diff options
Diffstat (limited to 'sound/soc/pxa/pxa2xx-pcm.c')
| -rw-r--r-- | sound/soc/pxa/pxa2xx-pcm.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sound/soc/pxa/pxa2xx-pcm.c b/sound/soc/pxa/pxa2xx-pcm.c index ff32f892287..35e8fa3a469 100644 --- a/sound/soc/pxa/pxa2xx-pcm.c +++ b/sound/soc/pxa/pxa2xx-pcm.c @@ -76,13 +76,18 @@ static int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_runtime *runtime = substream->runtime; struct pxa2xx_runtime_data *prtd = runtime->private_data; struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct pxa2xx_pcm_dma_params *dma = rtd->cpu_dai->dma_data; + struct pxa2xx_pcm_dma_params *dma = rtd->dai->cpu_dai->dma_data; size_t totsize = params_buffer_bytes(params); size_t period = params_period_bytes(params); pxa_dma_desc *dma_desc; dma_addr_t dma_buff_phys, next_desc_phys; int ret; + /* return if this is a bufferless transfer e.g. + * codec <--> BT codec or GSM modem -- lg FIXME */ + if (!dma) + return 0; + /* this may get called several times by oss emulation * with different params */ if (prtd->params == NULL) { @@ -227,6 +232,10 @@ static int pxa2xx_pcm_open(struct snd_pcm_substream *substream) if (ret) goto out; + ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) + goto out; + prtd = kzalloc(sizeof(struct pxa2xx_runtime_data), GFP_KERNEL); if (prtd == NULL) { ret = -ENOMEM; |