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| author |   Peter Ujfalusi <peter.ujfalusi@ti.com> | 2018-11-08 09:29:57 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2018-11-13 09:50:19 -0800 |
| commit | be51c576e8495fd2cffbababad6de7e0a0a562ba (patch) | |
| tree | d70d1e182d86a0eb6db00a5afb61e0a81e0f4935 /sound/soc/omap/omap-mcbsp.c | |
| parent | ASoC: omap-mcbsp: Simplify the mcbsp_start/_stop function parameters (diff) | |
| download | linux-dev-be51c576e8495fd2cffbababad6de7e0a0a562ba.tar.xz linux-dev-be51c576e8495fd2cffbababad6de7e0a0a562ba.zip | |
ASoC: omap-mcbsp: Move out the FIFO check from set_threshold and get_delay
Check if the McBSP have FIFO in the omap_mcbsp_set_threshold() and
omap_mcbsp_dai_delay() delay function to skip calling the lower layer if
it is not needed.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Tested-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/omap/omap-mcbsp.c')
| -rw-r--r-- | sound/soc/omap/omap-mcbsp.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c index a18b7ecc3a2e..69a6b8ad6d42 100644 --- a/sound/soc/omap/omap-mcbsp.c +++ b/sound/soc/omap/omap-mcbsp.c @@ -71,6 +71,10 @@ static void omap_mcbsp_set_threshold(struct snd_pcm_substream *substream, struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); int words; + /* No need to proceed further if McBSP does not have FIFO */ + if (mcbsp->pdata->buffer_size == 0) + return; + /* * Configure McBSP threshold based on either: * packet_size, when the sDMA is in packet mode, or based on the @@ -233,6 +237,10 @@ static snd_pcm_sframes_t omap_mcbsp_dai_delay( u16 fifo_use; snd_pcm_sframes_t delay; + /* No need to proceed further if McBSP does not have FIFO */ + if (mcbsp->pdata->buffer_size == 0) + return 0; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) fifo_use = omap_mcbsp_get_tx_delay(mcbsp); else |