@@ -210,6 +210,7 @@ config SND_SOC_ALL_CODECS
imply SND_SOC_TAS5086
imply SND_SOC_TAS571X
imply SND_SOC_TAS5720
+ imply SND_SOC_TAS5754M
imply SND_SOC_TAS6424
imply SND_SOC_TDA7419
imply SND_SOC_TFA9879
@@ -1419,6 +1420,13 @@ config SND_SOC_TAS5720
Enable support for Texas Instruments TAS5720L/M high-efficiency mono
Class-D audio power amplifiers.
+config SND_SOC_TAS5754M
+ tristate "Texas Instruments TAS5754M Digital Input Audio amplifier"
+ depends on I2C
+ help
+ Enable support for Texas Instruments TAS5754M digital input
+ Class-D audio power amplifiers.
+
config SND_SOC_TAS6424
tristate "Texas Instruments TAS6424 Quad-Channel Audio amplifier"
depends on I2C
@@ -227,6 +227,7 @@ snd-soc-sti-sas-objs := sti-sas.o
snd-soc-tas5086-objs := tas5086.o
snd-soc-tas571x-objs := tas571x.o
snd-soc-tas5720-objs := tas5720.o
+snd-soc-tas5754m-objs := tas5754m.o
snd-soc-tas6424-objs := tas6424.o
snd-soc-tda7419-objs := tda7419.o
snd-soc-tas2770-objs := tas2770.o
@@ -555,6 +556,7 @@ obj-$(CONFIG_SND_SOC_TAS2764) += snd-soc-tas2764.o
obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o
obj-$(CONFIG_SND_SOC_TAS571X) += snd-soc-tas571x.o
obj-$(CONFIG_SND_SOC_TAS5720) += snd-soc-tas5720.o
+obj-$(CONFIG_SND_SOC_TAS5754M) += snd-soc-tas5754m.o
obj-$(CONFIG_SND_SOC_TAS6424) += snd-soc-tas6424.o
obj-$(CONFIG_SND_SOC_TDA7419) += snd-soc-tda7419.o
obj-$(CONFIG_SND_SOC_TAS2770) += snd-soc-tas2770.o
new file mode 100644
@@ -0,0 +1,547 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for the TAS5754M Audio Amplifier in Master mode (only)
+ * supports only standard audio frequencies 44.1 to 192 ksps
+ *
+ * Author: Joerg Schambacher <joerg@hifiberry.com>
+ * with fragments from Andy Liu <andy-liu@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/clk.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/delay.h>
+
+#include <sound/tlv.h>
+#include <sound/soc.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+
+#include "tas5754m.h"
+
+#define TAS5754M_RATES (SNDRV_PCM_RATE_48000 | \
+ SNDRV_PCM_RATE_96000 | \
+ SNDRV_PCM_RATE_192000 | \
+ SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_88200 | \
+ SNDRV_PCM_RATE_176400)
+#define TAS5754M_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S20_LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+
+static const struct reg_sequence tas5754m_init_sequence[] = {
+ { TAS5754M_RESET, 0x00 },
+ { TAS5754M_MUTE, 0x11 },
+ { TAS5754M_POWER, 0x00 },
+ { TAS5754M_PLL_EN, 0x00 },
+ { TAS5754M_RESET, 0x00 },
+ { TAS5754M_GPIO_OUTPUT_3, 0x02 },
+ { TAS5754M_GPIO_OUTPUT_4, 0x02 },
+ { TAS5754M_GPIO_OUTPUT_6, 0x02 },
+ { TAS5754M_GPIO_EN, 0x2c },
+ { TAS5754M_GPIO_CONTROL_1, 0x04 },
+ { TAS5754M_BCLK_LRCLK_CFG, 0x11 },
+ { TAS5754M_MASTER_MODE, 0x7c },
+ { TAS5754M_ERROR_DETECT, 0x77 },
+ { TAS5754M_PLL_EN, 0x01 },
+ { TAS5754M_PLL_REF, 0x00 },
+ { TAS5754M_PLL_COEFF_0, 0x03 },
+ { TAS5754M_PLL_COEFF_1, 0x0c },
+ { TAS5754M_PLL_COEFF_2, 0x00 },
+ { TAS5754M_PLL_COEFF_3, 0x00 },
+ { TAS5754M_PLL_COEFF_4, 0x00 },
+ { TAS5754M_DAC_REF, 0x30 },
+ { TAS5754M_DSP_CLKDIV, 0x01 },
+ { TAS5754M_DAC_CLKDIV, 0x0f },
+ { TAS5754M_NCP_CLKDIV, 0x03 },
+ { TAS5754M_OSR_CLKDIV, 0x00 },
+ { TAS5754M_FS_SPEED_MODE, 0x00 },
+ { TAS5754M_MASTER_CLKDIV_1, 0x0f },
+ { TAS5754M_MASTER_CLKDIV_2, 0x1f },
+ { TAS5754M_I2S_1, 0x00 },
+ { TAS5754M_I2S_2, 0x01 },
+ { TAS5754M_PLL_EN, 0x01 },
+ { TAS5754M_MASTER_MODE, 0x7f },
+ { TAS5754M_MUTE, 0x11 },
+};
+
+static const struct reg_default tas5754m_reg_defaults[] = {
+ { TAS5754M_RESET, 0x00 },
+ { TAS5754M_POWER, 0x00 },
+ { TAS5754M_MUTE, 0x00 },
+ { TAS5754M_DSP, 0x00 },
+ { TAS5754M_PLL_REF, 0x00 },
+ { TAS5754M_DAC_REF, 0x00 },
+ { TAS5754M_DAC_ROUTING, 0x11 },
+ { TAS5754M_DSP_PROGRAM, 0x01 },
+ { TAS5754M_CLKDET, 0x00 },
+ { TAS5754M_AUTO_MUTE, 0x00 },
+ { TAS5754M_ERROR_DETECT, 0x00 },
+ { TAS5754M_DIGITAL_VOLUME_1, 0x00 },
+ { TAS5754M_DIGITAL_VOLUME_2, 0x30 },
+ { TAS5754M_DIGITAL_VOLUME_3, 0x30 },
+ { TAS5754M_DIGITAL_MUTE_1, 0x22 },
+ { TAS5754M_DIGITAL_MUTE_2, 0x00 },
+ { TAS5754M_DIGITAL_MUTE_3, 0x07 },
+ { TAS5754M_OUTPUT_AMPLITUDE, 0x00 },
+ { TAS5754M_ANALOG_GAIN_CTRL, 0x00 },
+ { TAS5754M_UNDERVOLTAGE_PROT, 0x00 },
+ { TAS5754M_ANALOG_MUTE_CTRL, 0x00 },
+ { TAS5754M_ANALOG_GAIN_BOOST, 0x00 },
+ { TAS5754M_VCOM_CTRL_1, 0x00 },
+ { TAS5754M_VCOM_CTRL_2, 0x01 },
+ { TAS5754M_BCLK_LRCLK_CFG, 0x00 },
+ { TAS5754M_MASTER_MODE, 0x7c },
+ { TAS5754M_GPIO_DACIN, 0x00 },
+ { TAS5754M_GPIO_PLLIN, 0x00 },
+ { TAS5754M_SYNCHRONIZE, 0x10 },
+ { TAS5754M_PLL_COEFF_0, 0x00 },
+ { TAS5754M_PLL_COEFF_1, 0x00 },
+ { TAS5754M_PLL_COEFF_2, 0x00 },
+ { TAS5754M_PLL_COEFF_3, 0x00 },
+ { TAS5754M_PLL_COEFF_4, 0x00 },
+ { TAS5754M_DSP_CLKDIV, 0x00 },
+ { TAS5754M_DAC_CLKDIV, 0x00 },
+ { TAS5754M_NCP_CLKDIV, 0x00 },
+ { TAS5754M_OSR_CLKDIV, 0x00 },
+ { TAS5754M_MASTER_CLKDIV_1, 0x00 },
+ { TAS5754M_MASTER_CLKDIV_2, 0x00 },
+ { TAS5754M_FS_SPEED_MODE, 0x00 },
+ { TAS5754M_IDAC_1, 0x01 },
+ { TAS5754M_IDAC_2, 0x00 },
+};
+
+static bool tas5754m_readable(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TAS5754M_RESET:
+ case TAS5754M_POWER:
+ case TAS5754M_MUTE:
+ case TAS5754M_PLL_EN:
+ case TAS5754M_SPI_MISO_FUNCTION:
+ case TAS5754M_DSP:
+ case TAS5754M_GPIO_EN:
+ case TAS5754M_BCLK_LRCLK_CFG:
+ case TAS5754M_DSP_GPIO_INPUT:
+ case TAS5754M_MASTER_MODE:
+ case TAS5754M_PLL_REF:
+ case TAS5754M_DAC_REF:
+ case TAS5754M_GPIO_DACIN:
+ case TAS5754M_GPIO_PLLIN:
+ case TAS5754M_SYNCHRONIZE:
+ case TAS5754M_PLL_COEFF_0:
+ case TAS5754M_PLL_COEFF_1:
+ case TAS5754M_PLL_COEFF_2:
+ case TAS5754M_PLL_COEFF_3:
+ case TAS5754M_PLL_COEFF_4:
+ case TAS5754M_DSP_CLKDIV:
+ case TAS5754M_DAC_CLKDIV:
+ case TAS5754M_NCP_CLKDIV:
+ case TAS5754M_OSR_CLKDIV:
+ case TAS5754M_MASTER_CLKDIV_1:
+ case TAS5754M_MASTER_CLKDIV_2:
+ case TAS5754M_FS_SPEED_MODE:
+ case TAS5754M_IDAC_1:
+ case TAS5754M_IDAC_2:
+ case TAS5754M_ERROR_DETECT:
+ case TAS5754M_I2S_1:
+ case TAS5754M_I2S_2:
+ case TAS5754M_DAC_ROUTING:
+ case TAS5754M_DSP_PROGRAM:
+ case TAS5754M_CLKDET:
+ case TAS5754M_AUTO_MUTE:
+ case TAS5754M_DIGITAL_VOLUME_1:
+ case TAS5754M_DIGITAL_VOLUME_2:
+ case TAS5754M_DIGITAL_VOLUME_3:
+ case TAS5754M_DIGITAL_MUTE_1:
+ case TAS5754M_DIGITAL_MUTE_2:
+ case TAS5754M_DIGITAL_MUTE_3:
+ case TAS5754M_GPIO_OUTPUT_1:
+ case TAS5754M_GPIO_OUTPUT_2:
+ case TAS5754M_GPIO_OUTPUT_3:
+ case TAS5754M_GPIO_OUTPUT_4:
+ case TAS5754M_GPIO_OUTPUT_5:
+ case TAS5754M_GPIO_OUTPUT_6:
+ case TAS5754M_GPIO_CONTROL_1:
+ case TAS5754M_GPIO_CONTROL_2:
+ case TAS5754M_OVERFLOW:
+ case TAS5754M_RATE_DET_1:
+ case TAS5754M_RATE_DET_2:
+ case TAS5754M_RATE_DET_3:
+ case TAS5754M_RATE_DET_4:
+ case TAS5754M_CLOCK_STATUS:
+ case TAS5754M_ANALOG_MUTE_DET:
+ case TAS5754M_GPIN:
+ case TAS5754M_DIGITAL_MUTE_DET:
+ case TAS5754M_OUTPUT_AMPLITUDE:
+ case TAS5754M_ANALOG_GAIN_CTRL:
+ case TAS5754M_UNDERVOLTAGE_PROT:
+ case TAS5754M_ANALOG_MUTE_CTRL:
+ case TAS5754M_ANALOG_GAIN_BOOST:
+ case TAS5754M_VCOM_CTRL_1:
+ case TAS5754M_VCOM_CTRL_2:
+ case TAS5754M_CRAM_CTRL:
+ case TAS5754M_FLEX_A:
+ case TAS5754M_FLEX_B:
+ return true;
+ default:
+ return reg < 0x7f;
+ }
+}
+
+static bool tas5754m_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TAS5754M_PLL_EN:
+ case TAS5754M_OVERFLOW:
+ case TAS5754M_RATE_DET_1:
+ case TAS5754M_RATE_DET_2:
+ case TAS5754M_RATE_DET_3:
+ case TAS5754M_RATE_DET_4:
+ case TAS5754M_CLOCK_STATUS:
+ case TAS5754M_ANALOG_MUTE_DET:
+ case TAS5754M_GPIN:
+ case TAS5754M_DIGITAL_MUTE_DET:
+ case TAS5754M_CRAM_CTRL:
+ return true;
+ default:
+ return reg < 0x7f;
+ }
+}
+
+struct tas5754m_priv {
+ struct regmap *regmap;
+ struct clk *sclk;
+};
+
+static const struct regmap_range_cfg tas5754m_range = {
+ .name = "Pages",
+ .range_min = TAS5754M_VIRT_BASE,
+ .range_max = TAS5754M_MAX_REGISTER,
+ .selector_reg = TAS5754M_PAGE,
+ .selector_mask = 0x7f,
+ .window_start = 0,
+ .window_len = 128,
+};
+
+const struct regmap_config tas5754m_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .ranges = &tas5754m_range,
+ .num_ranges = 1,
+ .max_register = TAS5754M_MAX_REGISTER,
+
+ .reg_defaults = tas5754m_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(tas5754m_reg_defaults),
+ .readable_reg = tas5754m_readable,
+ .volatile_reg = tas5754m_volatile,
+
+ .cache_type = REGCACHE_RBTREE,
+};
+EXPORT_SYMBOL_GPL(tas5754m_regmap);
+
+static const DECLARE_TLV_DB_SCALE(digital_tlv, -10350, 50, 1);
+static const DECLARE_TLV_DB_SCALE(analog_tlv, -600, 600, 0);
+
+static const struct snd_kcontrol_new tas5754m_controls[] = {
+SOC_DOUBLE_R_TLV("Digital Playback Volume", TAS5754M_DIGITAL_VOLUME_2,
+ TAS5754M_DIGITAL_VOLUME_3, 0, 255, 1, digital_tlv),
+SOC_DOUBLE_TLV("Analog Playback Volume", TAS5754M_ANALOG_GAIN_CTRL,
+ TAS5754M_LAGN_SHIFT, TAS5754M_RAGN_SHIFT, 1, 1, analog_tlv),
+};
+
+static int tas5754m_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ struct tas5754m_priv *tas5754m =
+ snd_soc_component_get_drvdata(component);
+ int ret;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ case SND_SOC_BIAS_PREPARE:
+ break;
+
+ case SND_SOC_BIAS_STANDBY:
+ ret = regmap_update_bits(tas5754m->regmap,
+ TAS5754M_POWER, TAS5754M_RQST, 0);
+ if (ret != 0) {
+ dev_err(component->dev,
+ "Failed to remove standby: %d\n", ret);
+ return ret;
+ }
+ break;
+
+ case SND_SOC_BIAS_OFF:
+ ret = regmap_update_bits(tas5754m->regmap,
+ TAS5754M_POWER, TAS5754M_RQST, TAS5754M_RQST);
+ if (ret != 0) {
+ dev_err(component->dev,
+ "Failed to request standby: %d\n", ret);
+ return ret;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static int tas5754m_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct tas5754m_priv *tas5754m =
+ snd_soc_component_get_drvdata(component);
+ unsigned long bclk;
+ unsigned long mclk;
+ int sample_len;
+ int bclk_div;
+ int lrclk_div;
+ int alen;
+ int ret;
+
+ switch (params_width(params)) {
+ case 16:
+ sample_len = 16;
+ alen = TAS5754M_ALEN_16;
+ break;
+ case 20:
+ sample_len = 32;
+ alen = TAS5754M_ALEN_20;
+ break;
+ case 24:
+ sample_len = 32;
+ alen = TAS5754M_ALEN_24;
+ break;
+ case 32:
+ sample_len = 32;
+ alen = TAS5754M_ALEN_32;
+ break;
+ default:
+ dev_err(component->dev, "Unsupported sample size: %d\n",
+ params_width(params));
+ return -EINVAL;
+ }
+ ret = regmap_update_bits(tas5754m->regmap, TAS5754M_I2S_1, alen, alen);
+ if (ret != 0) {
+ dev_err(component->dev,
+ "Cannot set sample size: %d\n", ret);
+ return ret;
+ }
+
+ switch (params_rate(params)) {
+ case 44100:
+ case 48000:
+ ret = regmap_write(tas5754m->regmap,
+ TAS5754M_FS_SPEED_MODE, TAS5754M_FSSP_48KHZ);
+ break;
+ case 88200:
+ case 96000:
+ ret = regmap_write(tas5754m->regmap,
+ TAS5754M_FS_SPEED_MODE, TAS5754M_FSSP_96KHZ);
+ break;
+ case 176400:
+ case 192000:
+ ret = regmap_write(tas5754m->regmap,
+ TAS5754M_FS_SPEED_MODE, TAS5754M_FSSP_192KHZ);
+ break;
+ default:
+ dev_err(component->dev, "Sample rate not supported: %d\n",
+ params_rate(params));
+ return -EINVAL;
+ }
+ if (ret != 0) {
+ dev_err(component->dev, "Failed to config PLL\n");
+ return ret;
+ }
+
+
+ mclk = clk_get_rate(tas5754m->sclk);
+ bclk = sample_len * 2 * params_rate(params);
+ bclk_div = mclk / bclk;
+ lrclk_div = sample_len * 2;
+
+ // stop LR / SCLK clocks
+ ret = regmap_write(tas5754m->regmap, TAS5754M_MASTER_MODE, 0x7c);
+
+ // set SCLK divider
+ ret |= regmap_write(tas5754m->regmap, TAS5754M_MASTER_CLKDIV_1,
+ bclk_div - 1);
+
+ // set LRCLK divider
+ ret |= regmap_write(tas5754m->regmap, TAS5754M_MASTER_CLKDIV_2,
+ lrclk_div - 1);
+
+ // restart LR / SCLK clocks
+ ret |= regmap_write(tas5754m->regmap, TAS5754M_MASTER_MODE, 0x7f);
+ if (ret != 0) {
+ dev_err(component->dev, "Failed to config PLL\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver tas5754m_soc_component = {
+ .set_bias_level = tas5754m_set_bias_level,
+ .idle_bias_on = true,
+ .controls = tas5754m_controls,
+ .num_controls = ARRAY_SIZE(tas5754m_controls),
+};
+
+static int tas5754m_mute(struct snd_soc_dai *dai, int mute, int stream)
+{
+ struct snd_soc_component *component = dai->component;
+
+ if (mute) {
+ snd_soc_component_write(component, TAS5754M_MUTE, 0x11);
+ } else {
+ usleep_range(1000, 2000);
+ snd_soc_component_write(component, TAS5754M_MUTE, 0x00);
+ }
+ return 0;
+}
+
+static const struct snd_soc_dai_ops tas5754m_dai_ops = {
+ .mute_stream = tas5754m_mute,
+ .hw_params = tas5754m_hw_params,
+};
+
+static struct snd_soc_dai_driver tas5754m_dai = {
+ .name = "tas5754m-amplifier",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = TAS5754M_RATES,
+ .formats = TAS5754M_FORMATS,
+ },
+ .ops = &tas5754m_dai_ops,
+};
+
+static int tas5754m_probe(struct device *dev, struct regmap *regmap)
+{
+ struct tas5754m_priv *tas5754m;
+ int ret;
+
+ tas5754m = devm_kzalloc(dev, sizeof(struct tas5754m_priv), GFP_KERNEL);
+ if (!tas5754m)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, tas5754m);
+ tas5754m->regmap = regmap;
+
+ ret = regmap_multi_reg_write(regmap, tas5754m_init_sequence,
+ ARRAY_SIZE(tas5754m_init_sequence));
+
+ if (ret != 0) {
+ dev_err(dev, "Failed to initialize TAS5754M: %d\n", ret);
+ goto err;
+ }
+
+ tas5754m->sclk = devm_clk_get(dev, NULL);
+ if (PTR_ERR(tas5754m->sclk) == -EPROBE_DEFER) {
+ ret = -EPROBE_DEFER;
+ goto err;
+ }
+ if (!IS_ERR(tas5754m->sclk)) {
+ ret = clk_prepare_enable(tas5754m->sclk);
+ if (ret != 0) {
+ dev_err(dev, "Failed to enable SCLK: %d\n", ret);
+ goto err;
+ }
+ }
+
+ ret = snd_soc_register_component(dev,
+ &tas5754m_soc_component, &tas5754m_dai, 1);
+ if (ret != 0) {
+ dev_err(dev, "Failed to register CODEC: %d\n", ret);
+ goto err;
+ }
+
+ return 0;
+
+err:
+ return ret;
+
+}
+
+static int tas5754m_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
+{
+ struct regmap *regmap;
+ struct regmap_config config = tas5754m_regmap;
+
+ /* enable auto-increment mode */
+ config.read_flag_mask = 0x80;
+ config.write_flag_mask = 0x80;
+
+ regmap = devm_regmap_init_i2c(i2c, &config);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ return tas5754m_probe(&i2c->dev, regmap);
+}
+
+static int tas5754m_remove(struct device *dev)
+{
+ snd_soc_unregister_component(dev);
+
+ return 0;
+}
+
+static int tas5754m_i2c_remove(struct i2c_client *i2c)
+{
+ tas5754m_remove(&i2c->dev);
+
+ return 0;
+}
+
+static const struct i2c_device_id tas5754m_i2c_id[] = {
+ { "tas5754m", },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tas5754m_i2c_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id tas5754m_of_match[] = {
+ { .compatible = "ti,tas5754m", },
+ { .compatible = "ti,tas5756m", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, tas5754m_of_match);
+#endif
+
+static struct i2c_driver tas5754m_i2c_driver = {
+ .probe = tas5754m_i2c_probe,
+ .remove = tas5754m_i2c_remove,
+ .id_table = tas5754m_i2c_id,
+ .driver = {
+ .name = "tas5754m",
+ .of_match_table = tas5754m_of_match,
+ },
+};
+
+module_i2c_driver(tas5754m_i2c_driver);
+
+MODULE_AUTHOR("Joerg Schambacher <joerg@hifiberry.com>");
+MODULE_DESCRIPTION("TAS5754M Audio Amplifier Driver - Master mode only");
+MODULE_LICENSE("GPL");
new file mode 100644
@@ -0,0 +1,259 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Driver for the TAS5754M DAC+amplifier combo devices
+ *
+ * Author: (copied from pcm512x.h)
+ * Mark Brown <broonie@kernel.org>
+ * Copyright 2014 Linaro Ltd
+ */
+
+#ifndef _SND_SOC_TAS5754M
+#define _SND_SOC_TAS5754M
+
+#include <linux/pm.h>
+#include <linux/regmap.h>
+
+#define TAS5754M_VIRT_BASE 0x000
+#define TAS5754M_PAGE_LEN 0x80
+#define TAS5754M_PAGE_BASE(n) (TAS5754M_VIRT_BASE + (TAS5754M_PAGE_LEN * n))
+
+#define TAS5754M_PAGE 0
+
+#define TAS5754M_RESET (TAS5754M_PAGE_BASE(0) + 1)
+#define TAS5754M_POWER (TAS5754M_PAGE_BASE(0) + 2)
+#define TAS5754M_MUTE (TAS5754M_PAGE_BASE(0) + 3)
+#define TAS5754M_PLL_EN (TAS5754M_PAGE_BASE(0) + 4)
+#define TAS5754M_SPI_MISO_FUNCTION (TAS5754M_PAGE_BASE(0) + 6)
+#define TAS5754M_DSP (TAS5754M_PAGE_BASE(0) + 7)
+#define TAS5754M_GPIO_EN (TAS5754M_PAGE_BASE(0) + 8)
+#define TAS5754M_BCLK_LRCLK_CFG (TAS5754M_PAGE_BASE(0) + 9)
+#define TAS5754M_DSP_GPIO_INPUT (TAS5754M_PAGE_BASE(0) + 10)
+#define TAS5754M_MASTER_MODE (TAS5754M_PAGE_BASE(0) + 12)
+#define TAS5754M_PLL_REF (TAS5754M_PAGE_BASE(0) + 13)
+#define TAS5754M_DAC_REF (TAS5754M_PAGE_BASE(0) + 14)
+#define TAS5754M_GPIO_DACIN (TAS5754M_PAGE_BASE(0) + 16)
+#define TAS5754M_GPIO_PLLIN (TAS5754M_PAGE_BASE(0) + 18)
+#define TAS5754M_SYNCHRONIZE (TAS5754M_PAGE_BASE(0) + 19)
+#define TAS5754M_PLL_COEFF_0 (TAS5754M_PAGE_BASE(0) + 20)
+#define TAS5754M_PLL_COEFF_1 (TAS5754M_PAGE_BASE(0) + 21)
+#define TAS5754M_PLL_COEFF_2 (TAS5754M_PAGE_BASE(0) + 22)
+#define TAS5754M_PLL_COEFF_3 (TAS5754M_PAGE_BASE(0) + 23)
+#define TAS5754M_PLL_COEFF_4 (TAS5754M_PAGE_BASE(0) + 24)
+#define TAS5754M_DSP_CLKDIV (TAS5754M_PAGE_BASE(0) + 27)
+#define TAS5754M_DAC_CLKDIV (TAS5754M_PAGE_BASE(0) + 28)
+#define TAS5754M_NCP_CLKDIV (TAS5754M_PAGE_BASE(0) + 29)
+#define TAS5754M_OSR_CLKDIV (TAS5754M_PAGE_BASE(0) + 30)
+#define TAS5754M_MASTER_CLKDIV_1 (TAS5754M_PAGE_BASE(0) + 32)
+#define TAS5754M_MASTER_CLKDIV_2 (TAS5754M_PAGE_BASE(0) + 33)
+#define TAS5754M_FS_SPEED_MODE (TAS5754M_PAGE_BASE(0) + 34)
+#define TAS5754M_IDAC_1 (TAS5754M_PAGE_BASE(0) + 35)
+#define TAS5754M_IDAC_2 (TAS5754M_PAGE_BASE(0) + 36)
+#define TAS5754M_ERROR_DETECT (TAS5754M_PAGE_BASE(0) + 37)
+#define TAS5754M_I2S_1 (TAS5754M_PAGE_BASE(0) + 40)
+#define TAS5754M_I2S_2 (TAS5754M_PAGE_BASE(0) + 41)
+#define TAS5754M_DAC_ROUTING (TAS5754M_PAGE_BASE(0) + 42)
+#define TAS5754M_DSP_PROGRAM (TAS5754M_PAGE_BASE(0) + 43)
+#define TAS5754M_CLKDET (TAS5754M_PAGE_BASE(0) + 44)
+#define TAS5754M_AUTO_MUTE (TAS5754M_PAGE_BASE(0) + 59)
+#define TAS5754M_DIGITAL_VOLUME_1 (TAS5754M_PAGE_BASE(0) + 60)
+#define TAS5754M_DIGITAL_VOLUME_2 (TAS5754M_PAGE_BASE(0) + 61)
+#define TAS5754M_DIGITAL_VOLUME_3 (TAS5754M_PAGE_BASE(0) + 62)
+#define TAS5754M_DIGITAL_MUTE_1 (TAS5754M_PAGE_BASE(0) + 63)
+#define TAS5754M_DIGITAL_MUTE_2 (TAS5754M_PAGE_BASE(0) + 64)
+#define TAS5754M_DIGITAL_MUTE_3 (TAS5754M_PAGE_BASE(0) + 65)
+#define TAS5754M_GPIO_OUTPUT_1 (TAS5754M_PAGE_BASE(0) + 80)
+#define TAS5754M_GPIO_OUTPUT_2 (TAS5754M_PAGE_BASE(0) + 81)
+#define TAS5754M_GPIO_OUTPUT_3 (TAS5754M_PAGE_BASE(0) + 82)
+#define TAS5754M_GPIO_OUTPUT_4 (TAS5754M_PAGE_BASE(0) + 83)
+#define TAS5754M_GPIO_OUTPUT_5 (TAS5754M_PAGE_BASE(0) + 84)
+#define TAS5754M_GPIO_OUTPUT_6 (TAS5754M_PAGE_BASE(0) + 85)
+#define TAS5754M_GPIO_CONTROL_1 (TAS5754M_PAGE_BASE(0) + 86)
+#define TAS5754M_GPIO_CONTROL_2 (TAS5754M_PAGE_BASE(0) + 87)
+#define TAS5754M_OVERFLOW (TAS5754M_PAGE_BASE(0) + 90)
+#define TAS5754M_RATE_DET_1 (TAS5754M_PAGE_BASE(0) + 91)
+#define TAS5754M_RATE_DET_2 (TAS5754M_PAGE_BASE(0) + 92)
+#define TAS5754M_RATE_DET_3 (TAS5754M_PAGE_BASE(0) + 93)
+#define TAS5754M_RATE_DET_4 (TAS5754M_PAGE_BASE(0) + 94)
+#define TAS5754M_CLOCK_STATUS (TAS5754M_PAGE_BASE(0) + 95)
+#define TAS5754M_ANALOG_MUTE_DET (TAS5754M_PAGE_BASE(0) + 108)
+#define TAS5754M_GPIN (TAS5754M_PAGE_BASE(0) + 119)
+#define TAS5754M_DIGITAL_MUTE_DET (TAS5754M_PAGE_BASE(0) + 120)
+
+#define TAS5754M_OUTPUT_AMPLITUDE (TAS5754M_PAGE_BASE(1) + 1)
+#define TAS5754M_ANALOG_GAIN_CTRL (TAS5754M_PAGE_BASE(1) + 2)
+#define TAS5754M_UNDERVOLTAGE_PROT (TAS5754M_PAGE_BASE(1) + 5)
+#define TAS5754M_ANALOG_MUTE_CTRL (TAS5754M_PAGE_BASE(1) + 6)
+#define TAS5754M_ANALOG_GAIN_BOOST (TAS5754M_PAGE_BASE(1) + 7)
+#define TAS5754M_VCOM_CTRL_1 (TAS5754M_PAGE_BASE(1) + 8)
+#define TAS5754M_VCOM_CTRL_2 (TAS5754M_PAGE_BASE(1) + 9)
+
+#define TAS5754M_CRAM_CTRL (TAS5754M_PAGE_BASE(44) + 1)
+
+#define TAS5754M_FLEX_A (TAS5754M_PAGE_BASE(253) + 63)
+#define TAS5754M_FLEX_B (TAS5754M_PAGE_BASE(253) + 64)
+
+#define TAS5754M_MAX_REGISTER (TAS5754M_PAGE_BASE(253) + 64)
+
+/* Page 0, Register 1 - reset */
+#define TAS5754M_RSTR (1 << 0)
+#define TAS5754M_RSTM (1 << 4)
+
+/* Page 0, Register 2 - power */
+#define TAS5754M_RQPD (1 << 0)
+#define TAS5754M_RQPD_SHIFT 0
+#define TAS5754M_RQST (1 << 4)
+#define TAS5754M_RQST_SHIFT 4
+
+/* Page 0, Register 3 - mute */
+#define TAS5754M_RQMR (1 << 0)
+#define TAS5754M_RQMR_SHIFT 0
+#define TAS5754M_RQML (1 << 4)
+#define TAS5754M_RQML_SHIFT 4
+
+/* Page 0, Register 4 - PLL */
+#define TAS5754M_PLLE (1 << 0)
+#define TAS5754M_PLLE_SHIFT 0
+#define TAS5754M_PLCK (1 << 4)
+#define TAS5754M_PLCK_SHIFT 4
+
+/* Page 0, Register 7 - DSP */
+#define TAS5754M_SDSL (1 << 0)
+#define TAS5754M_SDSL_SHIFT 0
+#define TAS5754M_DEMP (1 << 4)
+#define TAS5754M_DEMP_SHIFT 4
+
+/* Page 0, Register 8 - GPIO output enable */
+#define TAS5754M_G1OE (1 << 0)
+#define TAS5754M_G2OE (1 << 1)
+#define TAS5754M_G3OE (1 << 2)
+#define TAS5754M_G4OE (1 << 3)
+#define TAS5754M_G5OE (1 << 4)
+#define TAS5754M_G6OE (1 << 5)
+
+/* Page 0, Register 9 - BCK, LRCLK configuration */
+#define TAS5754M_LRKO (1 << 0)
+#define TAS5754M_LRKO_SHIFT 0
+#define TAS5754M_BCKO (1 << 4)
+#define TAS5754M_BCKO_SHIFT 4
+#define TAS5754M_BCKP (1 << 5)
+#define TAS5754M_BCKP_SHIFT 5
+
+/* Page 0, Register 12 - Master mode BCK, LRCLK reset */
+#define TAS5754M_RLRK (1 << 0)
+#define TAS5754M_RLRK_SHIFT 0
+#define TAS5754M_RBCK (1 << 1)
+#define TAS5754M_RBCK_SHIFT 1
+
+/* Page 0, Register 13 - PLL reference */
+#define TAS5754M_SREF (7 << 4)
+#define TAS5754M_SREF_SHIFT 4
+#define TAS5754M_SREF_SCK (0 << 4)
+#define TAS5754M_SREF_BCK (1 << 4)
+#define TAS5754M_SREF_GPIO (3 << 4)
+
+/* Page 0, Register 14 - DAC reference */
+#define TAS5754M_SDAC (7 << 4)
+#define TAS5754M_SDAC_SHIFT 4
+#define TAS5754M_SDAC_MCK (0 << 4)
+#define TAS5754M_SDAC_PLL (1 << 4)
+#define TAS5754M_SDAC_SCK (3 << 4)
+#define TAS5754M_SDAC_BCK (4 << 4)
+#define TAS5754M_SDAC_GPIO (5 << 4)
+
+/* Page 0, Register 16, 18 - GPIO source for DAC, PLL */
+#define TAS5754M_GREF (7 << 0)
+#define TAS5754M_GREF_SHIFT 0
+#define TAS5754M_GREF_GPIO1 (0 << 0)
+#define TAS5754M_GREF_GPIO2 (1 << 0)
+#define TAS5754M_GREF_GPIO3 (2 << 0)
+#define TAS5754M_GREF_GPIO4 (3 << 0)
+#define TAS5754M_GREF_GPIO5 (4 << 0)
+#define TAS5754M_GREF_GPIO6 (5 << 0)
+
+/* Page 0, Register 19 - synchronize */
+#define TAS5754M_RQSY (1 << 0)
+#define TAS5754M_RQSY_RESUME (0 << 0)
+#define TAS5754M_RQSY_HALT (1 << 0)
+
+/* Page 0, Register 34 - fs speed mode */
+#define TAS5754M_FSSP (3 << 0)
+#define TAS5754M_FSSP_SHIFT 0
+#define TAS5754M_FSSP_48KHZ (0 << 0)
+#define TAS5754M_FSSP_96KHZ (1 << 0)
+#define TAS5754M_FSSP_192KHZ (2 << 0)
+#define TAS5754M_FSSP_384KHZ (3 << 0)
+
+/* Page 0, Register 37 - Error detection */
+#define TAS5754M_IPLK (1 << 0)
+#define TAS5754M_DCAS (1 << 1)
+#define TAS5754M_IDCM (1 << 2)
+#define TAS5754M_IDCH (1 << 3)
+#define TAS5754M_IDSK (1 << 4)
+#define TAS5754M_IDBK (1 << 5)
+#define TAS5754M_IDFS (1 << 6)
+
+/* Page 0, Register 40 - I2S configuration */
+#define TAS5754M_ALEN (3 << 0)
+#define TAS5754M_ALEN_SHIFT 0
+#define TAS5754M_ALEN_16 (0 << 0)
+#define TAS5754M_ALEN_20 (1 << 0)
+#define TAS5754M_ALEN_24 (2 << 0)
+#define TAS5754M_ALEN_32 (3 << 0)
+#define TAS5754M_AFMT (3 << 4)
+#define TAS5754M_AFMT_SHIFT 4
+#define TAS5754M_AFMT_I2S (0 << 4)
+#define TAS5754M_AFMT_DSP (1 << 4)
+#define TAS5754M_AFMT_RTJ (2 << 4)
+#define TAS5754M_AFMT_LTJ (3 << 4)
+
+/* Page 0, Register 42 - DAC routing */
+#define TAS5754M_AUPR_SHIFT 0
+#define TAS5754M_AUPL_SHIFT 4
+
+/* Page 0, Register 59 - auto mute */
+#define TAS5754M_ATMR_SHIFT 0
+#define TAS5754M_ATML_SHIFT 4
+
+/* Page 0, Register 63 - ramp rates */
+#define TAS5754M_VNDF_SHIFT 6
+#define TAS5754M_VNDS_SHIFT 4
+#define TAS5754M_VNUF_SHIFT 2
+#define TAS5754M_VNUS_SHIFT 0
+
+/* Page 0, Register 64 - emergency ramp rates */
+#define TAS5754M_VEDF_SHIFT 6
+#define TAS5754M_VEDS_SHIFT 4
+
+/* Page 0, Register 65 - Digital mute enables */
+#define TAS5754M_ACTL_SHIFT 2
+#define TAS5754M_AMLE_SHIFT 1
+#define TAS5754M_AMRE_SHIFT 0
+
+/* Page 0, Register 80-85, GPIO output selection */
+#define TAS5754M_GxSL (31 << 0)
+#define TAS5754M_GxSL_SHIFT 0
+#define TAS5754M_GxSL_OFF (0 << 0)
+#define TAS5754M_GxSL_DSP (1 << 0)
+#define TAS5754M_GxSL_REG (2 << 0)
+#define TAS5754M_GxSL_AMUTB (3 << 0)
+#define TAS5754M_GxSL_AMUTL (4 << 0)
+#define TAS5754M_GxSL_AMUTR (5 << 0)
+#define TAS5754M_GxSL_CLKI (6 << 0)
+#define TAS5754M_GxSL_SDOUT (7 << 0)
+#define TAS5754M_GxSL_ANMUL (8 << 0)
+#define TAS5754M_GxSL_ANMUR (9 << 0)
+#define TAS5754M_GxSL_PLLLK (10 << 0)
+#define TAS5754M_GxSL_CPCLK (11 << 0)
+#define TAS5754M_GxSL_UV0_7 (14 << 0)
+#define TAS5754M_GxSL_UV0_3 (15 << 0)
+#define TAS5754M_GxSL_PLLCK (16 << 0)
+
+/* Page 1, Register 2 - analog volume control */
+#define TAS5754M_RAGN_SHIFT 0
+#define TAS5754M_LAGN_SHIFT 4
+
+/* Page 1, Register 7 - analog boost control */
+#define TAS5754M_AGBR_SHIFT 0
+#define TAS5754M_AGBL_SHIFT 4
+
+#endif