From 4e229f4264f4be7a6a554487714c0913ef59cf7f Mon Sep 17 00:00:00 2001 From: Maso Huang 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 Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20231024035019.11732-4-maso.huang@mediatek.com Signed-off-by: Mark Brown --- 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,