diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/domain.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 9e8484189034..79bdca70a81a 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2374,6 +2374,30 @@ struct device *genpd_dev_pm_attach_by_id(struct device *dev, } EXPORT_SYMBOL_GPL(genpd_dev_pm_attach_by_id); +/** + * genpd_dev_pm_attach_by_name - Associate a device with one of its PM domains. + * @dev: The device used to lookup the PM domain. + * @name: The name of the PM domain. + * + * Parse device's OF node to find a PM domain specifier using the + * power-domain-names DT property. For further description see + * genpd_dev_pm_attach_by_id(). + */ +struct device *genpd_dev_pm_attach_by_name(struct device *dev, char *name) +{ + int index; + + if (!dev->of_node) + return NULL; + + index = of_property_match_string(dev->of_node, "power-domain-names", + name); + if (index < 0) + return NULL; + + return genpd_dev_pm_attach_by_id(dev, index); +} + static const struct of_device_id idle_state_match[] = { { .compatible = "domain-idle-state", }, { } |