ASoC: SOF: parse multiple SSP DAI and hw configs

ASoC parses multiple hw_configs defined in topology. However currently
in SOF only the first config is used and others are discarded. First
change SOF driver to parse and save possible multiple configs in ssp
case. Also save the default config value provided by ASoC. Functionality
with only one defined config stays the same.
Signed-off-by: Jaska Uimonen <jaska.uimonen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210326165150.255533-1-kai.vehmanen@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/pcm.c

@@ -673,10 +673,10 @@ int sof_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_pa
 	/* read rate and channels from topology */
 	switch (dai->dai_config->type) {
 	case SOF_DAI_INTEL_SSP:
-		rate->min = dai->dai_config->ssp.fsync_rate;
-		rate->max = dai->dai_config->ssp.fsync_rate;
-		channels->min = dai->dai_config->ssp.tdm_slots;
-		channels->max = dai->dai_config->ssp.tdm_slots;
+		rate->min = dai->dai_config[dai->current_config].ssp.fsync_rate;
+		rate->max = dai->dai_config[dai->current_config].ssp.fsync_rate;
+		channels->min = dai->dai_config[dai->current_config].ssp.tdm_slots;
+		channels->max = dai->dai_config[dai->current_config].ssp.tdm_slots;
 
 		dev_dbg(component->dev,
 			"rate_min: %d rate_max: %d\n", rate->min, rate->max);

sound/soc/sof/sof-audio.h

@@ -112,6 +112,8 @@ struct snd_sof_dai {
 	const char *cpu_dai_name;
 
 	struct sof_ipc_comp_dai comp_dai;
+	int number_configs;
+	int current_config;
 	struct sof_ipc_dai_config *dai_config;
 	struct list_head list;	/* list in sdev dai list */
 };