diff options
| author | Kuninori Morimoto | 2018-12-20 10:45:42 +0900 |
|---|---|---|
| committer | Mark Brown | 2019-01-03 16:34:14 +0000 |
| commit | a0c426fe143328760c9fd565cd203a37a7b4fde8 (patch) | |
| tree | 60e14d7b12734b3c8116dbf9daa97b7df9442bd5 /sound | |
| parent | 4e88068ed0888549acd1cbb2f6e271b007051203 (diff) | |
ASoC: simple-card-utils: check "reg" property on asoc_simple_card_get_dai_id()
We will get DAI ID from "reg" property if it has on DT, otherwise get
it by counting port/endpoint.
But in below case, we need to get DAI ID = 0 via port reg = <0>, but
current implementation returns ID = 1, because it can't judge ID = 0 was
from "non reg" or "reg = <0>".
Thus, it will count port/endpoint number as "non reg" case.
of_graph_parse_endpoint() implementation itself is not a problem,
but because asoc_simple_card_get_dai_id() need to count port/endpoint
number when "non reg" case, it need to know ID = 0 was from
"non reg" or "reg = <0>".
This patch fix this issue.
port {
reg = <0>;
xxxx: endpoint@0 {
};
=> xxxx: endpoint@1 {
};
};
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/generic/simple-card-utils.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index b807a47515eb..336895f7fd1e 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -283,12 +283,20 @@ static int asoc_simple_card_get_dai_id(struct device_node *ep) /* use endpoint/port reg if exist */ ret = of_graph_parse_endpoint(ep, &info); if (ret == 0) { - if (info.id) + /* + * Because it will count port/endpoint if it doesn't have "reg". + * But, we can't judge whether it has "no reg", or "reg = <0>" + * only of_graph_parse_endpoint(). + * We need to check "reg" property + */ + if (of_get_property(ep, "reg", NULL)) return info.id; - if (info.port) + + node = of_get_parent(ep); + of_node_put(node); + if (of_get_property(node, "reg", NULL)) return info.port; } - node = of_graph_get_port_parent(ep); /* |