linux-kernel - [PATCH 2/3] ASoC: imx: fix burstsize for DMA

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Message-Id: <1301068306-11997-3-git-send-email-w.sang@pengutronix.de>
Date:	Fri, 25 Mar 2011 16:51:45 +0100
From:	Wolfram Sang <w.sang@...gutronix.de>
To:	alsa-devel@...a-project.org
Cc:	Sascha Hauer <s.hauer@...gutronix.de>,
	Wolfram Sang <w.sang@...gutronix.de>,
	Liam Girdwood <lrg@...mlogic.co.uk> (supporter:SOUND - SOC LAYER...
	,commit_signer:6/12=50%),
	Mark Brown <broonie@...nsource.wolfsonmicro.com> (supporter:SOUND -
	SOC LAYER...,commit_signer:6/12=50%),
	Jaroslav Kysela <perex@...ex.cz> (maintainer:SOUND),
	Takashi Iwai <tiwai@...e.de> (maintainer:SOUND),
	Timur Tabi <timur@...escale.com> (commit_signer:2/12=17%),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 2/3] ASoC: imx: fix burstsize for DMA

SSI counts in words, the DMA engine in bytes. (Wrong) factor got removed
in bf974a0 (ASoC i.MX: switch to new DMA api).

Signed-off-by: Wolfram Sang <w.sang@...gutronix.de>
---
 sound/soc/imx/imx-pcm-dma-mx2.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index b2ed764..aab7765 100644
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -110,12 +110,12 @@ static int imx_ssi_dma_alloc(struct snd_pcm_substream *substream,
 		slave_config.direction = DMA_TO_DEVICE;
 		slave_config.dst_addr = dma_params->dma_addr;
 		slave_config.dst_addr_width = buswidth;
-		slave_config.dst_maxburst = dma_params->burstsize;
+		slave_config.dst_maxburst = dma_params->burstsize * buswidth;
 	} else {
 		slave_config.direction = DMA_FROM_DEVICE;
 		slave_config.src_addr = dma_params->dma_addr;
 		slave_config.src_addr_width = buswidth;
-		slave_config.src_maxburst = dma_params->burstsize;
+		slave_config.src_maxburst = dma_params->burstsize * buswidth;
 	}
 
 	ret = dmaengine_slave_config(iprtd->dma_chan, &slave_config);
-- 
1.7.2.5

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