root/sound/soc/codecs/cs35l41-lib.c
// SPDX-License-Identifier: GPL-2.0
//
// cs35l41-lib.c -- CS35L41 Common functions for HDA and ASoC Audio drivers
//
// Copyright 2017-2021 Cirrus Logic, Inc.
//
// Author: David Rhodes <david.rhodes@cirrus.com>
// Author: Lucas Tanure <lucas.tanure@cirrus.com>

#include <linux/dev_printk.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/firmware/cirrus/wmfw.h>

#include <sound/cs35l41.h>

#define CS35L41_FIRMWARE_OLD_VERSION 0x001C00 /* v0.28.0 */

static const struct reg_default cs35l41_reg[] = {
        { CS35L41_PWR_CTRL1,                    0x00000000 },
        { CS35L41_PWR_CTRL2,                    0x00000000 },
        { CS35L41_PWR_CTRL3,                    0x01000010 },
        { CS35L41_GPIO_PAD_CONTROL,             0x00000000 },
        { CS35L41_GLOBAL_CLK_CTRL,              0x00000003 },
        { CS35L41_TST_FS_MON0,                  0x00020016 },
        { CS35L41_BSTCVRT_COEFF,                0x00002424 },
        { CS35L41_BSTCVRT_SLOPE_LBST,           0x00007500 },
        { CS35L41_BSTCVRT_PEAK_CUR,             0x0000004A },
        { CS35L41_SP_ENABLES,                   0x00000000 },
        { CS35L41_SP_RATE_CTRL,                 0x00000028 },
        { CS35L41_SP_FORMAT,                    0x18180200 },
        { CS35L41_SP_HIZ_CTRL,                  0x00000002 },
        { CS35L41_SP_FRAME_TX_SLOT,             0x03020100 },
        { CS35L41_SP_FRAME_RX_SLOT,             0x00000100 },
        { CS35L41_SP_TX_WL,                     0x00000018 },
        { CS35L41_SP_RX_WL,                     0x00000018 },
        { CS35L41_DAC_PCM1_SRC,                 0x00000008 },
        { CS35L41_ASP_TX1_SRC,                  0x00000018 },
        { CS35L41_ASP_TX2_SRC,                  0x00000019 },
        { CS35L41_ASP_TX3_SRC,                  0x00000000 },
        { CS35L41_ASP_TX4_SRC,                  0x00000000 },
        { CS35L41_DSP1_RX1_SRC,                 0x00000008 },
        { CS35L41_DSP1_RX2_SRC,                 0x00000009 },
        { CS35L41_DSP1_RX3_SRC,                 0x00000018 },
        { CS35L41_DSP1_RX4_SRC,                 0x00000019 },
        { CS35L41_DSP1_RX5_SRC,                 0x00000020 },
        { CS35L41_DSP1_RX6_SRC,                 0x00000021 },
        { CS35L41_DSP1_RX7_SRC,                 0x0000003A },
        { CS35L41_DSP1_RX8_SRC,                 0x0000003B },
        { CS35L41_NGATE1_SRC,                   0x00000008 },
        { CS35L41_NGATE2_SRC,                   0x00000009 },
        { CS35L41_AMP_DIG_VOL_CTRL,             0x00008000 },
        { CS35L41_CLASSH_CFG,                   0x000B0405 },
        { CS35L41_WKFET_CFG,                    0x00000111 },
        { CS35L41_NG_CFG,                       0x00000033 },
        { CS35L41_AMP_GAIN_CTRL,                0x00000000 },
        { CS35L41_IRQ1_MASK1,                   0xFFFFFFFF },
        { CS35L41_IRQ1_MASK2,                   0xFFFFFFFF },
        { CS35L41_IRQ1_MASK3,                   0xFFFF87FF },
        { CS35L41_IRQ1_MASK4,                   0xFEFFFFFF },
        { CS35L41_GPIO1_CTRL1,                  0x81000001 },
        { CS35L41_GPIO2_CTRL1,                  0x81000001 },
        { CS35L41_MIXER_NGATE_CFG,              0x00000000 },
        { CS35L41_MIXER_NGATE_CH1_CFG,          0x00000303 },
        { CS35L41_MIXER_NGATE_CH2_CFG,          0x00000303 },
        { CS35L41_DSP1_CCM_CORE_CTRL,           0x00000101 },
};

static bool cs35l41_readable_reg(struct device *dev, unsigned int reg)
{
        switch (reg) {
        case CS35L41_DEVID:
        case CS35L41_REVID:
        case CS35L41_FABID:
        case CS35L41_RELID:
        case CS35L41_OTPID:
        case CS35L41_SFT_RESET:
        case CS35L41_TEST_KEY_CTL:
        case CS35L41_USER_KEY_CTL:
        case CS35L41_OTP_CTRL0:
        case CS35L41_OTP_CTRL3:
        case CS35L41_OTP_CTRL4:
        case CS35L41_OTP_CTRL5:
        case CS35L41_OTP_CTRL6:
        case CS35L41_OTP_CTRL7:
        case CS35L41_OTP_CTRL8:
        case CS35L41_PWR_CTRL1:
        case CS35L41_PWR_CTRL2:
        case CS35L41_PWR_CTRL3:
        case CS35L41_CTRL_OVRRIDE:
        case CS35L41_AMP_OUT_MUTE:
        case CS35L41_PROTECT_REL_ERR_IGN:
        case CS35L41_GPIO_PAD_CONTROL:
        case CS35L41_JTAG_CONTROL:
        case CS35L41_PWRMGT_CTL:
        case CS35L41_WAKESRC_CTL:
        case CS35L41_PWRMGT_STS:
        case CS35L41_PLL_CLK_CTRL:
        case CS35L41_DSP_CLK_CTRL:
        case CS35L41_GLOBAL_CLK_CTRL:
        case CS35L41_DATA_FS_SEL:
        case CS35L41_TST_FS_MON0:
        case CS35L41_MDSYNC_EN:
        case CS35L41_MDSYNC_TX_ID:
        case CS35L41_MDSYNC_PWR_CTRL:
        case CS35L41_MDSYNC_DATA_TX:
        case CS35L41_MDSYNC_TX_STATUS:
        case CS35L41_MDSYNC_DATA_RX:
        case CS35L41_MDSYNC_RX_STATUS:
        case CS35L41_MDSYNC_ERR_STATUS:
        case CS35L41_MDSYNC_SYNC_PTE2:
        case CS35L41_MDSYNC_SYNC_PTE3:
        case CS35L41_MDSYNC_SYNC_MSM_STATUS:
        case CS35L41_BSTCVRT_VCTRL1:
        case CS35L41_BSTCVRT_VCTRL2:
        case CS35L41_BSTCVRT_PEAK_CUR:
        case CS35L41_BSTCVRT_SFT_RAMP:
        case CS35L41_BSTCVRT_COEFF:
        case CS35L41_BSTCVRT_SLOPE_LBST:
        case CS35L41_BSTCVRT_SW_FREQ:
        case CS35L41_BSTCVRT_DCM_CTRL:
        case CS35L41_BSTCVRT_DCM_MODE_FORCE:
        case CS35L41_BSTCVRT_OVERVOLT_CTRL:
        case CS35L41_VI_VOL_POL:
        case CS35L41_DTEMP_WARN_THLD:
        case CS35L41_DTEMP_CFG:
        case CS35L41_DTEMP_EN:
        case CS35L41_VPVBST_FS_SEL:
        case CS35L41_SP_ENABLES:
        case CS35L41_SP_RATE_CTRL:
        case CS35L41_SP_FORMAT:
        case CS35L41_SP_HIZ_CTRL:
        case CS35L41_SP_FRAME_TX_SLOT:
        case CS35L41_SP_FRAME_RX_SLOT:
        case CS35L41_SP_TX_WL:
        case CS35L41_SP_RX_WL:
        case CS35L41_DAC_PCM1_SRC:
        case CS35L41_ASP_TX1_SRC:
        case CS35L41_ASP_TX2_SRC:
        case CS35L41_ASP_TX3_SRC:
        case CS35L41_ASP_TX4_SRC:
        case CS35L41_DSP1_RX1_SRC:
        case CS35L41_DSP1_RX2_SRC:
        case CS35L41_DSP1_RX3_SRC:
        case CS35L41_DSP1_RX4_SRC:
        case CS35L41_DSP1_RX5_SRC:
        case CS35L41_DSP1_RX6_SRC:
        case CS35L41_DSP1_RX7_SRC:
        case CS35L41_DSP1_RX8_SRC:
        case CS35L41_NGATE1_SRC:
        case CS35L41_NGATE2_SRC:
        case CS35L41_AMP_DIG_VOL_CTRL:
        case CS35L41_VPBR_CFG:
        case CS35L41_VBBR_CFG:
        case CS35L41_VPBR_STATUS:
        case CS35L41_VBBR_STATUS:
        case CS35L41_OVERTEMP_CFG:
        case CS35L41_AMP_ERR_VOL:
        case CS35L41_VOL_STATUS_TO_DSP:
        case CS35L41_CLASSH_CFG:
        case CS35L41_WKFET_CFG:
        case CS35L41_NG_CFG:
        case CS35L41_AMP_GAIN_CTRL:
        case CS35L41_DAC_MSM_CFG:
        case CS35L41_IRQ1_CFG:
        case CS35L41_IRQ1_STATUS:
        case CS35L41_IRQ1_STATUS1:
        case CS35L41_IRQ1_STATUS2:
        case CS35L41_IRQ1_STATUS3:
        case CS35L41_IRQ1_STATUS4:
        case CS35L41_IRQ1_RAW_STATUS1:
        case CS35L41_IRQ1_RAW_STATUS2:
        case CS35L41_IRQ1_RAW_STATUS3:
        case CS35L41_IRQ1_RAW_STATUS4:
        case CS35L41_IRQ1_MASK1:
        case CS35L41_IRQ1_MASK2:
        case CS35L41_IRQ1_MASK3:
        case CS35L41_IRQ1_MASK4:
        case CS35L41_IRQ1_FRC1:
        case CS35L41_IRQ1_FRC2:
        case CS35L41_IRQ1_FRC3:
        case CS35L41_IRQ1_FRC4:
        case CS35L41_IRQ1_EDGE1:
        case CS35L41_IRQ1_EDGE4:
        case CS35L41_IRQ1_POL1:
        case CS35L41_IRQ1_POL2:
        case CS35L41_IRQ1_POL3:
        case CS35L41_IRQ1_POL4:
        case CS35L41_IRQ1_DB3:
        case CS35L41_IRQ2_CFG:
        case CS35L41_IRQ2_STATUS:
        case CS35L41_IRQ2_STATUS1:
        case CS35L41_IRQ2_STATUS2:
        case CS35L41_IRQ2_STATUS3:
        case CS35L41_IRQ2_STATUS4:
        case CS35L41_IRQ2_RAW_STATUS1:
        case CS35L41_IRQ2_RAW_STATUS2:
        case CS35L41_IRQ2_RAW_STATUS3:
        case CS35L41_IRQ2_RAW_STATUS4:
        case CS35L41_IRQ2_MASK1:
        case CS35L41_IRQ2_MASK2:
        case CS35L41_IRQ2_MASK3:
        case CS35L41_IRQ2_MASK4:
        case CS35L41_IRQ2_FRC1:
        case CS35L41_IRQ2_FRC2:
        case CS35L41_IRQ2_FRC3:
        case CS35L41_IRQ2_FRC4:
        case CS35L41_IRQ2_EDGE1:
        case CS35L41_IRQ2_EDGE4:
        case CS35L41_IRQ2_POL1:
        case CS35L41_IRQ2_POL2:
        case CS35L41_IRQ2_POL3:
        case CS35L41_IRQ2_POL4:
        case CS35L41_IRQ2_DB3:
        case CS35L41_GPIO_STATUS1:
        case CS35L41_GPIO1_CTRL1:
        case CS35L41_GPIO2_CTRL1:
        case CS35L41_MIXER_NGATE_CFG:
        case CS35L41_MIXER_NGATE_CH1_CFG:
        case CS35L41_MIXER_NGATE_CH2_CFG:
        case CS35L41_DSP_MBOX_1 ... CS35L41_DSP_VIRT2_MBOX_8:
        case CS35L41_CLOCK_DETECT_1:
        case CS35L41_DIE_STS1:
        case CS35L41_DIE_STS2:
        case CS35L41_TEMP_CAL1:
        case CS35L41_TEMP_CAL2:
        case CS35L41_DSP1_TIMESTAMP_COUNT:
        case CS35L41_DSP1_SYS_ID:
        case CS35L41_DSP1_SYS_VERSION:
        case CS35L41_DSP1_SYS_CORE_ID:
        case CS35L41_DSP1_SYS_AHB_ADDR:
        case CS35L41_DSP1_SYS_XSRAM_SIZE:
        case CS35L41_DSP1_SYS_YSRAM_SIZE:
        case CS35L41_DSP1_SYS_PSRAM_SIZE:
        case CS35L41_DSP1_SYS_PM_BOOT_SIZE:
        case CS35L41_DSP1_SYS_FEATURES:
        case CS35L41_DSP1_SYS_FIR_FILTERS:
        case CS35L41_DSP1_SYS_LMS_FILTERS:
        case CS35L41_DSP1_SYS_XM_BANK_SIZE:
        case CS35L41_DSP1_SYS_YM_BANK_SIZE:
        case CS35L41_DSP1_SYS_PM_BANK_SIZE:
        case CS35L41_DSP1_RX1_RATE:
        case CS35L41_DSP1_RX2_RATE:
        case CS35L41_DSP1_RX3_RATE:
        case CS35L41_DSP1_RX4_RATE:
        case CS35L41_DSP1_RX5_RATE:
        case CS35L41_DSP1_RX6_RATE:
        case CS35L41_DSP1_RX7_RATE:
        case CS35L41_DSP1_RX8_RATE:
        case CS35L41_DSP1_TX1_RATE:
        case CS35L41_DSP1_TX2_RATE:
        case CS35L41_DSP1_TX3_RATE:
        case CS35L41_DSP1_TX4_RATE:
        case CS35L41_DSP1_TX5_RATE:
        case CS35L41_DSP1_TX6_RATE:
        case CS35L41_DSP1_TX7_RATE:
        case CS35L41_DSP1_TX8_RATE:
        case CS35L41_DSP1_SCRATCH1:
        case CS35L41_DSP1_SCRATCH2:
        case CS35L41_DSP1_SCRATCH3:
        case CS35L41_DSP1_SCRATCH4:
        case CS35L41_DSP1_CCM_CORE_CTRL:
        case CS35L41_DSP1_CCM_CLK_OVERRIDE:
        case CS35L41_DSP1_XM_MSTR_EN:
        case CS35L41_DSP1_XM_CORE_PRI:
        case CS35L41_DSP1_XM_AHB_PACK_PL_PRI:
        case CS35L41_DSP1_XM_AHB_UP_PL_PRI:
        case CS35L41_DSP1_XM_ACCEL_PL0_PRI:
        case CS35L41_DSP1_XM_NPL0_PRI:
        case CS35L41_DSP1_YM_MSTR_EN:
        case CS35L41_DSP1_YM_CORE_PRI:
        case CS35L41_DSP1_YM_AHB_PACK_PL_PRI:
        case CS35L41_DSP1_YM_AHB_UP_PL_PRI:
        case CS35L41_DSP1_YM_ACCEL_PL0_PRI:
        case CS35L41_DSP1_YM_NPL0_PRI:
        case CS35L41_DSP1_MPU_XM_ACCESS0:
        case CS35L41_DSP1_MPU_YM_ACCESS0:
        case CS35L41_DSP1_MPU_WNDW_ACCESS0:
        case CS35L41_DSP1_MPU_XREG_ACCESS0:
        case CS35L41_DSP1_MPU_YREG_ACCESS0:
        case CS35L41_DSP1_MPU_XM_ACCESS1:
        case CS35L41_DSP1_MPU_YM_ACCESS1:
        case CS35L41_DSP1_MPU_WNDW_ACCESS1:
        case CS35L41_DSP1_MPU_XREG_ACCESS1:
        case CS35L41_DSP1_MPU_YREG_ACCESS1:
        case CS35L41_DSP1_MPU_XM_ACCESS2:
        case CS35L41_DSP1_MPU_YM_ACCESS2:
        case CS35L41_DSP1_MPU_WNDW_ACCESS2:
        case CS35L41_DSP1_MPU_XREG_ACCESS2:
        case CS35L41_DSP1_MPU_YREG_ACCESS2:
        case CS35L41_DSP1_MPU_XM_ACCESS3:
        case CS35L41_DSP1_MPU_YM_ACCESS3:
        case CS35L41_DSP1_MPU_WNDW_ACCESS3:
        case CS35L41_DSP1_MPU_XREG_ACCESS3:
        case CS35L41_DSP1_MPU_YREG_ACCESS3:
        case CS35L41_DSP1_MPU_XM_VIO_ADDR:
        case CS35L41_DSP1_MPU_XM_VIO_STATUS:
        case CS35L41_DSP1_MPU_YM_VIO_ADDR:
        case CS35L41_DSP1_MPU_YM_VIO_STATUS:
        case CS35L41_DSP1_MPU_PM_VIO_ADDR:
        case CS35L41_DSP1_MPU_PM_VIO_STATUS:
        case CS35L41_DSP1_MPU_LOCK_CONFIG:
        case CS35L41_DSP1_MPU_WDT_RST_CTRL:
        case CS35L41_OTP_TRIM_1:
        case CS35L41_OTP_TRIM_2:
        case CS35L41_OTP_TRIM_3:
        case CS35L41_OTP_TRIM_4:
        case CS35L41_OTP_TRIM_5:
        case CS35L41_OTP_TRIM_6:
        case CS35L41_OTP_TRIM_7:
        case CS35L41_OTP_TRIM_8:
        case CS35L41_OTP_TRIM_9:
        case CS35L41_OTP_TRIM_10:
        case CS35L41_OTP_TRIM_11:
        case CS35L41_OTP_TRIM_12:
        case CS35L41_OTP_TRIM_13:
        case CS35L41_OTP_TRIM_14:
        case CS35L41_OTP_TRIM_15:
        case CS35L41_OTP_TRIM_16:
        case CS35L41_OTP_TRIM_17:
        case CS35L41_OTP_TRIM_18:
        case CS35L41_OTP_TRIM_19:
        case CS35L41_OTP_TRIM_20:
        case CS35L41_OTP_TRIM_21:
        case CS35L41_OTP_TRIM_22:
        case CS35L41_OTP_TRIM_23:
        case CS35L41_OTP_TRIM_24:
        case CS35L41_OTP_TRIM_25:
        case CS35L41_OTP_TRIM_26:
        case CS35L41_OTP_TRIM_27:
        case CS35L41_OTP_TRIM_28:
        case CS35L41_OTP_TRIM_29:
        case CS35L41_OTP_TRIM_30:
        case CS35L41_OTP_TRIM_31:
        case CS35L41_OTP_TRIM_32:
        case CS35L41_OTP_TRIM_33:
        case CS35L41_OTP_TRIM_34:
        case CS35L41_OTP_TRIM_35:
        case CS35L41_OTP_TRIM_36:
        case CS35L41_OTP_MEM0 ... CS35L41_OTP_MEM31:
        case CS35L41_DSP1_XMEM_PACK_0 ... CS35L41_DSP1_XMEM_PACK_3068:
        case CS35L41_DSP1_XMEM_UNPACK32_0 ... CS35L41_DSP1_XMEM_UNPACK32_2046:
        case CS35L41_DSP1_XMEM_UNPACK24_0 ... CS35L41_DSP1_XMEM_UNPACK24_4093:
        case CS35L41_DSP1_YMEM_PACK_0 ... CS35L41_DSP1_YMEM_PACK_1532:
        case CS35L41_DSP1_YMEM_UNPACK32_0 ... CS35L41_DSP1_YMEM_UNPACK32_1022:
        case CS35L41_DSP1_YMEM_UNPACK24_0 ... CS35L41_DSP1_YMEM_UNPACK24_2045:
        case CS35L41_DSP1_PMEM_0 ... CS35L41_DSP1_PMEM_5114:
        /*test regs*/
        case CS35L41_PLL_OVR:
        case CS35L41_BST_TEST_DUTY:
        case CS35L41_DIGPWM_IOCTRL:
                return true;
        default:
                return false;
        }
}

static bool cs35l41_precious_reg(struct device *dev, unsigned int reg)
{
        switch (reg) {
        case CS35L41_TEST_KEY_CTL:
        case CS35L41_USER_KEY_CTL:
        case CS35L41_OTP_MEM0 ... CS35L41_OTP_MEM31:
        case CS35L41_TST_FS_MON0:
        case CS35L41_DSP1_XMEM_PACK_0 ... CS35L41_DSP1_XMEM_PACK_3068:
        case CS35L41_DSP1_YMEM_PACK_0 ... CS35L41_DSP1_YMEM_PACK_1532:
        case CS35L41_DSP1_PMEM_0 ... CS35L41_DSP1_PMEM_5114:
                return true;
        default:
                return false;
        }
}

static bool cs35l41_volatile_reg(struct device *dev, unsigned int reg)
{
        switch (reg) {
        case CS35L41_DEVID:
        case CS35L41_SFT_RESET:
        case CS35L41_FABID:
        case CS35L41_REVID:
        case CS35L41_OTPID:
        case CS35L41_TEST_KEY_CTL:
        case CS35L41_USER_KEY_CTL:
        case CS35L41_PWRMGT_CTL:
        case CS35L41_WAKESRC_CTL:
        case CS35L41_PWRMGT_STS:
        case CS35L41_DTEMP_EN:
        case CS35L41_IRQ1_STATUS:
        case CS35L41_IRQ1_STATUS1:
        case CS35L41_IRQ1_STATUS2:
        case CS35L41_IRQ1_STATUS3:
        case CS35L41_IRQ1_STATUS4:
        case CS35L41_IRQ1_RAW_STATUS1:
        case CS35L41_IRQ1_RAW_STATUS2:
        case CS35L41_IRQ1_RAW_STATUS3:
        case CS35L41_IRQ1_RAW_STATUS4:
        case CS35L41_IRQ2_STATUS:
        case CS35L41_IRQ2_STATUS1:
        case CS35L41_IRQ2_STATUS2:
        case CS35L41_IRQ2_STATUS3:
        case CS35L41_IRQ2_STATUS4:
        case CS35L41_IRQ2_RAW_STATUS1:
        case CS35L41_IRQ2_RAW_STATUS2:
        case CS35L41_IRQ2_RAW_STATUS3:
        case CS35L41_IRQ2_RAW_STATUS4:
        case CS35L41_GPIO_STATUS1:
        case CS35L41_DSP_MBOX_1 ... CS35L41_DSP_VIRT2_MBOX_8:
        case CS35L41_DSP1_XMEM_PACK_0 ... CS35L41_DSP1_XMEM_PACK_3068:
        case CS35L41_DSP1_XMEM_UNPACK32_0 ... CS35L41_DSP1_XMEM_UNPACK32_2046:
        case CS35L41_DSP1_XMEM_UNPACK24_0 ... CS35L41_DSP1_XMEM_UNPACK24_4093:
        case CS35L41_DSP1_YMEM_PACK_0 ... CS35L41_DSP1_YMEM_PACK_1532:
        case CS35L41_DSP1_YMEM_UNPACK32_0 ... CS35L41_DSP1_YMEM_UNPACK32_1022:
        case CS35L41_DSP1_YMEM_UNPACK24_0 ... CS35L41_DSP1_YMEM_UNPACK24_2045:
        case CS35L41_DSP1_PMEM_0 ... CS35L41_DSP1_PMEM_5114:
        case CS35L41_DSP1_SCRATCH1:
        case CS35L41_DSP1_SCRATCH2:
        case CS35L41_DSP1_SCRATCH3:
        case CS35L41_DSP1_SCRATCH4:
        case CS35L41_DSP1_CCM_CLK_OVERRIDE ... CS35L41_DSP1_WDT_STATUS:
        case CS35L41_OTP_MEM0 ... CS35L41_OTP_MEM31:
                return true;
        default:
                return false;
        }
}

static const struct cs35l41_otp_packed_element_t otp_map_1[] = {
        /* addr         shift   size */
        { 0x00002030,   0,      4 }, /*TRIM_OSC_FREQ_TRIM*/
        { 0x00002030,   7,      1 }, /*TRIM_OSC_TRIM_DONE*/
        { 0x0000208c,   24,     6 }, /*TST_DIGREG_VREF_TRIM*/
        { 0x00002090,   14,     4 }, /*TST_REF_TRIM*/
        { 0x00002090,   10,     4 }, /*TST_REF_TEMPCO_TRIM*/
        { 0x0000300C,   11,     4 }, /*PLL_LDOA_TST_VREF_TRIM*/
        { 0x0000394C,   23,     2 }, /*BST_ATEST_CM_VOFF*/
        { 0x00003950,   0,      7 }, /*BST_ATRIM_IADC_OFFSET*/
        { 0x00003950,   8,      7 }, /*BST_ATRIM_IADC_GAIN1*/
        { 0x00003950,   16,     8 }, /*BST_ATRIM_IPKCOMP_OFFSET1*/
        { 0x00003950,   24,     8 }, /*BST_ATRIM_IPKCOMP_GAIN1*/
        { 0x00003954,   0,      7 }, /*BST_ATRIM_IADC_OFFSET2*/
        { 0x00003954,   8,      7 }, /*BST_ATRIM_IADC_GAIN2*/
        { 0x00003954,   16,     8 }, /*BST_ATRIM_IPKCOMP_OFFSET2*/
        { 0x00003954,   24,     8 }, /*BST_ATRIM_IPKCOMP_GAIN2*/
        { 0x00003958,   0,      7 }, /*BST_ATRIM_IADC_OFFSET3*/
        { 0x00003958,   8,      7 }, /*BST_ATRIM_IADC_GAIN3*/
        { 0x00003958,   16,     8 }, /*BST_ATRIM_IPKCOMP_OFFSET3*/
        { 0x00003958,   24,     8 }, /*BST_ATRIM_IPKCOMP_GAIN3*/
        { 0x0000395C,   0,      7 }, /*BST_ATRIM_IADC_OFFSET4*/
        { 0x0000395C,   8,      7 }, /*BST_ATRIM_IADC_GAIN4*/
        { 0x0000395C,   16,     8 }, /*BST_ATRIM_IPKCOMP_OFFSET4*/
        { 0x0000395C,   24,     8 }, /*BST_ATRIM_IPKCOMP_GAIN4*/
        { 0x0000416C,   0,      8 }, /*VMON_GAIN_OTP_VAL*/
        { 0x00004160,   0,      7 }, /*VMON_OFFSET_OTP_VAL*/
        { 0x0000416C,   8,      8 }, /*IMON_GAIN_OTP_VAL*/
        { 0x00004160,   16,     10 }, /*IMON_OFFSET_OTP_VAL*/
        { 0x0000416C,   16,     12 }, /*VMON_CM_GAIN_OTP_VAL*/
        { 0x0000416C,   28,     1 }, /*VMON_CM_GAIN_SIGN_OTP_VAL*/
        { 0x00004170,   0,      6 }, /*IMON_CAL_TEMPCO_OTP_VAL*/
        { 0x00004170,   6,      1 }, /*IMON_CAL_TEMPCO_SIGN_OTP*/
        { 0x00004170,   8,      6 }, /*IMON_CAL_TEMPCO2_OTP_VAL*/
        { 0x00004170,   14,     1 }, /*IMON_CAL_TEMPCO2_DN_UPB_OTP_VAL*/
        { 0x00004170,   16,     9 }, /*IMON_CAL_TEMPCO_TBASE_OTP_VAL*/
        { 0x00004360,   0,      5 }, /*TEMP_GAIN_OTP_VAL*/
        { 0x00004360,   6,      9 }, /*TEMP_OFFSET_OTP_VAL*/
        { 0x00004448,   0,      8 }, /*VP_SARADC_OFFSET*/
        { 0x00004448,   8,      8 }, /*VP_GAIN_INDEX*/
        { 0x00004448,   16,     8 }, /*VBST_SARADC_OFFSET*/
        { 0x00004448,   24,     8 }, /*VBST_GAIN_INDEX*/
        { 0x0000444C,   0,      3 }, /*ANA_SELINVREF*/
        { 0x00006E30,   0,      5 }, /*GAIN_ERR_COEFF_0*/
        { 0x00006E30,   8,      5 }, /*GAIN_ERR_COEFF_1*/
        { 0x00006E30,   16,     5 }, /*GAIN_ERR_COEFF_2*/
        { 0x00006E30,   24,     5 }, /*GAIN_ERR_COEFF_3*/
        { 0x00006E34,   0,      5 }, /*GAIN_ERR_COEFF_4*/
        { 0x00006E34,   8,      5 }, /*GAIN_ERR_COEFF_5*/
        { 0x00006E34,   16,     5 }, /*GAIN_ERR_COEFF_6*/
        { 0x00006E34,   24,     5 }, /*GAIN_ERR_COEFF_7*/
        { 0x00006E38,   0,      5 }, /*GAIN_ERR_COEFF_8*/
        { 0x00006E38,   8,      5 }, /*GAIN_ERR_COEFF_9*/
        { 0x00006E38,   16,     5 }, /*GAIN_ERR_COEFF_10*/
        { 0x00006E38,   24,     5 }, /*GAIN_ERR_COEFF_11*/
        { 0x00006E3C,   0,      5 }, /*GAIN_ERR_COEFF_12*/
        { 0x00006E3C,   8,      5 }, /*GAIN_ERR_COEFF_13*/
        { 0x00006E3C,   16,     5 }, /*GAIN_ERR_COEFF_14*/
        { 0x00006E3C,   24,     5 }, /*GAIN_ERR_COEFF_15*/
        { 0x00006E40,   0,      5 }, /*GAIN_ERR_COEFF_16*/
        { 0x00006E40,   8,      5 }, /*GAIN_ERR_COEFF_17*/
        { 0x00006E40,   16,     5 }, /*GAIN_ERR_COEFF_18*/
        { 0x00006E40,   24,     5 }, /*GAIN_ERR_COEFF_19*/
        { 0x00006E44,   0,      5 }, /*GAIN_ERR_COEFF_20*/
        { 0x00006E48,   0,      10 }, /*VOFF_GAIN_0*/
        { 0x00006E48,   10,     10 }, /*VOFF_GAIN_1*/
        { 0x00006E48,   20,     10 }, /*VOFF_GAIN_2*/
        { 0x00006E4C,   0,      10 }, /*VOFF_GAIN_3*/
        { 0x00006E4C,   10,     10 }, /*VOFF_GAIN_4*/
        { 0x00006E4C,   20,     10 }, /*VOFF_GAIN_5*/
        { 0x00006E50,   0,      10 }, /*VOFF_GAIN_6*/
        { 0x00006E50,   10,     10 }, /*VOFF_GAIN_7*/
        { 0x00006E50,   20,     10 }, /*VOFF_GAIN_8*/
        { 0x00006E54,   0,      10 }, /*VOFF_GAIN_9*/
        { 0x00006E54,   10,     10 }, /*VOFF_GAIN_10*/
        { 0x00006E54,   20,     10 }, /*VOFF_GAIN_11*/
        { 0x00006E58,   0,      10 }, /*VOFF_GAIN_12*/
        { 0x00006E58,   10,     10 }, /*VOFF_GAIN_13*/
        { 0x00006E58,   20,     10 }, /*VOFF_GAIN_14*/
        { 0x00006E5C,   0,      10 }, /*VOFF_GAIN_15*/
        { 0x00006E5C,   10,     10 }, /*VOFF_GAIN_16*/
        { 0x00006E5C,   20,     10 }, /*VOFF_GAIN_17*/
        { 0x00006E60,   0,      10 }, /*VOFF_GAIN_18*/
        { 0x00006E60,   10,     10 }, /*VOFF_GAIN_19*/
        { 0x00006E60,   20,     10 }, /*VOFF_GAIN_20*/
        { 0x00006E64,   0,      10 }, /*VOFF_INT1*/
        { 0x00007418,   7,      5 }, /*DS_SPK_INT1_CAP_TRIM*/
        { 0x0000741C,   0,      5 }, /*DS_SPK_INT2_CAP_TRIM*/
        { 0x0000741C,   11,     4 }, /*DS_SPK_LPF_CAP_TRIM*/
        { 0x0000741C,   19,     4 }, /*DS_SPK_QUAN_CAP_TRIM*/
        { 0x00007434,   17,     1 }, /*FORCE_CAL*/
        { 0x00007434,   18,     7 }, /*CAL_OVERRIDE*/
        { 0x00007068,   0,      9 }, /*MODIX*/
        { 0x0000410C,   7,      1 }, /*VIMON_DLY_NOT_COMB*/
        { 0x0000400C,   0,      7 }, /*VIMON_DLY*/
        { 0x00000000,   0,      1 }, /*extra bit*/
        { 0x00017040,   0,      8 }, /*X_COORDINATE*/
        { 0x00017040,   8,      8 }, /*Y_COORDINATE*/
        { 0x00017040,   16,     8 }, /*WAFER_ID*/
        { 0x00017040,   24,     8 }, /*DVS*/
        { 0x00017044,   0,      24 }, /*LOT_NUMBER*/
};

static const struct cs35l41_otp_packed_element_t otp_map_2[] = {
        /* addr         shift   size */
        { 0x00002030,   0,      4 }, /*TRIM_OSC_FREQ_TRIM*/
        { 0x00002030,   7,      1 }, /*TRIM_OSC_TRIM_DONE*/
        { 0x0000208c,   24,     6 }, /*TST_DIGREG_VREF_TRIM*/
        { 0x00002090,   14,     4 }, /*TST_REF_TRIM*/
        { 0x00002090,   10,     4 }, /*TST_REF_TEMPCO_TRIM*/
        { 0x0000300C,   11,     4 }, /*PLL_LDOA_TST_VREF_TRIM*/
        { 0x0000394C,   23,     2 }, /*BST_ATEST_CM_VOFF*/
        { 0x00003950,   0,      7 }, /*BST_ATRIM_IADC_OFFSET*/
        { 0x00003950,   8,      7 }, /*BST_ATRIM_IADC_GAIN1*/
        { 0x00003950,   16,     8 }, /*BST_ATRIM_IPKCOMP_OFFSET1*/
        { 0x00003950,   24,     8 }, /*BST_ATRIM_IPKCOMP_GAIN1*/
        { 0x00003954,   0,      7 }, /*BST_ATRIM_IADC_OFFSET2*/
        { 0x00003954,   8,      7 }, /*BST_ATRIM_IADC_GAIN2*/
        { 0x00003954,   16,     8 }, /*BST_ATRIM_IPKCOMP_OFFSET2*/
        { 0x00003954,   24,     8 }, /*BST_ATRIM_IPKCOMP_GAIN2*/
        { 0x00003958,   0,      7 }, /*BST_ATRIM_IADC_OFFSET3*/
        { 0x00003958,   8,      7 }, /*BST_ATRIM_IADC_GAIN3*/
        { 0x00003958,   16,     8 }, /*BST_ATRIM_IPKCOMP_OFFSET3*/
        { 0x00003958,   24,     8 }, /*BST_ATRIM_IPKCOMP_GAIN3*/
        { 0x0000395C,   0,      7 }, /*BST_ATRIM_IADC_OFFSET4*/
        { 0x0000395C,   8,      7 }, /*BST_ATRIM_IADC_GAIN4*/
        { 0x0000395C,   16,     8 }, /*BST_ATRIM_IPKCOMP_OFFSET4*/
        { 0x0000395C,   24,     8 }, /*BST_ATRIM_IPKCOMP_GAIN4*/
        { 0x0000416C,   0,      8 }, /*VMON_GAIN_OTP_VAL*/
        { 0x00004160,   0,      7 }, /*VMON_OFFSET_OTP_VAL*/
        { 0x0000416C,   8,      8 }, /*IMON_GAIN_OTP_VAL*/
        { 0x00004160,   16,     10 }, /*IMON_OFFSET_OTP_VAL*/
        { 0x0000416C,   16,     12 }, /*VMON_CM_GAIN_OTP_VAL*/
        { 0x0000416C,   28,     1 }, /*VMON_CM_GAIN_SIGN_OTP_VAL*/
        { 0x00004170,   0,      6 }, /*IMON_CAL_TEMPCO_OTP_VAL*/
        { 0x00004170,   6,      1 }, /*IMON_CAL_TEMPCO_SIGN_OTP*/
        { 0x00004170,   8,      6 }, /*IMON_CAL_TEMPCO2_OTP_VAL*/
        { 0x00004170,   14,     1 }, /*IMON_CAL_TEMPCO2_DN_UPB_OTP_VAL*/
        { 0x00004170,   16,     9 }, /*IMON_CAL_TEMPCO_TBASE_OTP_VAL*/
        { 0x00004360,   0,      5 }, /*TEMP_GAIN_OTP_VAL*/
        { 0x00004360,   6,      9 }, /*TEMP_OFFSET_OTP_VAL*/
        { 0x00004448,   0,      8 }, /*VP_SARADC_OFFSET*/
        { 0x00004448,   8,      8 }, /*VP_GAIN_INDEX*/
        { 0x00004448,   16,     8 }, /*VBST_SARADC_OFFSET*/
        { 0x00004448,   24,     8 }, /*VBST_GAIN_INDEX*/
        { 0x0000444C,   0,      3 }, /*ANA_SELINVREF*/
        { 0x00006E30,   0,      5 }, /*GAIN_ERR_COEFF_0*/
        { 0x00006E30,   8,      5 }, /*GAIN_ERR_COEFF_1*/
        { 0x00006E30,   16,     5 }, /*GAIN_ERR_COEFF_2*/
        { 0x00006E30,   24,     5 }, /*GAIN_ERR_COEFF_3*/
        { 0x00006E34,   0,      5 }, /*GAIN_ERR_COEFF_4*/
        { 0x00006E34,   8,      5 }, /*GAIN_ERR_COEFF_5*/
        { 0x00006E34,   16,     5 }, /*GAIN_ERR_COEFF_6*/
        { 0x00006E34,   24,     5 }, /*GAIN_ERR_COEFF_7*/
        { 0x00006E38,   0,      5 }, /*GAIN_ERR_COEFF_8*/
        { 0x00006E38,   8,      5 }, /*GAIN_ERR_COEFF_9*/
        { 0x00006E38,   16,     5 }, /*GAIN_ERR_COEFF_10*/
        { 0x00006E38,   24,     5 }, /*GAIN_ERR_COEFF_11*/
        { 0x00006E3C,   0,      5 }, /*GAIN_ERR_COEFF_12*/
        { 0x00006E3C,   8,      5 }, /*GAIN_ERR_COEFF_13*/
        { 0x00006E3C,   16,     5 }, /*GAIN_ERR_COEFF_14*/
        { 0x00006E3C,   24,     5 }, /*GAIN_ERR_COEFF_15*/
        { 0x00006E40,   0,      5 }, /*GAIN_ERR_COEFF_16*/
        { 0x00006E40,   8,      5 }, /*GAIN_ERR_COEFF_17*/
        { 0x00006E40,   16,     5 }, /*GAIN_ERR_COEFF_18*/
        { 0x00006E40,   24,     5 }, /*GAIN_ERR_COEFF_19*/
        { 0x00006E44,   0,      5 }, /*GAIN_ERR_COEFF_20*/
        { 0x00006E48,   0,      10 }, /*VOFF_GAIN_0*/
        { 0x00006E48,   10,     10 }, /*VOFF_GAIN_1*/
        { 0x00006E48,   20,     10 }, /*VOFF_GAIN_2*/
        { 0x00006E4C,   0,      10 }, /*VOFF_GAIN_3*/
        { 0x00006E4C,   10,     10 }, /*VOFF_GAIN_4*/
        { 0x00006E4C,   20,     10 }, /*VOFF_GAIN_5*/
        { 0x00006E50,   0,      10 }, /*VOFF_GAIN_6*/
        { 0x00006E50,   10,     10 }, /*VOFF_GAIN_7*/
        { 0x00006E50,   20,     10 }, /*VOFF_GAIN_8*/
        { 0x00006E54,   0,      10 }, /*VOFF_GAIN_9*/
        { 0x00006E54,   10,     10 }, /*VOFF_GAIN_10*/
        { 0x00006E54,   20,     10 }, /*VOFF_GAIN_11*/
        { 0x00006E58,   0,      10 }, /*VOFF_GAIN_12*/
        { 0x00006E58,   10,     10 }, /*VOFF_GAIN_13*/
        { 0x00006E58,   20,     10 }, /*VOFF_GAIN_14*/
        { 0x00006E5C,   0,      10 }, /*VOFF_GAIN_15*/
        { 0x00006E5C,   10,     10 }, /*VOFF_GAIN_16*/
        { 0x00006E5C,   20,     10 }, /*VOFF_GAIN_17*/
        { 0x00006E60,   0,      10 }, /*VOFF_GAIN_18*/
        { 0x00006E60,   10,     10 }, /*VOFF_GAIN_19*/
        { 0x00006E60,   20,     10 }, /*VOFF_GAIN_20*/
        { 0x00006E64,   0,      10 }, /*VOFF_INT1*/
        { 0x00007418,   7,      5 }, /*DS_SPK_INT1_CAP_TRIM*/
        { 0x0000741C,   0,      5 }, /*DS_SPK_INT2_CAP_TRIM*/
        { 0x0000741C,   11,     4 }, /*DS_SPK_LPF_CAP_TRIM*/
        { 0x0000741C,   19,     4 }, /*DS_SPK_QUAN_CAP_TRIM*/
        { 0x00007434,   17,     1 }, /*FORCE_CAL*/
        { 0x00007434,   18,     7 }, /*CAL_OVERRIDE*/
        { 0x00007068,   0,      9 }, /*MODIX*/
        { 0x0000410C,   7,      1 }, /*VIMON_DLY_NOT_COMB*/
        { 0x0000400C,   0,      7 }, /*VIMON_DLY*/
        { 0x00004000,   11,     1 }, /*VMON_POL*/
        { 0x00017040,   0,      8 }, /*X_COORDINATE*/
        { 0x00017040,   8,      8 }, /*Y_COORDINATE*/
        { 0x00017040,   16,     8 }, /*WAFER_ID*/
        { 0x00017040,   24,     8 }, /*DVS*/
        { 0x00017044,   0,      24 }, /*LOT_NUMBER*/
};

static const struct reg_sequence cs35l41_reva0_errata_patch[] = {
        { 0x00003854,                    0x05180240 },
        { CS35L41_VIMON_SPKMON_RESYNC,   0x00000000 },
        { 0x00004310,                    0x00000000 },
        { CS35L41_VPVBST_FS_SEL,         0x00000000 },
        { CS35L41_OTP_TRIM_30,           0x9091A1C8 },
        { 0x00003014,                    0x0200EE0E },
        { CS35L41_BSTCVRT_DCM_CTRL,      0x00000051 },
        { 0x00000054,                    0x00000004 },
        { CS35L41_IRQ1_DB3,              0x00000000 },
        { CS35L41_IRQ2_DB3,              0x00000000 },
        { CS35L41_DSP1_YM_ACCEL_PL0_PRI, 0x00000000 },
        { CS35L41_DSP1_XM_ACCEL_PL0_PRI, 0x00000000 },
        { CS35L41_PWR_CTRL2,             0x00000000 },
        { CS35L41_AMP_GAIN_CTRL,         0x00000000 },
        { CS35L41_ASP_TX3_SRC,           0x00000000 },
        { CS35L41_ASP_TX4_SRC,           0x00000000 },
};

static const struct reg_sequence cs35l41_revb0_errata_patch[] = {
        { CS35L41_VIMON_SPKMON_RESYNC,   0x00000000 },
        { 0x00004310,                    0x00000000 },
        { CS35L41_VPVBST_FS_SEL,         0x00000000 },
        { CS35L41_BSTCVRT_DCM_CTRL,      0x00000051 },
        { CS35L41_DSP1_YM_ACCEL_PL0_PRI, 0x00000000 },
        { CS35L41_DSP1_XM_ACCEL_PL0_PRI, 0x00000000 },
        { CS35L41_PWR_CTRL2,             0x00000000 },
        { CS35L41_AMP_GAIN_CTRL,         0x00000000 },
        { CS35L41_ASP_TX3_SRC,           0x00000000 },
        { CS35L41_ASP_TX4_SRC,           0x00000000 },
};

static const struct reg_sequence cs35l41_revb2_errata_patch[] = {
        { CS35L41_VIMON_SPKMON_RESYNC,   0x00000000 },
        { 0x00004310,                    0x00000000 },
        { CS35L41_VPVBST_FS_SEL,         0x00000000 },
        { CS35L41_BSTCVRT_DCM_CTRL,      0x00000051 },
        { CS35L41_DSP1_YM_ACCEL_PL0_PRI, 0x00000000 },
        { CS35L41_DSP1_XM_ACCEL_PL0_PRI, 0x00000000 },
        { CS35L41_PWR_CTRL2,             0x00000000 },
        { CS35L41_AMP_GAIN_CTRL,         0x00000000 },
        { CS35L41_ASP_TX3_SRC,           0x00000000 },
        { CS35L41_ASP_TX4_SRC,           0x00000000 },
};

static const struct reg_sequence cs35l41_fs_errata_patch[] = {
        { CS35L41_DSP1_RX1_RATE,        0x00000001 },
        { CS35L41_DSP1_RX2_RATE,        0x00000001 },
        { CS35L41_DSP1_RX3_RATE,        0x00000001 },
        { CS35L41_DSP1_RX4_RATE,        0x00000001 },
        { CS35L41_DSP1_RX5_RATE,        0x00000001 },
        { CS35L41_DSP1_RX6_RATE,        0x00000001 },
        { CS35L41_DSP1_RX7_RATE,        0x00000001 },
        { CS35L41_DSP1_RX8_RATE,        0x00000001 },
        { CS35L41_DSP1_TX1_RATE,        0x00000001 },
        { CS35L41_DSP1_TX2_RATE,        0x00000001 },
        { CS35L41_DSP1_TX3_RATE,        0x00000001 },
        { CS35L41_DSP1_TX4_RATE,        0x00000001 },
        { CS35L41_DSP1_TX5_RATE,        0x00000001 },
        { CS35L41_DSP1_TX6_RATE,        0x00000001 },
        { CS35L41_DSP1_TX7_RATE,        0x00000001 },
        { CS35L41_DSP1_TX8_RATE,        0x00000001 },
};

static const struct cs35l41_otp_map_element_t cs35l41_otp_map_map[] = {
        {
                .id = 0x01,
                .map = otp_map_1,
                .num_elements = ARRAY_SIZE(otp_map_1),
                .bit_offset = 16,
                .word_offset = 2,
        },
        {
                .id = 0x02,
                .map = otp_map_2,
                .num_elements = ARRAY_SIZE(otp_map_2),
                .bit_offset = 16,
                .word_offset = 2,
        },
        {
                .id = 0x03,
                .map = otp_map_2,
                .num_elements = ARRAY_SIZE(otp_map_2),
                .bit_offset = 16,
                .word_offset = 2,
        },
        {
                .id = 0x06,
                .map = otp_map_2,
                .num_elements = ARRAY_SIZE(otp_map_2),
                .bit_offset = 16,
                .word_offset = 2,
        },
        {
                .id = 0x08,
                .map = otp_map_1,
                .num_elements = ARRAY_SIZE(otp_map_1),
                .bit_offset = 16,
                .word_offset = 2,
        },
};

struct regmap_config cs35l41_regmap_i2c = {
        .reg_bits = 32,
        .val_bits = 32,
        .reg_stride = CS35L41_REGSTRIDE,
        .reg_format_endian = REGMAP_ENDIAN_BIG,
        .val_format_endian = REGMAP_ENDIAN_BIG,
        .max_register = CS35L41_LASTREG,
        .reg_defaults = cs35l41_reg,
        .num_reg_defaults = ARRAY_SIZE(cs35l41_reg),
        .volatile_reg = cs35l41_volatile_reg,
        .readable_reg = cs35l41_readable_reg,
        .precious_reg = cs35l41_precious_reg,
        .cache_type = REGCACHE_MAPLE,
};
EXPORT_SYMBOL_GPL(cs35l41_regmap_i2c);

struct regmap_config cs35l41_regmap_spi = {
        .reg_bits = 32,
        .val_bits = 32,
        .pad_bits = 16,
        .reg_stride = CS35L41_REGSTRIDE,
        .reg_format_endian = REGMAP_ENDIAN_BIG,
        .val_format_endian = REGMAP_ENDIAN_BIG,
        .max_register = CS35L41_LASTREG,
        .reg_defaults = cs35l41_reg,
        .num_reg_defaults = ARRAY_SIZE(cs35l41_reg),
        .volatile_reg = cs35l41_volatile_reg,
        .readable_reg = cs35l41_readable_reg,
        .precious_reg = cs35l41_precious_reg,
        .cache_type = REGCACHE_MAPLE,
};
EXPORT_SYMBOL_GPL(cs35l41_regmap_spi);

static const struct cs35l41_otp_map_element_t *cs35l41_find_otp_map(u32 otp_id)
{
        int i;

        for (i = 0; i < ARRAY_SIZE(cs35l41_otp_map_map); i++) {
                if (cs35l41_otp_map_map[i].id == otp_id)
                        return &cs35l41_otp_map_map[i];
        }

        return NULL;
}

int cs35l41_test_key_unlock(struct device *dev, struct regmap *regmap)
{
        static const struct reg_sequence unlock[] = {
                { CS35L41_TEST_KEY_CTL, 0x00000055 },
                { CS35L41_TEST_KEY_CTL, 0x000000AA },
        };
        int ret;

        ret = regmap_multi_reg_write(regmap, unlock, ARRAY_SIZE(unlock));
        if (ret)
                dev_err(dev, "Failed to unlock test key: %d\n", ret);

        return ret;
}
EXPORT_SYMBOL_GPL(cs35l41_test_key_unlock);

int cs35l41_test_key_lock(struct device *dev, struct regmap *regmap)
{
        static const struct reg_sequence unlock[] = {
                { CS35L41_TEST_KEY_CTL, 0x000000CC },
                { CS35L41_TEST_KEY_CTL, 0x00000033 },
        };
        int ret;

        ret = regmap_multi_reg_write(regmap, unlock, ARRAY_SIZE(unlock));
        if (ret)
                dev_err(dev, "Failed to lock test key: %d\n", ret);

        return ret;
}
EXPORT_SYMBOL_GPL(cs35l41_test_key_lock);

/* Must be called with the TEST_KEY unlocked */
int cs35l41_otp_unpack(struct device *dev, struct regmap *regmap)
{
        const struct cs35l41_otp_map_element_t *otp_map_match;
        const struct cs35l41_otp_packed_element_t *otp_map;
        int bit_offset, word_offset, ret, i;
        unsigned int bit_sum = 8;
        u32 otp_val, otp_id_reg;
        u32 *otp_mem;

        otp_mem = kmalloc_array(CS35L41_OTP_SIZE_WORDS, sizeof(*otp_mem), GFP_KERNEL);
        if (!otp_mem)
                return -ENOMEM;

        ret = regmap_read(regmap, CS35L41_OTPID, &otp_id_reg);
        if (ret) {
                dev_err(dev, "Read OTP ID failed: %d\n", ret);
                goto err_otp_unpack;
        }

        otp_map_match = cs35l41_find_otp_map(otp_id_reg);

        if (!otp_map_match) {
                dev_err(dev, "OTP Map matching ID %d not found\n", otp_id_reg);
                ret = -EINVAL;
                goto err_otp_unpack;
        }

        ret = regmap_bulk_read(regmap, CS35L41_OTP_MEM0, otp_mem, CS35L41_OTP_SIZE_WORDS);
        if (ret) {
                dev_err(dev, "Read OTP Mem failed: %d\n", ret);
                goto err_otp_unpack;
        }

        otp_map = otp_map_match->map;

        bit_offset = otp_map_match->bit_offset;
        word_offset = otp_map_match->word_offset;

        for (i = 0; i < otp_map_match->num_elements; i++) {
                dev_dbg(dev, "bitoffset= %d, word_offset=%d, bit_sum mod 32=%d, otp_map[i].size = %u\n",
                        bit_offset, word_offset, bit_sum % 32, otp_map[i].size);
                if (bit_offset + otp_map[i].size - 1 >= 32) {
                        otp_val = (otp_mem[word_offset] &
                                        GENMASK(31, bit_offset)) >> bit_offset;
                        otp_val |= (otp_mem[++word_offset] &
                                        GENMASK(bit_offset + otp_map[i].size - 33, 0)) <<
                                        (32 - bit_offset);
                        bit_offset += otp_map[i].size - 32;
                } else if (bit_offset + otp_map[i].size - 1 >= 0) {
                        otp_val = (otp_mem[word_offset] &
                                   GENMASK(bit_offset + otp_map[i].size - 1, bit_offset)
                                  ) >> bit_offset;
                        bit_offset += otp_map[i].size;
                } else /* both bit_offset and otp_map[i].size are 0 */
                        otp_val = 0;

                bit_sum += otp_map[i].size;

                if (bit_offset == 32) {
                        bit_offset = 0;
                        word_offset++;
                }

                if (otp_map[i].reg != 0) {
                        ret = regmap_update_bits(regmap, otp_map[i].reg,
                                                 GENMASK(otp_map[i].shift + otp_map[i].size - 1,
                                                         otp_map[i].shift),
                                                 otp_val << otp_map[i].shift);
                        if (ret < 0) {
                                dev_err(dev, "Write OTP val failed: %d\n", ret);
                                goto err_otp_unpack;
                        }
                }
        }

        ret = 0;

err_otp_unpack:
        kfree(otp_mem);

        return ret;
}
EXPORT_SYMBOL_GPL(cs35l41_otp_unpack);

/* Must be called with the TEST_KEY unlocked */
int cs35l41_register_errata_patch(struct device *dev, struct regmap *reg, unsigned int reg_revid)
{
        char *rev;
        int ret;

        switch (reg_revid) {
        case CS35L41_REVID_A0:
                ret = regmap_register_patch(reg, cs35l41_reva0_errata_patch,
                                            ARRAY_SIZE(cs35l41_reva0_errata_patch));
                rev = "A0";
                break;
        case CS35L41_REVID_B0:
                ret = regmap_register_patch(reg, cs35l41_revb0_errata_patch,
                                            ARRAY_SIZE(cs35l41_revb0_errata_patch));
                rev = "B0";
                break;
        case CS35L41_REVID_B2:
                ret = regmap_register_patch(reg, cs35l41_revb2_errata_patch,
                                            ARRAY_SIZE(cs35l41_revb2_errata_patch));
                rev = "B2";
                break;
        default:
                ret = -EINVAL;
                rev = "XX";
                break;
        }

        if (ret)
                dev_err(dev, "Failed to apply %s errata patch: %d\n", rev, ret);

        ret = regmap_write(reg, CS35L41_DSP1_CCM_CORE_CTRL, 0);
        if (ret < 0)
                dev_err(dev, "Write CCM_CORE_CTRL failed: %d\n", ret);

        return ret;
}
EXPORT_SYMBOL_GPL(cs35l41_register_errata_patch);

int cs35l41_set_channels(struct device *dev, struct regmap *reg,
                         unsigned int tx_num, const unsigned int *tx_slot,
                         unsigned int rx_num, const unsigned int *rx_slot)
{
        unsigned int val, mask;
        int i;

        if (tx_num > 4 || rx_num > 2)
                return -EINVAL;

        val = 0;
        mask = 0;
        for (i = 0; i < rx_num; i++) {
                dev_dbg(dev, "rx slot %d position = %d\n", i, rx_slot[i]);
                val |= rx_slot[i] << (i * 8);
                mask |= 0x3F << (i * 8);
        }
        regmap_update_bits(reg, CS35L41_SP_FRAME_RX_SLOT, mask, val);

        val = 0;
        mask = 0;
        for (i = 0; i < tx_num; i++) {
                dev_dbg(dev, "tx slot %d position = %d\n", i, tx_slot[i]);
                val |= tx_slot[i] << (i * 8);
                mask |= 0x3F << (i * 8);
        }
        regmap_update_bits(reg, CS35L41_SP_FRAME_TX_SLOT, mask, val);

        return 0;
}
EXPORT_SYMBOL_GPL(cs35l41_set_channels);

static const unsigned char cs35l41_bst_k1_table[4][5] = {
        { 0x24, 0x32, 0x32, 0x4F, 0x57 },
        { 0x24, 0x32, 0x32, 0x4F, 0x57 },
        { 0x40, 0x32, 0x32, 0x4F, 0x57 },
        { 0x40, 0x32, 0x32, 0x4F, 0x57 }
};

static const unsigned char cs35l41_bst_k2_table[4][5] = {
        { 0x24, 0x49, 0x66, 0xA3, 0xEA },
        { 0x24, 0x49, 0x66, 0xA3, 0xEA },
        { 0x48, 0x49, 0x66, 0xA3, 0xEA },
        { 0x48, 0x49, 0x66, 0xA3, 0xEA }
};

static const unsigned char cs35l41_bst_slope_table[4] = {
        0x75, 0x6B, 0x3B, 0x28
};

static int cs35l41_boost_config(struct device *dev, struct regmap *regmap, int boost_ind,
                                int boost_cap, int boost_ipk)
{
        unsigned char bst_lbst_val, bst_cbst_range, bst_ipk_scaled;
        int ret;

        switch (boost_ind) {
        case 1000:      /* 1.0 uH */
                bst_lbst_val = 0;
                break;
        case 1200:      /* 1.2 uH */
                bst_lbst_val = 1;
                break;
        case 1500:      /* 1.5 uH */
                bst_lbst_val = 2;
                break;
        case 2200:      /* 2.2 uH */
                bst_lbst_val = 3;
                break;
        default:
                dev_err(dev, "Invalid boost inductor value: %d nH\n", boost_ind);
                return -EINVAL;
        }

        switch (boost_cap) {
        case 0 ... 19:
                bst_cbst_range = 0;
                break;
        case 20 ... 50:
                bst_cbst_range = 1;
                break;
        case 51 ... 100:
                bst_cbst_range = 2;
                break;
        case 101 ... 200:
                bst_cbst_range = 3;
                break;
        default:
                if (boost_cap < 0) {
                        dev_err(dev, "Invalid boost capacitor value: %d nH\n", boost_cap);
                        return -EINVAL;
                }
                /* 201 uF and greater */
                bst_cbst_range = 4;
        }

        if (boost_ipk < 1600 || boost_ipk > 4500) {
                dev_err(dev, "Invalid boost inductor peak current: %d mA\n", boost_ipk);
                return -EINVAL;
        }

        ret = regmap_update_bits(regmap, CS35L41_BSTCVRT_COEFF,
                                 CS35L41_BST_K1_MASK | CS35L41_BST_K2_MASK,
                                 cs35l41_bst_k1_table[bst_lbst_val][bst_cbst_range]
                                        << CS35L41_BST_K1_SHIFT |
                                 cs35l41_bst_k2_table[bst_lbst_val][bst_cbst_range]
                                        << CS35L41_BST_K2_SHIFT);
        if (ret) {
                dev_err(dev, "Failed to write boost coefficients: %d\n", ret);
                return ret;
        }

        ret = regmap_update_bits(regmap, CS35L41_BSTCVRT_SLOPE_LBST,
                                 CS35L41_BST_SLOPE_MASK | CS35L41_BST_LBST_VAL_MASK,
                                 cs35l41_bst_slope_table[bst_lbst_val]
                                        << CS35L41_BST_SLOPE_SHIFT |
                                 bst_lbst_val << CS35L41_BST_LBST_VAL_SHIFT);
        if (ret) {
                dev_err(dev, "Failed to write boost slope/inductor value: %d\n", ret);
                return ret;
        }

        bst_ipk_scaled = ((boost_ipk - 1600) / 50) + 0x10;

        ret = regmap_update_bits(regmap, CS35L41_BSTCVRT_PEAK_CUR, CS35L41_BST_IPK_MASK,
                                 bst_ipk_scaled << CS35L41_BST_IPK_SHIFT);
        if (ret) {
                dev_err(dev, "Failed to write boost inductor peak current: %d\n", ret);
                return ret;
        }

        regmap_update_bits(regmap, CS35L41_PWR_CTRL2, CS35L41_BST_EN_MASK,
                           CS35L41_BST_EN_DEFAULT << CS35L41_BST_EN_SHIFT);

        return 0;
}

static const struct reg_sequence cs35l41_safe_to_reset[] = {
        { 0x00000040,                   0x00000055 },
        { 0x00000040,                   0x000000AA },
        { 0x0000393C,                   0x000000C0, 6000},
        { 0x0000393C,                   0x00000000 },
        { 0x00007414,                   0x00C82222 },
        { 0x0000742C,                   0x00000000 },
        { 0x00000040,                   0x000000CC },
        { 0x00000040,                   0x00000033 },
};

static const struct reg_sequence cs35l41_active_to_safe_start[] = {
        { 0x00000040,                   0x00000055 },
        { 0x00000040,                   0x000000AA },
        { 0x00007438,                   0x00585941 },
        { CS35L41_PWR_CTRL1,            0x00000000 },
        { 0x0000742C,                   0x00000009 },
};

static const struct reg_sequence cs35l41_active_to_safe_end[] = {
        { 0x00007438,                   0x00580941 },
        { 0x00000040,                   0x000000CC },
        { 0x00000040,                   0x00000033 },
};

static const struct reg_sequence cs35l41_safe_to_active_start[] = {
        { 0x00000040,                   0x00000055 },
        { 0x00000040,                   0x000000AA },
        { 0x0000742C,                   0x0000000F },
        { 0x0000742C,                   0x00000079 },
        { 0x00007438,                   0x00585941 },
        { CS35L41_PWR_CTRL1,            0x00000001 }, // GLOBAL_EN = 1
};

static const struct reg_sequence cs35l41_safe_to_active_en_spk[] = {
        { 0x0000742C,                   0x000000F9 },
        { 0x00007438,                   0x00580941 },
};

static const struct reg_sequence cs35l41_reset_to_safe[] = {
        { 0x00000040,                   0x00000055 },
        { 0x00000040,                   0x000000AA },
        { 0x00007438,                   0x00585941 },
        { 0x00007414,                   0x08C82222 },
        { 0x0000742C,                   0x00000009 },
        { 0x00000040,                   0x000000CC },
        { 0x00000040,                   0x00000033 },
};

static const struct reg_sequence cs35l41_actv_seq[] = {
        /* SYNC_BST_CTL_RX_EN = 1; SYNC_BST_CTL_TX_EN = 1 */
        {CS35L41_MDSYNC_EN,        0x00003000},
        /* BST_CTL_SEL = MDSYNC */
        {CS35L41_BSTCVRT_VCTRL2,    0x00000002},
};

static const struct reg_sequence cs35l41_pass_seq[] = {
        /* SYNC_BST_CTL_RX_EN = 0; SYNC_BST_CTL_TX_EN = 1 */
        {CS35L41_MDSYNC_EN,        0x00001000},
        /* BST_EN = 0 */
        {CS35L41_PWR_CTRL2,        0x00003300},
        /* BST_CTL_SEL = MDSYNC */
        {CS35L41_BSTCVRT_VCTRL2,    0x00000002},
};

int cs35l41_init_boost(struct device *dev, struct regmap *regmap,
                       struct cs35l41_hw_cfg *hw_cfg)
{
        int ret;

        switch (hw_cfg->bst_type) {
        case CS35L41_SHD_BOOST_ACTV:
                regmap_multi_reg_write(regmap, cs35l41_actv_seq, ARRAY_SIZE(cs35l41_actv_seq));
                fallthrough;
        case CS35L41_INT_BOOST:
                ret = cs35l41_boost_config(dev, regmap, hw_cfg->bst_ind,
                                           hw_cfg->bst_cap, hw_cfg->bst_ipk);
                if (ret)
                        dev_err(dev, "Error in Boost DT config: %d\n", ret);
                break;
        case CS35L41_EXT_BOOST:
        case CS35L41_EXT_BOOST_NO_VSPK_SWITCH:
                /* Only CLSA0100 doesn't use GPIO as VSPK switch, but even on that laptop we can
                 * toggle GPIO1 as is not connected to anything.
                 * There will be no other device without VSPK switch.
                 */
                regmap_write(regmap, CS35L41_GPIO1_CTRL1, 0x00000001);
                regmap_multi_reg_write(regmap, cs35l41_reset_to_safe,
                                       ARRAY_SIZE(cs35l41_reset_to_safe));
                ret = regmap_update_bits(regmap, CS35L41_PWR_CTRL2, CS35L41_BST_EN_MASK,
                                         CS35L41_BST_DIS_FET_OFF << CS35L41_BST_EN_SHIFT);
                break;
        case CS35L41_SHD_BOOST_PASS:
                ret = regmap_multi_reg_write(regmap, cs35l41_pass_seq,
                                             ARRAY_SIZE(cs35l41_pass_seq));
                break;
        default:
                dev_err(dev, "Boost type %d not supported\n", hw_cfg->bst_type);
                ret = -EINVAL;
                break;
        }

        return ret;
}
EXPORT_SYMBOL_GPL(cs35l41_init_boost);

bool cs35l41_safe_reset(struct regmap *regmap, enum cs35l41_boost_type b_type)
{
        switch (b_type) {
        /* There is only one laptop that doesn't have VSPK switch. */
        case CS35L41_EXT_BOOST_NO_VSPK_SWITCH:
                return false;
        case CS35L41_EXT_BOOST:
                regmap_write(regmap, CS35L41_GPIO1_CTRL1, 0x00000001);
                regmap_multi_reg_write(regmap, cs35l41_safe_to_reset,
                                       ARRAY_SIZE(cs35l41_safe_to_reset));
                return true;
        default:
                return true;
        }
}
EXPORT_SYMBOL_GPL(cs35l41_safe_reset);

/*
 * Enabling the CS35L41_SHD_BOOST_ACTV and CS35L41_SHD_BOOST_PASS shared boosts
 * does also require a call to cs35l41_mdsync_up(), but not before getting the
 * PLL Lock signal.
 *
 * PLL Lock seems to be triggered soon after snd_pcm_start() is executed and
 * SNDRV_PCM_TRIGGER_START command is processed, which happens (long) after the
 * SND_SOC_DAPM_PRE_PMU event handler is invoked as part of snd_pcm_prepare().
 *
 * This event handler is where cs35l41_global_enable() is normally called from,
 * but waiting for PLL Lock here will time out. Increasing the wait duration
 * will not help, as the only consequence of it would be to add an unnecessary
 * delay in the invocation of snd_pcm_start().
 *
 * Trying to move the wait in the SNDRV_PCM_TRIGGER_START callback is not a
 * solution either, as the trigger is executed in an IRQ-off atomic context.
 *
 * The current approach is to invoke cs35l41_mdsync_up() right after receiving
 * the PLL Lock interrupt, in the IRQ handler.
 */
int cs35l41_global_enable(struct device *dev, struct regmap *regmap, enum cs35l41_boost_type b_type,
                          int enable, struct cs_dsp *dsp)
{
        int ret;
        unsigned int gpio1_func, pad_control, pwr_ctrl1, pwr_ctrl3, int_status, pup_pdn_mask;
        unsigned int pwr_ctl1_val;
        struct reg_sequence cs35l41_mdsync_down_seq[] = {
                {CS35L41_PWR_CTRL3,             0},
                {CS35L41_GPIO_PAD_CONTROL,      0},
                {CS35L41_PWR_CTRL1,             0, 3000},
        };

        pup_pdn_mask = enable ? CS35L41_PUP_DONE_MASK : CS35L41_PDN_DONE_MASK;

        ret = regmap_read(regmap, CS35L41_PWR_CTRL1, &pwr_ctl1_val);
        if (ret)
                return ret;

        if ((pwr_ctl1_val & CS35L41_GLOBAL_EN_MASK) && enable) {
                dev_dbg(dev, "Cannot set Global Enable - already set.\n");
                return 0;
        } else if (!(pwr_ctl1_val & CS35L41_GLOBAL_EN_MASK) && !enable) {
                dev_dbg(dev, "Cannot unset Global Enable - not set.\n");
                return 0;
        }

        switch (b_type) {
        case CS35L41_SHD_BOOST_ACTV:
        case CS35L41_SHD_BOOST_PASS:
                regmap_read(regmap, CS35L41_PWR_CTRL3, &pwr_ctrl3);
                regmap_read(regmap, CS35L41_GPIO_PAD_CONTROL, &pad_control);

                pwr_ctrl3 &= ~CS35L41_SYNC_EN_MASK;
                pwr_ctrl1 = enable << CS35L41_GLOBAL_EN_SHIFT;

                gpio1_func = enable ? CS35L41_GPIO1_MDSYNC : CS35L41_GPIO1_HIZ;
                gpio1_func <<= CS35L41_GPIO1_CTRL_SHIFT;

                pad_control &= ~CS35L41_GPIO1_CTRL_MASK;
                pad_control |= gpio1_func & CS35L41_GPIO1_CTRL_MASK;

                cs35l41_mdsync_down_seq[0].def = pwr_ctrl3;
                cs35l41_mdsync_down_seq[1].def = pad_control;
                cs35l41_mdsync_down_seq[2].def = pwr_ctrl1;

                ret = regmap_multi_reg_write(regmap, cs35l41_mdsync_down_seq,
                                             ARRAY_SIZE(cs35l41_mdsync_down_seq));
                /* Activation to be completed later via cs35l41_mdsync_up() */
                if (ret || enable)
                        return ret;

                ret = regmap_read_poll_timeout(regmap, CS35L41_IRQ1_STATUS1,
                                        int_status, int_status & pup_pdn_mask,
                                        1000, 100000);
                if (ret)
                        dev_err(dev, "Enable(%d) failed: %d\n", enable, ret);

                /* Clear PUP/PDN status */
                regmap_write(regmap, CS35L41_IRQ1_STATUS1, pup_pdn_mask);
                break;
        case CS35L41_INT_BOOST:
                ret = regmap_update_bits(regmap, CS35L41_PWR_CTRL1, CS35L41_GLOBAL_EN_MASK,
                                         enable << CS35L41_GLOBAL_EN_SHIFT);
                if (ret) {
                        dev_err(dev, "CS35L41_PWR_CTRL1 set failed: %d\n", ret);
                        return ret;
                }

                ret = regmap_read_poll_timeout(regmap, CS35L41_IRQ1_STATUS1,
                                        int_status, int_status & pup_pdn_mask,
                                        1000, 100000);
                if (ret)
                        dev_err(dev, "Enable(%d) failed: %d\n", enable, ret);

                /* Clear PUP/PDN status */
                regmap_write(regmap, CS35L41_IRQ1_STATUS1, pup_pdn_mask);
                break;
        case CS35L41_EXT_BOOST:
        case CS35L41_EXT_BOOST_NO_VSPK_SWITCH:
                if (enable) {
                        /* Test Key is unlocked here */
                        ret = regmap_multi_reg_write(regmap, cs35l41_safe_to_active_start,
                                                     ARRAY_SIZE(cs35l41_safe_to_active_start));
                        if (ret)
                                return ret;

                        ret = regmap_read_poll_timeout(regmap, CS35L41_IRQ1_STATUS1, int_status,
                                       int_status & CS35L41_PUP_DONE_MASK, 1000, 100000);
                        if (ret) {
                                dev_err(dev, "Failed waiting for CS35L41_PUP_DONE_MASK: %d\n", ret);
                                /* Lock the test key, it was unlocked during the multi_reg_write */
                                cs35l41_test_key_lock(dev, regmap);
                                return ret;
                        }
                        regmap_write(regmap, CS35L41_IRQ1_STATUS1, CS35L41_PUP_DONE_MASK);

                        if (dsp->running && dsp->fw_id_version > CS35L41_FIRMWARE_OLD_VERSION)
                                ret = cs35l41_set_cspl_mbox_cmd(dev, regmap,
                                                                CSPL_MBOX_CMD_SPK_OUT_ENABLE);
                        else
                                ret = regmap_multi_reg_write(regmap, cs35l41_safe_to_active_en_spk,
                                                        ARRAY_SIZE(cs35l41_safe_to_active_en_spk));

                        /* Lock the test key, it was unlocked during the multi_reg_write */
                        cs35l41_test_key_lock(dev, regmap);
                } else {
                        /* Test Key is unlocked here */
                        ret = regmap_multi_reg_write(regmap, cs35l41_active_to_safe_start,
                                                     ARRAY_SIZE(cs35l41_active_to_safe_start));
                        if (ret) {
                                /* Lock the test key, it was unlocked during the multi_reg_write */
                                cs35l41_test_key_lock(dev, regmap);
                                return ret;
                        }

                        ret = regmap_read_poll_timeout(regmap, CS35L41_IRQ1_STATUS1, int_status,
                                       int_status & CS35L41_PDN_DONE_MASK, 1000, 100000);
                        if (ret) {
                                dev_err(dev, "Failed waiting for CS35L41_PDN_DONE_MASK: %d\n", ret);
                                /* Lock the test key, it was unlocked during the multi_reg_write */
                                cs35l41_test_key_lock(dev, regmap);
                                return ret;
                        }
                        regmap_write(regmap, CS35L41_IRQ1_STATUS1, CS35L41_PDN_DONE_MASK);

                        /* Test Key is locked here */
                        ret = regmap_multi_reg_write(regmap, cs35l41_active_to_safe_end,
                                                     ARRAY_SIZE(cs35l41_active_to_safe_end));
                }
                break;
        default:
                ret = -EINVAL;
                break;
        }

        return ret;
}
EXPORT_SYMBOL_GPL(cs35l41_global_enable);

/*
 * To be called after receiving the IRQ Lock interrupt, in order to complete
 * any shared boost activation initiated by cs35l41_global_enable().
 */
int cs35l41_mdsync_up(struct regmap *regmap)
{
        return regmap_update_bits(regmap, CS35L41_PWR_CTRL3,
                                  CS35L41_SYNC_EN_MASK, CS35L41_SYNC_EN_MASK);
}
EXPORT_SYMBOL_GPL(cs35l41_mdsync_up);

int cs35l41_gpio_config(struct regmap *regmap, struct cs35l41_hw_cfg *hw_cfg)
{
        struct cs35l41_gpio_cfg *gpio1 = &hw_cfg->gpio1;
        struct cs35l41_gpio_cfg *gpio2 = &hw_cfg->gpio2;
        int irq_pol = IRQF_TRIGGER_NONE;

        regmap_update_bits(regmap, CS35L41_GPIO1_CTRL1,
                           CS35L41_GPIO_POL_MASK | CS35L41_GPIO_DIR_MASK,
                           gpio1->pol_inv << CS35L41_GPIO_POL_SHIFT |
                           !gpio1->out_en << CS35L41_GPIO_DIR_SHIFT);

        regmap_update_bits(regmap, CS35L41_GPIO2_CTRL1,
                           CS35L41_GPIO_POL_MASK | CS35L41_GPIO_DIR_MASK,
                           gpio2->pol_inv << CS35L41_GPIO_POL_SHIFT |
                           !gpio2->out_en << CS35L41_GPIO_DIR_SHIFT);

        if (gpio1->valid)
                regmap_update_bits(regmap, CS35L41_GPIO_PAD_CONTROL, CS35L41_GPIO1_CTRL_MASK,
                                   gpio1->func << CS35L41_GPIO1_CTRL_SHIFT);

        if (gpio2->valid) {
                regmap_update_bits(regmap, CS35L41_GPIO_PAD_CONTROL, CS35L41_GPIO2_CTRL_MASK,
                                   gpio2->func << CS35L41_GPIO2_CTRL_SHIFT);

                switch (gpio2->func) {
                case CS35L41_GPIO2_INT_PUSH_PULL_LOW:
                case CS35L41_GPIO2_INT_OPEN_DRAIN:
                        irq_pol = IRQF_TRIGGER_LOW;
                        break;
                case CS35L41_GPIO2_INT_PUSH_PULL_HIGH:
                        irq_pol = IRQF_TRIGGER_HIGH;
                        break;
                default:
                        break;
                }
        }

        return irq_pol;
}
EXPORT_SYMBOL_GPL(cs35l41_gpio_config);

static const struct cs_dsp_region cs35l41_dsp1_regions[] = {
        { .type = WMFW_HALO_PM_PACKED,  .base = CS35L41_DSP1_PMEM_0 },
        { .type = WMFW_HALO_XM_PACKED,  .base = CS35L41_DSP1_XMEM_PACK_0 },
        { .type = WMFW_HALO_YM_PACKED,  .base = CS35L41_DSP1_YMEM_PACK_0 },
        {. type = WMFW_ADSP2_XM,        .base = CS35L41_DSP1_XMEM_UNPACK24_0},
        {. type = WMFW_ADSP2_YM,        .base = CS35L41_DSP1_YMEM_UNPACK24_0},
};

void cs35l41_configure_cs_dsp(struct device *dev, struct regmap *reg, struct cs_dsp *dsp)
{
        dsp->num = 1;
        dsp->type = WMFW_HALO;
        dsp->rev = 0;
        dsp->dev = dev;
        dsp->regmap = reg;
        dsp->base = CS35L41_DSP1_CTRL_BASE;
        dsp->base_sysinfo = CS35L41_DSP1_SYS_ID;
        dsp->mem = cs35l41_dsp1_regions;
        dsp->num_mems = ARRAY_SIZE(cs35l41_dsp1_regions);
        dsp->lock_regions = 0xFFFFFFFF;
}
EXPORT_SYMBOL_GPL(cs35l41_configure_cs_dsp);

static bool cs35l41_check_cspl_mbox_sts(enum cs35l41_cspl_mbox_cmd cmd,
                                        enum cs35l41_cspl_mbox_status sts)
{
        switch (cmd) {
        case CSPL_MBOX_CMD_NONE:
        case CSPL_MBOX_CMD_UNKNOWN_CMD:
                return true;
        case CSPL_MBOX_CMD_PAUSE:
        case CSPL_MBOX_CMD_OUT_OF_HIBERNATE:
                return (sts == CSPL_MBOX_STS_PAUSED);
        case CSPL_MBOX_CMD_RESUME:
                return (sts == CSPL_MBOX_STS_RUNNING);
        case CSPL_MBOX_CMD_REINIT:
                return (sts == CSPL_MBOX_STS_RUNNING);
        case CSPL_MBOX_CMD_STOP_PRE_REINIT:
                return (sts == CSPL_MBOX_STS_RDY_FOR_REINIT);
        case CSPL_MBOX_CMD_SPK_OUT_ENABLE:
                return (sts == CSPL_MBOX_STS_RUNNING);
        default:
                return false;
        }
}

int cs35l41_set_cspl_mbox_cmd(struct device *dev, struct regmap *regmap,
                              enum cs35l41_cspl_mbox_cmd cmd)
{
        unsigned int sts = 0, i;
        int ret;

        // Set mailbox cmd
        ret = regmap_write(regmap, CS35L41_DSP_VIRT1_MBOX_1, cmd);
        if (ret < 0) {
                if (cmd != CSPL_MBOX_CMD_OUT_OF_HIBERNATE)
                        dev_err(dev, "Failed to write MBOX: %d\n", ret);
                return ret;
        }

        // Read mailbox status and verify it is appropriate for the given cmd
        for (i = 0; i < 5; i++) {
                usleep_range(1000, 1100);

                ret = regmap_read(regmap, CS35L41_DSP_MBOX_2, &sts);
                if (ret < 0) {
                        dev_err(dev, "Failed to read MBOX STS: %d\n", ret);
                        continue;
                }

                if (sts == CSPL_MBOX_STS_ERROR || sts == CSPL_MBOX_STS_ERROR2) {
                        dev_err(dev, "CSPL Error Detected\n");
                        return -EINVAL;
                }

                if (!cs35l41_check_cspl_mbox_sts(cmd, sts))
                        dev_dbg(dev, "[%u] cmd %u returned invalid sts %u", i, cmd, sts);
                else
                        return 0;
        }

        if (cmd != CSPL_MBOX_CMD_OUT_OF_HIBERNATE)
                dev_err(dev, "Failed to set mailbox cmd %u (status %u)\n", cmd, sts);

        return -ENOMSG;
}
EXPORT_SYMBOL_GPL(cs35l41_set_cspl_mbox_cmd);

int cs35l41_write_fs_errata(struct device *dev, struct regmap *regmap)
{
        int ret;

        ret = regmap_multi_reg_write(regmap, cs35l41_fs_errata_patch,
                                     ARRAY_SIZE(cs35l41_fs_errata_patch));
        if (ret < 0)
                dev_err(dev, "Failed to write fs errata: %d\n", ret);

        return ret;
}
EXPORT_SYMBOL_GPL(cs35l41_write_fs_errata);

int cs35l41_enter_hibernate(struct device *dev, struct regmap *regmap,
                            enum cs35l41_boost_type b_type)
{
        if (!cs35l41_safe_reset(regmap, b_type)) {
                dev_dbg(dev, "System does not support Suspend\n");
                return -EINVAL;
        }

        dev_dbg(dev, "Enter hibernate\n");
        regmap_write(regmap, CS35L41_WAKESRC_CTL, 0x0088);
        regmap_write(regmap, CS35L41_WAKESRC_CTL, 0x0188);

        // Don't wait for ACK since bus activity would wake the device
        regmap_write(regmap, CS35L41_DSP_VIRT1_MBOX_1, CSPL_MBOX_CMD_HIBERNATE);

        return 0;
}
EXPORT_SYMBOL_GPL(cs35l41_enter_hibernate);

static void cs35l41_wait_for_pwrmgt_sts(struct device *dev, struct regmap *regmap)
{
        const int pwrmgt_retries = 10;
        unsigned int sts;
        int i, ret;

        for (i = 0; i < pwrmgt_retries; i++) {
                ret = regmap_read(regmap, CS35L41_PWRMGT_STS, &sts);
                if (ret)
                        dev_err(dev, "Failed to read PWRMGT_STS: %d\n", ret);
                else if (!(sts & CS35L41_WR_PEND_STS_MASK))
                        return;

                udelay(20);
        }

        dev_err(dev, "Timed out reading PWRMGT_STS\n");
}

int cs35l41_exit_hibernate(struct device *dev, struct regmap *regmap)
{
        const int wake_retries = 20;
        const int sleep_retries = 5;
        int ret, i, j;

        for (i = 0; i < sleep_retries; i++) {
                dev_dbg(dev, "Exit hibernate\n");

                for (j = 0; j < wake_retries; j++) {
                        ret = cs35l41_set_cspl_mbox_cmd(dev, regmap,
                                                        CSPL_MBOX_CMD_OUT_OF_HIBERNATE);
                        if (!ret)
                                break;

                        usleep_range(100, 200);
                }

                if (j < wake_retries) {
                        dev_dbg(dev, "Wake success at cycle: %d\n", j);
                        return 0;
                }

                dev_err(dev, "Wake failed, re-enter hibernate: %d\n", ret);

                cs35l41_wait_for_pwrmgt_sts(dev, regmap);
                regmap_write(regmap, CS35L41_WAKESRC_CTL, 0x0088);

                cs35l41_wait_for_pwrmgt_sts(dev, regmap);
                regmap_write(regmap, CS35L41_WAKESRC_CTL, 0x0188);

                cs35l41_wait_for_pwrmgt_sts(dev, regmap);
                regmap_write(regmap, CS35L41_PWRMGT_CTL, 0x3);
        }

        dev_err(dev, "Timed out waking device\n");

        return -ETIMEDOUT;
}
EXPORT_SYMBOL_GPL(cs35l41_exit_hibernate);

MODULE_DESCRIPTION("CS35L41 library");
MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");
MODULE_AUTHOR("Lucas Tanure, Cirrus Logic Inc, <tanureal@opensource.cirrus.com>");
MODULE_LICENSE("GPL");