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-rw-r--r--drivers/iio/chemical/ams-iaq-core.c1
-rw-r--r--drivers/iio/chemical/atlas-ph-sensor.c2
-rw-r--r--drivers/iio/chemical/ccs811.c87
-rw-r--r--drivers/iio/chemical/vz89x.c1
4 files changed, 85 insertions, 6 deletions
diff --git a/drivers/iio/chemical/ams-iaq-core.c b/drivers/iio/chemical/ams-iaq-core.c
index c948ad2ee9ad..d9e5950ad24a 100644
--- a/drivers/iio/chemical/ams-iaq-core.c
+++ b/drivers/iio/chemical/ams-iaq-core.c
@@ -141,7 +141,6 @@ err_out:
static const struct iio_info ams_iaqcore_info = {
.read_raw = ams_iaqcore_read_raw,
- .driver_module = THIS_MODULE,
};
static int ams_iaqcore_probe(struct i2c_client *client,
diff --git a/drivers/iio/chemical/atlas-ph-sensor.c b/drivers/iio/chemical/atlas-ph-sensor.c
index ef761a508630..8c4e05580091 100644
--- a/drivers/iio/chemical/atlas-ph-sensor.c
+++ b/drivers/iio/chemical/atlas-ph-sensor.c
@@ -344,7 +344,6 @@ static int atlas_buffer_predisable(struct iio_dev *indio_dev)
}
static const struct iio_trigger_ops atlas_interrupt_trigger_ops = {
- .owner = THIS_MODULE,
};
static const struct iio_buffer_setup_ops atlas_buffer_setup_ops = {
@@ -499,7 +498,6 @@ static int atlas_write_raw(struct iio_dev *indio_dev,
}
static const struct iio_info atlas_info = {
- .driver_module = THIS_MODULE,
.read_raw = atlas_read_raw,
.write_raw = atlas_write_raw,
};
diff --git a/drivers/iio/chemical/ccs811.c b/drivers/iio/chemical/ccs811.c
index 840a6cbd5f0f..97bce8345c6a 100644
--- a/drivers/iio/chemical/ccs811.c
+++ b/drivers/iio/chemical/ccs811.c
@@ -22,6 +22,7 @@
#include <linux/i2c.h>
#include <linux/iio/iio.h>
#include <linux/iio/buffer.h>
+#include <linux/iio/trigger.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/module.h>
@@ -59,6 +60,8 @@
#define CCS811_MODE_IAQ_60SEC 0x30
#define CCS811_MODE_RAW_DATA 0x40
+#define CCS811_MEAS_MODE_INTERRUPT BIT(3)
+
#define CCS811_VOLTAGE_MASK 0x3FF
struct ccs811_reading {
@@ -73,6 +76,8 @@ struct ccs811_data {
struct i2c_client *client;
struct mutex lock; /* Protect readings */
struct ccs811_reading buffer;
+ struct iio_trigger *drdy_trig;
+ bool drdy_trig_on;
};
static const struct iio_chan_spec ccs811_channels[] = {
@@ -193,10 +198,14 @@ static int ccs811_read_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_RAW:
+ ret = iio_device_claim_direct_mode(indio_dev);
+ if (ret)
+ return ret;
mutex_lock(&data->lock);
ret = ccs811_get_measurement(data);
if (ret < 0) {
mutex_unlock(&data->lock);
+ iio_device_release_direct_mode(indio_dev);
return ret;
}
@@ -228,6 +237,7 @@ static int ccs811_read_raw(struct iio_dev *indio_dev,
ret = -EINVAL;
}
mutex_unlock(&data->lock);
+ iio_device_release_direct_mode(indio_dev);
return ret;
@@ -270,7 +280,31 @@ static int ccs811_read_raw(struct iio_dev *indio_dev,
static const struct iio_info ccs811_info = {
.read_raw = ccs811_read_raw,
- .driver_module = THIS_MODULE,
+};
+
+static int ccs811_set_trigger_state(struct iio_trigger *trig,
+ bool state)
+{
+ struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+ struct ccs811_data *data = iio_priv(indio_dev);
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(data->client, CCS811_MEAS_MODE);
+ if (ret < 0)
+ return ret;
+
+ if (state)
+ ret |= CCS811_MEAS_MODE_INTERRUPT;
+ else
+ ret &= ~CCS811_MEAS_MODE_INTERRUPT;
+
+ data->drdy_trig_on = state;
+
+ return i2c_smbus_write_byte_data(data->client, CCS811_MEAS_MODE, ret);
+}
+
+static const struct iio_trigger_ops ccs811_trigger_ops = {
+ .set_trigger_state = ccs811_set_trigger_state,
};
static irqreturn_t ccs811_trigger_handler(int irq, void *p)
@@ -298,6 +332,17 @@ err:
return IRQ_HANDLED;
}
+static irqreturn_t ccs811_data_rdy_trigger_poll(int irq, void *private)
+{
+ struct iio_dev *indio_dev = private;
+ struct ccs811_data *data = iio_priv(indio_dev);
+
+ if (data->drdy_trig_on)
+ iio_trigger_poll(data->drdy_trig);
+
+ return IRQ_HANDLED;
+}
+
static int ccs811_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -346,16 +391,48 @@ static int ccs811_probe(struct i2c_client *client,
indio_dev->dev.parent = &client->dev;
indio_dev->name = id->name;
indio_dev->info = &ccs811_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = ccs811_channels;
indio_dev->num_channels = ARRAY_SIZE(ccs811_channels);
+ if (client->irq > 0) {
+ ret = devm_request_threaded_irq(&client->dev, client->irq,
+ ccs811_data_rdy_trigger_poll,
+ NULL,
+ IRQF_TRIGGER_FALLING |
+ IRQF_ONESHOT,
+ "ccs811_irq", indio_dev);
+ if (ret) {
+ dev_err(&client->dev, "irq request error %d\n", -ret);
+ goto err_poweroff;
+ }
+
+ data->drdy_trig = devm_iio_trigger_alloc(&client->dev,
+ "%s-dev%d",
+ indio_dev->name,
+ indio_dev->id);
+ if (!data->drdy_trig) {
+ ret = -ENOMEM;
+ goto err_poweroff;
+ }
+
+ data->drdy_trig->dev.parent = &client->dev;
+ data->drdy_trig->ops = &ccs811_trigger_ops;
+ iio_trigger_set_drvdata(data->drdy_trig, indio_dev);
+ indio_dev->trig = data->drdy_trig;
+ iio_trigger_get(indio_dev->trig);
+ ret = iio_trigger_register(data->drdy_trig);
+ if (ret)
+ goto err_poweroff;
+ }
+
ret = iio_triggered_buffer_setup(indio_dev, NULL,
ccs811_trigger_handler, NULL);
if (ret < 0) {
dev_err(&client->dev, "triggered buffer setup failed\n");
- goto err_poweroff;
+ goto err_trigger_unregister;
}
ret = iio_device_register(indio_dev);
@@ -367,6 +444,9 @@ static int ccs811_probe(struct i2c_client *client,
err_buffer_cleanup:
iio_triggered_buffer_cleanup(indio_dev);
+err_trigger_unregister:
+ if (data->drdy_trig)
+ iio_trigger_unregister(data->drdy_trig);
err_poweroff:
i2c_smbus_write_byte_data(client, CCS811_MEAS_MODE, CCS811_MODE_IDLE);
@@ -376,9 +456,12 @@ err_poweroff:
static int ccs811_remove(struct i2c_client *client)
{
struct iio_dev *indio_dev = i2c_get_clientdata(client);
+ struct ccs811_data *data = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
+ if (data->drdy_trig)
+ iio_trigger_unregister(data->drdy_trig);
return i2c_smbus_write_byte_data(client, CCS811_MEAS_MODE,
CCS811_MODE_IDLE);
diff --git a/drivers/iio/chemical/vz89x.c b/drivers/iio/chemical/vz89x.c
index f75eea6822f2..9c9095ba4227 100644
--- a/drivers/iio/chemical/vz89x.c
+++ b/drivers/iio/chemical/vz89x.c
@@ -326,7 +326,6 @@ static int vz89x_read_raw(struct iio_dev *indio_dev,
static const struct iio_info vz89x_info = {
.attrs = &vz89x_attrs_group,
.read_raw = vz89x_read_raw,
- .driver_module = THIS_MODULE,
};
static const struct vz89x_chip_data vz89x_chips[] = {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 03:02:53 +0100