Unverified Commit c0a3873b authored by Seven Lee's avatar Seven Lee Committed by Mark Brown
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ASoC: nau8325: new driver 



The driver is for amplifiers NAU8325 of Nuvoton Technology Corporation.
The NAU8325 is a stereo high efficiency filter-free Class-D audio
amplifier, which is capable of driving a 4ohm load with up to 3W output
power.

Signed-off-by: default avatarSeven Lee <wtli@nuvoton.com>
Link: https://msgid.link/r/20240327075755.3410381-3-wtli@nuvoton.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 2e4c003b

sound/soc/codecs/nau8325.c

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+893 −0

File added.

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sound/soc/codecs/nau8325.h

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/* SPDX-License-Identifier: GPL-2.0 */

/*

 * nau8325.h -- Nuvoton NAU8325 audio codec driver

 *

 * Copyright 2023 Nuvoton Technology Crop.

 * Author: Seven Lee <WTLI@nuvoton.com>

 *	   David Lin <CTLIN0@nuvoton.com>

 */



#ifndef __NAU8325_H__

#define __NAU8325_H__



#define NAU8325_R00_HARDWARE_RST		0x00

#define NAU8325_R01_SOFTWARE_RST		0x01

#define NAU8325_R02_DEVICE_ID			0x02

#define NAU8325_R03_CLK_CTRL			0x03

#define NAU8325_R04_ENA_CTRL			0x04

#define NAU8325_R05_INTERRUPT_CTRL		0x05

#define NAU8325_R06_INT_CLR_STATUS		0x06

#define NAU8325_R09_IRQOUT			0x09

#define NAU8325_R0A_IO_CTRL			0x0a

#define NAU8325_R0B_PDM_CTRL			0x0b

#define NAU8325_R0C_TDM_CTRL			0x0c

#define NAU8325_R0D_I2S_PCM_CTRL1		0x0d

#define NAU8325_R0E_I2S_PCM_CTRL2		0x0e

#define NAU8325_R0F_L_TIME_SLOT			0x0f

#define NAU8325_R10_R_TIME_SLOT			0x10

#define NAU8325_R11_HPF_CTRL			0x11

#define NAU8325_R12_MUTE_CTRL			0x12

#define NAU8325_R13_DAC_VOLUME			0x13

#define NAU8325_R1D_DEBUG_READ1			0x1d

#define NAU8325_R1F_DEBUG_READ2			0x1f

#define NAU8325_R22_DEBUG_READ3			0x22

#define NAU8325_R29_DAC_CTRL1			0x29

#define NAU8325_R2A_DAC_CTRL2			0x2a

#define NAU8325_R2C_ALC_CTRL1			0x2c

#define NAU8325_R2D_ALC_CTRL2			0x2d

#define NAU8325_R2E_ALC_CTRL3			0x2e

#define NAU8325_R2F_ALC_CTRL4			0x2f

#define NAU8325_R40_CLK_DET_CTRL		0x40

#define NAU8325_R49_TEST_STATUS			0x49

#define NAU8325_R4A_ANALOG_READ			0x4a

#define NAU8325_R50_MIXER_CTRL			0x50

#define NAU8325_R55_MISC_CTRL			0x55

#define NAU8325_R60_BIAS_ADJ			0x60

#define NAU8325_R61_ANALOG_CONTROL_1		0x61

#define NAU8325_R62_ANALOG_CONTROL_2		0x62

#define NAU8325_R63_ANALOG_CONTROL_3		0x63

#define NAU8325_R64_ANALOG_CONTROL_4		0x64

#define NAU8325_R65_ANALOG_CONTROL_5		0x65

#define NAU8325_R66_ANALOG_CONTROL_6		0x66

#define NAU8325_R69_CLIP_CTRL			0x69

#define NAU8325_R73_RDAC			0x73

#define NAU8325_REG_MAX				NAU8325_R73_RDAC



/* 16-bit control register address, and 16-bits control register data */

#define NAU8325_REG_ADDR_LEN		16

#define NAU8325_REG_DATA_LEN		16



/* CLK_CTRL (0x03) */

#define NAU8325_CLK_DAC_SRC_SFT		12

#define NAU8325_CLK_DAC_SRC_MASK	(0x3 << NAU8325_CLK_DAC_SRC_SFT)

#define NAU8325_CLK_MUL_SRC_SFT		6

#define NAU8325_CLK_MUL_SRC_MASK	(0x3 << NAU8325_CLK_MUL_SRC_SFT)

#define NAU8325_MCLK_SEL_SFT		3

#define NAU8325_MCLK_SEL_MASK		(0x7 << NAU8325_MCLK_SEL_SFT)

#define NAU8325_MCLK_SRC_MASK		0x7



/* ENA_CTRL (0x04) */

#define NAU8325_DAC_LEFT_CH_EN_SFT	3

#define NAU8325_DAC_LEFT_CH_EN		(0x1 << NAU8325_DAC_LEFT_CH_EN_SFT)

#define NAU8325_DAC_RIGHT_CH_EN_SFT	2

#define NAU8325_DAC_RIGHT_CH_EN		(0x1 << NAU8325_DAC_RIGHT_CH_EN_SFT)



/* INTERRUPT_CTRL (0x05) */

#define NAU8325_ARP_DWN_INT_SFT		12

#define NAU8325_ARP_DWN_INT_MASK	(0x1 << NAU8325_ARP_DWN_INT_SFT)

#define NAU8325_CLIP_INT_SFT		11

#define NAU8325_CLIP_INT_MASK		(0x1 << NAU8325_CLIP_INT_SFT)

#define NAU8325_LVD_INT_SFT		10

#define NAU8325_LVD_INT_MASK		(0x1 << NAU8325_LVD_INT_SFT)

#define NAU8325_PWR_INT_DIS_SFT		8

#define NAU8325_PWR_INT_DIS		(0x1 << NAU8325_PWR_INT_DIS_SFT)

#define NAU8325_OCP_OTP_SHTDWN_INT_SFT	4

#define NAU8325_OCP_OTP_SHTDWN_INT_MASK (0x1 << NAU8325_OCP_OTP_SHTDWN_INT_SFT)

#define NAU8325_CLIP_INT_DIS_SFT	3

#define NAU8325_CLIP_INT_DIS		(0x1 << NAU8325_CLIP_INT_DIS_SFT)

#define NAU8325_LVD_INT_DIS_SFT		2

#define NAU8325_LVD_INT_DIS		(0x1 << NAU8325_LVD_INT_DIS_SFT)

#define NAU8325_PWR_INT_MASK		0x1



/* INT_CLR_STATUS (0x06) */

#define NAU8325_INT_STATUS_MASK		0x7f



/* IRQOUT (0x9) */

#define NAU8325_IRQOUT_SEL_SEF		12

#define NAU8325_IRQOUT_SEL_MASK		(0xf << NAU8325_IRQOUT_SEL_SEF)

#define NAU8325_DEM_DITH_SFT		7

#define NAU8325_DEM_DITH_EN		(0x1 << NAU8325_DEM_DITH_SFT)

#define NAU8325_GAINZI3_SFT		5

#define NAU8325_GAINZI3_MASK		(0x1 << NAU8325_GAINZI3_SFT)

#define NAU8325_GAINZI2_MASK		0x1f



/* IO_CTRL (0x0a) */

#define NAU8325_IRQ_PL_SFT		15

#define NAU8325_IRQ_PL_ACT_HIGH		(0x1 << NAU8325_IRQ_PL_SFT)

#define NAU8325_IRQ_PS_SFT		14

#define NAU8325_IRQ_PS_UP		(0x1 << NAU8325_IRQ_PS_SFT)

#define NAU8325_IRQ_PE_SFT		13

#define NAU8325_IRQ_PE_EN		(0x1 << NAU8325_IRQ_PE_SFT)

#define NAU8325_IRQ_DS_SFT		12

#define NAU8325_IRQ_DS_HIGH		(0x1 << NAU8325_IRQ_DS_SFT)

#define NAU8325_IRQ_OUTPUT_SFT		11

#define NAU8325_IRQ_OUTPUT_EN		(0x1 << NAU8325_IRQ_OUTPUT_SFT)

#define NAU8325_IRQ_PIN_DEBUG_SFT	10

#define NAU8325_IRQ_PIN_DEBUG_EN	(0x1 << NAU8325_IRQ_PIN_DEBUG_SFT)



/* PDM_CTRL (0x0b) */

#define NAU8325_PDM_LCH_EDGE_SFT	1

#define NAU8325_PDM_LCH_EDGE__MASK	(0x1 << NAU8325_PDM_LCH_EDGE_SFT)

#define NAU8325_PDM_MODE_EN		0x1



/* TDM_CTRL (0x0c) */

#define NAU8325_TDM_SFT			15

#define NAU8325_TDM_EN			(0x1 << NAU8325_TDM_SFT)

#define NAU8325_PCM_OFFSET_CTRL_SFT	14

#define NAU8325_PCM_OFFSET_CTRL_EN	(0x1 << NAU8325_PCM_OFFSET_CTRL_SFT)

#define NAU8325_DAC_LEFT_SFT		6

#define NAU8325_NAU8325_DAC_LEFT_MASK	(0x7 << NAU8325_DAC_LEFT_SFT)

#define NAU8325_DAC_RIGHT_SFT		3

#define NAU8325_DAC_RIGHT_MASK		(0x7 << NAU8325_DAC_RIGHT_SFT)



/* I2S_PCM_CTRL1 (0x0d) */

#define NAU8325_DACCM_CTL_SFT		14

#define NAU8325_DACCM_CTL_MASK		(0x3 << NAU8325_DACCM_CTL_SFT)

#define NAU8325_CMB8_0_SFT		10

#define NAU8325_CMB8_0_MASK		(0x1 << NAU8325_CMB8_0_SFT)

#define NAU8325_UA_OFFSET_SFT		9

#define NAU8325_UA_OFFSET_MASK		(0x1 << NAU8325_UA_OFFSET_SFT)

#define NAU8325_I2S_BP_SFT		7

#define NAU8325_I2S_BP_MASK		(0x1 << NAU8325_I2S_BP_SFT)

#define NAU8325_I2S_BP_INV		(0x1 << NAU8325_I2S_BP_SFT)

#define NAU8325_I2S_PCMB_SFT		6

#define NAU8325_I2S_PCMB_EN		(0x1 << NAU8325_I2S_PCMB_SFT)

#define NAU8325_I2S_DACPSHS0_SFT	5

#define NAU8325_I2S_DACPSHS0_MASK	(0x1 << NAU8325_I2S_DACPSHS0_SFT)

#define NAU8325_I2S_DL_SFT		2

#define NAU8325_I2S_DL_MASK		(0x3 << NAU8325_I2S_DL_SFT)

#define NAU8325_I2S_DL_32		(0x3 << NAU8325_I2S_DL_SFT)

#define NAU8325_I2S_DL_24		(0x2 << NAU8325_I2S_DL_SFT)

#define NAU8325_I2S_DL_20		(0x1 << NAU8325_I2S_DL_SFT)

#define NAU8325_I2S_DL_16		(0x0 << NAU8325_I2S_DL_SFT)

#define NAU8325_I2S_DF_MASK		0x3

#define NAU8325_I2S_DF_RIGTH		0x0

#define NAU8325_I2S_DF_LEFT		0x1

#define NAU8325_I2S_DF_I2S		0x2

#define NAU8325_I2S_DF_PCM_AB		0x3



/* I2S_PCM_CTRL2 (0x0e) */

#define NAU8325_PCM_TS_SFT		10

#define NAU8325_PCM_TS_EN		(0x1 << NAU8325_PCM_TS_SFT)

#define NAU8325_PCM8BIT0_SFT		8

#define NAU8325_PCM8BIT0_MASK		(0x1 << NAU8325_PCM8BIT0_SFT)



/* L_TIME_SLOT (0x0f)*/

#define NAU8325_SHORT_FS_DET_SFT	13

#define NAU8325_SHORT_FS_DET_DIS	(0x1 << NAU8325_SHORT_FS_DET_SFT)

#define NAU8325_TSLOT_L0_MASK		0x3ff



/* R_TIME_SLOT (0x10)*/

#define NAU8325_TSLOT_R0_MASK		0x3ff



/* HPF_CTRL (0x11)*/

#define NAU8325_DAC_HPF_SFT		15

#define NAU8325_DAC_HPF_EN		(0x1 << NAU8325_DAC_HPF_SFT)

#define NAU8325_DAC_HPF_APP_SFT		14

#define NAU8325_DAC_HPF_APP_MASK	(0x1 << NAU8325_DAC_HPF_APP_SFT)

#define NAU8325_DAC_HPF_FCUT_SFT	11

#define NAU8325_DAC_HPF_FCUT_MASK	(0x7 << NAU8325_DAC_HPF_FCUT_SFT)



/* MUTE_CTRL (0x12)*/

#define NAU8325_SOFT_MUTE_SFT		15

#define NAU8325_SOFT_MUTE		(0x1 << NAU8325_SOFT_MUTE_SFT)

#define NAU8325_DAC_ZC_SFT		8

#define NAU8325_DAC_ZC_EN		(0x1 << NAU8325_DAC_ZC_SFT)

#define NAU8325_UNMUTE_CTL_SFT		6

#define NAU8325_UNMUTE_CTL_MASK		(0x3 << NAU8325_UNMUTE_CTL_SFT)

#define NAU8325_ANA_MUTE_SFT		4

#define NAU8325_ANA_MUTE_MASK		(0x3 << NAU8325_ANA_MUTE_SFT)

#define NAU8325_AUTO_MUTE_SFT		3

#define NAU8325_AUTO_MUTE_DIS		(0x1 << NAU8325_AUTO_MUTE_SFT)



/* DAC_VOLUME (0x13) */

#define NAU8325_DAC_VOLUME_L_SFT	8

#define NAU8325_DAC_VOLUME_L_EN		(0xff << NAU8325_DAC_VOLUME_L_SFT)

#define NAU8325_DAC_VOLUME_R_SFT	0

#define NAU8325_DAC_VOLUME_R_EN		(0xff << NAU8325_DAC_VOLUME_R_SFT)

#define NAU8325_DAC_VOL_MAX		0xff



/* DEBUG_READ1 (0x1d)*/

#define NAU8325_OSR100_MASK		(0x1 << 6)

#define NAU8325_MIPS500_MASK		(0x1 << 5)

#define NAU8325_SHUTDWNDRVR_R_MASK	(0x1 << 4)

#define NAU8325_SHUTDWNDRVR_L_MASK	(0x1 << 3)

#define NAU8325_MUTEB_MASK		(0x1 << 2)

#define NAU8325_PDOSCB_MASK		(0x1 << 1)

#define NAU8325_POWERDOWN1B_D_MASK	0x1



/* DEBUG_READ2 (0x1f)*/

#define NAU8325_R_CHANNEL_Vol_SFT	8

#define NAU8325_R_CHANNEL_Vol_MASK	(0xff << NAU8325_R_CHANNEL_Vol_SFT)

#define NAU8325_L_CHANNEL_Vol_MASK	0xff



/* DEBUG_READ3(0x22)*/

#define NAU8325_PGAL_GAIN_MASK		(0x3f << 7)

#define NAU8325_CLIP_MASK		(0x1 << 6)

#define NAU8325_SCAN_MODE_MASK		(0x1 << 5)

#define NAU8325_SDB_MASK		(0x1 << 4)

#define NAU8325_TALARM_MASK		(0x1 << 3)

#define NAU8325_SHORTR_MASK		(0x1 << 2)

#define NAU8325_SHORTL_MASK		(0x1 << 1)

#define NAU8325_TMDET_MASK		0x1



/* DAC_CTRL1 (0x29) */

#define NAU8325_DAC_OVERSAMPLE_SFT	0

#define NAU8325_DAC_OVERSAMPLE_MASK	0x7

#define NAU8325_DAC_OVERSAMPLE_256	1

#define NAU8325_DAC_OVERSAMPLE_128	2

#define NAU8325_DAC_OVERSAMPLE_64	0

#define NAU8325_DAC_OVERSAMPLE_32	4



/* ALC_CTRL1 (0x2c) */

#define NAU8325_ALC_MAXGAIN_SFT		5

#define NAU8325_ALC_MAXGAIN_MAX		0x7

#define NAU8325_ALC_MAXGAIN_MASK	(0x7 << NAU8325_ALC_MAXGAIN_SFT)

#define NAU8325_ALC_MINGAIN_MAX		4

#define NAU8325_ALC_MINGAIN_SFT		1

#define NAU8325_ALC_MINGAIN_MASK	(0x7 << NAU8325_ALC_MINGAIN_SFT)



/* ALC_CTRL2 (0x2d) */

#define NAU8325_ALC_DCY_SFT		12

#define NAU8325_ALC_DCY_MAX		0xb

#define NAU8325_ALC_DCY_MASK		(0xf << NAU8325_ALC_DCY_SFT)

#define NAU8325_ALC_ATK_SFT		8

#define NAU8325_ALC_ATK_MAX		0xb

#define NAU8325_ALC_ATK_MASK		(0xf << NAU8325_ALC_ATK_SFT)

#define NAU8325_ALC_HLD_SFT		4

#define NAU8325_ALC_HLD_MAX		0xa

#define NAU8325_ALC_HLD_MASK		(0xf << NAU8325_ALC_HLD_SFT)

#define NAU8325_ALC_LVL_SFT		0

#define NAU8325_ALC_LVL_MAX		0xf

#define NAU8325_ALC_LVL_MASK		0xf



/* ALC_CTRL3 (0x2e) */

#define NAU8325_ALC_EN_SFT		15

#define NAU8325_ALC_EN			(0x1 << NAU8325_ALC_EN_SFT)



/* TEMP_COMP_CTRL (0x30) */

#define NAU8325_TEMP_COMP_ACT2_MASK	0xff



/* LPF_CTRL (0x33) */

#define NAU8325_LPF_IN1_EN_SFT		15

#define NAU8325_LPF_IN1_EN		(0x1 << NAU8325_LPF_IN1_EN_SFT)

#define NAU8325_LPF_IN1_TC_SFT		11

#define NAU8325_LPF_IN1_TC_MASK		(0xf << NAU8325_LPF_IN1_TC_SFT)

#define NAU8325_LPF_IN2_EN_SFT		10

#define NAU8325_LPF_IN2_EN		(0x1 << NAU8325_LPF_IN2_EN_SFT)

#define NAU8325_LPF_IN2_TC_SFT		6

#define NAU8325_LPF_IN2_TC_MASK		(0xf << NAU8325_LPF_IN2_TC_SFT)



/* CLK_DET_CTRL (0x40) */

#define NAU8325_APWRUP_SFT		15

#define NAU8325_APWRUP_EN		(0x1 << NAU8325_APWRUP_SFT)

#define NAU8325_CLKPWRUP_SFT		14

#define NAU8325_CLKPWRUP_DIS		(0x1 << NAU8325_CLKPWRUP_SFT)

#define NAU8325_PWRUP_DFT_SFT		13

#define NAU8325_PWRUP_DFT		(0x1 << NAU8325_PWRUP_DFT_SFT)

#define NAU8325_REG_SRATE_SFT		10

#define NAU8325_REG_SRATE_MASK		(0x7 << NAU8325_REG_SRATE_SFT)

#define NAU8325_REG_ALT_SRATE_SFT	9

#define NAU8325_REG_ALT_SRATE_EN	(0x1 << NAU8325_REG_ALT_SRATE_SFT)

#define NAU8325_REG_DIV_MAX		0x1



/* BIAS_ADJ (0x60) */

#define NAU8325_BIAS_VMID_SEL_SFT	4

#define NAU8325_BIAS_VMID_SEL_MASK	(0x3 << NAU8325_BIAS_VMID_SEL_SFT)



/* ANALOG_CONTROL_1 (0x61) */

#define NAU8325_VMDFSTENB_SFT		14

#define NAU8325_VMDFSTENB_MASK		(0x3 << NAU8325_VMDFSTENB_SFT)

#define NAU8325_CLASSDEN_SFT		12

#define NAU8325_CLASSDEN_MASK		(0x3 << NAU8325_CLASSDEN_SFT)

#define NAU8325_DACCLKEN_R_SFT		10

#define NAU8325_DACCLKEN_R_MASK		(0x3 << NAU8325_DACCLKEN_R_SFT)

#define NAU8325_DACEN_R_SFT		8

#define NAU8325_DACEN_R_MASK		(0x3 << NAU8325_DACEN_R_SFT)

#define NAU8325_DACCLKEN_SFT		6

#define NAU8325_DACCLKEN_MASK		(0x3 << NAU8325_DACCLKEN_SFT)

#define NAU8325_DACEN_SFT		4

#define NAU8325_DACEN_MASK		(0x3 << NAU8325_DACEN_SFT)

#define NAU8325_BIASEN_SFT		2

#define NAU8325_BIASEN_MASK		(0x3 << NAU8325_BIASEN_SFT)

#define NAU8325_VMIDEN_MASK		0x3



/* ANALOG_CONTROL_2 (0x62) */

#define NAU8325_PWMMOD_SFT		14

#define NAU8325_PWMMOD_MASK		(0x1 << NAU8325_PWMMOD_SFT)

#define NAU8325_DACTEST_SFT		6

#define NAU8325_DACTEST_MASK		(0x3 << NAU8325_DACTEST_SFT)

#define NAU8325_DACREFCAP_SFT		4

#define NAU8325_DACREFCAP_MASK		(0x3 << NAU8325_DACREFCAP_SFT)



/* ANALOG_CONTROL_3 (0x63) */

#define NAU8325_POWER_DOWN_L_SFT	12

#define NAU8325_POWER_DOWN_L_MASK	(0x3 << NAU8325_POWER_DOWN_L_SFT)

#define NAU8325_POWER_DOWN_R_SFT	11

#define NAU8325_POWER_DOWN_R_MASK	(0x3 << NAU8325_DACREFCAP_SFT)

#define NAU8325_CLASSD_FINE_SFT		5

#define NAU8325_CLASSD_FINE_MASK	(0x3 << NAU8325_CLASSD_FINE_SFT)

#define NAU8325_CLASSD_COARSE_GAIN_MASK	0xf



/* ANALOG_CONTROL_4 (0x64) */

#define NAU8325_CLASSD_OCPN_SFT		12

#define NAU8325_CLASSD_OCPN_MASK	(0xf << NAU8325_CLASSD_OCPN_SFT)

#define NAU8325_CLASSD_OCPP_SFT		8

#define NAU8325_CLASSD_OCPP_MASK	(0xf << NAU8325_CLASSD_OCPP_SFT)

#define NAU8325_CLASSD_SLEWN_MASK	0xff



/* ANALOG_CONTROL_5 (0x65) */

#define NAU8325_MCLK_RANGE_SFT		2

#define NAU8325_MCLK_RANGE_EN		(0x1 << NAU8325_MCLK_RANGE_SFT)

#define NAU8325_MCLK8XEN_SFT		1

#define NAU8325_MCLK8XEN_EN		(0x1 << NAU8325_MCLK8XEN_SFT)

#define NAU8325_MCLK4XEN_EN		0x1



/* ANALOG_CONTROL_6 (0x66) */

#define NAU8325_VBATLOW_SFT		4

#define NAU8325_VBATLOW_MASK		(0x1 << NAU8325_VBATLOW_SFT)

#define NAU8325_VDDSPK_LIM_SFT		3

#define NAU8325_VDDSPK_LIM_EN		(0x1 << NAU8325_VDDSPK_LIM_SFT)

#define NAU8325_VDDSPK_LIM_MASK		0x7



/* CLIP_CTRL (0x69)*/

#define NAU8325_ANTI_CLIP_SFT		4

#define NAU8325_ANTI_CLIP_EN		(0x1 << NAU8325_ANTI_CLIP_SFT)



/* RDAC (0x73) */

#define NAU8325_CLK_DAC_DELAY_SFT	4

#define NAU8325_CLK_DAC_DELAY_EN	(0x7 << NAU8325_CLK_DAC_DELAY_SFT)

#define NAU8325_DACVREFSEL_SFT		2

#define NAU8325_DACVREFSEL_MASK		(0x3 << NAU8325_DACVREFSEL_SFT)



#define NAU8325_CODEC_DAI "nau8325-hifi"



struct nau8325 {

	struct device *dev;

	struct regmap *regmap;

	int mclk;

	int fs;

	int vref_impedance_ohms;

	int dac_vref_microvolt;

	int clock_detection;

	int clock_det_data;

	int alc_enable;

};



struct nau8325_src_attr {

	int param;

	unsigned int val;

};



enum {

	NAU8325_MCLK_FS_RATIO_256,

	NAU8325_MCLK_FS_RATIO_400,

	NAU8325_MCLK_FS_RATIO_500,

	NAU8325_MCLK_FS_RATIO_NUM,

};



struct nau8325_srate_attr {

	int fs;

	int range;

	bool max;

	unsigned int mclk_src[NAU8325_MCLK_FS_RATIO_NUM];

};



struct nau8325_osr_attr {

	unsigned int osr;

	unsigned int clk_src;

};



#endif /* __NAU8325_H__ */