Wysocki,
> How about adding this pm_sleep_ops_ptr() macro?

Are you submitting this instead or in addition to your patch I have in the
linux-next branch?

Rafael


> My draft idea is below:
> However, I want other's better ideas. :)
> 
> 1. The case that only CONFIG_PM_SLEEP is necessary.
> #ifdef CONFIG_PM_SLEEP
> static int *_suspend(struct device *dev)
> 	[....]
> static int *_resume(struct device *dev)
> 	[....]
> #endif
> 
> static SIMPLE_DEV_PM_OPS(*_pm_ops, *_suspend, *_resume);
> 
> static struct {platform/spi/i2c/etc}_driver *_driver = {
> 	.driver = {
> 		.pm     = pm_sleep_ops_ptr(&*_pm_ops),
> 
> 
> 2. The case that both CONFIG_PM_SLEEP & CONFIG_PM_RUNTIME
>     are necessary.
> 
> #ifdef CONFIG_PM_SLEEP
> static int *_suspend(struct device *dev)
> 	[....]
> static int *_resume(struct device *dev)
> 	[....]
> #endif
> 
> #ifdef CONFIG_PM_RUNTIME
> static int *_runtime_suspend(struct device *dev)
> 	[....]
> static int *_runtime_resume(struct device *dev)
> 	[....]
> #endif
> 
> static const struct dev_pm_ops *_pm_ops = {
> 	SET_SYSTEM_SLEEP_PM_OPS(*_suspend, *_resume)
> 	SET_RUNTIME_PM_OPS(*_runtime_suspend, *_runtime_resume, NULL)
> };
> 
> static struct {platform/spi/i2c/etc}_driver *_driver = {
> 	.driver = {
> 		.pm     = pm_ops_ptr(&*_pm_ops),
> 
> 
> 
> Best regards,
> Jingoo Han
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-pm" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
Jingoo Han June 3, 2013, 5:15 a.m. UTC | #3
On Monday, June 03, 2013 4:30 AM, Rafael J. Wysocki wrote:
> On Friday, May 31, 2013 12:32:57 PM Jingoo Han wrote:
> > On Thursday, May 30, 2013 7:46 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > On 09:52 Thu 30 May     , Lars-Peter Clausen wrote:
> > > > On 05/30/2013 09:14 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > > > On 09:32 Thu 30 May     , Jingoo Han wrote:
> > > > >> On Thursday, May 30, 2013 4:20 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > > >>> On 16:24 Wed 29 May     , Michael Hennerich wrote:
> > > > >>>> On 05/29/2013 02:17 PM, Lars-Peter Clausen wrote:
> > > > >>>>> Use dev_pm_ops instead of the legacy suspend/resume callbacks.
> > > > >>>>>
> > > > >>>>> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
> > > > >>>> Acked-by: Michael Hennerich <michael.hennerich@analog.com>
> > > > >>>>> ---
> > > > >>>>>  drivers/video/bfin-lq035q1-fb.c | 22 ++++++++++++++--------
> > > > >>>>>  1 file changed, 14 insertions(+), 8 deletions(-)
> > > > >>>>>
> > > > >>>>> diff --git a/drivers/video/bfin-lq035q1-fb.c b/drivers/video/bfin-lq035q1-fb.c
> > > > >>>>> index 29d8c04..6084c17 100644
> > > > >>>>> --- a/drivers/video/bfin-lq035q1-fb.c
> > > > >>>>> +++ b/drivers/video/bfin-lq035q1-fb.c
> > > > >>>>> @@ -170,16 +170,19 @@ static int lq035q1_spidev_remove(struct spi_device *spi)
> > > > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
> > > > >>>>>  }
> > > > >>>>> -#ifdef CONFIG_PM
> > > > >>>>> -static int lq035q1_spidev_suspend(struct spi_device *spi, pm_message_t state)
> > > > >>>>> +#ifdef CONFIG_PM_SLEEP
> > > > >>>>> +static int lq035q1_spidev_suspend(struct device *dev)
> > > > >>>>>  {
> > > > >>>>> +	struct spi_device *spi = to_spi_device(dev);
> > > > >>>>> +
> > > > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
> > > > >>>>>  }
> > > > >>>>> -static int lq035q1_spidev_resume(struct spi_device *spi)
> > > > >>>>> +static int lq035q1_spidev_resume(struct device *dev)
> > > > >>>>>  {
> > > > >>>>> -	int ret;
> > > > >>>>> +	struct spi_device *spi = to_spi_device(dev);
> > > > >>>>>  	struct spi_control *ctl = spi_get_drvdata(spi);
> > > > >>>>> +	int ret;
> > > > >>>>>  	ret = lq035q1_control(spi, LQ035_DRIVER_OUTPUT_CTL, ctl->mode);
> > > > >>>>>  	if (ret)
> > > > >>>>> @@ -187,9 +190,13 @@ static int lq035q1_spidev_resume(struct spi_device *spi)
> > > > >>>>>  	return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_ON);
> > > > >>>>>  }
> > > > >>>>> +
> > > > >>>>> +static SIMPLE_DEV_PM_OPS(lq035q1_spidev_pm_ops, lq035q1_spidev_suspend,
> > > > >>>>> +	lq035q1_spidev_resume);
> > > > >>>>> +#define LQ035Q1_SPIDEV_PM_OPS (&lq035q1_spidev_pm_ops)
> > > > >>>>> +
> > > > >>>>>  #else
> > > > >>>>> -# define lq035q1_spidev_suspend NULL
> > > > >>>>> -# define lq035q1_spidev_resume  NULL
> > > > >>>>> +#define LQ035Q1_SPIDEV_PM_OPS NULL
> > > > >>>>>  #endif
> > > > >>> we really need to ahve a macro like for DT of_match_ptr to drop the #else
> > > > >>
> > > > >> Hi Jean-Christophe PLAGNIOL-VILLARD,
> > > > >>
> > > > >> I submitted the following patch. :)
> > > > >> (https://patchwork.kernel.org/patch/2502971/)
> > > > >>
> > > > >> --- a/include/linux/pm.h
> > > > >> +++ b/include/linux/pm.h
> > > > >> @@ -55,8 +55,10 @@  struct device;
> > > > >>
> > > > >>  #ifdef CONFIG_PM
> > > > >>  extern const char power_group_name[];		/* = "power" */
> > > > >> +#define pm_ops_ptr(_ptr)	(_ptr)
> > > > >>  #else
> > > > >>  #define power_group_name	NULL
> > > > >> +#define pm_ops_ptr(_ptr)	NULL
> > > > >>  #endif
> > > > >>
> > > > >>
> > > > >> This patch was accepted by Rafael Wysocki, and will be merged to v3.11-rc1.
> > > > >>
> > > > > Lars-Peter please update with and
> > > >
> > > > Since the code depends on CONFIG_PM_SLEEP and not CONFIG_PM I don't think
> > > > the macro will work.
> > >
> > > se please ad a similar macros too
> >
> > Hi Jean-Christophe,
> >
> > I added pm_sleep_ops_ptr() as below.
> > Maybe you want it.
> > There is no build warnings below 4 config situations.
> >    a) CONFIG_PM is enabled.
> >    b) only CONFIG_PM_SLEEP is enabled
> >    c) only CONFIG_PM_RUNTIME is enabled
> >    d) CONFIG_PM is NOT enabled.
> >
> > --- a/drivers/video/bfin-lq035q1-fb.c
> > +++ b/drivers/video/bfin-lq035q1-fb.c
> > @@ -170,16 +170,19 @@ static int lq035q1_spidev_remove(struct spi_device *spi)
> >         return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
> >  }
> >
> > -#ifdef CONFIG_PM
> > -static int lq035q1_spidev_suspend(struct spi_device *spi, pm_message_t state)
> > +#ifdef CONFIG_PM_SLEEP
> > +static int lq035q1_spidev_suspend(struct device *dev)
> >  {
> > +       struct spi_device *spi = to_spi_device(dev);
> > +
> >         return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
> >  }
> >
> > -static int lq035q1_spidev_resume(struct spi_device *spi)
> > +static int lq035q1_spidev_resume(struct device *dev)
> >  {
> > -       int ret;
> > +       struct spi_device *spi = to_spi_device(dev);
> >         struct spi_control *ctl = spi_get_drvdata(spi);
> > +       int ret;
> >
> >         ret = lq035q1_control(spi, LQ035_DRIVER_OUTPUT_CTL, ctl->mode);
> >         if (ret)
> > @@ -187,11 +190,11 @@ static int lq035q1_spidev_resume(struct spi_device *spi)
> >
> >         return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_ON);
> >  }
> > -#else
> > -# define lq035q1_spidev_suspend NULL
> > -# define lq035q1_spidev_resume  NULL
> >  #endif
> >
> > +static SIMPLE_DEV_PM_OPS(lq035q1_spidev_pm_ops, lq035q1_spidev_suspend,
> > +       lq035q1_spidev_resume);
> > +
> >  /* Power down all displays on reboot, poweroff or halt */
> >  static void lq035q1_spidev_shutdown(struct spi_device *spi)
> >  {
> > @@ -708,8 +711,7 @@ static int bfin_lq035q1_probe(struct platform_device *pdev)
> >         info->spidrv.probe    = lq035q1_spidev_probe;
> >         info->spidrv.remove   = lq035q1_spidev_remove;
> >         info->spidrv.shutdown = lq035q1_spidev_shutdown;
> > -       info->spidrv.suspend  = lq035q1_spidev_suspend;
> > -       info->spidrv.resume   = lq035q1_spidev_resume;
> > +       info->spidrv.driver.pm = pm_sleep_ops_ptr(&lq035q1_spidev_pm_ops);
> >
> >         ret = spi_register_driver(&info->spidrv);
> >         if (ret < 0) {
> > diff --git a/include/linux/pm.h b/include/linux/pm.h
> > index bd50d15..999d652 100644
> > --- a/include/linux/pm.h
> > +++ b/include/linux/pm.h
> > @@ -61,6 +61,12 @@ extern const char power_group_name[];                /* = "power" */
> >  #define pm_ops_ptr(_ptr)       NULL
> >  #endif
> >
> > +#ifdef CONFIG_PM_SLEEP
> > +#define pm_sleep_ops_ptr(_ptr) (_ptr)
> > +#else
> > +#define pm_sleep_ops_ptr(_ptr) NULL
> > +#endif
> > +
> >
> >
> > Hi Rafael J. Wysocki,
> > How about adding this pm_sleep_ops_ptr() macro?
> 
> Are you submitting this instead or in addition to your patch I have in the
> linux-next branch?

Hi Rafael,

I will submit this patch, soon.
Thanks. :)

Best regards,
Jingoo Han

> 
> Rafael
> 
> 
> > My draft idea is below:
> > However, I want other's better ideas. :)
> >
> > 1. The case that only CONFIG_PM_SLEEP is necessary.
> > #ifdef CONFIG_PM_SLEEP
> > static int *_suspend(struct device *dev)
> > 	[....]
> > static int *_resume(struct device *dev)
> > 	[....]
> > #endif
> >
> > static SIMPLE_DEV_PM_OPS(*_pm_ops, *_suspend, *_resume);
> >
> > static struct {platform/spi/i2c/etc}_driver *_driver = {
> > 	.driver = {
> > 		.pm     = pm_sleep_ops_ptr(&*_pm_ops),
> >
> >
> > 2. The case that both CONFIG_PM_SLEEP & CONFIG_PM_RUNTIME
> >     are necessary.
> >
> > #ifdef CONFIG_PM_SLEEP
> > static int *_suspend(struct device *dev)
> > 	[....]
> > static int *_resume(struct device *dev)
> > 	[....]
> > #endif
> >
> > #ifdef CONFIG_PM_RUNTIME
> > static int *_runtime_suspend(struct device *dev)
> > 	[....]
> > static int *_runtime_resume(struct device *dev)
> > 	[....]
> > #endif
> >
> > static const struct dev_pm_ops *_pm_ops = {
> > 	SET_SYSTEM_SLEEP_PM_OPS(*_suspend, *_resume)
> > 	SET_RUNTIME_PM_OPS(*_runtime_suspend, *_runtime_resume, NULL)
> > };
> >
> > static struct {platform/spi/i2c/etc}_driver *_driver = {
> > 	.driver = {
> > 		.pm     = pm_ops_ptr(&*_pm_ops),
> >
> >
> >
> > Best regards,
> > Jingoo Han
> >
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-pm" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> --
> I speak only for myself.
> Rafael J. Wysocki, Intel Open Source Technology Center.

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diff mbox

Patch

--- a/drivers/video/bfin-lq035q1-fb.c
+++ b/drivers/video/bfin-lq035q1-fb.c
@@ -170,16 +170,19 @@  static int lq035q1_spidev_remove(struct spi_device *spi)
        return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
 }

-#ifdef CONFIG_PM
-static int lq035q1_spidev_suspend(struct spi_device *spi, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int lq035q1_spidev_suspend(struct device *dev)
 {
+       struct spi_device *spi = to_spi_device(dev);
+
        return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_SHUT);
 }

-static int lq035q1_spidev_resume(struct spi_device *spi)
+static int lq035q1_spidev_resume(struct device *dev)
 {
-       int ret;
+       struct spi_device *spi = to_spi_device(dev);
        struct spi_control *ctl = spi_get_drvdata(spi);
+       int ret;

        ret = lq035q1_control(spi, LQ035_DRIVER_OUTPUT_CTL, ctl->mode);
        if (ret)
@@ -187,11 +190,11 @@  static int lq035q1_spidev_resume(struct spi_device *spi)

        return lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_ON);
 }
-#else
-# define lq035q1_spidev_suspend NULL
-# define lq035q1_spidev_resume  NULL
 #endif

+static SIMPLE_DEV_PM_OPS(lq035q1_spidev_pm_ops, lq035q1_spidev_suspend,
+       lq035q1_spidev_resume);
+
 /* Power down all displays on reboot, poweroff or halt */
 static void lq035q1_spidev_shutdown(struct spi_device *spi)
 {
@@ -708,8 +711,7 @@  static int bfin_lq035q1_probe(struct platform_device *pdev)
        info->spidrv.probe    = lq035q1_spidev_probe;
        info->spidrv.remove   = lq035q1_spidev_remove;
        info->spidrv.shutdown = lq035q1_spidev_shutdown;
-       info->spidrv.suspend  = lq035q1_spidev_suspend;
-       info->spidrv.resume   = lq035q1_spidev_resume;
+       info->spidrv.driver.pm = pm_sleep_ops_ptr(&lq035q1_spidev_pm_ops);

        ret = spi_register_driver(&info->spidrv);
        if (ret < 0) {
diff --git a/include/linux/pm.h b/include/linux/pm.h
index bd50d15..999d652 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -61,6 +61,12 @@  extern const char power_group_name[];                /* = "power" */
 #define pm_ops_ptr(_ptr)       NULL
 #endif

+#ifdef CONFIG_PM_SLEEP
+#define pm_sleep_ops_ptr(_ptr) (_ptr)
+#else
+#define pm_sleep_ops_ptr(_ptr) NULL
+#endif
+


Hi Rafael J. Wysocki,