Implement power_domain_get_by_name() convenience function which parses DT property 'power-domain-names' and looks up power domain by matching name.
Signed-off-by: Marek Vasut marex@denx.de Cc: Patrick Delaunay patrick.delaunay@foss.st.com Cc: Simon Glass sjg@chromium.org --- drivers/power/domain/power-domain-uclass.c | 14 ++++++++++++++ include/power-domain.h | 21 +++++++++++++++++++++ 2 files changed, 35 insertions(+)
diff --git a/drivers/power/domain/power-domain-uclass.c b/drivers/power/domain/power-domain-uclass.c index 0c5823ceddf..74c33d4e2e0 100644 --- a/drivers/power/domain/power-domain-uclass.c +++ b/drivers/power/domain/power-domain-uclass.c @@ -80,6 +80,20 @@ int power_domain_get_by_index(struct udevice *dev, return 0; }
+int power_domain_get_by_name(struct udevice *dev, + struct power_domain *power_domain, const char *name) +{ + int index; + + index = dev_read_stringlist_search(dev, "power-domain-names", name); + if (index < 0) { + debug("fdt_stringlist_search() failed: %d\n", index); + return index; + } + + return power_domain_get_by_index(dev, power_domain, index); +} + int power_domain_get(struct udevice *dev, struct power_domain *power_domain) { return power_domain_get_by_index(dev, power_domain, 0); diff --git a/include/power-domain.h b/include/power-domain.h index 113276b5119..2ff6c77cd76 100644 --- a/include/power-domain.h +++ b/include/power-domain.h @@ -107,6 +107,27 @@ int power_domain_get_by_index(struct udevice *dev, } #endif
+/** + * power_domain_get_by_name - Get the named power domain for a device. + * + * @dev: The client device. + * @power_domain: A pointer to a power domain struct to initialize. + * @name: Power domain name to be powered on. + * + * Return: 0 if OK, or a negative error code. + */ +#if CONFIG_IS_ENABLED(POWER_DOMAIN) +int power_domain_get_by_name(struct udevice *dev, + struct power_domain *power_domain, const char *name); +#else +static inline +int power_domain_get_by_name(struct udevice *dev, + struct power_domain *power_domain, const char *name) +{ + return -ENOSYS; +} +#endif + /** * power_domain_free - Free a previously requested power domain. *