Пример #1
0
static int __fwnode_property_read_string(struct fwnode_handle *fwnode,
					 const char *propname, const char **val)
{
	if (is_of_node(fwnode))
		return of_property_read_string(to_of_node(fwnode), propname, val);
	else if (is_acpi_node(fwnode))
		return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
					   val, 1);
	else if (is_pset_node(fwnode))
		return pset_prop_read_string(to_pset_node(fwnode), propname, val);
	return -ENXIO;
}
Пример #2
0
/**
 * fwnode_property_read_string_array - return string array property of a node
 * @fwnode: Firmware node to get the property of
 * @propname: Name of the property
 * @val: The values are stored here or %NULL to return the number of values
 * @nval: Size of the @val array
 *
 * Read an string list property @propname from the given firmware node and store
 * them to @val if found.
 *
 * Return: number of values if @val was %NULL,
 *         %0 if the property was found (success),
 *	   %-EINVAL if given arguments are not valid,
 *	   %-ENODATA if the property does not have a value,
 *	   %-EPROTO if the property is not an array of strings,
 *	   %-EOVERFLOW if the size of the property is not as expected,
 *	   %-ENXIO if no suitable firmware interface is present.
 */
int fwnode_property_read_string_array(struct fwnode_handle *fwnode,
				      const char *propname, const char **val,
				      size_t nval)
{
	if (is_of_node(fwnode))
		return val ?
			of_property_read_string_array(to_of_node(fwnode),
						      propname, val, nval) :
			of_property_count_strings(to_of_node(fwnode), propname);
	else if (is_acpi_node(fwnode))
		return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
					   val, nval);
	else if (is_pset(fwnode))
		return pset_prop_read_array(to_pset(fwnode), propname,
					    DEV_PROP_STRING, val, nval);
	return -ENXIO;
}