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Diffstat (limited to 'sound/soc/codecs/tas2764.c')
-rw-r--r--sound/soc/codecs/tas2764.c252
1 files changed, 165 insertions, 87 deletions
diff --git a/sound/soc/codecs/tas2764.c b/sound/soc/codecs/tas2764.c
index 9265af41c235..2e0ed3e68fa5 100644
--- a/sound/soc/codecs/tas2764.c
+++ b/sound/soc/codecs/tas2764.c
@@ -31,51 +31,96 @@ struct tas2764_priv {
struct gpio_desc *sdz_gpio;
struct regmap *regmap;
struct device *dev;
+ int irq;
int v_sense_slot;
int i_sense_slot;
+
+ bool dac_powered;
+ bool unmuted;
+};
+
+static const char *tas2764_int_ltch0_msgs[8] = {
+ "fault: over temperature", /* INT_LTCH0 & BIT(0) */
+ "fault: over current",
+ "fault: bad TDM clock",
+ "limiter active",
+ "fault: PVDD below limiter inflection point",
+ "fault: limiter max attenuation",
+ "fault: BOP infinite hold",
+ "fault: BOP mute", /* INT_LTCH0 & BIT(7) */
+};
+
+static const unsigned int tas2764_int_readout_regs[6] = {
+ TAS2764_INT_LTCH0,
+ TAS2764_INT_LTCH1,
+ TAS2764_INT_LTCH1_0,
+ TAS2764_INT_LTCH2,
+ TAS2764_INT_LTCH3,
+ TAS2764_INT_LTCH4,
};
+static irqreturn_t tas2764_irq(int irq, void *data)
+{
+ struct tas2764_priv *tas2764 = data;
+ u8 latched[6] = {0, 0, 0, 0, 0, 0};
+ int ret = IRQ_NONE;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(latched); i++)
+ latched[i] = snd_soc_component_read(tas2764->component,
+ tas2764_int_readout_regs[i]);
+
+ for (i = 0; i < 8; i++) {
+ if (latched[0] & BIT(i)) {
+ dev_crit_ratelimited(tas2764->dev, "%s\n",
+ tas2764_int_ltch0_msgs[i]);
+ ret = IRQ_HANDLED;
+ }
+ }
+
+ if (latched[0]) {
+ dev_err_ratelimited(tas2764->dev, "other context to the fault: %02x,%02x,%02x,%02x,%02x",
+ latched[1], latched[2], latched[3], latched[4], latched[5]);
+ snd_soc_component_update_bits(tas2764->component,
+ TAS2764_INT_CLK_CFG,
+ TAS2764_INT_CLK_CFG_IRQZ_CLR,
+ TAS2764_INT_CLK_CFG_IRQZ_CLR);
+ }
+
+ return ret;
+}
+
static void tas2764_reset(struct tas2764_priv *tas2764)
{
if (tas2764->reset_gpio) {
gpiod_set_value_cansleep(tas2764->reset_gpio, 0);
msleep(20);
gpiod_set_value_cansleep(tas2764->reset_gpio, 1);
+ usleep_range(1000, 2000);
}
snd_soc_component_write(tas2764->component, TAS2764_SW_RST,
TAS2764_RST);
+ usleep_range(1000, 2000);
}
-static int tas2764_set_bias_level(struct snd_soc_component *component,
- enum snd_soc_bias_level level)
+static int tas2764_update_pwr_ctrl(struct tas2764_priv *tas2764)
{
- struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);
+ struct snd_soc_component *component = tas2764->component;
+ unsigned int val;
+ int ret;
- switch (level) {
- case SND_SOC_BIAS_ON:
- snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
- TAS2764_PWR_CTRL_MASK,
- TAS2764_PWR_CTRL_ACTIVE);
- break;
- case SND_SOC_BIAS_STANDBY:
- case SND_SOC_BIAS_PREPARE:
- snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
- TAS2764_PWR_CTRL_MASK,
- TAS2764_PWR_CTRL_MUTE);
- break;
- case SND_SOC_BIAS_OFF:
- snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
- TAS2764_PWR_CTRL_MASK,
- TAS2764_PWR_CTRL_SHUTDOWN);
- break;
+ if (tas2764->dac_powered)
+ val = tas2764->unmuted ?
+ TAS2764_PWR_CTRL_ACTIVE : TAS2764_PWR_CTRL_MUTE;
+ else
+ val = TAS2764_PWR_CTRL_SHUTDOWN;
- default:
- dev_err(tas2764->dev,
- "wrong power level setting %d\n", level);
- return -EINVAL;
- }
+ ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
+ TAS2764_PWR_CTRL_MASK, val);
+ if (ret < 0)
+ return ret;
return 0;
}
@@ -107,12 +152,12 @@ static int tas2764_codec_resume(struct snd_soc_component *component)
struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);
int ret;
- if (tas2764->sdz_gpio)
+ if (tas2764->sdz_gpio) {
gpiod_set_value_cansleep(tas2764->sdz_gpio, 1);
+ usleep_range(1000, 2000);
+ }
- ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
- TAS2764_PWR_CTRL_MASK,
- TAS2764_PWR_CTRL_ACTIVE);
+ ret = tas2764_update_pwr_ctrl(tas2764);
if (ret < 0)
return ret;
@@ -131,7 +176,8 @@ static const char * const tas2764_ASI1_src[] = {
};
static SOC_ENUM_SINGLE_DECL(
- tas2764_ASI1_src_enum, TAS2764_TDM_CFG2, 4, tas2764_ASI1_src);
+ tas2764_ASI1_src_enum, TAS2764_TDM_CFG2, TAS2764_TDM_CFG2_SCFG_SHIFT,
+ tas2764_ASI1_src);
static const struct snd_kcontrol_new tas2764_asi1_mux =
SOC_DAPM_ENUM("ASI1 Source", tas2764_ASI1_src_enum);
@@ -145,14 +191,12 @@ static int tas2764_dac_event(struct snd_soc_dapm_widget *w,
switch (event) {
case SND_SOC_DAPM_POST_PMU:
- ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
- TAS2764_PWR_CTRL_MASK,
- TAS2764_PWR_CTRL_MUTE);
+ tas2764->dac_powered = true;
+ ret = tas2764_update_pwr_ctrl(tas2764);
break;
case SND_SOC_DAPM_PRE_PMD:
- ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
- TAS2764_PWR_CTRL_MASK,
- TAS2764_PWR_CTRL_SHUTDOWN);
+ tas2764->dac_powered = false;
+ ret = tas2764_update_pwr_ctrl(tas2764);
break;
default:
dev_err(tas2764->dev, "Unsupported event\n");
@@ -197,17 +241,11 @@ static const struct snd_soc_dapm_route tas2764_audio_map[] = {
static int tas2764_mute(struct snd_soc_dai *dai, int mute, int direction)
{
- struct snd_soc_component *component = dai->component;
- int ret;
-
- ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
- TAS2764_PWR_CTRL_MASK,
- mute ? TAS2764_PWR_CTRL_MUTE : 0);
-
- if (ret < 0)
- return ret;
+ struct tas2764_priv *tas2764 =
+ snd_soc_component_get_drvdata(dai->component);
- return 0;
+ tas2764->unmuted = !mute;
+ return tas2764_update_pwr_ctrl(tas2764);
}
static int tas2764_set_bitwidth(struct tas2764_priv *tas2764, int bitwidth)
@@ -329,20 +367,22 @@ static int tas2764_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *component = dai->component;
struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);
- u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0;
- int iface;
+ u8 tdm_rx_start_slot = 0, asi_cfg_0 = 0, asi_cfg_1 = 0;
int ret;
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_IF:
+ asi_cfg_0 ^= TAS2764_TDM_CFG0_FRAME_START;
+ fallthrough;
case SND_SOC_DAIFMT_NB_NF:
asi_cfg_1 = TAS2764_TDM_CFG1_RX_RISING;
break;
+ case SND_SOC_DAIFMT_IB_IF:
+ asi_cfg_0 ^= TAS2764_TDM_CFG0_FRAME_START;
+ fallthrough;
case SND_SOC_DAIFMT_IB_NF:
asi_cfg_1 = TAS2764_TDM_CFG1_RX_FALLING;
break;
- default:
- dev_err(tas2764->dev, "ASI format Inverse is not found\n");
- return -EINVAL;
}
ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG1,
@@ -353,13 +393,13 @@ static int tas2764_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
+ asi_cfg_0 ^= TAS2764_TDM_CFG0_FRAME_START;
+ fallthrough;
case SND_SOC_DAIFMT_DSP_A:
- iface = TAS2764_TDM_CFG2_SCFG_I2S;
tdm_rx_start_slot = 1;
break;
case SND_SOC_DAIFMT_DSP_B:
case SND_SOC_DAIFMT_LEFT_J:
- iface = TAS2764_TDM_CFG2_SCFG_LEFT_J;
tdm_rx_start_slot = 0;
break;
default:
@@ -368,14 +408,15 @@ static int tas2764_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
return -EINVAL;
}
- ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG1,
- TAS2764_TDM_CFG1_MASK,
- (tdm_rx_start_slot << TAS2764_TDM_CFG1_51_SHIFT));
+ ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG0,
+ TAS2764_TDM_CFG0_FRAME_START,
+ asi_cfg_0);
if (ret < 0)
return ret;
- ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG2,
- TAS2764_TDM_CFG2_SCFG_MASK, iface);
+ ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG1,
+ TAS2764_TDM_CFG1_MASK,
+ (tdm_rx_start_slot << TAS2764_TDM_CFG1_51_SHIFT));
if (ret < 0)
return ret;
@@ -397,20 +438,13 @@ static int tas2764_set_dai_tdm_slot(struct snd_soc_dai *dai,
if (tx_mask == 0 || rx_mask != 0)
return -EINVAL;
- if (slots == 1) {
- if (tx_mask != 1)
- return -EINVAL;
- left_slot = 0;
- right_slot = 0;
+ left_slot = __ffs(tx_mask);
+ tx_mask &= ~(1 << left_slot);
+ if (tx_mask == 0) {
+ right_slot = left_slot;
} else {
- left_slot = __ffs(tx_mask);
- tx_mask &= ~(1 << left_slot);
- if (tx_mask == 0) {
- right_slot = left_slot;
- } else {
- right_slot = __ffs(tx_mask);
- tx_mask &= ~(1 << right_slot);
- }
+ right_slot = __ffs(tx_mask);
+ tx_mask &= ~(1 << right_slot);
}
if (tx_mask != 0 || left_slot >= slots || right_slot >= slots)
@@ -477,7 +511,7 @@ static struct snd_soc_dai_driver tas2764_dai_driver[] = {
.id = 0,
.playback = {
.stream_name = "ASI1 Playback",
- .channels_min = 2,
+ .channels_min = 1,
.channels_max = 2,
.rates = TAS2764_RATES,
.formats = TAS2764_FORMATS,
@@ -501,11 +535,41 @@ static int tas2764_codec_probe(struct snd_soc_component *component)
tas2764->component = component;
- if (tas2764->sdz_gpio)
+ if (tas2764->sdz_gpio) {
gpiod_set_value_cansleep(tas2764->sdz_gpio, 1);
+ usleep_range(1000, 2000);
+ }
tas2764_reset(tas2764);
+ if (tas2764->irq) {
+ ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK0, 0xff);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK1, 0xff);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK2, 0xff);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK3, 0xff);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK4, 0xff);
+ if (ret < 0)
+ return ret;
+
+ ret = devm_request_threaded_irq(tas2764->dev, tas2764->irq, NULL, tas2764_irq,
+ IRQF_ONESHOT | IRQF_SHARED | IRQF_TRIGGER_LOW,
+ "tas2764", tas2764);
+ if (ret)
+ dev_warn(tas2764->dev, "failed to request IRQ: %d\n", ret);
+ }
+
ret = snd_soc_component_update_bits(tas2764->component, TAS2764_TDM_CFG5,
TAS2764_TDM_CFG5_VSNS_ENABLE, 0);
if (ret < 0)
@@ -516,30 +580,33 @@ static int tas2764_codec_probe(struct snd_soc_component *component)
if (ret < 0)
return ret;
- ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
- TAS2764_PWR_CTRL_MASK,
- TAS2764_PWR_CTRL_MUTE);
- if (ret < 0)
- return ret;
-
return 0;
}
static DECLARE_TLV_DB_SCALE(tas2764_digital_tlv, 1100, 50, 0);
-static DECLARE_TLV_DB_SCALE(tas2764_playback_volume, -10000, 50, 0);
+static DECLARE_TLV_DB_SCALE(tas2764_playback_volume, -10050, 50, 1);
+
+static const char * const tas2764_hpf_texts[] = {
+ "Disabled", "2 Hz", "50 Hz", "100 Hz", "200 Hz",
+ "400 Hz", "800 Hz"
+};
+
+static SOC_ENUM_SINGLE_DECL(
+ tas2764_hpf_enum, TAS2764_DC_BLK0,
+ TAS2764_DC_BLK0_HPF_FREQ_PB_SHIFT, tas2764_hpf_texts);
static const struct snd_kcontrol_new tas2764_snd_controls[] = {
SOC_SINGLE_TLV("Speaker Volume", TAS2764_DVC, 0,
TAS2764_DVC_MAX, 1, tas2764_playback_volume),
- SOC_SINGLE_TLV("Amp Gain Volume", TAS2764_CHNL_0, 0, 0x14, 0,
+ SOC_SINGLE_TLV("Amp Gain Volume", TAS2764_CHNL_0, 1, 0x14, 0,
tas2764_digital_tlv),
+ SOC_ENUM("HPF Corner Frequency", tas2764_hpf_enum),
};
static const struct snd_soc_component_driver soc_component_driver_tas2764 = {
.probe = tas2764_codec_probe,
.suspend = tas2764_codec_suspend,
.resume = tas2764_codec_resume,
- .set_bias_level = tas2764_set_bias_level,
.controls = tas2764_snd_controls,
.num_controls = ARRAY_SIZE(tas2764_snd_controls),
.dapm_widgets = tas2764_dapm_widgets,
@@ -548,7 +615,6 @@ static const struct snd_soc_component_driver soc_component_driver_tas2764 = {
.num_dapm_routes = ARRAY_SIZE(tas2764_audio_map),
.idle_bias_on = 1,
.endianness = 1,
- .non_legacy_dai_naming = 1,
};
static const struct reg_default tas2764_reg_defaults[] = {
@@ -556,7 +622,7 @@ static const struct reg_default tas2764_reg_defaults[] = {
{ TAS2764_SW_RST, 0x00 },
{ TAS2764_PWR_CTRL, 0x1a },
{ TAS2764_DVC, 0x00 },
- { TAS2764_CHNL_0, 0x00 },
+ { TAS2764_CHNL_0, 0x28 },
{ TAS2764_TDM_CFG0, 0x09 },
{ TAS2764_TDM_CFG1, 0x02 },
{ TAS2764_TDM_CFG2, 0x0a },
@@ -576,9 +642,21 @@ static const struct regmap_range_cfg tas2764_regmap_ranges[] = {
},
};
+static bool tas2764_volatile_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TAS2764_INT_LTCH0 ... TAS2764_INT_LTCH4:
+ case TAS2764_INT_CLK_CFG:
+ return true;
+ default:
+ return false;
+ }
+}
+
static const struct regmap_config tas2764_i2c_regmap = {
.reg_bits = 8,
.val_bits = 8,
+ .volatile_reg = tas2764_volatile_register,
.reg_defaults = tas2764_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(tas2764_reg_defaults),
.cache_type = REGCACHE_RBTREE,
@@ -621,8 +699,7 @@ static int tas2764_parse_dt(struct device *dev, struct tas2764_priv *tas2764)
return 0;
}
-static int tas2764_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int tas2764_i2c_probe(struct i2c_client *client)
{
struct tas2764_priv *tas2764;
int result;
@@ -633,6 +710,7 @@ static int tas2764_i2c_probe(struct i2c_client *client,
return -ENOMEM;
tas2764->dev = &client->dev;
+ tas2764->irq = client->irq;
i2c_set_clientdata(client, tas2764);
dev_set_drvdata(&client->dev, tas2764);
@@ -678,7 +756,7 @@ static struct i2c_driver tas2764_i2c_driver = {
.name = "tas2764",
.of_match_table = of_match_ptr(tas2764_of_match),
},
- .probe = tas2764_i2c_probe,
+ .probe_new = tas2764_i2c_probe,
.id_table = tas2764_i2c_id,
};
module_i2c_driver(tas2764_i2c_driver);