linux-kernel - [PATCH v3 4/6] ASoC: qdsp6: q6apm-dai: set correct period and buffer alignment.

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Message-Id: <20250304105723.10579-5-srinivas.kandagatla@linaro.org>
Date: Tue,  4 Mar 2025 10:57:21 +0000
From: srinivas.kandagatla@...aro.org
To: broonie@...nel.org
Cc: perex@...ex.cz,
	tiwai@...e.com,
	krzysztof.kozlowski@...aro.org,
	linux-sound@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	dmitry.baryshkov@...aro.org,
	johan+linaro@...nel.org,
	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH v3 4/6] ASoC: qdsp6: q6apm-dai: set correct period and buffer alignment.

From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>

DSP expects the buffers to be aligned to 64 bytes. Having a 32 byte
alignment can result in fast playback or capture in some configurations.

Fixes: 9b4fe0f1cd79 ("ASoC: qdsp6: audioreach: add q6apm-dai support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 sound/soc/qcom/qdsp6/q6apm-dai.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/qcom/qdsp6/q6apm-dai.c b/sound/soc/qcom/qdsp6/q6apm-dai.c
index 90cb24947f31..bb761ee0164b 100644
--- a/sound/soc/qcom/qdsp6/q6apm-dai.c
+++ b/sound/soc/qcom/qdsp6/q6apm-dai.c
@@ -385,13 +385,13 @@ static int q6apm_dai_open(struct snd_soc_component *component,
 		}
 	}
 
-	ret = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
+	ret = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
 	if (ret < 0) {
 		dev_err(dev, "constraint for period bytes step ret = %d\n", ret);
 		goto err;
 	}
 
-	ret = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 32);
+	ret = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 64);
 	if (ret < 0) {
 		dev_err(dev, "constraint for buffer bytes step ret = %d\n", ret);
 		goto err;
-- 
2.39.5