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Subject[PATCH 03/10] Removed the secondary device initialization from the primary device initialization. Removed manual register configuration from devicetree
Date
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
---
Keeping seperate regmaps for each instance of the amplifier was not good idea. So this part has been removed.
Manual register configuration from devicetree was also removed.

sound/soc/codecs/max98927.c | 223 +++++++-------------------------------------
sound/soc/codecs/max98927.h | 14 +--
2 files changed, 33 insertions(+), 204 deletions(-)

diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index ae082ec..5627279c 100755
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -140,24 +140,6 @@ static struct reg_default max98927_reg[] = {
{MAX98927_R01FF_REV_ID, 0x40},
};

-void max98927_wrapper_write(struct max98927_priv *max98927,
- unsigned int reg, unsigned int val)
-{
- if (max98927->regmap)
- regmap_write(max98927->regmap, reg, val);
- if (max98927->sub_regmap)
- regmap_write(max98927->sub_regmap, reg, val);
-}
-
-void max98927_wrap_update_bits(struct max98927_priv *max98927,
- unsigned int reg, unsigned int mask, unsigned int val)
-{
- if (max98927->regmap)
- regmap_update_bits(max98927->regmap, reg, mask, val);
- if (max98927->sub_regmap)
- regmap_update_bits(max98927->sub_regmap, reg, mask, val);
-}
-
static int max98927_reg_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol, unsigned int reg,
unsigned int mask, unsigned int shift)
@@ -180,7 +162,7 @@ static int max98927_reg_put(struct snd_kcontrol *kcontrol,
struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
unsigned int sel = ucontrol->value.integer.value[0];

- max98927_wrap_update_bits(max98927, reg, mask, sel << shift);
+ 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;
@@ -196,20 +178,20 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai,
dev_dbg(codec->dev, "%s: fmt 0x%08X\n", __func__, fmt);
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS:
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R0021_PCM_MASTER_MODE,
MAX98927_PCM_MASTER_MODE_MASK,
MAX98927_PCM_MASTER_MODE_SLAVE);
break;
case SND_SOC_DAIFMT_CBM_CFM:
max98927->master = true;
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R0021_PCM_MASTER_MODE,
MAX98927_PCM_MASTER_MODE_MASK,
MAX98927_PCM_MASTER_MODE_MASTER);
break;
case SND_SOC_DAIFMT_CBS_CFM:
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R0021_PCM_MASTER_MODE,
MAX98927_PCM_MASTER_MODE_MASK,
MAX98927_PCM_MASTER_MODE_HYBRID);
@@ -233,13 +215,13 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai,
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
max98927->iface |= SND_SOC_DAIFMT_I2S;
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R0020_PCM_MODE_CFG,
max98927->iface, max98927->iface);
break;
case SND_SOC_DAIFMT_LEFT_J:
max98927->iface |= SND_SOC_DAIFMT_LEFT_J;
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R0020_PCM_MODE_CFG,
max98927->iface, max98927->iface);
break;
@@ -249,16 +231,16 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai,

/* pcm channel configuration */
if (max98927->iface & (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_LEFT_J)) {
- max98927_wrapper_write(max98927,
+ regmap_write(max98927->regmap,
MAX98927_R0018_PCM_RX_EN_A,
MAX98927_PCM_RX_CH0_EN|
MAX98927_PCM_RX_CH1_EN);
- max98927_wrapper_write(max98927,
+ regmap_write(max98927->regmap,
MAX98927_R0021_PCM_MASTER_MODE,
MAX98927_PCM_TX_CH0_EN|
MAX98927_PCM_TX_CH1_EN);
}
- max98927_wrap_update_bits(max98927, MAX98927_R0020_PCM_MODE_CFG,
+ regmap_update_bits(max98927->regmap, MAX98927_R0020_PCM_MODE_CFG,
MAX98927_PCM_MODE_CFG_PCM_BCLKEDGE, invert);
return 0;
}
@@ -291,7 +273,7 @@ static int max98927_set_clock(struct max98927_priv *max98927,
__func__);
return -EINVAL;
}
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R0021_PCM_MASTER_MODE,
MAX98927_PCM_MASTER_MODE_MCLK_MASK,
i << MAX98927_PCM_MASTER_MODE_MCLK_RATE_SHIFT);
@@ -310,7 +292,7 @@ static int max98927_set_clock(struct max98927_priv *max98927,
default:
return -EINVAL;
}
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
reg, mask, value);
return 0;
}
@@ -326,21 +308,21 @@ static int max98927_dai_hw_params(struct snd_pcm_substream *substream,
/* pcm mode configuration */
switch (snd_pcm_format_width(params_format(params))) {
case 16:
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R0020_PCM_MODE_CFG,
MAX98927_PCM_MODE_CFG_CHANSZ_16,
MAX98927_PCM_MODE_CFG_CHANSZ_16);
max98927->ch_size = 16;
break;
case 24:
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R0020_PCM_MODE_CFG,
MAX98927_PCM_MODE_CFG_CHANSZ_24,
MAX98927_PCM_MODE_CFG_CHANSZ_24);
max98927->ch_size = 24;
break;
case 32:
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R0020_PCM_MODE_CFG,
MAX98927_PCM_MODE_CFG_CHANSZ_32,
MAX98927_PCM_MODE_CFG_CHANSZ_32);
@@ -389,11 +371,11 @@ static int max98927_dai_hw_params(struct snd_pcm_substream *substream,
goto err;
}
/* set DAI_SR to correct LRCLK frequency */
- max98927_wrap_update_bits(max98927, MAX98927_R0023_PCM_SR_SETUP1,
+ regmap_update_bits(max98927->regmap, MAX98927_R0023_PCM_SR_SETUP1,
MAX98927_PCM_SR_SET1_SR_MASK, sampling_rate);
- max98927_wrap_update_bits(max98927, MAX98927_R0024_PCM_SR_SETUP2,
+ regmap_update_bits(max98927->regmap, MAX98927_R0024_PCM_SR_SETUP2,
MAX98927_PCM_SR_SET2_SR_MASK, sampling_rate<<4);
- max98927_wrap_update_bits(max98927, MAX98927_R0024_PCM_SR_SETUP2,
+ 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:
@@ -421,42 +403,6 @@ static const struct snd_soc_dai_ops max98927_dai_ops = {
.hw_params = max98927_dai_hw_params,
};

-static void max98927_handle_pdata(struct snd_soc_codec *codec)
-{
- struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
- struct max98927_reg_default *regInfo;
- int cfg_size = 0;
- int x;
-
- if (max98927->regcfg != NULL)
- cfg_size = max98927->regcfg_sz / sizeof(uint32_t);
-
- if (cfg_size <= 0) {
- dev_dbg(codec->dev,
- "Register configuration is not required.\n");
- return;
- }
-
- /* direct configuration from device tree */
- for (x = 0; x < cfg_size; x += 3) {
- regInfo = (struct max98927_reg_default *)&max98927->regcfg[x];
- dev_info(codec->dev, "CH:%d, reg:0x%02x, value:0x%02x\n",
- be32_to_cpu(regInfo->ch),
- be32_to_cpu(regInfo->reg),
- be32_to_cpu(regInfo->def));
- if (be32_to_cpu(regInfo->ch) == 0 /* Primary amp */
- && max98927->regmap)
- regmap_write(max98927->regmap,
- be32_to_cpu(regInfo->reg),
- be32_to_cpu(regInfo->def));
- else if (be32_to_cpu(regInfo->ch) == 1 /* Secondary amp */
- && max98927->sub_regmap)
- regmap_write(max98927->sub_regmap,
- be32_to_cpu(regInfo->reg),
- be32_to_cpu(regInfo->def));
- }
-}
-
static int max98927_dac_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
@@ -465,31 +411,31 @@ static int max98927_dac_event(struct snd_soc_dapm_widget *w,

switch (event) {
case SND_SOC_DAPM_POST_PMU:
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R003A_AMP_EN, 1, 1);
/* enable the v and i for vi feedback */
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R003E_MEAS_EN,
MAX98927_MEAS_V_EN,
MAX98927_MEAS_V_EN);
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R003E_MEAS_EN,
MAX98927_MEAS_I_EN,
MAX98927_MEAS_I_EN);
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_GLOBAL_EN_MASK, 1, 1);
break;
case SND_SOC_DAPM_POST_PMD:
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R00FF_GLOBAL_SHDN, 1, 0);
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R003A_AMP_EN, 1, 0);
/* disable the v and i for vi feedback */
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R003E_MEAS_EN,
MAX98927_MEAS_V_EN,
0);
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R003E_MEAS_EN,
MAX98927_MEAS_I_EN,
0);
@@ -531,7 +477,7 @@ static int max98927_spk_gain_put(struct snd_kcontrol *kcontrol,
unsigned int sel = ucontrol->value.integer.value[0];

if (sel < ((1 << MAX98927_Speaker_Gain_Width) - 1)) {
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R003C_SPK_GAIN,
MAX98927_SPK_PCM_GAIN_MASK, sel);
max98927->spk_gain = sel;
@@ -559,7 +505,7 @@ static int max98927_digital_gain_put(struct snd_kcontrol *kcontrol,
unsigned int sel = ucontrol->value.integer.value[0];

if (sel < ((1 << MAX98927_AMP_VOL_WIDTH) - 1)) {
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R0036_AMP_VOL_CTRL,
MAX98927_AMP_VOL_MASK, sel);
max98927->digital_gain = sel;
@@ -792,17 +738,17 @@ static struct snd_soc_dai_driver max98927_dai[] = {
static int max98927_probe(struct snd_soc_codec *codec)
{
struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
- int ret = 0, reg = 0, i;
+ int ret = 0, reg = 0;

max98927->codec = codec;
codec->control_data = max98927->regmap;
codec->cache_bypass = 1;

/* Software Reset */
- max98927_wrapper_write(max98927,
+ regmap_write(max98927->regmap,
MAX98927_R0100_SOFT_RESET, MAX98927_SOFT_RESET);

- /* Check Revision ID for the primary MAX98927*/
+ /* Check Revision ID */
ret = regmap_read(max98927->regmap,
MAX98927_R01FF_REV_ID, &reg);
if (ret < 0)
@@ -812,25 +758,6 @@ static int max98927_probe(struct snd_soc_codec *codec)
dev_info(codec->dev,
"MAX98927 revisionID: 0x%02X\n", reg);

- /* Check Revision ID for the secondary MAX98927*/
- if (max98927->sub_regmap) {
- ret = regmap_read(max98927->sub_regmap,
- MAX98927_R01FF_REV_ID, &reg);
- if (ret < 0)
- dev_err(codec->dev,
- "Failed to read: 0x%02X from secodnary device\n"
- , MAX98927_R01FF_REV_ID);
- else
- dev_info(codec->dev,
- "Secondary device revisionID: 0x%02X\n", reg);
- }
-
- /* Register initialization */
- for (i = 0; i < sizeof(max98927_reg)/
- sizeof(max98927_reg[0]); i++)
- max98927_wrapper_write(max98927,
- max98927_reg[i].reg,
- max98927_reg[i].def);

if (max98927->regmap)
regmap_write(max98927->regmap,
@@ -838,22 +765,13 @@ static int max98927_probe(struct snd_soc_codec *codec)
(max98927->i_l_slot
<<MAX98927_PCM_TX_CH_SRC_A_I_SHIFT|
max98927->v_l_slot)&0xFF);
- if (max98927->sub_regmap)
- regmap_write(max98927->sub_regmap,
- MAX98927_R001E_PCM_TX_CH_SRC_A,
- (max98927->i_r_slot
- <<MAX98927_PCM_TX_CH_SRC_A_I_SHIFT|
- max98927->v_r_slot)&0xFF);

/* Set interleave mode */
if (max98927->interleave_mode)
- max98927_wrap_update_bits(max98927,
+ regmap_update_bits(max98927->regmap,
MAX98927_R001F_PCM_TX_CH_SRC_B,
MAX98927_PCM_TX_CH_INTERLEAVE_MASK,
MAX98927_PCM_TX_CH_INTERLEAVE_MASK);
-
- max98927_handle_pdata(codec);
-
return ret;
}

@@ -879,36 +797,6 @@ static const struct regmap_config max98927_regmap = {
.cache_type = REGCACHE_RBTREE,
};

-static struct i2c_board_info max98927_i2c_sub_board[] = {
- {
- I2C_BOARD_INFO("max98927_sub", 0x39),
- }
-};
-
-static struct i2c_driver max98927_i2c_sub_driver = {
- .driver = {
- .name = "max98927_sub",
- .owner = THIS_MODULE,
- },
-};
-
-struct i2c_client *max98927_add_sub_device(int bus_id, int slave_addr)
-{
- struct i2c_client *i2c = NULL;
- struct i2c_adapter *adapter;
-
- max98927_i2c_sub_board[0].addr = slave_addr;
-
- adapter = i2c_get_adapter(bus_id);
- if (adapter) {
- i2c = i2c_new_device(adapter, max98927_i2c_sub_board);
- if (i2c)
- i2c->dev.driver = &max98927_i2c_sub_driver.driver;
- }
-
- return i2c;
-}
-
int probe_common(struct i2c_client *i2c, struct max98927_priv *max98927)
{
int ret = 0, value;
@@ -921,14 +809,6 @@ int probe_common(struct i2c_client *i2c, struct max98927_priv *max98927)
max98927->i_l_slot = value & 0xF;
else
max98927->i_l_slot = 1;
- if (!of_property_read_u32(i2c->dev.of_node, "vmon-r-slot", &value))
- max98927->v_r_slot = value & 0xF;
- else
- max98927->v_r_slot = 2;
- if (!of_property_read_u32(i2c->dev.of_node, "imon-r-slot", &value))
- max98927->i_r_slot = value & 0xF;
- else
- max98927->i_r_slot = 3;

ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_max98927,
max98927_dai, ARRAY_SIZE(max98927_dai));
@@ -964,25 +844,7 @@ static int max98927_i2c_probe(struct i2c_client *i2c,
} else
max98927->interleave_mode = 0;

- /* update direct configuration info */
- max98927->regcfg = of_get_property(i2c->dev.of_node,
- "maxim,regcfg", &max98927->regcfg_sz);
-
- /* check for secondary MAX98927 */
- ret = of_property_read_u32(i2c->dev.of_node,
- "maxim,sub_reg", &max98927->sub_reg);
- if (ret) {
- dev_err(&i2c->dev, "Sub-device slave address was not found.\n");
- max98927->sub_reg = -1;
- }
- ret = of_property_read_u32(i2c->dev.of_node,
- "maxim,sub_bus", &max98927->sub_bus);
- if (ret) {
- dev_err(&i2c->dev, "Sub-device bus information was not found.\n");
- max98927->sub_bus = i2c->adapter->nr;
- }
-
- /* regmap initialization for primary device */
+ /* regmap initialization */
max98927->regmap
= devm_regmap_init_i2c(i2c, &max98927_regmap);
if (IS_ERR(max98927->regmap)) {
@@ -992,27 +854,6 @@ static int max98927_i2c_probe(struct i2c_client *i2c,
goto err;
}

- /* regmap initialization for secondary device */
- if (max98927->sub_reg > 0) {
- max98927->sub_i2c = max98927_add_sub_device(max98927->sub_bus,
- max98927->sub_reg);
- if (IS_ERR(max98927->sub_i2c)) {
- dev_err(&max98927->sub_i2c->dev,
- "Second MAX98927 was not found\n");
- ret = PTR_ERR(max98927->regmap);
- goto err;
- } else {
- max98927->sub_regmap = regmap_init_i2c(
- max98927->sub_i2c, &max98927_regmap);
- if (IS_ERR(max98927->sub_regmap)) {
- ret = PTR_ERR(max98927->sub_regmap);
- dev_err(&max98927->sub_i2c->dev,
- "Failed to allocate sub_regmap: %d\n",
- ret);
- goto err;
- }
- }
- }

/* codec registeration */
ret = probe_common(i2c, max98927);
diff --git a/sound/soc/codecs/max98927.h b/sound/soc/codecs/max98927.h
index 0d8daa5..2de8504 100755
--- a/sound/soc/codecs/max98927.h
+++ b/sound/soc/codecs/max98927.h
@@ -249,33 +249,21 @@
/* MAX98927_R00FF_GLOBAL_SHDN */
#define MAX98927_GLOBAL_EN_MASK (0x1 << 0)

-struct max98927_reg_default {
- unsigned int ch;
- unsigned int reg;
- unsigned int def;
-};
struct max98927_priv {
struct regmap *regmap;
- struct regmap *sub_regmap;
struct snd_soc_codec *codec;
struct max98927_pdata *pdata;
- const uint32_t *regcfg;
- uint32_t regcfg_sz;
unsigned int spk_gain;
unsigned int sysclk;
unsigned int v_l_slot;
unsigned int i_l_slot;
- unsigned int v_r_slot;
- unsigned int i_r_slot;
bool interleave_mode;
unsigned int ch_size;
unsigned int rate;
unsigned int iface;
unsigned int master;
unsigned int digital_gain;
- struct i2c_client *sub_i2c;
- int sub_reg;
- int sub_bus;
};
#define MAX98927_Speaker_Gain_Width 3
+#define MAX98927_AMP_VOL_LOCATION_SHIFT 7
#endif
--
2.7.4
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