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[8/8] ASoC: amd: acp: add pcm constraints for buffer size and period size

Message ID 20240617072844.871468-8-Vijendar.Mukunda@amd.com
State New
Headers show
Series [1/8] ASoC: amd: acp: add a null check for chip_pdev structure | expand

Commit Message

Vijendar Mukunda June 17, 2024, 7:28 a.m. UTC 
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(+)
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Patch

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");