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    Subject[PATCH RFC v2 07/12] PM / Domains: export pm_genpd_lookup_name
    Date
    This API may be needed to set the power domain parent/child relationship
    in the power domain platform driver. The parent relationship is
    generally set after the child power domain is registered with the power
    domain subsystem. In this case, pm_genpd_lookup_name API might be
    useful.

    Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
    ---
    drivers/base/power/domain.c | 3 ++-
    include/linux/pm_domain.h | 7 +++++++
    2 files changed, 9 insertions(+), 1 deletion(-)

    diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
    index fb83d4a..b0e1c2f 100644
    --- a/drivers/base/power/domain.c
    +++ b/drivers/base/power/domain.c
    @@ -49,7 +49,7 @@
    static LIST_HEAD(gpd_list);
    static DEFINE_MUTEX(gpd_list_lock);

    -static struct generic_pm_domain *pm_genpd_lookup_name(const char *domain_name)
    +struct generic_pm_domain *pm_genpd_lookup_name(const char *domain_name)
    {
    struct generic_pm_domain *genpd = NULL, *gpd;

    @@ -66,6 +66,7 @@ static struct generic_pm_domain *pm_genpd_lookup_name(const char *domain_name)
    mutex_unlock(&gpd_list_lock);
    return genpd;
    }
    +EXPORT_SYMBOL_GPL(pm_genpd_lookup_name);

    struct generic_pm_domain *dev_to_genpd(struct device *dev)
    {
    diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
    index 2e0e06d..aedcec3 100644
    --- a/include/linux/pm_domain.h
    +++ b/include/linux/pm_domain.h
    @@ -150,6 +150,8 @@ extern int pm_genpd_name_poweron(const char *domain_name);

    extern struct dev_power_governor simple_qos_governor;
    extern struct dev_power_governor pm_domain_always_on_gov;
    +
    +extern struct generic_pm_domain *pm_genpd_lookup_name(const char *domain_name);
    #else

    static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev)
    @@ -221,6 +223,11 @@ static inline int pm_genpd_name_poweron(const char *domain_name)
    {
    return -ENOSYS;
    }
    +static inline
    +struct generic_pm_domain *pm_genpd_lookup_name(const char *domain_name)
    +{
    + return NULL;
    +}
    #define simple_qos_governor NULL
    #define pm_domain_always_on_gov NULL
    #endif
    --
    1.7.9.5


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