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authorUlf Hansson <ulf.hansson@linaro.org>2018-06-29 14:04:31 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-07-09 13:11:02 +0300
commit5d6be70add65e3f236642ab0029e356261617cd0 (patch)
treeb385e69e0c3ea5ceb5f43a8c4579fab80e69c32c /include/linux/pm_domain.h
parent79a5c45199cd942047b1cf7bb50ff0699c2a3af0 (diff)
downloadlinux-5d6be70add65e3f236642ab0029e356261617cd0.tar.xz
PM / Domains: Introduce option to attach a device by name to genpd
For the multiple PM domain case, let's introduce a new function called genpd_dev_pm_attach_by_name(). This allows a device to be associated with its PM domain through genpd, by using a name based lookup. Note that, genpd_dev_pm_attach_by_name() shall only be called by the driver core / PM core, similar to how the existing dev_pm_domain_attach_by_id() makes use of genpd_dev_pm_attach_by_id(). However, this is implemented by following changes on top. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/pm_domain.h')
-rw-r--r--include/linux/pm_domain.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index cb8d84090cfb..03e14a38462d 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -239,6 +239,8 @@ unsigned int of_genpd_opp_to_performance_state(struct device *dev,
int genpd_dev_pm_attach(struct device *dev);
struct device *genpd_dev_pm_attach_by_id(struct device *dev,
unsigned int index);
+struct device *genpd_dev_pm_attach_by_name(struct device *dev,
+ char *name);
#else /* !CONFIG_PM_GENERIC_DOMAINS_OF */
static inline int of_genpd_add_provider_simple(struct device_node *np,
struct generic_pm_domain *genpd)
@@ -290,6 +292,12 @@ static inline struct device *genpd_dev_pm_attach_by_id(struct device *dev,
return NULL;
}
+static inline struct device *genpd_dev_pm_attach_by_name(struct device *dev,
+ char *name)
+{
+ return NULL;
+}
+
static inline
struct generic_pm_domain *of_genpd_remove_last(struct device_node *np)
{