blob: 59932b9a434b30059fba3c81b07257cc2d059cde [file] [log] [blame]
From 2bf86be33f364709618828a27d000ebd21e444de Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 29 Nov 2017 03:08:35 +0000
Subject: [PATCH 0562/1795] ASoC: rsnd: dma.c: spin lock is no longer needed in
IRQ handler
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>
Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit 65bedda1feec4f57e1322a200853cc29079b01c6)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
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 4d750bdf8e24..41de23417c4a 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -71,25 +71,7 @@ static struct rsnd_mod mem = {
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);
}
--
2.19.0