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path: root/drivers/iio/humidity
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-rw-r--r--drivers/iio/humidity/Kconfig2
-rw-r--r--drivers/iio/humidity/am2315.c2
-rw-r--r--drivers/iio/humidity/hdc100x.c27
3 files changed, 10 insertions, 21 deletions
diff --git a/drivers/iio/humidity/Kconfig b/drivers/iio/humidity/Kconfig
index f155386286bf..b17e2e2bd4f5 100644
--- a/drivers/iio/humidity/Kconfig
+++ b/drivers/iio/humidity/Kconfig
@@ -6,6 +6,8 @@ menu "Humidity sensors"
config AM2315
tristate "Aosong AM2315 relative humidity and temperature sensor"
depends on I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
help
If you say yes here you get support for the Aosong AM2315
relative humidity and ambient temperature sensor.
diff --git a/drivers/iio/humidity/am2315.c b/drivers/iio/humidity/am2315.c
index 3e200f69e886..ff96b6d0fdae 100644
--- a/drivers/iio/humidity/am2315.c
+++ b/drivers/iio/humidity/am2315.c
@@ -244,7 +244,7 @@ static int am2315_probe(struct i2c_client *client,
indio_dev->channels = am2315_channels;
indio_dev->num_channels = ARRAY_SIZE(am2315_channels);
- ret = iio_triggered_buffer_setup(indio_dev, NULL,
+ ret = iio_triggered_buffer_setup(indio_dev, iio_pollfunc_store_time,
am2315_trigger_handler, NULL);
if (ret < 0) {
dev_err(&client->dev, "iio triggered buffer setup failed\n");
diff --git a/drivers/iio/humidity/hdc100x.c b/drivers/iio/humidity/hdc100x.c
index a03832a5fc95..e0c9c70c2a4a 100644
--- a/drivers/iio/humidity/hdc100x.c
+++ b/drivers/iio/humidity/hdc100x.c
@@ -142,7 +142,7 @@ static int hdc100x_get_measurement(struct hdc100x_data *data,
struct i2c_client *client = data->client;
int delay = data->adc_int_us[chan->address];
int ret;
- int val;
+ __be16 val;
/* start measurement */
ret = i2c_smbus_write_byte(client, chan->address);
@@ -154,26 +154,13 @@ static int hdc100x_get_measurement(struct hdc100x_data *data,
/* wait for integration time to pass */
usleep_range(delay, delay + 1000);
- /*
- * i2c_smbus_read_word_data cannot() be used here due to the command
- * value not being understood and causes NAKs preventing any reading
- * from being accessed.
- */
- ret = i2c_smbus_read_byte(client);
+ /* read measurement */
+ ret = i2c_master_recv(data->client, (char *)&val, sizeof(val));
if (ret < 0) {
- dev_err(&client->dev, "cannot read high byte measurement");
+ dev_err(&client->dev, "cannot read sensor data\n");
return ret;
}
- val = ret << 8;
-
- ret = i2c_smbus_read_byte(client);
- if (ret < 0) {
- dev_err(&client->dev, "cannot read low byte measurement");
- return ret;
- }
- val |= ret;
-
- return val;
+ return be16_to_cpu(val);
}
static int hdc100x_get_heater_status(struct hdc100x_data *data)
@@ -272,8 +259,8 @@ static int hdc100x_probe(struct i2c_client *client,
struct iio_dev *indio_dev;
struct hdc100x_data *data;
- if (!i2c_check_functionality(client->adapter,
- I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BYTE))
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA |
+ I2C_FUNC_SMBUS_BYTE | I2C_FUNC_I2C))
return -EOPNOTSUPP;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));