From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
DMA handler had needed to calculate pointer before, but it doesn't
need now. Thus, we can remove unnecessary spin lock from DMAC handler.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
sound/soc/sh/rcar/dma.c | 18 ------------------
1 file changed, 18 deletions(-)
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index 4d750bdf..41de234 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -71,25 +71,7 @@ struct rsnd_dma_ctrl {
static void __rsnd_dmaen_complete(struct rsnd_mod *mod,
struct rsnd_dai_stream *io)
{
- struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
- bool elapsed = false;
- unsigned long flags;
-
- /*
- * Renesas sound Gen1 needs 1 DMAC,
- * Gen2 needs 2 DMAC.
- * In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri.
- * But, Audio-DMAC-peri-peri doesn't have interrupt,
- * and this driver is assuming that here.
- */
- spin_lock_irqsave(&priv->lock, flags);
-
if (rsnd_io_is_working(io))
- elapsed = true;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (elapsed)
rsnd_dai_period_elapsed(io);
}
--
1.9.1
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