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ASoC: simple-card-utils: remove strict limitation of bit/frame master 

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@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2017-05-25 01:51:31 +00:00 committed by Mark Brown
parent 73b17f1a65
commit 155b8f3aa6
1 changed files with 1 additions and 2 deletions
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3
sound/soc/generic/simple-card-utils.c
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@ -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