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ASoC: DaVinci: McASP FIFO related updates

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The DMA params for McASP with FIFO has been updated so that it works for
various FIFO levels. A member- 'fifo_level' has been added to the DMA
params data structure. The fifo_level can be adjusted by the tx[rx]_numevt
platform data. This is relevant only for DA8xx/OMAP-L1xx platforms. This
implementation has been tested for numevt values 1, 2, 4, 8.

Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Chaithrika U S
2009-09-30 17:32:27 -04:00
committed by Mark Brown
parent be2500b835
commit 4fa9c1a595
4 changed files with 28 additions and 13 deletions
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2
sound/soc/davinci/davinci-i2s.c
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@@ -397,6 +397,8 @@ static int davinci_i2s_hw_params(struct snd_pcm_substream *substream,
}
dma_params->acnt = dma_params->data_type;
dma_params->fifo_level = 0;
rcr |= DAVINCI_MCBSP_RCR_RFRLEN1(1);
xcr |= DAVINCI_MCBSP_XCR_XFRLEN1(1);