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Subject[PATCH v2] ASoC: Add support for NAU8825 codec to ASoC
The NAU88L25 is an ultra-low power high performance audio codec designed
for smartphone, tablet PC, and other portable devices by Nuvoton, now
add linux driver support for it.

Signed-off-by: Chih-Chiang Chang <ccchang12@nuvoton.com>
---
v2->v1:
- fixes according to Lars-Peter Clausen's review comments
- removes unused platform data file
- corrects the naming of DAPM input widget
- fixes some wrong coding of SOC widgets and other codes
- adds definition and remark for config FLL clock
- moves the code of reset hardware registers from codec_probe() to i2c_probe()
- removes unused codes

sound/soc/codecs/Kconfig | 5 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/nau8825.c | 563 +++++++++++++++++++++++++++++++++++++++++++++
sound/soc/codecs/nau8825.h | 170 ++++++++++++++
4 files changed, 740 insertions(+)
create mode 100644 sound/soc/codecs/nau8825.c
create mode 100644 sound/soc/codecs/nau8825.h

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 061c465..ad7e205 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -76,6 +76,7 @@ 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
@@ -468,6 +469,10 @@ config SND_SOC_MAX98925
config SND_SOC_MAX9850
tristate

+config SND_SOC_NAU8825
+ tristate "Nuvoton NAU8825 CODEC"
+ depends on I2C
+
config SND_SOC_PCM1681
tristate "Texas Instruments PCM1681 CODEC"
depends on I2C
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index abe2d7e..9663e1c 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -69,6 +69,7 @@ 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
@@ -254,6 +255,7 @@ 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
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
new file mode 100644
index 0000000..f19c117
--- /dev/null
+++ b/sound/soc/codecs/nau8825.c
@@ -0,0 +1,563 @@
+/*
+ * nau8825.c
+ *
+ * Copyright 2015 Nuvoton Technology Corp.
+ * Author: Meng-Huang Kuo <mhkuo@nuvoton.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/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/device.h>
+#include <linux/clk.h>
+#include <linux/regmap.h>
+#include <linux/acpi.h>
+#include <asm/div64.h>
+#include <sound/jack.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 <linux/delay.h>
+#include "nau8825.h"
+
+static const DECLARE_TLV_DB_SCALE(out_hp_vol_tlv, -5400, 100, 0);
+static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -10350, 50, 0);
+
+static const struct snd_kcontrol_new nau8825_snd_controls[] = {
+
+ SOC_SINGLE_TLV("MIC Volume", NAU8825_ADC_DGAIN_CTRL,
+ NAU8825_ADC_DGAIN_SFT,
+ NAU8825_ADC_VOL_RSCL_RANGE, 0, adc_vol_tlv),
+ SOC_DOUBLE_TLV("HP Volume", NAU8825_HSVOL_CTRL,
+ NAU8825_L_HSVOL_SFT, NAU8825_R_HSVOL_SFT,
+ NAU8825_VOL_RSCL_RANGE, 1, out_hp_vol_tlv),
+};
+
+static const struct snd_kcontrol_new nau8825_hpo_mix[] = {
+
+ SOC_DAPM_SINGLE("HP L Switch", NAU8825_HSVOL_CTRL,
+ NAU8825_L_MUTE_SFT, 1, 1),
+ SOC_DAPM_SINGLE("HP R Switch", NAU8825_HSVOL_CTRL,
+ NAU8825_R_MUTE_SFT, 1, 1),
+};
+
+static const struct snd_soc_dapm_widget nau8825_dapm_widgets[] = {
+
+ /* Input */
+ SND_SOC_DAPM_INPUT("MIC"),
+ SND_SOC_DAPM_SUPPLY("MIC BIAS", NAU8825_BOOST, NAU8825_G_BIAS_SFT, 0,
+ NULL, 0),
+ /* Audio Interface */
+ SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("AIF1TX", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0),
+ /* DACs */
+ SND_SOC_DAPM_DAC("DAC L1", NULL, NAU8825_DAC_CTRL,
+ NAU8825_DAC_L_SFT, 0),
+ SND_SOC_DAPM_DAC("DAC R1", NULL, NAU8825_DAC_CTRL,
+ NAU8825_DAC_R_SFT, 0),
+ /* SPO/HPO/LOUT/Mono Mixer */
+ SND_SOC_DAPM_MIXER("HPO MIX", SND_SOC_NOPM, 0, 0, nau8825_hpo_mix,
+ ARRAY_SIZE(nau8825_hpo_mix)),
+ SND_SOC_DAPM_SUPPLY("HP amp", NAU8825_CLASS_G_CTRL,
+ NAU8825_CLASS_G_SHIFT, 0, NULL, 0),
+ /* Output */
+ SND_SOC_DAPM_OUTPUT("HPOL"),
+ SND_SOC_DAPM_OUTPUT("HPOR"),
+};
+
+static const struct snd_soc_dapm_route nau8825_dapm_routes[] = {
+
+ {"AIF1TX", NULL, "MIC"},
+ {"DAC L1", NULL, "AIF1RX"},
+ {"DAC R1", NULL, "AIF1RX"},
+ {"HPO MIX", "HP L Switch", "DAC L1"},
+ {"HPO MIX", "HP R Switch", "DAC R1"},
+ {"HPOL", NULL, "HPO MIX"},
+ {"HPOR", NULL, "HPO MIX"},
+ {"HPOL", NULL, "HP amp"},
+ {"HPOR", NULL, "HP amp"},
+};
+
+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_priv *nau8825 = snd_soc_codec_get_drvdata(codec);
+ unsigned int val_len = 0;
+
+ switch (params_width(params)) {
+ case 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_I2S_PCM_CTRL_1,
+ NAU8825_I2S_DL_MASK, val_len);
+ return 0;
+}
+
+static int nau8825_dac_mute(struct snd_soc_dai *codec_dai, int mute)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct nau8825_priv *nau8825 = snd_soc_codec_get_drvdata(codec);
+
+ if (mute)
+ regmap_update_bits(nau8825->regmap, NAU8825_DAC_MUTE_CTRL,
+ NAU8825_SOFT_MUTE_MASK, NAU8825_SOFT_MUTE_EN);
+ else
+ regmap_update_bits(nau8825->regmap, NAU8825_DAC_MUTE_CTRL,
+ NAU8825_SOFT_MUTE_MASK, NAU8825_SOFT_MUTE_DIS);
+ 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_priv *nau8825 = snd_soc_codec_get_drvdata(codec);
+ unsigned int reg_val = 0;
+
+ dev_dbg(codec->dev, " %s ###nau8825_set_dai_fmt %x\n", __func__, fmt);
+ /* interface format */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ reg_val |= NAU8825_I2S_BP_INV;
+ break;
+ default:
+ dev_alert(codec->dev, "Invalid DAI interface format\n");
+ return -EINVAL;
+ }
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ reg_val |= NAU8825_I2S_DF_I2S;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ reg_val |= NAU8825_I2S_DF_LEFT;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ reg_val |= NAU8825_I2S_DF_RIGHT;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ reg_val |= NAU8825_I2S_DF_PCM_A;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ reg_val |= NAU8825_I2S_DF_PCM_B;
+ reg_val |= NAU8825_I2S_PCMB_EN;
+ break;
+ default:
+ dev_alert(codec->dev, "Invalid DAI I2S/PCM format\n");
+ return -EINVAL;
+ }
+ regmap_update_bits(nau8825->regmap, NAU8825_I2S_PCM_CTRL_1,
+ NAU8825_I2S_DL_MASK | NAU8825_I2S_DF_MASK
+ | NAU8825_I2S_BP_MASK | NAU8825_I2S_PCMB_MASK,
+ reg_val);
+ return 0;
+}
+
+static void config_fll_clk_12m(struct snd_soc_codec *codec)
+{
+ struct nau8825_priv *nau8825 = snd_soc_codec_get_drvdata(codec);
+
+ regmap_update_bits(nau8825->regmap, NAU8825_CLK_DIVIDER,
+ NAU8825_CLK_MCLK_SRC_MASK, 0x0003);
+ regmap_update_bits(nau8825->regmap, NAU8825_FLL_1,
+ NAU8825_FLL_RATIO_MASK, 0x0001);
+ /* FLL 16-bit fractional input */
+ regmap_write(nau8825->regmap, NAU8825_FLL_2, 0xC49B);
+ /* FLL 10-bit integer input */
+ regmap_update_bits(nau8825->regmap, NAU8825_FLL_3,
+ NAU8825_FLL_INTEGER_MASK, 0x0020);
+ /* FLL pre-scaler */
+ regmap_update_bits(nau8825->regmap, NAU8825_FLL_4,
+ NAU8825_FLL_REF_DIV_MASK, 0x0800);
+ /* select divied VCO input */
+ regmap_update_bits(nau8825->regmap, NAU8825_FLL_5,
+ NAU8825_FLL_FILTER_SW_MASK, 0x0000);
+ /* FLL sigma delta modulator enable */
+ regmap_update_bits(nau8825->regmap, NAU8825_FLL_6,
+ NAU8825_SDM_EN_MASK, 0x4000);
+}
+
+static void set_sys_clk(struct snd_soc_codec *codec, int sys_clk)
+{
+ struct nau8825_priv *nau8825 = snd_soc_codec_get_drvdata(codec);
+
+ pr_debug("%s :: sys_clk=%x\n", __func__, sys_clk);
+ switch (sys_clk) {
+ case NAU8825_INTERNALCLOCK:
+ regmap_update_bits(nau8825->regmap, NAU8825_CLK_DIVIDER,
+ NAU8825_SYSCLK_EN_MASK, NAU8825_SYSCLK_DIS);
+ regmap_update_bits(nau8825->regmap, NAU8825_FLL_6,
+ NAU8825_DCO_EN_MASK, NAU8825_DCO_EN);
+ regmap_update_bits(nau8825->regmap, NAU8825_CLK_DIVIDER,
+ NAU8825_SYSCLK_EN_MASK, NAU8825_SYSCLK_EN);
+ break;
+ case NAU8825_MCLK:
+ default:
+ regmap_update_bits(nau8825->regmap, NAU8825_CLK_DIVIDER,
+ NAU8825_SYSCLK_EN_MASK, NAU8825_SYSCLK_DIS);
+ regmap_update_bits(nau8825->regmap, NAU8825_FLL_6,
+ NAU8825_DCO_EN_MASK, NAU8825_DCO_DIS);
+ regmap_update_bits(nau8825->regmap, NAU8825_CLK_DIVIDER,
+ NAU8825_SYSCLK_EN_MASK, NAU8825_SYSCLK_EN);
+ break;
+ }
+}
+
+static int nau8825_dai_set_sysclk(struct snd_soc_dai *dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_codec *codec = dai->codec;
+
+ switch (clk_id) {
+ case NAU8825_MCLK:
+ config_fll_clk_12m(codec);
+ set_sys_clk(codec, clk_id);
+ break;
+ case NAU8825_INTERNALCLOCK:
+ set_sys_clk(codec, clk_id);
+ break;
+ default:
+ dev_err(codec->dev, "Wrong clock src\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int nau8825_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ struct nau8825_priv *nau8825 = snd_soc_codec_get_drvdata(codec);
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ /* All power is driven by DAPM system*/
+ dev_dbg(codec->dev, "###nau8825_set_bias_level BIAS_ON\n");
+ regmap_update_bits(nau8825->regmap, NAU8825_BIAS_ADJ,
+ NAU8825_VMID_MASK, NAU8825_VMID_EN);
+ regmap_update_bits(nau8825->regmap, NAU8825_BOOST,
+ NAU8825_G_BIAS_MASK, NAU8825_G_BIAS_EN);
+ break;
+ case SND_SOC_BIAS_OFF:
+ dev_dbg(codec->dev, "###nau8825_set_bias_level OFF\n");
+ set_sys_clk(codec, NAU8825_INTERNALCLOCK);
+ regmap_update_bits(nau8825->regmap, NAU8825_BIAS_ADJ,
+ NAU8825_VMID_MASK, NAU8825_VMID_DIS);
+ regmap_update_bits(nau8825->regmap, NAU8825_BOOST,
+ NAU8825_G_BIAS_MASK, NAU8825_G_BIAS_DIS);
+ break;
+ default:
+ break;
+ }
+ codec->dapm.bias_level = level;
+ dev_dbg(codec->dev, "## nau8825_set_bias_level %d\n", level);
+ return 0;
+}
+
+static const struct reg_default nau8825_reg[] = {
+ /* enable clock source */
+ {0x0001, 0x07FF},
+ /* enable VMID and Bias */
+ {0x0076, 0x3140},
+ /* setup clock divider */
+ {0x0003, 0x0050},
+ /* jack detection configuration */
+ {0x000C, 0x0004},
+ {0x000D, 0x00E0},
+ {0x000F, 0x0801},
+ {0x0012, 0x0010},
+ /* keypad detection configuration */
+ {0x0013, 0x0280},
+ {0x0014, 0x7310},
+ {0x0015, 0x050E},
+ {0x0016, 0x1B2A},
+ /* audio format configuration */
+ {0x001A, 0x0800},
+ {0x001C, 0x000E},
+ {0x001D, 0x0010},
+ /* sampling rate control */
+ {0x002B, 0x0012},
+ /* DAC sampling rate control */
+ {0x002C, 0x0082},
+ /* ADC and DAC mixer control */
+ {0x0030, 0x00D2},
+ {0x0033, 0x00CF},
+ {0x0034, 0x02CF},
+ /* DAC class-G control */
+ {0x006A, 0x1003},
+ {0x0050, 0x2007},
+ /* ADC PGA control */
+ {0x0072, 0x0260},
+ /* DAC power down enabled */
+ {0x0080, 0x03A0},
+ /* enable DAC clock */
+ {0x0073, 0x336C},
+ /* enable MIC Bias */
+ {0x0074, 0x5502},
+ /* powerup output driver */
+ {0x007F, 0x473C},
+ {0x007F, 0x473F},
+ /* DAC power down disabled */
+ {0x0080, 0x00A0},
+ /* adjust MIC Bias */
+ {0x0066, 0x2060},
+ {0x0066, 0x2060},
+ {0x0066, 0x0060},
+};
+
+static int nau8825_codec_remove(struct snd_soc_codec *codec)
+{
+ struct nau8825_priv *nau8825 = snd_soc_codec_get_drvdata(codec);
+
+ regmap_write(nau8825->regmap, NAU8825_RESET, 0);
+ regmap_write(nau8825->regmap, NAU8825_RESET, 1);
+ return 0;
+}
+
+static const struct snd_soc_codec_driver soc_codec_driver_nau8825 = {
+
+ .remove = nau8825_codec_remove,
+ .suspend_bias_off = true,
+ .set_bias_level = nau8825_set_bias_level,
+ .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 bool nau8825_readable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case NAU8825_RESET:
+ case NAU8825_ENA_CTRL:
+ case NAU8825_CLK_EN:
+ case NAU8825_CLK_DIVIDER:
+ case NAU8825_FLL_1:
+ case NAU8825_FLL_2:
+ case NAU8825_FLL_3:
+ case NAU8825_FLL_4:
+ case NAU8825_FLL_5:
+ case NAU8825_FLL_6:
+ case NAU8825_HEADSET_CTRL:
+ case NAU8825_JACK_DET_CTRL:
+ case NAU8825_IRQ_MASK:
+ case NAU8825_IRQ_STATUS:
+ case NAU8825_IRQ_CLEAR:
+ case NAU8825_IRQ_CTRL:
+ case NAU8825_SAR_ADC:
+ case NAU8825_VDET_COEFFICIENT:
+ case NAU8825_VDET_THRESHOLD_1:
+ case NAU8825_VDET_THRESHOLD_2:
+ case NAU8825_GPIO2_CTRL:
+ case NAU8825_I2S_PCM_CTRL_1:
+ case NAU8825_I2S_PCM_CTRL_2:
+ case NAU8825_ADC_RATE:
+ case NAU8825_DAC_CTRL1:
+ case NAU8825_DAC_CTRL2:
+ case NAU8825_ADC_DGAIN_CTRL:
+ case NAU8825_DAC_MUTE_CTRL:
+ case NAU8825_HSVOL_CTRL:
+ case NAU8825_DACL_CTRL:
+ case NAU8825_DACR_CTRL:
+ case NAU8825_SAR_ADC_OUTPUT:
+ case NAU8825_ANALOG_CTRL_2:
+ case NAU8825_ANALOG_ADC_1:
+ case NAU8825_ANALOG_ADC_2:
+ case NAU8825_DAC_CTRL:
+ case NAU8825_MIC_BIAS:
+ case NAU8825_BOOST:
+ case NAU8825_CLASS_G_CTRL:
+ case NAU8825_BIAS_ADJ:
+ case NAU8825_POWER_UP_CTRL:
+ case NAU8825_CHARGE_BUMP_CTRL:
+ case NAU8825_CHARGE_BUMP_RD:
+ case NAU8825_GENERAL_STATUS:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool nau8825_volatile_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case NAU8825_RESET:
+ case NAU8825_ENA_CTRL:
+ case NAU8825_CLK_EN:
+ case NAU8825_CLK_DIVIDER:
+ case NAU8825_FLL_1:
+ case NAU8825_FLL_2:
+ case NAU8825_FLL_3:
+ case NAU8825_FLL_4:
+ case NAU8825_FLL_5:
+ case NAU8825_FLL_6:
+ case NAU8825_HEADSET_CTRL:
+ case NAU8825_JACK_DET_CTRL:
+ case NAU8825_IRQ_MASK:
+ case NAU8825_IRQ_CLEAR:
+ case NAU8825_IRQ_CTRL:
+ case NAU8825_SAR_ADC:
+ case NAU8825_VDET_COEFFICIENT:
+ case NAU8825_VDET_THRESHOLD_1:
+ case NAU8825_VDET_THRESHOLD_2:
+ case NAU8825_GPIO2_CTRL:
+ case NAU8825_I2S_PCM_CTRL_1:
+ case NAU8825_I2S_PCM_CTRL_2:
+ case NAU8825_ADC_RATE:
+ case NAU8825_DAC_CTRL1:
+ case NAU8825_DAC_CTRL2:
+ case NAU8825_ADC_DGAIN_CTRL:
+ case NAU8825_DAC_MUTE_CTRL:
+ case NAU8825_HSVOL_CTRL:
+ case NAU8825_DACL_CTRL:
+ case NAU8825_DACR_CTRL:
+ case NAU8825_SAR_ADC_OUTPUT:
+ case NAU8825_ANALOG_CTRL_2:
+ case NAU8825_ANALOG_ADC_1:
+ case NAU8825_ANALOG_ADC_2:
+ case NAU8825_DAC_CTRL:
+ case NAU8825_MIC_BIAS:
+ case NAU8825_BOOST:
+ case NAU8825_CLASS_G_CTRL:
+ case NAU8825_BIAS_ADJ:
+ case NAU8825_POWER_UP_CTRL:
+ case NAU8825_CHARGE_BUMP_CTRL:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config nau8825_regmap = {
+ .reg_bits = 16,
+ .val_bits = 16,
+ .use_single_rw = true,
+ .max_register = NAU8825_MAX_REGISTER,
+ .volatile_reg = nau8825_volatile_register,
+ .readable_reg = nau8825_readable_register,
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults = nau8825_reg,
+ .num_reg_defaults = ARRAY_SIZE(nau8825_reg),
+};
+
+static const struct snd_soc_dai_ops nau8825_dai_ops = {
+ .hw_params = nau8825_hw_params,
+ .set_sysclk = nau8825_dai_set_sysclk,
+ .set_fmt = nau8825_set_dai_fmt,
+ .digital_mute = nau8825_dac_mute,
+};
+
+static struct snd_soc_dai_driver nau8825_dai_driver[] = {
+ {
+ .name = "nau8825-aif1",
+ .playback = {
+ .stream_name = "AIF1 Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = NAU8825_RATES,
+ .formats = NAU8825_FORMATS,
+ },
+ .capture = {
+ .stream_name = "AIF1 Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = NAU8825_RATES,
+ .formats = NAU8825_FORMATS,
+ },
+ .ops = &nau8825_dai_ops,
+ }
+};
+
+
+static int nau8825_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *i2c_id)
+{
+ struct nau8825_priv *nau8825;
+ int i, ret;
+
+ nau8825 = devm_kzalloc(&i2c->dev, sizeof(*nau8825),
+ GFP_KERNEL);
+ if (nau8825 == NULL)
+ return -ENOMEM;
+ nau8825->i2c = i2c;
+ i2c_set_clientdata(i2c, nau8825);
+ nau8825->regmap = devm_regmap_init_i2c(i2c, &nau8825_regmap);
+ if (IS_ERR(nau8825->regmap)) {
+ ret = PTR_ERR(nau8825->regmap);
+ dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
+ goto err_enable;
+ }
+ /* software reset */
+ regmap_write(nau8825->regmap, NAU8825_RESET, 0x01);
+ regmap_write(nau8825->regmap, NAU8825_RESET, 0x02);
+ /*writing initial register values to the codec*/
+ for (i = 0; i < ARRAY_SIZE(nau8825_reg); i++)
+ regmap_write(nau8825->regmap, nau8825_reg[i].reg,
+ nau8825_reg[i].def);
+
+ ret = snd_soc_register_codec(&i2c->dev, &soc_codec_driver_nau8825,
+ nau8825_dai_driver,
+ ARRAY_SIZE(nau8825_dai_driver));
+err_enable:
+ return ret;
+}
+
+static int nau8825_i2c_remove(struct i2c_client *i2c)
+{
+ snd_soc_unregister_codec(&i2c->dev);
+ return 0;
+}
+
+static const struct i2c_device_id nau8825_i2c_id[] = {
+ {"nau8825", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, nau8825_i2c_id);
+
+static const struct acpi_device_id nau8825_acpi_match[] = {
+ { "10508825", 0 },
+ {},
+};
+MODULE_DEVICE_TABLE(acpi, nau8825_acpi_match);
+
+static struct i2c_driver nau8825_i2c_driver = {
+ .driver = {
+ .name = "nau8825",
+ .owner = THIS_MODULE,
+ .acpi_match_table = ACPI_PTR(nau8825_acpi_match),
+ },
+ .probe = nau8825_i2c_probe,
+ .remove = (nau8825_i2c_remove),
+ .id_table = nau8825_i2c_id,
+};
+module_i2c_driver(nau8825_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC NAU8825 codec driver");
+MODULE_AUTHOR("Nuvoton");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/codecs/nau8825.h b/sound/soc/codecs/nau8825.h
new file mode 100644
index 0000000..8f22e39
--- /dev/null
+++ b/sound/soc/codecs/nau8825.h
@@ -0,0 +1,170 @@
+/*
+ * nau8825.h
+ *
+ * Copyright 2015 Nuvoton Technology Corp.
+ * Author: Meng-Huang Kuo <mhkuo@nuvoton.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.
+ */
+
+#ifndef _NAU8825_H
+#define _NAU8825_H
+
+#define NAU8825_RESET 0x00
+#define NAU8825_ENA_CTRL 0x01
+#define NAU8825_CLK_EN 0x02
+#define NAU8825_CLK_DIVIDER 0x03
+#define NAU8825_FLL_1 0x04
+#define NAU8825_FLL_2 0x05
+#define NAU8825_FLL_3 0x06
+#define NAU8825_FLL_4 0x07
+#define NAU8825_FLL_5 0x08
+#define NAU8825_FLL_6 0x09
+#define NAU8825_HEADSET_CTRL 0x0C
+#define NAU8825_JACK_DET_CTRL 0x0D
+#define NAU8825_IRQ_MASK 0x0F
+#define NAU8825_IRQ_STATUS 0x10
+#define NAU8825_IRQ_CLEAR 0x11
+#define NAU8825_IRQ_CTRL 0x12
+#define NAU8825_SAR_ADC 0x13
+#define NAU8825_VDET_COEFFICIENT 0x14
+#define NAU8825_VDET_THRESHOLD_1 0x15
+#define NAU8825_VDET_THRESHOLD_2 0x16
+#define NAU8825_GPIO2_CTRL 0x1A
+#define NAU8825_I2S_PCM_CTRL_1 0x1C
+#define NAU8825_I2S_PCM_CTRL_2 0x1D
+#define NAU8825_ADC_RATE 0x2B
+#define NAU8825_DAC_CTRL1 0x2C
+#define NAU8825_DAC_CTRL2 0x2D
+#define NAU8825_ADC_DGAIN_CTRL 0x30
+#define NAU8825_DAC_MUTE_CTRL 0x31
+#define NAU8825_HSVOL_CTRL 0x32
+#define NAU8825_DACL_CTRL 0x33
+#define NAU8825_DACR_CTRL 0x34
+#define NAU8825_CLASS_G_CTRL 0x50
+#define NAU8825_SAR_ADC_OUTPUT 0x59
+#define NAU8825_BIAS_ADJ 0x66
+#define NAU8825_ANALOG_CTRL_2 0x6A
+#define NAU8825_ANALOG_ADC_1 0x71
+#define NAU8825_ANALOG_ADC_2 0x72
+#define NAU8825_DAC_CTRL 0x73
+#define NAU8825_MIC_BIAS 0x74
+#define NAU8825_BOOST 0x76
+#define NAU8825_POWER_UP_CTRL 0x7F
+#define NAU8825_CHARGE_BUMP_CTRL 0x80
+#define NAU8825_CHARGE_BUMP_RD 0x81
+#define NAU8825_GENERAL_STATUS 0x82
+#define NAU8825_MAX_REGISTER 0xFF
+
+/* reg. NAU8825_CLK_DIVIDER (0x03) */
+#define NAU8825_SYSCLK_EN_MASK (0x1 << 15)
+#define NAU8825_SYSCLK_EN (0x1 << 15)
+#define NAU8825_SYSCLK_DIS (0x0 << 15)
+#define NAU8825_CLK_MCLK_SRC_MASK (0xF << 0)
+
+/* reg. NAU8825_FLL_1 (0x04) */
+#define NAU8825_FLL_RATIO_MASK (0x7F << 0)
+
+/* reg. NAU8825_FLL_3 (0x06) */
+#define NAU8825_FLL_INTEGER_MASK (0x3FF << 0)
+
+/* reg. NAU8825_FLL_4 (0x07) */
+#define NAU8825_FLL_REF_DIV_MASK (0x3 << 10)
+
+/* reg. NAU8825_FLL_5 (0x08) */
+#define NAU8825_FLL_FILTER_SW_MASK (0x1 << 14)
+
+/* reg. NAU8825_FLL_6 (0x09) */
+#define NAU8825_DCO_EN_MASK (0x1 << 15)
+#define NAU8825_DCO_EN (0x1 << 15)
+#define NAU8825_DCO_DIS (0x0 << 15)
+#define NAU8825_SDM_EN_MASK (0x1 << 14)
+
+/* reg. NAU8825_I2S_PCM_CTRL_1 (0x1C) */
+#define NAU8825_I2S_BP_MASK (0x1 << 7)
+#define NAU8825_I2S_BP_INV (0x1 << 7)
+#define NAU8825_I2S_PCMB_MASK (0x1 << 6)
+#define NAU8825_I2S_PCMB_EN (0x1 << 6)
+#define NAU8825_I2S_DL_MASK (0x3 << 2)
+#define NAU8825_I2S_DF_MASK 0x3
+#define NAU8825_I2S_DF_RIGHT 0x0
+#define NAU8825_I2S_DF_LEFT 0x1
+#define NAU8825_I2S_DF_I2S 0x2
+#define NAU8825_I2S_DF_PCM_A 0x3
+#define NAU8825_I2S_DF_PCM_B 0x3
+
+/* reg. NAU8825_I2S_PCM_CTRL_2 (0x1D) */
+#define NAU8825_I2S_MS_MASK (0x1 << 3)
+
+/* reg. NAU8825_ADC_DGAIN_CTRL (0x30) */
+#define NAU8825_ADC_DGAIN_SFT 0
+
+/* reg. NAU8825_DAC_MUTE_CTRL (0x31) */
+#define NAU8825_SOFT_MUTE_MASK (0x1 << 13)
+#define NAU8825_SOFT_MUTE_EN (0x1 << 13)
+#define NAU8825_SOFT_MUTE_DIS (0x0 << 13)
+
+/* reg. NAU8825_HSVOL_CTRL (0x32) */
+#define NAU8825_R_MUTE (0x1 << 15)
+#define NAU8825_R_MUTE_SFT 15
+#define NAU8825_L_MUTE (0x1 << 14)
+#define NAU8825_L_MUTE_SFT 14
+#define NAU8825_L_HSVOL_SFT 6
+#define NAU8825_R_HSVOL_SFT 0
+
+/* reg. NAU8825_CLASS_G_CTRL (0x50) */
+#define NAU8825_CLASS_G_RIGHT_SHIFT 2
+#define NAU8825_CLASS_G_LEFT_SHIFT 1
+#define NAU8825_CLASS_G_SHIFT 0
+
+/* reg. NAU8825_BIAS_ADJ_2 (0x66) */
+#define NAU8825_VMID_MASK (0x1 << 6)
+#define NAU8825_VMID_EN (0x1 << 6)
+#define NAU8825_VMID_DIS (0x0 << 6)
+
+/* reg. NAU8825_ANALOG_CTRL_2 (0x6A) */
+#define NAU8825_VMID_MASK (0x1 << 6)
+#define NAU8825_VMID_EN (0x1 << 6)
+#define NAU8825_VMID_DIS (0x0 << 6)
+
+/* reg. NAU8825_DAC_CTRL (0x73) */
+#define NAU8825_DAC_R_SFT 13
+#define NAU8825_DAC_L_SFT 12
+#define NAU8825_DAC_CLK_R_SFT 9
+#define NAU8825_DAC_CLK_L_SFT 8
+
+/* reg. NAU8825_BOOST (0x76) */
+#define NAU8825_G_BIAS_MASK (0x1 << 12)
+#define NAU8825_G_BIAS_SFT 12
+#define NAU8825_G_BIAS_EN (0x1 << 12)
+#define NAU8825_G_BIAS_DIS (0x0 << 12)
+
+/* Volume Rescale */
+#define NAU8825_VOL_RSCL_RANGE 0x36
+#define NAU8825_ADC_VOL_RSCL_RANGE 0xFF
+
+/* Data format */
+#define NAU8825_I2S_DL_16 (0x0 << 2)
+#define NAU8825_I2S_DL_20 (0x1 << 2)
+#define NAU8825_I2S_DL_24 (0x2 << 2)
+#define NAU8825_I2S_DL_32 (0x3 << 2)
+
+enum {
+ NAU8825_INTERNALCLOCK = 0,
+ NAU8825_MCLK,
+};
+
+#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)
+
+struct nau8825_priv {
+ struct snd_soc_codec *codec;
+ struct regmap *regmap;
+ struct i2c_client *i2c;
+ struct snd_soc_jack *jack;
+ struct delayed_work jack_detect_work;
+};
+#endif /* _NAU8825_H */
--
1.9.3

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