From: Eduardo Valentin <eduardo.valentin@nokia.com>
Date: Thu, 20 Aug 2009 13:18:21 +0000 (+0300)
Subject: ASoC: OMAP: Enable DMA burst mode
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9599d485cb0b5ea093414654d723f3ab03c95038;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

ASoC: OMAP: Enable DMA burst mode

Improve DMA transfers by enabling Burst transaction.

Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 12e14c01068e..7cae7c418083 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -195,6 +195,9 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
 	else
 		omap_enable_dma_irq(prtd->dma_ch, OMAP_DMA_FRAME_IRQ);
 
+	omap_set_dma_src_burst_mode(prtd->dma_ch, OMAP_DMA_DATA_BURST_16);
+	omap_set_dma_dest_burst_mode(prtd->dma_ch, OMAP_DMA_DATA_BURST_16);
+
 	return 0;
 }