PM / Domains: Operations related to cpuidle using domain names

Make it possible to use domain names in operations connecting cpuidle
to and disconnecting it from a PM domain.  This is useful on
platforms where PM domain objects are organized in such a way that
the names of the domains are easier to use than the addresses of
those objects.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index e44e1a8e837..12ad070c244 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1888,6 +1888,16 @@ int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state)
 }
 
 /**
+ * pm_genpd_name_attach_cpuidle - Find PM domain and connect cpuidle to it.
+ * @name: Name of the domain to connect to cpuidle.
+ * @state: cpuidle state this domain can manipulate.
+ */
+int pm_genpd_name_attach_cpuidle(const char *name, int state)
+{
+	return pm_genpd_attach_cpuidle(pm_genpd_lookup_name(name), state);
+}
+
+/**
  * pm_genpd_detach_cpuidle - Remove the cpuidle connection from a PM domain.
  * @genpd: PM domain to remove the cpuidle connection from.
  *
@@ -1925,6 +1935,15 @@ int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd)
 	return ret;
 }
 
+/**
+ * pm_genpd_name_detach_cpuidle - Find PM domain and disconnect cpuidle from it.
+ * @name: Name of the domain to disconnect cpuidle from.
+ */
+int pm_genpd_name_detach_cpuidle(const char *name)
+{
+	return pm_genpd_detach_cpuidle(pm_genpd_lookup_name(name));
+}
+
 /* Default device callbacks for generic PM domains. */
 
 /**