[PATCH] ASoC: fsl: imx-card: Skip sysclk reset for active DAIs in shutdown
From: Chancel Liu <hidden>
Date: 2026-07-10 03:13:45
Also in:
imx, linux-arm-kernel, linux-sound, lkml, stable
Subsystem:
freescale soc sound drivers, sound, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers:
Shengjiu Wang, Xiubo Li, Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Linus Torvalds
From: Chancel Liu <redacted>
In a full-duplex setup, when one direction (playback or capture) is
closed while the other is still running, imx_aif_shutdown() was
unconditionally calling snd_soc_dai_set_sysclk() with rate=0 for all
cpu/codec DAIs, which would disable the clock still needed by the
active stream.
Add snd_soc_dai_active() checks before clearing sysclk so that only
truly inactive DAIs have their clocks reset.
Fixes: 2260bc6ea8bd ("ASoC: imx-card: Add WM8524 support")
Cc: stable@vger.kernel.org
Signed-off-by: Chancel Liu <redacted>
---
sound/soc/fsl/imx-card.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c
index a4518fefad69..43438af1e1c6 100644
--- a/sound/soc/fsl/imx-card.c
+++ b/sound/soc/fsl/imx-card.c@@ -496,11 +496,15 @@ static void imx_aif_shutdown(struct snd_pcm_substream *substream) struct snd_soc_dai *codec_dai; int i; - for_each_rtd_cpu_dais(rtd, i, cpu_dai) - snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT); + for_each_rtd_cpu_dais(rtd, i, cpu_dai) { + if (!snd_soc_dai_active(cpu_dai)) + snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT); + } - for_each_rtd_codec_dais(rtd, i, codec_dai) - snd_soc_dai_set_sysclk(codec_dai, 0, 0, SND_SOC_CLOCK_IN); + for_each_rtd_codec_dais(rtd, i, codec_dai) { + if (!snd_soc_dai_active(codec_dai)) + snd_soc_dai_set_sysclk(codec_dai, 0, 0, SND_SOC_CLOCK_IN); + } } static const struct snd_soc_ops imx_aif_ops = {
--
2.50.1