From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
simple-card already has asoc_simple_card_parse_dai(), but graph base parsing needs graph specific version of it.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/simple_card_utils.h | 10 +++++++ sound/soc/generic/simple-card-utils.c | 50 +++++++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+)
diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h index fd641255..4b58954 100644 --- a/include/sound/simple_card_utils.h +++ b/include/sound/simple_card_utils.h @@ -59,6 +59,16 @@ int asoc_simple_card_parse_dai(struct device_node *node, const char *cells_name, int *is_single_links);
+#define asoc_simple_card_parse_graph_cpu(ep, dai_link) \ + asoc_simple_card_parse_graph_dai(ep, &dai_link->cpu_of_node, \ + &dai_link->cpu_dai_name) +#define asoc_simple_card_parse_graph_codec(ep, dai_link) \ + asoc_simple_card_parse_graph_dai(ep, &dai_link->codec_of_node, \ + &dai_link->codec_dai_name) +int asoc_simple_card_parse_graph_dai(struct device_node *ep, + struct device_node **endpoint_np, + const char **dai_name); + int asoc_simple_card_init_dai(struct snd_soc_dai *dai, struct asoc_simple_dai *simple_dai);
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index e5b80f5..373ada3 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -10,6 +10,7 @@ #include <linux/clk.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_graph.h> #include <sound/simple_card_utils.h>
int asoc_simple_card_parse_daifmt(struct device *dev, @@ -164,6 +165,55 @@ int asoc_simple_card_parse_dai(struct device_node *node, } EXPORT_SYMBOL_GPL(asoc_simple_card_parse_dai);
+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, *port, *endpoint; + int i, id; + + if (!ep) + return 0; + + /* + * of_graph_get_port_parent() will call + * of_node_put(). So, call of_node_get() here + */ + of_node_get(ep); + node = of_graph_get_port_parent(ep); + + i = 0; + id = -1; + for_each_of_port(node, port) { + for_each_of_endpoint_in_port(port, endpoint) { + if (endpoint == ep) + id = i; + i++; + } + } + if (id < 0) + return -ENODEV; + + /* Get dai->name */ + if (dai_name) { + struct of_phandle_args args; + int ret; + + args.np = node; + args.args[0] = id; + args.args_count = (i > 1); + + ret = snd_soc_get_dai_name(&args, dai_name); + if (ret < 0) + return ret; + } + + *dai_of_node = node; + + return 0; +} +EXPORT_SYMBOL_GPL(asoc_simple_card_parse_graph_dai); + int asoc_simple_card_init_dai(struct snd_soc_dai *dai, struct asoc_simple_dai *simple_dai) {