[alsa-devel] [PATCH 4/4] ASoC: davinci-mcasp: Code cleanup in davinci_mcasp_hw_params()
Peter Ujfalusi
peter.ujfalusi at ti.com
Thu Jan 30 14:15:25 CET 2014
Rearrange the code in the function for readability.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi at ti.com>
---
sound/soc/davinci/davinci-mcasp.c | 19 ++++++++-----------
1 file changed, 8 insertions(+), 11 deletions(-)
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index c1c1ac8945d4..48079dbad767 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -598,23 +598,13 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
u8 fifo_level;
u8 slots = mcasp->tdm_slots;
u8 active_serializers;
- int channels;
+ int channels = params_channels(params);
int ret;
- struct snd_interval *pcm_channels = hw_param_interval(params,
- SNDRV_PCM_HW_PARAM_CHANNELS);
- channels = pcm_channels->min;
-
- active_serializers = (channels + slots - 1) / slots;
ret = mcasp_common_hw_param(mcasp, substream->stream, channels);
if (ret)
return ret;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- fifo_level = mcasp->txnumevt * active_serializers;
- else
- fifo_level = mcasp->rxnumevt * active_serializers;
-
if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE)
ret = mcasp_dit_hw_param(mcasp);
else
@@ -655,6 +645,13 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
+ /* Calculate FIFO level */
+ active_serializers = (channels + slots - 1) / slots;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ fifo_level = mcasp->txnumevt * active_serializers;
+ else
+ fifo_level = mcasp->rxnumevt * active_serializers;
+
if (mcasp->version == MCASP_VERSION_2 && !fifo_level)
dma_params->acnt = 4;
else
--
1.8.5.3
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