new file mode 100644
@@ -0,0 +1,18 @@
+Nuvoton NAU8825 audio codec
+
+This device supports I2C only.
+
+Required properties:
+ - compatible : Must be "nuvoton,nau8825"
+ - reg : the I2C address of the device. This is either 0x1a (CSB=0) or 0x1b (CSB=1).
+
+Optional properties:
+ - nuvoton,jkdet-pullup: Pull-up JKDET pin. Boolean.
+
+Example:
+
+ codec: nau8825@1a {
+ compatible = "nuvoton,nau8825";
+ reg = <0x1a>;
+ nuvoton,jkdet-pullup = "true";
+ };
@@ -78,6 +78,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_MAX9877 if I2C
select SND_SOC_MC13783 if MFD_MC13XXX
select SND_SOC_ML26124 if I2C
+ select SND_SOC_NAU8825 if I2C
select SND_SOC_HDMI_CODEC
select SND_SOC_PCM1681 if I2C
select SND_SOC_PCM1792A if SPI_MASTER
@@ -892,6 +893,9 @@ config SND_SOC_MC13783
config SND_SOC_ML26124
tristate
+config SND_SOC_NAU8825
+ tristate
+
config SND_SOC_TPA6130A2
tristate "Texas Instruments TPA6130A2 headphone amplifier"
depends on I2C
@@ -71,6 +71,7 @@ snd-soc-max98925-objs := max98925.o
snd-soc-max9850-objs := max9850.o
snd-soc-mc13783-objs := mc13783.o
snd-soc-ml26124-objs := ml26124.o
+snd-soc-nau8825-objs := nau8825.o
snd-soc-hdmi-codec-objs := hdmi.o
snd-soc-pcm1681-objs := pcm1681.o
snd-soc-pcm1792a-codec-objs := pcm1792a.o
@@ -262,6 +263,7 @@ obj-$(CONFIG_SND_SOC_MAX98925) += snd-soc-max98925.o
obj-$(CONFIG_SND_SOC_MAX9850) += snd-soc-max9850.o
obj-$(CONFIG_SND_SOC_MC13783) += snd-soc-mc13783.o
obj-$(CONFIG_SND_SOC_ML26124) += snd-soc-ml26124.o
+obj-$(CONFIG_SND_SOC_NAU8825) += snd-soc-nau8825.o
obj-$(CONFIG_SND_SOC_HDMI_CODEC) += snd-soc-hdmi-codec.o
obj-$(CONFIG_SND_SOC_PCM1681) += snd-soc-pcm1681.o
obj-$(CONFIG_SND_SOC_PCM1792A) += snd-soc-pcm1792a-codec.o
new file mode 100644
@@ -0,0 +1,874 @@
+/*
+ * NAU8825 audio codec driver
+ *
+ * Copyright 2015 Nuvoton Technology Corp.
+ * Copyright 2015 Google Chromium project.
+ * Author: Anatol Pomozov <anatol@chromium.org>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+#include <linux/input.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "nau8825.h"
+
+struct nau8825 {
+ struct device *dev;
+ struct regmap *regmap;
+ struct snd_soc_dapm_context *dapm;
+ int irq;
+ struct snd_soc_jack *jack;
+ int button_pressed;
+ bool jkdet_pullup;
+};
+
+static const struct reg_default nau8825_reg_defaults[] = {
+ { NAU8825_REG_ENA_CTRL, 0x00ff },
+ { NAU8825_REG_CLK_DIVIDER, 0x0050 },
+ { NAU8825_REG_FLL1, 0x0 },
+ { NAU8825_REG_FLL2, 0x3126 },
+ { NAU8825_REG_FLL3, 0x0008 },
+ { NAU8825_REG_FLL4, 0x0010 },
+ { NAU8825_REG_FLL5, 0x0 },
+ { NAU8825_REG_FLL6, 0x6000 },
+ { NAU8825_REG_FLL_VCO_RSV, 0xf13c },
+ { NAU8825_REG_HSD_CTRL, 0x000c },
+ { NAU8825_REG_JACK_DET_CTRL, 0x0 },
+ { NAU8825_REG_INTERRUPT_MASK, 0x0 },
+ { NAU8825_REG_INTERRUPT_DIS_CTRL, 0xffff },
+ { NAU8825_REG_SAR_CTRL, 0x0015 },
+ { NAU8825_REG_KEYDET_CTRL, 0x0110 },
+ { NAU8825_REG_VDET_THRESHOLD_1, 0x0 },
+ { NAU8825_REG_VDET_THRESHOLD_2, 0x0 },
+ { NAU8825_REG_VDET_THRESHOLD_3, 0x0 },
+ { NAU8825_REG_VDET_THRESHOLD_4, 0x0 },
+ { NAU8825_REG_GPIO34_CTRL, 0x0 },
+ { NAU8825_REG_GPIO12_CTRL, 0x0 },
+ { NAU8825_REG_TDM_CTRL, 0x0 },
+ { NAU8825_REG_I2S_PCM_CTRL1, 0x000b },
+ { NAU8825_REG_I2S_PCM_CTRL2, 0x8010 },
+ { NAU8825_REG_LEFT_TIME_SLOT, 0x0 },
+ { NAU8825_REG_RIGHT_TIME_SLOT, 0x0 },
+ { NAU8825_REG_BIQ_CTRL, 0x0 },
+ { NAU8825_REG_BIQ_COF1, 0x0 },
+ { NAU8825_REG_BIQ_COF2, 0x0 },
+ { NAU8825_REG_BIQ_COF3, 0x0 },
+ { NAU8825_REG_BIQ_COF4, 0x0 },
+ { NAU8825_REG_BIQ_COF5, 0x0 },
+ { NAU8825_REG_BIQ_COF6, 0x0 },
+ { NAU8825_REG_BIQ_COF7, 0x0 },
+ { NAU8825_REG_BIQ_COF8, 0x0 },
+ { NAU8825_REG_BIQ_COF9, 0x0 },
+ { NAU8825_REG_BIQ_COF10, 0x0 },
+ { NAU8825_REG_ADC_RATE, 0x0010 },
+ { NAU8825_REG_DAC_CTRL1, 0x0001 },
+ { NAU8825_REG_DAC_CTRL2, 0x0 },
+ { NAU8825_REG_DAC_DGAIN_CTRL, 0x0 },
+ { NAU8825_REG_ADC_DGAIN_CTRL, 0x00cf },
+ { NAU8825_REG_MUTE_CTRL, 0x0 },
+ { NAU8825_REG_HSVOL_CTRL, 0x0 },
+ { NAU8825_REG_DACL_CTRL, 0x02cf },
+ { NAU8825_REG_DACR_CTRL, 0x00cf },
+ { NAU8825_REG_ADC_DRC_KNEE_IP12, 0x1486 },
+ { NAU8825_REG_ADC_DRC_KNEE_IP34, 0x0f12 },
+ { NAU8825_REG_ADC_DRC_SLOPES, 0x25ff },
+ { NAU8825_REG_ADC_DRC_ATKDCY, 0x3457 },
+ { NAU8825_REG_DAC_DRC_KNEE_IP12, 0x1486 },
+ { NAU8825_REG_DAC_DRC_KNEE_IP34, 0x0f12 },
+ { NAU8825_REG_DAC_DRC_SLOPES, 0x25f9 },
+ { NAU8825_REG_DAC_DRC_ATKDCY, 0x3457 },
+ { NAU8825_REG_IMM_MODE_CTRL, 0x0 },
+ { NAU8825_REG_CLASSG_CTRL, 0x0 },
+ { NAU8825_REG_OPT_EFUSE_CTRL, 0x0 },
+ { NAU8825_REG_MISC_CTRL, 0x0 },
+ { NAU8825_REG_BIAS_ADJ, 0x0 },
+ { NAU8825_REG_TRIM_SETTINGS, 0x0 },
+ { NAU8825_REG_ANALOG_CONTROL_1, 0x0 },
+ { NAU8825_REG_ANALOG_CONTROL_2, 0x0 },
+ { NAU8825_REG_ANALOG_ADC_1, 0x0011 },
+ { NAU8825_REG_ANALOG_ADC_2, 0x0020 },
+ { NAU8825_REG_RDAC, 0x0008 },
+ { NAU8825_REG_MIC_BIAS, 0x0006 },
+ { NAU8825_REG_BOOST, 0x0 },
+ { NAU8825_REG_FEPGA, 0x0 },
+ { NAU8825_REG_POWER_UP_CONTROL, 0x0 },
+ { NAU8825_REG_CHARGE_PUMP, 0x0 },
+};
+
+static bool nau8825_readable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case NAU8825_REG_ENA_CTRL:
+ case NAU8825_REG_CLK_DIVIDER ... NAU8825_REG_FLL_VCO_RSV:
+ case NAU8825_REG_HSD_CTRL ... NAU8825_REG_JACK_DET_CTRL:
+ case NAU8825_REG_INTERRUPT_MASK ... NAU8825_REG_KEYDET_CTRL:
+ case NAU8825_REG_VDET_THRESHOLD_1 ... NAU8825_REG_DACR_CTRL:
+ case NAU8825_REG_ADC_DRC_KNEE_IP12 ... NAU8825_REG_ADC_DRC_ATKDCY:
+ case NAU8825_REG_DAC_DRC_KNEE_IP12 ... NAU8825_REG_DAC_DRC_ATKDCY:
+ case NAU8825_REG_IMM_MODE_CTRL ... NAU8825_REG_IMM_RMS_R:
+ case NAU8825_REG_CLASSG_CTRL ... NAU8825_REG_OPT_EFUSE_CTRL:
+ case NAU8825_REG_MISC_CTRL:
+ case NAU8825_REG_I2C_DEVICE_ID ... NAU8825_REG_SARDOUT_RAM_STATUS:
+ case NAU8825_REG_BIAS_ADJ:
+ case NAU8825_REG_TRIM_SETTINGS ... NAU8825_REG_ANALOG_CONTROL_2:
+ case NAU8825_REG_ANALOG_ADC_1 ... NAU8825_REG_MIC_BIAS:
+ case NAU8825_REG_BOOST ... NAU8825_REG_FEPGA:
+ case NAU8825_REG_POWER_UP_CONTROL ... NAU8825_REG_GENERAL_STATUS:
+ return true;
+ default:
+ return false;
+ }
+
+}
+
+static bool nau8825_writeable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case NAU8825_REG_RESET ... NAU8825_REG_ENA_CTRL:
+ case NAU8825_REG_CLK_DIVIDER ... NAU8825_REG_FLL_VCO_RSV:
+ case NAU8825_REG_HSD_CTRL ... NAU8825_REG_JACK_DET_CTRL:
+ case NAU8825_REG_INTERRUPT_MASK:
+ case NAU8825_REG_INT_CLR_KEY_STATUS ... NAU8825_REG_KEYDET_CTRL:
+ case NAU8825_REG_VDET_THRESHOLD_1 ... NAU8825_REG_DACR_CTRL:
+ case NAU8825_REG_ADC_DRC_KNEE_IP12 ... NAU8825_REG_ADC_DRC_ATKDCY:
+ case NAU8825_REG_DAC_DRC_KNEE_IP12 ... NAU8825_REG_DAC_DRC_ATKDCY:
+ case NAU8825_REG_IMM_MODE_CTRL:
+ case NAU8825_REG_CLASSG_CTRL ... NAU8825_REG_OPT_EFUSE_CTRL:
+ case NAU8825_REG_MISC_CTRL:
+ case NAU8825_REG_BIAS_ADJ:
+ case NAU8825_REG_TRIM_SETTINGS ... NAU8825_REG_ANALOG_CONTROL_2:
+ case NAU8825_REG_ANALOG_ADC_1 ... NAU8825_REG_MIC_BIAS:
+ case NAU8825_REG_BOOST ... NAU8825_REG_FEPGA:
+ case NAU8825_REG_POWER_UP_CONTROL ... NAU8825_REG_CHARGE_PUMP:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool nau8825_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case NAU8825_REG_RESET:
+ case NAU8825_REG_IRQ_STATUS:
+ case NAU8825_REG_INT_CLR_KEY_STATUS:
+ case NAU8825_REG_IMM_RMS_L:
+ case NAU8825_REG_IMM_RMS_R:
+ case NAU8825_REG_I2C_DEVICE_ID:
+ case NAU8825_REG_SARDOUT_RAM_STATUS:
+ case NAU8825_REG_CHARGE_PUMP_INPUT_READ:
+ case NAU8825_REG_GENERAL_STATUS:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const DECLARE_TLV_DB_MINMAX_MUTE(adc_vol_tlv, -10300, 2400);
+static const DECLARE_TLV_DB_MINMAX_MUTE(sidetone_vol_tlv, -4200, 0);
+static const DECLARE_TLV_DB_MINMAX(dac_vol_tlv, -5400, 0);
+static const DECLARE_TLV_DB_MINMAX(fepga_gain_tlv, -100, 3600);
+
+static const struct snd_kcontrol_new nau8825_snd_controls[] = {
+ SOC_SINGLE_TLV("MIC Volume", NAU8825_REG_ADC_DGAIN_CTRL,
+ 0, 0xff, 0, adc_vol_tlv),
+ SOC_DOUBLE_TLV("HP Sidetone Volume", NAU8825_REG_ADC_DGAIN_CTRL,
+ 12, 8, 0x0f, 0, sidetone_vol_tlv),
+ SOC_DOUBLE_TLV("HP Volume", NAU8825_REG_HSVOL_CTRL,
+ 6, 0, 0x3f, 1, dac_vol_tlv),
+ SOC_SINGLE_TLV("Frontend PGA Gain", NAU8825_REG_POWER_UP_CONTROL,
+ 8, 37, 0, fepga_gain_tlv),
+};
+
+static int nau8825_charge_pump_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 nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
+ struct regmap *regmap = nau8825->regmap;
+
+ if (SND_SOC_DAPM_EVENT_ON(event)) {
+ regmap_update_bits(regmap, NAU8825_REG_CHARGE_PUMP,
+ NAU8825_JAMNODCLOW, NAU8825_JAMNODCLOW);
+ } else {
+ regmap_update_bits(regmap, NAU8825_REG_CHARGE_PUMP,
+ NAU8825_JAMNODCLOW, 0);
+ }
+
+ return 0;
+}
+
+static int nau8825_output_driver_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 nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
+ struct regmap *regmap = nau8825->regmap;
+
+ if (SND_SOC_DAPM_EVENT_ON(event)) {
+ /* Power Up L and R Output Drivers */
+ regmap_update_bits(regmap, NAU8825_REG_POWER_UP_CONTROL, 0x3c,
+ 0x3c);
+ /* Power up Main Output Drivers (The main driver must be turned
+ on after the predriver to avoid pops) */
+ regmap_update_bits(regmap, NAU8825_REG_POWER_UP_CONTROL, 0x3,
+ 0x3);
+ } else {
+ /* Power Down L and R Output Drivers */
+ regmap_update_bits(regmap, NAU8825_REG_POWER_UP_CONTROL, 0x3f,
+ 0x0);
+ }
+
+ return 0;
+}
+
+/* DAC Mux 0x33[9] and 0x34[9] */
+static const char * const nau8825_dac_src[] = {
+ "DACL", "DACR",
+};
+
+static SOC_ENUM_SINGLE_DECL(
+ nau8825_dacl_enum, NAU8825_REG_DACL_CTRL,
+ NAU8825_DACL_CH_SEL_SFT, nau8825_dac_src);
+
+static SOC_ENUM_SINGLE_DECL(
+ nau8825_dacr_enum, NAU8825_REG_DACR_CTRL,
+ NAU8825_DACR_CH_SEL_SFT, nau8825_dac_src);
+
+static const struct snd_kcontrol_new nau8825_dacl_mux =
+ SOC_DAPM_ENUM("DACL Source", nau8825_dacl_enum);
+
+static const struct snd_kcontrol_new nau8825_dacr_mux =
+ SOC_DAPM_ENUM("DACR Source", nau8825_dacr_enum);
+
+static const struct snd_soc_dapm_widget nau8825_dapm_widgets[] = {
+ SND_SOC_DAPM_INPUT("MIC"),
+ SND_SOC_DAPM_MICBIAS("MICBIAS", NAU8825_REG_MIC_BIAS, 8, 0),
+
+ SND_SOC_DAPM_PGA("Frontend PGA", NAU8825_REG_POWER_UP_CONTROL, 14, 0,
+ NULL, 0),
+
+ SND_SOC_DAPM_ADC("ADC", NULL, NAU8825_REG_ENA_CTRL, 8, 0),
+ SND_SOC_DAPM_SUPPLY("ADC Clock", NAU8825_REG_ENA_CTRL, 7, 0, NULL, 0),
+
+ /* ADC for button press detection */
+ SND_SOC_DAPM_ADC("SAR", NULL, NAU8825_REG_SAR_CTRL,
+ NAU8825_SAR_ADC_EN_SFT, 0),
+
+ SND_SOC_DAPM_DAC("ADACL", NULL, NAU8825_REG_RDAC, 12, 0),
+ SND_SOC_DAPM_DAC("ADACR", NULL, NAU8825_REG_RDAC, 13, 0),
+ SND_SOC_DAPM_SUPPLY("ADACL Clock", NAU8825_REG_RDAC, 8, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("ADACR Clock", NAU8825_REG_RDAC, 9, 0, NULL, 0),
+
+ SND_SOC_DAPM_DAC("DDACR", NULL, NAU8825_REG_ENA_CTRL,
+ NAU8825_ENABLE_DACR_SFT, 0),
+ SND_SOC_DAPM_DAC("DDACL", NULL, NAU8825_REG_ENA_CTRL,
+ NAU8825_ENABLE_DACL_SFT, 0),
+ SND_SOC_DAPM_SUPPLY("DDAC Clock", NAU8825_REG_ENA_CTRL, 6, 0, NULL, 0),
+
+ SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0,
+ &nau8825_dacl_mux),
+ SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0,
+ &nau8825_dacr_mux),
+
+ SND_SOC_DAPM_PGA("HP amp L", NAU8825_REG_CLASSG_CTRL, 1, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("HP amp R", NAU8825_REG_CLASSG_CTRL, 2, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("HP amp power", NAU8825_REG_CLASSG_CTRL, 0, 0, NULL,
+ 0),
+
+ SND_SOC_DAPM_SUPPLY("Change Pump", NAU8825_REG_CHARGE_PUMP, 5, 0,
+ nau8825_charge_pump_event,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+
+ SND_SOC_DAPM_SUPPLY("DACL Power", NAU8825_REG_CHARGE_PUMP, 8, 1, NULL,
+ 0),
+ SND_SOC_DAPM_SUPPLY("DACR Power", NAU8825_REG_CHARGE_PUMP, 9, 1, NULL,
+ 0),
+
+ SND_SOC_DAPM_OUT_DRV_E("Output Driver", SND_SOC_NOPM, 0, 0, NULL, 0,
+ nau8825_output_driver_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+
+ SND_SOC_DAPM_OUTPUT("HPOL"),
+ SND_SOC_DAPM_OUTPUT("HPOR"),
+};
+
+static const struct snd_soc_dapm_route nau8825_dapm_routes[] = {
+ {"Frontend PGA", NULL, "MIC"},
+ {"ADC", NULL, "Frontend PGA"},
+ {"ADC", NULL, "ADC Clock"},
+ {"Capture", NULL, "ADC"},
+
+ {"DDACL", NULL, "Playback"},
+ {"DDACR", NULL, "Playback"},
+ {"DDACL", NULL, "DDAC Clock"},
+ {"DDACR", NULL, "DDAC Clock"},
+ {"DDACL", NULL, "DACL Power"},
+ {"DDACR", NULL, "DACR Power"},
+ {"DACL Mux", "DACL", "DDACL"},
+ {"DACL Mux", "DACR", "DDACR"},
+ {"DACR Mux", "DACL", "DDACL"},
+ {"DACR Mux", "DACR", "DDACR"},
+ {"HP amp L", NULL, "Change Pump"},
+ {"HP amp R", NULL, "Change Pump"},
+ {"HP amp L", NULL, "DACL Mux"},
+ {"HP amp R", NULL, "DACR Mux"},
+ {"HP amp L", NULL, "HP amp power"},
+ {"HP amp R", NULL, "HP amp power"},
+ {"ADACL", NULL, "HP amp L"},
+ {"ADACR", NULL, "HP amp R"},
+ {"ADACL", NULL, "ADACL Clock"},
+ {"ADACR", NULL, "ADACR Clock"},
+ {"Output Driver", NULL, "ADACL"},
+ {"Output Driver", NULL, "ADACR"},
+ {"HPOL", NULL, "Output Driver"},
+ {"HPOR", NULL, "Output Driver"},
+};
+
+static int nau8825_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 nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
+ unsigned int val_len = 0;
+
+ switch (params_width(params)) {
+ case 16:
+ val_len |= NAU8825_I2S_DL_16;
+ break;
+ case 20:
+ val_len |= NAU8825_I2S_DL_20;
+ break;
+ case 24:
+ val_len |= NAU8825_I2S_DL_24;
+ break;
+ case 32:
+ val_len |= NAU8825_I2S_DL_32;
+ break;
+ default:
+ return -EINVAL;
+ }
+ regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL1,
+ NAU8825_I2S_DL_MASK, val_len);
+
+ return 0;
+}
+
+static int nau8825_mute(struct snd_soc_dai *codec_dai, int mute)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
+ int reg_val;
+
+ reg_val = mute ? NAU8825_HP_MUTE : 0;
+ regmap_update_bits(nau8825->regmap, NAU8825_REG_HSVOL_CTRL,
+ NAU8825_HP_MUTE, reg_val);
+
+ return 0;
+}
+
+static int nau8825_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
+ unsigned int ctrl1_val = 0, ctrl2_val = 0;
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ ctrl2_val |= NAU8825_I2S_MS_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ ctrl1_val |= NAU8825_I2S_BP_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ ctrl1_val |= NAU8825_I2S_DF_I2S;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ ctrl1_val |= NAU8825_I2S_DF_LEFT;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ ctrl1_val |= NAU8825_I2S_DF_RIGTH;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ ctrl1_val |= NAU8825_I2S_DF_PCM_AB;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ ctrl1_val |= NAU8825_I2S_DF_PCM_AB;
+ ctrl1_val |= NAU8825_I2S_PCMB_EN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL1,
+ NAU8825_I2S_DL_MASK | NAU8825_I2S_DF_MASK |
+ NAU8825_I2S_BP_MASK | NAU8825_I2S_PCMB_MASK,
+ ctrl1_val);
+ regmap_update_bits(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL2,
+ NAU8825_I2S_MS_MASK, ctrl2_val);
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops nau8825_dai_ops = {
+ .hw_params = nau8825_hw_params,
+ .digital_mute = nau8825_mute,
+ .set_fmt = nau8825_set_dai_fmt,
+};
+
+#define NAU8825_RATES SNDRV_PCM_RATE_8000_192000
+#define NAU8825_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE \
+ | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver nau8825_dai = {
+ .name = "nau8825-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = NAU8825_RATES,
+ .formats = NAU8825_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = NAU8825_RATES,
+ .formats = NAU8825_FORMATS,
+ },
+ .ops = &nau8825_dai_ops,
+};
+
+/**
+ * nau8825_enable_jack_detect - Specify a jack for event reporting
+ *
+ * @component: component to register the jack with
+ * @jack: jack to use to report headset and button events on
+ *
+ * After this function has been called the headset insert/remove and button
+ * events will be routed to the given jack. Jack can be null to stop
+ * reporting.
+ */
+int nau8825_enable_jack_detect(struct snd_soc_codec *codec,
+ struct snd_soc_jack *jack)
+{
+ struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
+
+ snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
+ snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
+ snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
+ snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
+
+ nau8825->jack = jack;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(nau8825_enable_jack_detect);
+
+
+static bool nau8825_is_jack_inserted(struct regmap *regmap)
+{
+ int status;
+
+ regmap_read(regmap, NAU8825_REG_I2C_DEVICE_ID, &status);
+ return !(status & NAU8825_GPIO2JD1);
+}
+
+static void nau8825_restart_jack_detection(struct regmap *regmap)
+{
+ /* this will restart the entire jack detection process including MIC/GND
+ * switching and create interrupts. We have to go from 0 to 1 and back
+ * to 0 to restart.
+ */
+ regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL,
+ NAU8825_JACK_DET_RESTART, NAU8825_JACK_DET_RESTART);
+ regmap_update_bits(regmap, NAU8825_REG_JACK_DET_CTRL,
+ NAU8825_JACK_DET_RESTART, 0);
+}
+
+static void nau8825_eject_jack(struct nau8825 *nau8825)
+{
+ struct snd_soc_dapm_context *dapm = nau8825->dapm;
+ struct regmap *regmap = nau8825->regmap;
+
+ snd_soc_dapm_disable_pin(dapm, "SAR");
+ snd_soc_dapm_disable_pin(dapm, "MICBIAS");
+ /* Detach 2kOhm Resistors from MICBIAS to MICGND1/2 */
+ regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS,
+ NAU8825_MICBIAS_JKSLV | NAU8825_MICBIAS_JKR2, 0);
+ /* ground HPL/HPR, MICGRND1/2 */
+ regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 0xf, 0xf);
+
+ snd_soc_dapm_sync(dapm);
+}
+
+static int nau8825_button_decode(int value)
+{
+ int buttons;
+
+ if (value & BIT(0))
+ buttons |= SND_JACK_BTN_0;
+ if (value & BIT(1))
+ buttons |= SND_JACK_BTN_1;
+ if (value & BIT(2))
+ buttons |= SND_JACK_BTN_2;
+ if (value & BIT(3))
+ buttons |= SND_JACK_BTN_3;
+
+ return buttons;
+}
+
+static int nau8825_jack_insert(struct nau8825 *nau8825)
+{
+ struct regmap *regmap = nau8825->regmap;
+ struct snd_soc_dapm_context *dapm = nau8825->dapm;
+ int jack_status_reg, mic_detected;
+ int type;
+
+ regmap_read(regmap, NAU8825_REG_GENERAL_STATUS, &jack_status_reg);
+ mic_detected = (jack_status_reg >> 10) & 3;
+
+ switch (mic_detected) {
+ case 0:
+ /* no mic */
+ type = SND_JACK_HEADPHONE;
+ break;
+ case 1:
+ dev_dbg(nau8825->dev, "OMTP (micgnd1) mic connected\n");
+ type = SND_JACK_HEADSET;
+
+ /* Unground MICGND1 */
+ regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 3 << 2,
+ 1 << 2);
+ /* Unground HPL/R */
+ regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 0x3, 0);
+ /* Attach 2kOhm Resistor from MICBIAS to MICGND1 */
+ regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS,
+ NAU8825_MICBIAS_JKSLV | NAU8825_MICBIAS_JKR2,
+ NAU8825_MICBIAS_JKR2);
+ /* Attach SARADC to MICGND1 */
+ regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL,
+ NAU8825_SAR_INPUT_MASK,
+ NAU8825_SAR_INPUT_JKR2);
+
+ snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
+ snd_soc_dapm_force_enable_pin(dapm, "SAR");
+ snd_soc_dapm_sync(dapm);
+ break;
+ case 2:
+ case 3:
+ dev_dbg(nau8825->dev, "CTIA (micgnd2) mic connected\n");
+ type = SND_JACK_HEADSET;
+
+ /* Unground MICGND2 */
+ regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 3 << 2,
+ 2 << 2);
+ /* Unground HPL/R */
+ regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, 0x3, 0);
+ /* Attach 2kOhm Resistor from MICBIAS to MICGND2 */
+ regmap_update_bits(regmap, NAU8825_REG_MIC_BIAS,
+ NAU8825_MICBIAS_JKSLV | NAU8825_MICBIAS_JKR2,
+ NAU8825_MICBIAS_JKSLV);
+ /* Attach SARADC to MICGND2 */
+ regmap_update_bits(regmap, NAU8825_REG_SAR_CTRL,
+ NAU8825_SAR_INPUT_MASK,
+ NAU8825_SAR_INPUT_JKSLV);
+
+ snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
+ snd_soc_dapm_force_enable_pin(dapm, "SAR");
+ snd_soc_dapm_sync(dapm);
+ break;
+ }
+
+ return type;
+}
+
+#define NAU8825_BUTTONS (SND_JACK_BTN_0 | SND_JACK_BTN_1 | \
+ SND_JACK_BTN_2 | SND_JACK_BTN_3)
+
+static irqreturn_t nau8825_interrupt(int irq, void *data)
+{
+ struct nau8825 *nau8825 = (struct nau8825 *)data;
+ struct regmap *regmap = nau8825->regmap;
+ int active_irq, clear_irq = 0, event = 0, event_mask = 0;
+
+ regmap_read(regmap, NAU8825_REG_IRQ_STATUS, &active_irq);
+
+ if ((active_irq & NAU8825_JACK_EJECTION_IRQ_MASK) ==
+ NAU8825_JACK_EJECTION_DETECTED) {
+
+ nau8825_eject_jack(nau8825);
+ event_mask |= SND_JACK_HEADSET;
+ clear_irq = NAU8825_JACK_EJECTION_IRQ_MASK;
+ } else if (active_irq & NAU8825_KEY_SHORT_PRESS_IRQ) {
+ int key_status;
+
+ regmap_read(regmap, NAU8825_REG_INT_CLR_KEY_STATUS,
+ &key_status);
+
+ /* upper 8 bits of the register are for short pressed keys,
+ lower 8 bits - for long pressed buttons */
+ nau8825->button_pressed = nau8825_button_decode(
+ key_status >> 8);
+
+ event |= nau8825->button_pressed;
+ event_mask |= NAU8825_BUTTONS;
+ clear_irq = NAU8825_KEY_SHORT_PRESS_IRQ;
+ } else if (active_irq & NAU8825_KEY_RELEASE_IRQ) {
+ event_mask = NAU8825_BUTTONS;
+ clear_irq = NAU8825_KEY_RELEASE_IRQ;
+ } else if (active_irq & NAU8825_HEADSET_COMPLETION_IRQ) {
+ if (nau8825_is_jack_inserted(regmap)) {
+ event |= nau8825_jack_insert(nau8825);
+ } else {
+ dev_warn(nau8825->dev, "Headset completion IRQ fired but no headset connected\n");
+ nau8825_eject_jack(nau8825);
+ }
+
+ event_mask |= SND_JACK_HEADSET;
+ clear_irq = NAU8825_HEADSET_COMPLETION_IRQ;
+ }
+
+ if (!clear_irq)
+ clear_irq = active_irq;
+ /* clears the rightmost interruption */
+ regmap_write(regmap, NAU8825_REG_INT_CLR_KEY_STATUS, clear_irq);
+
+ if (event_mask)
+ snd_soc_jack_report(nau8825->jack, event, event_mask);
+
+ return IRQ_HANDLED;
+}
+
+static void nau8825_setup_buttons(struct regmap *regmap)
+{
+ /* Setup Button Detect (Debounce, number of buttons, and Hysteresis) */
+ regmap_write(regmap, NAU8825_REG_KEYDET_CTRL, 0x7311);
+
+ /* Setup 4 buttons impedane according to Android specification
+ * https://source.android.com/accessories/headset-spec.html
+ * Button 0 - 0-70 Ohm
+ * Button 1 - 110-180 Ohm
+ * Button 2 - 210-290 Ohm
+ * Button 3 - 360-680 Ohm
+ */
+ regmap_write(regmap, NAU8825_REG_VDET_THRESHOLD_1, 0x0f1f);
+ regmap_write(regmap, NAU8825_REG_VDET_THRESHOLD_2, 0x325f);
+}
+
+static void nau8825_init_regs(struct nau8825 *nau8825)
+{
+ struct regmap *regmap = nau8825->regmap;
+ int jkdet_pullup_val;
+
+ /* Power down DACs for power savings */
+ regmap_write(regmap, NAU8825_REG_CHARGE_PUMP, 0x0300);
+ /* DAC Zero Crossing Enable */
+ regmap_write(regmap, NAU8825_REG_MUTE_CTRL, 0x1000);
+ /* VMID Enable and Tieoff */
+ regmap_write(regmap, NAU8825_REG_BIAS_ADJ, 0x0060);
+ /* Analog Bias Enable, Disable Boost Driver,
+ Automatic Short circuit protection enable */
+ regmap_write(regmap, NAU8825_REG_BOOST, 0x3140);
+ /* Ground HP Outputs[1:0],
+ Enable Automatic Mic/Gnd switching reading on insert interrupt[6] */
+ regmap_write(regmap, NAU8825_REG_HSD_CTRL, 0x004f);
+
+ jkdet_pullup_val = nau8825->jkdet_pullup ?
+ NAU8825_JKDET_PULL_SELECT : 0;
+ regmap_update_bits(regmap, NAU8825_REG_GPIO12_CTRL,
+ NAU8825_JKDET_PULL_SELECT, jkdet_pullup_val);
+
+ regmap_write(regmap, NAU8825_REG_JACK_DET_CTRL, 0x01e0);
+ /* IRQ Output Enable, Mask Insert Interrupt */
+ regmap_write(regmap, NAU8825_REG_INTERRUPT_MASK, 0x0801);
+
+ /* Setup SAR ADC */
+ regmap_write(regmap, NAU8825_REG_SAR_CTRL, 0x0280);
+ nau8825_setup_buttons(regmap);
+
+ /* Setup ADC x128 OSR */
+ regmap_write(regmap, NAU8825_REG_ADC_RATE, 0x0002);
+ /* Setup DAC x128 OSR */
+ regmap_write(regmap, NAU8825_REG_DAC_CTRL1, 0x0082);
+ /* DAC bias settings */
+ regmap_write(regmap, NAU8825_REG_ANALOG_CONTROL_2, 0x1003);
+ /* ADC Bias Settings */
+ regmap_write(regmap, NAU8825_REG_ANALOG_ADC_2, 0x0260);
+ /* Maximize Jack Insert Debounce */
+ regmap_write(regmap, NAU8825_REG_JACK_DET_CTRL, 0x00e0);
+
+ /* Setup clocks */
+ regmap_write(regmap, NAU8825_REG_ENA_CTRL, 0x0416);
+
+ /* Mask jack insert interruption */
+ regmap_write(regmap, NAU8825_REG_INTERRUPT_DIS_CTRL, 0x0011);
+}
+
+static const struct regmap_config nau8825_regmap_config = {
+ .val_bits = 16,
+ .reg_bits = 16,
+
+ .max_register = NAU8825_REG_MAX,
+ .readable_reg = nau8825_readable_reg,
+ .writeable_reg = nau8825_writeable_reg,
+ .volatile_reg = nau8825_volatile_reg,
+
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults = nau8825_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(nau8825_reg_defaults),
+};
+
+static int nau8825_codec_probe(struct snd_soc_codec *codec)
+{
+ struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
+
+ nau8825->dapm = &codec->dapm;
+
+ /* The interrupt clock is gated by x1[10:8],
+ * one of them needs to be enabled all the time for
+ * interrupts to happen. */
+ snd_soc_dapm_force_enable_pin(&codec->dapm, "DDACR");
+ snd_soc_dapm_sync(&codec->dapm);
+
+ /* Chip needs one FSCLK cycle in order to generate interrupts,
+ * as we cannot guarantee one will be provided by the system. Turning
+ * master mode on then off enables us to generate that FSCLK cycle
+ * with a minimum of contention on the clock bus.
+ * Enables master mode and correctly divides BCLK and FSCLK from MCLK.
+ */
+ regmap_write(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL2, 0x2019);
+ regmap_write(nau8825->regmap, NAU8825_REG_I2S_PCM_CTRL2, 0x0010);
+
+ nau8825_restart_jack_detection(nau8825->regmap);
+
+ return 0;
+}
+
+static struct snd_soc_codec_driver nau8825_codec_driver = {
+ .probe = nau8825_codec_probe,
+
+ .controls = nau8825_snd_controls,
+ .num_controls = ARRAY_SIZE(nau8825_snd_controls),
+ .dapm_widgets = nau8825_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(nau8825_dapm_widgets),
+ .dapm_routes = nau8825_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(nau8825_dapm_routes),
+};
+
+static void nau8825_reset_chip(struct regmap *regmap)
+{
+ regmap_write(regmap, NAU8825_REG_RESET, 0x00);
+ regmap_write(regmap, NAU8825_REG_RESET, 0x00);
+}
+
+static int nau8825_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &i2c->dev;
+ struct nau8825 *nau8825;
+ int ret, value;
+
+ nau8825 = devm_kzalloc(dev, sizeof(*nau8825), GFP_KERNEL);
+ if (!nau8825)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, nau8825);
+
+ nau8825->regmap = devm_regmap_init_i2c(i2c, &nau8825_regmap_config);
+ if (IS_ERR(nau8825->regmap))
+ return PTR_ERR(nau8825->regmap);
+ nau8825->irq = i2c->irq;
+ nau8825->dev = dev;
+
+ nau8825->jkdet_pullup = device_property_read_bool(dev,
+ "nuvoton,jkdet-pullup");
+
+ nau8825_reset_chip(nau8825->regmap);
+ ret = regmap_read(nau8825->regmap, NAU8825_REG_I2C_DEVICE_ID, &value);
+ if (ret < 0) {
+ dev_err(dev, "Failed to read device id from the NAU8825: %d\n",
+ ret);
+ return ret;
+ }
+ if ((value & NAU8825_SOFTWARE_ID_MASK) !=
+ NAU8825_SOFTWARE_ID_NAU8825) {
+ dev_err(dev, "Not a NAU8825 chip\n");
+ return -ENODEV;
+ }
+
+ snd_soc_register_codec(&i2c->dev, &nau8825_codec_driver,
+ &nau8825_dai, 1);
+
+ nau8825_init_regs(nau8825);
+
+ if (nau8825->irq) {
+ int ret = devm_request_threaded_irq(dev, nau8825->irq, NULL,
+ nau8825_interrupt, IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "nau8825", nau8825);
+
+ if (ret) {
+ dev_err(dev, "Cannot request irq %d (%d)\n",
+ nau8825->irq, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int nau8825_i2c_remove(struct i2c_client *client)
+{
+ snd_soc_unregister_codec(&client->dev);
+ return 0;
+}
+
+static const struct i2c_device_id nau8825_i2c_ids[] = {
+ { "nau8825", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, nau8825_i2c_ids);
+
+static struct i2c_driver nau8825_driver = {
+ .driver = {
+ .name = "nau8825",
+ .owner = THIS_MODULE,
+ },
+ .probe = nau8825_i2c_probe,
+ .remove = nau8825_i2c_remove,
+ .id_table = nau8825_i2c_ids,
+};
+module_i2c_driver(nau8825_driver);
+
+MODULE_DESCRIPTION("ASoC nau8825 driver");
+MODULE_AUTHOR("Anatol Pomozov <anatol@chromium.org>");
+MODULE_LICENSE("GPL");
new file mode 100644
@@ -0,0 +1,262 @@
+/*
+ * NAU8825 ALSA SoC audio driver
+ *
+ * Copyright 2015 Google Inc.
+ * Author: Anatol Pomozov <anatol.pomozov@chrominium.org>
+ *
+ * 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.
+ */
+
+#ifndef __NAU8825_H__
+#define __NAU8825_H__
+
+#define NAU8825_REG_RESET 0x00
+#define NAU8825_REG_ENA_CTRL 0x01
+#define NAU8825_REG_CLK_DIVIDER 0x03
+#define NAU8825_REG_FLL1 0x04
+#define NAU8825_REG_FLL2 0x05
+#define NAU8825_REG_FLL3 0x06
+#define NAU8825_REG_FLL4 0x07
+#define NAU8825_REG_FLL5 0x08
+#define NAU8825_REG_FLL6 0x09
+#define NAU8825_REG_FLL_VCO_RSV 0x0a
+#define NAU8825_REG_HSD_CTRL 0x0c
+#define NAU8825_REG_JACK_DET_CTRL 0x0d
+#define NAU8825_REG_INTERRUPT_MASK 0x0f
+#define NAU8825_REG_IRQ_STATUS 0x10
+#define NAU8825_REG_INT_CLR_KEY_STATUS 0x11
+#define NAU8825_REG_INTERRUPT_DIS_CTRL 0x12
+#define NAU8825_REG_SAR_CTRL 0x13
+#define NAU8825_REG_KEYDET_CTRL 0x14
+#define NAU8825_REG_VDET_THRESHOLD_1 0x15
+#define NAU8825_REG_VDET_THRESHOLD_2 0x16
+#define NAU8825_REG_VDET_THRESHOLD_3 0x17
+#define NAU8825_REG_VDET_THRESHOLD_4 0x18
+#define NAU8825_REG_GPIO34_CTRL 0x19
+#define NAU8825_REG_GPIO12_CTRL 0x1a
+#define NAU8825_REG_TDM_CTRL 0x1b
+#define NAU8825_REG_I2S_PCM_CTRL1 0x1c
+#define NAU8825_REG_I2S_PCM_CTRL2 0x1d
+#define NAU8825_REG_LEFT_TIME_SLOT 0x1e
+#define NAU8825_REG_RIGHT_TIME_SLOT 0x1f
+#define NAU8825_REG_BIQ_CTRL 0x20
+#define NAU8825_REG_BIQ_COF1 0x21
+#define NAU8825_REG_BIQ_COF2 0x22
+#define NAU8825_REG_BIQ_COF3 0x23
+#define NAU8825_REG_BIQ_COF4 0x24
+#define NAU8825_REG_BIQ_COF5 0x25
+#define NAU8825_REG_BIQ_COF6 0x26
+#define NAU8825_REG_BIQ_COF7 0x27
+#define NAU8825_REG_BIQ_COF8 0x28
+#define NAU8825_REG_BIQ_COF9 0x29
+#define NAU8825_REG_BIQ_COF10 0x2a
+#define NAU8825_REG_ADC_RATE 0x2b
+#define NAU8825_REG_DAC_CTRL1 0x2c
+#define NAU8825_REG_DAC_CTRL2 0x2d
+#define NAU8825_REG_DAC_DGAIN_CTRL 0x2f
+#define NAU8825_REG_ADC_DGAIN_CTRL 0x30
+#define NAU8825_REG_MUTE_CTRL 0x31
+#define NAU8825_REG_HSVOL_CTRL 0x32
+#define NAU8825_REG_DACL_CTRL 0x33
+#define NAU8825_REG_DACR_CTRL 0x34
+#define NAU8825_REG_ADC_DRC_KNEE_IP12 0x38
+#define NAU8825_REG_ADC_DRC_KNEE_IP34 0x39
+#define NAU8825_REG_ADC_DRC_SLOPES 0x3a
+#define NAU8825_REG_ADC_DRC_ATKDCY 0x3b
+#define NAU8825_REG_DAC_DRC_KNEE_IP12 0x45
+#define NAU8825_REG_DAC_DRC_KNEE_IP34 0x46
+#define NAU8825_REG_DAC_DRC_SLOPES 0x47
+#define NAU8825_REG_DAC_DRC_ATKDCY 0x48
+#define NAU8825_REG_IMM_MODE_CTRL 0x4c
+#define NAU8825_REG_IMM_RMS_L 0x4d
+#define NAU8825_REG_IMM_RMS_R 0x4e
+#define NAU8825_REG_CLASSG_CTRL 0x50
+#define NAU8825_REG_OPT_EFUSE_CTRL 0x51
+#define NAU8825_REG_MISC_CTRL 0x55
+#define NAU8825_REG_I2C_DEVICE_ID 0x58
+#define NAU8825_REG_SARDOUT_RAM_STATUS 0x59
+#define NAU8825_REG_BIAS_ADJ 0x66
+#define NAU8825_REG_TRIM_SETTINGS 0x68
+#define NAU8825_REG_ANALOG_CONTROL_1 0x69
+#define NAU8825_REG_ANALOG_CONTROL_2 0x6a
+#define NAU8825_REG_ANALOG_ADC_1 0x71
+#define NAU8825_REG_ANALOG_ADC_2 0x72
+#define NAU8825_REG_RDAC 0x73
+#define NAU8825_REG_MIC_BIAS 0x74
+#define NAU8825_REG_BOOST 0x76
+#define NAU8825_REG_FEPGA 0x77
+#define NAU8825_REG_POWER_UP_CONTROL 0x7f
+#define NAU8825_REG_CHARGE_PUMP 0x80
+#define NAU8825_REG_CHARGE_PUMP_INPUT_READ 0x81
+#define NAU8825_REG_GENERAL_STATUS 0x82
+#define NAU8825_REG_MAX NAU8825_REG_GENERAL_STATUS
+
+/* ENA_CTRL (0x1) */
+#define NAU8825_ENABLE_DACR_SFT 10
+#define NAU8825_ENABLE_DACL_SFT 9
+#define NAU8825_ENABLE_ADC_SFT 8
+#define NAU8825_ENABLE_SAR_SFT 1
+
+/* CLK_DIVIDER (0x3) */
+#define NAU8825_CLK_SRC_SFT 15
+#define NAU8825_CLK_SRC_MASK (1 << NAU8825_CLK_SRC_SFT)
+#define NAU8825_CLK_SRC_VCO (1 << NAU8825_CLK_SRC_SFT)
+#define NAU8825_CLK_SRC_MCLK (0 << NAU8825_CLK_SRC_SFT)
+
+/* HSD_CTRL (0xc) */
+#define NAU8825_HSD_AUTO_MODE (1 << 6)
+#define NAU8825_SPKR_DWN1R_SHORT (1 << 1)
+#define NAU8825_SPKR_DWN1L_SHORT (1 << 0)
+
+/* JACK_DET_CTRL (0xd) */
+#define NAU8825_JACK_DET_RESTART (1 << 9)
+
+/* IRQ_STATUS (0x10) */
+#define NAU8825_HEADSET_COMPLETION_IRQ (1 << 10)
+#define NAU8825_SHORT_CIRCUIT_IRQ (1 << 9)
+#define NAU8825_IMPEDANCE_MEAS_IRQ (1 << 8)
+#define NAU8825_KEY_IRQ_MASK (0x7 << 5)
+#define NAU8825_KEY_RELEASE_IRQ (1 << 7)
+#define NAU8825_KEY_LONG_PRESS_IRQ (1 << 6)
+#define NAU8825_KEY_SHORT_PRESS_IRQ (1 << 5)
+#define NAU8825_MIC_DETECTION_IRQ (1 << 4)
+#define NAU8825_JACK_EJECTION_IRQ_MASK (3 << 2)
+#define NAU8825_JACK_EJECTION_DETECTED (1 << 2)
+#define NAU8825_JACK_INSERTION_IRQ_MASK (3 << 0)
+#define NAU8825_JACK_INSERTION_DETECTED (1 << 0)
+
+/* SAR_CTRL (0x13) */
+#define NAU8825_SAR_ADC_EN_SFT 12
+#define NAU8825_SAR_ADC_EN (1 << NAU8825_SAR_ADC_EN_SFT)
+#define NAU8825_SAR_INPUT_MASK (1 << 11)
+#define NAU8825_SAR_INPUT_JKSLV (1 << 11)
+#define NAU8825_SAR_INPUT_JKR2 (0 << 11)
+
+/* KEYDET_CTRL (0x14) */
+#define NAU8825_KEYDET_LEVELS_NR_SFT 8
+#define NAU8825_KEYDET_LEVELS_NR_MASK (0x7 << 8)
+
+/* GPIO12_CTRL (0x1a) */
+/* 0 - pull down, 1 - pull up */
+#define NAU8825_JKDET_PULL_SELECT (1 << 11)
+
+/* I2S_PCM_CTRL1 (0x1c) */
+#define NAU8825_I2S_BP_SFT 7
+#define NAU8825_I2S_BP_MASK (1 << NAU8825_I2S_BP_SFT)
+#define NAU8825_I2S_BP_INV (1 << NAU8825_I2S_BP_SFT)
+#define NAU8825_I2S_PCMB_SFT 6
+#define NAU8825_I2S_PCMB_MASK (1 << NAU8825_I2S_PCMB_SFT)
+#define NAU8825_I2S_PCMB_EN (1 << NAU8825_I2S_PCMB_SFT)
+#define NAU8825_I2S_DL_SFT 2
+#define NAU8825_I2S_DL_MASK (0x3 << NAU8825_I2S_DL_SFT)
+#define NAU8825_I2S_DL_16 (0 << NAU8825_I2S_DL_SFT)
+#define NAU8825_I2S_DL_20 (1 << NAU8825_I2S_DL_SFT)
+#define NAU8825_I2S_DL_24 (2 << NAU8825_I2S_DL_SFT)
+#define NAU8825_I2S_DL_32 (3 << NAU8825_I2S_DL_SFT)
+#define NAU8825_I2S_DF_SFT 0
+#define NAU8825_I2S_DF_MASK (0x3 << NAU8825_I2S_DF_SFT)
+#define NAU8825_I2S_DF_RIGTH (0 << NAU8825_I2S_DF_SFT)
+#define NAU8825_I2S_DF_LEFT (1 << NAU8825_I2S_DF_SFT)
+#define NAU8825_I2S_DF_I2S (2 << NAU8825_I2S_DF_SFT)
+#define NAU8825_I2S_DF_PCM_AB (3 << NAU8825_I2S_DF_SFT)
+
+/* I2S_PCM_CTRL2 (0x1d) */
+#define NAU8825_I2S_MS_SFT 3
+#define NAU8825_I2S_MS_MASK (1 << NAU8825_I2S_MS_SFT)
+#define NAU8825_I2S_MS_MASTER (1 << NAU8825_I2S_MS_SFT)
+#define NAU8825_I2S_MS_SLAVE (0 << NAU8825_I2S_MS_SFT)
+
+/* ADC_RATE (0x2b) */
+#define NAU8825_ADC_SINC4 (1 << 4)
+#define NAU8825_ADC_SINC_DOWN_MASK 3
+#define NAU8825_ADC_SINC_DOWN_32 0
+#define NAU8825_ADC_SINC_DOWN_64 1
+#define NAU8825_ADC_SINC_DOWN_128 2
+#define NAU8825_ADC_SINC_DOWN_256 3
+
+/* DAC_CTRL1 (0x2c) */
+#define NAU8825_DAC_CLIP_OFF (1 << 7)
+#define NAU8825_DAC_OVERSAMPLE_MASK 7
+#define NAU8825_DAC_OVERSAMPLE_64 0
+#define NAU8825_DAC_OVERSAMPLE_256 1
+#define NAU8825_DAC_OVERSAMPLE_128 2
+#define NAU8825_DAC_OVERSAMPLE_32 4
+
+/* MUTE_CTRL (0x31) */
+#define NAU8825_DAC_ZERO_CROSSING_EN (1 << 9)
+#define NAU8825_DAC_SOFT_MUTE (1 << 9)
+
+/* HSVOL_CTRL (0x32) */
+#define NAU8825_HP_MUTE (1 << 15)
+
+/* DACL_CTRL (0x33) */
+#define NAU8825_DACL_CH_SEL_SFT 9
+
+/* DACR_CTRL (0x34) */
+#define NAU8825_DACR_CH_SEL_SFT 9
+
+/* I2C_DEVICE_ID (0x58) */
+#define NAU8825_GPIO2JD1 (1 << 7)
+#define NAU8825_SOFTWARE_ID_MASK 0x3
+#define NAU8825_SOFTWARE_ID_NAU8825 0x0
+
+/* BIAS_ADJ (0x66) */
+#define NAU8825_BIAS_VMID (1 << 6)
+#define NAU8825_BIAS_VMID_SEL_MASK (3 << 4)
+#define NAU8825_BIAS_VMID_SEL_OPEN (0 << 4)
+#define NAU8825_BIAS_VMID_SEL_25KOHM (1 << 4)
+#define NAU8825_BIAS_VMID_SEL_125KOHM (2 << 4)
+#define NAU8825_BIAS_VMID_SEL_2_5KOHM (3 << 4)
+
+/* ANALOG_CONTROL_2 (0x6a) */
+#define NAU8825_HP_NON_CLASSG_CURRENT_2xADJ (1 << 12)
+#define NAU8825_DAC_CAPACITOR_MSB (1 << 1)
+#define NAU8825_DAC_CAPACITOR_LSB (1 << 0)
+
+/* ANALOG_ADC_2 (0x72) */
+#define NAU8825_ADC_VREFSEL_MASK (0x3 << 8)
+#define NAU8825_ADC_VREFSEL_ANALOG (0 << 8)
+#define NAU8825_ADC_VREFSEL_VMID (1 << 8)
+#define NAU8825_ADC_VREFSEL_VMID_PLUS_0_5DB (2 << 8)
+#define NAU8825_ADC_VREFSEL_VMID_PLUS_1DB (3 << 8)
+#define NAU8825_POWERUP_ADCL (1 << 6)
+
+/* MIC_BIAS (0x74) */
+#define NAU8825_MICBIAS_JKSLV (1 << 14)
+#define NAU8825_MICBIAS_JKR2 (1 << 12)
+#define NAU8825_MICBIAS_POWERUP_SFT 8
+
+/* BOOST (0x76) */
+#define NAU8825_PRECHARGE_DIS (1 << 13)
+#define NAU8825_GLOBAL_BIAS_EN (1 << 12)
+#define NAU8825_HP_BOOST_DIS (1 << 12)
+#define NAU8825_SHORT_SHUTDOWN_EN (1 << 6)
+
+/* POWER_UP_CONTROL (0x7f) */
+#define NAU8825_POWERUP_HP_DRV_L (1 << 0)
+#define NAU8825_POWERUP_HP_DRV_R (1 << 1)
+#define NAU8825_POWERUP_DRV_IN_L (1 << 2)
+#define NAU8825_POWERUP_DRV_IN_R (1 << 3)
+#define NAU8825_POWERUP_INTEGR_L (1 << 4)
+#define NAU8825_POWERUP_INTEGR_R (1 << 5)
+
+/* CHARGE_PUMP_AND_POWER_DOWN_CONTROL (0x80) */
+#define NAU8825_JAMNODCLOW (1 << 10)
+#define NAU8825_POWER_DOWN_DACR (1 << 9)
+#define NAU8825_POWER_DOWN_DACL (1 << 8)
+#define NAU8825_CHANRGE_PUMP_EN (1 << 5)
+
+
+/* System Clock Source */
+enum {
+ NAU8825_CLK_MCLK = 0,
+ NAU8825_CLK_INTERNAL,
+};
+
+int nau8825_enable_jack_detect(struct snd_soc_codec *codec,
+ struct snd_soc_jack *jack);
+
+
+#endif /* __NAU8825_H__ */
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com> --- .../devicetree/bindings/sound/nau8825.txt | 18 + sound/soc/codecs/Kconfig | 4 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/nau8825.c | 874 +++++++++++++++++++++ sound/soc/codecs/nau8825.h | 262 ++++++ 5 files changed, 1160 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/nau8825.txt create mode 100644 sound/soc/codecs/nau8825.c create mode 100644 sound/soc/codecs/nau8825.h