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drivers: bme280: do soft reset after boot

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To ensure that we have the same behaviour with a power cycle
and by pressing the reset button, we can perform soft reset
in `bme280_chip_init()`.

Signed-off-by: Efrain Calderon <efrain.calderon@aquarobur.com>
This commit is contained in:
Efrain Calderon 2021-07-27 19:34:04 +02:00 • committed by Christopher Friedt
commit c009450d44
2 changed files with 10 additions and 0 deletions
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8
drivers/sensor/bme280/bme280.c
View file

@ -353,6 +353,12 @@ static int bme280_chip_init(const struct device *dev)
return -ENOTSUP; return -ENOTSUP;
} }
err = bme280_reg_write(dev, BME280_REG_RESET, BME280_CMD_SOFT_RESET);
if (err < 0) {
LOG_DBG("Soft-reset failed: %d", err);
return err;
}
err = bme280_read_compensation(dev); err = bme280_read_compensation(dev);
if (err < 0) { if (err < 0) {
return err; return err;
@ -380,6 +386,8 @@ static int bme280_chip_init(const struct device *dev)
LOG_DBG("CONFIG write failed: %d", err); LOG_DBG("CONFIG write failed: %d", err);
return err; return err;
} }
/* Wait for the sensor to be ready */
k_sleep(K_MSEC(1));
#ifdef CONFIG_PM_DEVICE #ifdef CONFIG_PM_DEVICE
/* Set power state to ACTIVE */ /* Set power state to ACTIVE */

2
drivers/sensor/bme280/bme280.h
View file

@ -63,6 +63,7 @@ extern const struct bme280_bus_io bme280_bus_io_i2c;
#define BME280_REG_CTRL_MEAS 0xF4 #define BME280_REG_CTRL_MEAS 0xF4
#define BME280_REG_CTRL_HUM 0xF2 #define BME280_REG_CTRL_HUM 0xF2
#define BME280_REG_STATUS 0xF3 #define BME280_REG_STATUS 0xF3
#define BME280_REG_RESET 0xE0
#define BMP280_CHIP_ID_SAMPLE_1 0x56 #define BMP280_CHIP_ID_SAMPLE_1 0x56
#define BMP280_CHIP_ID_SAMPLE_2 0x57 #define BMP280_CHIP_ID_SAMPLE_2 0x57
@ -72,6 +73,7 @@ extern const struct bme280_bus_io bme280_bus_io_i2c;
#define BME280_MODE_FORCED 0x01 #define BME280_MODE_FORCED 0x01
#define BME280_MODE_NORMAL 0x03 #define BME280_MODE_NORMAL 0x03
#define BME280_SPI_3W_DISABLE 0x00 #define BME280_SPI_3W_DISABLE 0x00
#define BME280_CMD_SOFT_RESET 0xB6
#if defined CONFIG_BME280_MODE_NORMAL #if defined CONFIG_BME280_MODE_NORMAL
#define BME280_MODE BME280_MODE_NORMAL #define BME280_MODE BME280_MODE_NORMAL