[PATCH v2 2/4] ASoC: Fix burstsize and DSP_B format problems in imx-ssi.
Javier Martin
javier.martin at vista-silicon.com
Tue Mar 1 09:02:06 EST 2011
When choosing IMX_DMA flag, burtsizes are set to its default
value (0) which leads to driver malfunction. Change them to 4.
DSP_B interface needs additional flag to match DSP_B formats
as described in several codecs as wm8741 and aic3205.
Signed-off-by: Javier Martin <javier.martin at vista-silicon.com>
---
sound/soc/imx/imx-ssi.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/sound/soc/imx/imx-ssi.c b/sound/soc/imx/imx-ssi.c
index 390b6ff..971d3db 100644
--- a/sound/soc/imx/imx-ssi.c
+++ b/sound/soc/imx/imx-ssi.c
@@ -108,7 +108,7 @@ static int imx_ssi_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt)
break;
case SND_SOC_DAIFMT_DSP_B:
/* data on rising edge of bclk, frame high with data */
- strcr |= SSI_STCR_TFSL;
+ strcr |= SSI_STCR_TFSL | SSI_STCR_TXBIT0;
break;
case SND_SOC_DAIFMT_DSP_A:
/* data on rising edge of bclk, frame high 1clk before data */
@@ -656,6 +656,9 @@ static int imx_ssi_probe(struct platform_device *pdev)
ssi->dma_params_rx.dma_addr = res->start + SSI_SRX0;
ssi->dma_params_tx.dma_addr = res->start + SSI_STX0;
+ ssi->dma_params_tx.burstsize = 4;
+ ssi->dma_params_rx.burstsize = 4;
+
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx0");
if (res)
ssi->dma_params_tx.dma = res->start;
--
1.7.0.4
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