ASoC: intel: sof_sdw: Add CS42L43 CODEC support

Add support for the Cirrus Logic CS42L43 using SoundWire.
Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230919020011.1896041-2-yung-chuan.liao@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/Kconfig

@@ -689,6 +689,10 @@ config SND_SOC_INTEL_SOUNDWIRE_SOF_MACH
 	select SND_SOC_RT1318_SDW
 	select SND_SOC_RT5682_SDW
 	select SND_SOC_CS42L42_SDW
+	select SND_SOC_CS42L43
+	select SND_SOC_CS42L43_SDW
+	select MFD_CS42L43
+	select MFD_CS42L43_SDW
 	select SND_SOC_CS35L56_SDW
 	select SND_SOC_DMIC
 	select SND_SOC_INTEL_HDA_DSP_COMMON

sound/soc/intel/boards/Makefile

@@ -42,7 +42,8 @@ snd-soc-sof-sdw-objs += sof_sdw.o				\
 			sof_sdw_rt711.o sof_sdw_rt_sdca_jack_common.o	\
 			sof_sdw_rt712_sdca.o sof_sdw_rt715.o	\
 			sof_sdw_rt715_sdca.o sof_sdw_dmic.o	\
-			sof_sdw_cs42l42.o sof_sdw_cs_amp.o	\
+			sof_sdw_cs42l42.o sof_sdw_cs42l43.o	\
+			sof_sdw_cs_amp.o			\
 			sof_sdw_hdmi.o
 obj-$(CONFIG_SND_SOC_INTEL_SOF_RT5682_MACH) += snd-soc-sof_rt5682.o
 obj-$(CONFIG_SND_SOC_INTEL_SOF_CS42L42_MACH) += snd-soc-sof_cs42l42.o

sound/soc/intel/boards/sof_sdw.c

@@ -915,6 +915,33 @@ static struct sof_sdw_codec_info codec_info_list[] = {
 		},
 		.dai_num = 1,
 	},
+	{
+		.part_id = 0x4243,
+		.codec_name = "cs42l43-codec",
+		.dais = {
+			{
+				.direction = {true, false},
+				.dai_name = "cs42l43-dp5",
+				.dai_type = SOF_SDW_DAI_TYPE_JACK,
+				.dailink = {SDW_JACK_OUT_DAI_ID, SDW_UNUSED_DAI_ID},
+				.init = sof_sdw_cs42l43_hs_init,
+			},
+			{
+				.direction = {false, true},
+				.dai_name = "cs42l43-dp1",
+				.dai_type = SOF_SDW_DAI_TYPE_JACK,
+				.dailink = {SDW_UNUSED_DAI_ID, SDW_JACK_IN_DAI_ID},
+			},
+			{
+				.direction = {false, true},
+				.dai_name = "cs42l43-dp2",
+				.dai_type = SOF_SDW_DAI_TYPE_MIC,
+				.dailink = {SDW_UNUSED_DAI_ID, SDW_DMIC_DAI_ID},
+				.init = sof_sdw_cs42l43_dmic_init,
+			}
+		},
+		.dai_num = 3,
+	},
 	{
 		.part_id = 0xaaaa, /* generic codec mockup */
 		.version_id = 0,

sound/soc/intel/boards/sof_sdw_common.h

@@ -210,6 +210,19 @@ int sof_sdw_cs42l42_init(struct snd_soc_card *card,
 			 struct sof_sdw_codec_info *info,
 			 bool playback);
 
+/* CS42L43 support */
+int sof_sdw_cs42l43_hs_init(struct snd_soc_card *card,
+			    const struct snd_soc_acpi_link_adr *link,
+			    struct snd_soc_dai_link *dai_links,
+			    struct sof_sdw_codec_info *info,
+			    bool playback);
+
+int sof_sdw_cs42l43_dmic_init(struct snd_soc_card *card,
+			      const struct snd_soc_acpi_link_adr *link,
+			      struct snd_soc_dai_link *dai_links,
+			      struct sof_sdw_codec_info *info,
+			      bool playback);
+
 /* CS AMP support */
 int sof_sdw_cs_amp_init(struct snd_soc_card *card,
 			const struct snd_soc_acpi_link_adr *link,

sound/soc/intel/boards/sof_sdw_cs42l43.c

+// SPDX-License-Identifier: GPL-2.0-only
+// Based on sof_sdw_rt5682.c
+// Copyright (c) 2023 Intel Corporation
+
+/*
+ *  sof_sdw_cs42l43 - Helpers to handle CS42L43 from generic machine driver
+ */
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <sound/jack.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_type.h>
+#include <sound/cs42l43.h>
+#include <sound/control.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include <sound/soc-dapm.h>
+#include "sof_sdw_common.h"
+
+static const struct snd_soc_dapm_widget cs42l43_hs_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route cs42l43_hs_map[] = {
+	{ "Headphone", NULL, "cs42l43 AMP3_OUT" },
+	{ "Headphone", NULL, "cs42l43 AMP4_OUT" },
+	{ "cs42l43 ADC1_IN1_P", NULL, "Headset Mic" },
+	{ "cs42l43 ADC1_IN1_N", NULL, "Headset Mic" },
+};
+
+static const struct snd_soc_dapm_widget cs42l43_dmic_widgets[] = {
+	SND_SOC_DAPM_MIC("DMIC", NULL),
+};
+
+static const struct snd_soc_dapm_route cs42l43_dmic_map[] = {
+	{ "cs42l43 PDM1_DIN", NULL, "DMIC" },
+	{ "cs42l43 PDM2_DIN", NULL, "DMIC" },
+};
+
+static int cs42l43_hs_rtd_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+	struct mc_private *ctx = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_jack *jack = &ctx->sdw_headset;
+	struct snd_soc_card *card = rtd->card;
+	int ret;
+
+	card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s hs:cs42l43", card->components);
+	if (!card->components)
+		return -ENOMEM;
+
+	ret = snd_soc_dapm_new_controls(&card->dapm, cs42l43_hs_widgets,
+					ARRAY_SIZE(cs42l43_hs_widgets));
+	if (ret) {
+		dev_err(card->dev, "cs42l43 hs widgets addition failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, cs42l43_hs_map,
+				      ARRAY_SIZE(cs42l43_hs_map));
+
+	if (ret) {
+		dev_err(card->dev, "cs42l43 hs map addition failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_card_jack_new(card, "Headphone Jack",
+				    SND_JACK_MECHANICAL | SND_JACK_AVOUT |
+				    SND_JACK_HEADSET | SND_JACK_LINEOUT |
+				    SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+				    SND_JACK_BTN_2 | SND_JACK_BTN_3,
+				    jack);
+	if (ret) {
+		dev_err(card->dev, "Failed to create jack: %d\n", ret);
+		return ret;
+	}
+
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
+
+	ret = snd_soc_component_set_jack(component, jack, NULL);
+	if (ret) {
+		dev_err(card->dev, "Failed to register jack: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_component_set_sysclk(component, CS42L43_SYSCLK, CS42L43_SYSCLK_SDW,
+					   0, SND_SOC_CLOCK_IN);
+	if (ret)
+		dev_err(card->dev, "Failed to set sysclk: %d\n", ret);
+
+	return ret;
+}
+
+int sof_sdw_cs42l43_hs_init(struct snd_soc_card *card, const struct snd_soc_acpi_link_adr *link,
+			    struct snd_soc_dai_link *dai_links, struct sof_sdw_codec_info *info,
+			    bool playback)
+{
+	/*
+	 * No need to test if (!playback) like other codecs as cs42l43 uses separated dai for
+	 * playback and capture, and sof_sdw_cs42l43_init is only linked to the playback dai.
+	 */
+
+	dai_links->init = cs42l43_hs_rtd_init;
+
+	return 0;
+}
+
+static int cs42l43_dmic_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 mic:cs42l43-dmic",
+					  card->components);
+	if (!card->components)
+		return -ENOMEM;
+
+	ret = snd_soc_dapm_new_controls(&card->dapm, cs42l43_dmic_widgets,
+					ARRAY_SIZE(cs42l43_dmic_widgets));
+	if (ret) {
+		dev_err(card->dev, "cs42l43 dmic widgets addition failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, cs42l43_dmic_map,
+				      ARRAY_SIZE(cs42l43_dmic_map));
+
+	if (ret)
+		dev_err(card->dev, "cs42l43 dmic map addition failed: %d\n", ret);
+
+	return ret;
+}
+
+int sof_sdw_cs42l43_dmic_init(struct snd_soc_card *card, const struct snd_soc_acpi_link_adr *link,
+			      struct snd_soc_dai_link *dai_links, struct sof_sdw_codec_info *info,
+			      bool playback)
+{
+	dai_links->init = cs42l43_dmic_rtd_init;
+	return 0;
+}