ASoc: Intel: boards: update constraints for nau88l25_ssm4567 machine

We have specific constraints for FE device (48KHz, stereo, 16
bits) and fixups for BE DMIC links (2 or 4 ch), so add those.

Also add one more FE DAIlink for dmiccap

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Fang, Yang A <yang.a.fang@intel.com>
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/skl_nau88l25_ssm4567.c

@@ -192,6 +192,65 @@ static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
 	return ret;
 }
 
+static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dapm_context *dapm;
+	struct snd_soc_component *component = rtd->cpu_dai->component;
+
+	dapm = snd_soc_component_get_dapm(component);
+	snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
+
+	return 0;
+}
+
+static unsigned int rates[] = {
+	48000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_rates = {
+	.count = ARRAY_SIZE(rates),
+	.list  = rates,
+	.mask = 0,
+};
+
+static unsigned int channels[] = {
+	2,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_channels = {
+	.count = ARRAY_SIZE(channels),
+	.list = channels,
+	.mask = 0,
+};
+
+static int skl_fe_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	/*
+	 * on this platform for PCM device we support,
+	 *	48Khz
+	 *	stereo
+	 *	16 bit audio
+	 */
+
+	runtime->hw.channels_max = 2;
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+					   &constraints_channels);
+
+	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
+
+	snd_pcm_hw_constraint_list(runtime, 0,
+				SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+
+	return 0;
+}
+
+static const struct snd_soc_ops skylake_nau8825_fe_ops = {
+	.startup = skl_fe_startup,
+};
+
 static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
 			struct snd_pcm_hw_params *params)
 {
@@ -211,6 +270,19 @@ static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
 	return 0;
 }
 
+static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
+			struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *channels = hw_param_interval(params,
+						SNDRV_PCM_HW_PARAM_CHANNELS);
+	if (params_channels(params) == 2)
+		channels->min = channels->max = 2;
+	else
+		channels->min = channels->max = 4;
+
+	return 0;
+}
+
 static int skylake_nau8825_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params)
 {
@@ -231,6 +303,52 @@ static struct snd_soc_ops skylake_nau8825_ops = {
 	.hw_params = skylake_nau8825_hw_params,
 };
 
+static unsigned int channels_dmic[] = {
+	2, 4,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
+	.count = ARRAY_SIZE(channels_dmic),
+	.list = channels_dmic,
+	.mask = 0,
+};
+
+static int skylake_dmic_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	runtime->hw.channels_max = 4;
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+			&constraints_dmic_channels);
+
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+}
+
+static struct snd_soc_ops skylake_dmic_ops = {
+	.startup = skylake_dmic_startup,
+};
+
+static unsigned int rates_16000[] = {
+	16000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_16000 = {
+	.count = ARRAY_SIZE(rates_16000),
+	.list  = rates_16000,
+};
+
+static int skylake_refcap_startup(struct snd_pcm_substream *substream)
+{
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE,
+			&constraints_16000);
+}
+
+static struct snd_soc_ops skylaye_refcap_ops = {
+	.startup = skylake_refcap_startup,
+};
+
 /* skylake digital audio interface glue - connects codec <--> CPU */
 static struct snd_soc_dai_link skylake_dais[] = {
 	/* Front End DAI links */
@@ -243,9 +361,11 @@ static struct snd_soc_dai_link skylake_dais[] = {
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.nonatomic = 1,
+		.init = skylake_nau8825_fe_init,
 		.trigger = {
 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dpcm_playback = 1,
+		.ops = &skylake_nau8825_fe_ops,
 	},
 	{
 		.name = "Skl Audio Capture Port",
@@ -259,6 +379,7 @@ static struct snd_soc_dai_link skylake_dais[] = {
 		.trigger = {
 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dpcm_capture = 1,
+		.ops = &skylake_nau8825_fe_ops,
 	},
 	{
 		.name = "Skl Audio Reference cap",
@@ -272,6 +393,20 @@ static struct snd_soc_dai_link skylake_dais[] = {
 		.ignore_suspend = 1,
 		.nonatomic = 1,
 		.dynamic = 1,
+		.ops = &skylaye_refcap_ops,
+	},
+	{
+		.name = "Skl Audio DMIC cap",
+		.stream_name = "dmiccap",
+		.cpu_dai_name = "DMIC Pin",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.platform_name = "0000:00:1f.3",
+		.init = NULL,
+		.dpcm_capture = 1,
+		.nonatomic = 1,
+		.dynamic = 1,
+		.ops = &skylake_dmic_ops,
 	},
 	/* Back End DAI links */
 	{
@@ -317,6 +452,7 @@ static struct snd_soc_dai_link skylake_dais[] = {
 		.codec_dai_name = "dmic-hifi",
 		.platform_name = "0000:00:1f.3",
 		.ignore_suspend = 1,
+		.be_hw_params_fixup = skylake_dmic_fixup,
 		.dpcm_capture = 1,
 		.no_pcm = 1,
 	},