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From 4e229f4264f4be7a6a554487714c0913ef59cf7f Mon Sep 17 00:00:00 2001
From: Maso Huang <maso.huang@mediatek.com>
Date: Tue, 24 Oct 2023 11:50:19 +0800
Subject: [PATCH 9/9] ASoC: mediatek: mt7986: add sample rate checker
mt7986 only supports 8/12/16/24/32/48/96/192 kHz
Signed-off-by: Maso Huang <maso.huang@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20231024035019.11732-4-maso.huang@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---
sound/soc/mediatek/mt7986/mt7986-dai-etdm.c | 23 +++++++++++++++++----
1 file changed, 19 insertions(+), 4 deletions(-)
--- a/sound/soc/mediatek/mt7986/mt7986-dai-etdm.c
+++ b/sound/soc/mediatek/mt7986/mt7986-dai-etdm.c
@@ -237,12 +237,27 @@ static int mtk_dai_etdm_hw_params(struct
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
+ unsigned int rate = params_rate(params);
struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
- mtk_dai_etdm_config(afe, params, dai, SNDRV_PCM_STREAM_PLAYBACK);
- mtk_dai_etdm_config(afe, params, dai, SNDRV_PCM_STREAM_CAPTURE);
-
- return 0;
+ switch (rate) {
+ case 8000:
+ case 12000:
+ case 16000:
+ case 24000:
+ case 32000:
+ case 48000:
+ case 96000:
+ case 192000:
+ mtk_dai_etdm_config(afe, params, dai, SNDRV_PCM_STREAM_PLAYBACK);
+ mtk_dai_etdm_config(afe, params, dai, SNDRV_PCM_STREAM_CAPTURE);
+ return 0;
+ default:
+ dev_err(afe->dev,
+ "Sample rate %d invalid. Supported rates: 8/12/16/24/32/48/96/192 kHz\n",
+ rate);
+ return -EINVAL;
+ }
}
static int mtk_dai_etdm_trigger(struct snd_pcm_substream *substream, int cmd,
|