From 4794601a52d40a425542be1b88f8f5614fcf45b4 Mon Sep 17 00:00:00 2001
From: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Date: Thu, 25 Nov 2021 12:15:13 +0200
Subject: [PATCH] ASoC: SOF: Intel: hda: reset stream before coupling host and link DMA's
Git-commit: 4794601a52d40a425542be1b88f8f5614fcf45b4
Patch-mainline: v5.17-rc1
References: jsc#PED-850

The recommended programming sequence for HD-Audio DMA is to reset the
stream before coupling the link and host DMA's.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211125101520.291581-4-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/sof/intel/hda-stream.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/sof/intel/hda-stream.c b/sound/soc/sof/intel/hda-stream.c
index c2895bdd3f07..440827ce390d 100644
--- a/sound/soc/sof/intel/hda-stream.c
+++ b/sound/soc/sof/intel/hda-stream.c
@@ -659,6 +659,11 @@ int hda_dsp_stream_hw_free(struct snd_sof_dev *sdev,
 							hstream);
 	struct hdac_bus *bus = sof_to_bus(sdev);
 	u32 mask = 0x1 << stream->index;
+	int ret;
+
+	ret = hda_dsp_stream_reset(sdev, stream);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_irq(&bus->reg_lock);
 	/* couple host and link DMA if link DMA channel is idle */
-- 
2.35.3