ASoC: Intel: sof_sdw: Add support for cs42l43 optional speaker output

Add support for the optional speaker output on the cs42l43, this uses
the new SOF_CODEC_SPKR quirk to conditional include the speaker DAI
link. It is worth noting that currently no systems are included that
utilise this feature, but the feature is added as several systems are on
the horizon. As part of this SOF_SDW_MAX_DAI_NUM must be increased, it
is currently 3 but cs42l43 will now have 4 DAI links. This value is
increased to 8 to give some head room for future devices.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://msgid.link/r/20240326160429.13560-35-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/sound/soc/intel/boards/sof_sdw_cs42l43.c b/sound/soc/intel/boards/sof_sdw_cs42l43.c
index a9b6edac2ecd..5361249f0f53 100644
--- a/sound/soc/intel/boards/sof_sdw_cs42l43.c
+++ b/sound/soc/intel/boards/sof_sdw_cs42l43.c
@@ -30,6 +30,17 @@ static const struct snd_soc_dapm_route cs42l43_hs_map[] = {
 	{ "cs42l43 ADC1_IN1_N", NULL, "Headset Mic" },
 };
 
+static const struct snd_soc_dapm_widget cs42l43_spk_widgets[] = {
+	SND_SOC_DAPM_SPK("Speaker", NULL),
+};
+
+static const struct snd_soc_dapm_route cs42l43_spk_map[] = {
+	{ "Speaker", NULL, "cs42l43 AMP1_OUT_P", },
+	{ "Speaker", NULL, "cs42l43 AMP1_OUT_N", },
+	{ "Speaker", NULL, "cs42l43 AMP2_OUT_P", },
+	{ "Speaker", NULL, "cs42l43 AMP2_OUT_N", },
+};
+
 static const struct snd_soc_dapm_widget cs42l43_dmic_widgets[] = {
 	SND_SOC_DAPM_MIC("DMIC", NULL),
 };
@@ -108,6 +119,45 @@ int cs42l43_hs_rtd_init(struct snd_soc_pcm_runtime *rtd)
 	return ret;
 }
 
+int cs42l43_spk_rtd_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_card *card = rtd->card;
+	int ret;
+
+	card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s spk:cs42l43-spk",
+					  card->components);
+	if (!card->components)
+		return -ENOMEM;
+
+	ret = snd_soc_dapm_new_controls(&card->dapm, cs42l43_spk_widgets,
+					ARRAY_SIZE(cs42l43_spk_widgets));
+	if (ret) {
+		dev_err(card->dev, "cs42l43 speaker widgets addition failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, cs42l43_spk_map,
+				      ARRAY_SIZE(cs42l43_spk_map));
+	if (ret)
+		dev_err(card->dev, "cs42l43 speaker map addition failed: %d\n", ret);
+
+	return ret;
+}
+
+int sof_sdw_cs42l43_spk_init(struct snd_soc_card *card,
+			     struct snd_soc_dai_link *dai_links,
+			     struct sof_sdw_codec_info *info,
+			     bool playback)
+{
+	/* Do init on playback link only. */
+	if (!playback)
+		return 0;
+
+	info->amp_num++;
+
+	return 0;
+}
+
 int cs42l43_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_card *card = rtd->card;