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Message-Id: <20230618122819.23143-3-13916275206@139.com>
Date: Sun, 18 Jun 2023 20:28:18 +0800
From: Shenghao Ding <13916275206@....com>
To: broonie@...nel.org, devicetree@...r.kernel.org,
krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
lgirdwood@...il.com, perex@...ex.cz,
pierre-louis.bossart@...ux.intel.com
Cc: kevin-lu@...com, shenghao-ding@...com, alsa-devel@...a-project.org,
linux-kernel@...r.kernel.org, x1077012@...com, peeyush@...com,
navada@...com, gentuser@...il.com, Ryan_Chu@...tron.com,
Sam_Wu@...tron.com, tiwai@...e.de,
Shenghao Ding <13916275206@....com>
Subject: [PATCH v6 3/4] ASoC: tas2781: Add tas2781 driver
Create tas2781 driver.
Signed-off-by: Shenghao Ding <13916275206@....com>
---
Changes in v6:
- rename the tas2781.c to tas2781-i2c.c to distinguish subsequent
soundwire driver and spi driver
- fix the coding style on tasdev_dsp_cfg_blk_remove
- fix the coding style on tasdev_dsp_prog_blk_remove
- change enum channel to unsigned short
- remove global addr handling in the code
- remove Superfluous cast in tasdevice_fw_ready
- capitialize the bin file name, excluding the file extention name
- rename some variables in tasdev_dsp_prog_blk_remove to comply with coding style
- rename some variables in tasdev_dsp_cfg_blk_remove to comply with coding style
- unneeded ret init in tasdevice_digital_putvol
- add force firmware load Kcontrol
- correct the return value in tasdevice_set_profile_id
---
sound/soc/codecs/Kconfig | 25 +
sound/soc/codecs/Makefile | 6 +
sound/soc/codecs/tas2781-comlib.c | 534 +++++++++++++++++++++
sound/soc/codecs/tas2781-i2c.c | 763 ++++++++++++++++++++++++++++++
4 files changed, 1328 insertions(+)
create mode 100644 sound/soc/codecs/tas2781-comlib.c
create mode 100644 sound/soc/codecs/tas2781-i2c.c
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 8020097d4e4c..fe04e06cfa04 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -234,6 +234,9 @@ config SND_SOC_ALL_CODECS
imply SND_SOC_TAS2764
imply SND_SOC_TAS2770
imply SND_SOC_TAS2780
+ imply SND_SOC_TAS2781_COMLIB
+ imply SND_SOC_TAS2781_FMWLIB
+ imply SND_SOC_TAS2781_I2C
imply SND_SOC_TAS5086
imply SND_SOC_TAS571X
imply SND_SOC_TAS5720
@@ -1699,6 +1702,28 @@ config SND_SOC_TAS2780
Enable support for Texas Instruments TAS2780 high-efficiency
digital input mono Class-D audio power amplifiers.
+config SND_SOC_TAS2781_COMLIB
+ depends on I2C
+ select CRC8
+ select REGMAP_I2C
+ tristate
+
+config SND_SOC_TAS2781_FMWLIB
+ tristate
+ default n
+
+config SND_SOC_TAS2781_I2C
+ tristate "Texas Instruments TAS2781 speaker amplifier based on I2C"
+ depends on I2C
+ select SND_SOC_TAS2781_COMLIB
+ select SND_SOC_TAS2781_FMWLIB
+ help
+ Enable support for Texas Instruments TAS2781 Smart Amplifier
+ Digital input mono Class-D and DSP-inside audio power amplifiers.
+ Note the TAS2781 driver implements a flexible and configurable
+ algo coefficient setting, for one, two or even multiple TAS2781
+ chips.
+
config SND_SOC_TAS5086
tristate "Texas Instruments TAS5086 speaker amplifier"
depends on I2C
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 5cdbae88e6e3..2ea01e63d37c 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -269,6 +269,9 @@ snd-soc-tas5805m-objs := tas5805m.o
snd-soc-tas6424-objs := tas6424.o
snd-soc-tda7419-objs := tda7419.o
snd-soc-tas2770-objs := tas2770.o
+snd-soc-tas2781-comlib-objs := tas2781-comlib.o
+snd-soc-tas2781-fmwlib-objs := tas2781-fmwlib.o
+snd-soc-tas2781-i2c-objs := tas2781-i2c.o
snd-soc-tfa9879-objs := tfa9879.o
snd-soc-tfa989x-objs := tfa989x.o
snd-soc-tlv320adc3xxx-objs := tlv320adc3xxx.o
@@ -633,6 +636,9 @@ obj-$(CONFIG_SND_SOC_TAS2552) += snd-soc-tas2552.o
obj-$(CONFIG_SND_SOC_TAS2562) += snd-soc-tas2562.o
obj-$(CONFIG_SND_SOC_TAS2764) += snd-soc-tas2764.o
obj-$(CONFIG_SND_SOC_TAS2780) += snd-soc-tas2780.o
+obj-$(CONFIG_SND_SOC_TAS2781_COMLIB) += snd-soc-tas2781-comlib.o
+obj-$(CONFIG_SND_SOC_TAS2781_FMWLIB) += snd-soc-tas2781-fmwlib.o
+obj-$(CONFIG_SND_SOC_TAS2781_I2C) += snd-soc-tas2781-i2c.o
obj-$(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
diff --git a/sound/soc/codecs/tas2781-comlib.c b/sound/soc/codecs/tas2781-comlib.c
new file mode 100644
index 000000000000..a88c6c28a394
--- /dev/null
+++ b/sound/soc/codecs/tas2781-comlib.c
@@ -0,0 +1,534 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// tas2781-lib.c -- TAS2781 Common functions for HDA and ASoC Audio drivers
+//
+// Copyright 2023 Texas Instruments, Inc.
+//
+// Author: Shenghao Ding <shenghao-ding@...com>
+
+#include <linux/crc8.h>
+#include <linux/firmware.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_irq.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tas2781.h>
+
+#define TASDEVICE_CRC8_POLYNOMIAL 0x4d
+
+static const struct regmap_range_cfg tasdevice_ranges[] = {
+ {
+ .range_min = 0,
+ .range_max = 256 * 128,
+ .selector_reg = TASDEVICE_PAGE_SELECT,
+ .selector_mask = 0xff,
+ .selector_shift = 0,
+ .window_start = 0,
+ .window_len = 128,
+ },
+};
+
+static const struct regmap_config tasdevice_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .cache_type = REGCACHE_RBTREE,
+ .ranges = tasdevice_ranges,
+ .num_ranges = ARRAY_SIZE(tasdevice_ranges),
+ .max_register = 256 * 128,
+};
+
+static int tasdevice_change_chn_book(struct tasdevice_priv *tas_priv,
+ unsigned short chn, int book)
+{
+ struct i2c_client *client = (struct i2c_client *)tas_priv->client;
+ int ret = 0;
+
+ if (chn < tas_priv->ndev) {
+ struct tasdevice *tasdev = &tas_priv->tasdevice[chn];
+ struct regmap *map = tas_priv->regmap;
+
+ if (client->addr != tasdev->dev_addr) {
+ client->addr = tasdev->dev_addr;
+ if (tasdev->cur_book == book) {
+ ret = regmap_write(map,
+ TASDEVICE_PAGE_SELECT, 0);
+ if (ret < 0) {
+ dev_err(tas_priv->dev, "%s, E=%d\n",
+ __func__, ret);
+ goto out;
+ }
+ }
+ goto out;
+ }
+
+ if (tasdev->cur_book != book) {
+ ret = regmap_write(map, TASDEVICE_BOOKCTL_REG, book);
+ if (ret < 0) {
+ dev_err(tas_priv->dev, "%s, E=%d\n",
+ __func__, ret);
+ goto out;
+ }
+ tasdev->cur_book = book;
+ }
+ } else {
+ ret = -EINVAL;
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+ }
+
+out:
+ return ret;
+}
+
+int tasdevice_dev_read(struct tasdevice_priv *tas_priv,
+ unsigned short chn, unsigned int reg, unsigned int *val)
+{
+ int ret = 0;
+
+ if (chn < tas_priv->ndev) {
+ struct regmap *map = tas_priv->regmap;
+
+ ret = tasdevice_change_chn_book(tas_priv, chn,
+ TASDEVICE_BOOK_ID(reg));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_read(map, TASDEVICE_PGRG(reg), val);
+ if (ret < 0)
+ dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret);
+ } else {
+ ret = -EINVAL;
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+ }
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dev_read);
+
+int tasdevice_dev_write(struct tasdevice_priv *tas_priv,
+ unsigned short chn, unsigned int reg, unsigned int value)
+{
+ int ret = 0;
+
+ if (chn < tas_priv->ndev) {
+ struct regmap *map = tas_priv->regmap;
+
+ ret = tasdevice_change_chn_book(tas_priv, chn,
+ TASDEVICE_BOOK_ID(reg));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_write(map, TASDEVICE_PGRG(reg),
+ value);
+ if (ret < 0)
+ dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret);
+ } else {
+ ret = -EINVAL;
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+ }
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dev_write);
+
+int tasdevice_dev_bulk_write(
+ struct tasdevice_priv *tas_priv, unsigned short chn,
+ unsigned int reg, unsigned char *data,
+ unsigned int len)
+{
+ int ret = 0;
+
+ if (chn < tas_priv->ndev) {
+ struct regmap *map = tas_priv->regmap;
+
+ ret = tasdevice_change_chn_book(tas_priv, chn,
+ TASDEVICE_BOOK_ID(reg));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_bulk_write(map, TASDEVICE_PGRG(reg),
+ data, len);
+ if (ret < 0)
+ dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret);
+ } else {
+ ret = -EINVAL;
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+ }
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dev_bulk_write);
+
+int tasdevice_dev_bulk_read(struct tasdevice_priv *tas_priv,
+ unsigned short chn, unsigned int reg, unsigned char *data,
+ unsigned int len)
+{
+ int ret = 0;
+
+ if (chn < tas_priv->ndev) {
+ struct regmap *map = tas_priv->regmap;
+
+ ret = tasdevice_change_chn_book(tas_priv, chn,
+ TASDEVICE_BOOK_ID(reg));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_bulk_read(map, TASDEVICE_PGRG(reg), data, len);
+ if (ret < 0)
+ dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret);
+ } else
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dev_bulk_read);
+
+int tasdevice_dev_update_bits(
+ struct tasdevice_priv *tas_priv, unsigned short chn,
+ unsigned int reg, unsigned int mask, unsigned int value)
+{
+ int ret = 0;
+
+ if (chn < tas_priv->ndev) {
+ struct regmap *map = tas_priv->regmap;
+
+ ret = tasdevice_change_chn_book(tas_priv, chn,
+ TASDEVICE_BOOK_ID(reg));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_update_bits(map, TASDEVICE_PGRG(reg),
+ mask, value);
+ if (ret < 0)
+ dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret);
+ } else {
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+ ret = -EINVAL;
+ }
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dev_update_bits);
+
+struct tasdevice_priv *tasdevice_kzalloc(struct i2c_client *i2c)
+{
+ struct tasdevice_priv *tas_priv;
+
+ tas_priv = devm_kzalloc(&i2c->dev, sizeof(*tas_priv), GFP_KERNEL);
+ if (!tas_priv)
+ return NULL;
+ tas_priv->dev = &i2c->dev;
+ tas_priv->client = (void *)i2c;
+
+ return tas_priv;
+}
+EXPORT_SYMBOL_GPL(tasdevice_kzalloc);
+
+void tas2781_reset(struct tasdevice_priv *tas_dev)
+{
+ int ret, i;
+
+ if (tas_dev->reset) {
+ gpiod_set_value_cansleep(tas_dev->reset, 0);
+ usleep_range(500, 1000);
+ gpiod_set_value_cansleep(tas_dev->reset, 1);
+ } else {
+ for (i = 0; i < tas_dev->ndev; i++) {
+ ret = tasdevice_dev_write(tas_dev, i,
+ TAS2781_REG_SWRESET,
+ TAS2781_REG_SWRESET_RESET);
+ if (ret < 0)
+ dev_err(tas_dev->dev,
+ "dev %d swreset fail, %d\n",
+ i, ret);
+ }
+ }
+ usleep_range(1000, 1050);
+}
+EXPORT_SYMBOL_GPL(tas2781_reset);
+
+int tascodec_init(struct tasdevice_priv *tas_priv, void *codec,
+ void (*cont)(const struct firmware *fw, void *context))
+{
+ int ret = 0;
+
+ /* Codec Lock Hold to ensure that codec_probe and firmware parsing and
+ * loading do not simultaneously execute.
+ */
+ mutex_lock(&tas_priv->codec_lock);
+
+ scnprintf(tas_priv->rca_binaryname, 64, "%sRCA%d.bin",
+ tas_priv->dev_name, tas_priv->ndev);
+ crc8_populate_msb(tas_priv->crc8_lkp_tbl, TASDEVICE_CRC8_POLYNOMIAL);
+ tas_priv->codec = codec;
+ ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
+ tas_priv->rca_binaryname, tas_priv->dev, GFP_KERNEL, tas_priv,
+ cont);
+ if (ret)
+ dev_err(tas_priv->dev, "request_firmware_nowait err:0x%08x\n",
+ ret);
+
+ /* Codec Lock Release*/
+ mutex_unlock(&tas_priv->codec_lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tascodec_init);
+
+int tasdevice_init(struct tasdevice_priv *tas_priv)
+{
+ int ret = 0;
+ int i;
+
+ tas_priv->regmap = devm_regmap_init_i2c(tas_priv->client,
+ &tasdevice_regmap);
+ if (IS_ERR(tas_priv->regmap)) {
+ ret = PTR_ERR(tas_priv->regmap);
+ dev_err(tas_priv->dev, "Failed to allocate register map: %d\n",
+ ret);
+ goto out;
+ }
+
+ tas_priv->cur_prog = -1;
+ tas_priv->cur_conf = -1;
+
+ for (i = 0; i < tas_priv->ndev; i++) {
+ tas_priv->tasdevice[i].cur_book = -1;
+ tas_priv->tasdevice[i].cur_prog = -1;
+ tas_priv->tasdevice[i].cur_conf = -1;
+ }
+
+ dev_set_drvdata(tas_priv->dev, tas_priv);
+
+ mutex_init(&tas_priv->codec_lock);
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_init);
+
+static void tasdev_dsp_prog_blk_remove(struct tasdevice_prog *prog)
+{
+ struct tasdevice_data *tas_dt;
+ struct tasdev_blk *blk;
+ unsigned int i;
+
+ if (!prog)
+ return;
+
+ tas_dt = &(prog->dev_data);
+
+ if (!tas_dt->dev_blks)
+ return;
+
+ for (i = 0; i < tas_dt->nr_blk; i++) {
+ blk = &(tas_dt->dev_blks[i]);
+ kfree(blk->data);
+ }
+ kfree(tas_dt->dev_blks);
+}
+
+static void tasdev_dsp_prog_remove(struct tasdevice_prog *prog,
+ unsigned short nr)
+{
+ int i;
+
+ for (i = 0; i < nr; i++)
+ tasdev_dsp_prog_blk_remove(&prog[i]);
+ kfree(prog);
+}
+
+static void tasdev_dsp_cfg_blk_remove(struct tasdevice_config *cfg)
+{
+ struct tasdevice_data *tas_dt;
+ struct tasdev_blk *blk;
+ unsigned int i;
+
+ if (cfg) {
+ tas_dt = &(cfg->dev_data);
+
+ if (!tas_dt->dev_blks)
+ return;
+
+ for (i = 0; i < tas_dt->nr_blk; i++) {
+ blk = &(tas_dt->dev_blks[i]);
+ kfree(blk->data);
+ }
+ kfree(tas_dt->dev_blks);
+ }
+}
+
+static void tasdev_dsp_cfg_remove(struct tasdevice_config *config,
+ unsigned short nr)
+{
+ int i;
+
+ for (i = 0; i < nr; i++)
+ tasdev_dsp_cfg_blk_remove(&config[i]);
+ kfree(config);
+}
+
+void tasdevice_dsp_remove(void *context)
+{
+ struct tasdevice_priv *tas_dev = (struct tasdevice_priv *) context;
+ struct tasdevice_fw *tas_fmw = tas_dev->fmw;
+
+ if (!tas_dev->fmw)
+ return;
+
+ if (tas_fmw->programs)
+ tasdev_dsp_prog_remove(tas_fmw->programs,
+ tas_fmw->nr_programs);
+ if (tas_fmw->configs)
+ tasdev_dsp_cfg_remove(tas_fmw->configs,
+ tas_fmw->nr_configurations);
+ kfree(tas_fmw);
+ tas_dev->fmw = NULL;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dsp_remove);
+
+void tasdevice_remove(struct tasdevice_priv *tas_priv)
+{
+ if (gpio_is_valid(tas_priv->irq_info.irq_gpio))
+ gpio_free(tas_priv->irq_info.irq_gpio);
+ kfree(tas_priv->acpi_subsystem_id);
+ mutex_destroy(&tas_priv->codec_lock);
+}
+EXPORT_SYMBOL_GPL(tasdevice_remove);
+
+static int tasdevice_clamp(int val, int max, unsigned int invert)
+{
+ if (val > max)
+ val = max;
+ if (invert)
+ val = max - val;
+ if (val < 0)
+ val = 0;
+ return val;
+}
+
+int tasdevice_amp_putvol(struct tasdevice_priv *tas_priv,
+ struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc)
+{
+ unsigned int invert = mc->invert;
+ unsigned char mask;
+ int max = mc->max;
+ int err_cnt = 0;
+ int val, i, ret;
+
+ mask = (1 << fls(max)) - 1;
+ mask <<= mc->shift;
+ val = tasdevice_clamp(ucontrol->value.integer.value[0], max, invert);
+ for (i = 0; i < tas_priv->ndev; i++) {
+ ret = tasdevice_dev_update_bits(tas_priv, i,
+ mc->reg, mask, (unsigned int)(val << mc->shift));
+ if (!ret)
+ continue;
+ err_cnt++;
+ dev_err(tas_priv->dev, "set AMP vol error in dev %d\n", i);
+ }
+
+ /* All the devices set error, return 0 */
+ return (err_cnt == tas_priv->ndev) ? 0 : 1;
+}
+EXPORT_SYMBOL_GPL(tasdevice_amp_putvol);
+
+int tasdevice_amp_getvol(struct tasdevice_priv *tas_priv,
+ struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc)
+{
+ unsigned int invert = mc->invert;
+ unsigned char mask = 0;
+ int max = mc->max;
+ int ret = 0;
+ int val;
+
+ /* Read the primary device */
+ ret = tasdevice_dev_read(tas_priv, 0, mc->reg, &val);
+ if (ret) {
+ dev_err(tas_priv->dev, "%s, get AMP vol error\n", __func__);
+ goto out;
+ }
+
+ mask = (1 << fls(max)) - 1;
+ mask <<= mc->shift;
+ val = (val & mask) >> mc->shift;
+ val = tasdevice_clamp(val, max, invert);
+ ucontrol->value.integer.value[0] = val;
+
+out:
+ return ret;
+
+}
+EXPORT_SYMBOL_GPL(tasdevice_amp_getvol);
+
+int tasdevice_digital_putvol(struct tasdevice_priv *tas_priv,
+ struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc)
+{
+ unsigned int invert = mc->invert;
+ int max = mc->max;
+ int err_cnt = 0;
+ int ret;
+ int val, i;
+
+ val = tasdevice_clamp(ucontrol->value.integer.value[0], max, invert);
+
+ for (i = 0; i < tas_priv->ndev; i++) {
+ ret = tasdevice_dev_write(tas_priv, i, mc->reg,
+ (unsigned int)val);
+ if (!ret)
+ continue;
+ err_cnt++;
+ dev_err(tas_priv->dev,
+ "set digital vol err in dev %d\n", i);
+ }
+
+ /* All the devices set error, return 0 */
+ return (err_cnt == tas_priv->ndev) ? 0 : 1;
+
+}
+EXPORT_SYMBOL_GPL(tasdevice_digital_putvol);
+
+int tasdevice_digital_getvol(struct tasdevice_priv *tas_priv,
+ struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc)
+{
+ unsigned int invert = mc->invert;
+ int max = mc->max;
+ int ret, val;
+
+ /* Read the primary device as the whole */
+ ret = tasdevice_dev_read(tas_priv, 0, mc->reg, &val);
+ if (ret) {
+ dev_err(tas_priv->dev, "%s, get digital vol error\n",
+ __func__);
+ goto out;
+ }
+
+ val = tasdevice_clamp(val, max, invert);
+ ucontrol->value.integer.value[0] = val;
+
+out:
+ return ret;
+
+}
+EXPORT_SYMBOL_GPL(tasdevice_digital_getvol);
+
+MODULE_DESCRIPTION("TAS2781 common library");
+MODULE_AUTHOR("Shenghao Ding, TI, <shenghao-ding@...com>");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/tas2781-i2c.c b/sound/soc/codecs/tas2781-i2c.c
new file mode 100644
index 000000000000..4c59429a42b7
--- /dev/null
+++ b/sound/soc/codecs/tas2781-i2c.c
@@ -0,0 +1,763 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ALSA SoC Texas Instruments TAS2781 Audio Smart Amplifier
+//
+// Copyright (C) 2022 - 2023 Texas Instruments Incorporated
+// https://www.ti.com
+//
+// The TAS2781 driver implements a flexible and configurable
+// algo coefficient setting for one, two, or even multiple
+// TAS2781 chips.
+//
+// Author: Shenghao Ding <shenghao-ding@...com>
+// Author: Kevin Lu <kevin-lu@...com>
+//
+
+#include <linux/crc8.h>
+#include <linux/firmware.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_irq.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tas2781.h>
+#include <sound/tlv.h>
+#include <sound/tas2781-tlv.h>
+
+static const struct i2c_device_id tasdevice_id[] = {
+ { "tas2781", TAS2781 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, tasdevice_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id tasdevice_of_match[] = {
+ { .compatible = "ti,tas2781" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, tasdevice_of_match);
+#endif
+
+/**
+ * tas2781_digital_getvol - get the volum control
+ * @kcontrol: control pointer
+ * @ucontrol: User data
+ * Customer Kcontrol for tas2781 is primarily for regmap booking, paging
+ * depends on internal regmap mechanism.
+ * tas2781 contains book and page two-level register map, especially
+ * book switching will set the register BXXP00R7F, after switching to the
+ * correct book, then leverage the mechanism for paging to access the
+ * register.
+ */
+static int tas2781_digital_getvol(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+
+ return tasdevice_digital_getvol(tas_priv, ucontrol, mc);
+}
+
+static int tas2781_digital_putvol(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+
+ return tasdevice_digital_putvol(tas_priv, ucontrol, mc);
+}
+
+static int tas2781_amp_getvol(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+
+ return tasdevice_amp_getvol(tas_priv, ucontrol, mc);
+}
+
+static int tas2781_amp_putvol(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv =
+ snd_soc_component_get_drvdata(codec);
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+
+ return tasdevice_amp_putvol(tas_priv, ucontrol, mc);
+}
+
+static int tas2781_force_fwload_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv =
+ snd_soc_component_get_drvdata(component);
+
+ ucontrol->value.integer.value[0] = (int)tas_priv->force_fwload_status;
+ dev_dbg(tas_priv->dev, "%s : Force FWload %s\n", __func__,
+ tas_priv->force_fwload_status ? "ON" : "OFF");
+
+ return 0;
+}
+
+static int tas2781_force_fwload_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv =
+ snd_soc_component_get_drvdata(component);
+ bool change, val = (bool)ucontrol->value.integer.value[0];
+
+ if (tas_priv->force_fwload_status == val)
+ change = false;
+ else {
+ change = true;
+ tas_priv->force_fwload_status = val;
+ }
+ dev_dbg(tas_priv->dev, "%s : Force FWload %s\n", __func__,
+ tas_priv->force_fwload_status ? "ON" : "OFF");
+
+ return change;
+}
+
+static const struct snd_kcontrol_new tas2781_snd_controls[] = {
+ SOC_SINGLE_RANGE_EXT_TLV("Speaker Analog Gain", TAS2781_AMP_LEVEL,
+ 1, 0, 20, 0, tas2781_amp_getvol,
+ tas2781_amp_putvol, amp_vol_tlv),
+ SOC_SINGLE_RANGE_EXT_TLV("Speaker Digital Gain", TAS2781_DVC_LVL,
+ 0, 0, 200, 1, tas2781_digital_getvol,
+ tas2781_digital_putvol, dvc_tlv),
+ SOC_SINGLE_BOOL_EXT("Speaker Force Firmware Load", 0,
+ tas2781_force_fwload_get, tas2781_force_fwload_put),
+};
+
+static int tasdevice_set_profile_id(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+ int ret = 0;
+
+ if (tas_priv->rcabin.profile_cfg_id !=
+ ucontrol->value.integer.value[0]) {
+ tas_priv->rcabin.profile_cfg_id =
+ ucontrol->value.integer.value[0];
+ ret = 1;
+ }
+
+ return ret;
+}
+
+static int tasdevice_info_programs(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+ struct tasdevice_fw *tas_fw = tas_priv->fmw;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = (int)tas_fw->nr_programs;
+
+ return 0;
+}
+
+static int tasdevice_info_configurations(
+ struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+ struct snd_soc_component *codec =
+ snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+ struct tasdevice_fw *tas_fw = tas_priv->fmw;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = (int)tas_fw->nr_configurations - 1;
+
+ return 0;
+}
+
+static int tasdevice_info_profile(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = tas_priv->rcabin.ncfgs - 1;
+
+ return 0;
+}
+
+static int tasdevice_get_profile_id(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+
+ ucontrol->value.integer.value[0] = tas_priv->rcabin.profile_cfg_id;
+
+ return 0;
+}
+
+static int tasdevice_create_control(struct tasdevice_priv *tas_priv)
+{
+ struct snd_kcontrol_new *prof_ctrls;
+ int nr_controls = 1;
+ int mix_index = 0;
+ int ret;
+ char *name;
+
+ prof_ctrls = devm_kcalloc(tas_priv->dev, nr_controls,
+ sizeof(prof_ctrls[0]), GFP_KERNEL);
+ if (!prof_ctrls) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* Create a mixer item for selecting the active profile */
+ name = devm_kzalloc(tas_priv->dev, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
+ GFP_KERNEL);
+ if (!name) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "Speaker Profile Id");
+ prof_ctrls[mix_index].name = name;
+ prof_ctrls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+ prof_ctrls[mix_index].info = tasdevice_info_profile;
+ prof_ctrls[mix_index].get = tasdevice_get_profile_id;
+ prof_ctrls[mix_index].put = tasdevice_set_profile_id;
+ mix_index++;
+
+ ret = snd_soc_add_component_controls(tas_priv->codec,
+ prof_ctrls, nr_controls < mix_index ? nr_controls : mix_index);
+
+out:
+ return ret;
+}
+
+static int tasdevice_program_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+
+ ucontrol->value.integer.value[0] = tas_priv->cur_prog;
+
+ return 0;
+}
+
+static int tasdevice_program_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+ unsigned int nr_program = ucontrol->value.integer.value[0];
+ int ret = 0;
+
+ if (tas_priv->cur_prog != nr_program) {
+ tas_priv->cur_prog = nr_program;
+ ret = 1;
+ }
+
+ return ret;
+}
+
+static int tasdevice_configuration_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+
+ ucontrol->value.integer.value[0] = tas_priv->cur_conf;
+
+ return 0;
+}
+
+static int tasdevice_configuration_put(
+ struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+ unsigned int nr_configuration = ucontrol->value.integer.value[0];
+ int ret = 0;
+
+ if (tas_priv->cur_conf != nr_configuration) {
+ tas_priv->cur_conf = nr_configuration;
+ ret = 1;
+ }
+
+ return ret;
+}
+
+static int tasdevice_dsp_create_ctrls(
+ struct tasdevice_priv *tas_priv)
+{
+ struct snd_kcontrol_new *dsp_ctrls;
+ char *prog_name, *conf_name;
+ int nr_controls = 2;
+ int mix_index = 0;
+ int ret;
+
+ /* Alloc kcontrol via devm_kzalloc, which don't manually
+ * free the kcontrol
+ */
+ dsp_ctrls = devm_kcalloc(tas_priv->dev, nr_controls,
+ sizeof(dsp_ctrls[0]), GFP_KERNEL);
+ if (!dsp_ctrls) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* Create a mixer item for selecting the active profile */
+ prog_name = devm_kzalloc(tas_priv->dev,
+ SNDRV_CTL_ELEM_ID_NAME_MAXLEN, GFP_KERNEL);
+ conf_name = devm_kzalloc(tas_priv->dev, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
+ GFP_KERNEL);
+ if (!prog_name || !conf_name) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ scnprintf(prog_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
+ "Speaker Program Id");
+ dsp_ctrls[mix_index].name = prog_name;
+ dsp_ctrls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+ dsp_ctrls[mix_index].info = tasdevice_info_programs;
+ dsp_ctrls[mix_index].get = tasdevice_program_get;
+ dsp_ctrls[mix_index].put = tasdevice_program_put;
+ mix_index++;
+
+ scnprintf(conf_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
+ "Speaker Config Id");
+ dsp_ctrls[mix_index].name = conf_name;
+ dsp_ctrls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+ dsp_ctrls[mix_index].info = tasdevice_info_configurations;
+ dsp_ctrls[mix_index].get = tasdevice_configuration_get;
+ dsp_ctrls[mix_index].put = tasdevice_configuration_put;
+ mix_index++;
+
+ ret = snd_soc_add_component_controls(tas_priv->codec, dsp_ctrls,
+ nr_controls < mix_index ? nr_controls : mix_index);
+
+out:
+ return ret;
+}
+
+static void tasdevice_fw_ready(const struct firmware *fmw,
+ void *context)
+{
+ struct tasdevice_priv *tas_priv = context;
+ int ret = 0;
+ int i;
+
+ mutex_lock(&tas_priv->codec_lock);
+
+ ret = tasdevice_rca_parser(tas_priv, fmw);
+ if (ret)
+ goto out;
+ tasdevice_create_control(tas_priv);
+
+ tasdevice_dsp_remove(tas_priv);
+ tasdevice_calbin_remove(tas_priv);
+ tas_priv->fw_state = TASDEVICE_DSP_FW_PENDING;
+ scnprintf(tas_priv->coef_binaryname, 64, "%s_coef.bin",
+ tas_priv->dev_name);
+ ret = tasdevice_dsp_parser(tas_priv);
+ if (ret) {
+ dev_err(tas_priv->dev, "dspfw load %s error\n",
+ tas_priv->coef_binaryname);
+ tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
+ goto out;
+ }
+ tasdevice_dsp_create_ctrls(tas_priv);
+
+ tas_priv->fw_state = TASDEVICE_DSP_FW_ALL_OK;
+
+ /* If calibrated data occurs error, dsp will still works with default
+ * calibrated data inside algo.
+ */
+ for (i = 0; i < tas_priv->ndev; i++) {
+ scnprintf(tas_priv->cal_binaryname[i], 64, "%s_cal_0x%02x.bin",
+ tas_priv->dev_name, tas_priv->tasdevice[i].dev_addr);
+ ret = tas2781_load_calibration(tas_priv,
+ tas_priv->cal_binaryname[i], i);
+ if (ret != 0)
+ dev_err(tas_priv->dev,
+ "%s: load %s error, default will effect\n",
+ __func__, tas_priv->cal_binaryname[i]);
+ }
+
+ tasdevice_prmg_calibdata_load(tas_priv, 0);
+ tas_priv->cur_prog = 0;
+out:
+ if (tas_priv->fw_state == TASDEVICE_DSP_FW_FAIL) {
+ /*If DSP FW fail, kcontrol won't be created */
+ tasdevice_config_info_remove(tas_priv);
+ tasdevice_dsp_remove(tas_priv);
+ }
+ mutex_unlock(&tas_priv->codec_lock);
+ if (fmw)
+ release_firmware(fmw);
+}
+
+static int tasdevice_dapm_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm);
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+ int state = 0;
+
+ /* Codec Lock Hold */
+ mutex_lock(&tas_priv->codec_lock);
+ if (event == SND_SOC_DAPM_PRE_PMD)
+ state = 1;
+ tasdevice_tuning_switch(tas_priv, state);
+ /* Codec Lock Release*/
+ mutex_unlock(&tas_priv->codec_lock);
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget tasdevice_dapm_widgets[] = {
+ SND_SOC_DAPM_AIF_IN("ASI", "ASI Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_OUT_E("ASI OUT", "ASI Capture", 0, SND_SOC_NOPM,
+ 0, 0, tasdevice_dapm_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_SPK("SPK", tasdevice_dapm_event),
+ SND_SOC_DAPM_OUTPUT("OUT"),
+ SND_SOC_DAPM_INPUT("DMIC")
+};
+
+static const struct snd_soc_dapm_route tasdevice_audio_map[] = {
+ {"SPK", NULL, "ASI"},
+ {"OUT", NULL, "SPK"},
+ {"ASI OUT", NULL, "DMIC"}
+};
+
+static int tasdevice_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *codec = dai->component;
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+ int ret = 0;
+
+ if (tas_priv->fw_state != TASDEVICE_DSP_FW_ALL_OK) {
+ dev_err(tas_priv->dev, "DSP bin file not loaded\n");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int tasdevice_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+ struct tasdevice_priv *tas_priv = snd_soc_dai_get_drvdata(dai);
+ unsigned int slot_width;
+ unsigned int fsrate;
+ int bclk_rate;
+ int rc = 0;
+
+ fsrate = params_rate(params);
+ switch (fsrate) {
+ case 48000:
+ case 44100:
+ break;
+ default:
+ dev_err(tas_priv->dev, "%s: incorrect sample rate = %u\n",
+ __func__, fsrate);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ slot_width = params_width(params);
+ switch (slot_width) {
+ case 16:
+ case 20:
+ case 24:
+ case 32:
+ break;
+ default:
+ dev_err(tas_priv->dev, "%s: incorrect slot width = %u\n",
+ __func__, slot_width);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ bclk_rate = snd_soc_params_to_bclk(params);
+ if (bclk_rate < 0) {
+ dev_err(tas_priv->dev, "%s: incorrect bclk rate = %d\n",
+ __func__, bclk_rate);
+ rc = bclk_rate;
+ goto out;
+ }
+
+out:
+ return rc;
+}
+
+static int tasdevice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct tasdevice_priv *tas_priv = snd_soc_dai_get_drvdata(codec_dai);
+
+ tas_priv->sysclk = freq;
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops tasdevice_dai_ops = {
+ .startup = tasdevice_startup,
+ .hw_params = tasdevice_hw_params,
+ .set_sysclk = tasdevice_set_dai_sysclk,
+};
+
+static struct snd_soc_dai_driver tasdevice_dai_driver[] = {
+ {
+ .name = "tas2781_codec",
+ .id = 0,
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 4,
+ .rates = TASDEVICE_RATES,
+ .formats = TASDEVICE_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 4,
+ .rates = TASDEVICE_RATES,
+ .formats = TASDEVICE_FORMATS,
+ },
+ .ops = &tasdevice_dai_ops,
+ .symmetric_rate = 1,
+ },
+};
+
+static int tasdevice_codec_probe(struct snd_soc_component *codec)
+{
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+
+ return tascodec_init(tas_priv, codec, tasdevice_fw_ready);
+}
+
+static void tasdevice_deinit(void *context)
+{
+ struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
+
+ tasdevice_config_info_remove(tas_priv);
+ tasdevice_dsp_remove(tas_priv);
+ tasdevice_calbin_remove(tas_priv);
+ tas_priv->fw_state = TASDEVICE_DSP_FW_PENDING;
+}
+
+static void tasdevice_codec_remove(
+ struct snd_soc_component *codec)
+{
+ struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
+
+ tasdevice_deinit(tas_priv);
+}
+
+static const struct snd_soc_component_driver
+ soc_codec_driver_tasdevice = {
+ .probe = tasdevice_codec_probe,
+ .remove = tasdevice_codec_remove,
+ .controls = tas2781_snd_controls,
+ .num_controls = ARRAY_SIZE(tas2781_snd_controls),
+ .dapm_widgets = tasdevice_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tasdevice_dapm_widgets),
+ .dapm_routes = tasdevice_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(tasdevice_audio_map),
+ .idle_bias_on = 1,
+ .endianness = 1,
+};
+
+static void tasdevice_parse_dt(struct tasdevice_priv *tas_priv)
+{
+ struct i2c_client *client = (struct i2c_client *)tas_priv->client;
+ unsigned int dev_addrs[TASDEVICE_MAX_CHANNELS];
+ int rc, i, ndev = 0;
+
+ if (tas_priv->isacpi) {
+ ndev = device_property_read_u32_array(&client->dev,
+ "ti,audio-slots", NULL, 0);
+ if (ndev <= 0) {
+ ndev = 1;
+ dev_addrs[0] = client->addr;
+ } else {
+ ndev = (ndev < ARRAY_SIZE(dev_addrs))
+ ? ndev : ARRAY_SIZE(dev_addrs);
+ ndev = device_property_read_u32_array(&client->dev,
+ "ti,audio-slots", dev_addrs, ndev);
+ }
+
+ tas_priv->irq_info.irq_gpio =
+ acpi_dev_gpio_irq_get(ACPI_COMPANION(&client->dev), 0);
+ } else {
+ struct device_node *np = tas_priv->dev->of_node;
+#ifdef CONFIG_OF
+ const __be32 *reg, *reg_end;
+ int len, sw, aw;
+
+ aw = of_n_addr_cells(np);
+ sw = of_n_size_cells(np);
+ if (sw == 0) {
+ reg = (const __be32 *)of_get_property(np,
+ "reg", &len);
+ reg_end = reg + len/sizeof(*reg);
+ ndev = 0;
+ do {
+ dev_addrs[ndev] = of_read_number(reg, aw);
+ reg += aw;
+ ndev++;
+ } while (reg < reg_end);
+ } else {
+ ndev = 1;
+ dev_addrs[0] = client->addr;
+ }
+#else
+ ndev = 1;
+ dev_addrs[0] = client->addr;
+#endif
+ tas_priv->irq_info.irq_gpio = of_irq_get(np, 0);
+ }
+ tas_priv->ndev = ndev;
+ for (i = 0; i < ndev; i++)
+ tas_priv->tasdevice[i].dev_addr = dev_addrs[i];
+
+ tas_priv->reset = devm_gpiod_get_optional(&client->dev,
+ "reset-gpios", GPIOD_OUT_HIGH);
+ if (IS_ERR(tas_priv->reset))
+ dev_err(tas_priv->dev, "%s Can't get reset GPIO\n",
+ __func__);
+
+ strcpy(tas_priv->dev_name, tasdevice_id[tas_priv->chip_id].name);
+
+ if (gpio_is_valid(tas_priv->irq_info.irq_gpio)) {
+ rc = gpio_request(tas_priv->irq_info.irq_gpio,
+ "AUDEV-IRQ");
+ if (!rc) {
+ gpio_direction_input(
+ tas_priv->irq_info.irq_gpio);
+
+ tas_priv->irq_info.irq =
+ gpio_to_irq(tas_priv->irq_info.irq_gpio);
+ } else
+ dev_err(tas_priv->dev, "%s: GPIO %d request error\n",
+ __func__, tas_priv->irq_info.irq_gpio);
+ } else
+ dev_err(tas_priv->dev,
+ "Looking up irq-gpio property failed %d\n",
+ tas_priv->irq_info.irq_gpio);
+}
+
+static int tasdevice_i2c_probe(struct i2c_client *i2c)
+{
+ const struct i2c_device_id *id = i2c_match_id(tasdevice_id, i2c);
+ const struct acpi_device_id *acpi_id;
+ struct tasdevice_priv *tas_priv;
+ int ret;
+
+ tas_priv = tasdevice_kzalloc(i2c);
+ if (!tas_priv)
+ return -ENOMEM;
+
+ if (ACPI_HANDLE(&i2c->dev)) {
+ acpi_id = acpi_match_device(i2c->dev.driver->acpi_match_table,
+ &i2c->dev);
+ if (!acpi_id) {
+ dev_err(&i2c->dev, "No driver data\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ tas_priv->chip_id = acpi_id->driver_data;
+ tas_priv->isacpi = true;
+ } else {
+ tas_priv->chip_id = id ? id->driver_data : 0;
+ tas_priv->isacpi = false;
+ }
+
+ tasdevice_parse_dt(tas_priv);
+
+ ret = tasdevice_init(tas_priv);
+ if (ret)
+ goto err;
+
+ ret = devm_snd_soc_register_component(tas_priv->dev,
+ &soc_codec_driver_tasdevice,
+ tasdevice_dai_driver, ARRAY_SIZE(tasdevice_dai_driver));
+ if (ret) {
+ dev_err(tas_priv->dev, "%s: codec register error:0x%08x\n",
+ __func__, ret);
+ goto err;
+ }
+err:
+ if (ret < 0)
+ tasdevice_remove(tas_priv);
+ return ret;
+}
+
+static void tasdevice_i2c_remove(struct i2c_client *client)
+{
+ struct tasdevice_priv *tas_priv = i2c_get_clientdata(client);
+
+ tasdevice_remove(tas_priv);
+}
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id tasdevice_acpi_match[] = {
+ { "TAS2781", TAS2781 },
+ {},
+};
+
+MODULE_DEVICE_TABLE(acpi, tasdevice_acpi_match);
+#endif
+
+static struct i2c_driver tasdevice_i2c_driver = {
+ .driver = {
+ .name = "tas2781-codec",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(tasdevice_of_match),
+#ifdef CONFIG_ACPI
+ .acpi_match_table = ACPI_PTR(tasdevice_acpi_match),
+#endif
+ },
+ .probe = tasdevice_i2c_probe,
+ .remove = tasdevice_i2c_remove,
+ .id_table = tasdevice_id,
+};
+
+module_i2c_driver(tasdevice_i2c_driver);
+
+MODULE_AUTHOR("Shenghao Ding <shenghao-ding@...com>");
+MODULE_AUTHOR("Kevin Lu <kevin-lu@...com>");
+MODULE_DESCRIPTION("ASoC TAS2781 Driver");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(SND_SOC_TAS2781_FMWLIB);
--
2.34.1
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