static int asoc_simple_card_get_dai_id(struct device_node *ep)
{
struct device_node *node;
struct device_node *endpoint;
int i, id;
int ret;
ret = snd_soc_get_dai_id(ep);
if (ret != -ENOTSUPP)
return ret;
node = of_graph_get_port_parent(ep);
/*
* Non HDMI sound case, counting port/endpoint on its DT
* is enough. Let's count it.
*/
i = 0;
id = -1;
for_each_endpoint_of_node(node, endpoint) {
if (endpoint == ep)
id = i;
i++;
}
of_node_put(node);
if (id < 0)
return -ENODEV;
return id;
}
int asoc_simple_card_parse_graph_dai(struct device_node *ep,
struct device_node **dai_of_node,
const char **dai_name)
{
struct device_node *node;
struct of_phandle_args args;
int ret;
if (!ep)
return 0;
if (!dai_name)
return 0;
node = of_graph_get_port_parent(ep);
/* Get dai->name */
args.np = node;
args.args[0] = asoc_simple_card_get_dai_id(ep);
args.args_count = (of_graph_get_endpoint_count(node) > 1);
ret = snd_soc_get_dai_name(&args, dai_name);
if (ret < 0)
return ret;
*dai_of_node = node;
return 0;
}
static struct device_node *of_coresight_get_port_parent(struct device_node *ep)
{
struct device_node *parent = of_graph_get_port_parent(ep);
/*
* Skip one-level up to the real device node, if we
* are using the new bindings.
*/
if (of_node_name_eq(parent, "in-ports") ||
of_node_name_eq(parent, "out-ports"))
parent = of_get_next_parent(parent);
return parent;
}
