ASoC: max98396: add amplifier driver

This series of patches adds support for Analog Devices MAX98396
mono amplifier with IV sense. The device provides a PCM interface
for audio data and a standard I2C interface for control data
communication. This driver also supports MAX98397 which is
a variant of MAX98396 with wide input supply range.

Signed-off-by: Ryan Lee <ryan.lee.analog@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20220423021558.1773598-1-ryan.lee.analog@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

4 files changed, 1953 insertions, 0 deletions

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 82dced8081c0..b106e5517090 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -129,6 +129,7 @@ config SND_SOC_ALL_CODECS
 	imply SND_SOC_MAX98373_I2C
 	imply SND_SOC_MAX98373_SDW
 	imply SND_SOC_MAX98390
+	imply SND_SOC_MAX98396
 	imply SND_SOC_MAX9850
 	imply SND_SOC_MAX9860
 	imply SND_SOC_MAX9759
@@ -1047,6 +1048,15 @@ config SND_SOC_MAX98390
 	tristate "Maxim Integrated MAX98390 Speaker Amplifier"
 	depends on I2C
 
+config SND_SOC_MAX98396
+	tristate "Analog Devices MAX98396 Speaker Amplifier"
+	depends on I2C
+	help
+	  Enable support for Analog Devices MAX98396 audio
+	  amplifier. The device provides a PCM interface for
+	  audio data and a standard I2C interface for control
+	  data communication.
+
 config SND_SOC_MAX9850
 	tristate
 	depends on I2C
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index c943f10fa309..28dc4edfd01f 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -139,6 +139,7 @@ snd-soc-max98373-objs := max98373.o
 snd-soc-max98373-i2c-objs := max98373-i2c.o
 snd-soc-max98373-sdw-objs := max98373-sdw.o
 snd-soc-max98390-objs := max98390.o
+snd-soc-max98396-objs := max98396.o
 snd-soc-max9850-objs := max9850.o
 snd-soc-max9860-objs := max9860.o
 snd-soc-mc13783-objs := mc13783.o
@@ -485,6 +486,7 @@ obj-$(CONFIG_SND_SOC_MAX98373)	+= snd-soc-max98373.o
 obj-$(CONFIG_SND_SOC_MAX98373_I2C)   += snd-soc-max98373-i2c.o
 obj-$(CONFIG_SND_SOC_MAX98373_SDW)   += snd-soc-max98373-sdw.o
 obj-$(CONFIG_SND_SOC_MAX98390)	+= snd-soc-max98390.o
+obj-$(CONFIG_SND_SOC_MAX98396)	+= snd-soc-max98396.o
 obj-$(CONFIG_SND_SOC_MAX9850)	+= snd-soc-max9850.o
 obj-$(CONFIG_SND_SOC_MAX9860)	+= snd-soc-max9860.o
 obj-$(CONFIG_SND_SOC_MC13783)	+= snd-soc-mc13783.o
diff --git a/sound/soc/codecs/max98396.c b/sound/soc/codecs/max98396.c
new file mode 100644
index 000000000000..745d7e761680
--- /dev/null
+++ b/sound/soc/codecs/max98396.c
@@ -0,0 +1,1636 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2022, Analog Devices Inc.
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <linux/gpio.h>
+#include <sound/tlv.h>
+#include "max98396.h"
+
+static struct reg_default max98396_reg[] = {
+	{MAX98396_R2000_SW_RESET, 0x00},
+	{MAX98396_R2001_INT_RAW1, 0x00},
+	{MAX98396_R2002_INT_RAW2, 0x00},
+	{MAX98396_R2003_INT_RAW3, 0x00},
+	{MAX98396_R2004_INT_RAW4, 0x00},
+	{MAX98396_R2006_INT_STATE1, 0x00},
+	{MAX98396_R2007_INT_STATE2, 0x00},
+	{MAX98396_R2008_INT_STATE3, 0x00},
+	{MAX98396_R2009_INT_STATE4, 0x00},
+	{MAX98396_R200B_INT_FLAG1, 0x00},
+	{MAX98396_R200C_INT_FLAG2, 0x00},
+	{MAX98396_R200D_INT_FLAG3, 0x00},
+	{MAX98396_R200E_INT_FLAG4, 0x00},
+	{MAX98396_R2010_INT_EN1, 0x02},
+	{MAX98396_R2011_INT_EN2, 0x00},
+	{MAX98396_R2012_INT_EN3, 0x00},
+	{MAX98396_R2013_INT_EN4, 0x00},
+	{MAX98396_R2015_INT_FLAG_CLR1, 0x00},
+	{MAX98396_R2016_INT_FLAG_CLR2, 0x00},
+	{MAX98396_R2017_INT_FLAG_CLR3, 0x00},
+	{MAX98396_R2018_INT_FLAG_CLR4, 0x00},
+	{MAX98396_R201F_IRQ_CTRL, 0x00},
+	{MAX98396_R2020_THERM_WARN_THRESH, 0x46},
+	{MAX98396_R2021_THERM_WARN_THRESH2, 0x46},
+	{MAX98396_R2022_THERM_SHDN_THRESH, 0x64},
+	{MAX98396_R2023_THERM_HYSTERESIS, 0x02},
+	{MAX98396_R2024_THERM_FOLDBACK_SET, 0xC5},
+	{MAX98396_R2027_THERM_FOLDBACK_EN, 0x01},
+	{MAX98396_R2030_NOISEGATE_MODE_CTRL, 0x32},
+	{MAX98396_R2033_NOISEGATE_MODE_EN, 0x00},
+	{MAX98396_R2038_CLK_MON_CTRL, 0x00},
+	{MAX98396_R2039_DATA_MON_CTRL, 0x00},
+	{MAX98396_R203F_ENABLE_CTRLS, 0x0F},
+	{MAX98396_R2040_PIN_CFG, 0x55},
+	{MAX98396_R2041_PCM_MODE_CFG, 0xC0},
+	{MAX98396_R2042_PCM_CLK_SETUP, 0x04},
+	{MAX98396_R2043_PCM_SR_SETUP, 0x88},
+	{MAX98396_R2044_PCM_TX_CTRL_1, 0x00},
+	{MAX98396_R2045_PCM_TX_CTRL_2, 0x00},
+	{MAX98396_R2046_PCM_TX_CTRL_3, 0x00},
+	{MAX98396_R2047_PCM_TX_CTRL_4, 0x00},
+	{MAX98396_R2048_PCM_TX_CTRL_5, 0x00},
+	{MAX98396_R2049_PCM_TX_CTRL_6, 0x00},
+	{MAX98396_R204A_PCM_TX_CTRL_7, 0x00},
+	{MAX98396_R204B_PCM_TX_CTRL_8, 0x00},
+	{MAX98396_R204C_PCM_TX_HIZ_CTRL_1, 0xFF},
+	{MAX98396_R204D_PCM_TX_HIZ_CTRL_2, 0xFF},
+	{MAX98396_R204E_PCM_TX_HIZ_CTRL_3, 0xFF},
+	{MAX98396_R204F_PCM_TX_HIZ_CTRL_4, 0xFF},
+	{MAX98396_R2050_PCM_TX_HIZ_CTRL_5, 0xFF},
+	{MAX98396_R2051_PCM_TX_HIZ_CTRL_6, 0xFF},
+	{MAX98396_R2052_PCM_TX_HIZ_CTRL_7, 0xFF},
+	{MAX98396_R2053_PCM_TX_HIZ_CTRL_8, 0xFF},
+	{MAX98396_R2055_PCM_RX_SRC1, 0x00},
+	{MAX98396_R2056_PCM_RX_SRC2, 0x00},
+	{MAX98396_R2058_PCM_BYPASS_SRC, 0x00},
+	{MAX98396_R205D_PCM_TX_SRC_EN, 0x00},
+	{MAX98396_R205E_PCM_RX_EN, 0x00},
+	{MAX98396_R205F_PCM_TX_EN, 0x00},
+	{MAX98396_R2070_ICC_RX_EN_A, 0x00},
+	{MAX98396_R2071_ICC_RX_EN_B, 0x00},
+	{MAX98396_R2072_ICC_TX_CTRL, 0x00},
+	{MAX98396_R207F_ICC_EN, 0x00},
+	{MAX98396_R2083_TONE_GEN_DC_CFG, 0x04},
+	{MAX98396_R2084_TONE_GEN_DC_LVL1, 0x00},
+	{MAX98396_R2085_TONE_GEN_DC_LVL2, 0x00},
+	{MAX98396_R2086_TONE_GEN_DC_LVL3, 0x00},
+	{MAX98396_R208F_TONE_GEN_EN, 0x00},
+	{MAX98396_R2090_AMP_VOL_CTRL, 0x00},
+	{MAX98396_R2091_AMP_PATH_GAIN, 0x0B},
+	{MAX98396_R2092_AMP_DSP_CFG, 0x23},
+	{MAX98396_R2093_SSM_CFG, 0x0D},
+	{MAX98396_R2094_SPK_CLS_DG_THRESH, 0x12},
+	{MAX98396_R2095_SPK_CLS_DG_HDR, 0x17},
+	{MAX98396_R2096_SPK_CLS_DG_HOLD_TIME, 0x17},
+	{MAX98396_R2097_SPK_CLS_DG_DELAY, 0x00},
+	{MAX98396_R2098_SPK_CLS_DG_MODE, 0x00},
+	{MAX98396_R2099_SPK_CLS_DG_VBAT_LVL, 0x03},
+	{MAX98396_R209A_SPK_EDGE_CTRL, 0x00},
+	{MAX98396_R209C_SPK_EDGE_CTRL1, 0x0A},
+	{MAX98396_R209D_SPK_EDGE_CTRL2, 0xAA},
+	{MAX98396_R209E_AMP_CLIP_GAIN, 0x00},
+	{MAX98396_R209F_BYPASS_PATH_CFG, 0x00},
+	{MAX98396_R20A0_AMP_SUPPLY_CTL, 0x00},
+	{MAX98396_R20AF_AMP_EN, 0x00},
+	{MAX98396_R20B0_ADC_SR, 0x30},
+	{MAX98396_R20B1_ADC_PVDD_CFG, 0x00},
+	{MAX98396_R20B2_ADC_VBAT_CFG, 0x00},
+	{MAX98396_R20B3_ADC_THERMAL_CFG, 0x00},
+	{MAX98396_R20B4_ADC_READBACK_CTRL1, 0x00},
+	{MAX98396_R20B5_ADC_READBACK_CTRL2, 0x00},
+	{MAX98396_R20B6_ADC_PVDD_READBACK_MSB, 0x00},
+	{MAX98396_R20B7_ADC_PVDD_READBACK_LSB, 0x00},
+	{MAX98396_R20B8_ADC_VBAT_READBACK_MSB, 0x00},
+	{MAX98396_R20B9_ADC_VBAT_READBACK_LSB, 0x00},
+	{MAX98396_R20BA_ADC_TEMP_READBACK_MSB, 0x00},
+	{MAX98396_R20BB_ADC_TEMP_READBACK_LSB, 0x00},
+	{MAX98396_R20BC_ADC_LO_PVDD_READBACK_MSB, 0x00},
+	{MAX98396_R20BD_ADC_LO_PVDD_READBACK_LSB, 0x00},
+	{MAX98396_R20BE_ADC_LO_VBAT_READBACK_MSB, 0x00},
+	{MAX98396_R20BF_ADC_LO_VBAT_READBACK_LSB, 0x00},
+	{MAX98396_R20C7_ADC_CFG, 0x00},
+	{MAX98396_R20D0_DHT_CFG1, 0x00},
+	{MAX98396_R20D1_LIMITER_CFG1, 0x08},
+	{MAX98396_R20D2_LIMITER_CFG2, 0x00},
+	{MAX98396_R20D3_DHT_CFG2, 0x14},
+	{MAX98396_R20D4_DHT_CFG3, 0x02},
+	{MAX98396_R20D5_DHT_CFG4, 0x04},
+	{MAX98396_R20D6_DHT_HYSTERESIS_CFG, 0x07},
+	{MAX98396_R20DF_DHT_EN, 0x00},
+	{MAX98396_R20E0_IV_SENSE_PATH_CFG, 0x04},
+	{MAX98396_R20E4_IV_SENSE_PATH_EN, 0x00},
+	{MAX98396_R20E5_BPE_STATE, 0x00},
+	{MAX98396_R20E6_BPE_L3_THRESH_MSB, 0x00},
+	{MAX98396_R20E7_BPE_L3_THRESH_LSB, 0x00},
+	{MAX98396_R20E8_BPE_L2_THRESH_MSB, 0x00},
+	{MAX98396_R20E9_BPE_L2_THRESH_LSB, 0x00},
+	{MAX98396_R20EA_BPE_L1_THRESH_MSB, 0x00},
+	{MAX98396_R20EB_BPE_L1_THRESH_LSB, 0x00},
+	{MAX98396_R20EC_BPE_L0_THRESH_MSB, 0x00},
+	{MAX98396_R20ED_BPE_L0_THRESH_LSB, 0x00},
+	{MAX98396_R20EE_BPE_L3_DWELL_HOLD_TIME, 0x00},
+	{MAX98396_R20EF_BPE_L2_DWELL_HOLD_TIME, 0x00},
+	{MAX98396_R20F0_BPE_L1_DWELL_HOLD_TIME, 0x00},
+	{MAX98396_R20F1_BPE_L0_HOLD_TIME, 0x00},
+	{MAX98396_R20F2_BPE_L3_ATTACK_REL_STEP, 0x00},
+	{MAX98396_R20F3_BPE_L2_ATTACK_REL_STEP, 0x00},
+	{MAX98396_R20F4_BPE_L1_ATTACK_REL_STEP, 0x00},
+	{MAX98396_R20F5_BPE_L0_ATTACK_REL_STEP, 0x00},
+	{MAX98396_R20F6_BPE_L3_MAX_GAIN_ATTN, 0x00},
+	{MAX98396_R20F7_BPE_L2_MAX_GAIN_ATTN, 0x00},
+	{MAX98396_R20F8_BPE_L1_MAX_GAIN_ATTN, 0x00},
+	{MAX98396_R20F9_BPE_L0_MAX_GAIN_ATTN, 0x00},
+	{MAX98396_R20FA_BPE_L3_ATT_REL_RATE, 0x00},
+	{MAX98396_R20FB_BPE_L2_ATT_REL_RATE, 0x00},
+	{MAX98396_R20FC_BPE_L1_ATT_REL_RATE, 0x00},
+	{MAX98396_R20FD_BPE_L0_ATT_REL_RATE, 0x00},
+	{MAX98396_R20FE_BPE_L3_LIMITER_CFG, 0x00},
+	{MAX98396_R20FF_BPE_L2_LIMITER_CFG, 0x00},
+	{MAX98396_R2100_BPE_L1_LIMITER_CFG, 0x00},
+	{MAX98396_R2101_BPE_L0_LIMITER_CFG, 0x00},
+	{MAX98396_R2102_BPE_L3_LIM_ATT_REL_RATE, 0x00},
+	{MAX98396_R2103_BPE_L2_LIM_ATT_REL_RATE, 0x00},
+	{MAX98396_R2104_BPE_L1_LIM_ATT_REL_RATE, 0x00},
+	{MAX98396_R2105_BPE_L0_LIM_ATT_REL_RATE, 0x00},
+	{MAX98396_R2106_BPE_THRESH_HYSTERESIS, 0x00},
+	{MAX98396_R2107_BPE_INFINITE_HOLD_CLR, 0x00},
+	{MAX98396_R2108_BPE_SUPPLY_SRC, 0x00},
+	{MAX98396_R2109_BPE_LOW_STATE, 0x00},
+	{MAX98396_R210A_BPE_LOW_GAIN, 0x00},
+	{MAX98396_R210B_BPE_LOW_LIMITER, 0x00},
+	{MAX98396_R210D_BPE_EN, 0x00},
+	{MAX98396_R210E_AUTO_RESTART, 0x00},
+	{MAX98396_R210F_GLOBAL_EN, 0x00},
+	{MAX98396_R21FF_REVISION_ID, 0x00},
+};
+
+static struct reg_default max98397_reg[] = {
+	{MAX98396_R2000_SW_RESET, 0x00},
+	{MAX98396_R2001_INT_RAW1, 0x00},
+	{MAX98396_R2002_INT_RAW2, 0x00},
+	{MAX98396_R2003_INT_RAW3, 0x00},
+	{MAX98396_R2004_INT_RAW4, 0x00},
+	{MAX98396_R2006_INT_STATE1, 0x00},
+	{MAX98396_R2007_INT_STATE2, 0x00},
+	{MAX98396_R2008_INT_STATE3, 0x00},
+	{MAX98396_R2009_INT_STATE4, 0x00},
+	{MAX98396_R200B_INT_FLAG1, 0x00},
+	{MAX98396_R200C_INT_FLAG2, 0x00},
+	{MAX98396_R200D_INT_FLAG3, 0x00},
+	{MAX98396_R200E_INT_FLAG4, 0x00},
+	{MAX98396_R2010_INT_EN1, 0x02},
+	{MAX98396_R2011_INT_EN2, 0x00},
+	{MAX98396_R2012_INT_EN3, 0x00},
+	{MAX98396_R2013_INT_EN4, 0x00},
+	{MAX98396_R2015_INT_FLAG_CLR1, 0x00},
+	{MAX98396_R2016_INT_FLAG_CLR2, 0x00},
+	{MAX98396_R2017_INT_FLAG_CLR3, 0x00},
+	{MAX98396_R2018_INT_FLAG_CLR4, 0x00},
+	{MAX98396_R201F_IRQ_CTRL, 0x00},
+	{MAX98396_R2020_THERM_WARN_THRESH, 0x46},
+	{MAX98396_R2021_THERM_WARN_THRESH2, 0x46},
+	{MAX98396_R2022_THERM_SHDN_THRESH, 0x64},
+	{MAX98396_R2023_THERM_HYSTERESIS, 0x02},
+	{MAX98396_R2024_THERM_FOLDBACK_SET, 0xC5},
+	{MAX98396_R2027_THERM_FOLDBACK_EN, 0x01},
+	{MAX98396_R2030_NOISEGATE_MODE_CTRL, 0x32},
+	{MAX98396_R2033_NOISEGATE_MODE_EN, 0x00},
+	{MAX98396_R2038_CLK_MON_CTRL, 0x00},
+	{MAX98396_R2039_DATA_MON_CTRL, 0x00},
+	{MAX98397_R203A_SPK_MON_THRESH, 0x03},
+	{MAX98396_R203F_ENABLE_CTRLS, 0x0F},
+	{MAX98396_R2040_PIN_CFG, 0x55},
+	{MAX98396_R2041_PCM_MODE_CFG, 0xC0},
+	{MAX98396_R2042_PCM_CLK_SETUP, 0x04},
+	{MAX98396_R2043_PCM_SR_SETUP, 0x88},
+	{MAX98396_R2044_PCM_TX_CTRL_1, 0x00},
+	{MAX98396_R2045_PCM_TX_CTRL_2, 0x00},
+	{MAX98396_R2046_PCM_TX_CTRL_3, 0x00},
+	{MAX98396_R2047_PCM_TX_CTRL_4, 0x00},
+	{MAX98396_R2048_PCM_TX_CTRL_5, 0x00},
+	{MAX98396_R2049_PCM_TX_CTRL_6, 0x00},
+	{MAX98396_R204A_PCM_TX_CTRL_7, 0x00},
+	{MAX98396_R204B_PCM_TX_CTRL_8, 0x00},
+	{MAX98397_R204C_PCM_TX_CTRL_9, 0x00},
+	{MAX98397_R204D_PCM_TX_HIZ_CTRL_1, 0xFF},
+	{MAX98397_R204E_PCM_TX_HIZ_CTRL_2, 0xFF},
+	{MAX98397_R204F_PCM_TX_HIZ_CTRL_3, 0xFF},
+	{MAX98397_R2050_PCM_TX_HIZ_CTRL_4, 0xFF},
+	{MAX98397_R2051_PCM_TX_HIZ_CTRL_5, 0xFF},
+	{MAX98397_R2052_PCM_TX_HIZ_CTRL_6, 0xFF},
+	{MAX98397_R2053_PCM_TX_HIZ_CTRL_7, 0xFF},
+	{MAX98397_R2054_PCM_TX_HIZ_CTRL_8, 0xFF},
+	{MAX98397_R2056_PCM_RX_SRC1, 0x00},
+	{MAX98397_R2057_PCM_RX_SRC2, 0x00},
+	{MAX98396_R2058_PCM_BYPASS_SRC, 0x00},
+	{MAX98396_R205D_PCM_TX_SRC_EN, 0x00},
+	{MAX98396_R205E_PCM_RX_EN, 0x00},
+	{MAX98396_R205F_PCM_TX_EN, 0x00},
+	{MAX98397_R2060_PCM_TX_SUPPLY_SEL, 0x00},
+	{MAX98396_R2070_ICC_RX_EN_A, 0x00},
+	{MAX98396_R2071_ICC_RX_EN_B, 0x00},
+	{MAX98396_R2072_ICC_TX_CTRL, 0x00},
+	{MAX98396_R207F_ICC_EN, 0x00},
+	{MAX98396_R2083_TONE_GEN_DC_CFG, 0x04},
+	{MAX98396_R2084_TONE_GEN_DC_LVL1, 0x00},
+	{MAX98396_R2085_TONE_GEN_DC_LVL2, 0x00},
+	{MAX98396_R2086_TONE_GEN_DC_LVL3, 0x00},
+	{MAX98396_R208F_TONE_GEN_EN, 0x00},
+	{MAX98396_R2090_AMP_VOL_CTRL, 0x00},
+	{MAX98396_R2091_AMP_PATH_GAIN, 0x12},
+	{MAX98396_R2092_AMP_DSP_CFG, 0x22},
+	{MAX98396_R2093_SSM_CFG, 0x08},
+	{MAX98396_R2094_SPK_CLS_DG_THRESH, 0x12},
+	{MAX98396_R2095_SPK_CLS_DG_HDR, 0x17},
+	{MAX98396_R2096_SPK_CLS_DG_HOLD_TIME, 0x17},
+	{MAX98396_R2097_SPK_CLS_DG_DELAY, 0x00},
+	{MAX98396_R2098_SPK_CLS_DG_MODE, 0x00},
+	{MAX98396_R2099_SPK_CLS_DG_VBAT_LVL, 0x03},
+	{MAX98396_R209A_SPK_EDGE_CTRL, 0x00},
+	{MAX98397_R209B_SPK_PATH_WB_ONLY, 0x00},
+	{MAX98396_R209C_SPK_EDGE_CTRL1, 0x03},
+	{MAX98396_R209D_SPK_EDGE_CTRL2, 0xFC},
+	{MAX98396_R209E_AMP_CLIP_GAIN, 0x00},
+	{MAX98396_R209F_BYPASS_PATH_CFG, 0x00},
+	{MAX98396_R20AF_AMP_EN, 0x00},
+	{MAX98396_R20B0_ADC_SR, 0x30},
+	{MAX98396_R20B1_ADC_PVDD_CFG, 0x00},
+	{MAX98396_R20B2_ADC_VBAT_CFG, 0x00},
+	{MAX98396_R20B3_ADC_THERMAL_CFG, 0x00},
+	{MAX98397_R20B4_ADC_VDDH_CFG, 0x00},
+	{MAX98397_R20B5_ADC_READBACK_CTRL1, 0x00},
+	{MAX98397_R20B6_ADC_READBACK_CTRL2, 0x00},
+	{MAX98397_R20B7_ADC_PVDD_READBACK_MSB, 0x00},
+	{MAX98397_R20B8_ADC_PVDD_READBACK_LSB, 0x00},
+	{MAX98397_R20B9_ADC_VBAT_READBACK_MSB, 0x00},
+	{MAX98397_R20BA_ADC_VBAT_READBACK_LSB, 0x00},
+	{MAX98397_R20BB_ADC_TEMP_READBACK_MSB, 0x00},
+	{MAX98397_R20BC_ADC_TEMP_READBACK_LSB, 0x00},
+	{MAX98397_R20BD_ADC_VDDH__READBACK_MSB, 0x00},
+	{MAX98397_R20BE_ADC_VDDH_READBACK_LSB, 0x00},
+	{MAX98396_R20BF_ADC_LO_VBAT_READBACK_LSB, 0x00},
+	{MAX98397_R20C3_ADC_LO_VDDH_READBACK_MSB, 0x00},
+	{MAX98397_R20C4_ADC_LO_VDDH_READBACK_LSB, 0x00},
+	{MAX98397_R20C5_MEAS_ADC_OPTIMAL_MODE, 0x04},
+	{MAX98396_R20C7_ADC_CFG, 0x00},
+	{MAX98396_R20D0_DHT_CFG1, 0x00},
+	{MAX98396_R20D1_LIMITER_CFG1, 0x08},
+	{MAX98396_R20D2_LIMITER_CFG2, 0x00},
+	{MAX98396_R20D3_DHT_CFG2, 0x14},
+	{MAX98396_R20D4_DHT_CFG3, 0x02},
+	{MAX98396_R20D5_DHT_CFG4, 0x04},
+	{MAX98396_R20D6_DHT_HYSTERESIS_CFG, 0x07},
+	{MAX98396_R20DF_DHT_EN, 0x00},
+	{MAX98396_R20E0_IV_SENSE_PATH_CFG, 0x04},
+	{MAX98396_R20E4_IV_SENSE_PATH_EN, 0x00},
+	{MAX98396_R20E5_BPE_STATE, 0x00},
+	{MAX98396_R20E6_BPE_L3_THRESH_MSB, 0x00},
+	{MAX98396_R20E7_BPE_L3_THRESH_LSB, 0x00},
+	{MAX98396_R20E8_BPE_L2_THRESH_MSB, 0x00},
+	{MAX98396_R20E9_BPE_L2_THRESH_LSB, 0x00},
+	{MAX98396_R20EA_BPE_L1_THRESH_MSB, 0x00},
+	{MAX98396_R20EB_BPE_L1_THRESH_LSB, 0x00},
+	{MAX98396_R20EC_BPE_L0_THRESH_MSB, 0x00},
+	{MAX98396_R20ED_BPE_L0_THRESH_LSB, 0x00},
+	{MAX98396_R20EE_BPE_L3_DWELL_HOLD_TIME, 0x00},
+	{MAX98396_R20EF_BPE_L2_DWELL_HOLD_TIME, 0x00},
+	{MAX98396_R20F0_BPE_L1_DWELL_HOLD_TIME, 0x00},
+	{MAX98396_R20F1_BPE_L0_HOLD_TIME, 0x00},
+	{MAX98396_R20F2_BPE_L3_ATTACK_REL_STEP, 0x00},
+	{MAX98396_R20F3_BPE_L2_ATTACK_REL_STEP, 0x00},
+	{MAX98396_R20F4_BPE_L1_ATTACK_REL_STEP, 0x00},
+	{MAX98396_R20F5_BPE_L0_ATTACK_REL_STEP, 0x00},
+	{MAX98396_R20F6_BPE_L3_MAX_GAIN_ATTN, 0x00},
+	{MAX98396_R20F7_BPE_L2_MAX_GAIN_ATTN, 0x00},
+	{MAX98396_R20F8_BPE_L1_MAX_GAIN_ATTN, 0x00},
+	{MAX98396_R20F9_BPE_L0_MAX_GAIN_ATTN, 0x00},
+	{MAX98396_R20FA_BPE_L3_ATT_REL_RATE, 0x00},
+	{MAX98396_R20FB_BPE_L2_ATT_REL_RATE, 0x00},
+	{MAX98396_R20FC_BPE_L1_ATT_REL_RATE, 0x00},
+	{MAX98396_R20FD_BPE_L0_ATT_REL_RATE, 0x00},
+	{MAX98396_R20FE_BPE_L3_LIMITER_CFG, 0x00},
+	{MAX98396_R20FF_BPE_L2_LIMITER_CFG, 0x00},
+	{MAX98396_R2100_BPE_L1_LIMITER_CFG, 0x00},
+	{MAX98396_R2101_BPE_L0_LIMITER_CFG, 0x00},
+	{MAX98396_R2102_BPE_L3_LIM_ATT_REL_RATE, 0x00},
+	{MAX98396_R2103_BPE_L2_LIM_ATT_REL_RATE, 0x00},
+	{MAX98396_R2104_BPE_L1_LIM_ATT_REL_RATE, 0x00},
+	{MAX98396_R2105_BPE_L0_LIM_ATT_REL_RATE, 0x00},
+	{MAX98396_R2106_BPE_THRESH_HYSTERESIS, 0x00},
+	{MAX98396_R2107_BPE_INFINITE_HOLD_CLR, 0x00},
+	{MAX98396_R2108_BPE_SUPPLY_SRC, 0x00},
+	{MAX98396_R2109_BPE_LOW_STATE, 0x00},
+	{MAX98396_R210A_BPE_LOW_GAIN, 0x00},
+	{MAX98396_R210B_BPE_LOW_LIMITER, 0x00},
+	{MAX98396_R210D_BPE_EN, 0x00},
+	{MAX98396_R210E_AUTO_RESTART, 0x00},
+	{MAX98396_R210F_GLOBAL_EN, 0x00},
+	{MAX98397_R22FF_REVISION_ID, 0x00},
+};
+
+static void max98396_global_enable_onoff(struct regmap *regmap, bool onoff)
+{
+	regmap_write(regmap, MAX98396_R210F_GLOBAL_EN, onoff ? 1 : 0);
+	usleep_range(11000, 12000);
+}
+
+static int max98396_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
+{
+	struct snd_soc_component *component = codec_dai->component;
+	struct max98396_priv *max98396 = snd_soc_component_get_drvdata(component);
+	unsigned int format = 0;
+	unsigned int bclk_pol = 0;
+	int ret, status;
+	int reg;
+	bool update = false;
+
+	dev_dbg(component->dev, "%s: fmt 0x%08X\n", __func__, fmt);
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		format = MAX98396_PCM_MODE_CFG_LRCLKEDGE;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		bclk_pol = MAX98396_PCM_MODE_CFG_BCLKEDGE;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		bclk_pol = MAX98396_PCM_MODE_CFG_BCLKEDGE;
+		format = MAX98396_PCM_MODE_CFG_LRCLKEDGE;
+		break;
+
+	default:
+		dev_err(component->dev, "DAI invert mode unsupported\n");
+		return -EINVAL;
+	}
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		format |= MAX98396_PCM_FORMAT_I2S;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		format |= MAX98396_PCM_FORMAT_LJ;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		format |= MAX98396_PCM_FORMAT_TDM_MODE1;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		format |= MAX98396_PCM_FORMAT_TDM_MODE0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = regmap_read(max98396->regmap, MAX98396_R210F_GLOBAL_EN, &status);
+	if (ret < 0)
+		return -EINVAL;
+
+	if (status) {
+		ret = regmap_read(max98396->regmap, MAX98396_R2041_PCM_MODE_CFG, &reg);
+		if (ret < 0)
+			return -EINVAL;
+		if (format != (reg & MAX98396_PCM_BCLKEDGE_BSEL_MASK)) {
+			update = true;
+		} else {
+			ret = regmap_read(max98396->regmap,
+					  MAX98396_R2042_PCM_CLK_SETUP, &reg);
+			if (ret < 0)
+				return -EINVAL;
+			if (bclk_pol != (reg & MAX98396_PCM_MODE_CFG_BCLKEDGE))
+				update = true;
+		}
+		/* GLOBAL_EN OFF prior to pcm mode, clock configuration change */
+		if (update)
+			max98396_global_enable_onoff(max98396->regmap, false);
+	}
+
+	regmap_update_bits(max98396->regmap,
+			   MAX98396_R2041_PCM_MODE_CFG,
+			   MAX98396_PCM_BCLKEDGE_BSEL_MASK,
+			   format);
+
+	regmap_update_bits(max98396->regmap,
+			   MAX98396_R2042_PCM_CLK_SETUP,
+			   MAX98396_PCM_MODE_CFG_BCLKEDGE,
+			   bclk_pol);
+
+	if (status && update)
+		max98396_global_enable_onoff(max98396->regmap, true);
+
+	return 0;
+}
+
+/* BCLKs per LRCLK */
+static const int bclk_sel_table[] = {
+	32, 48, 64, 96, 128, 192, 256, 384, 512, 320,
+};
+
+static int max98396_get_bclk_sel(int bclk)
+{
+	int i;
+	/* match BCLKs per LRCLK */
+	for (i = 0; i < ARRAY_SIZE(bclk_sel_table); i++) {
+		if (bclk_sel_table[i] == bclk)
+			return i + 2;
+	}
+	return 0;
+}
+
+static int max98396_set_clock(struct snd_soc_component *component,
+			      struct snd_pcm_hw_params *params)
+{
+	struct max98396_priv *max98396 = snd_soc_component_get_drvdata(component);
+	/* BCLK/LRCLK ratio calculation */
+	int blr_clk_ratio = params_channels(params) * max98396->ch_size;
+	int value;
+
+	if (!max98396->tdm_mode) {
+		/* BCLK configuration */
+		value = max98396_get_bclk_sel(blr_clk_ratio);
+		if (!value) {
+			dev_err(component->dev, "format unsupported %d\n",
+				params_format(params));
+			return -EINVAL;
+		}
+
+		regmap_update_bits(max98396->regmap,
+				   MAX98396_R2042_PCM_CLK_SETUP,
+				   MAX98396_PCM_CLK_SETUP_BSEL_MASK,
+				   value);
+	}
+
+	return 0;
+}
+
+static int max98396_dai_hw_params(struct snd_pcm_substream *substream,
+				  struct snd_pcm_hw_params *params,
+				  struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct max98396_priv *max98396 = snd_soc_component_get_drvdata(component);
+	unsigned int sampling_rate = 0;
+	unsigned int chan_sz = 0;
+	int ret, reg;
+	int status;
+	bool update = false;
+
+	/* pcm mode configuration */
+	switch (snd_pcm_format_width(params_format(params))) {
+	case 16:
+		chan_sz = MAX98396_PCM_MODE_CFG_CHANSZ_16;
+		break;
+	case 24:
+		chan_sz = MAX98396_PCM_MODE_CFG_CHANSZ_24;
+		break;
+	case 32:
+		chan_sz = MAX98396_PCM_MODE_CFG_CHANSZ_32;
+		break;
+	default:
+		dev_err(component->dev, "format unsupported %d\n",
+			params_format(params));
+		goto err;
+	}
+
+	max98396->ch_size = snd_pcm_format_width(params_format(params));
+
+	dev_dbg(component->dev, "format supported %d",
+		params_format(params));
+
+	/* sampling rate configuration */
+	switch (params_rate(params)) {
+	case 8000:
+		sampling_rate = MAX98396_PCM_SR_8000;
+		break;
+	case 11025:
+		sampling_rate = MAX98396_PCM_SR_11025;
+		break;
+	case 12000:
+		sampling_rate = MAX98396_PCM_SR_12000;
+		break;
+	case 16000:
+		sampling_rate = MAX98396_PCM_SR_16000;
+		break;
+	case 22050:
+		sampling_rate = MAX98396_PCM_SR_22050;
+		break;
+	case 24000:
+		sampling_rate = MAX98396_PCM_SR_24000;
+		break;
+	case 32000:
+		sampling_rate = MAX98396_PCM_SR_32000;
+		break;
+	case 44100:
+		sampling_rate = MAX98396_PCM_SR_44100;
+		break;
+	case 48000:
+		sampling_rate = MAX98396_PCM_SR_48000;
+		break;
+	case 88200:
+		sampling_rate = MAX98396_PCM_SR_88200;
+		break;
+	case 96000:
+		sampling_rate = MAX98396_PCM_SR_96000;
+		break;
+	case 192000:
+		sampling_rate = MAX98396_PCM_SR_192000;
+		break;
+	default:
+		dev_err(component->dev, "rate %d not supported\n",
+			params_rate(params));
+		goto err;
+	}
+
+	ret = regmap_read(max98396->regmap, MAX98396_R210F_GLOBAL_EN, &status);
+	if (ret < 0)
+		goto err;
+
+	if (status) {
+		ret = regmap_read(max98396->regmap, MAX98396_R2041_PCM_MODE_CFG, &reg);
+		if (ret < 0)
+			goto err;
+		if (chan_sz != (reg & MAX98396_PCM_MODE_CFG_CHANSZ_MASK)) {
+			update = true;
+		} else {
+			ret = regmap_read(max98396->regmap, MAX98396_R2043_PCM_SR_SETUP, &reg);
+			if (ret < 0)
+				goto err;
+			if (sampling_rate != (reg & MAX98396_PCM_SR_MASK))
+				update = true;
+		}
+
+		/* GLOBAL_EN OFF prior to channel size and sampling rate change */
+		if (update)
+			max98396_global_enable_onoff(max98396->regmap, false);
+	}
+
+	/* set channel size */
+	regmap_update_bits(max98396->regmap, MAX98396_R2041_PCM_MODE_CFG,
+			   MAX98396_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
+
+	/* set DAI_SR to correct LRCLK frequency */
+	regmap_update_bits(max98396->regmap, MAX98396_R2043_PCM_SR_SETUP,
+			   MAX98396_PCM_SR_MASK, sampling_rate);
+
+	/* set sampling rate of IV */
+	if (max98396->interleave_mode &&
+	    sampling_rate > MAX98396_PCM_SR_16000)
+		regmap_update_bits(max98396->regmap,
+				   MAX98396_R2043_PCM_SR_SETUP,
+				   MAX98396_IVADC_SR_MASK,
+				   (sampling_rate - 3)
+				   << MAX98396_IVADC_SR_SHIFT);
+	else
+		regmap_update_bits(max98396->regmap,
+				   MAX98396_R2043_PCM_SR_SETUP,
+				   MAX98396_IVADC_SR_MASK,
+				   sampling_rate << MAX98396_IVADC_SR_SHIFT);
+
+	ret = max98396_set_clock(component, params);
+
+	if (status && update)
+		max98396_global_enable_onoff(max98396->regmap, true);
+
+	return ret;
+
+err:
+	return -EINVAL;
+}
+
+static int max98396_dai_tdm_slot(struct snd_soc_dai *dai,
+				 unsigned int tx_mask, unsigned int rx_mask,
+				 int slots, int slot_width)
+{
+	struct snd_soc_component *component = dai->component;
+	struct max98396_priv *max98396 =
+		snd_soc_component_get_drvdata(component);
+	int bsel;
+	unsigned int chan_sz = 0;
+	int ret, status;
+	int reg;
+	bool update = false;
+
+	if (!tx_mask && !rx_mask && !slots && !slot_width)
+		max98396->tdm_mode = false;
+	else
+		max98396->tdm_mode = true;
+
+	/* BCLK configuration */
+	bsel = max98396_get_bclk_sel(slots * slot_width);
+	if (bsel == 0) {
+		dev_err(component->dev, "BCLK %d not supported\n",
+			slots * slot_width);
+		return -EINVAL;
+	}
+
+	/* Channel size configuration */
+	switch (slot_width) {
+	case 16:
+		chan_sz = MAX98396_PCM_MODE_CFG_CHANSZ_16;
+		break;
+	case 24:
+		chan_sz = MAX98396_PCM_MODE_CFG_CHANSZ_24;
+		break;
+	case 32:
+		chan_sz = MAX98396_PCM_MODE_CFG_CHANSZ_32;
+		break;
+	default:
+		dev_err(component->dev, "format unsupported %d\n",
+			slot_width);
+		return -EINVAL;
+	}
+
+	ret = regmap_read(max98396->regmap, MAX98396_R210F_GLOBAL_EN, &status);
+	if (ret < 0)
+		return -EINVAL;
+
+	if (status) {
+		ret = regmap_read(max98396->regmap, MAX98396_R2042_PCM_CLK_SETUP, &reg);
+		if (ret < 0)
+			return -EINVAL;
+		if (bsel != (reg & MAX98396_PCM_CLK_SETUP_BSEL_MASK)) {
+			update = true;
+		} else {
+			ret = regmap_read(max98396->regmap, MAX98396_R2041_PCM_MODE_CFG, &reg);
+			if (ret < 0)
+				return -EINVAL;
+			if (chan_sz != (reg & MAX98396_PCM_MODE_CFG_CHANSZ_MASK))
+				update = true;
+		}
+
+		/* GLOBAL_EN OFF prior to channel size and BCLK per LRCLK change */
+		if (update)
+			max98396_global_enable_onoff(max98396->regmap, false);
+	}
+
+	regmap_update_bits(max98396->regmap,
+			   MAX98396_R2042_PCM_CLK_SETUP,
+			   MAX98396_PCM_CLK_SETUP_BSEL_MASK,
+			   bsel);
+
+	regmap_update_bits(max98396->regmap,
+			   MAX98396_R2041_PCM_MODE_CFG,
+			   MAX98396_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
+
+	/* Rx slot configuration */
+	if (max98396->device_id == CODEC_TYPE_MAX98396) {
+		regmap_update_bits(max98396->regmap,
+				   MAX98396_R2056_PCM_RX_SRC2,
+				   MAX98396_PCM_DMIX_CH0_SRC_MASK,
+				   rx_mask);
+		regmap_update_bits(max98396->regmap,
+				   MAX98396_R2056_PCM_RX_SRC2,
+				   MAX98396_PCM_DMIX_CH1_SRC_MASK,
+				   rx_mask << MAX98396_PCM_DMIX_CH1_SHIFT);
+	} else {
+		regmap_update_bits(max98396->regmap,
+				   MAX98397_R2057_PCM_RX_SRC2,
+				   MAX98396_PCM_DMIX_CH0_SRC_MASK,
+				   rx_mask);
+		regmap_update_bits(max98396->regmap,
+				   MAX98397_R2057_PCM_RX_SRC2,
+				   MAX98396_PCM_DMIX_CH1_SRC_MASK,
+				   rx_mask << MAX98396_PCM_DMIX_CH1_SHIFT);
+	}
+
+	/* Tx slot Hi-Z configuration */
+	if (max98396->device_id == CODEC_TYPE_MAX98396) {
+		regmap_write(max98396->regmap,
+			     MAX98396_R2053_PCM_TX_HIZ_CTRL_8,
+			     ~tx_mask & 0xFF);
+		regmap_write(max98396->regmap,
+			     MAX98396_R2052_PCM_TX_HIZ_CTRL_7,
+			     (~tx_mask & 0xFF00) >> 8);
+	} else {
+		regmap_write(max98396->regmap,
+			     MAX98397_R2054_PCM_TX_HIZ_CTRL_8,
+			     ~tx_mask & 0xFF);
+		regmap_write(max98396->regmap,
+			     MAX98397_R2053_PCM_TX_HIZ_CTRL_7,
+			     (~tx_mask & 0xFF00) >> 8);
+	}
+
+	if (status && update)
+		max98396_global_enable_onoff(max98396->regmap, true);
+
+	return 0;
+}
+
+#define MAX98396_RATES SNDRV_PCM_RATE_8000_192000
+
+#define MAX98396_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+	SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+static const struct snd_soc_dai_ops max98396_dai_ops = {
+	.set_fmt = max98396_dai_set_fmt,
+	.hw_params = max98396_dai_hw_params,
+	.set_tdm_slot = max98396_dai_tdm_slot,
+};
+
+static int max98396_dac_event(struct snd_soc_dapm_widget *w,
+			      struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_component *component =
+		snd_soc_dapm_to_component(w->dapm);
+	struct max98396_priv *max98396 =
+		snd_soc_component_get_drvdata(component);
+
+	switch (event) {
+	case SND_SOC_DAPM_POST_PMU:
+		max98396_global_enable_onoff(max98396->regmap, true);
+		break;
+	case SND_SOC_DAPM_PRE_PMD:
+		max98396_global_enable_onoff(max98396->regmap, false);
+
+		max98396->tdm_mode = false;
+		break;
+	default:
+		return 0;
+	}
+	return 0;
+}
+
+static bool max98396_readable_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX98396_R2001_INT_RAW1 ... MAX98396_R2004_INT_RAW4:
+	case MAX98396_R2006_INT_STATE1 ... MAX98396_R2009_INT_STATE4:
+	case MAX98396_R200B_INT_FLAG1 ... MAX98396_R200E_INT_FLAG4:
+	case MAX98396_R2010_INT_EN1 ... MAX98396_R2013_INT_EN4:
+	case MAX98396_R2015_INT_FLAG_CLR1 ... MAX98396_R2018_INT_FLAG_CLR4:
+	case MAX98396_R201F_IRQ_CTRL ... MAX98396_R2024_THERM_FOLDBACK_SET:
+	case MAX98396_R2027_THERM_FOLDBACK_EN:
+	case MAX98396_R2030_NOISEGATE_MODE_CTRL:
+	case MAX98396_R2033_NOISEGATE_MODE_EN:
+	case MAX98396_R2038_CLK_MON_CTRL ... MAX98396_R2039_DATA_MON_CTRL:
+	case MAX98396_R203F_ENABLE_CTRLS ... MAX98396_R2053_PCM_TX_HIZ_CTRL_8:
+	case MAX98396_R2055_PCM_RX_SRC1 ... MAX98396_R2056_PCM_RX_SRC2:
+	case MAX98396_R2058_PCM_BYPASS_SRC:
+	case MAX98396_R205D_PCM_TX_SRC_EN ... MAX98396_R205F_PCM_TX_EN:
+	case MAX98396_R2070_ICC_RX_EN_A... MAX98396_R2072_ICC_TX_CTRL:
+	case MAX98396_R207F_ICC_EN:
+	case MAX98396_R2083_TONE_GEN_DC_CFG ... MAX98396_R2086_TONE_GEN_DC_LVL3:
+	case MAX98396_R208F_TONE_GEN_EN ... MAX98396_R209A_SPK_EDGE_CTRL:
+	case MAX98396_R209C_SPK_EDGE_CTRL1 ... MAX98396_R20A0_AMP_SUPPLY_CTL:
+	case MAX98396_R20AF_AMP_EN ... MAX98396_R20BF_ADC_LO_VBAT_READBACK_LSB:
+	case MAX98396_R20C7_ADC_CFG:
+	case MAX98396_R20D0_DHT_CFG1 ... MAX98396_R20D6_DHT_HYSTERESIS_CFG:
+	case MAX98396_R20DF_DHT_EN:
+	case MAX98396_R20E0_IV_SENSE_PATH_CFG:
+	case MAX98396_R20E4_IV_SENSE_PATH_EN
+		... MAX98396_R2106_BPE_THRESH_HYSTERESIS:
+	case MAX98396_R2108_BPE_SUPPLY_SRC ... MAX98396_R210B_BPE_LOW_LIMITER:
+	case MAX98396_R210D_BPE_EN ... MAX98396_R210F_GLOBAL_EN:
+	case MAX98396_R21FF_REVISION_ID:
+		return true;
+	default:
+		return false;
+	}
+};
+
+static bool max98396_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX98396_R2000_SW_RESET:
+	case MAX98396_R2001_INT_RAW1 ... MAX98396_R200E_INT_FLAG4:
+	case MAX98396_R2041_PCM_MODE_CFG:
+	case MAX98396_R20B6_ADC_PVDD_READBACK_MSB
+		... MAX98396_R20BF_ADC_LO_VBAT_READBACK_LSB:
+	case MAX98396_R20E5_BPE_STATE:
+	case MAX98396_R2109_BPE_LOW_STATE
+		... MAX98396_R210B_BPE_LOW_LIMITER:
+	case MAX98396_R210F_GLOBAL_EN:
+	case MAX98396_R21FF_REVISION_ID:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool max98397_readable_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX98396_R2001_INT_RAW1 ... MAX98396_R2004_INT_RAW4:
+	case MAX98396_R2006_INT_STATE1 ... MAX98396_R2009_INT_STATE4:
+	case MAX98396_R200B_INT_FLAG1 ... MAX98396_R200E_INT_FLAG4:
+	case MAX98396_R2010_INT_EN1 ... MAX98396_R2013_INT_EN4:
+	case MAX98396_R2015_INT_FLAG_CLR1 ... MAX98396_R2018_INT_FLAG_CLR4:
+	case MAX98396_R201F_IRQ_CTRL ... MAX98396_R2024_THERM_FOLDBACK_SET:
+	case MAX98396_R2027_THERM_FOLDBACK_EN:
+	case MAX98396_R2030_NOISEGATE_MODE_CTRL:
+	case MAX98396_R2033_NOISEGATE_MODE_EN:
+	case MAX98396_R2038_CLK_MON_CTRL ... MAX98397_R203A_SPK_MON_THRESH:
+	case MAX98396_R203F_ENABLE_CTRLS ... MAX98397_R2054_PCM_TX_HIZ_CTRL_8:
+	case MAX98397_R2056_PCM_RX_SRC1... MAX98396_R2058_PCM_BYPASS_SRC:
+	case MAX98396_R205D_PCM_TX_SRC_EN ... MAX98397_R2060_PCM_TX_SUPPLY_SEL:
+	case MAX98396_R2070_ICC_RX_EN_A... MAX98396_R2072_ICC_TX_CTRL:
+	case MAX98396_R207F_ICC_EN:
+	case MAX98396_R2083_TONE_GEN_DC_CFG ... MAX98396_R2086_TONE_GEN_DC_LVL3:
+	case MAX98396_R208F_TONE_GEN_EN ... MAX98396_R209F_BYPASS_PATH_CFG:
+	case MAX98396_R20AF_AMP_EN ... MAX98397_R20C5_MEAS_ADC_OPTIMAL_MODE:
+	case MAX98396_R20C7_ADC_CFG:
+	case MAX98396_R20D0_DHT_CFG1 ... MAX98396_R20D6_DHT_HYSTERESIS_CFG:
+	case MAX98396_R20DF_DHT_EN:
+	case MAX98396_R20E0_IV_SENSE_PATH_CFG:
+	case MAX98396_R20E4_IV_SENSE_PATH_EN
+		... MAX98396_R2106_BPE_THRESH_HYSTERESIS:
+	case MAX98396_R2108_BPE_SUPPLY_SRC ... MAX98396_R210B_BPE_LOW_LIMITER:
+	case MAX98396_R210D_BPE_EN ... MAX98396_R210F_GLOBAL_EN:
+	case MAX98397_R22FF_REVISION_ID:
+		return true;
+	default:
+		return false;
+	}
+};
+
+static bool max98397_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX98396_R2001_INT_RAW1 ... MAX98396_R200E_INT_FLAG4:
+	case MAX98396_R2041_PCM_MODE_CFG:
+	case MAX98397_R20B7_ADC_PVDD_READBACK_MSB
+		... MAX98397_R20C4_ADC_LO_VDDH_READBACK_LSB:
+	case MAX98396_R20E5_BPE_STATE:
+	case MAX98396_R2109_BPE_LOW_STATE
+		... MAX98396_R210B_BPE_LOW_LIMITER:
+	case MAX98396_R210F_GLOBAL_EN:
+	case MAX98397_R22FF_REVISION_ID:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const char * const max98396_op_mod_text[] = {
+	"DG", "PVDD", "VBAT",
+};
+
+static SOC_ENUM_SINGLE_DECL(max98396_op_mod_enum,
+			    MAX98396_R2098_SPK_CLS_DG_MODE,
+			    0, max98396_op_mod_text);
+
+static DECLARE_TLV_DB_SCALE(max98396_digital_tlv, -6350, 50, 1);
+static const DECLARE_TLV_DB_RANGE(max98396_spk_tlv,
+	0, 0x11, TLV_DB_SCALE_ITEM(400, 100, 0),
+);
+static DECLARE_TLV_DB_RANGE(max98397_digital_tlv,
+	0, 0x4A, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
+	0x4B, 0xFF, TLV_DB_SCALE_ITEM(-9000, 50, 0),
+);
+static const DECLARE_TLV_DB_RANGE(max98397_spk_tlv,
+	0, 0x15, TLV_DB_SCALE_ITEM(600, 100, 0),
+);
+
+static int max98396_mux_get(struct snd_kcontrol *kcontrol,
+			    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component =
+		snd_soc_dapm_kcontrol_component(kcontrol);
+	struct max98396_priv *max98396 = snd_soc_component_get_drvdata(component);
+	int reg, val;
+
+	if (max98396->device_id == CODEC_TYPE_MAX98396)
+		reg = MAX98396_R2055_PCM_RX_SRC1;
+	else
+		reg = MAX98397_R2056_PCM_RX_SRC1;
+
+	regmap_read(max98396->regmap, reg, &val);
+
+	ucontrol->value.enumerated.item[0] = val;
+
+	return 0;
+}
+
+static int max98396_mux_put(struct snd_kcontrol *kcontrol,
+			    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component =
+		snd_soc_dapm_kcontrol_component(kcontrol);
+	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
+	struct max98396_priv *max98396 = snd_soc_component_get_drvdata(component);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int *item = ucontrol->value.enumerated.item;
+	int reg, val;
+	int change;
+
+	if (item[0] >= e->items)
+		return -EINVAL;
+
+	val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
+
+	if (max98396->device_id == CODEC_TYPE_MAX98396)
+		reg = MAX98396_R2055_PCM_RX_SRC1;
+	else
+		reg = MAX98397_R2056_PCM_RX_SRC1;
+
+	change = snd_soc_component_test_bits(component, reg,
+					     MAX98396_PCM_RX_MASK, val);
+
+	if (change)
+		regmap_update_bits(max98396->regmap, reg,
+				   MAX98396_PCM_RX_MASK, val);
+
+	snd_soc_dapm_mux_update_power(dapm, kcontrol, item[0], e, NULL);
+
+	return change;
+}
+
+