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authorUlf Hansson <ulf.hansson@linaro.org>2018-06-29 13:04:32 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-07-09 12:11:02 +0200
commit27dceb81f445c58b1d10d27d26eaf4ac2e9e0b00 (patch)
tree9f66e6b98015b5ebf2e1939029907e3286861151 /include/linux/pm_domain.h
parent5d6be70add65e3f236642ab0029e356261617cd0 (diff)
PM / Domains: Introduce dev_pm_domain_attach_by_name()
For the multiple PM domain case, let's introduce a new API called dev_pm_domain_attach_by_name(). This allows a consumer driver to associate its device with one of its PM domains, by using a name based lookup. Do note that, currently it's only genpd that supports multiple PM domains per device, but dev_pm_domain_attach_by_name() can easily by extended to cover other PM domain types, if/when needed. 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.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 03e14a38462d..776c546d581a 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -309,6 +309,8 @@ struct generic_pm_domain *of_genpd_remove_last(struct device_node *np)
int dev_pm_domain_attach(struct device *dev, bool power_on);
struct device *dev_pm_domain_attach_by_id(struct device *dev,
unsigned int index);
+struct device *dev_pm_domain_attach_by_name(struct device *dev,
+ char *name);
void dev_pm_domain_detach(struct device *dev, bool power_off);
void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd);
#else
@@ -321,6 +323,11 @@ static inline struct device *dev_pm_domain_attach_by_id(struct device *dev,
{
return NULL;
}
+static inline struct device *dev_pm_domain_attach_by_name(struct device *dev,
+ char *name)
+{
+ return NULL;
+}
static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {}
static inline void dev_pm_domain_set(struct device *dev,
struct dev_pm_domain *pd) {}