From 7496fcbe8a643097efc061160e1c3b65ee2fa350 Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Mon, 15 Dec 2014 09:08:59 +0530 Subject: [PATCH] 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: Ulf Hansson Signed-off-by: Amit Daniel Kachhap Signed-off-by: Rafael J. Wysocki --- drivers/base/power/domain.c | 3 ++- include/linux/pm_domain.h | 8 ++++++++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 5d7b7548873a..1bd119efaac1 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -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. diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 1dd6c7f64166..ba7ca5468a7b 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -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 -- GitLab