From b6f3fc005a2c8b425d7a0973b43bef05890bf479 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 30 Nov 2018 02:04:13 +0000 Subject: [PATCH] ASoC: simple-card-utils: fixup asoc_simple_card_get_dai_id() counting asoc_simple_card_get_dai_id() returns DAI ID, but it is based on DT node's "endpoint" position. Almost all cases 1 port has 1 endpoint, thus, it was no problem. But in reality, port : endpoint = 1 : N, thus, counting endpoint is BUG, it should based on "port" ID. This patch fixup it. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/generic/simple-card-utils.c | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index c69ce1e..6a31d07 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -269,35 +269,19 @@ EXPORT_SYMBOL_GPL(asoc_simple_card_parse_dai); static int asoc_simple_card_get_dai_id(struct device_node *ep) { - struct device_node *node; - struct device_node *endpoint; - int i, id; + struct of_endpoint info; 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; + of_graph_parse_endpoint(ep, &info); + return info.port; } int asoc_simple_card_parse_graph_dai(struct device_node *ep, -- 2.7.4