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https://mirrors.bfsu.edu.cn/git/linux.git
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e354d86e55
Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: anish kumar <yesanishhere@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
607 lines
16 KiB
C
607 lines
16 KiB
C
/*
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* max98926.c -- ALSA SoC MAX98926 driver
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* Copyright 2013-15 Maxim Integrated Products
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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/delay.h>
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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 <linux/slab.h>
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#include <linux/cdev.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#include "max98926.h"
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static const char * const max98926_boost_voltage_txt[] = {
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"8.5V", "8.25V", "8.0V", "7.75V", "7.5V", "7.25V", "7.0V", "6.75V",
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"6.5V", "6.5V", "6.5V", "6.5V", "6.5V", "6.5V", "6.5V", "6.5V"
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};
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static const char * const max98926_boost_current_txt[] = {
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"0.6", "0.8", "1.0", "1.2", "1.4", "1.6", "1.8", "2.0",
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"2.2", "2.4", "2.6", "2.8", "3.2", "3.6", "4.0", "4.4"
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};
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static const char *const max98926_dai_txt[] = {
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"Left", "Right", "LeftRight", "LeftRightDiv2",
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};
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static const char *const max98926_pdm_ch_text[] = {
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"Current", "Voltage",
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};
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static const char *const max98926_hpf_cutoff_txt[] = {
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"Disable", "DC Block", "100Hz",
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"200Hz", "400Hz", "800Hz",
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};
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static const struct reg_default max98926_reg[] = {
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{ 0x0B, 0x00 }, /* IRQ Enable0 */
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{ 0x0C, 0x00 }, /* IRQ Enable1 */
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{ 0x0D, 0x00 }, /* IRQ Enable2 */
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{ 0x0E, 0x00 }, /* IRQ Clear0 */
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{ 0x0F, 0x00 }, /* IRQ Clear1 */
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{ 0x10, 0x00 }, /* IRQ Clear2 */
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{ 0x11, 0xC0 }, /* Map0 */
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{ 0x12, 0x00 }, /* Map1 */
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{ 0x13, 0x00 }, /* Map2 */
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{ 0x14, 0xF0 }, /* Map3 */
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{ 0x15, 0x00 }, /* Map4 */
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{ 0x16, 0xAB }, /* Map5 */
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{ 0x17, 0x89 }, /* Map6 */
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{ 0x18, 0x00 }, /* Map7 */
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{ 0x19, 0x00 }, /* Map8 */
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{ 0x1A, 0x04 }, /* DAI Clock Mode 1 */
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{ 0x1B, 0x00 }, /* DAI Clock Mode 2 */
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{ 0x1C, 0x00 }, /* DAI Clock Divider Denominator MSBs */
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{ 0x1D, 0x00 }, /* DAI Clock Divider Denominator LSBs */
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{ 0x1E, 0xF0 }, /* DAI Clock Divider Numerator MSBs */
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{ 0x1F, 0x00 }, /* DAI Clock Divider Numerator LSBs */
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{ 0x20, 0x50 }, /* Format */
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{ 0x21, 0x00 }, /* TDM Slot Select */
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{ 0x22, 0x00 }, /* DOUT Configuration VMON */
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{ 0x23, 0x00 }, /* DOUT Configuration IMON */
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{ 0x24, 0x00 }, /* DOUT Configuration VBAT */
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{ 0x25, 0x00 }, /* DOUT Configuration VBST */
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{ 0x26, 0x00 }, /* DOUT Configuration FLAG */
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{ 0x27, 0xFF }, /* DOUT HiZ Configuration 1 */
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{ 0x28, 0xFF }, /* DOUT HiZ Configuration 2 */
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{ 0x29, 0xFF }, /* DOUT HiZ Configuration 3 */
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{ 0x2A, 0xFF }, /* DOUT HiZ Configuration 4 */
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{ 0x2B, 0x02 }, /* DOUT Drive Strength */
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{ 0x2C, 0x90 }, /* Filters */
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{ 0x2D, 0x00 }, /* Gain */
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{ 0x2E, 0x02 }, /* Gain Ramping */
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{ 0x2F, 0x00 }, /* Speaker Amplifier */
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{ 0x30, 0x0A }, /* Threshold */
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{ 0x31, 0x00 }, /* ALC Attack */
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{ 0x32, 0x80 }, /* ALC Atten and Release */
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{ 0x33, 0x00 }, /* ALC Infinite Hold Release */
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{ 0x34, 0x92 }, /* ALC Configuration */
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{ 0x35, 0x01 }, /* Boost Converter */
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{ 0x36, 0x00 }, /* Block Enable */
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{ 0x37, 0x00 }, /* Configuration */
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{ 0x38, 0x00 }, /* Global Enable */
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{ 0x3A, 0x00 }, /* Boost Limiter */
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};
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static const struct soc_enum max98926_voltage_enum[] = {
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SOC_ENUM_SINGLE(MAX98926_DAI_CLK_DIV_N_LSBS, 0,
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ARRAY_SIZE(max98926_pdm_ch_text),
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max98926_pdm_ch_text),
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};
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static const struct snd_kcontrol_new max98926_voltage_control =
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SOC_DAPM_ENUM("Route", max98926_voltage_enum);
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static const struct soc_enum max98926_current_enum[] = {
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SOC_ENUM_SINGLE(MAX98926_DAI_CLK_DIV_N_LSBS,
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MAX98926_PDM_SOURCE_1_SHIFT,
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ARRAY_SIZE(max98926_pdm_ch_text),
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max98926_pdm_ch_text),
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};
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static const struct snd_kcontrol_new max98926_current_control =
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SOC_DAPM_ENUM("Route", max98926_current_enum);
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static const struct snd_kcontrol_new max98926_mixer_controls[] = {
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SOC_DAPM_SINGLE("PCM Single Switch", MAX98926_SPK_AMP,
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MAX98926_INSELECT_MODE_SHIFT, 0, 0),
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SOC_DAPM_SINGLE("PDM Single Switch", MAX98926_SPK_AMP,
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MAX98926_INSELECT_MODE_SHIFT, 1, 0),
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};
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static const struct snd_kcontrol_new max98926_dai_controls[] = {
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SOC_DAPM_SINGLE("Left", MAX98926_GAIN,
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MAX98926_DAC_IN_SEL_SHIFT, 0, 0),
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SOC_DAPM_SINGLE("Right", MAX98926_GAIN,
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MAX98926_DAC_IN_SEL_SHIFT, 1, 0),
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SOC_DAPM_SINGLE("LeftRight", MAX98926_GAIN,
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MAX98926_DAC_IN_SEL_SHIFT, 2, 0),
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SOC_DAPM_SINGLE("(Left+Right)/2 Switch", MAX98926_GAIN,
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MAX98926_DAC_IN_SEL_SHIFT, 3, 0),
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};
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static const struct snd_soc_dapm_widget max98926_dapm_widgets[] = {
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SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0,
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SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_DAC("Amp Enable", NULL, MAX98926_BLOCK_ENABLE,
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MAX98926_SPK_EN_SHIFT, 0),
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SND_SOC_DAPM_SUPPLY("Global Enable", MAX98926_GLOBAL_ENABLE,
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MAX98926_EN_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY("VI Enable", MAX98926_BLOCK_ENABLE,
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MAX98926_ADC_IMON_EN_WIDTH |
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MAX98926_ADC_VMON_EN_SHIFT,
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0, NULL, 0),
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SND_SOC_DAPM_PGA("BST Enable", MAX98926_BLOCK_ENABLE,
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MAX98926_BST_EN_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_OUTPUT("BE_OUT"),
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SND_SOC_DAPM_MIXER("PCM Sel", MAX98926_SPK_AMP,
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MAX98926_INSELECT_MODE_SHIFT, 0,
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&max98926_mixer_controls[0],
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ARRAY_SIZE(max98926_mixer_controls)),
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SND_SOC_DAPM_MIXER("DAI Sel",
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MAX98926_GAIN, MAX98926_DAC_IN_SEL_SHIFT, 0,
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&max98926_dai_controls[0],
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ARRAY_SIZE(max98926_dai_controls)),
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SND_SOC_DAPM_MUX("PDM CH1 Source",
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MAX98926_DAI_CLK_DIV_N_LSBS,
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MAX98926_PDM_CURRENT_SHIFT,
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0, &max98926_current_control),
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SND_SOC_DAPM_MUX("PDM CH0 Source",
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MAX98926_DAI_CLK_DIV_N_LSBS,
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MAX98926_PDM_VOLTAGE_SHIFT,
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0, &max98926_voltage_control),
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};
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static const struct snd_soc_dapm_route max98926_audio_map[] = {
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{"VI Enable", NULL, "DAI_OUT"},
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{"DAI Sel", "Left", "VI Enable"},
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{"DAI Sel", "Right", "VI Enable"},
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{"DAI Sel", "LeftRight", "VI Enable"},
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{"DAI Sel", "LeftRightDiv2", "VI Enable"},
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{"PCM Sel", "PCM", "DAI Sel"},
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{"PDM CH1 Source", "Current", "DAI_OUT"},
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{"PDM CH1 Source", "Voltage", "DAI_OUT"},
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{"PDM CH0 Source", "Current", "DAI_OUT"},
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{"PDM CH0 Source", "Voltage", "DAI_OUT"},
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{"PCM Sel", "Analog", "PDM CH1 Source"},
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{"PCM Sel", "Analog", "PDM CH0 Source"},
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{"Amp Enable", NULL, "PCM Sel"},
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{"BST Enable", NULL, "Amp Enable"},
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{"BE_OUT", NULL, "BST Enable"},
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};
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static bool max98926_volatile_register(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case MAX98926_VBAT_DATA:
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case MAX98926_VBST_DATA:
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case MAX98926_LIVE_STATUS0:
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case MAX98926_LIVE_STATUS1:
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case MAX98926_LIVE_STATUS2:
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case MAX98926_STATE0:
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case MAX98926_STATE1:
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case MAX98926_STATE2:
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case MAX98926_FLAG0:
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case MAX98926_FLAG1:
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case MAX98926_FLAG2:
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case MAX98926_VERSION:
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return true;
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default:
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return false;
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}
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}
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static bool max98926_readable_register(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case MAX98926_IRQ_CLEAR0:
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case MAX98926_IRQ_CLEAR1:
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case MAX98926_IRQ_CLEAR2:
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case MAX98926_ALC_HOLD_RLS:
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return false;
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default:
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return true;
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}
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};
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DECLARE_TLV_DB_SCALE(max98926_spk_tlv, -600, 100, 0);
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DECLARE_TLV_DB_RANGE(max98926_current_tlv,
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0, 11, TLV_DB_SCALE_ITEM(20, 20, 0),
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12, 15, TLV_DB_SCALE_ITEM(320, 40, 0),
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);
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static SOC_ENUM_SINGLE_DECL(max98926_dac_hpf_cutoff,
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MAX98926_FILTERS, MAX98926_DAC_HPF_SHIFT,
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max98926_hpf_cutoff_txt);
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static SOC_ENUM_SINGLE_DECL(max98926_boost_voltage,
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MAX98926_CONFIGURATION, MAX98926_BST_VOUT_SHIFT,
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max98926_boost_voltage_txt);
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static const struct snd_kcontrol_new max98926_snd_controls[] = {
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SOC_SINGLE_TLV("Speaker Volume", MAX98926_GAIN,
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MAX98926_SPK_GAIN_SHIFT,
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(1<<MAX98926_SPK_GAIN_WIDTH)-1, 0,
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max98926_spk_tlv),
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SOC_SINGLE("Ramp Switch", MAX98926_GAIN_RAMPING,
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MAX98926_SPK_RMP_EN_SHIFT, 1, 0),
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SOC_SINGLE("ZCD Switch", MAX98926_GAIN_RAMPING,
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MAX98926_SPK_ZCD_EN_SHIFT, 1, 0),
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SOC_SINGLE("ALC Switch", MAX98926_THRESHOLD,
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MAX98926_ALC_EN_SHIFT, 1, 0),
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SOC_SINGLE("ALC Threshold", MAX98926_THRESHOLD,
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MAX98926_ALC_TH_SHIFT,
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(1<<MAX98926_ALC_TH_WIDTH)-1, 0),
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SOC_ENUM("Boost Output Voltage", max98926_boost_voltage),
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SOC_SINGLE_TLV("Boost Current Limit", MAX98926_BOOST_LIMITER,
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MAX98926_BST_ILIM_SHIFT,
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(1<<MAX98926_BST_ILIM_SHIFT)-1, 0,
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max98926_current_tlv),
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SOC_ENUM("DAC HPF Cutoff", max98926_dac_hpf_cutoff),
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SOC_DOUBLE("PDM Channel One", MAX98926_DAI_CLK_DIV_N_LSBS,
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MAX98926_PDM_CHANNEL_1_SHIFT,
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MAX98926_PDM_CHANNEL_1_HIZ, 1, 0),
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SOC_DOUBLE("PDM Channel Zero", MAX98926_DAI_CLK_DIV_N_LSBS,
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MAX98926_PDM_CHANNEL_0_SHIFT,
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MAX98926_PDM_CHANNEL_0_HIZ, 1, 0),
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};
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static const struct {
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int rate;
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int sr;
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} rate_table[] = {
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{
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.rate = 8000,
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.sr = 0,
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},
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{
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.rate = 11025,
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.sr = 1,
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},
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{
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.rate = 12000,
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.sr = 2,
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},
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{
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.rate = 16000,
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.sr = 3,
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},
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{
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.rate = 22050,
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.sr = 4,
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},
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{
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.rate = 24000,
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.sr = 5,
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},
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{
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.rate = 32000,
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.sr = 6,
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},
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{
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.rate = 44100,
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.sr = 7,
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},
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{
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.rate = 48000,
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.sr = 8,
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},
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};
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static void max98926_set_sense_data(struct max98926_priv *max98926)
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{
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regmap_update_bits(max98926->regmap,
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MAX98926_DOUT_CFG_VMON,
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MAX98926_DAI_VMON_EN_MASK,
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MAX98926_DAI_VMON_EN_MASK);
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regmap_update_bits(max98926->regmap,
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MAX98926_DOUT_CFG_IMON,
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MAX98926_DAI_IMON_EN_MASK,
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MAX98926_DAI_IMON_EN_MASK);
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if (!max98926->interleave_mode) {
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/* set VMON slots */
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regmap_update_bits(max98926->regmap,
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MAX98926_DOUT_CFG_VMON,
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MAX98926_DAI_VMON_SLOT_MASK,
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max98926->v_slot);
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/* set IMON slots */
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regmap_update_bits(max98926->regmap,
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MAX98926_DOUT_CFG_IMON,
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MAX98926_DAI_IMON_SLOT_MASK,
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max98926->i_slot);
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} else {
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/* enable interleave mode */
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regmap_update_bits(max98926->regmap,
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MAX98926_FORMAT,
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MAX98926_DAI_INTERLEAVE_MASK,
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MAX98926_DAI_INTERLEAVE_MASK);
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/* set interleave slots */
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regmap_update_bits(max98926->regmap,
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MAX98926_DOUT_CFG_VBAT,
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MAX98926_DAI_INTERLEAVE_SLOT_MASK,
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max98926->v_slot);
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}
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}
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static int max98926_dai_set_fmt(struct snd_soc_dai *codec_dai,
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unsigned int fmt)
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{
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struct snd_soc_codec *codec = codec_dai->codec;
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struct max98926_priv *max98926 = snd_soc_codec_get_drvdata(codec);
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unsigned int invert = 0;
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dev_dbg(codec->dev, "%s: fmt 0x%08X\n", __func__, fmt);
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switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
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case SND_SOC_DAIFMT_CBS_CFS:
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max98926_set_sense_data(max98926);
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break;
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default:
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dev_err(codec->dev, "DAI clock mode unsupported");
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return -EINVAL;
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}
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switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
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case SND_SOC_DAIFMT_NB_NF:
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break;
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case SND_SOC_DAIFMT_NB_IF:
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invert = MAX98926_DAI_WCI_MASK;
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break;
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case SND_SOC_DAIFMT_IB_NF:
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invert = MAX98926_DAI_BCI_MASK;
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break;
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case SND_SOC_DAIFMT_IB_IF:
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invert = MAX98926_DAI_BCI_MASK | MAX98926_DAI_WCI_MASK;
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break;
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default:
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dev_err(codec->dev, "DAI invert mode unsupported");
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return -EINVAL;
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}
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regmap_write(max98926->regmap,
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MAX98926_FORMAT, MAX98926_DAI_DLY_MASK);
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regmap_update_bits(max98926->regmap, MAX98926_FORMAT,
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MAX98926_DAI_BCI_MASK, invert);
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return 0;
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}
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static int max98926_dai_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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int dai_sr = -EINVAL;
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int rate = params_rate(params), i;
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struct snd_soc_codec *codec = dai->codec;
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struct max98926_priv *max98926 = snd_soc_codec_get_drvdata(codec);
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int blr_clk_ratio;
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switch (params_format(params)) {
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case SNDRV_PCM_FORMAT_S16_LE:
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regmap_update_bits(max98926->regmap,
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MAX98926_FORMAT,
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MAX98926_DAI_CHANSZ_MASK,
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MAX98926_DAI_CHANSZ_16);
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max98926->ch_size = 16;
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break;
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case SNDRV_PCM_FORMAT_S24_LE:
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regmap_update_bits(max98926->regmap,
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MAX98926_FORMAT,
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MAX98926_DAI_CHANSZ_MASK,
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MAX98926_DAI_CHANSZ_24);
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max98926->ch_size = 24;
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break;
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case SNDRV_PCM_FORMAT_S32_LE:
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regmap_update_bits(max98926->regmap,
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MAX98926_FORMAT,
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MAX98926_DAI_CHANSZ_MASK,
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MAX98926_DAI_CHANSZ_32);
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max98926->ch_size = 32;
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break;
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default:
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dev_dbg(codec->dev, "format unsupported %d",
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params_format(params));
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return -EINVAL;
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}
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/* BCLK/LRCLK ratio calculation */
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blr_clk_ratio = params_channels(params) * max98926->ch_size;
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switch (blr_clk_ratio) {
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case 32:
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regmap_update_bits(max98926->regmap,
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MAX98926_DAI_CLK_MODE2,
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MAX98926_DAI_BSEL_MASK,
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MAX98926_DAI_BSEL_32);
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break;
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case 48:
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regmap_update_bits(max98926->regmap,
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MAX98926_DAI_CLK_MODE2,
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MAX98926_DAI_BSEL_MASK,
|
|
MAX98926_DAI_BSEL_48);
|
|
break;
|
|
case 64:
|
|
regmap_update_bits(max98926->regmap,
|
|
MAX98926_DAI_CLK_MODE2,
|
|
MAX98926_DAI_BSEL_MASK,
|
|
MAX98926_DAI_BSEL_64);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* find the closest rate */
|
|
for (i = 0; i < ARRAY_SIZE(rate_table); i++) {
|
|
if (rate_table[i].rate >= rate) {
|
|
dai_sr = rate_table[i].sr;
|
|
break;
|
|
}
|
|
}
|
|
if (dai_sr < 0)
|
|
return -EINVAL;
|
|
|
|
/* set DAI_SR to correct LRCLK frequency */
|
|
regmap_update_bits(max98926->regmap,
|
|
MAX98926_DAI_CLK_MODE2,
|
|
MAX98926_DAI_SR_MASK, dai_sr << MAX98926_DAI_SR_SHIFT);
|
|
return 0;
|
|
}
|
|
|
|
#define MAX98926_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
|
|
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
|
|
|
|
static struct snd_soc_dai_ops max98926_dai_ops = {
|
|
.set_fmt = max98926_dai_set_fmt,
|
|
.hw_params = max98926_dai_hw_params,
|
|
};
|
|
|
|
static struct snd_soc_dai_driver max98926_dai[] = {
|
|
{
|
|
.name = "max98926-aif1",
|
|
.playback = {
|
|
.stream_name = "HiFi Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = SNDRV_PCM_RATE_8000_48000,
|
|
.formats = MAX98926_FORMATS,
|
|
},
|
|
.capture = {
|
|
.stream_name = "HiFi Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = SNDRV_PCM_RATE_8000_48000,
|
|
.formats = MAX98926_FORMATS,
|
|
},
|
|
.ops = &max98926_dai_ops,
|
|
}
|
|
};
|
|
|
|
static int max98926_probe(struct snd_soc_codec *codec)
|
|
{
|
|
struct max98926_priv *max98926 = snd_soc_codec_get_drvdata(codec);
|
|
|
|
max98926->codec = codec;
|
|
codec->control_data = max98926->regmap;
|
|
/* Hi-Z all the slots */
|
|
regmap_write(max98926->regmap, MAX98926_DOUT_HIZ_CFG4, 0xF0);
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_codec_driver soc_codec_dev_max98926 = {
|
|
.probe = max98926_probe,
|
|
.controls = max98926_snd_controls,
|
|
.num_controls = ARRAY_SIZE(max98926_snd_controls),
|
|
.dapm_routes = max98926_audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(max98926_audio_map),
|
|
.dapm_widgets = max98926_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(max98926_dapm_widgets),
|
|
};
|
|
|
|
static const struct regmap_config max98926_regmap = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.max_register = MAX98926_VERSION,
|
|
.reg_defaults = max98926_reg,
|
|
.num_reg_defaults = ARRAY_SIZE(max98926_reg),
|
|
.volatile_reg = max98926_volatile_register,
|
|
.readable_reg = max98926_readable_register,
|
|
.cache_type = REGCACHE_RBTREE,
|
|
};
|
|
|
|
static int max98926_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
int ret, reg;
|
|
u32 value;
|
|
struct max98926_priv *max98926;
|
|
|
|
max98926 = devm_kzalloc(&i2c->dev,
|
|
sizeof(*max98926), GFP_KERNEL);
|
|
if (!max98926)
|
|
return -ENOMEM;
|
|
|
|
i2c_set_clientdata(i2c, max98926);
|
|
max98926->regmap = devm_regmap_init_i2c(i2c, &max98926_regmap);
|
|
if (IS_ERR(max98926->regmap)) {
|
|
ret = PTR_ERR(max98926->regmap);
|
|
dev_err(&i2c->dev,
|
|
"Failed to allocate regmap: %d\n", ret);
|
|
goto err_out;
|
|
}
|
|
if (of_property_read_bool(i2c->dev.of_node, "interleave-mode"))
|
|
max98926->interleave_mode = true;
|
|
|
|
if (!of_property_read_u32(i2c->dev.of_node, "vmon-slot-no", &value)) {
|
|
if (value > MAX98926_DAI_VMON_SLOT_1E_1F) {
|
|
dev_err(&i2c->dev, "vmon slot number is wrong:\n");
|
|
return -EINVAL;
|
|
}
|
|
max98926->v_slot = value;
|
|
}
|
|
if (!of_property_read_u32(i2c->dev.of_node, "imon-slot-no", &value)) {
|
|
if (value > MAX98926_DAI_IMON_SLOT_1E_1F) {
|
|
dev_err(&i2c->dev, "imon slot number is wrong:\n");
|
|
return -EINVAL;
|
|
}
|
|
max98926->i_slot = value;
|
|
}
|
|
ret = regmap_read(max98926->regmap,
|
|
MAX98926_VERSION, ®);
|
|
if (ret < 0) {
|
|
dev_err(&i2c->dev, "Failed to read: %x\n", reg);
|
|
return ret;
|
|
}
|
|
|
|
ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_max98926,
|
|
max98926_dai, ARRAY_SIZE(max98926_dai));
|
|
if (ret < 0)
|
|
dev_err(&i2c->dev,
|
|
"Failed to register codec: %d\n", ret);
|
|
dev_info(&i2c->dev, "device version: %x\n", reg);
|
|
err_out:
|
|
return ret;
|
|
}
|
|
|
|
static int max98926_i2c_remove(struct i2c_client *client)
|
|
{
|
|
snd_soc_unregister_codec(&client->dev);
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id max98926_i2c_id[] = {
|
|
{ "max98926", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, max98926_i2c_id);
|
|
|
|
static const struct of_device_id max98926_of_match[] = {
|
|
{ .compatible = "maxim,max98926", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, max98926_of_match);
|
|
|
|
static struct i2c_driver max98926_i2c_driver = {
|
|
.driver = {
|
|
.name = "max98926",
|
|
.of_match_table = of_match_ptr(max98926_of_match),
|
|
.pm = NULL,
|
|
},
|
|
.probe = max98926_i2c_probe,
|
|
.remove = max98926_i2c_remove,
|
|
.id_table = max98926_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(max98926_i2c_driver)
|
|
MODULE_DESCRIPTION("ALSA SoC MAX98926 driver");
|
|
MODULE_AUTHOR("Anish kumar <anish.kumar@maximintegrated.com>");
|
|
MODULE_LICENSE("GPL");
|