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ASoC: codecs: adau1373: add powerdown gpio

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If the powerdown GPIO is specified, we use it for reset. Otherwise,
fallback to a software reset.

Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20241028-adau1373-shutdown-v2-4-647f56bbd182@analog.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Nuno Sa 2024-10-28 16:43:41 +01:00 committed by Mark Brown
parent 71743cbe28
commit ba79bca407
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GPG Key ID: 24D68B725D5487D0
1 changed files with 27 additions and 1 deletions
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28
sound/soc/codecs/adau1373.c
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@ -8,6 +8,7 @@
#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>
@ -1485,6 +1486,11 @@ 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;
@ -1547,6 +1553,7 @@ static int adau1373_parse_fw(struct device *dev, struct adau1373 *adau1373)
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);
@ -1558,7 +1565,26 @@ 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);