Hi Morioto-san,
On 2018/12/14 11:29, Kuninori Morimoto wrote:
From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
Tested-by: Tony Lindgren <tony@xxxxxxxxxxx>
Sorry for late reply.
It works fine with our devicetree that doesn't have 'reg' properties.
Tested-by: Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>
Thank you,
---
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,
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