[PATCH] ASoC: Add support for Maxim Integrated MAX98927 Amplifier
From: Ryan Lee
Date: Sun Mar 19 2017 - 20:41:35 EST
Signed-off-by: Ryan Lee <ryans.lee@xxxxxxxxxxxxxxxxxxx>
---
Resubmit the intial version of MAX98927 driver. Added all fixes into the initial patch.
.../devicetree/bindings/sound/max98927.txt | 39 +
sound/soc/codecs/Kconfig | 5 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/max98927.c | 1040 ++++++++++++++++++++
sound/soc/codecs/max98927.h | 267 +++++
5 files changed, 1353 insertions(+)
create mode 100755 Documentation/devicetree/bindings/sound/max98927.txt
mode change 100644 => 100755 sound/soc/codecs/Kconfig
mode change 100644 => 100755 sound/soc/codecs/Makefile
create mode 100755 sound/soc/codecs/max98927.c
create mode 100755 sound/soc/codecs/max98927.h
diff --git a/Documentation/devicetree/bindings/sound/max98927.txt b/Documentation/devicetree/bindings/sound/max98927.txt
new file mode 100755
index 0000000..d610879
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/max98927.txt
@@ -0,0 +1,39 @@
+max98927 audio CODEC
+
+This device supports I2C.
+
+Required properties:
+
+ - compatible : "maxim,max98927"
+
+ - maxim,vmon-slot-no : slot number used to send voltage information
+ or in inteleave mode this will be used as
+ interleave slot.
+ This property can be set to values from 0 to 15 for slot 0 to 15.
+ Default value is 0.
+
+ - maxim,imon-slot-no : slot number used to send current information
+ This property can be set to values from 0 to 15 for slot 0 to 15.
+ Default value is 0.
+
+ - maxim,interleave-mode : When using two MAX98927 in a system it is
+ possible to create ADC data that that will
+ overflow the frame size. Digital Audio Interleave
+ mode provides a means to output VMON and IMON data
+ from two devices on a single DOUT line when running
+ smaller frames sizes such as 32 BCLKS per LRCLK or
+ 48 BCLKS per LRCLK.
+ This property can be set to values from 0 to 1 for off and on.
+ Default value is 0.
+
+ - reg : the I2C address of the device for I2C
+
+Example:
+
+codec: max98927@3a {
+ compatible = "maxim,max98927";
+ maxim,vmon-slot-no = <0>;
+ maxim,imon-slot-no = <1>;
+ maxim,interleave-mode = <0>;
+ reg = <0x3a>;
+};
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
old mode 100644
new mode 100755
index e49e9da..cbdc8aa
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -89,6 +89,7 @@ config SND_SOC_ALL_CODECS
select SND_SOC_MAX9867 if I2C
select SND_SOC_MAX98925 if I2C
select SND_SOC_MAX98926 if I2C
+ select SND_SOC_MAX98927 if I2C
select SND_SOC_MAX9850 if I2C
select SND_SOC_MAX9860 if I2C
select SND_SOC_MAX9768 if I2C
@@ -588,6 +589,10 @@ config SND_SOC_MAX98925
config SND_SOC_MAX98926
tristate
+config SND_SOC_MAX98927
+ tristate "Maxim Integrated MAX98927 Speaker Amplifier"
+ depends on I2C
+
config SND_SOC_MAX9850
tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
old mode 100644
new mode 100755
index 1796cb9..187a639
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -84,6 +84,7 @@ snd-soc-max98371-objs := max98371.o
snd-soc-max9867-objs := max9867.o
snd-soc-max98925-objs := max98925.o
snd-soc-max98926-objs := max98926.o
+snd-soc-max98927-objs := max98927.o
snd-soc-max9850-objs := max9850.o
snd-soc-max9860-objs := max9860.o
snd-soc-mc13783-objs := mc13783.o
@@ -313,6 +314,7 @@ obj-$(CONFIG_SND_SOC_MAX98357A) += snd-soc-max98357a.o
obj-$(CONFIG_SND_SOC_MAX9867) += snd-soc-max9867.o
obj-$(CONFIG_SND_SOC_MAX98925) += snd-soc-max98925.o
obj-$(CONFIG_SND_SOC_MAX98926) += snd-soc-max98926.o
+obj-$(CONFIG_SND_SOC_MAX98927) += snd-soc-max98927.o
obj-$(CONFIG_SND_SOC_MAX9850) += snd-soc-max9850.o
obj-$(CONFIG_SND_SOC_MAX9860) += snd-soc-max9860.o
obj-$(CONFIG_SND_SOC_MC13783) += snd-soc-mc13783.o
diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
new file mode 100755
index 0000000..daf4af7
--- /dev/null
+++ b/sound/soc/codecs/max98927.c
@@ -0,0 +1,1040 @@
+/*
+ * max98927.c -- MAX98927 ALSA Soc Audio driver
+ *
+ * Copyright (C) 2016 Maxim Integrated Products
+ * Author: Ryan Lee <ryans.lee@xxxxxxxxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/acpi.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/cdev.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+#include <sound/tlv.h>
+#include "max98927.h"
+
+static struct reg_default max98927_reg[] = {
+ {MAX98927_R0001_INT_RAW1, 0x00},
+ {MAX98927_R0002_INT_RAW2, 0x00},
+ {MAX98927_R0003_INT_RAW3, 0x00},
+ {MAX98927_R0004_INT_STATE1, 0x00},
+ {MAX98927_R0005_INT_STATE2, 0x00},
+ {MAX98927_R0006_INT_STATE3, 0x00},
+ {MAX98927_R0007_INT_FLAG1, 0x00},
+ {MAX98927_R0008_INT_FLAG2, 0x00},
+ {MAX98927_R0009_INT_FLAG3, 0x00},
+ {MAX98927_R000A_INT_EN1, 0x00},
+ {MAX98927_R000B_INT_EN2, 0x00},
+ {MAX98927_R000C_INT_EN3, 0x00},
+ {MAX98927_R000D_INT_FLAG_CLR1, 0x00},
+ {MAX98927_R000E_INT_FLAG_CLR2, 0x00},
+ {MAX98927_R000F_INT_FLAG_CLR3, 0x00},
+ {MAX98927_R0010_IRQ_CTRL, 0x00},
+ {MAX98927_R0011_CLK_MON, 0x00},
+ {MAX98927_R0012_WDOG_CTRL, 0x00},
+ {MAX98927_R0013_WDOG_RST, 0x00},
+ {MAX98927_R0014_MEAS_ADC_THERM_WARN_THRESH, 0x00},
+ {MAX98927_R0015_MEAS_ADC_THERM_SHDN_THRESH, 0x00},
+ {MAX98927_R0016_MEAS_ADC_THERM_HYSTERESIS, 0x00},
+ {MAX98927_R0017_PIN_CFG, 0x55},
+ {MAX98927_R0018_PCM_RX_EN_A, 0x00},
+ {MAX98927_R0019_PCM_RX_EN_B, 0x00},
+ {MAX98927_R001A_PCM_TX_EN_A, 0x00},
+ {MAX98927_R001B_PCM_TX_EN_B, 0x00},
+ {MAX98927_R001C_PCM_TX_HIZ_CTRL_A, 0x00},
+ {MAX98927_R001D_PCM_TX_HIZ_CTRL_B, 0x00},
+ {MAX98927_R001E_PCM_TX_CH_SRC_A, 0x00},
+ {MAX98927_R001F_PCM_TX_CH_SRC_B, 0x00},
+ {MAX98927_R0020_PCM_MODE_CFG, 0x40},
+ {MAX98927_R0021_PCM_MASTER_MODE, 0x00},
+ {MAX98927_R0022_PCM_CLK_SETUP, 0x22},
+ {MAX98927_R0023_PCM_SR_SETUP1, 0x00},
+ {MAX98927_R0024_PCM_SR_SETUP2, 0x00},
+ {MAX98927_R0025_PCM_TO_SPK_MONOMIX_A, 0x00},
+ {MAX98927_R0026_PCM_TO_SPK_MONOMIX_B, 0x00},
+ {MAX98927_R0027_ICC_RX_EN_A, 0x00},
+ {MAX98927_R0028_ICC_RX_EN_B, 0x00},
+ {MAX98927_R002B_ICC_TX_EN_A, 0x00},
+ {MAX98927_R002C_ICC_TX_EN_B, 0x00},
+ {MAX98927_R002E_ICC_HIZ_MANUAL_MODE, 0x00},
+ {MAX98927_R002F_ICC_TX_HIZ_EN_A, 0x00},
+ {MAX98927_R0030_ICC_TX_HIZ_EN_B, 0x00},
+ {MAX98927_R0031_ICC_LNK_EN, 0x00},
+ {MAX98927_R0032_PDM_TX_EN, 0x00},
+ {MAX98927_R0033_PDM_TX_HIZ_CTRL, 0x00},
+ {MAX98927_R0034_PDM_TX_CTRL, 0x00},
+ {MAX98927_R0035_PDM_RX_CTRL, 0x00},
+ {MAX98927_R0036_AMP_VOL_CTRL, 0x00},
+ {MAX98927_R0037_AMP_DSP_CFG, 0x02},
+ {MAX98927_R0038_TONE_GEN_DC_CFG, 0x00},
+ {MAX98927_R0039_DRE_CTRL, 0x01},
+ {MAX98927_R003A_AMP_EN, 0x00},
+ {MAX98927_R003B_SPK_SRC_SEL, 0x00},
+ {MAX98927_R003C_SPK_GAIN, 0x00},
+ {MAX98927_R003D_SSM_CFG, 0x01},
+ {MAX98927_R003E_MEAS_EN, 0x00},
+ {MAX98927_R003F_MEAS_DSP_CFG, 0x04},
+ {MAX98927_R0040_BOOST_CTRL0, 0x00},
+ {MAX98927_R0041_BOOST_CTRL3, 0x00},
+ {MAX98927_R0042_BOOST_CTRL1, 0x00},
+ {MAX98927_R0043_MEAS_ADC_CFG, 0x00},
+ {MAX98927_R0044_MEAS_ADC_BASE_MSB, 0x00},
+ {MAX98927_R0045_MEAS_ADC_BASE_LSB, 0x00},
+ {MAX98927_R0046_ADC_CH0_DIVIDE, 0x00},
+ {MAX98927_R0047_ADC_CH1_DIVIDE, 0x00},
+ {MAX98927_R0048_ADC_CH2_DIVIDE, 0x00},
+ {MAX98927_R0049_ADC_CH0_FILT_CFG, 0x00},
+ {MAX98927_R004A_ADC_CH1_FILT_CFG, 0x00},
+ {MAX98927_R004B_ADC_CH2_FILT_CFG, 0x00},
+ {MAX98927_R004C_MEAS_ADC_CH0_READ, 0x00},
+ {MAX98927_R004D_MEAS_ADC_CH1_READ, 0x00},
+ {MAX98927_R004E_MEAS_ADC_CH2_READ, 0x00},
+ {MAX98927_R0051_BROWNOUT_STATUS, 0x00},
+ {MAX98927_R0052_BROWNOUT_EN, 0x00},
+ {MAX98927_R0053_BROWNOUT_INFINITE_HOLD, 0x00},
+ {MAX98927_R0054_BROWNOUT_INFINITE_HOLD_CLR, 0x00},
+ {MAX98927_R0055_BROWNOUT_LVL_HOLD, 0x00},
+ {MAX98927_R005A_BROWNOUT_LVL1_THRESH, 0x00},
+ {MAX98927_R005B_BROWNOUT_LVL2_THRESH, 0x00},
+ {MAX98927_R005C_BROWNOUT_LVL3_THRESH, 0x00},
+ {MAX98927_R005D_BROWNOUT_LVL4_THRESH, 0x00},
+ {MAX98927_R005E_BROWNOUT_THRESH_HYSTERYSIS, 0x00},
+ {MAX98927_R005F_BROWNOUT_AMP_LIMITER_ATK_REL, 0x00},
+ {MAX98927_R0060_BROWNOUT_AMP_GAIN_ATK_REL, 0x00},
+ {MAX98927_R0061_BROWNOUT_AMP1_CLIP_MODE, 0x00},
+ {MAX98927_R0072_BROWNOUT_LVL1_CUR_LIMIT, 0x00},
+ {MAX98927_R0073_BROWNOUT_LVL1_AMP1_CTRL1, 0x00},
+ {MAX98927_R0074_BROWNOUT_LVL1_AMP1_CTRL2, 0x00},
+ {MAX98927_R0075_BROWNOUT_LVL1_AMP1_CTRL3, 0x00},
+ {MAX98927_R0076_BROWNOUT_LVL2_CUR_LIMIT, 0x00},
+ {MAX98927_R0077_BROWNOUT_LVL2_AMP1_CTRL1, 0x00},
+ {MAX98927_R0078_BROWNOUT_LVL2_AMP1_CTRL2, 0x00},
+ {MAX98927_R0079_BROWNOUT_LVL2_AMP1_CTRL3, 0x00},
+ {MAX98927_R007A_BROWNOUT_LVL3_CUR_LIMIT, 0x00},
+ {MAX98927_R007B_BROWNOUT_LVL3_AMP1_CTRL1, 0x00},
+ {MAX98927_R007C_BROWNOUT_LVL3_AMP1_CTRL2, 0x00},
+ {MAX98927_R007D_BROWNOUT_LVL3_AMP1_CTRL3, 0x00},
+ {MAX98927_R007E_BROWNOUT_LVL4_CUR_LIMIT, 0x00},
+ {MAX98927_R007F_BROWNOUT_LVL4_AMP1_CTRL1, 0x00},
+ {MAX98927_R0080_BROWNOUT_LVL4_AMP1_CTRL2, 0x00},
+ {MAX98927_R0081_BROWNOUT_LVL4_AMP1_CTRL3, 0x00},
+ {MAX98927_R0082_ENV_TRACK_VOUT_HEADROOM, 0x00},
+ {MAX98927_R0083_ENV_TRACK_BOOST_VOUT_DELAY, 0x00},
+ {MAX98927_R0084_ENV_TRACK_REL_RATE, 0x00},
+ {MAX98927_R0085_ENV_TRACK_HOLD_RATE, 0x00},
+ {MAX98927_R0086_ENV_TRACK_CTRL, 0x00},
+ {MAX98927_R0087_ENV_TRACK_BOOST_VOUT_READ, 0x00},
+ {MAX98927_R00FF_GLOBAL_SHDN, 0x00},
+ {MAX98927_R0100_SOFT_RESET, 0x00},
+ {MAX98927_R01FF_REV_ID, 0x40},
+};
+
+static int max98927_reg_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol, unsigned int reg,
+ unsigned int mask, unsigned int shift)
+{
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+ int data;
+
+ regmap_read(max98927->regmap, reg, &data);
+ ucontrol->value.integer.value[0] = (data & mask) >> shift;
+ return 0;
+}
+
+static int max98927_reg_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol, unsigned int reg,
+ unsigned int mask, unsigned int shift)
+{
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+ unsigned int sel = ucontrol->value.integer.value[0];
+
+ regmap_update_bits(max98927->regmap, reg, mask, sel << shift);
+ dev_dbg(codec->dev, "%s: register 0x%02X, value 0x%02X\n",
+ __func__, reg, sel);
+ return 0;
+}
+
+static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+ unsigned int mode = 0;
+ unsigned int invert = 0;
+
+ dev_dbg(codec->dev, "%s: fmt 0x%08X\n", __func__, fmt);
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ mode = MAX98927_PCM_MASTER_MODE_SLAVE;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ max98927->master = true;
+ mode = MAX98927_PCM_MASTER_MODE_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFM:
+ mode = MAX98927_PCM_MASTER_MODE_HYBRID;
+ default:
+ dev_err(codec->dev, "DAI clock mode unsupported");
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0021_PCM_MASTER_MODE,
+ MAX98927_PCM_MASTER_MODE_MASK,
+ mode);
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ invert = MAX98927_PCM_MODE_CFG_PCM_BCLKEDGE;
+ break;
+ default:
+ dev_err(codec->dev, "DAI invert mode unsupported");
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0020_PCM_MODE_CFG,
+ MAX98927_PCM_MODE_CFG_PCM_BCLKEDGE,
+ invert);
+
+ /* interface format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ max98927->iface |= SND_SOC_DAIFMT_I2S;
+
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ max98927->iface |= SND_SOC_DAIFMT_LEFT_J;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0020_PCM_MODE_CFG,
+ max98927->iface, max98927->iface);
+
+ /* pcm channel configuration */
+ if (max98927->iface & (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_LEFT_J))
+ regmap_write(max98927->regmap,
+ MAX98927_R0018_PCM_RX_EN_A,
+ MAX98927_PCM_RX_CH0_EN|
+ MAX98927_PCM_RX_CH1_EN);
+
+ return 0;
+}
+
+/* codec MCLK rate in master mode */
+static const int rate_table[] = {
+ 5644800, 6000000, 6144000, 6500000,
+ 9600000, 11289600, 12000000, 12288000,
+ 13000000, 19200000,
+};
+
+static int max98927_set_clock(struct max98927_priv *max98927,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_codec *codec = max98927->codec;
+ /* BCLK/LRCLK ratio calculation */
+ int blr_clk_ratio = params_channels(params) * max98927->ch_size;
+ int reg = MAX98927_R0022_PCM_CLK_SETUP;
+ int mask = MAX98927_PCM_CLK_SETUP_BSEL_MASK;
+ int value;
+
+ if (max98927->master) {
+ int i;
+ /* match rate to closest value */
+ for (i = 0; i < ARRAY_SIZE(rate_table); i++) {
+ if (rate_table[i] >= max98927->sysclk)
+ break;
+ }
+ if (i == ARRAY_SIZE(rate_table)) {
+ dev_err(codec->dev, "failed to find proper clock rate.\n");
+ return -EINVAL;
+ }
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0021_PCM_MASTER_MODE,
+ MAX98927_PCM_MASTER_MODE_MCLK_MASK,
+ i << MAX98927_PCM_MASTER_MODE_MCLK_RATE_SHIFT);
+ }
+
+ switch (blr_clk_ratio) {
+ case 32:
+ value = 2;
+ break;
+ case 48:
+ value = 3;
+ break;
+ case 64:
+ value = 4;
+ break;
+ default:
+ return -EINVAL;
+ }
+ regmap_update_bits(max98927->regmap, reg, mask, value);
+ return 0;
+}
+
+static int max98927_dai_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+ unsigned int sampling_rate = 0;
+ unsigned int chan_sz = 0;
+
+ /* pcm mode configuration */
+ switch (snd_pcm_format_width(params_format(params))) {
+ case 16:
+ chan_sz = MAX98927_PCM_MODE_CFG_CHANSZ_16;
+ max98927->ch_size = 16;
+ break;
+ case 24:
+ chan_sz = MAX98927_PCM_MODE_CFG_CHANSZ_24;
+ max98927->ch_size = 24;
+ break;
+ case 32:
+ chan_sz = MAX98927_PCM_MODE_CFG_CHANSZ_32;
+ max98927->ch_size = 32;
+ break;
+ default:
+ dev_err(codec->dev, "format unsupported %d",
+ params_format(params));
+ goto err;
+ }
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0020_PCM_MODE_CFG,
+ MAX98927_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
+
+ dev_dbg(codec->dev, "format supported %d",
+ params_format(params));
+
+ /* sampling rate configuration */
+ switch (params_rate(params)) {
+ case 8000:
+ sampling_rate |= MAX98927_PCM_SR_SET1_SR_8000;
+ break;
+ case 11025:
+ sampling_rate |= MAX98927_PCM_SR_SET1_SR_11025;
+ break;
+ case 12000:
+ sampling_rate |= MAX98927_PCM_SR_SET1_SR_12000;
+ break;
+ case 16000:
+ sampling_rate |= MAX98927_PCM_SR_SET1_SR_16000;
+ break;
+ case 22050:
+ sampling_rate |= MAX98927_PCM_SR_SET1_SR_22050;
+ break;
+ case 24000:
+ sampling_rate |= MAX98927_PCM_SR_SET1_SR_24000;
+ break;
+ case 32000:
+ sampling_rate |= MAX98927_PCM_SR_SET1_SR_32000;
+ break;
+ case 44100:
+ sampling_rate |= MAX98927_PCM_SR_SET1_SR_44100;
+ break;
+ case 48000:
+ sampling_rate |= MAX98927_PCM_SR_SET1_SR_48000;
+ break;
+ default:
+ dev_err(codec->dev, "rate %d not supported\n",
+ params_rate(params));
+ goto err;
+ }
+ /* set DAI_SR to correct LRCLK frequency */
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0023_PCM_SR_SETUP1,
+ MAX98927_PCM_SR_SET1_SR_MASK,
+ sampling_rate);
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0024_PCM_SR_SETUP2,
+ MAX98927_PCM_SR_SET2_SR_MASK,
+ sampling_rate << MAX98927_PCM_SR_SET2_SR_SHIFT);
+
+ /* set sampling rate of IV */
+ if (max98927->interleave_mode &&
+ sampling_rate > MAX98927_PCM_SR_SET1_SR_16000)
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0024_PCM_SR_SETUP2,
+ MAX98927_PCM_SR_SET2_IVADC_SR_MASK,
+ sampling_rate - 3);
+ else
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0024_PCM_SR_SETUP2,
+ MAX98927_PCM_SR_SET2_IVADC_SR_MASK,
+ sampling_rate);
+ return max98927_set_clock(max98927, params);
+err:
+ return -EINVAL;
+}
+
+#define MAX98927_RATES SNDRV_PCM_RATE_8000_48000
+
+#define MAX98927_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+static int max98927_dai_set_sysclk(struct snd_soc_dai *dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+
+ max98927->sysclk = freq;
+ return 0;
+}
+
+static const struct snd_soc_dai_ops max98927_dai_ops = {
+ .set_sysclk = max98927_dai_set_sysclk,
+ .set_fmt = max98927_dai_set_fmt,
+ .hw_params = max98927_dai_hw_params,
+};
+
+static int max98927_dac_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 max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R003A_AMP_EN,
+ MAX98927_AMP_EN_MASK, 1);
+ /* enable VMON and IMON */
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R003E_MEAS_EN,
+ MAX98927_MEAS_V_EN | MAX98927_MEAS_I_EN,
+ MAX98927_MEAS_V_EN | MAX98927_MEAS_I_EN);
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R00FF_GLOBAL_SHDN,
+ MAX98927_GLOBAL_EN_MASK, 1);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R00FF_GLOBAL_SHDN,
+ MAX98927_GLOBAL_EN_MASK, 0);
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R003A_AMP_EN,
+ MAX98927_AMP_EN_MASK, 0);
+ /* disable VMON and IMON */
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R003E_MEAS_EN,
+ MAX98927_MEAS_V_EN | MAX98927_MEAS_I_EN, 0);
+ break;
+ default:
+ return 0;
+ }
+ return 0;
+}
+
+static const char * const max98927_switch_text[] = {
+ "Left", "Right", "LeftRight"};
+
+static const struct soc_enum dai_sel_enum =
+ SOC_ENUM_SINGLE(MAX98927_R0025_PCM_TO_SPK_MONOMIX_A,
+ MAX98927_PCM_TO_SPK_MONOMIX_CFG_SHIFT,
+ 3, max98927_switch_text);
+
+static const struct snd_kcontrol_new max98927_dai_controls =
+ SOC_DAPM_ENUM("DAI Sel", dai_sel_enum);
+
+static const struct snd_soc_dapm_widget max98927_dapm_widgets[] = {
+ SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_DAC_E("Amp Enable", "HiFi Playback", MAX98927_R003A_AMP_EN,
+ 0, 0, max98927_dac_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_MUX("DAI Sel Mux", SND_SOC_NOPM, 0, 0,
+ &max98927_dai_controls),
+ SND_SOC_DAPM_OUTPUT("BE_OUT"),
+};
+
+static DECLARE_TLV_DB_SCALE(max98927_spk_tlv, 300, 300, 0);
+static DECLARE_TLV_DB_SCALE(max98927_digital_tlv, -1600, 25, 0);
+
+static int max98927_spk_gain_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+
+ ucontrol->value.integer.value[0] = max98927->spk_gain;
+ dev_dbg(codec->dev, "%s: spk_gain setting returned %d\n", __func__,
+ (int) ucontrol->value.integer.value[0]);
+ return 0;
+}
+
+static int max98927_spk_gain_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+ unsigned int sel = ucontrol->value.integer.value[0];
+
+ /* Active range 0 ~ 6 */
+ if (sel > 6)
+ return -EINVAL;
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R003C_SPK_GAIN,
+ MAX98927_SPK_PCM_GAIN_MASK, sel);
+ max98927->spk_gain = sel;
+ return 0;
+}
+
+static int max98927_digital_gain_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+
+ ucontrol->value.integer.value[0] = max98927->digital_gain;
+ dev_dbg(codec->dev, "%s: digital_gain setting returned %d\n", __func__,
+ (int) ucontrol->value.integer.value[0]);
+ return 0;
+}
+
+static int max98927_digital_gain_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+ unsigned int sel = ucontrol->value.integer.value[0];
+
+ /* Active range 0 ~ 0x7F */
+ if (sel < 128) {
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0036_AMP_VOL_CTRL,
+ MAX98927_AMP_VOL_MASK, sel);
+ max98927->digital_gain = sel;
+ }
+ return 0;
+}
+
+static int max98927_boost_voltage_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_get(kcontrol, ucontrol,
+ MAX98927_R0040_BOOST_CTRL0,
+ MAX98927_BOOST_CTRL0_VOUT_MASK, 0);
+}
+
+static int max98927_boost_voltage_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_put(kcontrol, ucontrol,
+ MAX98927_R0040_BOOST_CTRL0,
+ MAX98927_BOOST_CTRL0_VOUT_MASK, 0);
+}
+
+static int max98927_amp_vol_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_get(kcontrol, ucontrol,
+ MAX98927_R0036_AMP_VOL_CTRL,
+ MAX98927_AMP_VOL_SEL,
+ MAX98927_AMP_VOL_SHIFT);
+}
+
+static int max98927_amp_vol_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_put(kcontrol, ucontrol,
+ MAX98927_R0036_AMP_VOL_CTRL,
+ MAX98927_AMP_VOL_SEL,
+ MAX98927_AMP_VOL_SHIFT);
+}
+
+static int max98927_amp_dsp_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_put(kcontrol, ucontrol,
+ MAX98927_R0052_BROWNOUT_EN,
+ MAX98927_BROWNOUT_DSP_EN,
+ MAX98927_BROWNOUT_DSP_SHIFT);
+}
+
+static int max98927_amp_dsp_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_get(kcontrol, ucontrol,
+ MAX98927_R0052_BROWNOUT_EN,
+ MAX98927_BROWNOUT_DSP_EN,
+ MAX98927_BROWNOUT_DSP_SHIFT);
+}
+
+static int max98927_ramp_switch_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_put(kcontrol, ucontrol,
+ MAX98927_R0037_AMP_DSP_CFG,
+ MAX98927_AMP_DSP_CFG_RMP_BYPASS,
+ MAX98927_AMP_DSP_CFG_RMP_SHIFT);
+}
+static int max98927_ramp_switch_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_get(kcontrol, ucontrol,
+ MAX98927_R0037_AMP_DSP_CFG,
+ MAX98927_AMP_DSP_CFG_RMP_BYPASS,
+ MAX98927_AMP_DSP_CFG_RMP_SHIFT);
+}
+
+static int max98927_dre_en_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_put(kcontrol, ucontrol,
+ MAX98927_R0039_DRE_CTRL,
+ MAX98927_DRE_CTRL_DRE_EN, 0);
+}
+static int max98927_dre_en_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_get(kcontrol, ucontrol,
+ MAX98927_R0039_DRE_CTRL,
+ MAX98927_DRE_CTRL_DRE_EN, 0);
+}
+static int max98927_spk_src_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_get(kcontrol, ucontrol,
+ MAX98927_R003B_SPK_SRC_SEL,
+ MAX98927_SPK_SRC_MASK, 0);
+}
+
+static int max98927_spk_src_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_put(kcontrol, ucontrol,
+ MAX98927_R003B_SPK_SRC_SEL,
+ MAX98927_SPK_SRC_MASK, 0);
+}
+
+static int max98927_mono_out_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_get(kcontrol, ucontrol,
+ MAX98927_R0025_PCM_TO_SPK_MONOMIX_A,
+ MAX98927_PCM_TO_SPK_MONOMIX_CFG_MASK,
+ MAX98927_PCM_TO_SPK_MONOMIX_CFG_SHIFT);
+}
+
+static int max98927_mono_out_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return max98927_reg_put(kcontrol, ucontrol,
+ MAX98927_R0025_PCM_TO_SPK_MONOMIX_A,
+ MAX98927_PCM_TO_SPK_MONOMIX_CFG_MASK,
+ MAX98927_PCM_TO_SPK_MONOMIX_CFG_SHIFT);
+}
+
+static bool max98927_readable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case MAX98927_R0001_INT_RAW1 ... MAX98927_R0028_ICC_RX_EN_B:
+ case MAX98927_R002B_ICC_TX_EN_A ... MAX98927_R002C_ICC_TX_EN_B:
+ case MAX98927_R002E_ICC_HIZ_MANUAL_MODE
+ ... MAX98927_R004E_MEAS_ADC_CH2_READ:
+ case MAX98927_R0051_BROWNOUT_STATUS
+ ... MAX98927_R0055_BROWNOUT_LVL_HOLD:
+ case MAX98927_R005A_BROWNOUT_LVL1_THRESH
+ ... MAX98927_R0061_BROWNOUT_AMP1_CLIP_MODE:
+ case MAX98927_R0072_BROWNOUT_LVL1_CUR_LIMIT
+ ... MAX98927_R0087_ENV_TRACK_BOOST_VOUT_READ:
+ case MAX98927_R00FF_GLOBAL_SHDN:
+ case MAX98927_R0100_SOFT_RESET:
+ case MAX98927_R01FF_REV_ID:
+ return true;
+ }
+ return false;
+};
+
+static bool max98927_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case MAX98927_R0001_INT_RAW1 ... MAX98927_R0009_INT_FLAG3:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const char * const max98927_boost_voltage_text[] = {
+ "6.5V", "6.625V", "6.75V", "6.875V", "7V", "7.125V", "7.25V", "7.375V",
+ "7.5V", "7.625V", "7.75V", "7.875V", "8V", "8.125V", "8.25V", "8.375V",
+ "8.5V", "8.625V", "8.75V", "8.875V", "9V", "9.125V", "9.25V", "9.375V",
+ "9.5V", "9.625V", "9.75V", "9.875V", "10V"
+};
+
+static const char * const max98927_speaker_source_text[] = {
+ "i2s", "reserved", "tone", "pdm"
+};
+
+static const char * const max98927_monomix_output_text[] = {
+ "ch_0", "ch_1", "ch_1_2_div"
+};
+
+static const struct soc_enum max98927_enum[] = {
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(max98927_monomix_output_text),
+ max98927_monomix_output_text),
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(max98927_speaker_source_text),
+ max98927_speaker_source_text),
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(max98927_boost_voltage_text),
+ max98927_boost_voltage_text),
+};
+
+static const struct snd_kcontrol_new max98927_snd_controls[] = {
+ SOC_SINGLE_EXT_TLV("Speaker Volume",
+ MAX98927_R003C_SPK_GAIN,
+ 0, 6, 0,
+ max98927_spk_gain_get, max98927_spk_gain_put,
+ max98927_spk_tlv),
+ SOC_SINGLE_EXT_TLV("Digital Gain",
+ MAX98927_R0036_AMP_VOL_CTRL,
+ 0, (1<<MAX98927_AMP_VOL_WIDTH)-1, 0,
+ max98927_digital_gain_get, max98927_digital_gain_put,
+ max98927_digital_tlv),
+ SOC_SINGLE_EXT("Amp DSP Enable",
+ MAX98927_R0052_BROWNOUT_EN,
+ MAX98927_BROWNOUT_DSP_SHIFT, 1, 0,
+ max98927_amp_dsp_get, max98927_amp_dsp_put),
+ SOC_SINGLE_EXT("Ramp Switch",
+ MAX98927_R0037_AMP_DSP_CFG,
+ MAX98927_AMP_DSP_CFG_RMP_SHIFT, 1, 1,
+ max98927_ramp_switch_get, max98927_ramp_switch_put),
+ SOC_SINGLE_EXT("DRE EN",
+ MAX98927_R0039_DRE_CTRL,
+ MAX98927_DRE_EN_SHIFT, 1, 0,
+ max98927_dre_en_get, max98927_dre_en_put),
+ SOC_SINGLE_EXT("Amp Volume Location",
+ MAX98927_R0036_AMP_VOL_CTRL,
+ MAX98927_AMP_VOL_SEL_SHIFT, 1, 0,
+ max98927_amp_vol_get, max98927_amp_vol_put),
+ SOC_ENUM_EXT("Boost Output Voltage", max98927_enum[2],
+ max98927_boost_voltage_get, max98927_boost_voltage_put),
+ SOC_ENUM_EXT("Speaker Source", max98927_enum[1],
+ max98927_spk_src_get, max98927_spk_src_put),
+ SOC_ENUM_EXT("Monomix Output", max98927_enum[0],
+ max98927_mono_out_get, max98927_mono_out_put),
+};
+
+static const struct snd_soc_dapm_route max98927_audio_map[] = {
+ {"Amp Enable", NULL, "DAI_OUT"},
+ {"DAI Sel Mux", "Left", "Amp Enable"},
+ {"DAI Sel Mux", "Right", "Amp Enable"},
+ {"DAI Sel Mux", "LeftRight", "Amp Enable"},
+ {"BE_OUT", NULL, "DAI Sel Mux"},
+};
+
+static struct snd_soc_dai_driver max98927_dai[] = {
+ {
+ .name = "max98927-aif1",
+ .playback = {
+ .stream_name = "HiFi Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = MAX98927_RATES,
+ .formats = MAX98927_FORMATS,
+ },
+ .capture = {
+ .stream_name = "HiFi Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = MAX98927_RATES,
+ .formats = MAX98927_FORMATS,
+ },
+ .ops = &max98927_dai_ops,
+ }
+};
+
+static int max98927_probe(struct snd_soc_codec *codec)
+{
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+ int ret = 0, reg = 0;
+
+ max98927->codec = codec;
+ codec->control_data = max98927->regmap;
+ codec->cache_bypass = 1;
+
+ /* Software Reset */
+ regmap_write(max98927->regmap,
+ MAX98927_R0100_SOFT_RESET, MAX98927_SOFT_RESET);
+
+ /* Check Revision ID */
+ ret = regmap_read(max98927->regmap,
+ MAX98927_R01FF_REV_ID, ®);
+ if (ret < 0)
+ dev_err(codec->dev,
+ "Failed to read: 0x%02X\n", MAX98927_R01FF_REV_ID);
+ else
+ dev_info(codec->dev,
+ "MAX98927 revisionID: 0x%02X\n", reg);
+
+ /* IV default slot configuration */
+ regmap_write(max98927->regmap,
+ MAX98927_R001C_PCM_TX_HIZ_CTRL_A,
+ 0xFF);
+ regmap_write(max98927->regmap,
+ MAX98927_R001D_PCM_TX_HIZ_CTRL_B,
+ 0xFF);
+ regmap_write(max98927->regmap,
+ MAX98927_R0025_PCM_TO_SPK_MONOMIX_A,
+ 0x80);
+ regmap_write(max98927->regmap,
+ MAX98927_R0026_PCM_TO_SPK_MONOMIX_B,
+ 0x1);
+ /* Set inital volume (+13dB) */
+ regmap_write(max98927->regmap,
+ MAX98927_R0036_AMP_VOL_CTRL,
+ 0x38);
+ regmap_write(max98927->regmap,
+ MAX98927_R003C_SPK_GAIN,
+ 0x05);
+ /* Enable DC blocker */
+ regmap_write(max98927->regmap,
+ MAX98927_R0037_AMP_DSP_CFG,
+ 0x03);
+ /* Enable IMON VMON DC blocker */
+ regmap_write(max98927->regmap,
+ MAX98927_R003F_MEAS_DSP_CFG,
+ 0xF7);
+ /* Boost Output Voltage & Current limit */
+ regmap_write(max98927->regmap,
+ MAX98927_R0040_BOOST_CTRL0,
+ 0x1C);
+ regmap_write(max98927->regmap,
+ MAX98927_R0042_BOOST_CTRL1,
+ 0x3E);
+ /* Measurement ADC config */
+ regmap_write(max98927->regmap,
+ MAX98927_R0043_MEAS_ADC_CFG,
+ 0x04);
+ regmap_write(max98927->regmap,
+ MAX98927_R0044_MEAS_ADC_BASE_MSB,
+ 0x00);
+ regmap_write(max98927->regmap,
+ MAX98927_R0045_MEAS_ADC_BASE_LSB,
+ 0x24);
+ /* Brownout Level */
+ regmap_write(max98927->regmap,
+ MAX98927_R007F_BROWNOUT_LVL4_AMP1_CTRL1,
+ 0x06);
+ /* Envelope Tracking configuration */
+ regmap_write(max98927->regmap,
+ MAX98927_R0082_ENV_TRACK_VOUT_HEADROOM,
+ 0x08);
+ regmap_write(max98927->regmap,
+ MAX98927_R0086_ENV_TRACK_CTRL,
+ 0x01);
+ regmap_write(max98927->regmap,
+ MAX98927_R0087_ENV_TRACK_BOOST_VOUT_READ,
+ 0x10);
+
+ /* voltage, current slot configuration */
+ regmap_write(max98927->regmap,
+ MAX98927_R001E_PCM_TX_CH_SRC_A,
+ (max98927->i_l_slot<<MAX98927_PCM_TX_CH_SRC_A_I_SHIFT|
+ max98927->v_l_slot)&0xFF);
+
+ if (max98927->v_l_slot < 8) {
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R001C_PCM_TX_HIZ_CTRL_A,
+ 1 << max98927->v_l_slot, 0);
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R001A_PCM_TX_EN_A,
+ 1 << max98927->v_l_slot,
+ 1 << max98927->v_l_slot);
+ } else {
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R001D_PCM_TX_HIZ_CTRL_B,
+ 1 << (max98927->v_l_slot - 8), 0);
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R001B_PCM_TX_EN_B,
+ 1 << (max98927->v_l_slot - 8),
+ 1 << (max98927->v_l_slot - 8));
+ }
+
+ if (max98927->i_l_slot < 8) {
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R001C_PCM_TX_HIZ_CTRL_A,
+ 1 << max98927->i_l_slot, 0);
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R001A_PCM_TX_EN_A,
+ 1 << max98927->i_l_slot,
+ 1 << max98927->i_l_slot);
+ } else {
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R001D_PCM_TX_HIZ_CTRL_B,
+ 1 << (max98927->i_l_slot - 8), 0);
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R001B_PCM_TX_EN_B,
+ 1 << (max98927->i_l_slot - 8),
+ 1 << (max98927->i_l_slot - 8));
+ }
+
+ /* Set interleave mode */
+ if (max98927->interleave_mode)
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R001F_PCM_TX_CH_SRC_B,
+ MAX98927_PCM_TX_CH_INTERLEAVE_MASK,
+ MAX98927_PCM_TX_CH_INTERLEAVE_MASK);
+ return ret;
+}
+
+static const struct snd_soc_codec_driver soc_codec_dev_max98927 = {
+ .probe = max98927_probe,
+ .component_driver = {
+ .controls = max98927_snd_controls,
+ .num_controls = ARRAY_SIZE(max98927_snd_controls),
+ .dapm_widgets = max98927_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(max98927_dapm_widgets),
+ .dapm_routes = max98927_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(max98927_audio_map),
+ },
+};
+
+static const struct regmap_config max98927_regmap = {
+ .reg_bits = 16,
+ .val_bits = 8,
+ .max_register = MAX98927_R01FF_REV_ID,
+ .reg_defaults = max98927_reg,
+ .num_reg_defaults = ARRAY_SIZE(max98927_reg),
+ .readable_reg = max98927_readable_register,
+ .volatile_reg = max98927_volatile_reg,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static void max98927_slot_config(struct i2c_client *i2c,
+ struct max98927_priv *max98927)
+{
+ int value;
+
+ if (!of_property_read_u32(i2c->dev.of_node,
+ "maxim,vmon-slot-no", &value))
+ max98927->v_l_slot = value & 0xF;
+ else
+ max98927->v_l_slot = 0;
+ if (!of_property_read_u32(i2c->dev.of_node,
+ "maxim,imon-slot-no", &value))
+ max98927->i_l_slot = value & 0xF;
+ else
+ max98927->i_l_slot = 1;
+}
+
+static int max98927_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+
+ int ret = 0, value;
+ struct max98927_priv *max98927 = NULL;
+
+ max98927 = devm_kzalloc(&i2c->dev,
+ sizeof(*max98927), GFP_KERNEL);
+
+ if (!max98927) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ i2c_set_clientdata(i2c, max98927);
+
+ /* update interleave mode info */
+ if (!of_property_read_u32(i2c->dev.of_node,
+ "maxim,interleave_mode", &value)) {
+ if (value > 0)
+ max98927->interleave_mode = 1;
+ else
+ max98927->interleave_mode = 0;
+ } else
+ max98927->interleave_mode = 0;
+
+ /* regmap initialization */
+ max98927->regmap
+ = devm_regmap_init_i2c(i2c, &max98927_regmap);
+ if (IS_ERR(max98927->regmap)) {
+ ret = PTR_ERR(max98927->regmap);
+ dev_err(&i2c->dev,
+ "Failed to allocate regmap: %d\n", ret);
+ goto err;
+ }
+
+ /* voltage/current slot configuration */
+ max98927_slot_config(i2c, max98927);
+
+ /* codec registeration */
+ ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_max98927,
+ max98927_dai, ARRAY_SIZE(max98927_dai));
+ if (ret < 0)
+ dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
+
+ return ret;
+
+err:
+ if (max98927)
+ devm_kfree(&i2c->dev, max98927);
+ return ret;
+}
+
+static int max98927_i2c_remove(struct i2c_client *client)
+{
+ snd_soc_unregister_codec(&client->dev);
+ return 0;
+}
+
+static const struct i2c_device_id max98927_i2c_id[] = {
+ { "max98927", 0},
+ { },
+};
+
+MODULE_DEVICE_TABLE(i2c, max98927_i2c_id);
+
+#if defined(CONFIG_OF)
+static const struct of_device_id max98927_of_match[] = {
+ { .compatible = "maxim,max98927", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, max98927_of_match);
+#endif
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id max98927_acpi_match[] = {
+ { "MX98927", 0 },
+ {},
+};
+MODULE_DEVICE_TABLE(acpi, max98927_acpi_match);
+#endif
+
+static struct i2c_driver max98927_i2c_driver = {
+ .driver = {
+ .name = "max98927",
+ .of_match_table = of_match_ptr(max98927_of_match),
+ .acpi_match_table = ACPI_PTR(max98927_acpi_match),
+ .pm = NULL,
+ },
+ .probe = max98927_i2c_probe,
+ .remove = max98927_i2c_remove,
+ .id_table = max98927_i2c_id,
+};
+
+module_i2c_driver(max98927_i2c_driver)
+
+MODULE_DESCRIPTION("ALSA SoC MAX98927 driver");
+MODULE_AUTHOR("Ryan Lee <ryans.lee@xxxxxxxxxxxxxxxxxxx>");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/max98927.h b/sound/soc/codecs/max98927.h
new file mode 100755
index 0000000..e13e18a
--- /dev/null
+++ b/sound/soc/codecs/max98927.h
@@ -0,0 +1,267 @@
+/*
+ * max98927.h -- MAX98927 ALSA Soc Audio driver
+ *
+ * Copyright 2013-15 Maxim Integrated Products
+ * Author: Ryan Lee <ryans.lee@xxxxxxxxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+#ifndef _MAX98927_H
+#define _MAX98927_H
+
+/* Register Values */
+#define MAX98927_R0001_INT_RAW1 0x0001
+#define MAX98927_R0002_INT_RAW2 0x0002
+#define MAX98927_R0003_INT_RAW3 0x0003
+#define MAX98927_R0004_INT_STATE1 0x0004
+#define MAX98927_R0005_INT_STATE2 0x0005
+#define MAX98927_R0006_INT_STATE3 0x0006
+#define MAX98927_R0007_INT_FLAG1 0x0007
+#define MAX98927_R0008_INT_FLAG2 0x0008
+#define MAX98927_R0009_INT_FLAG3 0x0009
+#define MAX98927_R000A_INT_EN1 0x000A
+#define MAX98927_R000B_INT_EN2 0x000B
+#define MAX98927_R000C_INT_EN3 0x000C
+#define MAX98927_R000D_INT_FLAG_CLR1 0x000D
+#define MAX98927_R000E_INT_FLAG_CLR2 0x000E
+#define MAX98927_R000F_INT_FLAG_CLR3 0x000F
+#define MAX98927_R0010_IRQ_CTRL 0x0010
+#define MAX98927_R0011_CLK_MON 0x0011
+#define MAX98927_R0012_WDOG_CTRL 0x0012
+#define MAX98927_R0013_WDOG_RST 0x0013
+#define MAX98927_R0014_MEAS_ADC_THERM_WARN_THRESH 0x0014
+#define MAX98927_R0015_MEAS_ADC_THERM_SHDN_THRESH 0x0015
+#define MAX98927_R0016_MEAS_ADC_THERM_HYSTERESIS 0x0016
+#define MAX98927_R0017_PIN_CFG 0x0017
+#define MAX98927_R0018_PCM_RX_EN_A 0x0018
+#define MAX98927_R0019_PCM_RX_EN_B 0x0019
+#define MAX98927_R001A_PCM_TX_EN_A 0x001A
+#define MAX98927_R001B_PCM_TX_EN_B 0x001B
+#define MAX98927_R001C_PCM_TX_HIZ_CTRL_A 0x001C
+#define MAX98927_R001D_PCM_TX_HIZ_CTRL_B 0x001D
+#define MAX98927_R001E_PCM_TX_CH_SRC_A 0x001E
+#define MAX98927_R001F_PCM_TX_CH_SRC_B 0x001F
+#define MAX98927_R0020_PCM_MODE_CFG 0x0020
+#define MAX98927_R0021_PCM_MASTER_MODE 0x0021
+#define MAX98927_R0022_PCM_CLK_SETUP 0x0022
+#define MAX98927_R0023_PCM_SR_SETUP1 0x0023
+#define MAX98927_R0024_PCM_SR_SETUP2 0x0024
+#define MAX98927_R0025_PCM_TO_SPK_MONOMIX_A 0x0025
+#define MAX98927_R0026_PCM_TO_SPK_MONOMIX_B 0x0026
+#define MAX98927_R0027_ICC_RX_EN_A 0x0027
+#define MAX98927_R0028_ICC_RX_EN_B 0x0028
+#define MAX98927_R002B_ICC_TX_EN_A 0x002B
+#define MAX98927_R002C_ICC_TX_EN_B 0x002C
+#define MAX98927_R002E_ICC_HIZ_MANUAL_MODE 0x002E
+#define MAX98927_R002F_ICC_TX_HIZ_EN_A 0x002F
+#define MAX98927_R0030_ICC_TX_HIZ_EN_B 0x0030
+#define MAX98927_R0031_ICC_LNK_EN 0x0031
+#define MAX98927_R0032_PDM_TX_EN 0x0032
+#define MAX98927_R0033_PDM_TX_HIZ_CTRL 0x0033
+#define MAX98927_R0034_PDM_TX_CTRL 0x0034
+#define MAX98927_R0035_PDM_RX_CTRL 0x0035
+#define MAX98927_R0036_AMP_VOL_CTRL 0x0036
+#define MAX98927_R0037_AMP_DSP_CFG 0x0037
+#define MAX98927_R0038_TONE_GEN_DC_CFG 0x0038
+#define MAX98927_R0039_DRE_CTRL 0x0039
+#define MAX98927_R003A_AMP_EN 0x003A
+#define MAX98927_R003B_SPK_SRC_SEL 0x003B
+#define MAX98927_R003C_SPK_GAIN 0x003C
+#define MAX98927_R003D_SSM_CFG 0x003D
+#define MAX98927_R003E_MEAS_EN 0x003E
+#define MAX98927_R003F_MEAS_DSP_CFG 0x003F
+#define MAX98927_R0040_BOOST_CTRL0 0x0040
+#define MAX98927_R0041_BOOST_CTRL3 0x0041
+#define MAX98927_R0042_BOOST_CTRL1 0x0042
+#define MAX98927_R0043_MEAS_ADC_CFG 0x0043
+#define MAX98927_R0044_MEAS_ADC_BASE_MSB 0x0044
+#define MAX98927_R0045_MEAS_ADC_BASE_LSB 0x0045
+#define MAX98927_R0046_ADC_CH0_DIVIDE 0x0046
+#define MAX98927_R0047_ADC_CH1_DIVIDE 0x0047
+#define MAX98927_R0048_ADC_CH2_DIVIDE 0x0048
+#define MAX98927_R0049_ADC_CH0_FILT_CFG 0x0049
+#define MAX98927_R004A_ADC_CH1_FILT_CFG 0x004A
+#define MAX98927_R004B_ADC_CH2_FILT_CFG 0x004B
+#define MAX98927_R004C_MEAS_ADC_CH0_READ 0x004C
+#define MAX98927_R004D_MEAS_ADC_CH1_READ 0x004D
+#define MAX98927_R004E_MEAS_ADC_CH2_READ 0x004E
+#define MAX98927_R0051_BROWNOUT_STATUS 0x0051
+#define MAX98927_R0052_BROWNOUT_EN 0x0052
+#define MAX98927_R0053_BROWNOUT_INFINITE_HOLD 0x0053
+#define MAX98927_R0054_BROWNOUT_INFINITE_HOLD_CLR 0x0054
+#define MAX98927_R0055_BROWNOUT_LVL_HOLD 0x0055
+#define MAX98927_R005A_BROWNOUT_LVL1_THRESH 0x005A
+#define MAX98927_R005B_BROWNOUT_LVL2_THRESH 0x005B
+#define MAX98927_R005C_BROWNOUT_LVL3_THRESH 0x005C
+#define MAX98927_R005D_BROWNOUT_LVL4_THRESH 0x005D
+#define MAX98927_R005E_BROWNOUT_THRESH_HYSTERYSIS 0x005E
+#define MAX98927_R005F_BROWNOUT_AMP_LIMITER_ATK_REL 0x005F
+#define MAX98927_R0060_BROWNOUT_AMP_GAIN_ATK_REL 0x0060
+#define MAX98927_R0061_BROWNOUT_AMP1_CLIP_MODE 0x0061
+#define MAX98927_R0072_BROWNOUT_LVL1_CUR_LIMIT 0x0072
+#define MAX98927_R0073_BROWNOUT_LVL1_AMP1_CTRL1 0x0073
+#define MAX98927_R0074_BROWNOUT_LVL1_AMP1_CTRL2 0x0074
+#define MAX98927_R0075_BROWNOUT_LVL1_AMP1_CTRL3 0x0075
+#define MAX98927_R0076_BROWNOUT_LVL2_CUR_LIMIT 0x0076
+#define MAX98927_R0077_BROWNOUT_LVL2_AMP1_CTRL1 0x0077
+#define MAX98927_R0078_BROWNOUT_LVL2_AMP1_CTRL2 0x0078
+#define MAX98927_R0079_BROWNOUT_LVL2_AMP1_CTRL3 0x0079
+#define MAX98927_R007A_BROWNOUT_LVL3_CUR_LIMIT 0x007A
+#define MAX98927_R007B_BROWNOUT_LVL3_AMP1_CTRL1 0x007B
+#define MAX98927_R007C_BROWNOUT_LVL3_AMP1_CTRL2 0x007C
+#define MAX98927_R007D_BROWNOUT_LVL3_AMP1_CTRL3 0x007D
+#define MAX98927_R007E_BROWNOUT_LVL4_CUR_LIMIT 0x007E
+#define MAX98927_R007F_BROWNOUT_LVL4_AMP1_CTRL1 0x007F
+#define MAX98927_R0080_BROWNOUT_LVL4_AMP1_CTRL2 0x0080
+#define MAX98927_R0081_BROWNOUT_LVL4_AMP1_CTRL3 0x0081
+#define MAX98927_R0082_ENV_TRACK_VOUT_HEADROOM 0x0082
+#define MAX98927_R0083_ENV_TRACK_BOOST_VOUT_DELAY 0x0083
+#define MAX98927_R0084_ENV_TRACK_REL_RATE 0x0084
+#define MAX98927_R0085_ENV_TRACK_HOLD_RATE 0x0085
+#define MAX98927_R0086_ENV_TRACK_CTRL 0x0086
+#define MAX98927_R0087_ENV_TRACK_BOOST_VOUT_READ 0x0087
+#define MAX98927_R00FF_GLOBAL_SHDN 0x00FF
+#define MAX98927_R0100_SOFT_RESET 0x0100
+#define MAX98927_R01FF_REV_ID 0x01FF
+
+/* MAX98927_R0018_PCM_RX_EN_A */
+#define MAX98927_PCM_RX_CH0_EN (0x1 << 0)
+#define MAX98927_PCM_RX_CH1_EN (0x1 << 1)
+#define MAX98927_PCM_RX_CH2_EN (0x1 << 2)
+#define MAX98927_PCM_RX_CH3_EN (0x1 << 3)
+#define MAX98927_PCM_RX_CH4_EN (0x1 << 4)
+#define MAX98927_PCM_RX_CH5_EN (0x1 << 5)
+#define MAX98927_PCM_RX_CH6_EN (0x1 << 6)
+#define MAX98927_PCM_RX_CH7_EN (0x1 << 7)
+
+/* MAX98927_R001A_PCM_TX_EN_A */
+#define MAX98927_PCM_TX_CH0_EN (0x1 << 0)
+#define MAX98927_PCM_TX_CH1_EN (0x1 << 1)
+#define MAX98927_PCM_TX_CH2_EN (0x1 << 2)
+#define MAX98927_PCM_TX_CH3_EN (0x1 << 3)
+#define MAX98927_PCM_TX_CH4_EN (0x1 << 4)
+#define MAX98927_PCM_TX_CH5_EN (0x1 << 5)
+#define MAX98927_PCM_TX_CH6_EN (0x1 << 6)
+#define MAX98927_PCM_TX_CH7_EN (0x1 << 7)
+
+/* MAX98927_R001E_PCM_TX_CH_SRC_A */
+#define MAX98927_PCM_TX_CH_SRC_A_V_SHIFT (0)
+#define MAX98927_PCM_TX_CH_SRC_A_I_SHIFT (4)
+
+/* MAX98927_R001F_PCM_TX_CH_SRC_B */
+#define MAX98927_PCM_TX_CH_INTERLEAVE_MASK (0x1 << 5)
+
+/* MAX98927_R0020_PCM_MODE_CFG */
+#define MAX98927_PCM_MODE_CFG_PCM_BCLKEDGE (0x1 << 2)
+#define MAX98927_PCM_MODE_CFG_FORMAT_MASK (0x7 << 3)
+
+#define MAX98927_PCM_MODE_CFG_CHANSZ_MASK (0x3 << 6)
+#define MAX98927_PCM_MODE_CFG_CHANSZ_16 (0x1 << 6)
+#define MAX98927_PCM_MODE_CFG_CHANSZ_24 (0x2 << 6)
+#define MAX98927_PCM_MODE_CFG_CHANSZ_32 (0x3 << 6)
+
+/* MAX98927_R0021_PCM_MASTER_MODE */
+#define MAX98927_PCM_MASTER_MODE_MASK (0x3 << 0)
+#define MAX98927_PCM_MASTER_MODE_SLAVE (0x0 << 0)
+#define MAX98927_PCM_MASTER_MODE_MASTER (0x3 << 0)
+#define MAX98927_PCM_MASTER_MODE_HYBRID (0x1 << 0)
+
+#define MAX98927_PCM_MASTER_MODE_MCLK_MASK (0xF << 2)
+#define MAX98927_PCM_MASTER_MODE_MCLK_RATE_SHIFT (2)
+
+/* MAX98927_R0022_PCM_CLK_SETUP */
+#define MAX98927_PCM_CLK_SETUP_BSEL_MASK (0xF << 0)
+
+/* MAX98927_R0023_PCM_SR_SETUP1 */
+#define MAX98927_PCM_SR_SET1_SR_MASK (0xF << 0)
+
+#define MAX98927_PCM_SR_SET1_SR_8000 (0x0 << 0)
+#define MAX98927_PCM_SR_SET1_SR_11025 (0x1 << 0)
+#define MAX98927_PCM_SR_SET1_SR_12000 (0x2 << 0)
+#define MAX98927_PCM_SR_SET1_SR_16000 (0x3 << 0)
+#define MAX98927_PCM_SR_SET1_SR_22050 (0x4 << 0)
+#define MAX98927_PCM_SR_SET1_SR_24000 (0x5 << 0)
+#define MAX98927_PCM_SR_SET1_SR_32000 (0x6 << 0)
+#define MAX98927_PCM_SR_SET1_SR_44100 (0x7 << 0)
+#define MAX98927_PCM_SR_SET1_SR_48000 (0x8 << 0)
+
+/* MAX98927_R0024_PCM_SR_SETUP2 */
+#define MAX98927_PCM_SR_SET2_SR_MASK (0xF << 4)
+#define MAX98927_PCM_SR_SET2_SR_SHIFT (4)
+#define MAX98927_PCM_SR_SET2_IVADC_SR_MASK (0xf << 0)
+
+/* MAX98927_R0025_PCM_TO_SPK_MONOMIX_A */
+#define MAX98927_PCM_TO_SPK_MONOMIX_CFG_MASK (0x3 << 6)
+#define MAX98927_PCM_TO_SPK_MONOMIX_CFG_SHIFT (6)
+
+/* MAX98927_R0036_AMP_VOL_CTRL */
+#define MAX98927_AMP_VOL_SEL (0x1 << 7)
+#define MAX98927_AMP_VOL_SEL_WIDTH (1)
+#define MAX98927_AMP_VOL_SEL_SHIFT (7)
+#define MAX98927_AMP_VOL_MASK (0x7f << 0)
+#define MAX98927_AMP_VOL_WIDTH (7)
+#define MAX98927_AMP_VOL_SHIFT (0)
+
+/* MAX98927_R0037_AMP_DSP_CFG */
+#define MAX98927_AMP_DSP_CFG_DCBLK_EN (0x1 << 0)
+#define MAX98927_AMP_DSP_CFG_DITH_EN (0x1 << 1)
+#define MAX98927_AMP_DSP_CFG_RMP_BYPASS (0x1 << 4)
+#define MAX98927_AMP_DSP_CFG_DAC_INV (0x1 << 5)
+#define MAX98927_AMP_DSP_CFG_RMP_SHIFT (4)
+
+/* MAX98927_R0039_DRE_CTRL */
+#define MAX98927_DRE_CTRL_DRE_EN (0x1 << 0)
+#define MAX98927_DRE_EN_SHIFT 0x1
+
+/* MAX98927_R003A_AMP_EN */
+#define MAX98927_AMP_EN_MASK (0x1 << 0)
+
+/* MAX98927_R003B_SPK_SRC_SEL */
+#define MAX98927_SPK_SRC_MASK (0x3 << 0)
+
+/* MAX98927_R003C_SPK_GAIN */
+#define MAX98927_SPK_PCM_GAIN_MASK (0x7 << 0)
+#define MAX98927_SPK_PDM_GAIN_MASK (0x7 << 4)
+#define MAX98927_SPK_GAIN_WIDTH (3)
+
+/* MAX98927_R003E_MEAS_EN */
+#define MAX98927_MEAS_V_EN (0x1 << 0)
+#define MAX98927_MEAS_I_EN (0x1 << 1)
+
+/* MAX98927_R0040_BOOST_CTRL0 */
+#define MAX98927_BOOST_CTRL0_VOUT_MASK (0x1f << 0)
+#define MAX98927_BOOST_CTRL0_PVDD_MASK (0x1 << 7)
+#define MAX98927_BOOST_CTRL0_PVDD_EN_SHIFT (7)
+
+/* MAX98927_R0052_BROWNOUT_EN */
+#define MAX98927_BROWNOUT_BDE_EN (0x1 << 0)
+#define MAX98927_BROWNOUT_AMP_EN (0x1 << 1)
+#define MAX98927_BROWNOUT_DSP_EN (0x1 << 2)
+#define MAX98927_BROWNOUT_DSP_SHIFT (2)
+
+/* MAX98927_R0100_SOFT_RESET */
+#define MAX98927_SOFT_RESET (0x1 << 0)
+
+/* MAX98927_R00FF_GLOBAL_SHDN */
+#define MAX98927_GLOBAL_EN_MASK (0x1 << 0)
+
+struct max98927_priv {
+ struct regmap *regmap;
+ struct snd_soc_codec *codec;
+ struct max98927_pdata *pdata;
+ unsigned int spk_gain;
+ unsigned int sysclk;
+ unsigned int v_l_slot;
+ unsigned int i_l_slot;
+ bool interleave_mode;
+ unsigned int ch_size;
+ unsigned int rate;
+ unsigned int iface;
+ unsigned int master;
+ unsigned int digital_gain;
+};
+#endif
--
2.7.4