[alsa-devel] [PATCH] ASoC: simple-card-utils: remove strict limitation of bit/frame master

[Kuninori Morimoto]

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

Current asoc_simple_card_parse_daifmt is keeping backward compatibility
for bitmaster/framemaster which didn't use phandle.
The keep compatibility, it is checking prefix length, but it is
too strict. let's loosen it. Otherwise, OF-graph base sound card
which doesn't have prefix can't detect daifmt.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 sound/soc/generic/simple-card-utils.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index b5047e2..f5a3e32 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -21,14 +21,13 @@ int asoc_simple_card_parse_daifmt(struct device *dev,
 {
 	struct device_node *bitclkmaster = NULL;
 	struct device_node *framemaster = NULL;
-	int prefix_len = prefix ? strlen(prefix) : 0;
 	unsigned int daifmt;
 
 	daifmt = snd_soc_of_parse_daifmt(node, prefix,
 					 &bitclkmaster, &framemaster);
 	daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
 
-	if (prefix_len && !bitclkmaster && !framemaster) {
+	if (!bitclkmaster && !framemaster) {
 		/*
 		 * No dai-link level and master setting was not found from
 		 * sound node level, revert back to legacy DT parsing and
-- 
1.9.1