From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
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@renesas.com --- 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); }