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-rw-r--r--Documentation/devicetree/bindings/sound/adi,adau1373.yaml111
-rw-r--r--MAINTAINERS1
-rw-r--r--include/sound/adau1373.h33
-rw-r--r--sound/soc/codecs/Kconfig2
-rw-r--r--sound/soc/codecs/adau1373.c200
5 files changed, 268 insertions, 79 deletions
diff --git a/Documentation/devicetree/bindings/sound/adi,adau1373.yaml b/Documentation/devicetree/bindings/sound/adi,adau1373.yaml
new file mode 100644
index 000000000000..97552bf5d951
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/adi,adau1373.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/adi,adau1373.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADAU1373 CODEC
+
+maintainers:
+ - Nuno Sá <nuno.sa@analog.com>
+
+description: |
+ Analog Devices ADAU1373 Low power codec with speaker and headphone amplifiers.
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1373.pdf
+
+allOf:
+ - $ref: dai-common.yaml#
+
+properties:
+ compatible:
+ enum:
+ - adi,adau1373
+
+ reg:
+ maxItems: 1
+
+ "#sound-dai-cells":
+ const: 0
+
+ powerdown-gpios:
+ description: GPIO used for hardware power-down.
+ maxItems: 1
+
+ adi,micbias1-microvolt:
+ description:
+ This property sets the microphone bias voltage for the first microphone.
+ enum: [1800000, 2200000, 2600000, 2900000]
+ default: 2900000
+
+ adi,micbias2-microvolt:
+ description:
+ This property sets the microphone bias voltage for the second microphone.
+ enum: [1800000, 2200000, 2600000, 2900000]
+ default: 2900000
+
+ adi,input1-differential:
+ description: This property sets the first analog input as differential.
+ type: boolean
+
+ adi,input2-differential:
+ description: This property sets the second analog input as differential.
+ type: boolean
+
+ adi,input3-differential:
+ description: This property sets the third analog input as differential.
+ type: boolean
+
+ adi,input4-differential:
+ description: This property sets the fourth analog input as differential.
+ type: boolean
+
+ adi,lineout-differential:
+ description: This property sets the line output as differential.
+ type: boolean
+
+ adi,lineout-gnd-sense:
+ description: This property enables the line output ground sense control.
+ type: boolean
+
+ adi,drc-settings:
+ description:
+ This setting is used to control the dynamic range of the signal. The
+ device provides a maximum of three full band DRCs with 13 entries each.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ oneOf:
+ - minItems: 13
+ maxItems: 13
+ - minItems: 26
+ maxItems: 26
+ - minItems: 39
+ maxItems: 39
+
+required:
+ - "#sound-dai-cells"
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ audio-codec@1a {
+ compatible = "adi,adau1373";
+ reg = <0x1a>;
+ #sound-dai-cells = <0>;
+ powerdown-gpios = <&gpio 100 GPIO_ACTIVE_LOW>;
+ adi,input2-differential;
+ adi,input1-differential;
+ adi,lineout-differential;
+ adi,micbias2-microvolt = <1800000>;
+ adi,drc-settings = /bits/ 8 <
+ 0xff 0xff 0x1 0x2 0xa 0xa 0xd 0x1 0xff 0xff 0x5 0xd 0xff
+ >;
+ };
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index fc321f5ac579..877b53abba49 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1521,6 +1521,7 @@ L: linux-sound@vger.kernel.org
S: Supported
W: http://wiki.analog.com/
W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/sound/adi,*
F: sound/soc/codecs/ad1*
F: sound/soc/codecs/ad7*
F: sound/soc/codecs/adau*
diff --git a/include/sound/adau1373.h b/include/sound/adau1373.h
deleted file mode 100644
index 4c32ba1328ed..000000000000
--- a/include/sound/adau1373.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Analog Devices ADAU1373 Audio Codec drive
- *
- * Copyright 2011 Analog Devices Inc.
- * Author: Lars-Peter Clausen <lars@metafoo.de>
- */
-
-#ifndef __SOUND_ADAU1373_H__
-#define __SOUND_ADAU1373_H__
-
-enum adau1373_micbias_voltage {
- ADAU1373_MICBIAS_2_9V = 0,
- ADAU1373_MICBIAS_2_2V = 1,
- ADAU1373_MICBIAS_2_6V = 2,
- ADAU1373_MICBIAS_1_8V = 3,
-};
-
-#define ADAU1373_DRC_SIZE 13
-
-struct adau1373_platform_data {
- bool input_differential[4];
- bool lineout_differential;
- bool lineout_ground_sense;
-
- unsigned int num_drc;
- uint8_t drc_setting[3][ADAU1373_DRC_SIZE];
-
- enum adau1373_micbias_voltage micbias1;
- enum adau1373_micbias_voltage micbias2;
-};
-
-#endif
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index f5a9e596632c..d3cef4e497f3 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -465,7 +465,7 @@ config SND_SOC_ADAU1372_SPI
select REGMAP_SPI
config SND_SOC_ADAU1373
- tristate
+ tristate "Analog Devices ADAU1373 CODEC"
depends on I2C
select SND_SOC_ADAU_UTILS
diff --git a/sound/soc/codecs/adau1373.c b/sound/soc/codecs/adau1373.c
index a910e252aa12..16b9b2658341 100644
--- a/sound/soc/codecs/adau1373.c
+++ b/sound/soc/codecs/adau1373.c
@@ -8,8 +8,10 @@
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include <linux/pm.h>
+#include <linux/property.h>
#include <linux/i2c.h>
#include <linux/slab.h>
@@ -18,7 +20,6 @@
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include <sound/soc.h>
-#include <sound/adau1373.h>
#include "adau1373.h"
#include "adau-utils.h"
@@ -30,9 +31,28 @@ struct adau1373_dai {
bool clock_provider;
};
+enum adau1373_micbias_voltage {
+ ADAU1373_MICBIAS_2_9V,
+ ADAU1373_MICBIAS_2_2V,
+ ADAU1373_MICBIAS_2_6V,
+ ADAU1373_MICBIAS_1_8V,
+};
+
+#define ADAU1373_DRC_SIZE 13
+
struct adau1373 {
struct regmap *regmap;
struct adau1373_dai dais[3];
+
+ bool input_differential[4];
+ bool lineout_differential;
+ bool lineout_ground_sense;
+
+ unsigned int num_drc;
+ u8 drc_setting[3][ADAU1373_DRC_SIZE];
+
+ enum adau1373_micbias_voltage micbias1;
+ enum adau1373_micbias_voltage micbias2;
};
#define ADAU1373_INPUT_MODE 0x00
@@ -1332,66 +1352,61 @@ static void adau1373_load_drc_settings(struct adau1373 *adau1373,
regmap_write(adau1373->regmap, ADAU1373_DRC(nr) + i, drc[i]);
}
-static bool adau1373_valid_micbias(enum adau1373_micbias_voltage micbias)
+static int adau1373_get_micbias(unsigned int val,
+ enum adau1373_micbias_voltage *micbias)
{
- switch (micbias) {
- case ADAU1373_MICBIAS_2_9V:
- case ADAU1373_MICBIAS_2_2V:
- case ADAU1373_MICBIAS_2_6V:
- case ADAU1373_MICBIAS_1_8V:
- return true;
+ switch (val) {
+ case 2900000:
+ *micbias = ADAU1373_MICBIAS_2_9V;
+ return 0;
+ case 2200000:
+ *micbias = ADAU1373_MICBIAS_2_2V;
+ return 0;
+ case 2600000:
+ *micbias = ADAU1373_MICBIAS_2_6V;
+ return 0;
+ case 1800000:
+ *micbias = ADAU1373_MICBIAS_1_8V;
+ return 0;
default:
- break;
+ return -EINVAL;
}
- return false;
}
static int adau1373_probe(struct snd_soc_component *component)
{
struct adau1373 *adau1373 = snd_soc_component_get_drvdata(component);
- struct adau1373_platform_data *pdata = component->dev->platform_data;
- bool lineout_differential = false;
unsigned int val;
int i;
- if (pdata) {
- if (pdata->num_drc > ARRAY_SIZE(pdata->drc_setting))
- return -EINVAL;
-
- if (!adau1373_valid_micbias(pdata->micbias1) ||
- !adau1373_valid_micbias(pdata->micbias2))
- return -EINVAL;
-
- for (i = 0; i < pdata->num_drc; ++i) {
- adau1373_load_drc_settings(adau1373, i,
- pdata->drc_setting[i]);
- }
+ for (i = 0; i < adau1373->num_drc; ++i) {
+ adau1373_load_drc_settings(adau1373, i,
+ adau1373->drc_setting[i]);
+ }
- snd_soc_add_component_controls(component, adau1373_drc_controls,
- pdata->num_drc);
+ snd_soc_add_component_controls(component, adau1373_drc_controls,
+ adau1373->num_drc);
- val = 0;
- for (i = 0; i < 4; ++i) {
- if (pdata->input_differential[i])
- val |= BIT(i);
- }
- regmap_write(adau1373->regmap, ADAU1373_INPUT_MODE, val);
+ val = 0;
+ for (i = 0; i < ARRAY_SIZE(adau1373->input_differential); ++i) {
+ if (adau1373->input_differential[i])
+ val |= BIT(i);
+ }
+ regmap_write(adau1373->regmap, ADAU1373_INPUT_MODE, val);
- val = 0;
- if (pdata->lineout_differential)
- val |= ADAU1373_OUTPUT_CTRL_LDIFF;
- if (pdata->lineout_ground_sense)
- val |= ADAU1373_OUTPUT_CTRL_LNFBEN;
- regmap_write(adau1373->regmap, ADAU1373_OUTPUT_CTRL, val);
+ val = 0;
+ if (adau1373->lineout_differential)
+ val |= ADAU1373_OUTPUT_CTRL_LDIFF;
+ if (adau1373->lineout_ground_sense)
+ val |= ADAU1373_OUTPUT_CTRL_LNFBEN;
- lineout_differential = pdata->lineout_differential;
+ regmap_write(adau1373->regmap, ADAU1373_OUTPUT_CTRL, val);
- regmap_write(adau1373->regmap, ADAU1373_EP_CTRL,
- (pdata->micbias1 << ADAU1373_EP_CTRL_MICBIAS1_OFFSET) |
- (pdata->micbias2 << ADAU1373_EP_CTRL_MICBIAS2_OFFSET));
- }
+ regmap_write(adau1373->regmap, ADAU1373_EP_CTRL,
+ (adau1373->micbias1 << ADAU1373_EP_CTRL_MICBIAS1_OFFSET) |
+ (adau1373->micbias2 << ADAU1373_EP_CTRL_MICBIAS2_OFFSET));
- if (!lineout_differential) {
+ if (!adau1373->lineout_differential) {
snd_soc_add_component_controls(component, adau1373_lineout2_controls,
ARRAY_SIZE(adau1373_lineout2_controls));
}
@@ -1471,9 +1486,74 @@ static const struct snd_soc_component_driver adau1373_component_driver = {
.endianness = 1,
};
+static void adau1373_reset(void *reset_gpio)
+{
+ gpiod_set_value_cansleep(reset_gpio, 1);
+}
+
+static int adau1373_parse_fw(struct device *dev, struct adau1373 *adau1373)
+{
+ int ret, drc_count;
+ unsigned int val;
+
+ if (device_property_present(dev, "adi,input1-differential"))
+ adau1373->input_differential[0] = true;
+ if (device_property_present(dev, "adi,input2-differential"))
+ adau1373->input_differential[1] = true;
+ if (device_property_present(dev, "adi,input3-differential"))
+ adau1373->input_differential[2] = true;
+ if (device_property_present(dev, "adi,input4-differential"))
+ adau1373->input_differential[3] = true;
+
+ if (device_property_present(dev, "adi,lineout-differential"))
+ adau1373->lineout_differential = true;
+ if (device_property_present(dev, "adi,lineout-gnd-sense"))
+ adau1373->lineout_ground_sense = true;
+
+ ret = device_property_read_u32(dev, "adi,micbias1-microvolt", &val);
+ if (!ret) {
+ ret = adau1373_get_micbias(val, &adau1373->micbias1);
+ if (ret)
+ return dev_err_probe(dev, ret,
+ "Failed to get micbias1(%u)\n", val);
+ }
+
+ ret = device_property_read_u32(dev, "adi,micbias2-microvolt", &val);
+ if (!ret) {
+ ret = adau1373_get_micbias(val, &adau1373->micbias2);
+ if (ret)
+ return dev_err_probe(dev, ret,
+ "Failed to get micbias2(%u)\n", val);
+ }
+
+ drc_count = device_property_count_u8(dev, "adi,drc-settings");
+ if (drc_count < 0)
+ return 0;
+ if (drc_count % ADAU1373_DRC_SIZE != 0)
+ return dev_err_probe(dev, -EINVAL,
+ "DRC count(%u) not multiple of %u\n",
+ drc_count, ADAU1373_DRC_SIZE);
+
+ adau1373->num_drc = drc_count / ADAU1373_DRC_SIZE;
+ if (adau1373->num_drc > ARRAY_SIZE(adau1373->drc_setting))
+ return dev_err_probe(dev, -EINVAL,
+ "Too many DRC settings(%u)\n",
+ adau1373->num_drc);
+
+ ret = device_property_read_u8_array(dev, "adi,drc-settings",
+ (u8 *)&adau1373->drc_setting[0],
+ drc_count);
+ if (ret)
+ return dev_err_probe(dev, ret,
+ "Failed to read DRC settings\n");
+
+ return 0;
+}
+
static int adau1373_i2c_probe(struct i2c_client *client)
{
struct adau1373 *adau1373;
+ struct gpio_desc *gpiod;
int ret;
adau1373 = devm_kzalloc(&client->dev, sizeof(*adau1373), GFP_KERNEL);
@@ -1485,10 +1565,33 @@ static int adau1373_i2c_probe(struct i2c_client *client)
if (IS_ERR(adau1373->regmap))
return PTR_ERR(adau1373->regmap);
- regmap_write(adau1373->regmap, ADAU1373_SOFT_RESET, 0x00);
+ /*
+ * If the powerdown GPIO is specified, we use it for reset. Otherwise
+ * a software reset is done.
+ */
+ gpiod = devm_gpiod_get_optional(&client->dev, "powerdown",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(gpiod))
+ return PTR_ERR(gpiod);
+
+ if (gpiod) {
+ gpiod_set_value_cansleep(gpiod, 0);
+ fsleep(10);
+
+ ret = devm_add_action_or_reset(&client->dev, adau1373_reset,
+ gpiod);
+ if (ret)
+ return ret;
+ } else {
+ regmap_write(adau1373->regmap, ADAU1373_SOFT_RESET, 0x00);
+ }
dev_set_drvdata(&client->dev, adau1373);
+ ret = adau1373_parse_fw(&client->dev, adau1373);
+ if (ret)
+ return ret;
+
ret = devm_snd_soc_register_component(&client->dev,
&adau1373_component_driver,
adau1373_dai_driver, ARRAY_SIZE(adau1373_dai_driver));
@@ -1501,9 +1604,16 @@ static const struct i2c_device_id adau1373_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, adau1373_i2c_id);
+static const struct of_device_id adau1373_of_match[] = {
+ { .compatible = "adi,adau1373", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, adau1373_of_match);
+
static struct i2c_driver adau1373_i2c_driver = {
.driver = {
.name = "adau1373",
+ .of_match_table = adau1373_of_match,
},
.probe = adau1373_i2c_probe,
.id_table = adau1373_i2c_id,
generated by cgit (git 2.34.1) at 2025-07-23 16:59:51 +0000