Commit c0aad2fe authored Jul 19, 2023 by Matus Gajdos Committed by Greg Kroah-Hartman Aug 11, 2023

ASoC: fsl_spdif: Silence output on stop



[ Upstream commit 0e4c2b6b0c4a4b4014d9424c27e5e79d185229c5 ]

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

Fixes: a2388a49 ("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>

parent 3bd1b479

sound/soc/fsl/fsl_spdif.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -615,6 +615,8 @@ static int fsl_spdif_trigger(struct snd_pcm_substream *substream,
		case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
		regmap_update_bits(regmap, REG_SPDIF_SCR, dmaen, 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;
		default:
		return -EINVAL;