ACP common dma driver has a buffer size and period size restriction which should be 64 byte aligned. Add pcm constraints for the same.
Signed-off-by: Vijendar Mukunda Vijendar.Mukunda@amd.com --- sound/soc/amd/acp/acp-platform.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/sound/soc/amd/acp/acp-platform.c b/sound/soc/amd/acp/acp-platform.c index aaac8aa744cb..4f409cd09c11 100644 --- a/sound/soc/amd/acp/acp-platform.c +++ b/sound/soc/amd/acp/acp-platform.c @@ -197,6 +197,20 @@ static int acp_dma_open(struct snd_soc_component *component, struct snd_pcm_subs else runtime->hw = acp_pcm_hardware_capture;
+ ret = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, DMA_SIZE); + if (ret) { + dev_err(component->dev, "set hw constraint HW_PARAM_PERIOD_BYTES failed\n"); + kfree(stream); + return ret; + } + + ret = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, DMA_SIZE); + if (ret) { + dev_err(component->dev, "set hw constraint HW_PARAM_BUFFER_BYTES failed\n"); + kfree(stream); + return ret; + } + ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); if (ret < 0) { dev_err(component->dev, "set integer constraint failed\n");