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ASoC: fsl_spdif: Silence output on stop

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[ Upstream commit 0e4c2b6b0c4a4b4014d9424c27e5e79d185229c5 ]

Clear TX registers on stop to prevent the SPDIF interface from sending
last written word over and over again.

Fixes: a2388a498a ("ASoC: fsl: Add S/PDIF CPU DAI driver")
Signed-off-by: Matus Gajdos <matuszpd@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20230719164729.19969-1-matuszpd@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Matus Gajdos 2023-07-19 18:47:29 +02:00 committed by Greg Kroah-Hartman
parent 6806494ed4
commit f656ba177f
1 changed files with 2 additions and 0 deletions
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sound/soc/fsl/fsl_spdif.c
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@ -751,6 +751,8 @@ static int fsl_spdif_trigger(struct snd_pcm_substream *substream,
case SNDRV_PCM_TRIGGER_PAUSE_PUSH: case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
regmap_update_bits(regmap, REG_SPDIF_SCR, dmaen, 0); regmap_update_bits(regmap, REG_SPDIF_SCR, dmaen, 0);
regmap_update_bits(regmap, REG_SPDIF_SIE, intr, 0); regmap_update_bits(regmap, REG_SPDIF_SIE, intr, 0);
regmap_write(regmap, REG_SPDIF_STL, 0x0);
regmap_write(regmap, REG_SPDIF_STR, 0x0);
break; break;
default: default:
return -EINVAL; return -EINVAL;