pinctrl: Provide NOIRQ PM helper and use it

[PATCH v2 04/10] pinctrl: intel: Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helper

Posted by Andy Shevchenko 1 year, 2 months ago

Since pm.h provides a helper for system no-IRQ PM callbacks,
switch the driver to use it instead of open coded variant.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/pinctrl/intel/pinctrl-intel.c | 5 +----
 drivers/pinctrl/intel/pinctrl-intel.h | 9 ++-------
 2 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 64c3e62b4348..40e45c4889ee 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -929,7 +929,7 @@ static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset,
  *
  * Return: a GPIO offset, or negative error code if translation can't be done.
  */
-static __maybe_unused int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
+static int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
 {
 	const struct intel_community *community;
 	const struct intel_padgroup *padgrp;
@@ -1488,7 +1488,6 @@ static int intel_pinctrl_pm_init(struct intel_pinctrl *pctrl)
 	if (!communities)
 		return -ENOMEM;
 
-
 	for (i = 0; i < pctrl->ncommunities; i++) {
 		struct intel_community *community = &pctrl->communities[i];
 		u32 *intmask, *hostown;
@@ -1712,7 +1711,6 @@ const struct intel_pinctrl_soc_data *intel_pinctrl_get_soc_data(struct platform_
 }
 EXPORT_SYMBOL_GPL(intel_pinctrl_get_soc_data);
 
-#ifdef CONFIG_PM_SLEEP
 static bool __intel_gpio_is_direct_irq(u32 value)
 {
 	return (value & PADCFG0_GPIROUTIOXAPIC) && (value & PADCFG0_GPIOTXDIS) &&
@@ -1913,7 +1911,6 @@ int intel_pinctrl_resume_noirq(struct device *dev)
 	return 0;
 }
 EXPORT_SYMBOL_GPL(intel_pinctrl_resume_noirq);
-#endif
 
 MODULE_AUTHOR("Mathias Nyman <mathias.nyman@linux.intel.com>");
 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h
index 1faf2ada480a..65b1699a2ed5 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.h
+++ b/drivers/pinctrl/intel/pinctrl-intel.h
@@ -255,15 +255,10 @@ struct intel_pinctrl {
 int intel_pinctrl_probe_by_hid(struct platform_device *pdev);
 int intel_pinctrl_probe_by_uid(struct platform_device *pdev);
 
-#ifdef CONFIG_PM_SLEEP
 int intel_pinctrl_suspend_noirq(struct device *dev);
 int intel_pinctrl_resume_noirq(struct device *dev);
-#endif
 
-#define INTEL_PINCTRL_PM_OPS(_name)					\
-const struct dev_pm_ops _name = {					\
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(intel_pinctrl_suspend_noirq,	\
-				      intel_pinctrl_resume_noirq)	\
-}
+#define INTEL_PINCTRL_PM_OPS(_name)								\
+	DEFINE_NOIRQ_DEV_PM_OPS(_name, intel_pinctrl_suspend_noirq, intel_pinctrl_resume_noirq)
 
 #endif /* PINCTRL_INTEL_H */
-- 
2.40.0.1.gaa8946217a0b

Re: [PATCH v2 04/10] pinctrl: intel: Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helper

Posted by Jonathan Cameron 1 year, 2 months ago

On Mon, 17 Jul 2023 20:28:15 +0300
Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote:

> Since pm.h provides a helper for system no-IRQ PM callbacks,
> switch the driver to use it instead of open coded variant.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/pinctrl/intel/pinctrl-intel.c | 5 +----
>  drivers/pinctrl/intel/pinctrl-intel.h | 9 ++-------
>  2 files changed, 3 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
> index 64c3e62b4348..40e45c4889ee 100644
> --- a/drivers/pinctrl/intel/pinctrl-intel.c
> +++ b/drivers/pinctrl/intel/pinctrl-intel.c
> @@ -929,7 +929,7 @@ static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset,
>   *
>   * Return: a GPIO offset, or negative error code if translation can't be done.
>   */
> -static __maybe_unused int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
> +static int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
>  {
>  	const struct intel_community *community;
>  	const struct intel_padgroup *padgrp;
> @@ -1488,7 +1488,6 @@ static int intel_pinctrl_pm_init(struct intel_pinctrl *pctrl)
>  	if (!communities)
>  		return -ENOMEM;
>  
> -
>  	for (i = 0; i < pctrl->ncommunities; i++) {
>  		struct intel_community *community = &pctrl->communities[i];
>  		u32 *intmask, *hostown;
> @@ -1712,7 +1711,6 @@ const struct intel_pinctrl_soc_data *intel_pinctrl_get_soc_data(struct platform_
>  }
>  EXPORT_SYMBOL_GPL(intel_pinctrl_get_soc_data);
>  
> -#ifdef CONFIG_PM_SLEEP
>  static bool __intel_gpio_is_direct_irq(u32 value)
>  {
>  	return (value & PADCFG0_GPIROUTIOXAPIC) && (value & PADCFG0_GPIOTXDIS) &&
> @@ -1913,7 +1911,6 @@ int intel_pinctrl_resume_noirq(struct device *dev)
>  	return 0;
>  }
>  EXPORT_SYMBOL_GPL(intel_pinctrl_resume_noirq);
> -#endif

Can you check if this is successfully removed?  I think it won't be.
Not immediately obvious how to tidy that up given these are used
in a macro called from lots of drivers.

Maybe just leaving the ifdef is best we can do here.



>  
>  MODULE_AUTHOR("Mathias Nyman <mathias.nyman@linux.intel.com>");
>  MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
> diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h
> index 1faf2ada480a..65b1699a2ed5 100644
> --- a/drivers/pinctrl/intel/pinctrl-intel.h
> +++ b/drivers/pinctrl/intel/pinctrl-intel.h
> @@ -255,15 +255,10 @@ struct intel_pinctrl {
>  int intel_pinctrl_probe_by_hid(struct platform_device *pdev);
>  int intel_pinctrl_probe_by_uid(struct platform_device *pdev);
>  
> -#ifdef CONFIG_PM_SLEEP
>  int intel_pinctrl_suspend_noirq(struct device *dev);
>  int intel_pinctrl_resume_noirq(struct device *dev);
> -#endif
>  
> -#define INTEL_PINCTRL_PM_OPS(_name)					\
> -const struct dev_pm_ops _name = {					\
> -	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(intel_pinctrl_suspend_noirq,	\
> -				      intel_pinctrl_resume_noirq)	\
> -}
> +#define INTEL_PINCTRL_PM_OPS(_name)								\
> +	DEFINE_NOIRQ_DEV_PM_OPS(_name, intel_pinctrl_suspend_noirq, intel_pinctrl_resume_noirq)
>  
>  #endif /* PINCTRL_INTEL_H */

Re: [PATCH v2 04/10] pinctrl: intel: Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helper

Posted by Andy Shevchenko 1 year, 2 months ago

On Tue, Jul 18, 2023 at 11:04:51AM +0100, Jonathan Cameron wrote:
> On Mon, 17 Jul 2023 20:28:15 +0300
> Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote:

...

> >  EXPORT_SYMBOL_GPL(intel_pinctrl_resume_noirq);
> 
> Can you check if this is successfully removed?  I think it won't be.
> Not immediately obvious how to tidy that up given these are used
> in a macro called from lots of drivers.

That's what Paul noticed I think with his proposal to export only the ops
variable and make these to be static.

> Maybe just leaving the ifdef is best we can do here.

See above.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v2 04/10] pinctrl: intel: Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helper

Posted by Jonathan Cameron 1 year, 2 months ago

On Tue, 18 Jul 2023 16:53:29 +0300
Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote:

> On Tue, Jul 18, 2023 at 11:04:51AM +0100, Jonathan Cameron wrote:
> > On Mon, 17 Jul 2023 20:28:15 +0300
> > Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote:  
> 
> ...
> 
> > >  EXPORT_SYMBOL_GPL(intel_pinctrl_resume_noirq);  
> > 
> > Can you check if this is successfully removed?  I think it won't be.
> > Not immediately obvious how to tidy that up given these are used
> > in a macro called from lots of drivers.  
> 
> That's what Paul noticed I think with his proposal to export only the ops
> variable and make these to be static.
> 
> > Maybe just leaving the ifdef is best we can do here.  
> 
> See above.
> 
Ah. I noticed it was a macro, but not that all it did was
set the name of the resulting structure (so thought you couldn't
use the export approach).

Indeed that's the best option here

Jonathan