[PATCH v2 0/4] Add support for CS42L43B codec to CS42L43 driver

[PATCH v2 0/4] Add support for CS42L43B codec to CS42L43 driver

[Maciej Strozek]

Hello,

Introducing CS42L43B, a variant of the CS42L43 codec with changes to
PDM (DMIC) inputs, RAM/ROM memory and extra channels to two SoundWire
ports and ISRCs, and can be supported by the existing CS42L43 driver
with some modifications.
Support is split into four commits:
 1. Add CS42L43B codec info to SoundWire utils
 2. Add dt binding for the new variant
 3. MFD driver part 1/2
 4. ASoC codec driver part 2/2

Regards,
Maciej

---
Changes in v2:
 - Rework the mechanism to identify the new variant along with some
   error handling improvements.
 - Added some comments in cs42l43_readable_register() for clarity.
 - Add handling of the I2C path for the B variant
 - Add a dt binding for the new variant
---

Maciej Strozek (4):
  ASoC: sdw_utils: Add CS42L43B codec info
  ASoC: dt-bindings: cirrus,cs42l43: Add CS42L43B variant
  mfd: cs42l43: Add support for the B variant
  ASoC: cs42l43: Add support for the B variant

 .../bindings/sound/cirrus,cs42l43.yaml        |   3 +
 drivers/mfd/cs42l43-i2c.c                     |   7 +-
 drivers/mfd/cs42l43-sdw.c                     |   4 +-
 drivers/mfd/cs42l43.c                         |  93 ++-
 drivers/mfd/cs42l43.h                         |   2 +-
 include/linux/mfd/cs42l43-regs.h              |  76 ++
 include/linux/mfd/cs42l43.h                   |   1 +
 sound/soc/codecs/cs42l43.c                    | 756 +++++++++++++++---
 sound/soc/codecs/cs42l43.h                    |   4 +-
 sound/soc/sdw_utils/soc_sdw_utils.c           |  54 ++
 10 files changed, 848 insertions(+), 152 deletions(-)

--
2.48.1

[PATCH v2 1/4] ASoC: sdw_utils: Add CS42L43B codec info

[Maciej Strozek]

Add codec_info for a new variant of CS42L43. It can resue existing info
but needs a new part_id.

Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
---
No changes in v2
---
 sound/soc/sdw_utils/soc_sdw_utils.c | 54 +++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/sound/soc/sdw_utils/soc_sdw_utils.c b/sound/soc/sdw_utils/soc_sdw_utils.c
index 6bf81ed132d8..8b59d181a70e 100644
--- a/sound/soc/sdw_utils/soc_sdw_utils.c
+++ b/sound/soc/sdw_utils/soc_sdw_utils.c
@@ -721,6 +721,60 @@ struct asoc_sdw_codec_info codec_info_list[] = {
 		},
 		.dai_num = 4,
 	},
+	{
+		.part_id = 0x2A3B,
+		.name_prefix = "cs42l43",
+		.count_sidecar = asoc_sdw_bridge_cs35l56_count_sidecar,
+		.add_sidecar = asoc_sdw_bridge_cs35l56_add_sidecar,
+		.dais = {
+			{
+				.direction = {true, false},
+				.codec_name = "cs42l43-codec",
+				.dai_name = "cs42l43-dp5",
+				.dai_type = SOC_SDW_DAI_TYPE_JACK,
+				.dailink = {SOC_SDW_JACK_OUT_DAI_ID, SOC_SDW_UNUSED_DAI_ID},
+				.rtd_init = asoc_sdw_cs42l43_hs_rtd_init,
+				.controls = generic_jack_controls,
+				.num_controls = ARRAY_SIZE(generic_jack_controls),
+				.widgets = generic_jack_widgets,
+				.num_widgets = ARRAY_SIZE(generic_jack_widgets),
+			},
+			{
+				.direction = {false, true},
+				.codec_name = "cs42l43-codec",
+				.dai_name = "cs42l43-dp1",
+				.dai_type = SOC_SDW_DAI_TYPE_MIC,
+				.dailink = {SOC_SDW_UNUSED_DAI_ID, SOC_SDW_DMIC_DAI_ID},
+				.rtd_init = asoc_sdw_cs42l43_dmic_rtd_init,
+				.widgets = generic_dmic_widgets,
+				.num_widgets = ARRAY_SIZE(generic_dmic_widgets),
+				.quirk = SOC_SDW_CODEC_MIC,
+				.quirk_exclude = true,
+			},
+			{
+				.direction = {false, true},
+				.codec_name = "cs42l43-codec",
+				.dai_name = "cs42l43-dp2",
+				.dai_type = SOC_SDW_DAI_TYPE_JACK,
+				.dailink = {SOC_SDW_UNUSED_DAI_ID, SOC_SDW_JACK_IN_DAI_ID},
+			},
+			{
+				.direction = {true, false},
+				.codec_name = "cs42l43-codec",
+				.dai_name = "cs42l43-dp6",
+				.dai_type = SOC_SDW_DAI_TYPE_AMP,
+				.dailink = {SOC_SDW_AMP_OUT_DAI_ID, SOC_SDW_UNUSED_DAI_ID},
+				.init = asoc_sdw_cs42l43_spk_init,
+				.rtd_init = asoc_sdw_cs42l43_spk_rtd_init,
+				.controls = generic_spk_controls,
+				.num_controls = ARRAY_SIZE(generic_spk_controls),
+				.widgets = generic_spk_widgets,
+				.num_widgets = ARRAY_SIZE(generic_spk_widgets),
+				.quirk = SOC_SDW_CODEC_SPKR | SOC_SDW_SIDECAR_AMPS,
+			},
+		},
+		.dai_num = 4,
+	},
 	{
 		.part_id = 0x4245,
 		.name_prefix = "cs42l45",
--
2.48.1

[PATCH v2 2/4] ASoC: dt-bindings: cirrus,cs42l43: Add CS42L43B variant

[Maciej Strozek]

CS42L43B variant adds dedicated PDM interface, SoundWire Clock Gearing
support and more decimators to ISRCs.

Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
---
 Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml
index 99a536601cc7..376928d1f64b 100644
--- a/Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml
+++ b/Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml
@@ -16,6 +16,8 @@ description: |
   DAC for headphone output, two integrated Class D amplifiers for
   loudspeakers, and two ADCs for wired headset microphone input or
   stereo line input. PDM inputs are provided for digital microphones.
+  CS42L43B variant adds dedicated PDM interface, SoundWire Clock Gearing
+  support and more decimators to ISRCs.

 allOf:
   - $ref: dai-common.yaml#
@@ -24,6 +26,7 @@ properties:
   compatible:
     enum:
       - cirrus,cs42l43
+      - cirrus,cs42l43b

   reg:
     maxItems: 1
--
2.48.1

[PATCH v2 3/4] mfd: cs42l43: Add support for the B variant

[Maciej Strozek]

Introducing CS42L43B codec, a variant of CS42L43 which can be driven by
the same driver.

Changes in CS42L43 driver specific for CS42L43B:
- Decimator 1 and 2 are dedicated to ADC, can't be selected for PDM
- Decimators 3 and 4 are connected to PDM1
- Added Decimator 5 and 6 for PDM2
- Supports SoundWire Clock Gearing
- Updated ROM requiring no patching
- Reduced RAM space
- Each ISRC has 4 decimators now

Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
---
Changes in v2:
 - Rework the mechanism to identify the new variant along with some
   error handling improvements.
 - Added some comments in cs42l43_readable_register() for clarity.
 - Add handling of the I2C path for the B variant
---
 drivers/mfd/cs42l43-i2c.c        |  7 ++-
 drivers/mfd/cs42l43-sdw.c        |  4 +-
 drivers/mfd/cs42l43.c            | 93 +++++++++++++++++++++++++++-----
 drivers/mfd/cs42l43.h            |  2 +-
 include/linux/mfd/cs42l43-regs.h | 76 ++++++++++++++++++++++++++
 include/linux/mfd/cs42l43.h      |  1 +
 6 files changed, 166 insertions(+), 17 deletions(-)

diff --git a/drivers/mfd/cs42l43-i2c.c b/drivers/mfd/cs42l43-i2c.c
index a2ab001a600a..0a0ab5e549a5 100644
--- a/drivers/mfd/cs42l43-i2c.c
+++ b/drivers/mfd/cs42l43-i2c.c
@@ -47,6 +47,7 @@ static int cs42l43_i2c_probe(struct i2c_client *i2c)
 	cs42l43->irq = i2c->irq;
 	/* A device on an I2C is always attached by definition. */
 	cs42l43->attached = true;
+	cs42l43->variant_id = (long)device_get_match_data(cs42l43->dev);

 	cs42l43->regmap = devm_regmap_init_i2c(i2c, &cs42l43_i2c_regmap);
 	if (IS_ERR(cs42l43->regmap))
@@ -58,7 +59,8 @@ static int cs42l43_i2c_probe(struct i2c_client *i2c)

 #if IS_ENABLED(CONFIG_OF)
 static const struct of_device_id cs42l43_of_match[] = {
-	{ .compatible = "cirrus,cs42l43", },
+	{ .compatible = "cirrus,cs42l43", .data = (void *)CS42L43_DEVID_VAL },
+	{ .compatible = "cirrus,cs42l43b", .data = (void *)CS42L43B_DEVID_VAL },
 	{}
 };
 MODULE_DEVICE_TABLE(of, cs42l43_of_match);
@@ -66,7 +68,8 @@ MODULE_DEVICE_TABLE(of, cs42l43_of_match);

 #if IS_ENABLED(CONFIG_ACPI)
 static const struct acpi_device_id cs42l43_acpi_match[] = {
-	{ "CSC4243", 0 },
+	{ "CSC4243", CS42L43_DEVID_VAL },
+	{ "CSC2A3B", CS42L43B_DEVID_VAL },
 	{}
 };
 MODULE_DEVICE_TABLE(acpi, cs42l43_acpi_match);
diff --git a/drivers/mfd/cs42l43-sdw.c b/drivers/mfd/cs42l43-sdw.c
index 023f7e1a30f8..4b11cf5de614 100644
--- a/drivers/mfd/cs42l43-sdw.c
+++ b/drivers/mfd/cs42l43-sdw.c
@@ -178,6 +178,7 @@ static int cs42l43_sdw_probe(struct sdw_slave *sdw, const struct sdw_device_id *

 	cs42l43->dev = dev;
 	cs42l43->sdw = sdw;
+	cs42l43->variant_id = (int)id->driver_data;

 	cs42l43->regmap = devm_regmap_init_sdw(sdw, &cs42l43_sdw_regmap);
 	if (IS_ERR(cs42l43->regmap))
@@ -188,7 +189,8 @@ static int cs42l43_sdw_probe(struct sdw_slave *sdw, const struct sdw_device_id *
 }

 static const struct sdw_device_id cs42l43_sdw_id[] = {
-	SDW_SLAVE_ENTRY(0x01FA, 0x4243, 0),
+	SDW_SLAVE_ENTRY(0x01FA, 0x4243, (void *) CS42L43_DEVID_VAL),
+	SDW_SLAVE_ENTRY(0x01FA, 0x2A3B, (void *) CS42L43B_DEVID_VAL),
 	{}
 };
 MODULE_DEVICE_TABLE(sdw, cs42l43_sdw_id);
diff --git a/drivers/mfd/cs42l43.c b/drivers/mfd/cs42l43.c
index 107cfb983fec..6b6b2bbe7e8f 100644
--- a/drivers/mfd/cs42l43.c
+++ b/drivers/mfd/cs42l43.c
@@ -115,9 +115,14 @@ const struct reg_default cs42l43_reg_default[CS42L43_N_DEFAULTS] = {
 	{ CS42L43_DECIM_HPF_WNF_CTRL2,			0x00000001 },
 	{ CS42L43_DECIM_HPF_WNF_CTRL3,			0x00000001 },
 	{ CS42L43_DECIM_HPF_WNF_CTRL4,			0x00000001 },
+	{ CS42L43B_DECIM_HPF_WNF_CTRL5,			0x00000001 },
+	{ CS42L43B_DECIM_HPF_WNF_CTRL6,			0x00000001 },
 	{ CS42L43_DMIC_PDM_CTRL,			0x00000000 },
 	{ CS42L43_DECIM_VOL_CTRL_CH1_CH2,		0x20122012 },
 	{ CS42L43_DECIM_VOL_CTRL_CH3_CH4,		0x20122012 },
+	{ CS42L43B_DECIM_VOL_CTRL_CH1_CH2,		0x20122012 },
+	{ CS42L43B_DECIM_VOL_CTRL_CH3_CH4,		0x20122012 },
+	{ CS42L43B_DECIM_VOL_CTRL_CH5_CH6,		0x20122012 },
 	{ CS42L43_INTP_VOLUME_CTRL1,			0x00000180 },
 	{ CS42L43_INTP_VOLUME_CTRL2,			0x00000180 },
 	{ CS42L43_AMP1_2_VOL_RAMP,			0x00000022 },
@@ -155,8 +160,12 @@ const struct reg_default cs42l43_reg_default[CS42L43_N_DEFAULTS] = {
 	{ CS42L43_SWIRE_DP2_CH2_INPUT,			0x00000000 },
 	{ CS42L43_SWIRE_DP3_CH1_INPUT,			0x00000000 },
 	{ CS42L43_SWIRE_DP3_CH2_INPUT,			0x00000000 },
+	{ CS42L43B_SWIRE_DP3_CH3_INPUT,			0x00000000 },
+	{ CS42L43B_SWIRE_DP3_CH4_INPUT,			0x00000000 },
 	{ CS42L43_SWIRE_DP4_CH1_INPUT,			0x00000000 },
 	{ CS42L43_SWIRE_DP4_CH2_INPUT,			0x00000000 },
+	{ CS42L43B_SWIRE_DP4_CH3_INPUT,			0x00000000 },
+	{ CS42L43B_SWIRE_DP4_CH4_INPUT,			0x00000000 },
 	{ CS42L43_ASRC_INT1_INPUT1,			0x00000000 },
 	{ CS42L43_ASRC_INT2_INPUT1,			0x00000000 },
 	{ CS42L43_ASRC_INT3_INPUT1,			0x00000000 },
@@ -169,10 +178,14 @@ const struct reg_default cs42l43_reg_default[CS42L43_N_DEFAULTS] = {
 	{ CS42L43_ISRC1INT2_INPUT1,			0x00000000 },
 	{ CS42L43_ISRC1DEC1_INPUT1,			0x00000000 },
 	{ CS42L43_ISRC1DEC2_INPUT1,			0x00000000 },
+	{ CS42L43B_ISRC1DEC3_INPUT1,			0x00000000 },
+	{ CS42L43B_ISRC1DEC4_INPUT1,			0x00000000 },
 	{ CS42L43_ISRC2INT1_INPUT1,			0x00000000 },
 	{ CS42L43_ISRC2INT2_INPUT1,			0x00000000 },
 	{ CS42L43_ISRC2DEC1_INPUT1,			0x00000000 },
 	{ CS42L43_ISRC2DEC2_INPUT1,			0x00000000 },
+	{ CS42L43B_ISRC2DEC3_INPUT1,			0x00000000 },
+	{ CS42L43B_ISRC2DEC4_INPUT1,			0x00000000 },
 	{ CS42L43_EQ1MIX_INPUT1,			0x00800000 },
 	{ CS42L43_EQ1MIX_INPUT2,			0x00800000 },
 	{ CS42L43_EQ1MIX_INPUT3,			0x00800000 },
@@ -269,6 +282,8 @@ EXPORT_SYMBOL_NS_GPL(cs42l43_reg_default, "MFD_CS42L43");

 bool cs42l43_readable_register(struct device *dev, unsigned int reg)
 {
+	struct cs42l43 *cs42l43 = dev_get_drvdata(dev);
+
 	switch (reg) {
 	case CS42L43_DEVID:
 	case CS42L43_REVID:
@@ -292,7 +307,6 @@ bool cs42l43_readable_register(struct device *dev, unsigned int reg)
 	case CS42L43_ADC_B_CTRL1 ...  CS42L43_ADC_B_CTRL2:
 	case CS42L43_DECIM_HPF_WNF_CTRL1 ... CS42L43_DECIM_HPF_WNF_CTRL4:
 	case CS42L43_DMIC_PDM_CTRL:
-	case CS42L43_DECIM_VOL_CTRL_CH1_CH2 ... CS42L43_DECIM_VOL_CTRL_CH3_CH4:
 	case CS42L43_INTP_VOLUME_CTRL1 ... CS42L43_INTP_VOLUME_CTRL2:
 	case CS42L43_AMP1_2_VOL_RAMP:
 	case CS42L43_ASP_CTRL:
@@ -387,8 +401,16 @@ bool cs42l43_readable_register(struct device *dev, unsigned int reg)
 	case CS42L43_BOOT_CONTROL:
 	case CS42L43_BLOCK_EN:
 	case CS42L43_SHUTTER_CONTROL:
-	case CS42L43_MCU_SW_REV ... CS42L43_MCU_RAM_MAX:
-		return true;
+	case CS42L43B_MCU_SW_REV ... CS42L43B_MCU_RAM_MAX:
+		return true; // registers present on all variants
+	case CS42L43_MCU_SW_REV ... CS42L43B_MCU_SW_REV - 1:
+	case CS42L43B_MCU_RAM_MAX + 1 ... CS42L43_MCU_RAM_MAX:
+	case CS42L43_DECIM_VOL_CTRL_CH1_CH2 ... CS42L43_DECIM_VOL_CTRL_CH3_CH4:
+		return cs42l43->variant_id == CS42L43_DEVID_VAL; // regs only in CS42L43 variant
+	case CS42L43B_DECIM_VOL_CTRL_CH1_CH2 ... CS42L43B_DECIM_HPF_WNF_CTRL6:
+	case CS42L43B_SWIRE_DP3_CH3_INPUT ... CS42L43B_SWIRE_DP4_CH4_INPUT:
+	case CS42L43B_ISRC1DEC3_INPUT1 ... CS42L43B_ISRC2DEC4_INPUT1:
+		return cs42l43->variant_id == CS42L43B_DEVID_VAL; // regs only in CS42L43B variant
 	default:
 		return false;
 	}
@@ -597,15 +619,27 @@ static int cs42l43_wait_for_attach(struct cs42l43 *cs42l43)
 static int cs42l43_mcu_stage_2_3(struct cs42l43 *cs42l43, bool shadow)
 {
 	unsigned int need_reg = CS42L43_NEED_CONFIGS;
+	unsigned int boot_reg;
 	unsigned int val;
 	int ret;

-	if (shadow)
-		need_reg = CS42L43_FW_SH_BOOT_CFG_NEED_CONFIGS;
+	switch (cs42l43->variant_id) {
+	case CS42L43_DEVID_VAL:
+		if (shadow)
+			need_reg = CS42L43_FW_SH_BOOT_CFG_NEED_CONFIGS;
+		boot_reg = CS42L43_BOOT_STATUS;
+		break;
+	case CS42L43B_DEVID_VAL:
+		need_reg = CS42L43B_NEED_CONFIGS;
+		boot_reg = CS42L43B_BOOT_STATUS;
+		break;
+	default:
+		return -EINVAL;
+	}

 	regmap_write(cs42l43->regmap, need_reg, 0);

-	ret = regmap_read_poll_timeout(cs42l43->regmap, CS42L43_BOOT_STATUS,
+	ret = regmap_read_poll_timeout(cs42l43->regmap, boot_reg,
 				       val, (val == CS42L43_MCU_BOOT_STAGE3),
 				       CS42L43_MCU_POLL_US, CS42L43_MCU_CMD_TIMEOUT_US);
 	if (ret) {
@@ -644,13 +678,25 @@ static int cs42l43_mcu_stage_3_2(struct cs42l43 *cs42l43)
  */
 static int cs42l43_mcu_disable(struct cs42l43 *cs42l43)
 {
-	unsigned int val;
+	unsigned int val, cfg_reg, ctrl_reg;
 	int ret;

-	regmap_write(cs42l43->regmap, CS42L43_FW_MISSION_CTRL_MM_MCU_CFG_REG,
-		     CS42L43_FW_MISSION_CTRL_MM_MCU_CFG_DISABLE_VAL);
-	regmap_write(cs42l43->regmap, CS42L43_FW_MISSION_CTRL_MM_CTRL_SELECTION,
-		     CS42L43_FW_MM_CTRL_MCU_SEL_MASK);
+	switch (cs42l43->variant_id) {
+	case CS42L43_DEVID_VAL:
+		cfg_reg = CS42L43_FW_MISSION_CTRL_MM_MCU_CFG_REG;
+		ctrl_reg = CS42L43_FW_MISSION_CTRL_MM_CTRL_SELECTION;
+		break;
+	case CS42L43B_DEVID_VAL:
+		cfg_reg = CS42L43B_FW_MISSION_CTRL_MM_MCU_CFG_REG;
+		ctrl_reg = CS42L43B_FW_MISSION_CTRL_MM_CTRL_SELECTION;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	regmap_write(cs42l43->regmap, cfg_reg, CS42L43_FW_MISSION_CTRL_MM_MCU_CFG_DISABLE_VAL);
+	regmap_write(cs42l43->regmap, ctrl_reg, CS42L43_FW_MM_CTRL_MCU_SEL_MASK);
+
 	regmap_write(cs42l43->regmap, CS42L43_MCU_SW_INTERRUPT, CS42L43_CONTROL_IND_MASK);
 	regmap_write(cs42l43->regmap, CS42L43_MCU_SW_INTERRUPT, 0);

@@ -740,18 +786,32 @@ static int cs42l43_mcu_update_step(struct cs42l43 *cs42l43)
 {
 	unsigned int mcu_rev, bios_rev, boot_status, secure_cfg;
 	bool patched, shadow;
+	int boot_status_reg, mcu_sw_rev_reg;
 	int ret;

+	switch (cs42l43->variant_id) {
+	case CS42L43_DEVID_VAL:
+		boot_status_reg = CS42L43_BOOT_STATUS;
+		mcu_sw_rev_reg = CS42L43_MCU_SW_REV;
+		break;
+	case CS42L43B_DEVID_VAL:
+		boot_status_reg = CS42L43B_BOOT_STATUS;
+		mcu_sw_rev_reg = CS42L43B_MCU_SW_REV;
+		break;
+	default:
+		return -EINVAL;
+	}
+
 	/* Clear any stale software interrupt bits. */
 	regmap_read(cs42l43->regmap, CS42L43_SOFT_INT, &mcu_rev);

-	ret = regmap_read(cs42l43->regmap, CS42L43_BOOT_STATUS, &boot_status);
+	ret = regmap_read(cs42l43->regmap, boot_status_reg, &boot_status);
 	if (ret) {
 		dev_err(cs42l43->dev, "Failed to read boot status: %d\n", ret);
 		return ret;
 	}

-	ret = regmap_read(cs42l43->regmap, CS42L43_MCU_SW_REV, &mcu_rev);
+	ret = regmap_read(cs42l43->regmap, mcu_sw_rev_reg, &mcu_rev);
 	if (ret) {
 		dev_err(cs42l43->dev, "Failed to read firmware revision: %d\n", ret);
 		return ret;
@@ -918,6 +978,13 @@ static void cs42l43_boot_work(struct work_struct *work)

 	switch (devid) {
 	case CS42L43_DEVID_VAL:
+	case CS42L43B_DEVID_VAL:
+		if (devid != cs42l43->variant_id) {
+			dev_err(cs42l43->dev,
+				"Device ID (0x%06x) does not match variant ID (0x%06x)\n",
+				devid, cs42l43->variant_id);
+			goto err;
+		}
 		break;
 	default:
 		dev_err(cs42l43->dev, "Unrecognised devid: 0x%06x\n", devid);
diff --git a/drivers/mfd/cs42l43.h b/drivers/mfd/cs42l43.h
index f3da783930f5..a0068f6572e2 100644
--- a/drivers/mfd/cs42l43.h
+++ b/drivers/mfd/cs42l43.h
@@ -9,7 +9,7 @@
 #ifndef CS42L43_CORE_INT_H
 #define CS42L43_CORE_INT_H

-#define CS42L43_N_DEFAULTS 176
+#define CS42L43_N_DEFAULTS 189

 struct dev_pm_ops;
 struct device;
diff --git a/include/linux/mfd/cs42l43-regs.h b/include/linux/mfd/cs42l43-regs.h
index c39a49269cb7..68831f113589 100644
--- a/include/linux/mfd/cs42l43-regs.h
+++ b/include/linux/mfd/cs42l43-regs.h
@@ -1181,4 +1181,80 @@
 /* CS42L43_FW_MISSION_CTRL_MM_MCU_CFG_REG */
 #define CS42L43_FW_MISSION_CTRL_MM_MCU_CFG_DISABLE_VAL		0xF05AA50F

+/* CS42L43B VARIANT REGISTERS */
+#define CS42L43B_DEVID_VAL					0x0042A43B
+
+#define CS42L43B_DECIM_VOL_CTRL_CH1_CH2				0x00008280
+#define CS42L43B_DECIM_VOL_CTRL_CH3_CH4				0x00008284
+
+#define CS42L43B_DECIM_VOL_CTRL_CH5_CH6				0x00008290
+#define CS42L43B_DECIM_VOL_CTRL_UPDATE				0x0000829C
+
+#define CS42L43B_DECIM_HPF_WNF_CTRL5				0x000082A0
+#define CS42L43B_DECIM_HPF_WNF_CTRL6				0x000082A4
+
+#define CS42L43B_SWIRE_DP3_CH3_INPUT				0x0000C320
+#define CS42L43B_SWIRE_DP3_CH4_INPUT				0x0000C330
+#define CS42L43B_SWIRE_DP4_CH3_INPUT				0x0000C340
+#define CS42L43B_SWIRE_DP4_CH4_INPUT				0x0000C350
+
+#define CS42L43B_ISRC1DEC3_INPUT1				0x0000C780
+#define CS42L43B_ISRC1DEC4_INPUT1				0x0000C790
+#define CS42L43B_ISRC2DEC3_INPUT1				0x0000C7A0
+#define CS42L43B_ISRC2DEC4_INPUT1				0x0000C7B0
+
+#define CS42L43B_FW_MISSION_CTRL_NEED_CONFIGS			0x00117E00
+#define CS42L43B_FW_MISSION_CTRL_HAVE_CONFIGS			0x00117E04
+#define CS42L43B_FW_MISSION_CTRL_PATCH_START_ADDR_REG		0x00117E08
+#define CS42L43B_FW_MISSION_CTRL_MM_CTRL_SELECTION		0x00117E0C
+#define CS42L43B_FW_MISSION_CTRL_MM_MCU_CFG_REG			0x00117E10
+
+#define CS42L43B_MCU_SW_REV					0x00117314
+#define CS42L43B_PATCH_START_ADDR				0x00117318
+#define CS42L43B_CONFIG_SELECTION				0x0011731C
+#define CS42L43B_NEED_CONFIGS					0x00117320
+#define CS42L43B_BOOT_STATUS					0x00117330
+
+#define CS42L43B_FW_MISSION_CTRL_NEED_CONFIGS			0x00117E00
+#define CS42L43B_FW_MISSION_CTRL_HAVE_CONFIGS			0x00117E04
+#define CS42L43B_FW_MISSION_CTRL_PATCH_START_ADDR_REG		0x00117E08
+#define CS42L43B_FW_MISSION_CTRL_MM_CTRL_SELECTION		0x00117E0C
+#define CS42L43B_FW_MISSION_CTRL_MM_MCU_CFG_REG			0x00117E10
+
+#define CS42L43B_MCU_RAM_MAX					0x00117FFF
+
+/* CS42L43B_DECIM_DECIM_VOL_CTRL_CH5_CH6 */
+#define CS42L43B_DECIM6_MUTE_MASK				0x80000000
+#define CS42L43B_DECIM6_MUTE_SHIFT				31
+#define CS42L43B_DECIM6_VOL_MASK				0x3FC00000
+#define CS42L43B_DECIM6_VOL_SHIFT				22
+#define CS42L43B_DECIM6_PATH1_VOL_FALL_RATE_MASK		0x00380000
+#define CS42L43B_DECIM6_PATH1_VOL_FALL_RATE_SHIFT		19
+#define CS42L43B_DECIM6_PATH1_VOL_RISE_RATE_MASK		0x00070000
+#define CS42L43B_DECIM6_PATH1_VOL_RISE_RATE_SHIFT		16
+#define CS42L43B_DECIM5_MUTE_MASK				0x00008000
+#define CS42L43B_DECIM5_MUTE_SHIFT				15
+#define CS42L43B_DECIM5_VOL_MASK				0x00003FC0
+#define CS42L43B_DECIM5_VOL_SHIFT				6
+#define CS42L43B_DECIM5_PATH1_VOL_FALL_RATE_MASK		0x00000038
+#define CS42L43B_DECIM5_PATH1_VOL_FALL_RATE_SHIFT		3
+#define CS42L43B_DECIM5_PATH1_VOL_RISE_RATE_MASK		0x00000007
+#define CS42L43B_DECIM5_PATH1_VOL_RISE_RATE_SHIFT		0
+
+/* CS42L43B_DECIM_VOL_CTRL_UPDATE */
+#define CS42L43B_DECIM6_PATH1_VOL_TRIG_MASK			0x00000800
+#define CS42L43B_DECIM6_PATH1_VOL_TRIG_SHIFT			11
+#define CS42L43B_DECIM5_PATH1_VOL_TRIG_MASK			0x00000100
+#define CS42L43B_DECIM5_PATH1_VOL_TRIG_SHIFT			8
+#define CS42L43B_DECIM4_VOL_UPDATE_MASK				0x00000020
+#define CS42L43B_DECIM4_VOL_UPDATE_SHIFT			5
+
+/* CS42L43_ISRC1_CTRL..CS42L43_ISRC2_CTRL */
+#define CS42L43B_ISRC_DEC4_EN_MASK				0x00000008
+#define CS42L43B_ISRC_DEC4_EN_SHIFT				3
+#define CS42L43B_ISRC_DEC4_EN_WIDTH				1
+#define CS42L43B_ISRC_DEC3_EN_MASK				0x00000004
+#define CS42L43B_ISRC_DEC3_EN_SHIFT				2
+#define CS42L43B_ISRC_DEC3_EN_WIDTH				1
+
 #endif /* CS42L43_CORE_REGS_H */
diff --git a/include/linux/mfd/cs42l43.h b/include/linux/mfd/cs42l43.h
index 2239d8585e78..8313f9e8c722 100644
--- a/include/linux/mfd/cs42l43.h
+++ b/include/linux/mfd/cs42l43.h
@@ -98,6 +98,7 @@ struct cs42l43 {
 	bool sdw_pll_active;
 	bool attached;
 	bool hw_lock;
+	int variant_id;
 };

 #endif /* CS42L43_CORE_EXT_H */
--
2.48.1

[PATCH v2 4/4] ASoC: cs42l43: Add support for the B variant

[Maciej Strozek]

Introducing CS42L43B codec, a variant of CS42L43 which can be driven by
the same driver.

Changes in CS42L43 driver specific for CS42L43B:
- Decimator 1 and 2 are dedicated to ADC, can't be selected for PDM
- Decimators 3 and 4 are connected to PDM1
- Added Decimator 5 and 6 for PDM2
- Supports SoundWire Clock Gearing
- Updated ROM requiring no patching
- Reduced RAM space
- Each ISRC has 4 decimators now

Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
---
Changes in v2:
 - Adjustments to variant identification following fixes from v2 mfd patch
---
 sound/soc/codecs/cs42l43.c | 756 ++++++++++++++++++++++++++++++-------
 sound/soc/codecs/cs42l43.h |   4 +-
 2 files changed, 625 insertions(+), 135 deletions(-)

diff --git a/sound/soc/codecs/cs42l43.c b/sound/soc/codecs/cs42l43.c
index fd02d8a57e0f..842d16e39de8 100644
--- a/sound/soc/codecs/cs42l43.c
+++ b/sound/soc/codecs/cs42l43.c
@@ -45,12 +45,25 @@ static SOC_VALUE_ENUM_SINGLE_DECL(cs42l43_##name##_enum, reg, \
 static const struct snd_kcontrol_new cs42l43_##name##_mux = \
 		SOC_DAPM_ENUM("Route", cs42l43_##name##_enum)

+#define CS42L43B_DECL_MUX(name, reg) \
+static SOC_VALUE_ENUM_SINGLE_DECL(cs42l43_##name##_enum, reg, \
+				  0, CS42L43_MIXER_SRC_MASK, \
+				  cs42l43b_mixer_texts, cs42l43b_mixer_values); \
+static const struct snd_kcontrol_new cs42l43_##name##_mux = \
+		SOC_DAPM_ENUM("Route", cs42l43_##name##_enum)
+
 #define CS42L43_DECL_MIXER(name, reg) \
 	CS42L43_DECL_MUX(name##_in1, reg); \
 	CS42L43_DECL_MUX(name##_in2, reg + 0x4); \
 	CS42L43_DECL_MUX(name##_in3, reg + 0x8); \
 	CS42L43_DECL_MUX(name##_in4, reg + 0xC)

+#define CS42L43B_DECL_MIXER(name, reg) \
+	CS42L43B_DECL_MUX(name##_in1, reg); \
+	CS42L43B_DECL_MUX(name##_in2, reg + 0x4); \
+	CS42L43B_DECL_MUX(name##_in3, reg + 0x8); \
+	CS42L43B_DECL_MUX(name##_in4, reg + 0xC)
+
 #define CS42L43_DAPM_MUX(name_str, name) \
 	SND_SOC_DAPM_MUX(name_str " Input", SND_SOC_NOPM, 0, 0, &cs42l43_##name##_mux)

@@ -99,11 +112,23 @@ static const struct snd_kcontrol_new cs42l43_##name##_mux = \
 	{ name_str,		"EQ1",			"EQ" }, \
 	{ name_str,		"EQ2",			"EQ" }

+#define CS42L43B_BASE_ROUTES(name_str) \
+	{ name_str,		"Decimator 5",		"Decimator 5" }, \
+	{ name_str,		"Decimator 6",		"Decimator 6" }, \
+	{ name_str,		"ISRC1 DEC3",		"ISRC1DEC3" }, \
+	{ name_str,		"ISRC1 DEC4",		"ISRC1DEC4" }, \
+	{ name_str,		"ISRC2 DEC3",		"ISRC2DEC3" }, \
+	{ name_str,		"ISRC2 DEC4",		"ISRC2DEC4" }
+
 #define CS42L43_MUX_ROUTES(name_str, widget) \
 	{ widget,		NULL,			name_str " Input" }, \
 	{ name_str " Input",	NULL,			"Mixer Core" }, \
 	CS42L43_BASE_ROUTES(name_str " Input")

+#define CS42L43B_MUX_ROUTES(name_str, widget) \
+	CS42L43_MUX_ROUTES(name_str, widget), \
+	CS42L43B_BASE_ROUTES(name_str " Input")
+
 #define CS42L43_MIXER_ROUTES(name_str, widget) \
 	{ name_str " Mixer",	NULL,			name_str " Input 1" }, \
 	{ name_str " Mixer",	NULL,			name_str " Input 2" }, \
@@ -116,6 +141,13 @@ static const struct snd_kcontrol_new cs42l43_##name##_mux = \
 	CS42L43_BASE_ROUTES(name_str " Input 3"), \
 	CS42L43_BASE_ROUTES(name_str " Input 4")

+#define CS42L43B_MIXER_ROUTES(name_str, widget) \
+	CS42L43_MIXER_ROUTES(name_str, widget), \
+	CS42L43B_BASE_ROUTES(name_str " Input 1"), \
+	CS42L43B_BASE_ROUTES(name_str " Input 2"), \
+	CS42L43B_BASE_ROUTES(name_str " Input 3"), \
+	CS42L43B_BASE_ROUTES(name_str " Input 4")
+
 #define CS42L43_MIXER_VOLUMES(name_str, base) \
 	SOC_SINGLE_RANGE_TLV(name_str " Input 1 Volume", base, \
 			     CS42L43_MIXER_VOL_SHIFT, 0x20, 0x50, 0, \
@@ -300,6 +332,7 @@ static int cs42l43_startup(struct snd_pcm_substream *substream, struct snd_soc_d
 	struct snd_soc_component *component = dai->component;
 	struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component);
 	struct cs42l43 *cs42l43 = priv->core;
+	int ret;
 	int provider = !dai->id || !!regmap_test_bits(cs42l43->regmap,
 						      CS42L43_ASP_CLK_CONFIG2,
 						      CS42L43_ASP_MASTER_MODE_MASK);
@@ -309,6 +342,14 @@ static int cs42l43_startup(struct snd_pcm_substream *substream, struct snd_soc_d
 	else
 		priv->constraint.mask = CS42L43_CONSUMER_RATE_MASK;

+	if (cs42l43->variant_id == CS42L43_DEVID_VAL && (dai->id == 3 || dai->id == 4)) {
+		ret = snd_pcm_hw_constraint_minmax(substream->runtime,
+						   SNDRV_PCM_HW_PARAM_CHANNELS,
+						   1, 2);
+		if (ret < 0)
+			return ret;
+	}
+
 	return snd_pcm_hw_constraint_list(substream->runtime, 0,
 					  SNDRV_PCM_HW_PARAM_RATE,
 					  &priv->constraint);
@@ -590,12 +631,25 @@ static int cs42l43_dai_probe(struct snd_soc_dai *dai)
 		"Decimator 2 Switch",
 		"Decimator 3 Switch",
 		"Decimator 4 Switch",
+		"Decimator 5 Switch",
+		"Decimator 6 Switch",
 	};
-	int i;
+	int control_size, i;

 	static_assert(ARRAY_SIZE(controls) == ARRAY_SIZE(priv->kctl));

-	for (i = 0; i < ARRAY_SIZE(controls); i++) {
+	switch (priv->core->variant_id) {
+	case CS42L43_DEVID_VAL:
+		control_size = ARRAY_SIZE(controls) - 2; // ignore Decimator 5 and 6
+		break;
+	case CS42L43B_DEVID_VAL:
+		control_size = ARRAY_SIZE(controls);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	for (i = 0; i < control_size; i++) {
 		if (priv->kctl[i])
 			continue;

@@ -703,7 +757,7 @@ static struct snd_soc_dai_driver cs42l43_dais[] = {
 		.capture = {
 			.stream_name	= "DP3 Capture",
 			.channels_min	= 1,
-			.channels_max	= 2,
+			.channels_max	= 4,
 			.rates		= SNDRV_PCM_RATE_KNOT,
 			.formats	= CS42L43_SDW_FORMATS,
 		},
@@ -715,7 +769,7 @@ static struct snd_soc_dai_driver cs42l43_dais[] = {
 		.capture = {
 			.stream_name	= "DP4 Capture",
 			.channels_min	= 1,
-			.channels_max	= 2,
+			.channels_max	= 4,
 			.rates		= SNDRV_PCM_RATE_KNOT,
 			.formats	= CS42L43_SDW_FORMATS,
 		},
@@ -808,6 +862,10 @@ static SOC_ENUM_SINGLE_DECL(cs42l43_dec3_wnf_corner, CS42L43_DECIM_HPF_WNF_CTRL3
 			    CS42L43_DECIM_WNF_CF_SHIFT, cs42l43_wnf_corner_text);
 static SOC_ENUM_SINGLE_DECL(cs42l43_dec4_wnf_corner, CS42L43_DECIM_HPF_WNF_CTRL4,
 			    CS42L43_DECIM_WNF_CF_SHIFT, cs42l43_wnf_corner_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec5_wnf_corner, CS42L43B_DECIM_HPF_WNF_CTRL5,
+			    CS42L43_DECIM_WNF_CF_SHIFT, cs42l43_wnf_corner_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec6_wnf_corner, CS42L43B_DECIM_HPF_WNF_CTRL6,
+			    CS42L43_DECIM_WNF_CF_SHIFT, cs42l43_wnf_corner_text);

 static const char * const cs42l43_hpf_corner_text[] = {
 	"3Hz", "12Hz", "48Hz", "96Hz",
@@ -821,6 +879,10 @@ static SOC_ENUM_SINGLE_DECL(cs42l43_dec3_hpf_corner, CS42L43_DECIM_HPF_WNF_CTRL3
 			    CS42L43_DECIM_HPF_CF_SHIFT, cs42l43_hpf_corner_text);
 static SOC_ENUM_SINGLE_DECL(cs42l43_dec4_hpf_corner, CS42L43_DECIM_HPF_WNF_CTRL4,
 			    CS42L43_DECIM_HPF_CF_SHIFT, cs42l43_hpf_corner_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec5_hpf_corner, CS42L43B_DECIM_HPF_WNF_CTRL5,
+			    CS42L43_DECIM_HPF_CF_SHIFT, cs42l43_hpf_corner_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec6_hpf_corner, CS42L43B_DECIM_HPF_WNF_CTRL6,
+			    CS42L43_DECIM_HPF_CF_SHIFT, cs42l43_hpf_corner_text);

 static SOC_ENUM_SINGLE_DECL(cs42l43_dec1_ramp_up, CS42L43_DECIM_VOL_CTRL_CH1_CH2,
 			    CS42L43_DECIM1_VI_RAMP_SHIFT, cs42l43_ramp_text);
@@ -839,6 +901,31 @@ static SOC_ENUM_SINGLE_DECL(cs42l43_dec4_ramp_up, CS42L43_DECIM_VOL_CTRL_CH3_CH4
 static SOC_ENUM_SINGLE_DECL(cs42l43_dec4_ramp_down, CS42L43_DECIM_VOL_CTRL_CH3_CH4,
 			    CS42L43_DECIM4_VD_RAMP_SHIFT, cs42l43_ramp_text);

+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec1_ramp_up, CS42L43B_DECIM_VOL_CTRL_CH1_CH2,
+			    CS42L43_DECIM1_VI_RAMP_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec1_ramp_down, CS42L43B_DECIM_VOL_CTRL_CH1_CH2,
+			    CS42L43_DECIM1_VD_RAMP_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec2_ramp_up, CS42L43B_DECIM_VOL_CTRL_CH1_CH2,
+			    CS42L43_DECIM2_VI_RAMP_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec2_ramp_down, CS42L43B_DECIM_VOL_CTRL_CH1_CH2,
+			    CS42L43_DECIM2_VD_RAMP_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec3_ramp_up, CS42L43B_DECIM_VOL_CTRL_CH3_CH4,
+			    CS42L43_DECIM3_VI_RAMP_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec3_ramp_down, CS42L43B_DECIM_VOL_CTRL_CH3_CH4,
+			    CS42L43_DECIM3_VD_RAMP_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec4_ramp_up, CS42L43B_DECIM_VOL_CTRL_CH3_CH4,
+			    CS42L43_DECIM4_VI_RAMP_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec4_ramp_down, CS42L43B_DECIM_VOL_CTRL_CH3_CH4,
+			    CS42L43_DECIM4_VD_RAMP_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec5_ramp_up, CS42L43B_DECIM_VOL_CTRL_CH5_CH6,
+			    CS42L43B_DECIM5_PATH1_VOL_RISE_RATE_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec5_ramp_down, CS42L43B_DECIM_VOL_CTRL_CH5_CH6,
+			    CS42L43B_DECIM5_PATH1_VOL_FALL_RATE_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec6_ramp_up, CS42L43B_DECIM_VOL_CTRL_CH5_CH6,
+			    CS42L43B_DECIM6_PATH1_VOL_RISE_RATE_SHIFT, cs42l43_ramp_text);
+static SOC_ENUM_SINGLE_DECL(cs42l43b_dec6_ramp_down, CS42L43B_DECIM_VOL_CTRL_CH5_CH6,
+			    CS42L43B_DECIM6_PATH1_VOL_FALL_RATE_SHIFT, cs42l43_ramp_text);
+
 static DECLARE_TLV_DB_SCALE(cs42l43_speaker_tlv, -6400, 50, 0);

 static SOC_ENUM_SINGLE_DECL(cs42l43_speaker_ramp_up, CS42L43_AMP1_2_VOL_RAMP,
@@ -898,6 +985,37 @@ static const unsigned int cs42l43_mixer_values[] = {
 	0x58, 0x59, // EQ1, 2
 };

+static const char * const cs42l43b_mixer_texts[] = {
+	"None",
+	"Tone Generator 1", "Tone Generator 2",
+	"Decimator 1", "Decimator 2", "Decimator 3", "Decimator 4", "Decimator 5", "Decimator 6",
+	"ASPRX1", "ASPRX2", "ASPRX3", "ASPRX4", "ASPRX5", "ASPRX6",
+	"DP5RX1", "DP5RX2", "DP6RX1", "DP6RX2", "DP7RX1", "DP7RX2",
+	"ASRC INT1", "ASRC INT2", "ASRC INT3", "ASRC INT4",
+	"ASRC DEC1", "ASRC DEC2", "ASRC DEC3", "ASRC DEC4",
+	"ISRC1 INT1", "ISRC1 INT2",
+	"ISRC1 DEC1", "ISRC1 DEC2", "ISRC1 DEC3", "ISRC1 DEC4",
+	"ISRC2 INT1", "ISRC2 INT2",
+	"ISRC2 DEC1", "ISRC2 DEC2", "ISRC2 DEC3", "ISRC2 DEC4",
+	"EQ1", "EQ2",
+};
+
+static const unsigned int cs42l43b_mixer_values[] = {
+	0x00, // None
+	0x04, 0x05, // Tone Generator 1, 2
+	0x10, 0x11, 0x80, 0x81, 0x12, 0x13, // Decimator 1, 2, 3, 4, 5, 6
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, // ASPRX1,2,3,4,5,6
+	0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, // DP5, 6, 7RX1, 2
+	0x40, 0x41, 0x42, 0x43, // ASRC INT1, 2, 3, 4
+	0x44, 0x45, 0x46, 0x47, // ASRC DEC1, 2, 3, 4
+	0x50, 0x51, // ISRC1 INT1, 2
+	0x52, 0x53, 0x78, 0x79, // ISRC1 DEC1, 2, 3, 4
+	0x54, 0x55, // ISRC2 INT1, 2
+	0x56, 0x57, 0x7A, 0x7B, // ISRC2 DEC1, 2, 3, 4
+	0x58, 0x59, // EQ1, 2
+};
+
+/* A variant */
 CS42L43_DECL_MUX(asptx1, CS42L43_ASPTX1_INPUT);
 CS42L43_DECL_MUX(asptx2, CS42L43_ASPTX2_INPUT);
 CS42L43_DECL_MUX(asptx3, CS42L43_ASPTX3_INPUT);
@@ -946,6 +1064,63 @@ CS42L43_DECL_MIXER(amp2, CS42L43_AMP2MIX_INPUT1);
 CS42L43_DECL_MIXER(amp3, CS42L43_AMP3MIX_INPUT1);
 CS42L43_DECL_MIXER(amp4, CS42L43_AMP4MIX_INPUT1);

+/* B variant */
+CS42L43B_DECL_MUX(b_asptx1, CS42L43_ASPTX1_INPUT);
+CS42L43B_DECL_MUX(b_asptx2, CS42L43_ASPTX2_INPUT);
+CS42L43B_DECL_MUX(b_asptx3, CS42L43_ASPTX3_INPUT);
+CS42L43B_DECL_MUX(b_asptx4, CS42L43_ASPTX4_INPUT);
+CS42L43B_DECL_MUX(b_asptx5, CS42L43_ASPTX5_INPUT);
+CS42L43B_DECL_MUX(b_asptx6, CS42L43_ASPTX6_INPUT);
+
+CS42L43B_DECL_MUX(b_dp1tx1, CS42L43_SWIRE_DP1_CH1_INPUT);
+CS42L43B_DECL_MUX(b_dp1tx2, CS42L43_SWIRE_DP1_CH2_INPUT);
+CS42L43B_DECL_MUX(b_dp1tx3, CS42L43_SWIRE_DP1_CH3_INPUT);
+CS42L43B_DECL_MUX(b_dp1tx4, CS42L43_SWIRE_DP1_CH4_INPUT);
+CS42L43B_DECL_MUX(b_dp2tx1, CS42L43_SWIRE_DP2_CH1_INPUT);
+CS42L43B_DECL_MUX(b_dp2tx2, CS42L43_SWIRE_DP2_CH2_INPUT);
+CS42L43B_DECL_MUX(b_dp3tx1, CS42L43_SWIRE_DP3_CH1_INPUT);
+CS42L43B_DECL_MUX(b_dp3tx2, CS42L43_SWIRE_DP3_CH2_INPUT);
+CS42L43B_DECL_MUX(b_dp3tx3, CS42L43B_SWIRE_DP3_CH3_INPUT);
+CS42L43B_DECL_MUX(b_dp3tx4, CS42L43B_SWIRE_DP3_CH4_INPUT);
+CS42L43B_DECL_MUX(b_dp4tx1, CS42L43_SWIRE_DP4_CH1_INPUT);
+CS42L43B_DECL_MUX(b_dp4tx2, CS42L43_SWIRE_DP4_CH2_INPUT);
+CS42L43B_DECL_MUX(b_dp4tx3, CS42L43B_SWIRE_DP4_CH3_INPUT);
+CS42L43B_DECL_MUX(b_dp4tx4, CS42L43B_SWIRE_DP4_CH4_INPUT);
+
+CS42L43B_DECL_MUX(b_asrcint1, CS42L43_ASRC_INT1_INPUT1);
+CS42L43B_DECL_MUX(b_asrcint2, CS42L43_ASRC_INT2_INPUT1);
+CS42L43B_DECL_MUX(b_asrcint3, CS42L43_ASRC_INT3_INPUT1);
+CS42L43B_DECL_MUX(b_asrcint4, CS42L43_ASRC_INT4_INPUT1);
+CS42L43B_DECL_MUX(b_asrcdec1, CS42L43_ASRC_DEC1_INPUT1);
+CS42L43B_DECL_MUX(b_asrcdec2, CS42L43_ASRC_DEC2_INPUT1);
+CS42L43B_DECL_MUX(b_asrcdec3, CS42L43_ASRC_DEC3_INPUT1);
+CS42L43B_DECL_MUX(b_asrcdec4, CS42L43_ASRC_DEC4_INPUT1);
+
+CS42L43B_DECL_MUX(b_isrc1int1, CS42L43_ISRC1INT1_INPUT1);
+CS42L43B_DECL_MUX(b_isrc1int2, CS42L43_ISRC1INT2_INPUT1);
+CS42L43B_DECL_MUX(b_isrc1dec1, CS42L43_ISRC1DEC1_INPUT1);
+CS42L43B_DECL_MUX(b_isrc1dec2, CS42L43_ISRC1DEC2_INPUT1);
+CS42L43B_DECL_MUX(b_isrc1dec3, CS42L43B_ISRC1DEC3_INPUT1);
+CS42L43B_DECL_MUX(b_isrc1dec4, CS42L43B_ISRC1DEC4_INPUT1);
+CS42L43B_DECL_MUX(b_isrc2int1, CS42L43_ISRC2INT1_INPUT1);
+CS42L43B_DECL_MUX(b_isrc2int2, CS42L43_ISRC2INT2_INPUT1);
+CS42L43B_DECL_MUX(b_isrc2dec1, CS42L43_ISRC2DEC1_INPUT1);
+CS42L43B_DECL_MUX(b_isrc2dec2, CS42L43_ISRC2DEC2_INPUT1);
+CS42L43B_DECL_MUX(b_isrc2dec3, CS42L43B_ISRC2DEC3_INPUT1);
+CS42L43B_DECL_MUX(b_isrc2dec4, CS42L43B_ISRC2DEC4_INPUT1);
+
+CS42L43B_DECL_MUX(b_spdif1, CS42L43_SPDIF1_INPUT1);
+CS42L43B_DECL_MUX(b_spdif2, CS42L43_SPDIF2_INPUT1);
+
+CS42L43B_DECL_MIXER(b_eq1, CS42L43_EQ1MIX_INPUT1);
+CS42L43B_DECL_MIXER(b_eq2, CS42L43_EQ2MIX_INPUT1);
+
+CS42L43B_DECL_MIXER(b_amp1, CS42L43_AMP1MIX_INPUT1);
+CS42L43B_DECL_MIXER(b_amp2, CS42L43_AMP2MIX_INPUT1);
+
+CS42L43B_DECL_MIXER(b_amp3, CS42L43_AMP3MIX_INPUT1);
+CS42L43B_DECL_MIXER(b_amp4, CS42L43_AMP4MIX_INPUT1);
+
 static int cs42l43_dapm_get_volsw(struct snd_kcontrol *kcontrol,
 				  struct snd_ctl_elem_value *ucontrol)
 {
@@ -1174,44 +1349,6 @@ static const struct snd_kcontrol_new cs42l43_controls[] = {
 	SOC_ENUM("Decimator 3 HPF Corner Frequency", cs42l43_dec3_hpf_corner),
 	SOC_ENUM("Decimator 4 HPF Corner Frequency", cs42l43_dec4_hpf_corner),

-	SOC_SINGLE_TLV("Decimator 1 Volume", CS42L43_DECIM_VOL_CTRL_CH1_CH2,
-		       CS42L43_DECIM1_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
-	SOC_SINGLE_EXT("Decimator 1 Switch", CS42L43_DECIM_VOL_CTRL_CH1_CH2,
-		       CS42L43_DECIM1_MUTE_SHIFT, 1, 1,
-		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
-	SOC_SINGLE_TLV("Decimator 2 Volume", CS42L43_DECIM_VOL_CTRL_CH1_CH2,
-		       CS42L43_DECIM2_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
-	SOC_SINGLE_EXT("Decimator 2 Switch", CS42L43_DECIM_VOL_CTRL_CH1_CH2,
-		       CS42L43_DECIM2_MUTE_SHIFT, 1, 1,
-		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
-	SOC_SINGLE_TLV("Decimator 3 Volume", CS42L43_DECIM_VOL_CTRL_CH3_CH4,
-		       CS42L43_DECIM3_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
-	SOC_SINGLE_EXT("Decimator 3 Switch", CS42L43_DECIM_VOL_CTRL_CH3_CH4,
-		       CS42L43_DECIM3_MUTE_SHIFT, 1, 1,
-		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
-	SOC_SINGLE_TLV("Decimator 4 Volume", CS42L43_DECIM_VOL_CTRL_CH3_CH4,
-		       CS42L43_DECIM4_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
-	SOC_SINGLE_EXT("Decimator 4 Switch", CS42L43_DECIM_VOL_CTRL_CH3_CH4,
-		       CS42L43_DECIM4_MUTE_SHIFT, 1, 1,
-		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
-
-	SOC_ENUM_EXT("Decimator 1 Ramp Up", cs42l43_dec1_ramp_up,
-		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
-	SOC_ENUM_EXT("Decimator 1 Ramp Down", cs42l43_dec1_ramp_down,
-		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
-	SOC_ENUM_EXT("Decimator 2 Ramp Up", cs42l43_dec2_ramp_up,
-		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
-	SOC_ENUM_EXT("Decimator 2 Ramp Down", cs42l43_dec2_ramp_down,
-		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
-	SOC_ENUM_EXT("Decimator 3 Ramp Up", cs42l43_dec3_ramp_up,
-		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
-	SOC_ENUM_EXT("Decimator 3 Ramp Down", cs42l43_dec3_ramp_down,
-		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
-	SOC_ENUM_EXT("Decimator 4 Ramp Up", cs42l43_dec4_ramp_up,
-		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
-	SOC_ENUM_EXT("Decimator 4 Ramp Down", cs42l43_dec4_ramp_down,
-		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
-
 	SOC_DOUBLE_R_EXT("Speaker Digital Switch",
 			 CS42L43_INTP_VOLUME_CTRL1, CS42L43_INTP_VOLUME_CTRL2,
 			 CS42L43_AMP_MUTE_SHIFT, 1, 1,
@@ -1601,35 +1738,81 @@ static int cs42l43_mic_ev(struct snd_soc_dapm_widget *w,
 	unsigned int *val;
 	int ret;

-	switch (w->shift) {
-	case CS42L43_ADC1_EN_SHIFT:
-	case CS42L43_PDM1_DIN_L_EN_SHIFT:
-		reg = CS42L43_DECIM_VOL_CTRL_CH1_CH2;
-		ramp = CS42L43_DECIM1_VD_RAMP_MASK;
-		mute = CS42L43_DECIM1_MUTE_MASK;
-		val = &priv->decim_cache[0];
-		break;
-	case CS42L43_ADC2_EN_SHIFT:
-	case CS42L43_PDM1_DIN_R_EN_SHIFT:
-		reg = CS42L43_DECIM_VOL_CTRL_CH1_CH2;
-		ramp = CS42L43_DECIM2_VD_RAMP_MASK;
-		mute = CS42L43_DECIM2_MUTE_MASK;
-		val = &priv->decim_cache[1];
-		break;
-	case CS42L43_PDM2_DIN_L_EN_SHIFT:
-		reg = CS42L43_DECIM_VOL_CTRL_CH3_CH4;
-		ramp  = CS42L43_DECIM3_VD_RAMP_MASK;
-		mute = CS42L43_DECIM3_MUTE_MASK;
-		val = &priv->decim_cache[2];
-		break;
-	case CS42L43_PDM2_DIN_R_EN_SHIFT:
-		reg = CS42L43_DECIM_VOL_CTRL_CH3_CH4;
-		ramp = CS42L43_DECIM4_VD_RAMP_MASK;
-		mute = CS42L43_DECIM4_MUTE_MASK;
-		val = &priv->decim_cache[3];
-		break;
-	default:
-		dev_err(priv->dev, "Invalid microphone shift: %d\n", w->shift);
+	if (cs42l43->variant_id == CS42L43_DEVID_VAL) {
+		switch (w->shift) {
+		case CS42L43_ADC1_EN_SHIFT:
+		case CS42L43_PDM1_DIN_L_EN_SHIFT:
+			reg = CS42L43_DECIM_VOL_CTRL_CH1_CH2;
+			ramp = CS42L43_DECIM1_VD_RAMP_MASK;
+			mute = CS42L43_DECIM1_MUTE_MASK;
+			val = &priv->decim_cache[0];
+			break;
+		case CS42L43_ADC2_EN_SHIFT:
+		case CS42L43_PDM1_DIN_R_EN_SHIFT:
+			reg = CS42L43_DECIM_VOL_CTRL_CH1_CH2;
+			ramp = CS42L43_DECIM2_VD_RAMP_MASK;
+			mute = CS42L43_DECIM2_MUTE_MASK;
+			val = &priv->decim_cache[1];
+			break;
+		case CS42L43_PDM2_DIN_L_EN_SHIFT:
+			reg = CS42L43_DECIM_VOL_CTRL_CH3_CH4;
+			ramp  = CS42L43_DECIM3_VD_RAMP_MASK;
+			mute = CS42L43_DECIM3_MUTE_MASK;
+			val = &priv->decim_cache[2];
+			break;
+		case CS42L43_PDM2_DIN_R_EN_SHIFT:
+			reg = CS42L43_DECIM_VOL_CTRL_CH3_CH4;
+			ramp = CS42L43_DECIM4_VD_RAMP_MASK;
+			mute = CS42L43_DECIM4_MUTE_MASK;
+			val = &priv->decim_cache[3];
+			break;
+		default:
+			dev_err(priv->dev, "Invalid microphone shift: %d\n", w->shift);
+			return -EINVAL;
+		}
+	} else if (cs42l43->variant_id == CS42L43B_DEVID_VAL) {
+		switch (w->shift) {
+		case CS42L43_ADC1_EN_SHIFT:
+			reg = CS42L43B_DECIM_VOL_CTRL_CH1_CH2;
+			ramp = CS42L43_DECIM1_VD_RAMP_MASK;
+			mute = CS42L43_DECIM1_MUTE_MASK;
+			val = &priv->decim_cache[0];
+			break;
+		case CS42L43_ADC2_EN_SHIFT:
+			reg = CS42L43B_DECIM_VOL_CTRL_CH1_CH2;
+			ramp = CS42L43_DECIM2_VD_RAMP_MASK;
+			mute = CS42L43_DECIM2_MUTE_MASK;
+			val = &priv->decim_cache[1];
+			break;
+		case CS42L43_PDM1_DIN_L_EN_SHIFT:
+			reg = CS42L43B_DECIM_VOL_CTRL_CH3_CH4;
+			ramp  = CS42L43_DECIM3_VD_RAMP_MASK;
+			mute = CS42L43_DECIM3_MUTE_MASK;
+			val = &priv->decim_cache[2];
+			break;
+		case CS42L43_PDM1_DIN_R_EN_SHIFT:
+			reg = CS42L43B_DECIM_VOL_CTRL_CH3_CH4;
+			ramp = CS42L43_DECIM4_VD_RAMP_MASK;
+			mute = CS42L43_DECIM4_MUTE_MASK;
+			val = &priv->decim_cache[3];
+			break;
+		case CS42L43_PDM2_DIN_L_EN_SHIFT:
+			reg = CS42L43B_DECIM_VOL_CTRL_CH5_CH6;
+			ramp  = CS42L43B_DECIM5_PATH1_VOL_FALL_RATE_MASK;
+			mute = CS42L43B_DECIM5_MUTE_MASK;
+			val = &priv->decim_cache[4];
+			break;
+		case CS42L43_PDM2_DIN_R_EN_SHIFT:
+			reg = CS42L43B_DECIM_VOL_CTRL_CH5_CH6;
+			ramp = CS42L43B_DECIM6_PATH1_VOL_FALL_RATE_MASK;
+			mute = CS42L43B_DECIM6_MUTE_MASK;
+			val = &priv->decim_cache[5];
+			break;
+		default:
+			dev_err(priv->dev, "Invalid microphone shift: %d\n", w->shift);
+			return -EINVAL;
+		}
+	} else {
 		return -EINVAL;
 	}

@@ -1722,11 +1905,6 @@ static const struct snd_soc_dapm_widget cs42l43_widgets[] = {
 			   0, NULL, 0, cs42l43_mic_ev,
 			   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),

-	SND_SOC_DAPM_MUX("Decimator 1 Mode", SND_SOC_NOPM, 0, 0,
-			 &cs42l43_dec_mode_ctl[0]),
-	SND_SOC_DAPM_MUX("Decimator 2 Mode", SND_SOC_NOPM, 0, 0,
-			 &cs42l43_dec_mode_ctl[1]),
-
 	SND_SOC_DAPM_PGA("Decimator 1", SND_SOC_NOPM, 0, 0, NULL, 0),
 	SND_SOC_DAPM_PGA("Decimator 2", SND_SOC_NOPM, 0, 0, NULL, 0),
 	SND_SOC_DAPM_PGA("Decimator 3", SND_SOC_NOPM, 0, 0, NULL, 0),
@@ -1871,53 +2049,6 @@ static const struct snd_soc_dapm_widget cs42l43_widgets[] = {

 	SND_SOC_DAPM_SUPPLY("Mixer Core", CS42L43_BLOCK_EN6, CS42L43_MIXER_EN_SHIFT,
 			    0, NULL, 0),
-	CS42L43_DAPM_MUX("ASPTX1", asptx1),
-	CS42L43_DAPM_MUX("ASPTX2", asptx2),
-	CS42L43_DAPM_MUX("ASPTX3", asptx3),
-	CS42L43_DAPM_MUX("ASPTX4", asptx4),
-	CS42L43_DAPM_MUX("ASPTX5", asptx5),
-	CS42L43_DAPM_MUX("ASPTX6", asptx6),
-
-	CS42L43_DAPM_MUX("DP1TX1", dp1tx1),
-	CS42L43_DAPM_MUX("DP1TX2", dp1tx2),
-	CS42L43_DAPM_MUX("DP1TX3", dp1tx3),
-	CS42L43_DAPM_MUX("DP1TX4", dp1tx4),
-	CS42L43_DAPM_MUX("DP2TX1", dp2tx1),
-	CS42L43_DAPM_MUX("DP2TX2", dp2tx2),
-	CS42L43_DAPM_MUX("DP3TX1", dp3tx1),
-	CS42L43_DAPM_MUX("DP3TX2", dp3tx2),
-	CS42L43_DAPM_MUX("DP4TX1", dp4tx1),
-	CS42L43_DAPM_MUX("DP4TX2", dp4tx2),
-
-	CS42L43_DAPM_MUX("ASRC INT1", asrcint1),
-	CS42L43_DAPM_MUX("ASRC INT2", asrcint2),
-	CS42L43_DAPM_MUX("ASRC INT3", asrcint3),
-	CS42L43_DAPM_MUX("ASRC INT4", asrcint4),
-	CS42L43_DAPM_MUX("ASRC DEC1", asrcdec1),
-	CS42L43_DAPM_MUX("ASRC DEC2", asrcdec2),
-	CS42L43_DAPM_MUX("ASRC DEC3", asrcdec3),
-	CS42L43_DAPM_MUX("ASRC DEC4", asrcdec4),
-
-	CS42L43_DAPM_MUX("ISRC1INT1", isrc1int1),
-	CS42L43_DAPM_MUX("ISRC1INT2", isrc1int2),
-	CS42L43_DAPM_MUX("ISRC1DEC1", isrc1dec1),
-	CS42L43_DAPM_MUX("ISRC1DEC2", isrc1dec2),
-	CS42L43_DAPM_MUX("ISRC2INT1", isrc2int1),
-	CS42L43_DAPM_MUX("ISRC2INT2", isrc2int2),
-	CS42L43_DAPM_MUX("ISRC2DEC1", isrc2dec1),
-	CS42L43_DAPM_MUX("ISRC2DEC2", isrc2dec2),
-
-	CS42L43_DAPM_MUX("SPDIF1", spdif1),
-	CS42L43_DAPM_MUX("SPDIF2", spdif2),
-
-	CS42L43_DAPM_MIXER("EQ1", eq1),
-	CS42L43_DAPM_MIXER("EQ2", eq2),
-
-	CS42L43_DAPM_MIXER("Speaker L", amp1),
-	CS42L43_DAPM_MIXER("Speaker R", amp2),
-
-	CS42L43_DAPM_MIXER("Headphone L", amp3),
-	CS42L43_DAPM_MIXER("Headphone R", amp4),
 };

 static const struct snd_soc_dapm_route cs42l43_routes[] = {
@@ -1963,16 +2094,6 @@ static const struct snd_soc_dapm_route cs42l43_routes[] = {
 	{ "PDM2L",		NULL,	"PDM2_DIN" },
 	{ "PDM2R",		NULL,	"PDM2_DIN" },

-	{ "Decimator 1 Mode",	"PDM",	"PDM1L" },
-	{ "Decimator 1 Mode",	"ADC",	"ADC1" },
-	{ "Decimator 2 Mode",	"PDM",	"PDM1R" },
-	{ "Decimator 2 Mode",	"ADC",	"ADC2" },
-
-	{ "Decimator 1",	NULL,	"Decimator 1 Mode" },
-	{ "Decimator 2",	NULL,	"Decimator 2 Mode" },
-	{ "Decimator 3",	NULL,	"PDM2L" },
-	{ "Decimator 4",	NULL,	"PDM2R" },
-
 	{ "ASP Capture",	NULL,	"ASPTX1" },
 	{ "ASP Capture",	NULL,	"ASPTX2" },
 	{ "ASP Capture",	NULL,	"ASPTX3" },
@@ -2060,6 +2181,261 @@ static const struct snd_soc_dapm_route cs42l43_routes[] = {
 	{ "ASRC_DEC4",		NULL,	"ASRC_DEC" },

 	{ "EQ",			NULL,	"EQ Clock" },
+};
+
+static const struct snd_kcontrol_new cs42l43_a_controls[] = {
+	SOC_ENUM_EXT("Decimator 1 Ramp Up", cs42l43_dec1_ramp_up,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 1 Ramp Down", cs42l43_dec1_ramp_down,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 2 Ramp Up", cs42l43_dec2_ramp_up,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 2 Ramp Down", cs42l43_dec2_ramp_down,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 3 Ramp Up", cs42l43_dec3_ramp_up,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 3 Ramp Down", cs42l43_dec3_ramp_down,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 4 Ramp Up", cs42l43_dec4_ramp_up,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 4 Ramp Down", cs42l43_dec4_ramp_down,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+
+	SOC_SINGLE_TLV("Decimator 1 Volume", CS42L43_DECIM_VOL_CTRL_CH1_CH2,
+		       CS42L43_DECIM1_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
+	SOC_SINGLE_EXT("Decimator 1 Switch", CS42L43_DECIM_VOL_CTRL_CH1_CH2,
+		       CS42L43_DECIM1_MUTE_SHIFT, 1, 1,
+		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
+	SOC_SINGLE_TLV("Decimator 2 Volume", CS42L43_DECIM_VOL_CTRL_CH1_CH2,
+		       CS42L43_DECIM2_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
+	SOC_SINGLE_EXT("Decimator 2 Switch", CS42L43_DECIM_VOL_CTRL_CH1_CH2,
+		       CS42L43_DECIM2_MUTE_SHIFT, 1, 1,
+		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
+	SOC_SINGLE_TLV("Decimator 3 Volume", CS42L43_DECIM_VOL_CTRL_CH3_CH4,
+		       CS42L43_DECIM3_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
+	SOC_SINGLE_EXT("Decimator 3 Switch", CS42L43_DECIM_VOL_CTRL_CH3_CH4,
+		       CS42L43_DECIM3_MUTE_SHIFT, 1, 1,
+		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
+	SOC_SINGLE_TLV("Decimator 4 Volume", CS42L43_DECIM_VOL_CTRL_CH3_CH4,
+		       CS42L43_DECIM4_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
+	SOC_SINGLE_EXT("Decimator 4 Switch", CS42L43_DECIM_VOL_CTRL_CH3_CH4,
+		       CS42L43_DECIM4_MUTE_SHIFT, 1, 1,
+		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
+};
+
+static const struct snd_kcontrol_new cs42l43_b_controls[] = {
+	SOC_SINGLE_TLV("Decimator 1 Volume", CS42L43B_DECIM_VOL_CTRL_CH1_CH2,
+		       CS42L43_DECIM1_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
+	SOC_SINGLE_EXT("Decimator 1 Switch", CS42L43B_DECIM_VOL_CTRL_CH1_CH2,
+		       CS42L43_DECIM1_MUTE_SHIFT, 1, 1,
+		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
+	SOC_SINGLE_TLV("Decimator 2 Volume", CS42L43B_DECIM_VOL_CTRL_CH1_CH2,
+		       CS42L43_DECIM2_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
+	SOC_SINGLE_EXT("Decimator 2 Switch", CS42L43B_DECIM_VOL_CTRL_CH1_CH2,
+		       CS42L43_DECIM2_MUTE_SHIFT, 1, 1,
+		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
+	SOC_SINGLE_TLV("Decimator 3 Volume", CS42L43B_DECIM_VOL_CTRL_CH3_CH4,
+		       CS42L43_DECIM3_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
+	SOC_SINGLE_EXT("Decimator 3 Switch", CS42L43B_DECIM_VOL_CTRL_CH3_CH4,
+		       CS42L43_DECIM3_MUTE_SHIFT, 1, 1,
+		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
+	SOC_SINGLE_TLV("Decimator 4 Volume", CS42L43B_DECIM_VOL_CTRL_CH3_CH4,
+		       CS42L43_DECIM4_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
+	SOC_SINGLE_EXT("Decimator 4 Switch", CS42L43B_DECIM_VOL_CTRL_CH3_CH4,
+		       CS42L43_DECIM4_MUTE_SHIFT, 1, 1,
+		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
+	SOC_SINGLE_TLV("Decimator 5 Volume", CS42L43B_DECIM_VOL_CTRL_CH5_CH6,
+		       CS42L43B_DECIM5_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
+	SOC_SINGLE_EXT("Decimator 5 Switch", CS42L43B_DECIM_VOL_CTRL_CH5_CH6,
+		       CS42L43B_DECIM5_MUTE_SHIFT, 1, 1,
+		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
+	SOC_SINGLE_TLV("Decimator 6 Volume", CS42L43B_DECIM_VOL_CTRL_CH5_CH6,
+		       CS42L43B_DECIM6_VOL_SHIFT, 0xBF, 0, cs42l43_dec_tlv),
+	SOC_SINGLE_EXT("Decimator 6 Switch", CS42L43B_DECIM_VOL_CTRL_CH5_CH6,
+		       CS42L43B_DECIM6_MUTE_SHIFT, 1, 1,
+		       cs42l43_decim_get, cs42l43_dapm_put_volsw),
+
+	SOC_ENUM_EXT("Decimator 1 Ramp Up", cs42l43b_dec1_ramp_up,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 1 Ramp Down", cs42l43b_dec1_ramp_down,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 2 Ramp Up", cs42l43b_dec2_ramp_up,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 2 Ramp Down", cs42l43b_dec2_ramp_down,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 3 Ramp Up", cs42l43b_dec3_ramp_up,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 3 Ramp Down", cs42l43b_dec3_ramp_down,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 4 Ramp Up", cs42l43b_dec4_ramp_up,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 4 Ramp Down", cs42l43b_dec4_ramp_down,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 5 Ramp Up", cs42l43b_dec5_ramp_up,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 5 Ramp Down", cs42l43b_dec5_ramp_down,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 6 Ramp Up", cs42l43b_dec6_ramp_up,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+	SOC_ENUM_EXT("Decimator 6 Ramp Down", cs42l43b_dec6_ramp_down,
+		     cs42l43_dapm_get_enum, cs42l43_dapm_put_enum),
+
+	SOC_SINGLE("Decimator 5 WNF Switch", CS42L43B_DECIM_HPF_WNF_CTRL5,
+		   CS42L43_DECIM_WNF_EN_SHIFT, 1, 0),
+	SOC_SINGLE("Decimator 6 WNF Switch", CS42L43B_DECIM_HPF_WNF_CTRL6,
+		   CS42L43_DECIM_WNF_EN_SHIFT, 1, 0),
+
+	SOC_ENUM("Decimator 5 WNF Corner Frequency", cs42l43b_dec5_wnf_corner),
+	SOC_ENUM("Decimator 6 WNF Corner Frequency", cs42l43b_dec6_wnf_corner),
+
+	SOC_SINGLE("Decimator 5 HPF Switch", CS42L43B_DECIM_HPF_WNF_CTRL5,
+		   CS42L43_DECIM_HPF_EN_SHIFT, 1, 0),
+	SOC_SINGLE("Decimator 6 HPF Switch", CS42L43B_DECIM_HPF_WNF_CTRL6,
+		   CS42L43_DECIM_HPF_EN_SHIFT, 1, 0),
+
+	SOC_ENUM("Decimator 5 HPF Corner Frequency", cs42l43b_dec5_hpf_corner),
+	SOC_ENUM("Decimator 6 HPF Corner Frequency", cs42l43b_dec6_hpf_corner),
+};
+
+static const struct snd_soc_dapm_widget cs42l43_a_widgets[] = {
+	SND_SOC_DAPM_MUX("Decimator 1 Mode", SND_SOC_NOPM, 0, 0,
+			 &cs42l43_dec_mode_ctl[0]),
+	SND_SOC_DAPM_MUX("Decimator 2 Mode", SND_SOC_NOPM, 0, 0,
+			 &cs42l43_dec_mode_ctl[1]),
+	CS42L43_DAPM_MUX("ASPTX1", asptx1),
+	CS42L43_DAPM_MUX("ASPTX2", asptx2),
+	CS42L43_DAPM_MUX("ASPTX3", asptx3),
+	CS42L43_DAPM_MUX("ASPTX4", asptx4),
+	CS42L43_DAPM_MUX("ASPTX5", asptx5),
+	CS42L43_DAPM_MUX("ASPTX6", asptx6),
+
+	CS42L43_DAPM_MUX("DP1TX1", dp1tx1),
+	CS42L43_DAPM_MUX("DP1TX2", dp1tx2),
+	CS42L43_DAPM_MUX("DP1TX3", dp1tx3),
+	CS42L43_DAPM_MUX("DP1TX4", dp1tx4),
+	CS42L43_DAPM_MUX("DP2TX1", dp2tx1),
+	CS42L43_DAPM_MUX("DP2TX2", dp2tx2),
+	CS42L43_DAPM_MUX("DP3TX1", dp3tx1),
+	CS42L43_DAPM_MUX("DP3TX2", dp3tx2),
+	CS42L43_DAPM_MUX("DP4TX1", dp4tx1),
+	CS42L43_DAPM_MUX("DP4TX2", dp4tx2),
+
+	CS42L43_DAPM_MUX("ASRC INT1", asrcint1),
+	CS42L43_DAPM_MUX("ASRC INT2", asrcint2),
+	CS42L43_DAPM_MUX("ASRC INT3", asrcint3),
+	CS42L43_DAPM_MUX("ASRC INT4", asrcint4),
+	CS42L43_DAPM_MUX("ASRC DEC1", asrcdec1),
+	CS42L43_DAPM_MUX("ASRC DEC2", asrcdec2),
+	CS42L43_DAPM_MUX("ASRC DEC3", asrcdec3),
+	CS42L43_DAPM_MUX("ASRC DEC4", asrcdec4),
+
+	CS42L43_DAPM_MUX("ISRC1INT1", isrc1int1),
+	CS42L43_DAPM_MUX("ISRC1INT2", isrc1int2),
+	CS42L43_DAPM_MUX("ISRC1DEC1", isrc1dec1),
+	CS42L43_DAPM_MUX("ISRC1DEC2", isrc1dec2),
+	CS42L43_DAPM_MUX("ISRC2INT1", isrc2int1),
+	CS42L43_DAPM_MUX("ISRC2INT2", isrc2int2),
+	CS42L43_DAPM_MUX("ISRC2DEC1", isrc2dec1),
+	CS42L43_DAPM_MUX("ISRC2DEC2", isrc2dec2),
+
+	CS42L43_DAPM_MUX("SPDIF1", spdif1),
+	CS42L43_DAPM_MUX("SPDIF2", spdif2),
+
+	CS42L43_DAPM_MIXER("EQ1", eq1),
+	CS42L43_DAPM_MIXER("EQ2", eq2),
+
+	CS42L43_DAPM_MIXER("Speaker L", amp1),
+	CS42L43_DAPM_MIXER("Speaker R", amp2),
+
+	CS42L43_DAPM_MIXER("Headphone L", amp3),
+	CS42L43_DAPM_MIXER("Headphone R", amp4),
+};
+
+static const struct snd_soc_dapm_widget cs42l43_b_widgets[] = {
+	SND_SOC_DAPM_AIF_OUT("DP3TX3", NULL, 2, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("DP3TX4", NULL, 3, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("DP4TX3", NULL, 2, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_OUT("DP4TX4", NULL, 3, SND_SOC_NOPM, 0, 0),
+
+	SND_SOC_DAPM_PGA("Decimator 5", SND_SOC_NOPM, 0, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Decimator 6", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+	SND_SOC_DAPM_PGA("ISRC1DEC3", CS42L43_ISRC1_CTRL,
+			 CS42L43B_ISRC_DEC3_EN_SHIFT, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("ISRC1DEC4", CS42L43_ISRC1_CTRL,
+			 CS42L43B_ISRC_DEC4_EN_SHIFT, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("ISRC2DEC3", CS42L43_ISRC2_CTRL,
+			 CS42L43B_ISRC_DEC3_EN_SHIFT, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("ISRC2DEC4", CS42L43_ISRC2_CTRL,
+			 CS42L43B_ISRC_DEC4_EN_SHIFT, 0, NULL, 0),
+
+	CS42L43_DAPM_MUX("ASPTX1", b_asptx1),
+	CS42L43_DAPM_MUX("ASPTX2", b_asptx2),
+	CS42L43_DAPM_MUX("ASPTX3", b_asptx3),
+	CS42L43_DAPM_MUX("ASPTX4", b_asptx4),
+	CS42L43_DAPM_MUX("ASPTX5", b_asptx5),
+	CS42L43_DAPM_MUX("ASPTX6", b_asptx6),
+
+	CS42L43_DAPM_MUX("DP1TX1", b_dp1tx1),
+	CS42L43_DAPM_MUX("DP1TX2", b_dp1tx2),
+	CS42L43_DAPM_MUX("DP1TX3", b_dp1tx3),
+	CS42L43_DAPM_MUX("DP1TX4", b_dp1tx4),
+	CS42L43_DAPM_MUX("DP2TX1", b_dp2tx1),
+	CS42L43_DAPM_MUX("DP2TX2", b_dp2tx2),
+	CS42L43_DAPM_MUX("DP3TX1", b_dp3tx1),
+	CS42L43_DAPM_MUX("DP3TX2", b_dp3tx2),
+	CS42L43_DAPM_MUX("DP3TX3", b_dp3tx3),
+	CS42L43_DAPM_MUX("DP3TX4", b_dp3tx4),
+	CS42L43_DAPM_MUX("DP4TX1", b_dp4tx1),
+	CS42L43_DAPM_MUX("DP4TX2", b_dp4tx2),
+	CS42L43_DAPM_MUX("DP4TX3", b_dp4tx3),
+	CS42L43_DAPM_MUX("DP4TX4", b_dp4tx4),
+
+	CS42L43_DAPM_MUX("ASRC INT1", b_asrcint1),
+	CS42L43_DAPM_MUX("ASRC INT2", b_asrcint2),
+	CS42L43_DAPM_MUX("ASRC INT3", b_asrcint3),
+	CS42L43_DAPM_MUX("ASRC INT4", b_asrcint4),
+	CS42L43_DAPM_MUX("ASRC DEC1", b_asrcdec1),
+	CS42L43_DAPM_MUX("ASRC DEC2", b_asrcdec2),
+	CS42L43_DAPM_MUX("ASRC DEC3", b_asrcdec3),
+	CS42L43_DAPM_MUX("ASRC DEC4", b_asrcdec4),
+
+	CS42L43_DAPM_MUX("ISRC1INT1", b_isrc1int1),
+	CS42L43_DAPM_MUX("ISRC1INT2", b_isrc1int2),
+	CS42L43_DAPM_MUX("ISRC1DEC1", b_isrc1dec1),
+	CS42L43_DAPM_MUX("ISRC1DEC2", b_isrc1dec2),
+	CS42L43_DAPM_MUX("ISRC1DEC3", b_isrc1dec3),
+	CS42L43_DAPM_MUX("ISRC1DEC4", b_isrc1dec4),
+	CS42L43_DAPM_MUX("ISRC2INT1", b_isrc2int1),
+	CS42L43_DAPM_MUX("ISRC2INT2", b_isrc2int2),
+	CS42L43_DAPM_MUX("ISRC2DEC1", b_isrc2dec1),
+	CS42L43_DAPM_MUX("ISRC2DEC2", b_isrc2dec2),
+	CS42L43_DAPM_MUX("ISRC2DEC3", b_isrc2dec3),
+	CS42L43_DAPM_MUX("ISRC2DEC4", b_isrc2dec4),
+
+	CS42L43_DAPM_MUX("SPDIF1", b_spdif1),
+	CS42L43_DAPM_MUX("SPDIF2", b_spdif2),
+
+	CS42L43_DAPM_MIXER("EQ1", b_eq1),
+	CS42L43_DAPM_MIXER("EQ2", b_eq2),
+
+	CS42L43_DAPM_MIXER("Speaker L", b_amp1),
+	CS42L43_DAPM_MIXER("Speaker R", b_amp2),
+
+	CS42L43_DAPM_MIXER("Headphone L", b_amp3),
+	CS42L43_DAPM_MIXER("Headphone R", b_amp4),
+};
+
+static const struct snd_soc_dapm_route cs42l43_a_routes[] = {
+	{ "Decimator 1 Mode",	"PDM",	"PDM1L" },
+	{ "Decimator 1 Mode",	"ADC",	"ADC1" },
+	{ "Decimator 2 Mode",	"PDM",	"PDM1R" },
+	{ "Decimator 2 Mode",	"ADC",	"ADC2" },
+
+	{ "Decimator 1",	NULL,	"Decimator 1 Mode" },
+	{ "Decimator 2",	NULL,	"Decimator 2 Mode" },
+	{ "Decimator 3",	NULL,	"PDM2L" },
+	{ "Decimator 4",	NULL,	"PDM2R" },

 	CS42L43_MUX_ROUTES("ASPTX1", "ASPTX1"),
 	CS42L43_MUX_ROUTES("ASPTX2", "ASPTX2"),
@@ -2110,6 +2486,81 @@ static const struct snd_soc_dapm_route cs42l43_routes[] = {
 	CS42L43_MIXER_ROUTES("Headphone R", "HP"),
 };

+static const struct snd_soc_dapm_route cs42l43_b_routes[] = {
+	{ "Decimator 1",	NULL,	"ADC1" },
+	{ "Decimator 2",	NULL,	"ADC2" },
+	{ "Decimator 3",	NULL,	"PDM1L" },
+	{ "Decimator 4",	NULL,	"PDM1R" },
+	{ "Decimator 5",	NULL,	"PDM2L" },
+	{ "Decimator 6",	NULL,	"PDM2R" },
+
+	{ "DP3 Capture",	NULL, "DP3TX3" },
+	{ "DP3 Capture",	NULL, "DP3TX4" },
+	{ "DP4 Capture",	NULL, "DP4TX3" },
+	{ "DP4 Capture",	NULL, "DP4TX4" },
+
+	{ "ISRC1DEC3",		NULL,	"ISRC1" },
+	{ "ISRC1DEC4",		NULL,	"ISRC1" },
+	{ "ISRC2DEC3",		NULL,	"ISRC2" },
+	{ "ISRC2DEC4",		NULL,	"ISRC2" },
+
+	CS42L43B_MUX_ROUTES("ASPTX1", "ASPTX1"),
+	CS42L43B_MUX_ROUTES("ASPTX2", "ASPTX2"),
+	CS42L43B_MUX_ROUTES("ASPTX3", "ASPTX3"),
+	CS42L43B_MUX_ROUTES("ASPTX4", "ASPTX4"),
+	CS42L43B_MUX_ROUTES("ASPTX5", "ASPTX5"),
+	CS42L43B_MUX_ROUTES("ASPTX6", "ASPTX6"),
+
+	CS42L43B_MUX_ROUTES("DP1TX1", "DP1TX1"),
+	CS42L43B_MUX_ROUTES("DP1TX2", "DP1TX2"),
+	CS42L43B_MUX_ROUTES("DP1TX3", "DP1TX3"),
+	CS42L43B_MUX_ROUTES("DP1TX4", "DP1TX4"),
+	CS42L43B_MUX_ROUTES("DP2TX1", "DP2TX1"),
+	CS42L43B_MUX_ROUTES("DP2TX2", "DP2TX2"),
+	CS42L43B_MUX_ROUTES("DP3TX1", "DP3TX1"),
+	CS42L43B_MUX_ROUTES("DP3TX2", "DP3TX2"),
+	CS42L43B_MUX_ROUTES("DP3TX3", "DP3TX3"),
+	CS42L43B_MUX_ROUTES("DP3TX4", "DP3TX4"),
+	CS42L43B_MUX_ROUTES("DP4TX1", "DP4TX1"),
+	CS42L43B_MUX_ROUTES("DP4TX2", "DP4TX2"),
+	CS42L43B_MUX_ROUTES("DP4TX3", "DP4TX3"),
+	CS42L43B_MUX_ROUTES("DP4TX4", "DP4TX4"),
+
+	CS42L43B_MUX_ROUTES("ASRC INT1", "ASRC_INT1"),
+	CS42L43B_MUX_ROUTES("ASRC INT2", "ASRC_INT2"),
+	CS42L43B_MUX_ROUTES("ASRC INT3", "ASRC_INT3"),
+	CS42L43B_MUX_ROUTES("ASRC INT4", "ASRC_INT4"),
+	CS42L43B_MUX_ROUTES("ASRC DEC1", "ASRC_DEC1"),
+	CS42L43B_MUX_ROUTES("ASRC DEC2", "ASRC_DEC2"),
+	CS42L43B_MUX_ROUTES("ASRC DEC3", "ASRC_DEC3"),
+	CS42L43B_MUX_ROUTES("ASRC DEC4", "ASRC_DEC4"),
+
+	CS42L43B_MUX_ROUTES("ISRC1INT1", "ISRC1INT1"),
+	CS42L43B_MUX_ROUTES("ISRC1INT2", "ISRC1INT2"),
+	CS42L43B_MUX_ROUTES("ISRC1DEC1", "ISRC1DEC1"),
+	CS42L43B_MUX_ROUTES("ISRC1DEC2", "ISRC1DEC2"),
+	CS42L43B_MUX_ROUTES("ISRC1DEC3", "ISRC1DEC3"),
+	CS42L43B_MUX_ROUTES("ISRC1DEC4", "ISRC1DEC4"),
+	CS42L43B_MUX_ROUTES("ISRC2INT1", "ISRC2INT1"),
+	CS42L43B_MUX_ROUTES("ISRC2INT2", "ISRC2INT2"),
+	CS42L43B_MUX_ROUTES("ISRC2DEC1", "ISRC2DEC1"),
+	CS42L43B_MUX_ROUTES("ISRC2DEC2", "ISRC2DEC2"),
+	CS42L43B_MUX_ROUTES("ISRC2DEC3", "ISRC2DEC3"),
+	CS42L43B_MUX_ROUTES("ISRC2DEC4", "ISRC2DEC4"),
+
+	CS42L43B_MUX_ROUTES("SPDIF1", "SPDIF"),
+	CS42L43B_MUX_ROUTES("SPDIF2", "SPDIF"),
+
+	CS42L43B_MIXER_ROUTES("EQ1", "EQ"),
+	CS42L43B_MIXER_ROUTES("EQ2", "EQ"),
+
+	CS42L43B_MIXER_ROUTES("Speaker L", "AMP1"),
+	CS42L43B_MIXER_ROUTES("Speaker R", "AMP2"),
+
+	CS42L43B_MIXER_ROUTES("Headphone L", "HP"),
+	CS42L43B_MIXER_ROUTES("Headphone R", "HP"),
+};
+
 static int cs42l43_set_sysclk(struct snd_soc_component *component, int clk_id,
 			      int src, unsigned int freq, int dir)
 {
@@ -2126,8 +2577,14 @@ static int cs42l43_set_sysclk(struct snd_soc_component *component, int clk_id,

 static int cs42l43_component_probe(struct snd_soc_component *component)
 {
+	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 	struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component);
+	unsigned int num_controls, num_widgets, num_routes;
+	const struct snd_soc_dapm_widget *widgets;
+	const struct snd_kcontrol_new *controls;
+	const struct snd_soc_dapm_route *routes;
 	struct cs42l43 *cs42l43 = priv->core;
+	int ret;

 	snd_soc_component_init_regmap(component, cs42l43->regmap);

@@ -2139,6 +2596,39 @@ static int cs42l43_component_probe(struct snd_soc_component *component)
 	priv->component = component;
 	priv->constraint = cs42l43_constraint;

+	switch (cs42l43->variant_id) {
+	case CS42L43_DEVID_VAL:
+		controls = cs42l43_a_controls;
+		num_controls = ARRAY_SIZE(cs42l43_a_controls);
+		widgets = cs42l43_a_widgets;
+		num_widgets = ARRAY_SIZE(cs42l43_a_widgets);
+		routes = cs42l43_a_routes;
+		num_routes = ARRAY_SIZE(cs42l43_a_routes);
+		break;
+	case CS42L43B_DEVID_VAL:
+		controls = cs42l43_b_controls;
+		num_controls = ARRAY_SIZE(cs42l43_b_controls);
+		widgets = cs42l43_b_widgets;
+		num_widgets = ARRAY_SIZE(cs42l43_b_widgets);
+		routes = cs42l43_b_routes;
+		num_routes = ARRAY_SIZE(cs42l43_b_routes);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = snd_soc_add_component_controls(component, controls, num_controls);
+	if (ret)
+		return ret;
+
+	ret = snd_soc_dapm_new_controls(dapm, widgets, num_widgets);
+	if (ret)
+		return ret;
+
+	ret = snd_soc_dapm_add_routes(dapm, routes, num_routes);
+	if (ret)
+		return ret;
+
 	return 0;
 }

diff --git a/sound/soc/codecs/cs42l43.h b/sound/soc/codecs/cs42l43.h
index b2fa2cd1d99f..fd50feb26ae9 100644
--- a/sound/soc/codecs/cs42l43.h
+++ b/sound/soc/codecs/cs42l43.h
@@ -61,7 +61,7 @@ struct cs42l43_codec {
 	unsigned int refclk_freq;
 	struct completion pll_ready;

-	unsigned int decim_cache[4];
+	unsigned int decim_cache[6];
 	unsigned int adc_ena;
 	unsigned int hp_ena;

@@ -103,7 +103,7 @@ struct cs42l43_codec {
 	bool hp_ilimited;
 	int hp_ilimit_count;

-	struct snd_kcontrol *kctl[5];
+	struct snd_kcontrol *kctl[7];
 };

 #if IS_REACHABLE(CONFIG_SND_SOC_CS42L43_SDW)
--
2.48.1

Re: [PATCH v2 2/4] ASoC: dt-bindings: cirrus,cs42l43: Add CS42L43B variant

[Krzysztof Kozlowski]

On Fri, Jan 16, 2026 at 03:20:41PM +0000, Maciej Strozek wrote:
> CS42L43B variant adds dedicated PDM interface, SoundWire Clock Gearing
> support and more decimators to ISRCs.
> 
> Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
> ---
>  Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml | 3 +++
>  1 file changed, 3 insertions(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof

Re: [PATCH v2 3/4] mfd: cs42l43: Add support for the B variant

[Lee Jones]

On Fri, 16 Jan 2026, Maciej Strozek wrote:

> Introducing CS42L43B codec, a variant of CS42L43 which can be driven by
> the same driver.
> 
> Changes in CS42L43 driver specific for CS42L43B:
> - Decimator 1 and 2 are dedicated to ADC, can't be selected for PDM
> - Decimators 3 and 4 are connected to PDM1
> - Added Decimator 5 and 6 for PDM2
> - Supports SoundWire Clock Gearing
> - Updated ROM requiring no patching
> - Reduced RAM space
> - Each ISRC has 4 decimators now
> 
> Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
> ---
> Changes in v2:
>  - Rework the mechanism to identify the new variant along with some
>    error handling improvements.
>  - Added some comments in cs42l43_readable_register() for clarity.
>  - Add handling of the I2C path for the B variant
> ---
>  drivers/mfd/cs42l43-i2c.c        |  7 ++-
>  drivers/mfd/cs42l43-sdw.c        |  4 +-
>  drivers/mfd/cs42l43.c            | 93 +++++++++++++++++++++++++++-----
>  drivers/mfd/cs42l43.h            |  2 +-
>  include/linux/mfd/cs42l43-regs.h | 76 ++++++++++++++++++++++++++
>  include/linux/mfd/cs42l43.h      |  1 +
>  6 files changed, 166 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/mfd/cs42l43-i2c.c b/drivers/mfd/cs42l43-i2c.c
> index a2ab001a600a..0a0ab5e549a5 100644
> --- a/drivers/mfd/cs42l43-i2c.c
> +++ b/drivers/mfd/cs42l43-i2c.c
> @@ -47,6 +47,7 @@ static int cs42l43_i2c_probe(struct i2c_client *i2c)
>  	cs42l43->irq = i2c->irq;
>  	/* A device on an I2C is always attached by definition. */
>  	cs42l43->attached = true;
> +	cs42l43->variant_id = (long)device_get_match_data(cs42l43->dev);

[...]

> diff --git a/include/linux/mfd/cs42l43.h b/include/linux/mfd/cs42l43.h
> index 2239d8585e78..8313f9e8c722 100644
> --- a/include/linux/mfd/cs42l43.h
> +++ b/include/linux/mfd/cs42l43.h
> @@ -98,6 +98,7 @@ struct cs42l43 {
>  	bool sdw_pll_active;
>  	bool attached;
>  	bool hw_lock;
> +	int variant_id;
>  };

long != int

-- 
Lee Jones [李琼斯]