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Diffstat (limited to 'sound/soc/codecs/adau1373.c')
-rw-r--r--sound/soc/codecs/adau1373.c234
1 files changed, 170 insertions, 64 deletions
diff --git a/sound/soc/codecs/adau1373.c b/sound/soc/codecs/adau1373.c
index f22ff9f6ab47..16b9b2658341 100644
--- a/sound/soc/codecs/adau1373.c
+++ b/sound/soc/codecs/adau1373.c
@@ -1,26 +1,25 @@
+// 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>
- *
- * Licensed under the GPL-2 or later.
*/
#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>
-#include <linux/gcd.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include <sound/soc.h>
-#include <sound/adau1373.h>
#include "adau1373.h"
#include "adau-utils.h"
@@ -29,12 +28,31 @@ struct adau1373_dai {
unsigned int clk_src;
unsigned int sysclk;
bool enable_src;
- bool master;
+ 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
@@ -828,7 +846,7 @@ static int adau1373_check_aif_clk(struct snd_soc_dapm_widget *source,
dai = sink->name[3] - '1';
- if (!adau1373->dais[dai].master)
+ if (!adau1373->dais[dai].clock_provider)
return 0;
if (adau1373->dais[dai].clk_src == ADAU1373_CLK_SRC_PLL1)
@@ -836,7 +854,7 @@ static int adau1373_check_aif_clk(struct snd_soc_dapm_widget *source,
else
clk = "SYSCLK2";
- return strcmp(source->name, clk) == 0;
+ return snd_soc_dapm_widget_name_cmp(source, clk) == 0;
}
static int adau1373_check_src(struct snd_soc_dapm_widget *source,
@@ -1103,14 +1121,14 @@ static int adau1373_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
struct adau1373_dai *adau1373_dai = &adau1373->dais[dai->id];
unsigned int ctrl;
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+ case SND_SOC_DAIFMT_CBP_CFP:
ctrl = ADAU1373_DAI_MASTER;
- adau1373_dai->master = true;
+ adau1373_dai->clock_provider = true;
break;
- case SND_SOC_DAIFMT_CBS_CFS:
+ case SND_SOC_DAIFMT_CBC_CFC:
ctrl = 0;
- adau1373_dai->master = false;
+ adau1373_dai->clock_provider = false;
break;
default:
return -EINVAL;
@@ -1206,7 +1224,7 @@ static struct snd_soc_dai_driver adau1373_dai_driver[] = {
.formats = ADAU1373_FORMATS,
},
.ops = &adau1373_dai_ops,
- .symmetric_rates = 1,
+ .symmetric_rate = 1,
},
{
.id = 1,
@@ -1226,7 +1244,7 @@ static struct snd_soc_dai_driver adau1373_dai_driver[] = {
.formats = ADAU1373_FORMATS,
},
.ops = &adau1373_dai_ops,
- .symmetric_rates = 1,
+ .symmetric_rate = 1,
},
{
.id = 2,
@@ -1246,7 +1264,7 @@ static struct snd_soc_dai_driver adau1373_dai_driver[] = {
.formats = ADAU1373_FORMATS,
},
.ops = &adau1373_dai_ops,
- .symmetric_rates = 1,
+ .symmetric_rate = 1,
},
};
@@ -1334,66 +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));
}
@@ -1453,7 +1466,7 @@ static const struct regmap_config adau1373_regmap_config = {
.volatile_reg = adau1373_register_volatile,
.max_register = ADAU1373_SOFT_RESET,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.reg_defaults = adau1373_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(adau1373_reg_defaults),
};
@@ -1471,13 +1484,76 @@ static const struct snd_soc_component_driver adau1373_component_driver = {
.num_dapm_routes = ARRAY_SIZE(adau1373_dapm_routes),
.use_pmdown_time = 1,
.endianness = 1,
- .non_legacy_dai_naming = 1,
};
-static int adau1373_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+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);
@@ -1489,10 +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));
@@ -1500,14 +1599,21 @@ static int adau1373_i2c_probe(struct i2c_client *client,
}
static const struct i2c_device_id adau1373_i2c_id[] = {
- { "adau1373", 0 },
+ { "adau1373" },
{ }
};
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 2025-12-25 13:14:00 +0000