| Message ID | 20230717172821.62827-5-andriy.shevchenko@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | pinctrl: Provide NOIRQ PM helper and use it | expand |
Hi Andy, Le lundi 17 juillet 2023 à 20:28 +0300, Andy Shevchenko a écrit : > 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; > > - Unrelated change. > 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 So the correct way to update this driver would be to have a conditionally-exported dev_pm_ops structure: EXPORT_GPL_DEV_PM_OPS(intel_pinctrl_pm_ops) = { NOIRQ_SYSTEM_SLEEP_PM_OPS(intel_pinctrl_suspend_noirq, intel_pinctrl_resume_noirq), }; Then your two callbacks can be "static" and without #ifdef guards. The resulting "intel_pinctrl_pm_ops" can be marked as "extern" in the pinctrl-intel.h without any guards, as long as it is only referenced with the pm_ptr() macro. Cheers, -Paul > > 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 */
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 */
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.
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
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 */
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(-)