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;
}
/**
* 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;
}