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Diffstat (limited to 'sound/soc/codecs/adau1701.c')
-rw-r--r--sound/soc/codecs/adau1701.c126
1 files changed, 110 insertions, 16 deletions
diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c
index d4e219b6b98f..ff7f846e3b76 100644
--- a/sound/soc/codecs/adau1701.c
+++ b/sound/soc/codecs/adau1701.c
@@ -16,6 +16,7 @@
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -101,6 +102,10 @@
#define ADAU1701_FIRMWARE "adau1701.bin"
+static const char * const supply_names[] = {
+ "dvdd", "avdd"
+};
+
struct adau1701 {
int gpio_nreset;
int gpio_pll_mode[2];
@@ -112,6 +117,7 @@ struct adau1701 {
u8 pin_config[12];
struct sigmadsp *sigmadsp;
+ struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
};
static const struct snd_kcontrol_new adau1701_controls[] = {
@@ -565,7 +571,6 @@ static int adau1701_set_bias_level(struct snd_soc_codec *codec,
break;
}
- codec->dapm.bias_level = level;
return 0;
}
@@ -669,6 +674,13 @@ static int adau1701_probe(struct snd_soc_codec *codec)
if (ret)
return ret;
+ ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
+ adau1701->supplies);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to enable regulators: %d\n", ret);
+ return ret;
+ }
+
/*
* Let the pll_clkdiv variable default to something that won't happen
* at runtime. That way, we can postpone the firmware download from
@@ -680,7 +692,7 @@ static int adau1701_probe(struct snd_soc_codec *codec)
/* initalize with pre-configured pll mode settings */
ret = adau1701_reset(codec, adau1701->pll_clkdiv, 0);
if (ret < 0)
- return ret;
+ goto exit_regulators_disable;
/* set up pin config */
val = 0;
@@ -696,10 +708,60 @@ static int adau1701_probe(struct snd_soc_codec *codec)
regmap_write(adau1701->regmap, ADAU1701_PINCONF_1, val);
return 0;
+
+exit_regulators_disable:
+
+ regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
+ return ret;
}
+static int adau1701_remove(struct snd_soc_codec *codec)
+{
+ struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
+
+ if (gpio_is_valid(adau1701->gpio_nreset))
+ gpio_set_value_cansleep(adau1701->gpio_nreset, 0);
+
+ regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int adau1701_suspend(struct snd_soc_codec *codec)
+{
+ struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
+
+ regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies),
+ adau1701->supplies);
+
+ return 0;
+}
+
+static int adau1701_resume(struct snd_soc_codec *codec)
+{
+ struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
+ adau1701->supplies);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to enable regulators: %d\n", ret);
+ return ret;
+ }
+
+ return adau1701_reset(codec, adau1701->pll_clkdiv, 0);
+}
+#else
+#define adau1701_resume NULL
+#define adau1701_suspend NULL
+#endif /* CONFIG_PM */
+
static struct snd_soc_codec_driver adau1701_codec_drv = {
.probe = adau1701_probe,
+ .remove = adau1701_remove,
+ .resume = adau1701_resume,
+ .suspend = adau1701_suspend,
.set_bias_level = adau1701_set_bias_level,
.idle_bias_off = true,
@@ -730,32 +792,58 @@ static int adau1701_i2c_probe(struct i2c_client *client,
struct device *dev = &client->dev;
int gpio_nreset = -EINVAL;
int gpio_pll_mode[2] = { -EINVAL, -EINVAL };
- int ret;
+ int ret, i;
adau1701 = devm_kzalloc(dev, sizeof(*adau1701), GFP_KERNEL);
if (!adau1701)
return -ENOMEM;
+ for (i = 0; i < ARRAY_SIZE(supply_names); i++)
+ adau1701->supplies[i].supply = supply_names[i];
+
+ ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(adau1701->supplies),
+ adau1701->supplies);
+ if (ret < 0) {
+ dev_err(dev, "Failed to get regulators: %d\n", ret);
+ return ret;
+ }
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
+ adau1701->supplies);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable regulators: %d\n", ret);
+ return ret;
+ }
+
adau1701->client = client;
adau1701->regmap = devm_regmap_init(dev, NULL, client,
&adau1701_regmap);
- if (IS_ERR(adau1701->regmap))
- return PTR_ERR(adau1701->regmap);
+ if (IS_ERR(adau1701->regmap)) {
+ ret = PTR_ERR(adau1701->regmap);
+ goto exit_regulators_disable;
+ }
+
if (dev->of_node) {
gpio_nreset = of_get_named_gpio(dev->of_node, "reset-gpio", 0);
- if (gpio_nreset < 0 && gpio_nreset != -ENOENT)
- return gpio_nreset;
+ if (gpio_nreset < 0 && gpio_nreset != -ENOENT) {
+ ret = gpio_nreset;
+ goto exit_regulators_disable;
+ }
gpio_pll_mode[0] = of_get_named_gpio(dev->of_node,
"adi,pll-mode-gpios", 0);
- if (gpio_pll_mode[0] < 0 && gpio_pll_mode[0] != -ENOENT)
- return gpio_pll_mode[0];
+ if (gpio_pll_mode[0] < 0 && gpio_pll_mode[0] != -ENOENT) {
+ ret = gpio_pll_mode[0];
+ goto exit_regulators_disable;
+ }
gpio_pll_mode[1] = of_get_named_gpio(dev->of_node,
"adi,pll-mode-gpios", 1);
- if (gpio_pll_mode[1] < 0 && gpio_pll_mode[1] != -ENOENT)
- return gpio_pll_mode[1];
+ if (gpio_pll_mode[1] < 0 && gpio_pll_mode[1] != -ENOENT) {
+ ret = gpio_pll_mode[1];
+ goto exit_regulators_disable;
+ }
of_property_read_u32(dev->of_node, "adi,pll-clkdiv",
&adau1701->pll_clkdiv);
@@ -769,7 +857,7 @@ static int adau1701_i2c_probe(struct i2c_client *client,
ret = devm_gpio_request_one(dev, gpio_nreset, GPIOF_OUT_INIT_LOW,
"ADAU1701 Reset");
if (ret < 0)
- return ret;
+ goto exit_regulators_disable;
}
if (gpio_is_valid(gpio_pll_mode[0]) &&
@@ -778,13 +866,13 @@ static int adau1701_i2c_probe(struct i2c_client *client,
GPIOF_OUT_INIT_LOW,
"ADAU1701 PLL mode 0");
if (ret < 0)
- return ret;
+ goto exit_regulators_disable;
ret = devm_gpio_request_one(dev, gpio_pll_mode[1],
GPIOF_OUT_INIT_LOW,
"ADAU1701 PLL mode 1");
if (ret < 0)
- return ret;
+ goto exit_regulators_disable;
}
adau1701->gpio_nreset = gpio_nreset;
@@ -795,11 +883,17 @@ static int adau1701_i2c_probe(struct i2c_client *client,
adau1701->sigmadsp = devm_sigmadsp_init_i2c(client,
&adau1701_sigmadsp_ops, ADAU1701_FIRMWARE);
- if (IS_ERR(adau1701->sigmadsp))
- return PTR_ERR(adau1701->sigmadsp);
+ if (IS_ERR(adau1701->sigmadsp)) {
+ ret = PTR_ERR(adau1701->sigmadsp);
+ goto exit_regulators_disable;
+ }
ret = snd_soc_register_codec(&client->dev, &adau1701_codec_drv,
&adau1701_dai, 1);
+
+exit_regulators_disable:
+
+ regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
return ret;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.