From 67de5ff5861e9173ba581bf6983407e84926646b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 14 Dec 2018 11:29:42 +0900 Subject: [PATCH] ASoC: simple-card-utils: fixup asoc_simple_card_get_dai_id() ID method commit 41b268dc3492a ("ASoC: simple-card-utils: fixup asoc_simple_card_get_dai_id() counting") fixuped getting DAI ID method. It will get DAI ID from OF graph "port", but, we want to consider about "endpoint", too. And, we also want to keep compatibility. This patch fixup it as if (driver has specified DAI ID) use it as DAI ID else if (OF graph endpoint has reg) use it as DAI ID else if (OF graph port has reg) use it as DAI ID else use endpoint count as DAI ID Fixes: commit 41b268dc3492a ("ASoC: simple-card-utils: fixup asoc_simple_card_get_dai_id() counting") Reported-by: Tony Lindgren Signed-off-by: Kuninori Morimoto Tested-by: Tony Lindgren Signed-off-by: Mark Brown --- sound/soc/generic/simple-card-utils.c | 32 +++++++++++++++++++++++---- 1 file changed, 28 insertions(+), 4 deletions(-) diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 17d8aee438355..b807a47515ebc 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -269,22 +269,46 @@ 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; struct of_endpoint info; + int i, id; int ret; + /* use driver specified DAI ID if exist */ ret = snd_soc_get_dai_id(ep); if (ret != -ENOTSUPP) return ret; + /* use endpoint/port reg if exist */ + ret = of_graph_parse_endpoint(ep, &info); + if (ret == 0) { + if (info.id) + return info.id; + if (info.port) + return info.port; + } + + node = of_graph_get_port_parent(ep); + /* * Non HDMI sound case, counting port/endpoint on its DT * is enough. Let's count it. */ - ret = of_graph_parse_endpoint(ep, &info); - if (ret) - return -ENXIO; + 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 info.port; + return id; } int asoc_simple_card_parse_graph_dai(struct device_node *ep, -- 2.39.5