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Diffstat (limited to 'sound/soc/codecs/sta32x.c')
-rw-r--r--sound/soc/codecs/sta32x.c534
1 files changed, 338 insertions, 196 deletions
diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c
index 7e18200dd6a9..3a1343fa109b 100644
--- a/sound/soc/codecs/sta32x.c
+++ b/sound/soc/codecs/sta32x.c
@@ -24,8 +24,11 @@
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
+#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <sound/core.h>
@@ -102,6 +105,35 @@ static const struct reg_default sta32x_regs[] = {
{ 0x2c, 0x0c },
};
+static const struct regmap_range sta32x_write_regs_range[] = {
+ regmap_reg_range(STA32X_CONFA, STA32X_AUTO2),
+ regmap_reg_range(STA32X_C1CFG, STA32X_FDRC2),
+};
+
+static const struct regmap_range sta32x_read_regs_range[] = {
+ regmap_reg_range(STA32X_CONFA, STA32X_AUTO2),
+ regmap_reg_range(STA32X_C1CFG, STA32X_FDRC2),
+};
+
+static const struct regmap_range sta32x_volatile_regs_range[] = {
+ regmap_reg_range(STA32X_CFADDR2, STA32X_CFUD),
+};
+
+static const struct regmap_access_table sta32x_write_regs = {
+ .yes_ranges = sta32x_write_regs_range,
+ .n_yes_ranges = ARRAY_SIZE(sta32x_write_regs_range),
+};
+
+static const struct regmap_access_table sta32x_read_regs = {
+ .yes_ranges = sta32x_read_regs_range,
+ .n_yes_ranges = ARRAY_SIZE(sta32x_read_regs_range),
+};
+
+static const struct regmap_access_table sta32x_volatile_regs = {
+ .yes_ranges = sta32x_volatile_regs_range,
+ .n_yes_ranges = ARRAY_SIZE(sta32x_volatile_regs_range),
+};
+
/* regulator power supply names */
static const char *sta32x_supply_names[] = {
"Vdda", /* analog supply, 3.3VV */
@@ -122,6 +154,8 @@ struct sta32x_priv {
u32 coef_shadow[STA32X_COEF_COUNT];
struct delayed_work watchdog_work;
int shutdown;
+ struct gpio_desc *gpiod_nreset;
+ struct mutex coeff_lock;
};
static const DECLARE_TLV_DB_SCALE(mvol_tlv, -12700, 50, 1);
@@ -155,37 +189,32 @@ static const char *sta32x_limiter_release_rate[] = {
"0.5116", "0.1370", "0.0744", "0.0499", "0.0360", "0.0299",
"0.0264", "0.0208", "0.0198", "0.0172", "0.0147", "0.0137",
"0.0134", "0.0117", "0.0110", "0.0104" };
-
-static const unsigned int sta32x_limiter_ac_attack_tlv[] = {
- TLV_DB_RANGE_HEAD(2),
+static DECLARE_TLV_DB_RANGE(sta32x_limiter_ac_attack_tlv,
0, 7, TLV_DB_SCALE_ITEM(-1200, 200, 0),
8, 16, TLV_DB_SCALE_ITEM(300, 100, 0),
-};
+);
-static const unsigned int sta32x_limiter_ac_release_tlv[] = {
- TLV_DB_RANGE_HEAD(5),
+static DECLARE_TLV_DB_RANGE(sta32x_limiter_ac_release_tlv,
0, 0, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
1, 1, TLV_DB_SCALE_ITEM(-2900, 0, 0),
2, 2, TLV_DB_SCALE_ITEM(-2000, 0, 0),
3, 8, TLV_DB_SCALE_ITEM(-1400, 200, 0),
8, 16, TLV_DB_SCALE_ITEM(-700, 100, 0),
-};
+);
-static const unsigned int sta32x_limiter_drc_attack_tlv[] = {
- TLV_DB_RANGE_HEAD(3),
+static DECLARE_TLV_DB_RANGE(sta32x_limiter_drc_attack_tlv,
0, 7, TLV_DB_SCALE_ITEM(-3100, 200, 0),
8, 13, TLV_DB_SCALE_ITEM(-1600, 100, 0),
14, 16, TLV_DB_SCALE_ITEM(-1000, 300, 0),
-};
+);
-static const unsigned int sta32x_limiter_drc_release_tlv[] = {
- TLV_DB_RANGE_HEAD(5),
+static DECLARE_TLV_DB_RANGE(sta32x_limiter_drc_release_tlv,
0, 0, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
1, 2, TLV_DB_SCALE_ITEM(-3800, 200, 0),
3, 4, TLV_DB_SCALE_ITEM(-3300, 200, 0),
5, 12, TLV_DB_SCALE_ITEM(-3000, 200, 0),
13, 16, TLV_DB_SCALE_ITEM(-1500, 300, 0),
-};
+);
static SOC_ENUM_SINGLE_DECL(sta32x_drc_ac_enum,
STA32X_CONFD, STA32X_CONFD_DRC_SHIFT,
@@ -244,29 +273,42 @@ static int sta32x_coefficient_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
int numcoef = kcontrol->private_value >> 16;
int index = kcontrol->private_value & 0xffff;
- unsigned int cfud;
- int i;
+ unsigned int cfud, val;
+ int i, ret = 0;
+
+ mutex_lock(&sta32x->coeff_lock);
/* preserve reserved bits in STA32X_CFUD */
- cfud = snd_soc_read(codec, STA32X_CFUD) & 0xf0;
- /* chip documentation does not say if the bits are self clearing,
- * so do it explicitly */
- snd_soc_write(codec, STA32X_CFUD, cfud);
+ regmap_read(sta32x->regmap, STA32X_CFUD, &cfud);
+ cfud &= 0xf0;
+ /*
+ * chip documentation does not say if the bits are self clearing,
+ * so do it explicitly
+ */
+ regmap_write(sta32x->regmap, STA32X_CFUD, cfud);
- snd_soc_write(codec, STA32X_CFADDR2, index);
- if (numcoef == 1)
- snd_soc_write(codec, STA32X_CFUD, cfud | 0x04);
- else if (numcoef == 5)
- snd_soc_write(codec, STA32X_CFUD, cfud | 0x08);
- else
- return -EINVAL;
- for (i = 0; i < 3 * numcoef; i++)
- ucontrol->value.bytes.data[i] =
- snd_soc_read(codec, STA32X_B1CF1 + i);
+ regmap_write(sta32x->regmap, STA32X_CFADDR2, index);
+ if (numcoef == 1) {
+ regmap_write(sta32x->regmap, STA32X_CFUD, cfud | 0x04);
+ } else if (numcoef == 5) {
+ regmap_write(sta32x->regmap, STA32X_CFUD, cfud | 0x08);
+ } else {
+ ret = -EINVAL;
+ goto exit_unlock;
+ }
- return 0;
+ for (i = 0; i < 3 * numcoef; i++) {
+ regmap_read(sta32x->regmap, STA32X_B1CF1 + i, &val);
+ ucontrol->value.bytes.data[i] = val;
+ }
+
+exit_unlock:
+ mutex_unlock(&sta32x->coeff_lock);
+
+ return ret;
}
static int sta32x_coefficient_put(struct snd_kcontrol *kcontrol,
@@ -280,24 +322,27 @@ static int sta32x_coefficient_put(struct snd_kcontrol *kcontrol,
int i;
/* preserve reserved bits in STA32X_CFUD */
- cfud = snd_soc_read(codec, STA32X_CFUD) & 0xf0;
- /* chip documentation does not say if the bits are self clearing,
- * so do it explicitly */
- snd_soc_write(codec, STA32X_CFUD, cfud);
+ regmap_read(sta32x->regmap, STA32X_CFUD, &cfud);
+ cfud &= 0xf0;
+ /*
+ * chip documentation does not say if the bits are self clearing,
+ * so do it explicitly
+ */
+ regmap_write(sta32x->regmap, STA32X_CFUD, cfud);
- snd_soc_write(codec, STA32X_CFADDR2, index);
+ regmap_write(sta32x->regmap, STA32X_CFADDR2, index);
for (i = 0; i < numcoef && (index + i < STA32X_COEF_COUNT); i++)
sta32x->coef_shadow[index + i] =
(ucontrol->value.bytes.data[3 * i] << 16)
| (ucontrol->value.bytes.data[3 * i + 1] << 8)
| (ucontrol->value.bytes.data[3 * i + 2]);
for (i = 0; i < 3 * numcoef; i++)
- snd_soc_write(codec, STA32X_B1CF1 + i,
- ucontrol->value.bytes.data[i]);
+ regmap_write(sta32x->regmap, STA32X_B1CF1 + i,
+ ucontrol->value.bytes.data[i]);
if (numcoef == 1)
- snd_soc_write(codec, STA32X_CFUD, cfud | 0x01);
+ regmap_write(sta32x->regmap, STA32X_CFUD, cfud | 0x01);
else if (numcoef == 5)
- snd_soc_write(codec, STA32X_CFUD, cfud | 0x02);
+ regmap_write(sta32x->regmap, STA32X_CFUD, cfud | 0x02);
else
return -EINVAL;
@@ -311,20 +356,23 @@ static int sta32x_sync_coef_shadow(struct snd_soc_codec *codec)
int i;
/* preserve reserved bits in STA32X_CFUD */
- cfud = snd_soc_read(codec, STA32X_CFUD) & 0xf0;
+ regmap_read(sta32x->regmap, STA32X_CFUD, &cfud);
+ cfud &= 0xf0;
for (i = 0; i < STA32X_COEF_COUNT; i++) {
- snd_soc_write(codec, STA32X_CFADDR2, i);
- snd_soc_write(codec, STA32X_B1CF1,
- (sta32x->coef_shadow[i] >> 16) & 0xff);
- snd_soc_write(codec, STA32X_B1CF2,
- (sta32x->coef_shadow[i] >> 8) & 0xff);
- snd_soc_write(codec, STA32X_B1CF3,
- (sta32x->coef_shadow[i]) & 0xff);
- /* chip documentation does not say if the bits are
- * self-clearing, so do it explicitly */
- snd_soc_write(codec, STA32X_CFUD, cfud);
- snd_soc_write(codec, STA32X_CFUD, cfud | 0x01);
+ regmap_write(sta32x->regmap, STA32X_CFADDR2, i);
+ regmap_write(sta32x->regmap, STA32X_B1CF1,
+ (sta32x->coef_shadow[i] >> 16) & 0xff);
+ regmap_write(sta32x->regmap, STA32X_B1CF2,
+ (sta32x->coef_shadow[i] >> 8) & 0xff);
+ regmap_write(sta32x->regmap, STA32X_B1CF3,
+ (sta32x->coef_shadow[i]) & 0xff);
+ /*
+ * chip documentation does not say if the bits are
+ * self-clearing, so do it explicitly
+ */
+ regmap_write(sta32x->regmap, STA32X_CFUD, cfud);
+ regmap_write(sta32x->regmap, STA32X_CFUD, cfud | 0x01);
}
return 0;
}
@@ -336,11 +384,11 @@ static int sta32x_cache_sync(struct snd_soc_codec *codec)
int rc;
/* mute during register sync */
- mute = snd_soc_read(codec, STA32X_MMUTE);
- snd_soc_write(codec, STA32X_MMUTE, mute | STA32X_MMUTE_MMUTE);
+ regmap_read(sta32x->regmap, STA32X_MMUTE, &mute);
+ regmap_write(sta32x->regmap, STA32X_MMUTE, mute | STA32X_MMUTE_MMUTE);
sta32x_sync_coef_shadow(codec);
rc = regcache_sync(sta32x->regmap);
- snd_soc_write(codec, STA32X_MMUTE, mute);
+ regmap_write(sta32x->regmap, STA32X_MMUTE, mute);
return rc;
}
@@ -508,17 +556,12 @@ static struct {
};
/* MCLK to fs clock ratios */
-static struct {
- int ratio;
- int mcs;
-} mclk_ratios[3][7] = {
- { { 768, 0 }, { 512, 1 }, { 384, 2 }, { 256, 3 },
- { 128, 4 }, { 576, 5 }, { 0, 0 } },
- { { 384, 2 }, { 256, 3 }, { 192, 4 }, { 128, 5 }, {64, 0 }, { 0, 0 } },
- { { 384, 2 }, { 256, 3 }, { 192, 4 }, { 128, 5 }, {64, 0 }, { 0, 0 } },
+static int mcs_ratio_table[3][7] = {
+ { 768, 512, 384, 256, 128, 576, 0 },
+ { 384, 256, 192, 128, 64, 0 },
+ { 384, 256, 192, 128, 64, 0 },
};
-
/**
* sta32x_set_dai_sysclk - configure MCLK
* @codec_dai: the codec DAI
@@ -543,46 +586,10 @@ static int sta32x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
{
struct snd_soc_codec *codec = codec_dai->codec;
struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
- int i, j, ir, fs;
- unsigned int rates = 0;
- unsigned int rate_min = -1;
- unsigned int rate_max = 0;
- pr_debug("mclk=%u\n", freq);
+ dev_dbg(codec->dev, "mclk=%u\n", freq);
sta32x->mclk = freq;
- if (sta32x->mclk) {
- for (i = 0; i < ARRAY_SIZE(interpolation_ratios); i++) {
- ir = interpolation_ratios[i].ir;
- fs = interpolation_ratios[i].fs;
- for (j = 0; mclk_ratios[ir][j].ratio; j++) {
- if (mclk_ratios[ir][j].ratio * fs == freq) {
- rates |= snd_pcm_rate_to_rate_bit(fs);
- if (fs < rate_min)
- rate_min = fs;
- if (fs > rate_max)
- rate_max = fs;
- break;
- }
- }
- }
- /* FIXME: soc should support a rate list */
- rates &= ~SNDRV_PCM_RATE_KNOT;
-
- if (!rates) {
- dev_err(codec->dev, "could not find a valid sample rate\n");
- return -EINVAL;
- }
- } else {
- /* enable all possible rates */
- rates = STA32X_RATES;
- rate_min = 32000;
- rate_max = 192000;
- }
-
- codec_dai->driver->playback.rates = rates;
- codec_dai->driver->playback.rate_min = rate_min;
- codec_dai->driver->playback.rate_max = rate_max;
return 0;
}
@@ -599,10 +606,7 @@ static int sta32x_set_dai_fmt(struct snd_soc_dai *codec_dai,
{
struct snd_soc_codec *codec = codec_dai->codec;
struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
- u8 confb = snd_soc_read(codec, STA32X_CONFB);
-
- pr_debug("\n");
- confb &= ~(STA32X_CONFB_C1IM | STA32X_CONFB_C2IM);
+ u8 confb = 0;
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS:
@@ -632,8 +636,8 @@ static int sta32x_set_dai_fmt(struct snd_soc_dai *codec_dai,
return -EINVAL;
}
- snd_soc_write(codec, STA32X_CONFB, confb);
- return 0;
+ return regmap_update_bits(sta32x->regmap, STA32X_CONFB,
+ STA32X_CONFB_C1IM | STA32X_CONFB_C2IM, confb);
}
/**
@@ -651,39 +655,55 @@ static int sta32x_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_codec *codec = dai->codec;
struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
- unsigned int rate;
- int i, mcs = -1, ir = -1;
- u8 confa, confb;
+ int i, mcs = -EINVAL, ir = -EINVAL;
+ unsigned int confa, confb;
+ unsigned int rate, ratio;
+ int ret;
+
+ if (!sta32x->mclk) {
+ dev_err(codec->dev,
+ "sta32x->mclk is unset. Unable to determine ratio\n");
+ return -EIO;
+ }
rate = params_rate(params);
- pr_debug("rate: %u\n", rate);
- for (i = 0; i < ARRAY_SIZE(interpolation_ratios); i++)
+ ratio = sta32x->mclk / rate;
+ dev_dbg(codec->dev, "rate: %u, ratio: %u\n", rate, ratio);
+
+ for (i = 0; i < ARRAY_SIZE(interpolation_ratios); i++) {
if (interpolation_ratios[i].fs == rate) {
ir = interpolation_ratios[i].ir;
break;
}
- if (ir < 0)
+ }
+
+ if (ir < 0) {
+ dev_err(codec->dev, "Unsupported samplerate: %u\n", rate);
return -EINVAL;
- for (i = 0; mclk_ratios[ir][i].ratio; i++)
- if (mclk_ratios[ir][i].ratio * rate == sta32x->mclk) {
- mcs = mclk_ratios[ir][i].mcs;
+ }
+
+ for (i = 0; i < 6; i++) {
+ if (mcs_ratio_table[ir][i] == ratio) {
+ mcs = i;
break;
}
- if (mcs < 0)
+ }
+
+ if (mcs < 0) {
+ dev_err(codec->dev, "Unresolvable ratio: %u\n", ratio);
return -EINVAL;
+ }
- confa = snd_soc_read(codec, STA32X_CONFA);
- confa &= ~(STA32X_CONFA_MCS_MASK | STA32X_CONFA_IR_MASK);
- confa |= (ir << STA32X_CONFA_IR_SHIFT) | (mcs << STA32X_CONFA_MCS_SHIFT);
+ confa = (ir << STA32X_CONFA_IR_SHIFT) |
+ (mcs << STA32X_CONFA_MCS_SHIFT);
+ confb = 0;
- confb = snd_soc_read(codec, STA32X_CONFB);
- confb &= ~(STA32X_CONFB_SAI_MASK | STA32X_CONFB_SAIFB);
switch (params_width(params)) {
case 24:
- pr_debug("24bit\n");
+ dev_dbg(codec->dev, "24bit\n");
/* fall through */
case 32:
- pr_debug("24bit or 32bit\n");
+ dev_dbg(codec->dev, "24bit or 32bit\n");
switch (sta32x->format) {
case SND_SOC_DAIFMT_I2S:
confb |= 0x0;
@@ -698,7 +718,7 @@ static int sta32x_hw_params(struct snd_pcm_substream *substream,
break;
case 20:
- pr_debug("20bit\n");
+ dev_dbg(codec->dev, "20bit\n");
switch (sta32x->format) {
case SND_SOC_DAIFMT_I2S:
confb |= 0x4;
@@ -713,7 +733,7 @@ static int sta32x_hw_params(struct snd_pcm_substream *substream,
break;
case 18:
- pr_debug("18bit\n");
+ dev_dbg(codec->dev, "18bit\n");
switch (sta32x->format) {
case SND_SOC_DAIFMT_I2S:
confb |= 0x8;
@@ -728,7 +748,7 @@ static int sta32x_hw_params(struct snd_pcm_substream *substream,
break;
case 16:
- pr_debug("16bit\n");
+ dev_dbg(codec->dev, "16bit\n");
switch (sta32x->format) {
case SND_SOC_DAIFMT_I2S:
confb |= 0x0;
@@ -746,8 +766,30 @@ static int sta32x_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
- snd_soc_write(codec, STA32X_CONFA, confa);
- snd_soc_write(codec, STA32X_CONFB, confb);
+ ret = regmap_update_bits(sta32x->regmap, STA32X_CONFA,
+ STA32X_CONFA_MCS_MASK | STA32X_CONFA_IR_MASK,
+ confa);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_update_bits(sta32x->regmap, STA32X_CONFB,
+ STA32X_CONFB_SAI_MASK | STA32X_CONFB_SAIFB,
+ confb);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int sta32x_startup_sequence(struct sta32x_priv *sta32x)
+{
+ if (sta32x->gpiod_nreset) {
+ gpiod_set_value(sta32x->gpiod_nreset, 0);
+ mdelay(1);
+ gpiod_set_value(sta32x->gpiod_nreset, 1);
+ mdelay(1);
+ }
+
return 0;
}
@@ -766,14 +808,14 @@ static int sta32x_set_bias_level(struct snd_soc_codec *codec,
int ret;
struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
- pr_debug("level = %d\n", level);
+ dev_dbg(codec->dev, "level = %d\n", level);
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
/* Full power on */
- snd_soc_update_bits(codec, STA32X_CONFF,
+ regmap_update_bits(sta32x->regmap, STA32X_CONFF,
STA32X_CONFF_PWDN | STA32X_CONFF_EAPD,
STA32X_CONFF_PWDN | STA32X_CONFF_EAPD);
break;
@@ -788,25 +830,28 @@ static int sta32x_set_bias_level(struct snd_soc_codec *codec,
return ret;
}
+ sta32x_startup_sequence(sta32x);
sta32x_cache_sync(codec);
sta32x_watchdog_start(sta32x);
}
- /* Power up to mute */
- /* FIXME */
- snd_soc_update_bits(codec, STA32X_CONFF,
- STA32X_CONFF_PWDN | STA32X_CONFF_EAPD,
- STA32X_CONFF_PWDN | STA32X_CONFF_EAPD);
+ /* Power down */
+ regmap_update_bits(sta32x->regmap, STA32X_CONFF,
+ STA32X_CONFF_PWDN | STA32X_CONFF_EAPD,
+ 0);
break;
case SND_SOC_BIAS_OFF:
/* The chip runs through the power down sequence for us. */
- snd_soc_update_bits(codec, STA32X_CONFF,
- STA32X_CONFF_PWDN | STA32X_CONFF_EAPD,
- STA32X_CONFF_PWDN);
+ regmap_update_bits(sta32x->regmap, STA32X_CONFF,
+ STA32X_CONFF_PWDN | STA32X_CONFF_EAPD, 0);
msleep(300);
sta32x_watchdog_stop(sta32x);
+
+ if (sta32x->gpiod_nreset)
+ gpiod_set_value(sta32x->gpiod_nreset, 0);
+
regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies),
sta32x->supplies);
break;
@@ -822,7 +867,7 @@ static const struct snd_soc_dai_ops sta32x_dai_ops = {
};
static struct snd_soc_dai_driver sta32x_dai = {
- .name = "STA32X",
+ .name = "sta32x-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
@@ -836,11 +881,8 @@ static struct snd_soc_dai_driver sta32x_dai = {
static int sta32x_probe(struct snd_soc_codec *codec)
{
struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
+ struct sta32x_platform_data *pdata = sta32x->pdata;
int i, ret = 0, thermal = 0;
-
- sta32x->codec = codec;
- sta32x->pdata = dev_get_platdata(codec->dev);
-
ret = regulator_bulk_enable(ARRAY_SIZE(sta32x->supplies),
sta32x->supplies);
if (ret != 0) {
@@ -848,50 +890,73 @@ static int sta32x_probe(struct snd_soc_codec *codec)
return ret;
}
- /* Chip documentation explicitly requires that the reset values
- * of reserved register bits are left untouched.
- * Write the register default value to cache for reserved registers,
- * so the write to the these registers are suppressed by the cache
- * restore code when it skips writes of default registers.
- */
- regcache_cache_only(sta32x->regmap, true);
- snd_soc_write(codec, STA32X_CONFC, 0xc2);
- snd_soc_write(codec, STA32X_CONFE, 0xc2);
- snd_soc_write(codec, STA32X_CONFF, 0x5c);
- snd_soc_write(codec, STA32X_MMUTE, 0x10);
- snd_soc_write(codec, STA32X_AUTO1, 0x60);
- snd_soc_write(codec, STA32X_AUTO3, 0x00);
- snd_soc_write(codec, STA32X_C3CFG, 0x40);
- regcache_cache_only(sta32x->regmap, false);
-
- /* set thermal warning adjustment and recovery */
- if (!(sta32x->pdata->thermal_conf & STA32X_THERMAL_ADJUSTMENT_ENABLE))
+ ret = sta32x_startup_sequence(sta32x);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to startup device\n");
+ return ret;
+ }
+
+ /* CONFA */
+ if (!pdata->thermal_warning_recovery)
thermal |= STA32X_CONFA_TWAB;
- if (!(sta32x->pdata->thermal_conf & STA32X_THERMAL_RECOVERY_ENABLE))
+ if (!pdata->thermal_warning_adjustment)
thermal |= STA32X_CONFA_TWRB;
- snd_soc_update_bits(codec, STA32X_CONFA,
- STA32X_CONFA_TWAB | STA32X_CONFA_TWRB,
- thermal);
+ if (!pdata->fault_detect_recovery)
+ thermal |= STA32X_CONFA_FDRB;
+ regmap_update_bits(sta32x->regmap, STA32X_CONFA,
+ STA32X_CONFA_TWAB | STA32X_CONFA_TWRB |
+ STA32X_CONFA_FDRB,
+ thermal);
+
+ /* CONFC */
+ regmap_update_bits(sta32x->regmap, STA32X_CONFC,
+ STA32X_CONFC_CSZ_MASK,
+ pdata->drop_compensation_ns
+ << STA32X_CONFC_CSZ_SHIFT);
+
+ /* CONFE */
+ regmap_update_bits(sta32x->regmap, STA32X_CONFE,
+ STA32X_CONFE_MPCV,
+ pdata->max_power_use_mpcc ?
+ STA32X_CONFE_MPCV : 0);
+ regmap_update_bits(sta32x->regmap, STA32X_CONFE,
+ STA32X_CONFE_MPC,
+ pdata->max_power_correction ?
+ STA32X_CONFE_MPC : 0);
+ regmap_update_bits(sta32x->regmap, STA32X_CONFE,
+ STA32X_CONFE_AME,
+ pdata->am_reduction_mode ?
+ STA32X_CONFE_AME : 0);
+ regmap_update_bits(sta32x->regmap, STA32X_CONFE,
+ STA32X_CONFE_PWMS,
+ pdata->odd_pwm_speed_mode ?
+ STA32X_CONFE_PWMS : 0);
+
+ /* CONFF */
+ regmap_update_bits(sta32x->regmap, STA32X_CONFF,
+ STA32X_CONFF_IDE,
+ pdata->invalid_input_detect_mute ?
+ STA32X_CONFF_IDE : 0);
/* select output configuration */
- snd_soc_update_bits(codec, STA32X_CONFF,
- STA32X_CONFF_OCFG_MASK,
- sta32x->pdata->output_conf
- << STA32X_CONFF_OCFG_SHIFT);
+ regmap_update_bits(sta32x->regmap, STA32X_CONFF,
+ STA32X_CONFF_OCFG_MASK,
+ pdata->output_conf
+ << STA32X_CONFF_OCFG_SHIFT);
/* channel to output mapping */
- snd_soc_update_bits(codec, STA32X_C1CFG,
- STA32X_CxCFG_OM_MASK,
- sta32x->pdata->ch1_output_mapping
- << STA32X_CxCFG_OM_SHIFT);
- snd_soc_update_bits(codec, STA32X_C2CFG,
- STA32X_CxCFG_OM_MASK,
- sta32x->pdata->ch2_output_mapping
- << STA32X_CxCFG_OM_SHIFT);
- snd_soc_update_bits(codec, STA32X_C3CFG,
- STA32X_CxCFG_OM_MASK,
- sta32x->pdata->ch3_output_mapping
- << STA32X_CxCFG_OM_SHIFT);
+ regmap_update_bits(sta32x->regmap, STA32X_C1CFG,
+ STA32X_CxCFG_OM_MASK,
+ pdata->ch1_output_mapping
+ << STA32X_CxCFG_OM_SHIFT);
+ regmap_update_bits(sta32x->regmap, STA32X_C2CFG,
+ STA32X_CxCFG_OM_MASK,
+ pdata->ch2_output_mapping
+ << STA32X_CxCFG_OM_SHIFT);
+ regmap_update_bits(sta32x->regmap, STA32X_C3CFG,
+ STA32X_CxCFG_OM_MASK,
+ pdata->ch3_output_mapping
+ << STA32X_CxCFG_OM_SHIFT);
/* initialize coefficient shadow RAM with reset values */
for (i = 4; i <= 49; i += 5)
@@ -924,16 +989,6 @@ static int sta32x_remove(struct snd_soc_codec *codec)
return 0;
}
-static bool sta32x_reg_is_volatile(struct device *dev, unsigned int reg)
-{
- switch (reg) {
- case STA32X_CONFA ... STA32X_L2ATRT:
- case STA32X_MPCC1 ... STA32X_FDRC2:
- return 0;
- }
- return 1;
-}
-
static const struct snd_soc_codec_driver sta32x_codec = {
.probe = sta32x_probe,
.remove = sta32x_remove,
@@ -954,12 +1009,75 @@ static const struct regmap_config sta32x_regmap = {
.reg_defaults = sta32x_regs,
.num_reg_defaults = ARRAY_SIZE(sta32x_regs),
.cache_type = REGCACHE_RBTREE,
- .volatile_reg = sta32x_reg_is_volatile,
+ .wr_table = &sta32x_write_regs,
+ .rd_table = &sta32x_read_regs,
+ .volatile_table = &sta32x_volatile_regs,
};
+#ifdef CONFIG_OF
+static const struct of_device_id st32x_dt_ids[] = {
+ { .compatible = "st,sta32x", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, st32x_dt_ids);
+
+static int sta32x_probe_dt(struct device *dev, struct sta32x_priv *sta32x)
+{
+ struct device_node *np = dev->of_node;
+ struct sta32x_platform_data *pdata;
+ u16 tmp;
+
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+
+ of_property_read_u8(np, "st,output-conf",
+ &pdata->output_conf);
+ of_property_read_u8(np, "st,ch1-output-mapping",
+ &pdata->ch1_output_mapping);
+ of_property_read_u8(np, "st,ch2-output-mapping",
+ &pdata->ch2_output_mapping);
+ of_property_read_u8(np, "st,ch3-output-mapping",
+ &pdata->ch3_output_mapping);
+
+ if (of_get_property(np, "st,thermal-warning-recovery", NULL))
+ pdata->thermal_warning_recovery = 1;
+ if (of_get_property(np, "st,thermal-warning-adjustment", NULL))
+ pdata->thermal_warning_adjustment = 1;
+ if (of_get_property(np, "st,needs_esd_watchdog", NULL))
+ pdata->needs_esd_watchdog = 1;
+
+ tmp = 140;
+ of_property_read_u16(np, "st,drop-compensation-ns", &tmp);
+ pdata->drop_compensation_ns = clamp_t(u16, tmp, 0, 300) / 20;
+
+ /* CONFE */
+ if (of_get_property(np, "st,max-power-use-mpcc", NULL))
+ pdata->max_power_use_mpcc = 1;
+
+ if (of_get_property(np, "st,max-power-correction", NULL))
+ pdata->max_power_correction = 1;
+
+ if (of_get_property(np, "st,am-reduction-mode", NULL))
+ pdata->am_reduction_mode = 1;
+
+ if (of_get_property(np, "st,odd-pwm-speed-mode", NULL))
+ pdata->odd_pwm_speed_mode = 1;
+
+ /* CONFF */
+ if (of_get_property(np, "st,invalid-input-detect-mute", NULL))
+ pdata->invalid_input_detect_mute = 1;
+
+ sta32x->pdata = pdata;
+
+ return 0;
+}
+#endif
+
static int sta32x_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
+ struct device *dev = &i2c->dev;
struct sta32x_priv *sta32x;
int ret, i;
@@ -968,6 +1086,29 @@ static int sta32x_i2c_probe(struct i2c_client *i2c,
if (!sta32x)
return -ENOMEM;
+ mutex_init(&sta32x->coeff_lock);
+ sta32x->pdata = dev_get_platdata(dev);
+
+#ifdef CONFIG_OF
+ if (dev->of_node) {
+ ret = sta32x_probe_dt(dev, sta32x);
+ if (ret < 0)
+ return ret;
+ }
+#endif
+
+ /* GPIOs */
+ sta32x->gpiod_nreset = devm_gpiod_get(dev, "reset");
+ if (IS_ERR(sta32x->gpiod_nreset)) {
+ ret = PTR_ERR(sta32x->gpiod_nreset);
+ if (ret != -ENOENT && ret != -ENOSYS)
+ return ret;
+
+ sta32x->gpiod_nreset = NULL;
+ } else {
+ gpiod_direction_output(sta32x->gpiod_nreset, 0);
+ }
+
/* regulators */
for (i = 0; i < ARRAY_SIZE(sta32x->supplies); i++)
sta32x->supplies[i].supply = sta32x_supply_names[i];
@@ -982,15 +1123,15 @@ static int sta32x_i2c_probe(struct i2c_client *i2c,
sta32x->regmap = devm_regmap_init_i2c(i2c, &sta32x_regmap);
if (IS_ERR(sta32x->regmap)) {
ret = PTR_ERR(sta32x->regmap);
- dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
+ dev_err(dev, "Failed to init regmap: %d\n", ret);
return ret;
}
i2c_set_clientdata(i2c, sta32x);
- ret = snd_soc_register_codec(&i2c->dev, &sta32x_codec, &sta32x_dai, 1);
- if (ret != 0)
- dev_err(&i2c->dev, "Failed to register codec (%d)\n", ret);
+ ret = snd_soc_register_codec(dev, &sta32x_codec, &sta32x_dai, 1);
+ if (ret < 0)
+ dev_err(dev, "Failed to register codec (%d)\n", ret);
return ret;
}
@@ -1013,6 +1154,7 @@ static struct i2c_driver sta32x_i2c_driver = {
.driver = {
.name = "sta32x",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(st32x_dt_ids),
},
.probe = sta32x_i2c_probe,
.remove = sta32x_i2c_remove,