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-rw-r--r--drivers/base/power/domain.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 5f4606f13be6..ac06d0280b42 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1465,6 +1465,33 @@ int __pm_genpd_of_add_device(struct device_node *genpd_node, struct device *dev,
return __pm_genpd_add_device(genpd, dev, td);
}
+
+/**
+ * __pm_genpd_name_add_device - Find I/O PM domain and add a device to it.
+ * @domain_name: Name of the PM domain to add the device to.
+ * @dev: Device to be added.
+ * @td: Set of PM QoS timing parameters to attach to the device.
+ */
+int __pm_genpd_name_add_device(const char *domain_name, struct device *dev,
+ struct gpd_timing_data *td)
+{
+ struct generic_pm_domain *genpd = NULL, *gpd;
+
+ if (IS_ERR_OR_NULL(domain_name) || IS_ERR_OR_NULL(dev))
+ return -EINVAL;
+
+ mutex_lock(&gpd_list_lock);
+ list_for_each_entry(gpd, &gpd_list, gpd_list_node) {
+ if (!strcmp(gpd->name, domain_name)) {
+ genpd = gpd;
+ break;
+ }
+ }
+ mutex_unlock(&gpd_list_lock);
+
+ return __pm_genpd_add_device(genpd, dev, td);
+}
+
/**
* pm_genpd_remove_device - Remove a device from an I/O PM domain.
* @genpd: PM domain to remove the device from.