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From 39bd801d6908900e9ab0cdc2655150f95ddd4f1a Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.cirrus.com>
Date: Fri, 4 Nov 2022 13:22:13 +0000
Subject: [PATCH] ASoC: soc-pcm: Don't zero TDM masks in __soc_pcm_open()
Git-commit: 39bd801d6908900e9ab0cdc2655150f95ddd4f1a
Patch-mainline: v6.1-rc7
References: git-fixes

The DAI tx_mask and rx_mask are set by snd_soc_dai_set_tdm_slot()
and used by later code that depends on the TDM settings. So
__soc_pcm_open() should not be obliterating those mask values.

The code in __soc_pcm_hw_params() uses these masks to calculate the
active channels so that only the AIF_IN/AIF_OUT widgets for the
active TDM slots are enabled. The zeroing of the masks in
__soc_pcm_open() disables this functionality so all AIF widgets
were enabled even for channels that are not assigned to a TDM slot.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 2e5894d73789 ("ASoC: pcm: Add support for DAI multicodec")
Link: https://lore.kernel.org/r/20221104132213.121847-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/soc-pcm.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index fb87d6d23408..8ceded22a3c4 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -822,11 +822,6 @@ static int __soc_pcm_open(struct snd_soc_pcm_runtime *rtd,
 		ret = snd_soc_dai_startup(dai, substream);
 		if (ret < 0)
 			goto err;
-
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			dai->tx_mask = 0;
-		else
-			dai->rx_mask = 0;
 	}
 
 	/* Dynamic PCM DAI links compat checks use dynamic capabilities */
-- 
2.35.3