ASoC: tas517x: add tas5707 support

Add support for the tas5707 audio power amplifier.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

3 files changed, 130 insertions, 1 deletions

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 53c2d726bedf..6d1674699385 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -959,8 +959,11 @@ config SND_SOC_TAS5086
 	depends on I2C
 
 config SND_SOC_TAS571X
-	tristate "Texas Instruments TAS5711/TAS5717/TAS5719/TAS5721 power amplifiers"
+	tristate "Texas Instruments TAS571x power amplifiers"
 	depends on I2C
+	help
+	  Enable support for Texas Instruments TAS5707, TAS5711, TAS5717,
+	  TAS5719 and TAS5721 power amplifiers
 
 config SND_SOC_TAS5720
 	tristate "Texas Instruments TAS5720 Mono Audio amplifier"
diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c
index 52f34c94ec25..ca2dfe12344e 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -7,6 +7,9 @@
  * TAS5721 support:
  * Copyright (C) 2016 Petr Kulhavy, Barix AG <petr@barix.com>
  *
+ * TAS5707 support:
+ * Copyright (C) 2018 Jerome Brunet, Baylibre SAS <jbrunet@baylibre.com>
+ *
  * 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
@@ -444,6 +447,111 @@ static const struct tas571x_chip tas5711_chip = {
 	.vol_reg_size			= 1,
 };
 
+static const struct regmap_range tas5707_volatile_regs_range[] = {
+	regmap_reg_range(TAS571X_CLK_CTRL_REG,  TAS571X_ERR_STATUS_REG),
+	regmap_reg_range(TAS571X_OSC_TRIM_REG,  TAS571X_OSC_TRIM_REG),
+	regmap_reg_range(TAS5707_CH1_BQ0_REG, TAS5707_CH2_BQ6_REG),
+};
+
+static const struct regmap_access_table tas5707_volatile_regs = {
+	.yes_ranges =	tas5707_volatile_regs_range,
+	.n_yes_ranges =	ARRAY_SIZE(tas5707_volatile_regs_range),
+
+};
+
+static const DECLARE_TLV_DB_SCALE(tas5707_volume_tlv, -7900, 50, 1);
+
+static const char * const tas5707_volume_slew_step_txt[] = {
+	"256", "512", "1024", "2048",
+};
+
+static const unsigned int tas5707_volume_slew_step_values[] = {
+	3, 0, 1, 2,
+};
+
+static SOC_VALUE_ENUM_SINGLE_DECL(tas5707_volume_slew_step_enum,
+				  TAS571X_VOL_CFG_REG, 0, 0x3,
+				  tas5707_volume_slew_step_txt,
+				  tas5707_volume_slew_step_values);
+
+static const struct snd_kcontrol_new tas5707_controls[] = {
+	SOC_SINGLE_TLV("Master Volume",
+		       TAS571X_MVOL_REG,
+		       0, 0xff, 1, tas5707_volume_tlv),
+	SOC_DOUBLE_R_TLV("Speaker Volume",
+			 TAS571X_CH1_VOL_REG,
+			 TAS571X_CH2_VOL_REG,
+			 0, 0xff, 1, tas5707_volume_tlv),
+	SOC_DOUBLE("Speaker Switch",
+		   TAS571X_SOFT_MUTE_REG,
+		   TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
+		   1, 1),
+
+	SOC_ENUM("Slew Rate Steps", tas5707_volume_slew_step_enum),
+
+	BIQUAD_COEFS("CH1 - Biquad 0", TAS5707_CH1_BQ0_REG),
+	BIQUAD_COEFS("CH1 - Biquad 1", TAS5707_CH1_BQ1_REG),
+	BIQUAD_COEFS("CH1 - Biquad 2", TAS5707_CH1_BQ2_REG),
+	BIQUAD_COEFS("CH1 - Biquad 3", TAS5707_CH1_BQ3_REG),
+	BIQUAD_COEFS("CH1 - Biquad 4", TAS5707_CH1_BQ4_REG),
+	BIQUAD_COEFS("CH1 - Biquad 5", TAS5707_CH1_BQ5_REG),
+	BIQUAD_COEFS("CH1 - Biquad 6", TAS5707_CH1_BQ6_REG),
+
+	BIQUAD_COEFS("CH2 - Biquad 0", TAS5707_CH2_BQ0_REG),
+	BIQUAD_COEFS("CH2 - Biquad 1", TAS5707_CH2_BQ1_REG),
+	BIQUAD_COEFS("CH2 - Biquad 2", TAS5707_CH2_BQ2_REG),
+	BIQUAD_COEFS("CH2 - Biquad 3", TAS5707_CH2_BQ3_REG),
+	BIQUAD_COEFS("CH2 - Biquad 4", TAS5707_CH2_BQ4_REG),
+	BIQUAD_COEFS("CH2 - Biquad 5", TAS5707_CH2_BQ5_REG),
+	BIQUAD_COEFS("CH2 - Biquad 6", TAS5707_CH2_BQ6_REG),
+};
+
+static const struct reg_default tas5707_reg_defaults[] = {
+	{TAS571X_CLK_CTRL_REG,		0x6c},
+	{TAS571X_DEV_ID_REG,		0x70},
+	{TAS571X_ERR_STATUS_REG,	0x00},
+	{TAS571X_SYS_CTRL_1_REG,	0xa0},
+	{TAS571X_SDI_REG,		0x05},
+	{TAS571X_SYS_CTRL_2_REG,	0x40},
+	{TAS571X_SOFT_MUTE_REG,		0x00},
+	{TAS571X_MVOL_REG,		0xff},
+	{TAS571X_CH1_VOL_REG,		0x30},
+	{TAS571X_CH2_VOL_REG,		0x30},
+	{TAS571X_VOL_CFG_REG,		0x91},
+	{TAS571X_MODULATION_LIMIT_REG,	0x02},
+	{TAS571X_IC_DELAY_CH1_REG,	0xac},
+	{TAS571X_IC_DELAY_CH2_REG,	0x54},
+	{TAS571X_IC_DELAY_CH3_REG,	0xac},
+	{TAS571X_IC_DELAY_CH4_REG,	0x54},
+	{TAS571X_START_STOP_PERIOD_REG,	0x0f},
+	{TAS571X_OSC_TRIM_REG,		0x82},
+	{TAS571X_BKND_ERR_REG,		0x02},
+	{TAS571X_INPUT_MUX_REG,		0x17772},
+	{TAS571X_PWM_MUX_REG,		0x1021345},
+};
+
+static const struct regmap_config tas5707_regmap_config = {
+	.reg_bits			= 8,
+	.val_bits			= 32,
+	.max_register			= 0xff,
+	.reg_read			= tas571x_reg_read,
+	.reg_write			= tas571x_reg_write,
+	.reg_defaults			= tas5707_reg_defaults,
+	.num_reg_defaults		= ARRAY_SIZE(tas5707_reg_defaults),
+	.cache_type			= REGCACHE_RBTREE,
+	.wr_table			= &tas571x_write_regs,
+	.volatile_table			= &tas5707_volatile_regs,
+};
+
+static const struct tas571x_chip tas5707_chip = {
+	.supply_names			= tas5711_supply_names,
+	.num_supply_names		= ARRAY_SIZE(tas5711_supply_names),
+	.controls			= tas5707_controls,
+	.num_controls			= ARRAY_SIZE(tas5707_controls),
+	.regmap_config			= &tas5707_regmap_config,
+	.vol_reg_size			= 1,
+};
+
 static const char *const tas5717_supply_names[] = {
 	"AVDD",
 	"DVDD",
@@ -775,6 +883,7 @@ static int tas571x_i2c_remove(struct i2c_client *client)
 }
 
 static const struct of_device_id tas571x_of_match[] = {
+	{ .compatible = "ti,tas5707", .data = &tas5707_chip, },
 	{ .compatible = "ti,tas5711", .data = &tas5711_chip, },
 	{ .compatible = "ti,tas5717", .data = &tas5717_chip, },
 	{ .compatible = "ti,tas5719", .data = &tas5717_chip, },
@@ -784,6 +893,7 @@ static const struct of_device_id tas571x_of_match[] = {
 MODULE_DEVICE_TABLE(of, tas571x_of_match);
 
 static const struct i2c_device_id tas571x_i2c_id[] = {
+	{ "tas5707", (kernel_ulong_t) &tas5707_chip },
 	{ "tas5711", (kernel_ulong_t) &tas5711_chip },
 	{ "tas5717", (kernel_ulong_t) &tas5717_chip },
 	{ "tas5719", (kernel_ulong_t) &tas5717_chip },
diff --git a/sound/soc/codecs/tas571x.h b/sound/soc/codecs/tas571x.h
index c45677bc26ad..bd23e89cfe79 100644
--- a/sound/soc/codecs/tas571x.h
+++ b/sound/soc/codecs/tas571x.h
@@ -53,6 +53,22 @@
 #define TAS571X_PWM_MUX_REG		0x25
 
 /* 20-byte biquad registers */
+#define TAS5707_CH1_BQ0_REG		0x29
+#define TAS5707_CH1_BQ1_REG		0x2a
+#define TAS5707_CH1_BQ2_REG		0x2b
+#define TAS5707_CH1_BQ3_REG		0x2c
+#define TAS5707_CH1_BQ4_REG		0x2d
+#define TAS5707_CH1_BQ5_REG		0x2e
+#define TAS5707_CH1_BQ6_REG		0x2f
+
+#define TAS5707_CH2_BQ0_REG		0x30
+#define TAS5707_CH2_BQ1_REG		0x31
+#define TAS5707_CH2_BQ2_REG		0x32
+#define TAS5707_CH2_BQ3_REG		0x33
+#define TAS5707_CH2_BQ4_REG		0x34
+#define TAS5707_CH2_BQ5_REG		0x35
+#define TAS5707_CH2_BQ6_REG		0x36
+
 #define TAS5717_CH1_BQ0_REG		0x26
 #define TAS5717_CH1_BQ1_REG		0x27
 #define TAS5717_CH1_BQ2_REG		0x28