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Diffstat (limited to 'sound/soc/codecs/wm8731.c')
-rw-r--r--sound/soc/codecs/wm8731.c271
1 files changed, 44 insertions, 227 deletions
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 86b1f6eaa599..d5ab3ba126a6 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -15,13 +15,9 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
-#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
-#include <linux/spi/spi.h>
-#include <linux/of_device.h>
-#include <linux/mutex.h>
#include <linux/clk.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -32,7 +28,6 @@
#include "wm8731.h"
-#define WM8731_NUM_SUPPLIES 4
static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = {
"AVDD",
"HPVDD",
@@ -40,21 +35,6 @@ static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = {
"DBVDD",
};
-/* codec private data */
-struct wm8731_priv {
- struct regmap *regmap;
- struct clk *mclk;
- struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES];
- const struct snd_pcm_hw_constraint_list *constraints;
- unsigned int sysclk;
- int sysclk_type;
- int playback_fs;
- bool deemph;
-
- struct mutex lock;
-};
-
-
/*
* wm8731 register cache
*/
@@ -429,12 +409,11 @@ static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai,
struct snd_soc_component *component = codec_dai->component;
u16 iface = 0;
- /* set master/slave audio interface */
- 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:
iface |= 0x0040;
break;
- case SND_SOC_DAIFMT_CBS_CFS:
+ case SND_SOC_DAIFMT_CBC_CFC:
break;
default:
return -EINVAL;
@@ -570,11 +549,38 @@ static struct snd_soc_dai_driver wm8731_dai = {
.symmetric_rate = 1,
};
-static int wm8731_request_supplies(struct device *dev,
- struct wm8731_priv *wm8731)
+static const struct snd_soc_component_driver soc_component_dev_wm8731 = {
+ .set_bias_level = wm8731_set_bias_level,
+ .controls = wm8731_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8731_snd_controls),
+ .dapm_widgets = wm8731_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
+ .dapm_routes = wm8731_intercon,
+ .num_dapm_routes = ARRAY_SIZE(wm8731_intercon),
+ .suspend_bias_off = 1,
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+};
+
+int wm8731_init(struct device *dev, struct wm8731_priv *wm8731)
{
int ret = 0, i;
+ wm8731->mclk = devm_clk_get(dev, "mclk");
+ if (IS_ERR(wm8731->mclk)) {
+ ret = PTR_ERR(wm8731->mclk);
+ if (ret == -ENOENT) {
+ wm8731->mclk = NULL;
+ dev_warn(dev, "Assuming static MCLK\n");
+ } else {
+ dev_err(dev, "Failed to get MCLK: %d\n", ret);
+ return ret;
+ }
+ }
+
+ mutex_init(&wm8731->lock);
+
for (i = 0; i < ARRAY_SIZE(wm8731->supplies); i++)
wm8731->supplies[i].supply = wm8731_supply_names[i];
@@ -592,13 +598,6 @@ static int wm8731_request_supplies(struct device *dev,
return ret;
}
- return 0;
-}
-
-static int wm8731_hw_init(struct device *dev, struct wm8731_priv *wm8731)
-{
- int ret = 0;
-
ret = wm8731_reset(wm8731->regmap);
if (ret < 0) {
dev_err(dev, "Failed to issue reset: %d\n", ret);
@@ -619,36 +618,24 @@ static int wm8731_hw_init(struct device *dev, struct wm8731_priv *wm8731)
regcache_mark_dirty(wm8731->regmap);
+ ret = devm_snd_soc_register_component(dev,
+ &soc_component_dev_wm8731, &wm8731_dai, 1);
+ if (ret != 0) {
+ dev_err(dev, "Failed to register CODEC: %d\n", ret);
+ goto err_regulator_enable;
+ }
+
+ return 0;
+
err_regulator_enable:
/* Regulators will be enabled by bias management */
regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies);
return ret;
}
+EXPORT_SYMBOL_GPL(wm8731_init);
-static const struct snd_soc_component_driver soc_component_dev_wm8731 = {
- .set_bias_level = wm8731_set_bias_level,
- .controls = wm8731_snd_controls,
- .num_controls = ARRAY_SIZE(wm8731_snd_controls),
- .dapm_widgets = wm8731_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
- .dapm_routes = wm8731_intercon,
- .num_dapm_routes = ARRAY_SIZE(wm8731_intercon),
- .suspend_bias_off = 1,
- .idle_bias_on = 1,
- .use_pmdown_time = 1,
- .endianness = 1,
- .non_legacy_dai_naming = 1,
-};
-
-static const struct of_device_id wm8731_of_match[] = {
- { .compatible = "wlf,wm8731", },
- { }
-};
-
-MODULE_DEVICE_TABLE(of, wm8731_of_match);
-
-static const struct regmap_config wm8731_regmap = {
+const struct regmap_config wm8731_regmap = {
.reg_bits = 7,
.val_bits = 9,
@@ -659,177 +646,7 @@ static const struct regmap_config wm8731_regmap = {
.reg_defaults = wm8731_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(wm8731_reg_defaults),
};
-
-#if defined(CONFIG_SPI_MASTER)
-static int wm8731_spi_probe(struct spi_device *spi)
-{
- struct wm8731_priv *wm8731;
- int ret;
-
- wm8731 = devm_kzalloc(&spi->dev, sizeof(*wm8731), GFP_KERNEL);
- if (wm8731 == NULL)
- return -ENOMEM;
-
- wm8731->mclk = devm_clk_get(&spi->dev, "mclk");
- if (IS_ERR(wm8731->mclk)) {
- ret = PTR_ERR(wm8731->mclk);
- if (ret == -ENOENT) {
- wm8731->mclk = NULL;
- dev_warn(&spi->dev, "Assuming static MCLK\n");
- } else {
- dev_err(&spi->dev, "Failed to get MCLK: %d\n",
- ret);
- return ret;
- }
- }
-
- mutex_init(&wm8731->lock);
-
- spi_set_drvdata(spi, wm8731);
-
- ret = wm8731_request_supplies(&spi->dev, wm8731);
- if (ret != 0)
- return ret;
-
- wm8731->regmap = devm_regmap_init_spi(spi, &wm8731_regmap);
- if (IS_ERR(wm8731->regmap)) {
- ret = PTR_ERR(wm8731->regmap);
- dev_err(&spi->dev, "Failed to allocate register map: %d\n",
- ret);
- return ret;
- }
-
- ret = wm8731_hw_init(&spi->dev, wm8731);
- if (ret != 0)
- return ret;
-
- ret = devm_snd_soc_register_component(&spi->dev,
- &soc_component_dev_wm8731, &wm8731_dai, 1);
- if (ret != 0) {
- dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-static struct spi_driver wm8731_spi_driver = {
- .driver = {
- .name = "wm8731",
- .of_match_table = wm8731_of_match,
- },
- .probe = wm8731_spi_probe,
-};
-#endif /* CONFIG_SPI_MASTER */
-
-#if IS_ENABLED(CONFIG_I2C)
-static int wm8731_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
-{
- struct wm8731_priv *wm8731;
- int ret;
-
- wm8731 = devm_kzalloc(&i2c->dev, sizeof(struct wm8731_priv),
- GFP_KERNEL);
- if (wm8731 == NULL)
- return -ENOMEM;
-
- wm8731->mclk = devm_clk_get(&i2c->dev, "mclk");
- if (IS_ERR(wm8731->mclk)) {
- ret = PTR_ERR(wm8731->mclk);
- if (ret == -ENOENT) {
- wm8731->mclk = NULL;
- dev_warn(&i2c->dev, "Assuming static MCLK\n");
- } else {
- dev_err(&i2c->dev, "Failed to get MCLK: %d\n",
- ret);
- return ret;
- }
- }
-
- mutex_init(&wm8731->lock);
-
- i2c_set_clientdata(i2c, wm8731);
-
- ret = wm8731_request_supplies(&i2c->dev, wm8731);
- if (ret != 0)
- return ret;
-
- wm8731->regmap = devm_regmap_init_i2c(i2c, &wm8731_regmap);
- if (IS_ERR(wm8731->regmap)) {
- ret = PTR_ERR(wm8731->regmap);
- dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
- ret);
- return ret;
- }
-
- ret = wm8731_hw_init(&i2c->dev, wm8731);
- if (ret != 0)
- return ret;
-
- ret = devm_snd_soc_register_component(&i2c->dev,
- &soc_component_dev_wm8731, &wm8731_dai, 1);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-static int wm8731_i2c_remove(struct i2c_client *client)
-{
- return 0;
-}
-
-static const struct i2c_device_id wm8731_i2c_id[] = {
- { "wm8731", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id);
-
-static struct i2c_driver wm8731_i2c_driver = {
- .driver = {
- .name = "wm8731",
- .of_match_table = wm8731_of_match,
- },
- .probe = wm8731_i2c_probe,
- .remove = wm8731_i2c_remove,
- .id_table = wm8731_i2c_id,
-};
-#endif
-
-static int __init wm8731_modinit(void)
-{
- int ret = 0;
-#if IS_ENABLED(CONFIG_I2C)
- ret = i2c_add_driver(&wm8731_i2c_driver);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n",
- ret);
- }
-#endif
-#if defined(CONFIG_SPI_MASTER)
- ret = spi_register_driver(&wm8731_spi_driver);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n",
- ret);
- }
-#endif
- return ret;
-}
-module_init(wm8731_modinit);
-
-static void __exit wm8731_exit(void)
-{
-#if IS_ENABLED(CONFIG_I2C)
- i2c_del_driver(&wm8731_i2c_driver);
-#endif
-#if defined(CONFIG_SPI_MASTER)
- spi_unregister_driver(&wm8731_spi_driver);
-#endif
-}
-module_exit(wm8731_exit);
+EXPORT_SYMBOL_GPL(wm8731_regmap);
MODULE_DESCRIPTION("ASoC WM8731 driver");
MODULE_AUTHOR("Richard Purdie");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.