Merge remote-tracking branch 'asoc/topic/tas5086' into asoc-next
diff --git a/Documentation/devicetree/bindings/sound/ti,tas5086.txt b/Documentation/devicetree/bindings/sound/ti,tas5086.txt
index 8ea4f5b..d2866a0 100644
--- a/Documentation/devicetree/bindings/sound/ti,tas5086.txt
+++ b/Documentation/devicetree/bindings/sound/ti,tas5086.txt
@@ -20,6 +20,17 @@
When not specified, the hardware default of 1300ms
is retained.
+ - ti,mid-z-channel-X: Boolean properties, X being a number from 1 to 6.
+ If given, channel X will start with the Mid-Z start
+ sequence, otherwise the default Low-Z scheme is used.
+
+ The correct configuration depends on how the power
+ stages connected to the PWM output pins work. Not all
+ power stages are compatible to Mid-Z - please refer
+ to the datasheets for more details.
+
+ Most systems should not set any of these properties.
+
Examples:
i2c_bus {
diff --git a/sound/soc/codecs/tas5086.c b/sound/soc/codecs/tas5086.c
index d447c4a..6d31d88 100644
--- a/sound/soc/codecs/tas5086.c
+++ b/sound/soc/codecs/tas5086.c
@@ -83,6 +83,14 @@
#define TAS5086_SPLIT_CAP_CHARGE 0x1a /* Split cap charge period register */
#define TAS5086_OSC_TRIM 0x1b /* Oscillator trim register */
#define TAS5086_BKNDERR 0x1c
+#define TAS5086_INPUT_MUX 0x20
+#define TAS5086_PWM_OUTPUT_MUX 0x25
+
+#define TAS5086_MAX_REGISTER TAS5086_PWM_OUTPUT_MUX
+
+#define TAS5086_PWM_START_MIDZ_FOR_START_1 (1 << 7)
+#define TAS5086_PWM_START_MIDZ_FOR_START_2 (1 << 6)
+#define TAS5086_PWM_START_CHANNEL_MASK (0x3f)
/*
* Default TAS5086 power-up configuration
@@ -119,9 +127,30 @@
{ 0x1c, 0x05 },
};
+static int tas5086_register_size(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TAS5086_CLOCK_CONTROL ... TAS5086_BKNDERR:
+ return 1;
+ case TAS5086_INPUT_MUX:
+ case TAS5086_PWM_OUTPUT_MUX:
+ return 4;
+ }
+
+ dev_err(dev, "Unsupported register address: %d\n", reg);
+ return 0;
+}
+
static bool tas5086_accessible_reg(struct device *dev, unsigned int reg)
{
- return !((reg == 0x0f) || (reg >= 0x11 && reg <= 0x17));
+ switch (reg) {
+ case 0x0f:
+ case 0x11 ... 0x17:
+ case 0x1d ... 0x1f:
+ return false;
+ default:
+ return true;
+ }
}
static bool tas5086_volatile_reg(struct device *dev, unsigned int reg)
@@ -140,6 +169,76 @@
return tas5086_accessible_reg(dev, reg) && (reg != TAS5086_DEV_ID);
}
+static int tas5086_reg_write(void *context, unsigned int reg,
+ unsigned int value)
+{
+ struct i2c_client *client = context;
+ unsigned int i, size;
+ uint8_t buf[5];
+ int ret;
+
+ size = tas5086_register_size(&client->dev, reg);
+ if (size == 0)
+ return -EINVAL;
+
+ buf[0] = reg;
+
+ for (i = size; i >= 1; --i) {
+ buf[i] = value;
+ value >>= 8;
+ }
+
+ ret = i2c_master_send(client, buf, size + 1);
+ if (ret == size + 1)
+ return 0;
+ else if (ret < 0)
+ return ret;
+ else
+ return -EIO;
+}
+
+static int tas5086_reg_read(void *context, unsigned int reg,
+ unsigned int *value)
+{
+ struct i2c_client *client = context;
+ uint8_t send_buf, recv_buf[4];
+ struct i2c_msg msgs[2];
+ unsigned int size;
+ unsigned int i;
+ int ret;
+
+ size = tas5086_register_size(&client->dev, reg);
+ if (size == 0)
+ return -EINVAL;
+
+ send_buf = reg;
+
+ msgs[0].addr = client->addr;
+ msgs[0].len = sizeof(send_buf);
+ msgs[0].buf = &send_buf;
+ msgs[0].flags = 0;
+
+ msgs[1].addr = client->addr;
+ msgs[1].len = size;
+ msgs[1].buf = recv_buf;
+ msgs[1].flags = I2C_M_RD;
+
+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret < 0)
+ return ret;
+ else if (ret != ARRAY_SIZE(msgs))
+ return -EIO;
+
+ *value = 0;
+
+ for (i = 0; i < size; i++) {
+ *value <<= 8;
+ *value |= recv_buf[i];
+ }
+
+ return 0;
+}
+
struct tas5086_private {
struct regmap *regmap;
unsigned int mclk, sclk;
@@ -376,6 +475,202 @@
tas5086_get_deemph, tas5086_put_deemph),
};
+/* Input mux controls */
+static const char *tas5086_dapm_sdin_texts[] =
+{
+ "SDIN1-L", "SDIN1-R", "SDIN2-L", "SDIN2-R",
+ "SDIN3-L", "SDIN3-R", "Ground (0)", "nc"
+};
+
+static const struct soc_enum tas5086_dapm_input_mux_enum[] = {
+ SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 20, 8, tas5086_dapm_sdin_texts),
+ SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 16, 8, tas5086_dapm_sdin_texts),
+ SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 12, 8, tas5086_dapm_sdin_texts),
+ SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 8, 8, tas5086_dapm_sdin_texts),
+ SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 4, 8, tas5086_dapm_sdin_texts),
+ SOC_ENUM_SINGLE(TAS5086_INPUT_MUX, 0, 8, tas5086_dapm_sdin_texts),
+};
+
+static const struct snd_kcontrol_new tas5086_dapm_input_mux_controls[] = {
+ SOC_DAPM_ENUM("Channel 1 input", tas5086_dapm_input_mux_enum[0]),
+ SOC_DAPM_ENUM("Channel 2 input", tas5086_dapm_input_mux_enum[1]),
+ SOC_DAPM_ENUM("Channel 3 input", tas5086_dapm_input_mux_enum[2]),
+ SOC_DAPM_ENUM("Channel 4 input", tas5086_dapm_input_mux_enum[3]),
+ SOC_DAPM_ENUM("Channel 5 input", tas5086_dapm_input_mux_enum[4]),
+ SOC_DAPM_ENUM("Channel 6 input", tas5086_dapm_input_mux_enum[5]),
+};
+
+/* Output mux controls */
+static const char *tas5086_dapm_channel_texts[] =
+ { "Channel 1 Mux", "Channel 2 Mux", "Channel 3 Mux",
+ "Channel 4 Mux", "Channel 5 Mux", "Channel 6 Mux" };
+
+static const struct soc_enum tas5086_dapm_output_mux_enum[] = {
+ SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 20, 6, tas5086_dapm_channel_texts),
+ SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 16, 6, tas5086_dapm_channel_texts),
+ SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 12, 6, tas5086_dapm_channel_texts),
+ SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 8, 6, tas5086_dapm_channel_texts),
+ SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 4, 6, tas5086_dapm_channel_texts),
+ SOC_ENUM_SINGLE(TAS5086_PWM_OUTPUT_MUX, 0, 6, tas5086_dapm_channel_texts),
+};
+
+static const struct snd_kcontrol_new tas5086_dapm_output_mux_controls[] = {
+ SOC_DAPM_ENUM("PWM1 Output", tas5086_dapm_output_mux_enum[0]),
+ SOC_DAPM_ENUM("PWM2 Output", tas5086_dapm_output_mux_enum[1]),
+ SOC_DAPM_ENUM("PWM3 Output", tas5086_dapm_output_mux_enum[2]),
+ SOC_DAPM_ENUM("PWM4 Output", tas5086_dapm_output_mux_enum[3]),
+ SOC_DAPM_ENUM("PWM5 Output", tas5086_dapm_output_mux_enum[4]),
+ SOC_DAPM_ENUM("PWM6 Output", tas5086_dapm_output_mux_enum[5]),
+};
+
+static const struct snd_soc_dapm_widget tas5086_dapm_widgets[] = {
+ SND_SOC_DAPM_INPUT("SDIN1-L"),
+ SND_SOC_DAPM_INPUT("SDIN1-R"),
+ SND_SOC_DAPM_INPUT("SDIN2-L"),
+ SND_SOC_DAPM_INPUT("SDIN2-R"),
+ SND_SOC_DAPM_INPUT("SDIN3-L"),
+ SND_SOC_DAPM_INPUT("SDIN3-R"),
+ SND_SOC_DAPM_INPUT("SDIN4-L"),
+ SND_SOC_DAPM_INPUT("SDIN4-R"),
+
+ SND_SOC_DAPM_OUTPUT("PWM1"),
+ SND_SOC_DAPM_OUTPUT("PWM2"),
+ SND_SOC_DAPM_OUTPUT("PWM3"),
+ SND_SOC_DAPM_OUTPUT("PWM4"),
+ SND_SOC_DAPM_OUTPUT("PWM5"),
+ SND_SOC_DAPM_OUTPUT("PWM6"),
+
+ SND_SOC_DAPM_MUX("Channel 1 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_input_mux_controls[0]),
+ SND_SOC_DAPM_MUX("Channel 2 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_input_mux_controls[1]),
+ SND_SOC_DAPM_MUX("Channel 3 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_input_mux_controls[2]),
+ SND_SOC_DAPM_MUX("Channel 4 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_input_mux_controls[3]),
+ SND_SOC_DAPM_MUX("Channel 5 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_input_mux_controls[4]),
+ SND_SOC_DAPM_MUX("Channel 6 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_input_mux_controls[5]),
+
+ SND_SOC_DAPM_MUX("PWM1 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_output_mux_controls[0]),
+ SND_SOC_DAPM_MUX("PWM2 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_output_mux_controls[1]),
+ SND_SOC_DAPM_MUX("PWM3 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_output_mux_controls[2]),
+ SND_SOC_DAPM_MUX("PWM4 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_output_mux_controls[3]),
+ SND_SOC_DAPM_MUX("PWM5 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_output_mux_controls[4]),
+ SND_SOC_DAPM_MUX("PWM6 Mux", SND_SOC_NOPM, 0, 0,
+ &tas5086_dapm_output_mux_controls[5]),
+};
+
+static const struct snd_soc_dapm_route tas5086_dapm_routes[] = {
+ /* SDIN inputs -> channel muxes */
+ { "Channel 1 Mux", "SDIN1-L", "SDIN1-L" },
+ { "Channel 1 Mux", "SDIN1-R", "SDIN1-R" },
+ { "Channel 1 Mux", "SDIN2-L", "SDIN2-L" },
+ { "Channel 1 Mux", "SDIN2-R", "SDIN2-R" },
+ { "Channel 1 Mux", "SDIN3-L", "SDIN3-L" },
+ { "Channel 1 Mux", "SDIN3-R", "SDIN3-R" },
+
+ { "Channel 2 Mux", "SDIN1-L", "SDIN1-L" },
+ { "Channel 2 Mux", "SDIN1-R", "SDIN1-R" },
+ { "Channel 2 Mux", "SDIN2-L", "SDIN2-L" },
+ { "Channel 2 Mux", "SDIN2-R", "SDIN2-R" },
+ { "Channel 2 Mux", "SDIN3-L", "SDIN3-L" },
+ { "Channel 2 Mux", "SDIN3-R", "SDIN3-R" },
+
+ { "Channel 2 Mux", "SDIN1-L", "SDIN1-L" },
+ { "Channel 2 Mux", "SDIN1-R", "SDIN1-R" },
+ { "Channel 2 Mux", "SDIN2-L", "SDIN2-L" },
+ { "Channel 2 Mux", "SDIN2-R", "SDIN2-R" },
+ { "Channel 2 Mux", "SDIN3-L", "SDIN3-L" },
+ { "Channel 2 Mux", "SDIN3-R", "SDIN3-R" },
+
+ { "Channel 3 Mux", "SDIN1-L", "SDIN1-L" },
+ { "Channel 3 Mux", "SDIN1-R", "SDIN1-R" },
+ { "Channel 3 Mux", "SDIN2-L", "SDIN2-L" },
+ { "Channel 3 Mux", "SDIN2-R", "SDIN2-R" },
+ { "Channel 3 Mux", "SDIN3-L", "SDIN3-L" },
+ { "Channel 3 Mux", "SDIN3-R", "SDIN3-R" },
+
+ { "Channel 4 Mux", "SDIN1-L", "SDIN1-L" },
+ { "Channel 4 Mux", "SDIN1-R", "SDIN1-R" },
+ { "Channel 4 Mux", "SDIN2-L", "SDIN2-L" },
+ { "Channel 4 Mux", "SDIN2-R", "SDIN2-R" },
+ { "Channel 4 Mux", "SDIN3-L", "SDIN3-L" },
+ { "Channel 4 Mux", "SDIN3-R", "SDIN3-R" },
+
+ { "Channel 5 Mux", "SDIN1-L", "SDIN1-L" },
+ { "Channel 5 Mux", "SDIN1-R", "SDIN1-R" },
+ { "Channel 5 Mux", "SDIN2-L", "SDIN2-L" },
+ { "Channel 5 Mux", "SDIN2-R", "SDIN2-R" },
+ { "Channel 5 Mux", "SDIN3-L", "SDIN3-L" },
+ { "Channel 5 Mux", "SDIN3-R", "SDIN3-R" },
+
+ { "Channel 6 Mux", "SDIN1-L", "SDIN1-L" },
+ { "Channel 6 Mux", "SDIN1-R", "SDIN1-R" },
+ { "Channel 6 Mux", "SDIN2-L", "SDIN2-L" },
+ { "Channel 6 Mux", "SDIN2-R", "SDIN2-R" },
+ { "Channel 6 Mux", "SDIN3-L", "SDIN3-L" },
+ { "Channel 6 Mux", "SDIN3-R", "SDIN3-R" },
+
+ /* Channel muxes -> PWM muxes */
+ { "PWM1 Mux", "Channel 1 Mux", "Channel 1 Mux" },
+ { "PWM2 Mux", "Channel 1 Mux", "Channel 1 Mux" },
+ { "PWM3 Mux", "Channel 1 Mux", "Channel 1 Mux" },
+ { "PWM4 Mux", "Channel 1 Mux", "Channel 1 Mux" },
+ { "PWM5 Mux", "Channel 1 Mux", "Channel 1 Mux" },
+ { "PWM6 Mux", "Channel 1 Mux", "Channel 1 Mux" },
+
+ { "PWM1 Mux", "Channel 2 Mux", "Channel 2 Mux" },
+ { "PWM2 Mux", "Channel 2 Mux", "Channel 2 Mux" },
+ { "PWM3 Mux", "Channel 2 Mux", "Channel 2 Mux" },
+ { "PWM4 Mux", "Channel 2 Mux", "Channel 2 Mux" },
+ { "PWM5 Mux", "Channel 2 Mux", "Channel 2 Mux" },
+ { "PWM6 Mux", "Channel 2 Mux", "Channel 2 Mux" },
+
+ { "PWM1 Mux", "Channel 3 Mux", "Channel 3 Mux" },
+ { "PWM2 Mux", "Channel 3 Mux", "Channel 3 Mux" },
+ { "PWM3 Mux", "Channel 3 Mux", "Channel 3 Mux" },
+ { "PWM4 Mux", "Channel 3 Mux", "Channel 3 Mux" },
+ { "PWM5 Mux", "Channel 3 Mux", "Channel 3 Mux" },
+ { "PWM6 Mux", "Channel 3 Mux", "Channel 3 Mux" },
+
+ { "PWM1 Mux", "Channel 4 Mux", "Channel 4 Mux" },
+ { "PWM2 Mux", "Channel 4 Mux", "Channel 4 Mux" },
+ { "PWM3 Mux", "Channel 4 Mux", "Channel 4 Mux" },
+ { "PWM4 Mux", "Channel 4 Mux", "Channel 4 Mux" },
+ { "PWM5 Mux", "Channel 4 Mux", "Channel 4 Mux" },
+ { "PWM6 Mux", "Channel 4 Mux", "Channel 4 Mux" },
+
+ { "PWM1 Mux", "Channel 5 Mux", "Channel 5 Mux" },
+ { "PWM2 Mux", "Channel 5 Mux", "Channel 5 Mux" },
+ { "PWM3 Mux", "Channel 5 Mux", "Channel 5 Mux" },
+ { "PWM4 Mux", "Channel 5 Mux", "Channel 5 Mux" },
+ { "PWM5 Mux", "Channel 5 Mux", "Channel 5 Mux" },
+ { "PWM6 Mux", "Channel 5 Mux", "Channel 5 Mux" },
+
+ { "PWM1 Mux", "Channel 6 Mux", "Channel 6 Mux" },
+ { "PWM2 Mux", "Channel 6 Mux", "Channel 6 Mux" },
+ { "PWM3 Mux", "Channel 6 Mux", "Channel 6 Mux" },
+ { "PWM4 Mux", "Channel 6 Mux", "Channel 6 Mux" },
+ { "PWM5 Mux", "Channel 6 Mux", "Channel 6 Mux" },
+ { "PWM6 Mux", "Channel 6 Mux", "Channel 6 Mux" },
+
+ /* The PWM muxes are directly connected to the PWM outputs */
+ { "PWM1", NULL, "PWM1 Mux" },
+ { "PWM2", NULL, "PWM2 Mux" },
+ { "PWM3", NULL, "PWM3 Mux" },
+ { "PWM4", NULL, "PWM4 Mux" },
+ { "PWM5", NULL, "PWM5 Mux" },
+ { "PWM6", NULL, "PWM6 Mux" },
+
+};
+
static const struct snd_soc_dai_ops tas5086_dai_ops = {
.hw_params = tas5086_hw_params,
.set_sysclk = tas5086_set_dai_sysclk,
@@ -426,13 +721,34 @@
{
struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);
int charge_period = 1300000; /* hardware default is 1300 ms */
+ u8 pwm_start_mid_z = 0;
int i, ret;
if (of_match_device(of_match_ptr(tas5086_dt_ids), codec->dev)) {
struct device_node *of_node = codec->dev->of_node;
of_property_read_u32(of_node, "ti,charge-period", &charge_period);
+
+ for (i = 0; i < 6; i++) {
+ char name[25];
+
+ snprintf(name, sizeof(name),
+ "ti,mid-z-channel-%d", i + 1);
+
+ if (of_get_property(of_node, name, NULL) != NULL)
+ pwm_start_mid_z |= 1 << i;
+ }
}
+ /*
+ * If any of the channels is configured to start in Mid-Z mode,
+ * configure 'part 1' of the PWM starts to use Mid-Z, and tell
+ * all configured mid-z channels to start start under 'part 1'.
+ */
+ if (pwm_start_mid_z)
+ regmap_write(priv->regmap, TAS5086_PWM_START,
+ TAS5086_PWM_START_MIDZ_FOR_START_1 |
+ pwm_start_mid_z);
+
/* lookup and set split-capacitor charge period */
if (charge_period == 0) {
regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE, 0);
@@ -490,6 +806,10 @@
.resume = tas5086_soc_resume,
.controls = tas5086_controls,
.num_controls = ARRAY_SIZE(tas5086_controls),
+ .dapm_widgets = tas5086_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tas5086_dapm_widgets),
+ .dapm_routes = tas5086_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(tas5086_dapm_routes),
};
static const struct i2c_device_id tas5086_i2c_id[] = {
@@ -500,14 +820,16 @@
static const struct regmap_config tas5086_regmap = {
.reg_bits = 8,
- .val_bits = 8,
- .max_register = ARRAY_SIZE(tas5086_reg_defaults),
+ .val_bits = 32,
+ .max_register = TAS5086_MAX_REGISTER,
.reg_defaults = tas5086_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(tas5086_reg_defaults),
.cache_type = REGCACHE_RBTREE,
.volatile_reg = tas5086_volatile_reg,
.writeable_reg = tas5086_writeable_reg,
.readable_reg = tas5086_accessible_reg,
+ .reg_read = tas5086_reg_read,
+ .reg_write = tas5086_reg_write,
};
static int tas5086_i2c_probe(struct i2c_client *i2c,
@@ -522,7 +844,7 @@
if (!priv)
return -ENOMEM;
- priv->regmap = devm_regmap_init_i2c(i2c, &tas5086_regmap);
+ priv->regmap = devm_regmap_init(dev, NULL, i2c, &tas5086_regmap);
if (IS_ERR(priv->regmap)) {
ret = PTR_ERR(priv->regmap);
dev_err(&i2c->dev, "Failed to create regmap: %d\n", ret);