mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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ASoC: Add max98090 codec driver
This patch adds the max98090 codec prototype driver. It supports Headphone only at this point. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Kuninori Morimoto
Mark Brown
parent
f4a75d2eb7
commit
83f7cbc43b
@ -44,6 +44,7 @@ config SND_SOC_ALL_CODECS
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select SND_SOC_LM4857 if I2C
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select SND_SOC_LM49453 if I2C
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select SND_SOC_MAX98088 if I2C
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select SND_SOC_MAX98090 if I2C
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select SND_SOC_MAX98095 if I2C
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select SND_SOC_MAX9850 if I2C
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select SND_SOC_MAX9768 if I2C
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@ -258,6 +259,9 @@ config SND_SOC_LM49453
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config SND_SOC_MAX98088
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tristate
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config SND_SOC_MAX98090
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tristate
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config SND_SOC_MAX98095
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tristate
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@ -34,6 +34,7 @@ snd-soc-lm4857-objs := lm4857.o
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snd-soc-lm49453-objs := lm49453.o
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snd-soc-max9768-objs := max9768.o
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snd-soc-max98088-objs := max98088.o
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snd-soc-max98090-objs := max98090.o
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snd-soc-max98095-objs := max98095.o
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snd-soc-max9850-objs := max9850.o
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snd-soc-mc13783-objs := mc13783.o
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@ -155,6 +156,7 @@ obj-$(CONFIG_SND_SOC_LM4857) += snd-soc-lm4857.o
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obj-$(CONFIG_SND_SOC_LM49453) += snd-soc-lm49453.o
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obj-$(CONFIG_SND_SOC_MAX9768) += snd-soc-max9768.o
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obj-$(CONFIG_SND_SOC_MAX98088) += snd-soc-max98088.o
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obj-$(CONFIG_SND_SOC_MAX98090) += snd-soc-max98090.o
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obj-$(CONFIG_SND_SOC_MAX98095) += snd-soc-max98095.o
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obj-$(CONFIG_SND_SOC_MAX9850) += snd-soc-max9850.o
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obj-$(CONFIG_SND_SOC_MC13783) += snd-soc-mc13783.o
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577
sound/soc/codecs/max98090.c
Normal file
577
sound/soc/codecs/max98090.c
Normal file
@ -0,0 +1,577 @@
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/*
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* max98090.c -- MAX98090 ALSA SoC Audio driver
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* based on Rev0p8 datasheet
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*
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* Copyright (C) 2012 Renesas Solutions Corp.
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*
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* Based on
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*
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* max98095.c
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* Copyright 2011 Maxim Integrated Products
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*
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* https://github.com/hardkernel/linux/commit/\
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* 3417d7166b17113b3b33b0a337c74d1c7cc313df#sound/soc/codecs/max98090.c
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* Copyright 2011 Maxim Integrated Products
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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/*
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*
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* MAX98090 Registers Definition
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*
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*/
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/* RESET / STATUS / INTERRUPT REGISTERS */
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#define MAX98090_0x00_SW_RESET 0x00
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#define MAX98090_0x01_INT_STS 0x01
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#define MAX98090_0x02_JACK_STS 0x02
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#define MAX98090_0x03_INT_MASK 0x03
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/* QUICK SETUP REGISTERS */
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#define MAX98090_0x04_SYS_CLK 0x04
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#define MAX98090_0x05_SAMPLE_RATE 0x05
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#define MAX98090_0x06_DAI_IF 0x06
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#define MAX98090_0x07_DAC_PATH 0x07
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#define MAX98090_0x08_MIC_TO_ADC 0x08
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#define MAX98090_0x09_LINE_TO_ADC 0x09
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#define MAX98090_0x0A_ANALOG_MIC_LOOP 0x0A
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#define MAX98090_0x0B_ANALOG_LINE_LOOP 0x0B
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/* ANALOG INPUT CONFIGURATION REGISTERS */
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#define MAX98090_0x0D_INPUT_CONFIG 0x0D
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#define MAX98090_0x0E_LINE_IN_LVL 0x0E
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#define MAX98090_0x0F_LINI_IN_CFG 0x0F
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#define MAX98090_0x10_MIC1_IN_LVL 0x10
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#define MAX98090_0x11_MIC2_IN_LVL 0x11
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/* MICROPHONE CONFIGURATION REGISTERS */
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#define MAX98090_0x12_MIC_BIAS_VOL 0x12
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#define MAX98090_0x13_DIGITAL_MIC_CFG 0x13
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#define MAX98090_0x14_DIGITAL_MIC_MODE 0x14
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/* ADC PATH AND CONFIGURATION REGISTERS */
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#define MAX98090_0x15_L_ADC_MIX 0x15
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#define MAX98090_0x16_R_ADC_MIX 0x16
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#define MAX98090_0x17_L_ADC_LVL 0x17
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#define MAX98090_0x18_R_ADC_LVL 0x18
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#define MAX98090_0x19_ADC_BIQUAD_LVL 0x19
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#define MAX98090_0x1A_ADC_SIDETONE 0x1A
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/* CLOCK CONFIGURATION REGISTERS */
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#define MAX98090_0x1B_SYS_CLK 0x1B
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#define MAX98090_0x1C_CLK_MODE 0x1C
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#define MAX98090_0x1D_ANY_CLK1 0x1D
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#define MAX98090_0x1E_ANY_CLK2 0x1E
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#define MAX98090_0x1F_ANY_CLK3 0x1F
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#define MAX98090_0x20_ANY_CLK4 0x20
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#define MAX98090_0x21_MASTER_MODE 0x21
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/* INTERFACE CONTROL REGISTERS */
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#define MAX98090_0x22_DAI_IF_FMT 0x22
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#define MAX98090_0x23_DAI_TDM_FMT1 0x23
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#define MAX98090_0x24_DAI_TDM_FMT2 0x24
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#define MAX98090_0x25_DAI_IO_CFG 0x25
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#define MAX98090_0x26_FILTER_CFG 0x26
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#define MAX98090_0x27_DAI_PLAYBACK_LVL 0x27
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#define MAX98090_0x28_EQ_PLAYBACK_LVL 0x28
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/* HEADPHONE CONTROL REGISTERS */
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#define MAX98090_0x29_L_HP_MIX 0x29
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#define MAX98090_0x2A_R_HP_MIX 0x2A
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#define MAX98090_0x2B_HP_CTR 0x2B
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#define MAX98090_0x2C_L_HP_VOL 0x2C
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#define MAX98090_0x2D_R_HP_VOL 0x2D
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/* SPEAKER CONFIGURATION REGISTERS */
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#define MAX98090_0x2E_L_SPK_MIX 0x2E
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#define MAX98090_0x2F_R_SPK_MIX 0x2F
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#define MAX98090_0x30_SPK_CTR 0x30
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#define MAX98090_0x31_L_SPK_VOL 0x31
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#define MAX98090_0x32_R_SPK_VOL 0x32
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/* ALC CONFIGURATION REGISTERS */
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#define MAX98090_0x33_ALC_TIMING 0x33
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#define MAX98090_0x34_ALC_COMPRESSOR 0x34
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#define MAX98090_0x35_ALC_EXPANDER 0x35
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#define MAX98090_0x36_ALC_GAIN 0x36
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/* RECEIVER AND LINE_OUTPUT REGISTERS */
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#define MAX98090_0x37_RCV_LOUT_L_MIX 0x37
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#define MAX98090_0x38_RCV_LOUT_L_CNTL 0x38
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#define MAX98090_0x39_RCV_LOUT_L_VOL 0x39
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#define MAX98090_0x3A_LOUT_R_MIX 0x3A
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#define MAX98090_0x3B_LOUT_R_CNTL 0x3B
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#define MAX98090_0x3C_LOUT_R_VOL 0x3C
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/* JACK DETECT AND ENABLE REGISTERS */
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#define MAX98090_0x3D_JACK_DETECT 0x3D
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#define MAX98090_0x3E_IN_ENABLE 0x3E
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#define MAX98090_0x3F_OUT_ENABLE 0x3F
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#define MAX98090_0x40_LVL_CTR 0x40
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#define MAX98090_0x41_DSP_FILTER_ENABLE 0x41
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/* BIAS AND POWER MODE CONFIGURATION REGISTERS */
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#define MAX98090_0x42_BIAS_CTR 0x42
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#define MAX98090_0x43_DAC_CTR 0x43
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#define MAX98090_0x44_ADC_CTR 0x44
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#define MAX98090_0x45_DEV_SHUTDOWN 0x45
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/* REVISION ID REGISTER */
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#define MAX98090_0xFF_REV_ID 0xFF
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#define MAX98090_REG_MAX_CACHED 0x45
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#define MAX98090_REG_END 0xFF
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/*
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*
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* MAX98090 Registers Bit Fields
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*
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*/
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/* MAX98090_0x06_DAI_IF */
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#define MAX98090_DAI_IF_MASK 0x3F
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#define MAX98090_RJ_M (1 << 5)
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#define MAX98090_RJ_S (1 << 4)
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#define MAX98090_LJ_M (1 << 3)
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#define MAX98090_LJ_S (1 << 2)
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#define MAX98090_I2S_M (1 << 1)
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#define MAX98090_I2S_S (1 << 0)
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/* MAX98090_0x45_DEV_SHUTDOWN */
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#define MAX98090_SHDNRUN (1 << 7)
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/* codec private data */
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struct max98090_priv {
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struct regmap *regmap;
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};
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static const struct reg_default max98090_reg_defaults[] = {
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/* RESET / STATUS / INTERRUPT REGISTERS */
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{MAX98090_0x00_SW_RESET, 0x00},
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{MAX98090_0x01_INT_STS, 0x00},
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{MAX98090_0x02_JACK_STS, 0x00},
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{MAX98090_0x03_INT_MASK, 0x04},
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/* QUICK SETUP REGISTERS */
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{MAX98090_0x04_SYS_CLK, 0x00},
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{MAX98090_0x05_SAMPLE_RATE, 0x00},
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{MAX98090_0x06_DAI_IF, 0x00},
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{MAX98090_0x07_DAC_PATH, 0x00},
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{MAX98090_0x08_MIC_TO_ADC, 0x00},
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{MAX98090_0x09_LINE_TO_ADC, 0x00},
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{MAX98090_0x0A_ANALOG_MIC_LOOP, 0x00},
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{MAX98090_0x0B_ANALOG_LINE_LOOP, 0x00},
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/* ANALOG INPUT CONFIGURATION REGISTERS */
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{MAX98090_0x0D_INPUT_CONFIG, 0x00},
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{MAX98090_0x0E_LINE_IN_LVL, 0x1B},
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{MAX98090_0x0F_LINI_IN_CFG, 0x00},
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{MAX98090_0x10_MIC1_IN_LVL, 0x11},
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{MAX98090_0x11_MIC2_IN_LVL, 0x11},
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/* MICROPHONE CONFIGURATION REGISTERS */
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{MAX98090_0x12_MIC_BIAS_VOL, 0x00},
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{MAX98090_0x13_DIGITAL_MIC_CFG, 0x00},
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{MAX98090_0x14_DIGITAL_MIC_MODE, 0x00},
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/* ADC PATH AND CONFIGURATION REGISTERS */
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{MAX98090_0x15_L_ADC_MIX, 0x00},
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{MAX98090_0x16_R_ADC_MIX, 0x00},
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{MAX98090_0x17_L_ADC_LVL, 0x03},
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{MAX98090_0x18_R_ADC_LVL, 0x03},
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{MAX98090_0x19_ADC_BIQUAD_LVL, 0x00},
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{MAX98090_0x1A_ADC_SIDETONE, 0x00},
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/* CLOCK CONFIGURATION REGISTERS */
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{MAX98090_0x1B_SYS_CLK, 0x00},
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{MAX98090_0x1C_CLK_MODE, 0x00},
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{MAX98090_0x1D_ANY_CLK1, 0x00},
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{MAX98090_0x1E_ANY_CLK2, 0x00},
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{MAX98090_0x1F_ANY_CLK3, 0x00},
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{MAX98090_0x20_ANY_CLK4, 0x00},
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{MAX98090_0x21_MASTER_MODE, 0x00},
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/* INTERFACE CONTROL REGISTERS */
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{MAX98090_0x22_DAI_IF_FMT, 0x00},
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{MAX98090_0x23_DAI_TDM_FMT1, 0x00},
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{MAX98090_0x24_DAI_TDM_FMT2, 0x00},
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{MAX98090_0x25_DAI_IO_CFG, 0x00},
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{MAX98090_0x26_FILTER_CFG, 0x80},
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{MAX98090_0x27_DAI_PLAYBACK_LVL, 0x00},
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{MAX98090_0x28_EQ_PLAYBACK_LVL, 0x00},
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/* HEADPHONE CONTROL REGISTERS */
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{MAX98090_0x29_L_HP_MIX, 0x00},
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{MAX98090_0x2A_R_HP_MIX, 0x00},
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{MAX98090_0x2B_HP_CTR, 0x00},
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{MAX98090_0x2C_L_HP_VOL, 0x1A},
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{MAX98090_0x2D_R_HP_VOL, 0x1A},
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/* SPEAKER CONFIGURATION REGISTERS */
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{MAX98090_0x2E_L_SPK_MIX, 0x00},
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{MAX98090_0x2F_R_SPK_MIX, 0x00},
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{MAX98090_0x30_SPK_CTR, 0x00},
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{MAX98090_0x31_L_SPK_VOL, 0x2C},
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{MAX98090_0x32_R_SPK_VOL, 0x2C},
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/* ALC CONFIGURATION REGISTERS */
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{MAX98090_0x33_ALC_TIMING, 0x00},
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{MAX98090_0x34_ALC_COMPRESSOR, 0x00},
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{MAX98090_0x35_ALC_EXPANDER, 0x00},
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{MAX98090_0x36_ALC_GAIN, 0x00},
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/* RECEIVER AND LINE_OUTPUT REGISTERS */
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{MAX98090_0x37_RCV_LOUT_L_MIX, 0x00},
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{MAX98090_0x38_RCV_LOUT_L_CNTL, 0x00},
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{MAX98090_0x39_RCV_LOUT_L_VOL, 0x15},
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{MAX98090_0x3A_LOUT_R_MIX, 0x00},
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{MAX98090_0x3B_LOUT_R_CNTL, 0x00},
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{MAX98090_0x3C_LOUT_R_VOL, 0x15},
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/* JACK DETECT AND ENABLE REGISTERS */
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{MAX98090_0x3D_JACK_DETECT, 0x00},
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{MAX98090_0x3E_IN_ENABLE, 0x00},
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{MAX98090_0x3F_OUT_ENABLE, 0x00},
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{MAX98090_0x40_LVL_CTR, 0x00},
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{MAX98090_0x41_DSP_FILTER_ENABLE, 0x00},
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/* BIAS AND POWER MODE CONFIGURATION REGISTERS */
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{MAX98090_0x42_BIAS_CTR, 0x00},
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{MAX98090_0x43_DAC_CTR, 0x00},
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{MAX98090_0x44_ADC_CTR, 0x06},
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{MAX98090_0x45_DEV_SHUTDOWN, 0x00},
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};
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static const unsigned int max98090_hp_tlv[] = {
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TLV_DB_RANGE_HEAD(5),
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0x0, 0x6, TLV_DB_SCALE_ITEM(-6700, 400, 0),
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0x7, 0xE, TLV_DB_SCALE_ITEM(-4000, 300, 0),
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0xF, 0x15, TLV_DB_SCALE_ITEM(-1700, 200, 0),
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0x16, 0x1B, TLV_DB_SCALE_ITEM(-400, 100, 0),
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0x1C, 0x1F, TLV_DB_SCALE_ITEM(150, 50, 0),
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};
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static struct snd_kcontrol_new max98090_snd_controls[] = {
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SOC_DOUBLE_R_TLV("Headphone Volume", MAX98090_0x2C_L_HP_VOL,
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MAX98090_0x2D_R_HP_VOL, 0, 31, 0, max98090_hp_tlv),
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};
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/* Left HeadPhone Mixer Switch */
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static struct snd_kcontrol_new max98090_left_hp_mixer_controls[] = {
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SOC_DAPM_SINGLE("DACR Switch", MAX98090_0x29_L_HP_MIX, 1, 1, 0),
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SOC_DAPM_SINGLE("DACL Switch", MAX98090_0x29_L_HP_MIX, 0, 1, 0),
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};
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/* Right HeadPhone Mixer Switch */
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static struct snd_kcontrol_new max98090_right_hp_mixer_controls[] = {
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SOC_DAPM_SINGLE("DACR Switch", MAX98090_0x2A_R_HP_MIX, 1, 1, 0),
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SOC_DAPM_SINGLE("DACL Switch", MAX98090_0x2A_R_HP_MIX, 0, 1, 0),
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};
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static struct snd_soc_dapm_widget max98090_dapm_widgets[] = {
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/* Output */
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SND_SOC_DAPM_OUTPUT("HPL"),
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SND_SOC_DAPM_OUTPUT("HPR"),
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/* PGA */
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SND_SOC_DAPM_PGA("HPL Out", MAX98090_0x3F_OUT_ENABLE, 7, 0, NULL, 0),
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SND_SOC_DAPM_PGA("HPR Out", MAX98090_0x3F_OUT_ENABLE, 6, 0, NULL, 0),
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/* Mixer */
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SND_SOC_DAPM_MIXER("HPL Mixer", SND_SOC_NOPM, 0, 0,
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max98090_left_hp_mixer_controls,
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ARRAY_SIZE(max98090_left_hp_mixer_controls)),
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SND_SOC_DAPM_MIXER("HPR Mixer", SND_SOC_NOPM, 0, 0,
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max98090_right_hp_mixer_controls,
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ARRAY_SIZE(max98090_right_hp_mixer_controls)),
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/* DAC */
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SND_SOC_DAPM_DAC("DACL", "Hifi Playback", MAX98090_0x3F_OUT_ENABLE, 0, 0),
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SND_SOC_DAPM_DAC("DACR", "Hifi Playback", MAX98090_0x3F_OUT_ENABLE, 1, 0),
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};
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static struct snd_soc_dapm_route max98090_audio_map[] = {
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/* Output */
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{"HPL", NULL, "HPL Out"},
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{"HPR", NULL, "HPR Out"},
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/* PGA */
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{"HPL Out", NULL, "HPL Mixer"},
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{"HPR Out", NULL, "HPR Mixer"},
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/* Mixer*/
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{"HPL Mixer", "DACR Switch", "DACR"},
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{"HPL Mixer", "DACL Switch", "DACL"},
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{"HPR Mixer", "DACR Switch", "DACR"},
|
||||
{"HPR Mixer", "DACL Switch", "DACL"},
|
||||
};
|
||||
|
||||
static bool max98090_volatile(struct device *dev, unsigned int reg)
|
||||
{
|
||||
if ((reg == MAX98090_0x01_INT_STS) ||
|
||||
(reg == MAX98090_0x02_JACK_STS) ||
|
||||
(reg > MAX98090_REG_MAX_CACHED))
|
||||
return true;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static int max98090_dai_hw_params(struct snd_pcm_substream *substream,
|
||||
struct snd_pcm_hw_params *params,
|
||||
struct snd_soc_dai *dai)
|
||||
{
|
||||
struct snd_soc_codec *codec = dai->codec;
|
||||
unsigned int val;
|
||||
|
||||
switch (params_rate(params)) {
|
||||
case 96000:
|
||||
val = 1 << 5;
|
||||
break;
|
||||
case 32000:
|
||||
val = 1 << 4;
|
||||
break;
|
||||
case 48000:
|
||||
val = 1 << 3;
|
||||
break;
|
||||
case 44100:
|
||||
val = 1 << 2;
|
||||
break;
|
||||
case 16000:
|
||||
val = 1 << 1;
|
||||
break;
|
||||
case 8000:
|
||||
val = 1 << 0;
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "unsupported rate\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
snd_soc_update_bits(codec, MAX98090_0x05_SAMPLE_RATE, 0x03F, val);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max98090_dai_set_sysclk(struct snd_soc_dai *dai,
|
||||
int clk_id, unsigned int freq, int dir)
|
||||
{
|
||||
struct snd_soc_codec *codec = dai->codec;
|
||||
unsigned int val;
|
||||
|
||||
snd_soc_update_bits(codec, MAX98090_0x45_DEV_SHUTDOWN,
|
||||
MAX98090_SHDNRUN, 0);
|
||||
|
||||
switch (freq) {
|
||||
case 26000000:
|
||||
val = 1 << 7;
|
||||
break;
|
||||
case 19200000:
|
||||
val = 1 << 6;
|
||||
break;
|
||||
case 13000000:
|
||||
val = 1 << 5;
|
||||
break;
|
||||
case 12288000:
|
||||
val = 1 << 4;
|
||||
break;
|
||||
case 12000000:
|
||||
val = 1 << 3;
|
||||
break;
|
||||
case 11289600:
|
||||
val = 1 << 2;
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "Invalid master clock frequency\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
snd_soc_update_bits(codec, MAX98090_0x04_SYS_CLK, 0xFD, val);
|
||||
|
||||
snd_soc_update_bits(codec, MAX98090_0x45_DEV_SHUTDOWN,
|
||||
MAX98090_SHDNRUN, MAX98090_SHDNRUN);
|
||||
|
||||
dev_dbg(dai->dev, "sysclk is %uHz\n", freq);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max98090_dai_set_fmt(struct snd_soc_dai *dai,
|
||||
unsigned int fmt)
|
||||
{
|
||||
struct snd_soc_codec *codec = dai->codec;
|
||||
int is_master;
|
||||
u8 val;
|
||||
|
||||
/* master/slave mode */
|
||||
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
||||
case SND_SOC_DAIFMT_CBM_CFM:
|
||||
is_master = 1;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_CBS_CFS:
|
||||
is_master = 0;
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "unsupported clock\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* format */
|
||||
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
||||
case SND_SOC_DAIFMT_I2S:
|
||||
val = (is_master) ? MAX98090_I2S_M : MAX98090_I2S_S;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_RIGHT_J:
|
||||
val = (is_master) ? MAX98090_RJ_M : MAX98090_RJ_S;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_LEFT_J:
|
||||
val = (is_master) ? MAX98090_LJ_M : MAX98090_LJ_S;
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "unsupported format\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
snd_soc_update_bits(codec, MAX98090_0x06_DAI_IF,
|
||||
MAX98090_DAI_IF_MASK, val);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define MAX98090_RATES SNDRV_PCM_RATE_8000_96000
|
||||
#define MAX98090_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
|
||||
|
||||
static struct snd_soc_dai_ops max98090_dai_ops = {
|
||||
.set_sysclk = max98090_dai_set_sysclk,
|
||||
.set_fmt = max98090_dai_set_fmt,
|
||||
.hw_params = max98090_dai_hw_params,
|
||||
};
|
||||
|
||||
static struct snd_soc_dai_driver max98090_dai = {
|
||||
.name = "max98090-Hifi",
|
||||
.playback = {
|
||||
.stream_name = "Playback",
|
||||
.channels_min = 1,
|
||||
.channels_max = 2,
|
||||
.rates = MAX98090_RATES,
|
||||
.formats = MAX98090_FORMATS,
|
||||
},
|
||||
.ops = &max98090_dai_ops,
|
||||
};
|
||||
|
||||
static int max98090_probe(struct snd_soc_codec *codec)
|
||||
{
|
||||
struct max98090_priv *priv = snd_soc_codec_get_drvdata(codec);
|
||||
struct device *dev = codec->dev;
|
||||
int ret;
|
||||
|
||||
codec->control_data = priv->regmap;
|
||||
ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
|
||||
if (ret < 0) {
|
||||
dev_err(dev, "Failed to set cache I/O: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Device active */
|
||||
snd_soc_update_bits(codec, MAX98090_0x45_DEV_SHUTDOWN,
|
||||
MAX98090_SHDNRUN, MAX98090_SHDNRUN);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max98090_remove(struct snd_soc_codec *codec)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct snd_soc_codec_driver soc_codec_dev_max98090 = {
|
||||
.probe = max98090_probe,
|
||||
.remove = max98090_remove,
|
||||
.controls = max98090_snd_controls,
|
||||
.num_controls = ARRAY_SIZE(max98090_snd_controls),
|
||||
.dapm_widgets = max98090_dapm_widgets,
|
||||
.num_dapm_widgets = ARRAY_SIZE(max98090_dapm_widgets),
|
||||
.dapm_routes = max98090_audio_map,
|
||||
.num_dapm_routes = ARRAY_SIZE(max98090_audio_map),
|
||||
};
|
||||
|
||||
static const struct regmap_config max98090_regmap = {
|
||||
.reg_bits = 8,
|
||||
.val_bits = 8,
|
||||
.max_register = MAX98090_REG_END,
|
||||
.volatile_reg = max98090_volatile,
|
||||
.cache_type = REGCACHE_RBTREE,
|
||||
.reg_defaults = max98090_reg_defaults,
|
||||
.num_reg_defaults = ARRAY_SIZE(max98090_reg_defaults),
|
||||
};
|
||||
|
||||
static int max98090_i2c_probe(struct i2c_client *i2c,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct max98090_priv *priv;
|
||||
struct device *dev = &i2c->dev;
|
||||
unsigned int val;
|
||||
int ret;
|
||||
|
||||
priv = devm_kzalloc(dev, sizeof(struct max98090_priv),
|
||||
GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
priv->regmap = devm_regmap_init_i2c(i2c, &max98090_regmap);
|
||||
if (IS_ERR(priv->regmap)) {
|
||||
ret = PTR_ERR(priv->regmap);
|
||||
dev_err(dev, "Failed to init regmap: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
i2c_set_clientdata(i2c, priv);
|
||||
|
||||
ret = regmap_read(priv->regmap, MAX98090_0xFF_REV_ID, &val);
|
||||
if (ret < 0) {
|
||||
dev_err(dev, "Failed to read device revision: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
dev_info(dev, "revision 0x%02x\n", val);
|
||||
|
||||
ret = snd_soc_register_codec(dev,
|
||||
&soc_codec_dev_max98090,
|
||||
&max98090_dai, 1);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int max98090_i2c_remove(struct i2c_client *client)
|
||||
{
|
||||
snd_soc_unregister_codec(&client->dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct i2c_device_id max98090_i2c_id[] = {
|
||||
{ "max98090", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, max98090_i2c_id);
|
||||
|
||||
static struct i2c_driver max98090_i2c_driver = {
|
||||
.driver = {
|
||||
.name = "max98090",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
.probe = max98090_i2c_probe,
|
||||
.remove = max98090_i2c_remove,
|
||||
.id_table = max98090_i2c_id,
|
||||
};
|
||||
module_i2c_driver(max98090_i2c_driver);
|
||||
|
||||
MODULE_DESCRIPTION("ALSA SoC MAX98090 driver");
|
||||
MODULE_AUTHOR("Peter Hsiang, Kuninori Morimoto");
|
||||
MODULE_LICENSE("GPL");
|
||||
Loading…
Reference in New Issue
Block a user