| Message ID | 1720763312-13018-2-git-send-email-quic_dikshita@quicinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/2] PM: domains: add device managed version of dev_pm_domain_attach|detach_list() | expand |
On 12/07/2024 06:48, Dikshita Agarwal wrote: > This patch adds the devres-enabled version of dev_pm_domain_attach|detach_list. > If client drivers use devm_pm_domain_attach_list() to attach the PM domains, > devm_pm_domain_detach_list() will be invoked implicitly during remove phase. > > Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com> > --- > + num_pds = dev_pm_domain_attach_list(dev, data, list); > + > + ret = devm_add_action_or_reset(dev, devm_pm_domain_detach_list, (void *)list); Fairly sure that cast isn't necessary eg drivers/input/touchscreen/ili210x.c::ili210x_i2c_probe() drivers/power/supply/axp288_fuel_gauge.c::axp288_fuel_gauge_probe() --- bod
On Fri, Jul 12, 2024 at 11:18:30AM +0530, Dikshita Agarwal wrote: > This patch adds the devres-enabled version of dev_pm_domain_attach|detach_list. > If client drivers use devm_pm_domain_attach_list() to attach the PM domains, > devm_pm_domain_detach_list() will be invoked implicitly during remove phase. > > Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com> > --- > drivers/base/power/common.c | 41 +++++++++++++++++++++++++++++++++++++++++ > include/linux/pm_domain.h | 4 ++++ > 2 files changed, 45 insertions(+) > > diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c > index 327d168..082691e 100644 > --- a/drivers/base/power/common.c > +++ b/drivers/base/power/common.c > @@ -277,6 +277,47 @@ int dev_pm_domain_attach_list(struct device *dev, > EXPORT_SYMBOL_GPL(dev_pm_domain_attach_list); > > /** > + * dev_pm_domain_detach_list - devres-enabled version of dev_pm_domain_detach_list. > + * @list: The list of PM domains to detach. > + * > + * This function reverse the actions from devm_pm_domain_attach_list(). > + * it will be invoked during the remove phase from drivers implicitly if driver > + * uses devm_pm_domain_attach_list() to attach the PM domains. > + */ > +void devm_pm_domain_detach_list(void *_list) > +{ > + struct dev_pm_domain_list *list = _list; > + > + dev_pm_domain_detach_list(list); > +} > +EXPORT_SYMBOL_GPL(devm_pm_domain_detach_list); > + > +/** > + * devm_pm_domain_attach_list - devres-enabled version of dev_pm_domain_attach_list > + * > + * NOTE: this will also handle calling devm_pm_domain_detach_list() for > + * you during remove phase. > + * > + * Returns the number of attached PM domains or a negative error code in case of > + * a failure. > + */ > +int devm_pm_domain_attach_list(struct device *dev, > + const struct dev_pm_domain_attach_data *data, > + struct dev_pm_domain_list **list) > +{ > + int ret, num_pds = 0; > + > + num_pds = dev_pm_domain_attach_list(dev, data, list); > + > + ret = devm_add_action_or_reset(dev, devm_pm_domain_detach_list, (void *)list); > + if (ret) > + return ret; > + > + return num_pds; > +} > +EXPORT_SYMBOL_GPL(devm_pm_domain_attach_list); > + > +/** > * dev_pm_domain_detach - Detach a device from its PM domain. > * @dev: Device to detach. > * @power_off: Used to indicate whether we should power off the device. > diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h > index 772d328..2f00150 100644 > --- a/include/linux/pm_domain.h > +++ b/include/linux/pm_domain.h > @@ -450,8 +450,12 @@ struct device *dev_pm_domain_attach_by_name(struct device *dev, > int dev_pm_domain_attach_list(struct device *dev, > const struct dev_pm_domain_attach_data *data, > struct dev_pm_domain_list **list); > +int devm_pm_domain_attach_list(struct device *dev, > + const struct dev_pm_domain_attach_data *data, > + struct dev_pm_domain_list **list); > void dev_pm_domain_detach(struct device *dev, bool power_off); > void dev_pm_domain_detach_list(struct dev_pm_domain_list *list); > +void devm_pm_domain_detach_list(void *list); > int dev_pm_domain_start(struct device *dev); > void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd); > int dev_pm_domain_set_performance_state(struct device *dev, unsigned int state); The stub functions for the newly added functions are missing in this patch. They would be needed for !CONFIG_PM case. Thanks, Pavan
diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c index 327d168..082691e 100644 --- a/drivers/base/power/common.c +++ b/drivers/base/power/common.c @@ -277,6 +277,47 @@ int dev_pm_domain_attach_list(struct device *dev, EXPORT_SYMBOL_GPL(dev_pm_domain_attach_list); /** + * dev_pm_domain_detach_list - devres-enabled version of dev_pm_domain_detach_list. + * @list: The list of PM domains to detach. + * + * This function reverse the actions from devm_pm_domain_attach_list(). + * it will be invoked during the remove phase from drivers implicitly if driver + * uses devm_pm_domain_attach_list() to attach the PM domains. + */ +void devm_pm_domain_detach_list(void *_list) +{ + struct dev_pm_domain_list *list = _list; + + dev_pm_domain_detach_list(list); +} +EXPORT_SYMBOL_GPL(devm_pm_domain_detach_list); + +/** + * devm_pm_domain_attach_list - devres-enabled version of dev_pm_domain_attach_list + * + * NOTE: this will also handle calling devm_pm_domain_detach_list() for + * you during remove phase. + * + * Returns the number of attached PM domains or a negative error code in case of + * a failure. + */ +int devm_pm_domain_attach_list(struct device *dev, + const struct dev_pm_domain_attach_data *data, + struct dev_pm_domain_list **list) +{ + int ret, num_pds = 0; + + num_pds = dev_pm_domain_attach_list(dev, data, list); + + ret = devm_add_action_or_reset(dev, devm_pm_domain_detach_list, (void *)list); + if (ret) + return ret; + + return num_pds; +} +EXPORT_SYMBOL_GPL(devm_pm_domain_attach_list); + +/** * dev_pm_domain_detach - Detach a device from its PM domain. * @dev: Device to detach. * @power_off: Used to indicate whether we should power off the device. diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 772d328..2f00150 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -450,8 +450,12 @@ struct device *dev_pm_domain_attach_by_name(struct device *dev, int dev_pm_domain_attach_list(struct device *dev, const struct dev_pm_domain_attach_data *data, struct dev_pm_domain_list **list); +int devm_pm_domain_attach_list(struct device *dev, + const struct dev_pm_domain_attach_data *data, + struct dev_pm_domain_list **list); void dev_pm_domain_detach(struct device *dev, bool power_off); void dev_pm_domain_detach_list(struct dev_pm_domain_list *list); +void devm_pm_domain_detach_list(void *list); int dev_pm_domain_start(struct device *dev); void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd); int dev_pm_domain_set_performance_state(struct device *dev, unsigned int state);
This patch adds the devres-enabled version of dev_pm_domain_attach|detach_list. If client drivers use devm_pm_domain_attach_list() to attach the PM domains, devm_pm_domain_detach_list() will be invoked implicitly during remove phase. Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com> --- drivers/base/power/common.c | 41 +++++++++++++++++++++++++++++++++++++++++ include/linux/pm_domain.h | 4 ++++ 2 files changed, 45 insertions(+)