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linux/sound/soc/codecs/rt5514.c

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/*
* rt5514.c -- RT5514 ALSA SoC audio codec driver
*
* Copyright 2015 Realtek Semiconductor Corp.
* Author: Oder Chiou <oder_chiou@realtek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/regmap.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/firmware.h>
#include <linux/gpio.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "rl6231.h"
#include "rt5514.h"
#if defined(CONFIG_SND_SOC_RT5514_SPI)
#include "rt5514-spi.h"
#endif
static const struct reg_sequence rt5514_i2c_patch[] = {
{0x1800101c, 0x00000000},
{0x18001100, 0x0000031f},
{0x18001104, 0x00000007},
{0x18001108, 0x00000000},
{0x1800110c, 0x00000000},
{0x18001110, 0x00000000},
{0x18001114, 0x00000001},
{0x18001118, 0x00000000},
{0x18002f08, 0x00000006},
{0x18002f00, 0x00055149},
{0x18002f00, 0x0005514b},
{0x18002f00, 0x00055149},
{0xfafafafa, 0x00000001},
{0x18002f10, 0x00000001},
{0x18002f10, 0x00000000},
{0x18002f10, 0x00000001},
{0xfafafafa, 0x00000001},
{0x18002000, 0x000010ec},
{0xfafafafa, 0x00000000},
};
static const struct reg_sequence rt5514_patch[] = {
{RT5514_DIG_IO_CTRL, 0x00000040},
{RT5514_CLK_CTRL1, 0x38020041},
{RT5514_SRC_CTRL, 0x44000eee},
{RT5514_ANA_CTRL_LDO10, 0x00028604},
{RT5514_ANA_CTRL_ADCFED, 0x00000800},
};
static const struct reg_default rt5514_reg[] = {
{RT5514_RESET, 0x00000000},
{RT5514_PWR_ANA1, 0x00808880},
{RT5514_PWR_ANA2, 0x00220000},
{RT5514_I2S_CTRL1, 0x00000330},
{RT5514_I2S_CTRL2, 0x20000000},
{RT5514_VAD_CTRL6, 0xc00007d2},
{RT5514_EXT_VAD_CTRL, 0x80000080},
{RT5514_DIG_IO_CTRL, 0x00000040},
{RT5514_PAD_CTRL1, 0x00804000},
{RT5514_DMIC_DATA_CTRL, 0x00000005},
{RT5514_DIG_SOURCE_CTRL, 0x00000002},
{RT5514_SRC_CTRL, 0x44000eee},
{RT5514_DOWNFILTER2_CTRL1, 0x0000882f},
{RT5514_PLL_SOURCE_CTRL, 0x00000004},
{RT5514_CLK_CTRL1, 0x38020041},
{RT5514_CLK_CTRL2, 0x00000000},
{RT5514_PLL3_CALIB_CTRL1, 0x00400200},
{RT5514_PLL3_CALIB_CTRL5, 0x40220012},
{RT5514_DELAY_BUF_CTRL1, 0x7fff006a},
{RT5514_DELAY_BUF_CTRL3, 0x00000000},
{RT5514_DOWNFILTER0_CTRL1, 0x00020c2f},
{RT5514_DOWNFILTER0_CTRL2, 0x00020c2f},
{RT5514_DOWNFILTER0_CTRL3, 0x00000362},
{RT5514_DOWNFILTER1_CTRL1, 0x00020c2f},
{RT5514_DOWNFILTER1_CTRL2, 0x00020c2f},
{RT5514_DOWNFILTER1_CTRL3, 0x00000362},
{RT5514_ANA_CTRL_LDO10, 0x00028604},
{RT5514_ANA_CTRL_LDO18_16, 0x02000345},
{RT5514_ANA_CTRL_ADC12, 0x0000a2a8},
{RT5514_ANA_CTRL_ADC21, 0x00001180},
{RT5514_ANA_CTRL_ADC22, 0x0000aaa8},
{RT5514_ANA_CTRL_ADC23, 0x00151427},
{RT5514_ANA_CTRL_MICBST, 0x00002000},
{RT5514_ANA_CTRL_ADCFED, 0x00000800},
{RT5514_ANA_CTRL_INBUF, 0x00000143},
{RT5514_ANA_CTRL_VREF, 0x00008d50},
{RT5514_ANA_CTRL_PLL3, 0x0000000e},
{RT5514_ANA_CTRL_PLL1_1, 0x00000000},
{RT5514_ANA_CTRL_PLL1_2, 0x00030220},
{RT5514_DMIC_LP_CTRL, 0x00000000},
{RT5514_MISC_CTRL_DSP, 0x00000000},
{RT5514_DSP_CTRL1, 0x00055149},
{RT5514_DSP_CTRL3, 0x00000006},
{RT5514_DSP_CTRL4, 0x00000001},
{RT5514_VENDOR_ID1, 0x00000001},
{RT5514_VENDOR_ID2, 0x10ec5514},
};
static void rt5514_enable_dsp_prepare(struct rt5514_priv *rt5514)
{
/* Reset */
regmap_write(rt5514->i2c_regmap, 0x18002000, 0x000010ec);
/* LDO_I_limit */
regmap_write(rt5514->i2c_regmap, 0x18002200, 0x00028604);
/* I2C bypass enable */
regmap_write(rt5514->i2c_regmap, 0xfafafafa, 0x00000001);
/* mini-core reset */
regmap_write(rt5514->i2c_regmap, 0x18002f00, 0x0005514b);
regmap_write(rt5514->i2c_regmap, 0x18002f00, 0x00055149);
/* I2C bypass disable */
regmap_write(rt5514->i2c_regmap, 0xfafafafa, 0x00000000);
/* PIN config */
regmap_write(rt5514->i2c_regmap, 0x18002070, 0x00000040);
/* PLL3(QN)=RCOSC*(10+2) */
regmap_write(rt5514->i2c_regmap, 0x18002240, 0x0000000a);
/* PLL3 source=RCOSC, fsi=rt_clk */
regmap_write(rt5514->i2c_regmap, 0x18002100, 0x0000000b);
/* Power on RCOSC, pll3 */
regmap_write(rt5514->i2c_regmap, 0x18002004, 0x00808b81);
/* DSP clk source = pll3, ENABLE DSP clk */
regmap_write(rt5514->i2c_regmap, 0x18002f08, 0x00000005);
/* Enable DSP clk auto switch */
regmap_write(rt5514->i2c_regmap, 0x18001114, 0x00000001);
/* Reduce DSP power */
regmap_write(rt5514->i2c_regmap, 0x18001118, 0x00000001);
}
static bool rt5514_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case RT5514_VENDOR_ID1:
case RT5514_VENDOR_ID2:
return true;
default:
return false;
}
}
static bool rt5514_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case RT5514_RESET:
case RT5514_PWR_ANA1:
case RT5514_PWR_ANA2:
case RT5514_I2S_CTRL1:
case RT5514_I2S_CTRL2:
case RT5514_VAD_CTRL6:
case RT5514_EXT_VAD_CTRL:
case RT5514_DIG_IO_CTRL:
case RT5514_PAD_CTRL1:
case RT5514_DMIC_DATA_CTRL:
case RT5514_DIG_SOURCE_CTRL:
case RT5514_SRC_CTRL:
case RT5514_DOWNFILTER2_CTRL1:
case RT5514_PLL_SOURCE_CTRL:
case RT5514_CLK_CTRL1:
case RT5514_CLK_CTRL2:
case RT5514_PLL3_CALIB_CTRL1:
case RT5514_PLL3_CALIB_CTRL5:
case RT5514_DELAY_BUF_CTRL1:
case RT5514_DELAY_BUF_CTRL3:
case RT5514_DOWNFILTER0_CTRL1:
case RT5514_DOWNFILTER0_CTRL2:
case RT5514_DOWNFILTER0_CTRL3:
case RT5514_DOWNFILTER1_CTRL1:
case RT5514_DOWNFILTER1_CTRL2:
case RT5514_DOWNFILTER1_CTRL3:
case RT5514_ANA_CTRL_LDO10:
case RT5514_ANA_CTRL_LDO18_16:
case RT5514_ANA_CTRL_ADC12:
case RT5514_ANA_CTRL_ADC21:
case RT5514_ANA_CTRL_ADC22:
case RT5514_ANA_CTRL_ADC23:
case RT5514_ANA_CTRL_MICBST:
case RT5514_ANA_CTRL_ADCFED:
case RT5514_ANA_CTRL_INBUF:
case RT5514_ANA_CTRL_VREF:
case RT5514_ANA_CTRL_PLL3:
case RT5514_ANA_CTRL_PLL1_1:
case RT5514_ANA_CTRL_PLL1_2:
case RT5514_DMIC_LP_CTRL:
case RT5514_MISC_CTRL_DSP:
case RT5514_DSP_CTRL1:
case RT5514_DSP_CTRL3:
case RT5514_DSP_CTRL4:
case RT5514_VENDOR_ID1:
case RT5514_VENDOR_ID2:
return true;
default:
return false;
}
}
static bool rt5514_i2c_readable_register(struct device *dev,
unsigned int reg)
{
switch (reg) {
case RT5514_DSP_MAPPING | RT5514_RESET:
case RT5514_DSP_MAPPING | RT5514_PWR_ANA1:
case RT5514_DSP_MAPPING | RT5514_PWR_ANA2:
case RT5514_DSP_MAPPING | RT5514_I2S_CTRL1:
case RT5514_DSP_MAPPING | RT5514_I2S_CTRL2:
case RT5514_DSP_MAPPING | RT5514_VAD_CTRL6:
case RT5514_DSP_MAPPING | RT5514_EXT_VAD_CTRL:
case RT5514_DSP_MAPPING | RT5514_DIG_IO_CTRL:
case RT5514_DSP_MAPPING | RT5514_PAD_CTRL1:
case RT5514_DSP_MAPPING | RT5514_DMIC_DATA_CTRL:
case RT5514_DSP_MAPPING | RT5514_DIG_SOURCE_CTRL:
case RT5514_DSP_MAPPING | RT5514_SRC_CTRL:
case RT5514_DSP_MAPPING | RT5514_DOWNFILTER2_CTRL1:
case RT5514_DSP_MAPPING | RT5514_PLL_SOURCE_CTRL:
case RT5514_DSP_MAPPING | RT5514_CLK_CTRL1:
case RT5514_DSP_MAPPING | RT5514_CLK_CTRL2:
case RT5514_DSP_MAPPING | RT5514_PLL3_CALIB_CTRL1:
case RT5514_DSP_MAPPING | RT5514_PLL3_CALIB_CTRL5:
case RT5514_DSP_MAPPING | RT5514_DELAY_BUF_CTRL1:
case RT5514_DSP_MAPPING | RT5514_DELAY_BUF_CTRL3:
case RT5514_DSP_MAPPING | RT5514_DOWNFILTER0_CTRL1:
case RT5514_DSP_MAPPING | RT5514_DOWNFILTER0_CTRL2:
case RT5514_DSP_MAPPING | RT5514_DOWNFILTER0_CTRL3:
case RT5514_DSP_MAPPING | RT5514_DOWNFILTER1_CTRL1:
case RT5514_DSP_MAPPING | RT5514_DOWNFILTER1_CTRL2:
case RT5514_DSP_MAPPING | RT5514_DOWNFILTER1_CTRL3:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_LDO10:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_LDO18_16:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_ADC12:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_ADC21:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_ADC22:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_ADC23:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_MICBST:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_ADCFED:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_INBUF:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_VREF:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_PLL3:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_PLL1_1:
case RT5514_DSP_MAPPING | RT5514_ANA_CTRL_PLL1_2:
case RT5514_DSP_MAPPING | RT5514_DMIC_LP_CTRL:
case RT5514_DSP_MAPPING | RT5514_MISC_CTRL_DSP:
case RT5514_DSP_MAPPING | RT5514_DSP_CTRL1:
case RT5514_DSP_MAPPING | RT5514_DSP_CTRL3:
case RT5514_DSP_MAPPING | RT5514_DSP_CTRL4:
case RT5514_DSP_MAPPING | RT5514_VENDOR_ID1:
case RT5514_DSP_MAPPING | RT5514_VENDOR_ID2:
return true;
default:
return false;
}
}
/* {-3, 0, +3, +4.5, +7.5, +9.5, +12, +14, +17} dB */
static const DECLARE_TLV_DB_RANGE(bst_tlv,
0, 2, TLV_DB_SCALE_ITEM(-300, 300, 0),
3, 3, TLV_DB_SCALE_ITEM(450, 0, 0),
4, 4, TLV_DB_SCALE_ITEM(750, 0, 0),
5, 5, TLV_DB_SCALE_ITEM(950, 0, 0),
6, 6, TLV_DB_SCALE_ITEM(1200, 0, 0),
7, 7, TLV_DB_SCALE_ITEM(1400, 0, 0),
8, 8, TLV_DB_SCALE_ITEM(1700, 0, 0)
);
static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -1725, 75, 0);
static int rt5514_dsp_voice_wake_up_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
ucontrol->value.integer.value[0] = rt5514->dsp_enabled;
return 0;
}
static int rt5514_dsp_voice_wake_up_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
struct snd_soc_codec *codec = rt5514->codec;
const struct firmware *fw = NULL;
if (ucontrol->value.integer.value[0] == rt5514->dsp_enabled)
return 0;
if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
rt5514->dsp_enabled = ucontrol->value.integer.value[0];
if (rt5514->dsp_enabled) {
rt5514_enable_dsp_prepare(rt5514);
request_firmware(&fw, RT5514_FIRMWARE1, codec->dev);
if (fw) {
#if defined(CONFIG_SND_SOC_RT5514_SPI)
rt5514_spi_burst_write(0x4ff60000, fw->data,
((fw->size/8)+1)*8);
#else
dev_err(codec->dev, "There is no SPI driver for"
" loading the firmware\n");
#endif
release_firmware(fw);
fw = NULL;
}
request_firmware(&fw, RT5514_FIRMWARE2, codec->dev);
if (fw) {
#if defined(CONFIG_SND_SOC_RT5514_SPI)
rt5514_spi_burst_write(0x4ffc0000, fw->data,
((fw->size/8)+1)*8);
#else
dev_err(codec->dev, "There is no SPI driver for"
" loading the firmware\n");
#endif
release_firmware(fw);
fw = NULL;
}
/* DSP run */
regmap_write(rt5514->i2c_regmap, 0x18002f00,
0x00055148);
} else {
regmap_multi_reg_write(rt5514->i2c_regmap,
rt5514_i2c_patch, ARRAY_SIZE(rt5514_i2c_patch));
regcache_mark_dirty(rt5514->regmap);
regcache_sync(rt5514->regmap);
}
}
return 0;
}
static const struct snd_kcontrol_new rt5514_snd_controls[] = {
SOC_DOUBLE_TLV("MIC Boost Volume", RT5514_ANA_CTRL_MICBST,
RT5514_SEL_BSTL_SFT, RT5514_SEL_BSTR_SFT, 8, 0, bst_tlv),
SOC_DOUBLE_R_TLV("ADC1 Capture Volume", RT5514_DOWNFILTER0_CTRL1,
RT5514_DOWNFILTER0_CTRL2, RT5514_AD_GAIN_SFT, 63, 0,
adc_vol_tlv),
SOC_DOUBLE_R_TLV("ADC2 Capture Volume", RT5514_DOWNFILTER1_CTRL1,
RT5514_DOWNFILTER1_CTRL2, RT5514_AD_GAIN_SFT, 63, 0,
adc_vol_tlv),
SOC_SINGLE_EXT("DSP Voice Wake Up", SND_SOC_NOPM, 0, 1, 0,
rt5514_dsp_voice_wake_up_get, rt5514_dsp_voice_wake_up_put),
};
/* ADC Mixer*/
static const struct snd_kcontrol_new rt5514_sto1_adc_l_mix[] = {
SOC_DAPM_SINGLE("DMIC Switch", RT5514_DOWNFILTER0_CTRL1,
RT5514_AD_DMIC_MIX_BIT, 1, 1),
SOC_DAPM_SINGLE("ADC Switch", RT5514_DOWNFILTER0_CTRL1,
RT5514_AD_AD_MIX_BIT, 1, 1),
};
static const struct snd_kcontrol_new rt5514_sto1_adc_r_mix[] = {
SOC_DAPM_SINGLE("DMIC Switch", RT5514_DOWNFILTER0_CTRL2,
RT5514_AD_DMIC_MIX_BIT, 1, 1),
SOC_DAPM_SINGLE("ADC Switch", RT5514_DOWNFILTER0_CTRL2,
RT5514_AD_AD_MIX_BIT, 1, 1),
};
static const struct snd_kcontrol_new rt5514_sto2_adc_l_mix[] = {
SOC_DAPM_SINGLE("DMIC Switch", RT5514_DOWNFILTER1_CTRL1,
RT5514_AD_DMIC_MIX_BIT, 1, 1),
SOC_DAPM_SINGLE("ADC Switch", RT5514_DOWNFILTER1_CTRL1,
RT5514_AD_AD_MIX_BIT, 1, 1),
};
static const struct snd_kcontrol_new rt5514_sto2_adc_r_mix[] = {
SOC_DAPM_SINGLE("DMIC Switch", RT5514_DOWNFILTER1_CTRL2,
RT5514_AD_DMIC_MIX_BIT, 1, 1),
SOC_DAPM_SINGLE("ADC Switch", RT5514_DOWNFILTER1_CTRL2,
RT5514_AD_AD_MIX_BIT, 1, 1),
};
/* DMIC Source */
static const char * const rt5514_dmic_src[] = {
"DMIC1", "DMIC2"
};
static const SOC_ENUM_SINGLE_DECL(
rt5514_stereo1_dmic_enum, RT5514_DIG_SOURCE_CTRL,
RT5514_AD0_DMIC_INPUT_SEL_SFT, rt5514_dmic_src);
static const struct snd_kcontrol_new rt5514_sto1_dmic_mux =
SOC_DAPM_ENUM("Stereo1 DMIC Source", rt5514_stereo1_dmic_enum);
static const SOC_ENUM_SINGLE_DECL(
rt5514_stereo2_dmic_enum, RT5514_DIG_SOURCE_CTRL,
RT5514_AD1_DMIC_INPUT_SEL_SFT, rt5514_dmic_src);
static const struct snd_kcontrol_new rt5514_sto2_dmic_mux =
SOC_DAPM_ENUM("Stereo2 DMIC Source", rt5514_stereo2_dmic_enum);
/**
* rt5514_calc_dmic_clk - Calculate the frequency divider parameter of dmic.
*
* @rate: base clock rate.
*
* Choose divider parameter that gives the highest possible DMIC frequency in
* 1MHz - 3MHz range.
*/
static int rt5514_calc_dmic_clk(struct snd_soc_codec *codec, int rate)
{
int div[] = {2, 3, 4, 8, 12, 16, 24, 32};
int i;
if (rate < 1000000 * div[0]) {
pr_warn("Base clock rate %d is too low\n", rate);
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(div); i++) {
/* find divider that gives DMIC frequency below 3.072MHz */
if (3072000 * div[i] >= rate)
return i;
}
dev_warn(codec->dev, "Base clock rate %d is too high\n", rate);
return -EINVAL;
}
static int rt5514_set_dmic_clk(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
int idx;
idx = rt5514_calc_dmic_clk(codec, rt5514->sysclk);
if (idx < 0)
dev_err(codec->dev, "Failed to set DMIC clock\n");
else
regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL1,
RT5514_CLK_DMIC_OUT_SEL_MASK,
idx << RT5514_CLK_DMIC_OUT_SEL_SFT);
if (rt5514->pdata.dmic_init_delay)
msleep(rt5514->pdata.dmic_init_delay);
return idx;
}
static int rt5514_is_sys_clk_from_pll(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(source->dapm);
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
if (rt5514->sysclk_src == RT5514_SCLK_S_PLL1)
return 1;
else
return 0;
}
static int rt5514_pre_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/**
* If the DSP is enabled in start of recording, the DSP
* should be disabled, and sync back to normal recording
* settings to make sure recording properly.
*/
if (rt5514->dsp_enabled) {
rt5514->dsp_enabled = 0;
regmap_multi_reg_write(rt5514->i2c_regmap,
rt5514_i2c_patch, ARRAY_SIZE(rt5514_i2c_patch));
regcache_mark_dirty(rt5514->regmap);
regcache_sync(rt5514->regmap);
}
break;
default:
return 0;
}
return 0;
}
static const struct snd_soc_dapm_widget rt5514_dapm_widgets[] = {
/* Input Lines */
SND_SOC_DAPM_INPUT("DMIC1L"),
SND_SOC_DAPM_INPUT("DMIC1R"),
SND_SOC_DAPM_INPUT("DMIC2L"),
SND_SOC_DAPM_INPUT("DMIC2R"),
SND_SOC_DAPM_INPUT("AMICL"),
SND_SOC_DAPM_INPUT("AMICR"),
SND_SOC_DAPM_PGA("DMIC1", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("DMIC2", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("DMIC CLK", SND_SOC_NOPM, 0, 0,
rt5514_set_dmic_clk, SND_SOC_DAPM_PRE_PMU),
SND_SOC_DAPM_SUPPLY("ADC CLK", RT5514_CLK_CTRL1,
RT5514_CLK_AD_ANA1_EN_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("LDO18 IN", RT5514_PWR_ANA1,
RT5514_POW_LDO18_IN_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("LDO18 ADC", RT5514_PWR_ANA1,
RT5514_POW_LDO18_ADC_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("LDO21", RT5514_PWR_ANA1, RT5514_POW_LDO21_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("BG LDO18 IN", RT5514_PWR_ANA1,
RT5514_POW_BG_LDO18_IN_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("BG LDO21", RT5514_PWR_ANA1,
RT5514_POW_BG_LDO21_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("BG MBIAS", RT5514_PWR_ANA2,
RT5514_POW_BG_MBIAS_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("MBIAS", RT5514_PWR_ANA2, RT5514_POW_MBIAS_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("VREF2", RT5514_PWR_ANA2, RT5514_POW_VREF2_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("VREF1", RT5514_PWR_ANA2, RT5514_POW_VREF1_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("ADC Power", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("LDO16L", RT5514_PWR_ANA2, RT5514_POWL_LDO16_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("ADC1L", RT5514_PWR_ANA2, RT5514_POW_ADC1_L_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("BSTL2", RT5514_PWR_ANA2, RT5514_POW2_BSTL_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("BSTL", RT5514_PWR_ANA2, RT5514_POW_BSTL_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("ADCFEDL", RT5514_PWR_ANA2, RT5514_POW_ADCFEDL_BIT,
0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ADCL Power", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("LDO16R", RT5514_PWR_ANA2, RT5514_POWR_LDO16_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("ADC1R", RT5514_PWR_ANA2, RT5514_POW_ADC1_R_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("BSTR2", RT5514_PWR_ANA2, RT5514_POW2_BSTR_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("BSTR", RT5514_PWR_ANA2, RT5514_POW_BSTR_BIT, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("ADCFEDR", RT5514_PWR_ANA2, RT5514_POW_ADCFEDR_BIT,
0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ADCR Power", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLL1 LDO ENABLE", RT5514_ANA_CTRL_PLL1_2,
RT5514_EN_LDO_PLL1_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLL1 LDO", RT5514_PWR_ANA2,
RT5514_POW_PLL1_LDO_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLL1", RT5514_PWR_ANA2, RT5514_POW_PLL1_BIT, 0,
NULL, 0),
/* ADC Mux */
SND_SOC_DAPM_MUX("Stereo1 DMIC Mux", SND_SOC_NOPM, 0, 0,
&rt5514_sto1_dmic_mux),
SND_SOC_DAPM_MUX("Stereo2 DMIC Mux", SND_SOC_NOPM, 0, 0,
&rt5514_sto2_dmic_mux),
/* ADC Mixer */
SND_SOC_DAPM_SUPPLY("adc stereo1 filter", RT5514_CLK_CTRL1,
RT5514_CLK_AD0_EN_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("adc stereo2 filter", RT5514_CLK_CTRL1,
RT5514_CLK_AD1_EN_BIT, 0, NULL, 0),
SND_SOC_DAPM_MIXER("Sto1 ADC MIXL", SND_SOC_NOPM, 0, 0,
rt5514_sto1_adc_l_mix, ARRAY_SIZE(rt5514_sto1_adc_l_mix)),
SND_SOC_DAPM_MIXER("Sto1 ADC MIXR", SND_SOC_NOPM, 0, 0,
rt5514_sto1_adc_r_mix, ARRAY_SIZE(rt5514_sto1_adc_r_mix)),
SND_SOC_DAPM_MIXER("Sto2 ADC MIXL", SND_SOC_NOPM, 0, 0,
rt5514_sto2_adc_l_mix, ARRAY_SIZE(rt5514_sto2_adc_l_mix)),
SND_SOC_DAPM_MIXER("Sto2 ADC MIXR", SND_SOC_NOPM, 0, 0,
rt5514_sto2_adc_r_mix, ARRAY_SIZE(rt5514_sto2_adc_r_mix)),
SND_SOC_DAPM_ADC("Stereo1 ADC MIXL", NULL, RT5514_DOWNFILTER0_CTRL1,
RT5514_AD_AD_MUTE_BIT, 1),
SND_SOC_DAPM_ADC("Stereo1 ADC MIXR", NULL, RT5514_DOWNFILTER0_CTRL2,
RT5514_AD_AD_MUTE_BIT, 1),
SND_SOC_DAPM_ADC("Stereo2 ADC MIXL", NULL, RT5514_DOWNFILTER1_CTRL1,
RT5514_AD_AD_MUTE_BIT, 1),
SND_SOC_DAPM_ADC("Stereo2 ADC MIXR", NULL, RT5514_DOWNFILTER1_CTRL2,
RT5514_AD_AD_MUTE_BIT, 1),
/* ADC PGA */
SND_SOC_DAPM_PGA("Stereo1 ADC MIX", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Stereo2 ADC MIX", SND_SOC_NOPM, 0, 0, NULL, 0),
/* Audio Interface */
SND_SOC_DAPM_AIF_OUT("AIF1TX", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_PRE("DAPM Pre", rt5514_pre_event),
};
static const struct snd_soc_dapm_route rt5514_dapm_routes[] = {
{ "DMIC1", NULL, "DMIC1L" },
{ "DMIC1", NULL, "DMIC1R" },
{ "DMIC2", NULL, "DMIC2L" },
{ "DMIC2", NULL, "DMIC2R" },
{ "DMIC1L", NULL, "DMIC CLK" },
{ "DMIC1R", NULL, "DMIC CLK" },
{ "DMIC2L", NULL, "DMIC CLK" },
{ "DMIC2R", NULL, "DMIC CLK" },
{ "Stereo1 DMIC Mux", "DMIC1", "DMIC1" },
{ "Stereo1 DMIC Mux", "DMIC2", "DMIC2" },
{ "Sto1 ADC MIXL", "DMIC Switch", "Stereo1 DMIC Mux" },
{ "Sto1 ADC MIXL", "ADC Switch", "AMICL" },
{ "Sto1 ADC MIXR", "DMIC Switch", "Stereo1 DMIC Mux" },
{ "Sto1 ADC MIXR", "ADC Switch", "AMICR" },
{ "ADC Power", NULL, "LDO18 IN" },
{ "ADC Power", NULL, "LDO18 ADC" },
{ "ADC Power", NULL, "LDO21" },
{ "ADC Power", NULL, "BG LDO18 IN" },
{ "ADC Power", NULL, "BG LDO21" },
{ "ADC Power", NULL, "BG MBIAS" },
{ "ADC Power", NULL, "MBIAS" },
{ "ADC Power", NULL, "VREF2" },
{ "ADC Power", NULL, "VREF1" },
{ "ADCL Power", NULL, "LDO16L" },
{ "ADCL Power", NULL, "ADC1L" },
{ "ADCL Power", NULL, "BSTL2" },
{ "ADCL Power", NULL, "BSTL" },
{ "ADCL Power", NULL, "ADCFEDL" },
{ "ADCR Power", NULL, "LDO16R" },
{ "ADCR Power", NULL, "ADC1R" },
{ "ADCR Power", NULL, "BSTR2" },
{ "ADCR Power", NULL, "BSTR" },
{ "ADCR Power", NULL, "ADCFEDR" },
{ "AMICL", NULL, "ADC CLK" },
{ "AMICL", NULL, "ADC Power" },
{ "AMICL", NULL, "ADCL Power" },
{ "AMICR", NULL, "ADC CLK" },
{ "AMICR", NULL, "ADC Power" },
{ "AMICR", NULL, "ADCR Power" },
{ "PLL1 LDO", NULL, "PLL1 LDO ENABLE" },
{ "PLL1", NULL, "PLL1 LDO" },
{ "Stereo1 ADC MIXL", NULL, "Sto1 ADC MIXL" },
{ "Stereo1 ADC MIXR", NULL, "Sto1 ADC MIXR" },
{ "Stereo1 ADC MIX", NULL, "Stereo1 ADC MIXL" },
{ "Stereo1 ADC MIX", NULL, "Stereo1 ADC MIXR" },
{ "Stereo1 ADC MIX", NULL, "adc stereo1 filter" },
{ "adc stereo1 filter", NULL, "PLL1", rt5514_is_sys_clk_from_pll },
{ "Stereo2 DMIC Mux", "DMIC1", "DMIC1" },
{ "Stereo2 DMIC Mux", "DMIC2", "DMIC2" },
{ "Sto2 ADC MIXL", "DMIC Switch", "Stereo2 DMIC Mux" },
{ "Sto2 ADC MIXL", "ADC Switch", "AMICL" },
{ "Sto2 ADC MIXR", "DMIC Switch", "Stereo2 DMIC Mux" },
{ "Sto2 ADC MIXR", "ADC Switch", "AMICR" },
{ "Stereo2 ADC MIXL", NULL, "Sto2 ADC MIXL" },
{ "Stereo2 ADC MIXR", NULL, "Sto2 ADC MIXR" },
{ "Stereo2 ADC MIX", NULL, "Stereo2 ADC MIXL" },
{ "Stereo2 ADC MIX", NULL, "Stereo2 ADC MIXR" },
{ "Stereo2 ADC MIX", NULL, "adc stereo2 filter" },
{ "adc stereo2 filter", NULL, "PLL1", rt5514_is_sys_clk_from_pll },
{ "AIF1TX", NULL, "Stereo1 ADC MIX"},
{ "AIF1TX", NULL, "Stereo2 ADC MIX"},
};
static int rt5514_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;
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
int pre_div, bclk_ms, frame_size;
unsigned int val_len = 0;
rt5514->lrck = params_rate(params);
pre_div = rl6231_get_clk_info(rt5514->sysclk, rt5514->lrck);
if (pre_div < 0) {
dev_err(codec->dev, "Unsupported clock setting\n");
return -EINVAL;
}
frame_size = snd_soc_params_to_frame_size(params);
if (frame_size < 0) {
dev_err(codec->dev, "Unsupported frame size: %d\n", frame_size);
return -EINVAL;
}
bclk_ms = frame_size > 32;
rt5514->bclk = rt5514->lrck * (32 << bclk_ms);
dev_dbg(dai->dev, "bclk is %dHz and lrck is %dHz\n",
rt5514->bclk, rt5514->lrck);
dev_dbg(dai->dev, "bclk_ms is %d and pre_div is %d for iis %d\n",
bclk_ms, pre_div, dai->id);
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
break;
case SNDRV_PCM_FORMAT_S20_3LE:
val_len = RT5514_I2S_DL_20;
break;
case SNDRV_PCM_FORMAT_S24_LE:
val_len = RT5514_I2S_DL_24;
break;
case SNDRV_PCM_FORMAT_S8:
val_len = RT5514_I2S_DL_8;
break;
default:
return -EINVAL;
}
regmap_update_bits(rt5514->regmap, RT5514_I2S_CTRL1, RT5514_I2S_DL_MASK,
val_len);
regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL2,
RT5514_CLK_SYS_DIV_OUT_MASK | RT5514_SEL_ADC_OSR_MASK,
pre_div << RT5514_CLK_SYS_DIV_OUT_SFT |
pre_div << RT5514_SEL_ADC_OSR_SFT);
return 0;
}
static int rt5514_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_codec *codec = dai->codec;
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
unsigned int reg_val = 0;
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_NB_IF:
reg_val |= RT5514_I2S_LR_INV;
break;
case SND_SOC_DAIFMT_IB_NF:
reg_val |= RT5514_I2S_BP_INV;
break;
case SND_SOC_DAIFMT_IB_IF:
reg_val |= RT5514_I2S_BP_INV | RT5514_I2S_LR_INV;
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
break;
case SND_SOC_DAIFMT_LEFT_J:
reg_val |= RT5514_I2S_DF_LEFT;
break;
case SND_SOC_DAIFMT_DSP_A:
reg_val |= RT5514_I2S_DF_PCM_A;
break;
case SND_SOC_DAIFMT_DSP_B:
reg_val |= RT5514_I2S_DF_PCM_B;
break;
default:
return -EINVAL;
}
regmap_update_bits(rt5514->regmap, RT5514_I2S_CTRL1,
RT5514_I2S_DF_MASK | RT5514_I2S_BP_MASK | RT5514_I2S_LR_MASK,
reg_val);
return 0;
}
static int rt5514_set_dai_sysclk(struct snd_soc_dai *dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = dai->codec;
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
unsigned int reg_val = 0;
if (freq == rt5514->sysclk && clk_id == rt5514->sysclk_src)
return 0;
switch (clk_id) {
case RT5514_SCLK_S_MCLK:
reg_val |= RT5514_CLK_SYS_PRE_SEL_MCLK;
break;
case RT5514_SCLK_S_PLL1:
reg_val |= RT5514_CLK_SYS_PRE_SEL_PLL;
break;
default:
dev_err(codec->dev, "Invalid clock id (%d)\n", clk_id);
return -EINVAL;
}
regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL2,
RT5514_CLK_SYS_PRE_SEL_MASK, reg_val);
rt5514->sysclk = freq;
rt5514->sysclk_src = clk_id;
dev_dbg(dai->dev, "Sysclk is %dHz and clock id is %d\n", freq, clk_id);
return 0;
}
static int rt5514_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source,
unsigned int freq_in, unsigned int freq_out)
{
struct snd_soc_codec *codec = dai->codec;
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
struct rl6231_pll_code pll_code;
int ret;
if (!freq_in || !freq_out) {
dev_dbg(codec->dev, "PLL disabled\n");
rt5514->pll_in = 0;
rt5514->pll_out = 0;
regmap_update_bits(rt5514->regmap, RT5514_CLK_CTRL2,
RT5514_CLK_SYS_PRE_SEL_MASK,
RT5514_CLK_SYS_PRE_SEL_MCLK);
return 0;
}
if (source == rt5514->pll_src && freq_in == rt5514->pll_in &&
freq_out == rt5514->pll_out)
return 0;
switch (source) {
case RT5514_PLL1_S_MCLK:
regmap_update_bits(rt5514->regmap, RT5514_PLL_SOURCE_CTRL,
RT5514_PLL_1_SEL_MASK, RT5514_PLL_1_SEL_MCLK);
break;
case RT5514_PLL1_S_BCLK:
regmap_update_bits(rt5514->regmap, RT5514_PLL_SOURCE_CTRL,
RT5514_PLL_1_SEL_MASK, RT5514_PLL_1_SEL_SCLK);
break;
default:
dev_err(codec->dev, "Unknown PLL source %d\n", source);
return -EINVAL;
}
ret = rl6231_pll_calc(freq_in, freq_out, &pll_code);
if (ret < 0) {
dev_err(codec->dev, "Unsupport input clock %d\n", freq_in);
return ret;
}
dev_dbg(codec->dev, "bypass=%d m=%d n=%d k=%d\n",
pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code),
pll_code.n_code, pll_code.k_code);
regmap_write(rt5514->regmap, RT5514_ANA_CTRL_PLL1_1,
pll_code.k_code << RT5514_PLL_K_SFT |
pll_code.n_code << RT5514_PLL_N_SFT |
(pll_code.m_bp ? 0 : pll_code.m_code) << RT5514_PLL_M_SFT);
regmap_update_bits(rt5514->regmap, RT5514_ANA_CTRL_PLL1_2,
RT5514_PLL_M_BP, pll_code.m_bp << RT5514_PLL_M_BP_SFT);
rt5514->pll_in = freq_in;
rt5514->pll_out = freq_out;
rt5514->pll_src = source;
return 0;
}
static int rt5514_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
unsigned int rx_mask, int slots, int slot_width)
{
struct snd_soc_codec *codec = dai->codec;
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
unsigned int val = 0;
if (rx_mask || tx_mask)
val |= RT5514_TDM_MODE;
if (slots == 4)
val |= RT5514_TDMSLOT_SEL_RX_4CH | RT5514_TDMSLOT_SEL_TX_4CH;
switch (slot_width) {
case 20:
val |= RT5514_CH_LEN_RX_20 | RT5514_CH_LEN_TX_20;
break;
case 24:
val |= RT5514_CH_LEN_RX_24 | RT5514_CH_LEN_TX_24;
break;
case 32:
val |= RT5514_CH_LEN_RX_32 | RT5514_CH_LEN_TX_32;
break;
case 16:
default:
break;
}
regmap_update_bits(rt5514->regmap, RT5514_I2S_CTRL1, RT5514_TDM_MODE |
RT5514_TDMSLOT_SEL_RX_MASK | RT5514_TDMSLOT_SEL_TX_MASK |
RT5514_CH_LEN_RX_MASK | RT5514_CH_LEN_TX_MASK, val);
return 0;
}
static int rt5514_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
int ret;
switch (level) {
case SND_SOC_BIAS_PREPARE:
if (IS_ERR(rt5514->mclk))
break;
if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_ON) {
clk_disable_unprepare(rt5514->mclk);
} else {
ret = clk_prepare_enable(rt5514->mclk);
if (ret)
return ret;
}
break;
default:
break;
}
return 0;
}
static int rt5514_probe(struct snd_soc_codec *codec)
{
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
rt5514->mclk = devm_clk_get(codec->dev, "mclk");
if (PTR_ERR(rt5514->mclk) == -EPROBE_DEFER)
return -EPROBE_DEFER;
rt5514->codec = codec;
return 0;
}
static int rt5514_i2c_read(void *context, unsigned int reg, unsigned int *val)
{
struct i2c_client *client = context;
struct rt5514_priv *rt5514 = i2c_get_clientdata(client);
regmap_read(rt5514->i2c_regmap, reg | RT5514_DSP_MAPPING, val);
return 0;
}
static int rt5514_i2c_write(void *context, unsigned int reg, unsigned int val)
{
struct i2c_client *client = context;
struct rt5514_priv *rt5514 = i2c_get_clientdata(client);
regmap_write(rt5514->i2c_regmap, reg | RT5514_DSP_MAPPING, val);
return 0;
}
#define RT5514_STEREO_RATES SNDRV_PCM_RATE_8000_192000
#define RT5514_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)
struct snd_soc_dai_ops rt5514_aif_dai_ops = {
.hw_params = rt5514_hw_params,
.set_fmt = rt5514_set_dai_fmt,
.set_sysclk = rt5514_set_dai_sysclk,
.set_pll = rt5514_set_dai_pll,
.set_tdm_slot = rt5514_set_tdm_slot,
};
struct snd_soc_dai_driver rt5514_dai[] = {
{
.name = "rt5514-aif1",
.id = 0,
.capture = {
.stream_name = "AIF1 Capture",
.channels_min = 1,
.channels_max = 4,
.rates = RT5514_STEREO_RATES,
.formats = RT5514_FORMATS,
},
.ops = &rt5514_aif_dai_ops,
}
};
static struct snd_soc_codec_driver soc_codec_dev_rt5514 = {
.probe = rt5514_probe,
.idle_bias_off = true,
.set_bias_level = rt5514_set_bias_level,
.component_driver = {
.controls = rt5514_snd_controls,
.num_controls = ARRAY_SIZE(rt5514_snd_controls),
.dapm_widgets = rt5514_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(rt5514_dapm_widgets),
.dapm_routes = rt5514_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(rt5514_dapm_routes),
},
};
static const struct regmap_config rt5514_i2c_regmap = {
.name = "i2c",
.reg_bits = 32,
.val_bits = 32,
.readable_reg = rt5514_i2c_readable_register,
.cache_type = REGCACHE_NONE,
};
static const struct regmap_config rt5514_regmap = {
.reg_bits = 16,
.val_bits = 32,
.max_register = RT5514_VENDOR_ID2,
.volatile_reg = rt5514_volatile_register,
.readable_reg = rt5514_readable_register,
.reg_read = rt5514_i2c_read,
.reg_write = rt5514_i2c_write,
.cache_type = REGCACHE_RBTREE,
.reg_defaults = rt5514_reg,
.num_reg_defaults = ARRAY_SIZE(rt5514_reg),
.use_single_rw = true,
};
static const struct i2c_device_id rt5514_i2c_id[] = {
{ "rt5514", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, rt5514_i2c_id);
#if defined(CONFIG_OF)
static const struct of_device_id rt5514_of_match[] = {
{ .compatible = "realtek,rt5514", },
{},
};
MODULE_DEVICE_TABLE(of, rt5514_of_match);
#endif
static int rt5514_parse_dt(struct rt5514_priv *rt5514, struct device *dev)
{
device_property_read_u32(dev, "realtek,dmic-init-delay-ms",
&rt5514->pdata.dmic_init_delay);
return 0;
}
static __maybe_unused int rt5514_i2c_resume(struct device *dev)
{
struct rt5514_priv *rt5514 = dev_get_drvdata(dev);
unsigned int val;
/*
* Add a bogus read to avoid rt5514's confusion after s2r in case it
* saw glitches on the i2c lines and thought the other side sent a
* start bit.
*/
regmap_read(rt5514->regmap, RT5514_VENDOR_ID2, &val);
return 0;
}
static int rt5514_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct rt5514_platform_data *pdata = dev_get_platdata(&i2c->dev);
struct rt5514_priv *rt5514;
int ret;
unsigned int val = ~0;
rt5514 = devm_kzalloc(&i2c->dev, sizeof(struct rt5514_priv),
GFP_KERNEL);
if (rt5514 == NULL)
return -ENOMEM;
i2c_set_clientdata(i2c, rt5514);
if (pdata)
rt5514->pdata = *pdata;
else if (i2c->dev.of_node)
rt5514_parse_dt(rt5514, &i2c->dev);
rt5514->i2c_regmap = devm_regmap_init_i2c(i2c, &rt5514_i2c_regmap);
if (IS_ERR(rt5514->i2c_regmap)) {
ret = PTR_ERR(rt5514->i2c_regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
ret);
return ret;
}
rt5514->regmap = devm_regmap_init(&i2c->dev, NULL, i2c, &rt5514_regmap);
if (IS_ERR(rt5514->regmap)) {
ret = PTR_ERR(rt5514->regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
ret);
return ret;
}
/*
* The rt5514 can get confused if the i2c lines glitch together, as
* can happen at bootup as regulators are turned off and on. If it's
* in this glitched state the first i2c read will fail, so we'll give
* it one change to retry.
*/
ret = regmap_read(rt5514->regmap, RT5514_VENDOR_ID2, &val);
if (ret || val != RT5514_DEVICE_ID)
ret = regmap_read(rt5514->regmap, RT5514_VENDOR_ID2, &val);
if (ret || val != RT5514_DEVICE_ID) {
dev_err(&i2c->dev,
"Device with ID register %x is not rt5514\n", val);
return -ENODEV;
}
ret = regmap_multi_reg_write(rt5514->i2c_regmap, rt5514_i2c_patch,
ARRAY_SIZE(rt5514_i2c_patch));
if (ret != 0)
dev_warn(&i2c->dev, "Failed to apply i2c_regmap patch: %d\n",
ret);
ret = regmap_register_patch(rt5514->regmap, rt5514_patch,
ARRAY_SIZE(rt5514_patch));
if (ret != 0)
dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);
return snd_soc_register_codec(&i2c->dev, &soc_codec_dev_rt5514,
rt5514_dai, ARRAY_SIZE(rt5514_dai));
}
static int rt5514_i2c_remove(struct i2c_client *i2c)
{
snd_soc_unregister_codec(&i2c->dev);
return 0;
}
static const struct dev_pm_ops rt5514_i2_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(NULL, rt5514_i2c_resume)
};
static struct i2c_driver rt5514_i2c_driver = {
.driver = {
.name = "rt5514",
.of_match_table = of_match_ptr(rt5514_of_match),
.pm = &rt5514_i2_pm_ops,
},
.probe = rt5514_i2c_probe,
.remove = rt5514_i2c_remove,
.id_table = rt5514_i2c_id,
};
module_i2c_driver(rt5514_i2c_driver);
MODULE_DESCRIPTION("ASoC RT5514 driver");
MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>");
MODULE_LICENSE("GPL v2");
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