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Commit 7496fcbe authored by Amit Daniel Kachhap's avatar Amit Daniel Kachhap Committed by Rafael J. Wysocki
Browse files

PM / Domains: Export of_genpd_get_from_provider function 



This function looks up a PM domain form the provider. This will be
useful to add parent/child domain relationship from the SoC specific
code. The caller of the function must make sure that PM domain provider
is already registered.

Reviewed-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarAmit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent cffa9138

drivers/base/power/domain.c

+2 −1
Original line number Diff line number Diff line
@@ -2108,7 +2108,7 @@ EXPORT_SYMBOL_GPL(of_genpd_del_provider); 
 * Returns a valid pointer to struct generic_pm_domain on success or ERR_PTR()

 * on failure.

 */

static struct generic_pm_domain *of_genpd_get_from_provider(

struct generic_pm_domain *of_genpd_get_from_provider(

					struct of_phandle_args *genpdspec)

{

	struct generic_pm_domain *genpd = ERR_PTR(-ENOENT);
@@ -2128,6 +2128,7 @@ static struct generic_pm_domain *of_genpd_get_from_provider( 


	return genpd;

}

EXPORT_SYMBOL_GPL(of_genpd_get_from_provider);



/**

 * genpd_dev_pm_detach - Detach a device from its PM domain.

include/linux/pm_domain.h

+8 −0
Original line number Diff line number Diff line
@@ -275,6 +275,8 @@ typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args, 
int __of_genpd_add_provider(struct device_node *np, genpd_xlate_t xlate,

			void *data);

void of_genpd_del_provider(struct device_node *np);

struct generic_pm_domain *of_genpd_get_from_provider(

			struct of_phandle_args *genpdspec);



struct generic_pm_domain *__of_genpd_xlate_simple(

					struct of_phandle_args *genpdspec,
@@ -292,6 +294,12 @@ static inline int __of_genpd_add_provider(struct device_node *np, 
}

static inline void of_genpd_del_provider(struct device_node *np) {}



static inline struct generic_pm_domain *of_genpd_get_from_provider(

			struct of_phandle_args *genpdspec)

{

	return NULL;

}



#define __of_genpd_xlate_simple		NULL

#define __of_genpd_xlate_onecell	NULL