1 files changed, 137 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/bridge_cs35l56.c b/sound/soc/intel/boards/bridge_cs35l56.c
new file mode 100644
index 000000000000..c3995e724aed
--- /dev/null
+++ b/sound/soc/intel/boards/bridge_cs35l56.c
@@ -0,0 +1,137 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Intel SOF Machine Driver with Cirrus Logic CS35L56 Smart Amp
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include "sof_sdw_common.h"
+
+static const struct snd_soc_dapm_widget bridge_widgets[] = {
+	SND_SOC_DAPM_SPK("Bridge Speaker", NULL),
+};
+
+static const struct snd_soc_dapm_route bridge_map[] = {
+	{"Bridge Speaker", NULL, "AMPL SPK"},
+	{"Bridge Speaker", NULL, "AMPR SPK"},
+};
+
+static const char * const bridge_cs35l56_name_prefixes[] = {
+	"AMPL",
+	"AMPR",
+};
+
+static int bridge_cs35l56_asp_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_card *card = rtd->card;
+	int i, ret;
+	unsigned int rx_mask = 3; // ASP RX1, RX2
+	unsigned int tx_mask = 3; // ASP TX1, TX2
+	struct snd_soc_dai *codec_dai;
+	struct snd_soc_dai *cpu_dai;
+
+	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
+					  "%s spk:cs35l56-bridge",
+					  card->components);
+	if (!card->components)
+		return -ENOMEM;
+
+	ret = snd_soc_dapm_new_controls(&card->dapm, bridge_widgets,
+					ARRAY_SIZE(bridge_widgets));
+	if (ret) {
+		dev_err(card->dev, "widgets addition failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, bridge_map, ARRAY_SIZE(bridge_map));
+	if (ret) {
+		dev_err(card->dev, "map addition failed: %d\n", ret);
+		return ret;
+	}
+
+	/* 4 x 16-bit sample slots and FSYNC=48000, BCLK=3.072 MHz */
+	for_each_rtd_codec_dais(rtd, i, codec_dai) {
+		ret = snd_soc_dai_set_tdm_slot(codec_dai, tx_mask, rx_mask, 4, 16);
+		if (ret < 0)
+			return ret;
+
+		ret = snd_soc_dai_set_sysclk(codec_dai, 0, 3072000, SND_SOC_CLOCK_IN);
+		if (ret < 0)
+			return ret;
+	}
+
+	for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
+		ret = snd_soc_dai_set_tdm_slot(cpu_dai, tx_mask, rx_mask, 4, 16);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_pcm_stream bridge_params = {
+	.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	.rate_min = 48000,
+	.rate_max = 48000,
+	.channels_min = 2,
+	.channels_max = 2,
+};
+
+SND_SOC_DAILINK_DEFS(bridge_dai,
+		     DAILINK_COMP_ARRAY(COMP_CODEC("cs42l43-codec", "cs42l43-asp")),
+		     DAILINK_COMP_ARRAY(COMP_CODEC("spi-cs35l56-left", "cs35l56-asp1"),
+					COMP_CODEC("spi-cs35l56-right", "cs35l56-asp1")),
+		     DAILINK_COMP_ARRAY(COMP_PLATFORM("cs42l43-codec")));
+
+static const struct snd_soc_dai_link bridge_dai_template = {
+	.name = "cs42l43-cs35l56",
+	.init = bridge_cs35l56_asp_init,
+	.c2c_params = &bridge_params,
+	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBC_CFC,
+	SND_SOC_DAILINK_REG(bridge_dai),
+};
+
+int bridge_cs35l56_count_sidecar(struct snd_soc_card *card,
+				 int *num_dais, int *num_devs)
+{
+	if (sof_sdw_quirk & SOF_SIDECAR_AMPS) {
+		(*num_dais)++;
+		(*num_devs) += ARRAY_SIZE(bridge_cs35l56_name_prefixes);
+	}
+
+	return 0;
+}
+
+int bridge_cs35l56_add_sidecar(struct snd_soc_card *card,
+			       struct snd_soc_dai_link **dai_links,
+			       struct snd_soc_codec_conf **codec_conf)
+{
+	if (sof_sdw_quirk & SOF_SIDECAR_AMPS) {
+		**dai_links = bridge_dai_template;
+
+		for (int i = 0; i < ARRAY_SIZE(bridge_cs35l56_name_prefixes); i++) {
+			(*codec_conf)->dlc.name = (*dai_links)->codecs[i].name;
+			(*codec_conf)->name_prefix = bridge_cs35l56_name_prefixes[i];
+			(*codec_conf)++;
+		}
+
+		(*dai_links)++;
+	}
+
+	return 0;
+}
+
+int bridge_cs35l56_spk_init(struct snd_soc_card *card,
+			    struct snd_soc_dai_link *dai_links,
+			    struct sof_sdw_codec_info *info,
+			    bool playback)
+{
+	if (sof_sdw_quirk & SOF_SIDECAR_AMPS)
+		info->amp_num += ARRAY_SIZE(bridge_cs35l56_name_prefixes);
+
+	return 0;
+}