diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2009-11-07 01:34:31 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-11-07 12:40:09 +0000 |
| commit | 1d8222e8df07ce4f86fb7fa80b02bdee03b57985 (patch) | |
| tree | 5a82aa6b88862e0c08aa001876a5f4a1615388da /sound/soc | |
| parent | c4878274750ae0bb90c351a737ac6cdcb608e546 (diff) | |
| download | linux-1d8222e8df07ce4f86fb7fa80b02bdee03b57985.tar.gz linux-1d8222e8df07ce4f86fb7fa80b02bdee03b57985.tar.bz2 linux-1d8222e8df07ce4f86fb7fa80b02bdee03b57985.zip | |
ASoC/mpc5200: add to_psc_dma_stream() helper
Move the resolving of the psc_dma_stream pointer to a helper function
to reduce duplicate code
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/fsl/mpc5200_dma.c | 7 | ||||
| -rw-r--r-- | sound/soc/fsl/mpc5200_dma.h | 9 |
2 files changed, 10 insertions, 6 deletions
diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c index 658e3fa14663..9c88e15ce693 100644 --- a/sound/soc/fsl/mpc5200_dma.c +++ b/sound/soc/fsl/mpc5200_dma.c @@ -133,17 +133,12 @@ static int psc_dma_trigger(struct snd_pcm_substream *substream, int cmd) struct snd_soc_pcm_runtime *rtd = substream->private_data; struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data; struct snd_pcm_runtime *runtime = substream->runtime; - struct psc_dma_stream *s; + struct psc_dma_stream *s = to_psc_dma_stream(substream, psc_dma); struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs; u16 imr; unsigned long flags; int i; - if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) - s = &psc_dma->capture; - else - s = &psc_dma->playback; - switch (cmd) { case SNDRV_PCM_TRIGGER_START: dev_dbg(psc_dma->dev, "START: stream=%i fbits=%u ps=%u #p=%u\n", diff --git a/sound/soc/fsl/mpc5200_dma.h b/sound/soc/fsl/mpc5200_dma.h index c6f29e4d093c..956d6a5f5a8c 100644 --- a/sound/soc/fsl/mpc5200_dma.h +++ b/sound/soc/fsl/mpc5200_dma.h @@ -68,6 +68,15 @@ struct psc_dma { } stats; }; +/* Utility for retrieving psc_dma_stream structure from a substream */ +inline struct psc_dma_stream * +to_psc_dma_stream(struct snd_pcm_substream *substream, struct psc_dma *psc_dma) +{ + if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) + return &psc_dma->capture; + return &psc_dma->playback; +} + int mpc5200_audio_dma_create(struct of_device *op); int mpc5200_audio_dma_destroy(struct of_device *op); |