On Baytrail/Cherrytrail, the Atom/SST driver fails miserably:
[    9.741953] intel_sst_acpi 
80860F28:00: FW Version 01.0c.00.01
[    9.832992] intel_sst_acpi 
80860F28:00: FW sent error response 0x40034
[    9.833019] intel_sst_acpi 
80860F28:00: FW alloc failed ret -4
[    9.833028] intel_sst_acpi 
80860F28:00: sst_get_stream returned err -5
[    9.833033] sst-mfld-platform sst-mfld-platform: ASoC: DAI prepare error: -5
[    9.833037]  Baytrail Audio Port: ASoC: prepare FE Baytrail Audio Port failed
[    9.853942] intel_sst_acpi 
80860F28:00: FW sent error response 0x40034
[    9.853974] intel_sst_acpi 
80860F28:00: FW alloc failed ret -4
[    9.853984] intel_sst_acpi 
80860F28:00: sst_get_stream returned err -5
[    9.853990] sst-mfld-platform sst-mfld-platform: ASoC: DAI prepare error: -5
[    9.853994]  Baytrail Audio Port: ASoC: prepare FE Baytrail Audio Port failed
Commit 
b56be800f1292 ("ASoC: soc-pcm: call
snd_soc_dai_startup()/shutdown() once") was the initial problematic
commit.
Commit 
1ba616bd1a6d5e ("ASoC: soc-dai: fix DAI startup/shutdown sequence")
was an attempt to fix things but it does not work on Baytrail,
reverting all changes seems necessary for now.
Fixes: 1ba616bd1a6d5e ("ASoC: soc-dai: fix DAI startup/shutdown sequence")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200415030437.23803-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 
        /* bit field */
        unsigned int probed:1;
-       unsigned int started[SNDRV_PCM_STREAM_LAST + 1];
 };
 
 static inline struct snd_soc_pcm_stream *
 
 {
        int ret = 0;
 
-       if (!dai->started[substream->stream] &&
-           dai->driver->ops->startup)
+       if (dai->driver->ops->startup)
                ret = dai->driver->ops->startup(substream, dai);
 
-       if (ret == 0)
-               dai->started[substream->stream] = 1;
-
        return ret;
 }
 
 void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
                         struct snd_pcm_substream *substream)
 {
-       if (dai->started[substream->stream] &&
-           dai->driver->ops->shutdown)
+       if (dai->driver->ops->shutdown)
                dai->driver->ops->shutdown(substream, dai);
-
-       dai->started[substream->stream] = 0;
 }
 
 int snd_soc_dai_prepare(struct snd_soc_dai *dai,