[alsa-devel] [PATCH v6 5/9] ASoC: soc-core: enable "dai-format" on snd_soc_of_parse_daifmt()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

Current snd_soc_of_parse_daifmt() detects [prefix]format, but
"format" was unclear in some case. This patch checks "dai-format"
first, and try to check "[prefix]format" if "dai-format" was not
exist.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
v5 -> v6

 - "dai-format" on Subject
 - don't allow [prefix] on dai-format

 sound/soc/soc-core.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9ee4d4a..4a20c30 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3950,11 +3950,15 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
 		prefix = "";
 
 	/*
-	 * check "[prefix]format = xxx"
+	 * check "dai-format = xxx"
+	 * or    "[prefix]format = xxx"
 	 * SND_SOC_DAIFMT_FORMAT_MASK area
 	 */
-	snprintf(prop, sizeof(prop), "%sformat", prefix);
-	ret = of_property_read_string(np, prop, &str);
+	ret = of_property_read_string(np, "dai-format", &str);
+	if (ret < 0) {
+		snprintf(prop, sizeof(prop), "%sformat", prefix);
+		ret = of_property_read_string(np, prop, &str);
+	}
 	if (ret == 0) {
 		for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) {
 			if (strcmp(str, of_fmt_table[i].name) == 0) {
-- 
1.9.1