[alsa-devel] [PATCH 2/2] ASoC: fsi: bugfix: ensure dma is terminated

[Kuninori Morimoto]

FSI DMAEngine has to be stopped certainly at the start/stop time.
Without this patch, it will include noise on playback.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
this is v3.5 bugfix

 sound/soc/sh/fsi.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index 02ffe79..18c920f 100644
--- a/sound/soc/sh/fsi.c
+++ b/sound/soc/sh/fsi.c
@@ -1178,6 +1178,8 @@ static void fsi_dma_push_start_stop(struct fsi_priv *fsi, struct fsi_stream *io,
 
 	fsi_reg_mask_set(fsi, OUT_DMAC, DMA_ON, enable);
 
+	dmaengine_terminate_all(io->chan);
+
 	if (fsi_is_clk_master(fsi))
 		fsi_master_mask_set(master, CLK_RST, clk, (enable) ? clk : 0);
 }
-- 
1.7.5.4