ASoC: amd: acp: Add DMIC machine driver ops

Add dmic ops and startup callback to add snd_pcm_hw_constraint for
pdm related device node.

Signed-off-by: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
Link: https://lore.kernel.org/r/20220222124213.721224-4-AjitKumar.Pandey@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/amd/acp/acp-mach-common.c b/sound/soc/amd/acp/acp-mach-common.c
index b45442a..d3034ee 100644 (file)
--- a/sound/soc/amd/acp/acp-mach-common.c
+++ b/sound/soc/amd/acp/acp-mach-common.c
@@ -291,6 +291,32 @@ static const struct snd_soc_ops acp_card_rt5682s_ops = {
        .shutdown = acp_card_shutdown,
 };
 
+static const unsigned int dmic_channels[] = {
+       DUAL_CHANNEL, FOUR_CHANNEL,
+};
+
+static const struct snd_pcm_hw_constraint_list dmic_constraints_channels = {
+       .count = ARRAY_SIZE(dmic_channels),
+       .list = dmic_channels,
+       .mask = 0,
+};
+
+static int acp_card_dmic_startup(struct snd_pcm_substream *substream)
+{
+       struct snd_pcm_runtime *runtime = substream->runtime;
+
+       snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+                                  &dmic_constraints_channels);
+       snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+                                  &constraints_rates);
+
+       return 0;
+}
+
+static const struct snd_soc_ops acp_card_dmic_ops = {
+       .startup = acp_card_dmic_startup,
+};
+
 /* Declare RT1019 codec components */
 SND_SOC_DAILINK_DEF(rt1019,
        DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC1019:00", "rt1019-aif"),
@@ -633,6 +659,7 @@ int acp_legacy_dai_links_create(struct snd_soc_card *card)
                links[i].num_cpus = ARRAY_SIZE(pdm_dmic);
                links[i].platforms = platform_component;
                links[i].num_platforms = ARRAY_SIZE(platform_component);
+               links[i].ops = &acp_card_dmic_ops;
                links[i].dpcm_capture = 1;
        }