On Fri, Oct 17, 2014 at 02:14:53PM +0200, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > > Add new generic routines are provided for retrieving properties from > device description objects in the platform firmware in case there are > no struct device objects for them (either those objects have not been > created yet or they do not exist at all). > > The following functions are provided: > > fwnode_property_present() > fwnode_property_read_u8() > fwnode_property_read_u16() > fwnode_property_read_u32() > fwnode_property_read_u64() > fwnode_property_read_string() > fwnode_property_read_u8_array() > fwnode_property_read_u16_array() > fwnode_property_read_u32_array() > fwnode_property_read_u64_array() > fwnode_property_read_string_array() > > in analogy with the corresponding functions for struct device added > previously. For all of them, the first argument is a pointer to struct > fwnode_handle (new type) that allows a device description object > (depending on what platform firmware interface is in use) to be > obtained. > > Add a new macro device_for_each_child_node() for iterating over the > children of the device description object associated with a given > device and a new function device_get_child_node_count() returning the > number of a given device's child nodes. > > The interface covers both ACPI and Device Trees. > > Suggested-by: Grant Likely <grant.likely@xxxxxxxxxx> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
