diff options
author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2014-02-03 07:51:50 -0500 |
---|---|---|
committer | Mark Brown <broonie@linaro.org> | 2014-02-03 13:26:59 -0500 |
commit | a7e46bd9a19c1e0058c7c8c0b4cc3e6cf101e12a (patch) | |
tree | 70e398d2812cfdc795a00dea557cb9be205a9526 /sound/soc/davinci/davinci-mcasp.c | |
parent | 135014adc6ae5a1ab0f2f20abaf81d1860138d38 (diff) |
ASoC: davinci-mcasp: Code cleanup in davinci_mcasp_hw_params()
Rearrange the code in the function for readability.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/davinci/davinci-mcasp.c')
-rw-r--r-- | sound/soc/davinci/davinci-mcasp.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c index 0518ff2d960c..63b1ecc97cb1 100644 --- a/sound/soc/davinci/davinci-mcasp.c +++ b/sound/soc/davinci/davinci-mcasp.c | |||
@@ -611,10 +611,8 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream, | |||
611 | u8 fifo_level; | 611 | u8 fifo_level; |
612 | u8 slots = mcasp->tdm_slots; | 612 | u8 slots = mcasp->tdm_slots; |
613 | u8 active_serializers; | 613 | u8 active_serializers; |
614 | int channels; | 614 | int channels = params_channels(params); |
615 | int ret; | 615 | int ret; |
616 | struct snd_interval *pcm_channels = hw_param_interval(params, | ||
617 | SNDRV_PCM_HW_PARAM_CHANNELS); | ||
618 | 616 | ||
619 | /* If mcasp is BCLK master we need to set BCLK divider */ | 617 | /* If mcasp is BCLK master we need to set BCLK divider */ |
620 | if (mcasp->bclk_master) { | 618 | if (mcasp->bclk_master) { |
@@ -627,19 +625,10 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream, | |||
627 | cpu_dai, 1, mcasp->sysclk_freq / bclk_freq); | 625 | cpu_dai, 1, mcasp->sysclk_freq / bclk_freq); |
628 | } | 626 | } |
629 | 627 | ||
630 | channels = pcm_channels->min; | ||
631 | |||
632 | active_serializers = (channels + slots - 1) / slots; | ||
633 | |||
634 | ret = mcasp_common_hw_param(mcasp, substream->stream, channels); | 628 | ret = mcasp_common_hw_param(mcasp, substream->stream, channels); |
635 | if (ret) | 629 | if (ret) |
636 | return ret; | 630 | return ret; |
637 | 631 | ||
638 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | ||
639 | fifo_level = mcasp->txnumevt * active_serializers; | ||
640 | else | ||
641 | fifo_level = mcasp->rxnumevt * active_serializers; | ||
642 | |||
643 | if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE) | 632 | if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE) |
644 | ret = mcasp_dit_hw_param(mcasp); | 633 | ret = mcasp_dit_hw_param(mcasp); |
645 | else | 634 | else |
@@ -680,6 +669,13 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream, | |||
680 | return -EINVAL; | 669 | return -EINVAL; |
681 | } | 670 | } |
682 | 671 | ||
672 | /* Calculate FIFO level */ | ||
673 | active_serializers = (channels + slots - 1) / slots; | ||
674 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | ||
675 | fifo_level = mcasp->txnumevt * active_serializers; | ||
676 | else | ||
677 | fifo_level = mcasp->rxnumevt * active_serializers; | ||
678 | |||
683 | if (mcasp->version == MCASP_VERSION_2 && !fifo_level) | 679 | if (mcasp->version == MCASP_VERSION_2 && !fifo_level) |
684 | dma_params->acnt = 4; | 680 | dma_params->acnt = 4; |
685 | else | 681 | else |