diff options
Diffstat (limited to 'sound/soc/tegra/tegra_pcm.c')
| -rw-r--r-- | sound/soc/tegra/tegra_pcm.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c index 1b4b949841aa..f471fafff2ac 100644 --- a/sound/soc/tegra/tegra_pcm.c +++ b/sound/soc/tegra/tegra_pcm.c @@ -52,8 +52,8 @@ static const struct snd_pcm_hardware tegra_pcm_hardware = { .channels_min = 1, .channels_max = 2, .period_bytes_min = 128, - .period_bytes_max = PAGE_SIZE, - .periods_min = 2, + .period_bytes_max = PAGE_SIZE * 2, + .periods_min = 1, .periods_max = 8, .buffer_bytes_max = PAGE_SIZE * 8, .fifo_size = 4, @@ -272,6 +272,15 @@ int tegra_pcm_trigger(struct snd_pcm_substream *substream, int cmd) prtd->dma_pos_end = frames_to_bytes(runtime, runtime->periods * runtime->period_size); prtd->period_index = 0; prtd->dma_req_idx = 0; + if (prtd->disable_intr) { + prtd->dma_req_count = 1; + prtd->dma_req[0].complete = NULL; + } else if (!prtd->dma_req[0].complete) { + prtd->dma_req[0].complete = dma_complete_callback; + prtd->dma_req_count = + (MAX_DMA_REQ_COUNT <= runtime->periods) ? + MAX_DMA_REQ_COUNT : runtime->periods; + } /* Fall-through */ case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: @@ -289,8 +298,9 @@ int tegra_pcm_trigger(struct snd_pcm_substream *substream, int cmd) spin_unlock_irqrestore(&prtd->lock, flags); tegra_dma_cancel(prtd->dma_chan); for (i = 0; i < prtd->dma_req_count; i++) { - if (prtd->dma_req[i].status == - -TEGRA_DMA_REQ_ERROR_ABORTED) + if (prtd->dma_req[i].complete && + (prtd->dma_req[i].status == + -TEGRA_DMA_REQ_ERROR_ABORTED)) prtd->dma_req[i].complete(&prtd->dma_req[i]); } break; |