ASoC: imx: fix burstsize for DMA

BugLink: http://bugs.launchpad.net/bugs/761134

commit e1bb31b444668bc957c337d33803db7cb3330745 upstream.

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@pengutronix.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index b2ed764..aab7765 100644 (file)
--- 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);