commit b6f3fc005a2c8 ("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 b6f3fc005a2c8 ("ASoC: simple-card-utils: fixup asoc_simple_card_get_dai_id() counting") Reported-by: Tony Lindgren tony@atomide.com Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com ---
Tony
Can you test this patch ? It can keep compatibility, I think.
Mark
I added [RFC] on this patch. If this patch was OK by Tony's test, I will re-post it as v3 patch-set.
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 17d8aee..b807a47 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,