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-rw-r--r--sound/soc/sh/rcar/core.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index d460d2a..027b043 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -302,7 +302,7 @@ int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional)
return pos;
}
-void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte)
+bool rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte)
{
io->byte_pos += byte;
@@ -319,8 +319,24 @@ void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte)
io->next_period_byte = io->byte_per_period;
}
- snd_pcm_period_elapsed(substream);
+ return true;
}
+
+ return false;
+}
+
+void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
+{
+ struct snd_pcm_substream *substream = io->substream;
+
+ /*
+ * this function should be called...
+ *
+ * - if rsnd_dai_pointer_update() returns true
+ * - without spin lock
+ */
+
+ snd_pcm_period_elapsed(substream);
}
static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
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