[PATCH v1 07/13] iio: chemical: bme680: add regulators

vamoirid
2024-10-10T21:00:49Z

From: Vasileios Amoiridis <vassilisamir@gmail.com>

Add support for the regulators described in the dt-binding.

Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
---
drivers/iio/chemical/bme680_core.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)

diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme680_core.c
index dedb7edaf43d..a2039b966f20 100644
--- a/drivers/iio/chemical/bme680_core.c
+++ b/drivers/iio/chemical/bme680_core.c
@@ -15,6 +15,7 @@
#include <linux/log2.h>
#include <linux/module.h>
#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>

#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
@@ -100,6 +101,12 @@ enum bme680_op_mode {
BME680_FORCED,
};

+static const char *const bme680_supply_names[] = {
+ "vdd", "vddio"
+};
+
+#define BME680_NUM_SUPPLIES ARRAY_SIZE(bme680_supply_names)
+
struct bme680_data {
struct regmap *regmap;
struct bme680_calib bme680;
@@ -110,6 +117,8 @@ struct bme680_data {
u16 heater_dur;
u16 heater_temp;

+ struct regulator_bulk_data supplies[BME680_NUM_SUPPLIES];
+
union {
u8 buf[3];
unsigned int check;
@@ -857,6 +866,13 @@ static const struct iio_info bme680_info = {
.attrs = &bme680_attribute_group,
};

+static void bme680_regulators_disable(void *data)
+{
+ struct regulator_bulk_data *supplies = data;
+
+ regulator_bulk_disable(BME680_NUM_SUPPLIES, supplies);
+}
+
int bme680_core_probe(struct device *dev, struct regmap *regmap,
const char *name)
{
@@ -885,6 +901,20 @@ int bme680_core_probe(struct device *dev, struct regmap *regmap,
data->heater_temp = 320; /* degree Celsius */
data->heater_dur = 150; /* milliseconds */

+ regulator_bulk_set_supply_names(data->supplies, bme680_supply_names,
+ BME680_NUM_SUPPLIES);
+ ret = devm_regulator_bulk_get(dev, BME680_NUM_SUPPLIES, data->supplies);
+ if (ret)
+ return dev_err_probe(dev, ret, "failed to get regulators\n");
+
+ ret = regulator_bulk_enable(BME680_NUM_SUPPLIES, data->supplies);
+ if (ret)
+ return dev_err_probe(dev, ret, "failed to enable regulators\n");
+
+ devm_add_action_or_reset(dev, bme680_regulators_disable, data->supplies);
+
+ fsleep(BME680_STARTUP_TIME_US);
+
ret = regmap_write(regmap, BME680_REG_SOFT_RESET, BME680_CMD_SOFTRESET);
if (ret < 0)
return dev_err_probe(dev, ret, "Failed to reset chip\n");
--
2.43.0