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-rw-r--r--drivers/iio/chemical/Kconfig11
-rw-r--r--drivers/iio/chemical/Makefile1
-rw-r--r--drivers/iio/chemical/atlas-ezo-sensor.c177
-rw-r--r--drivers/iio/chemical/atlas-sensor.c36
-rw-r--r--drivers/iio/chemical/bme680_core.c36
-rw-r--r--drivers/iio/chemical/ccs811.c112
-rw-r--r--drivers/iio/chemical/pms7003.c17
-rw-r--r--drivers/iio/chemical/sps30.c9
8 files changed, 362 insertions, 37 deletions
diff --git a/drivers/iio/chemical/Kconfig b/drivers/iio/chemical/Kconfig
index a7e65a59bf42..7f21afd73b1c 100644
--- a/drivers/iio/chemical/Kconfig
+++ b/drivers/iio/chemical/Kconfig
@@ -22,6 +22,17 @@ config ATLAS_PH_SENSOR
To compile this driver as module, choose M here: the
module will be called atlas-ph-sensor.
+config ATLAS_EZO_SENSOR
+ tristate "Atlas Scientific EZO sensors"
+ depends on I2C
+ help
+ Say Y here to build I2C interface support for the following
+ Atlas Scientific EZO sensors
+ * CO2 EZO Sensor
+
+ To compile this driver as module, choose M here: the
+ module will be called atlas-ezo-sensor.
+
config BME680
tristate "Bosch Sensortec BME680 sensor driver"
depends on (I2C || SPI)
diff --git a/drivers/iio/chemical/Makefile b/drivers/iio/chemical/Makefile
index 33d3a595dda9..aba4167db745 100644
--- a/drivers/iio/chemical/Makefile
+++ b/drivers/iio/chemical/Makefile
@@ -5,6 +5,7 @@
# When adding new entries keep the list in alphabetical order
obj-$(CONFIG_ATLAS_PH_SENSOR) += atlas-sensor.o
+obj-$(CONFIG_ATLAS_EZO_SENSOR) += atlas-ezo-sensor.o
obj-$(CONFIG_BME680) += bme680_core.o
obj-$(CONFIG_BME680_I2C) += bme680_i2c.o
obj-$(CONFIG_BME680_SPI) += bme680_spi.o
diff --git a/drivers/iio/chemical/atlas-ezo-sensor.c b/drivers/iio/chemical/atlas-ezo-sensor.c
new file mode 100644
index 000000000000..f5a6d8ec6d4d
--- /dev/null
+++ b/drivers/iio/chemical/atlas-ezo-sensor.c
@@ -0,0 +1,177 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * atlas-ezo-sensor.c - Support for Atlas Scientific EZO sensors
+ *
+ * Copyright (C) 2020 Konsulko Group
+ * Author: Matt Ranostay <matt.ranostay@konsulko.com>
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/of_device.h>
+#include <linux/iio/iio.h>
+
+#define ATLAS_EZO_DRV_NAME "atlas-ezo-sensor"
+#define ATLAS_CO2_INT_TIME_IN_MS 950
+
+enum {
+ ATLAS_CO2_EZO,
+};
+
+struct atlas_ezo_device {
+ const struct iio_chan_spec *channels;
+ int num_channels;
+ int delay;
+};
+
+struct atlas_ezo_data {
+ struct i2c_client *client;
+ struct atlas_ezo_device *chip;
+
+ /* lock to avoid multiple concurrent read calls */
+ struct mutex lock;
+
+ u8 buffer[8];
+};
+
+static const struct iio_chan_spec atlas_co2_ezo_channels[] = {
+ {
+ .type = IIO_CONCENTRATION,
+ .modified = 1,
+ .channel2 = IIO_MOD_CO2,
+ .info_mask_separate =
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ .scan_index = 0,
+ .scan_type = {
+ .sign = 'u',
+ .realbits = 32,
+ .storagebits = 32,
+ .endianness = IIO_CPU,
+ },
+ },
+};
+
+static struct atlas_ezo_device atlas_ezo_devices[] = {
+ [ATLAS_CO2_EZO] = {
+ .channels = atlas_co2_ezo_channels,
+ .num_channels = 1,
+ .delay = ATLAS_CO2_INT_TIME_IN_MS,
+ },
+};
+
+static int atlas_ezo_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long mask)
+{
+ struct atlas_ezo_data *data = iio_priv(indio_dev);
+ struct i2c_client *client = data->client;
+ int ret = 0;
+
+ if (chan->type != IIO_CONCENTRATION)
+ return -EINVAL;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW: {
+ long tmp;
+
+ mutex_lock(&data->lock);
+
+ tmp = i2c_smbus_write_byte(client, 'R');
+
+ if (tmp < 0) {
+ mutex_unlock(&data->lock);
+ return tmp;
+ }
+
+ msleep(data->chip->delay);
+
+ tmp = i2c_master_recv(client, data->buffer, sizeof(data->buffer));
+
+ if (tmp < 0 || data->buffer[0] != 1) {
+ mutex_unlock(&data->lock);
+ return -EBUSY;
+ }
+
+ ret = kstrtol(data->buffer + 1, 10, &tmp);
+
+ *val = tmp;
+
+ mutex_unlock(&data->lock);
+
+ return ret ? ret : IIO_VAL_INT;
+ }
+ case IIO_CHAN_INFO_SCALE:
+ *val = 0;
+ *val2 = 100; /* 0.0001 */
+ return IIO_VAL_INT_PLUS_MICRO;
+ }
+
+ return ret;
+}
+
+static const struct iio_info atlas_info = {
+ .read_raw = atlas_ezo_read_raw,
+};
+
+static const struct i2c_device_id atlas_ezo_id[] = {
+ { "atlas-co2-ezo", ATLAS_CO2_EZO },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, atlas_ezo_id);
+
+static const struct of_device_id atlas_ezo_dt_ids[] = {
+ { .compatible = "atlas,co2-ezo", .data = (void *)ATLAS_CO2_EZO, },
+ {}
+};
+MODULE_DEVICE_TABLE(of, atlas_ezo_dt_ids);
+
+static int atlas_ezo_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct atlas_ezo_data *data;
+ struct atlas_ezo_device *chip;
+ const struct of_device_id *of_id;
+ struct iio_dev *indio_dev;
+
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ of_id = of_match_device(atlas_ezo_dt_ids, &client->dev);
+ if (!of_id)
+ chip = &atlas_ezo_devices[id->driver_data];
+ else
+ chip = &atlas_ezo_devices[(unsigned long)of_id->data];
+
+ indio_dev->info = &atlas_info;
+ indio_dev->name = ATLAS_EZO_DRV_NAME;
+ indio_dev->channels = chip->channels;
+ indio_dev->num_channels = chip->num_channels;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->dev.parent = &client->dev;
+
+ data = iio_priv(indio_dev);
+ data->client = client;
+ data->chip = chip;
+ mutex_init(&data->lock);
+
+ return devm_iio_device_register(&client->dev, indio_dev);
+};
+
+static struct i2c_driver atlas_ezo_driver = {
+ .driver = {
+ .name = ATLAS_EZO_DRV_NAME,
+ .of_match_table = atlas_ezo_dt_ids,
+ },
+ .probe = atlas_ezo_probe,
+ .id_table = atlas_ezo_id,
+};
+module_i2c_driver(atlas_ezo_driver);
+
+MODULE_AUTHOR("Matt Ranostay <matt.ranostay@konsulko.com>");
+MODULE_DESCRIPTION("Atlas Scientific EZO sensors");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/chemical/atlas-sensor.c b/drivers/iio/chemical/atlas-sensor.c
index 7b199ce16ecf..78a27e36bf32 100644
--- a/drivers/iio/chemical/atlas-sensor.c
+++ b/drivers/iio/chemical/atlas-sensor.c
@@ -53,6 +53,8 @@
#define ATLAS_REG_DO_CALIB_STATUS_PRESSURE BIT(0)
#define ATLAS_REG_DO_CALIB_STATUS_DO BIT(1)
+#define ATLAS_REG_RTD_DATA 0x0e
+
#define ATLAS_REG_PH_TEMP_DATA 0x0e
#define ATLAS_REG_PH_DATA 0x16
@@ -72,12 +74,14 @@
#define ATLAS_EC_INT_TIME_IN_MS 650
#define ATLAS_ORP_INT_TIME_IN_MS 450
#define ATLAS_DO_INT_TIME_IN_MS 450
+#define ATLAS_RTD_INT_TIME_IN_MS 450
enum {
ATLAS_PH_SM,
ATLAS_EC_SM,
ATLAS_ORP_SM,
ATLAS_DO_SM,
+ ATLAS_RTD_SM,
};
struct atlas_data {
@@ -218,6 +222,22 @@ static const struct iio_chan_spec atlas_do_channels[] = {
},
};
+static const struct iio_chan_spec atlas_rtd_channels[] = {
+ {
+ .type = IIO_TEMP,
+ .address = ATLAS_REG_RTD_DATA,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+ .scan_index = 0,
+ .scan_type = {
+ .sign = 's',
+ .realbits = 32,
+ .storagebits = 32,
+ .endianness = IIO_BE,
+ },
+ },
+ IIO_CHAN_SOFT_TIMESTAMP(1),
+};
+
static int atlas_check_ph_calibration(struct atlas_data *data)
{
struct device *dev = &data->client->dev;
@@ -362,6 +382,12 @@ static struct atlas_device atlas_devices[] = {
.calibration = &atlas_check_do_calibration,
.delay = ATLAS_DO_INT_TIME_IN_MS,
},
+ [ATLAS_RTD_SM] = {
+ .channels = atlas_rtd_channels,
+ .num_channels = 2,
+ .data_reg = ATLAS_REG_RTD_DATA,
+ .delay = ATLAS_RTD_INT_TIME_IN_MS,
+ },
};
static int atlas_set_powermode(struct atlas_data *data, int on)
@@ -438,8 +464,7 @@ static irqreturn_t atlas_trigger_handler(int irq, void *private)
int ret;
ret = regmap_bulk_read(data->regmap, data->chip->data_reg,
- (u8 *) &data->buffer,
- sizeof(__be32) * channels);
+ &data->buffer, sizeof(__be32) * channels);
if (!ret)
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
@@ -475,7 +500,7 @@ static int atlas_read_measurement(struct atlas_data *data, int reg, __be32 *val)
if (suspended)
msleep(data->chip->delay);
- ret = regmap_bulk_read(data->regmap, reg, (u8 *) val, sizeof(*val));
+ ret = regmap_bulk_read(data->regmap, reg, val, sizeof(*val));
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
@@ -490,6 +515,7 @@ static int atlas_read_raw(struct iio_dev *indio_dev,
struct atlas_data *data = iio_priv(indio_dev);
switch (mask) {
+ case IIO_CHAN_INFO_PROCESSED:
case IIO_CHAN_INFO_RAW: {
int ret;
__be32 reg;
@@ -497,7 +523,7 @@ static int atlas_read_raw(struct iio_dev *indio_dev,
switch (chan->type) {
case IIO_TEMP:
ret = regmap_bulk_read(data->regmap, chan->address,
- (u8 *) &reg, sizeof(reg));
+ &reg, sizeof(reg));
break;
case IIO_PH:
case IIO_CONCENTRATION:
@@ -578,6 +604,7 @@ static const struct i2c_device_id atlas_id[] = {
{ "atlas-ec-sm", ATLAS_EC_SM},
{ "atlas-orp-sm", ATLAS_ORP_SM},
{ "atlas-do-sm", ATLAS_DO_SM},
+ { "atlas-rtd-sm", ATLAS_RTD_SM},
{}
};
MODULE_DEVICE_TABLE(i2c, atlas_id);
@@ -587,6 +614,7 @@ static const struct of_device_id atlas_dt_ids[] = {
{ .compatible = "atlas,ec-sm", .data = (void *)ATLAS_EC_SM, },
{ .compatible = "atlas,orp-sm", .data = (void *)ATLAS_ORP_SM, },
{ .compatible = "atlas,do-sm", .data = (void *)ATLAS_DO_SM, },
+ { .compatible = "atlas,rtd-sm", .data = (void *)ATLAS_RTD_SM, },
{ }
};
MODULE_DEVICE_TABLE(of, atlas_dt_ids);
diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme680_core.c
index ccde4c65ff93..13773e01699b 100644
--- a/drivers/iio/chemical/bme680_core.c
+++ b/drivers/iio/chemical/bme680_core.c
@@ -114,14 +114,16 @@ static int bme680_read_calib(struct bme680_data *data,
__le16 buf;
/* Temperature related coefficients */
- ret = regmap_bulk_read(data->regmap, BME680_T1_LSB_REG, (u8 *) &buf, 2);
+ ret = regmap_bulk_read(data->regmap, BME680_T1_LSB_REG,
+ &buf, sizeof(buf));
if (ret < 0) {
dev_err(dev, "failed to read BME680_T1_LSB_REG\n");
return ret;
}
calib->par_t1 = le16_to_cpu(buf);
- ret = regmap_bulk_read(data->regmap, BME680_T2_LSB_REG, (u8 *) &buf, 2);
+ ret = regmap_bulk_read(data->regmap, BME680_T2_LSB_REG,
+ &buf, sizeof(buf));
if (ret < 0) {
dev_err(dev, "failed to read BME680_T2_LSB_REG\n");
return ret;
@@ -136,14 +138,16 @@ static int bme680_read_calib(struct bme680_data *data,
calib->par_t3 = tmp;
/* Pressure related coefficients */
- ret = regmap_bulk_read(data->regmap, BME680_P1_LSB_REG, (u8 *) &buf, 2);
+ ret = regmap_bulk_read(data->regmap, BME680_P1_LSB_REG,
+ &buf, sizeof(buf));
if (ret < 0) {
dev_err(dev, "failed to read BME680_P1_LSB_REG\n");
return ret;
}
calib->par_p1 = le16_to_cpu(buf);
- ret = regmap_bulk_read(data->regmap, BME680_P2_LSB_REG, (u8 *) &buf, 2);
+ ret = regmap_bulk_read(data->regmap, BME680_P2_LSB_REG,
+ &buf, sizeof(buf));
if (ret < 0) {
dev_err(dev, "failed to read BME680_P2_LSB_REG\n");
return ret;
@@ -157,14 +161,16 @@ static int bme680_read_calib(struct bme680_data *data,
}
calib->par_p3 = tmp;
- ret = regmap_bulk_read(data->regmap, BME680_P4_LSB_REG, (u8 *) &buf, 2);
+ ret = regmap_bulk_read(data->regmap, BME680_P4_LSB_REG,
+ &buf, sizeof(buf));
if (ret < 0) {
dev_err(dev, "failed to read BME680_P4_LSB_REG\n");
return ret;
}
calib->par_p4 = le16_to_cpu(buf);
- ret = regmap_bulk_read(data->regmap, BME680_P5_LSB_REG, (u8 *) &buf, 2);
+ ret = regmap_bulk_read(data->regmap, BME680_P5_LSB_REG,
+ &buf, sizeof(buf));
if (ret < 0) {
dev_err(dev, "failed to read BME680_P5_LSB_REG\n");
return ret;
@@ -185,14 +191,16 @@ static int bme680_read_calib(struct bme680_data *data,
}
calib->par_p7 = tmp;
- ret = regmap_bulk_read(data->regmap, BME680_P8_LSB_REG, (u8 *) &buf, 2);
+ ret = regmap_bulk_read(data->regmap, BME680_P8_LSB_REG,
+ &buf, sizeof(buf));
if (ret < 0) {
dev_err(dev, "failed to read BME680_P8_LSB_REG\n");
return ret;
}
calib->par_p8 = le16_to_cpu(buf);
- ret = regmap_bulk_read(data->regmap, BME680_P9_LSB_REG, (u8 *) &buf, 2);
+ ret = regmap_bulk_read(data->regmap, BME680_P9_LSB_REG,
+ &buf, sizeof(buf));
if (ret < 0) {
dev_err(dev, "failed to read BME680_P9_LSB_REG\n");
return ret;
@@ -276,8 +284,8 @@ static int bme680_read_calib(struct bme680_data *data,
}
calib->par_gh1 = tmp;
- ret = regmap_bulk_read(data->regmap, BME680_GH2_LSB_REG, (u8 *) &buf,
- 2);
+ ret = regmap_bulk_read(data->regmap, BME680_GH2_LSB_REG,
+ &buf, sizeof(buf));
if (ret < 0) {
dev_err(dev, "failed to read BME680_GH2_LSB_REG\n");
return ret;
@@ -615,7 +623,7 @@ static int bme680_read_temp(struct bme680_data *data, int *val)
return ret;
ret = regmap_bulk_read(data->regmap, BME680_REG_TEMP_MSB,
- (u8 *) &tmp, 3);
+ &tmp, 3);
if (ret < 0) {
dev_err(dev, "failed to read temperature\n");
return ret;
@@ -656,7 +664,7 @@ static int bme680_read_press(struct bme680_data *data,
return ret;
ret = regmap_bulk_read(data->regmap, BME680_REG_PRESS_MSB,
- (u8 *) &tmp, 3);
+ &tmp, 3);
if (ret < 0) {
dev_err(dev, "failed to read pressure\n");
return ret;
@@ -689,7 +697,7 @@ static int bme680_read_humid(struct bme680_data *data,
return ret;
ret = regmap_bulk_read(data->regmap, BM6880_REG_HUMIDITY_MSB,
- (u8 *) &tmp, 2);
+ &tmp, sizeof(tmp));
if (ret < 0) {
dev_err(dev, "failed to read humidity\n");
return ret;
@@ -754,7 +762,7 @@ static int bme680_read_gas(struct bme680_data *data,
}
ret = regmap_bulk_read(data->regmap, BME680_REG_GAS_MSB,
- (u8 *) &tmp, 2);
+ &tmp, sizeof(tmp));
if (ret < 0) {
dev_err(dev, "failed to read gas resistance\n");
return ret;
diff --git a/drivers/iio/chemical/ccs811.c b/drivers/iio/chemical/ccs811.c
index 2ebdfc35bcda..3ecd633f9ed3 100644
--- a/drivers/iio/chemical/ccs811.c
+++ b/drivers/iio/chemical/ccs811.c
@@ -16,6 +16,7 @@
*/
#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/iio/iio.h>
#include <linux/iio/buffer.h>
@@ -36,6 +37,7 @@
#define CCS811_ERR 0xE0
/* Used to transition from boot to application mode */
#define CCS811_APP_START 0xF4
+#define CCS811_SW_RESET 0xFF
/* Status register flags */
#define CCS811_STATUS_ERROR BIT(0)
@@ -74,6 +76,7 @@ struct ccs811_data {
struct mutex lock; /* Protect readings */
struct ccs811_reading buffer;
struct iio_trigger *drdy_trig;
+ struct gpio_desc *wakeup_gpio;
bool drdy_trig_on;
};
@@ -166,10 +169,25 @@ static int ccs811_setup(struct i2c_client *client)
CCS811_MODE_IAQ_1SEC);
}
+static void ccs811_set_wakeup(struct ccs811_data *data, bool enable)
+{
+ if (!data->wakeup_gpio)
+ return;
+
+ gpiod_set_value(data->wakeup_gpio, enable);
+
+ if (enable)
+ usleep_range(50, 60);
+ else
+ usleep_range(20, 30);
+}
+
static int ccs811_get_measurement(struct ccs811_data *data)
{
int ret, tries = 11;
+ ccs811_set_wakeup(data, true);
+
/* Maximum waiting time: 1s, as measurements are made every second */
while (tries-- > 0) {
ret = i2c_smbus_read_byte_data(data->client, CCS811_STATUS);
@@ -183,9 +201,12 @@ static int ccs811_get_measurement(struct ccs811_data *data)
if (!(ret & CCS811_STATUS_DATA_READY))
return -EIO;
- return i2c_smbus_read_i2c_block_data(data->client,
+ ret = i2c_smbus_read_i2c_block_data(data->client,
CCS811_ALG_RESULT_DATA, 8,
(char *)&data->buffer);
+ ccs811_set_wakeup(data, false);
+
+ return ret;
}
static int ccs811_read_raw(struct iio_dev *indio_dev,
@@ -336,6 +357,45 @@ static irqreturn_t ccs811_data_rdy_trigger_poll(int irq, void *private)
return IRQ_HANDLED;
}
+static int ccs811_reset(struct i2c_client *client)
+{
+ struct gpio_desc *reset_gpio;
+ int ret;
+
+ reset_gpio = devm_gpiod_get_optional(&client->dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(reset_gpio))
+ return PTR_ERR(reset_gpio);
+
+ /* Try to reset using nRESET pin if available else do SW reset */
+ if (reset_gpio) {
+ gpiod_set_value(reset_gpio, 1);
+ usleep_range(20, 30);
+ gpiod_set_value(reset_gpio, 0);
+ } else {
+ /*
+ * As per the datasheet, this sequence of values needs to be
+ * written to the SW_RESET register for triggering the soft
+ * reset in the device and placing it in boot mode.
+ */
+ static const u8 reset_seq[] = {
+ 0x11, 0xE5, 0x72, 0x8A,
+ };
+
+ ret = i2c_smbus_write_i2c_block_data(client, CCS811_SW_RESET,
+ sizeof(reset_seq), reset_seq);
+ if (ret < 0) {
+ dev_err(&client->dev, "Failed to reset sensor\n");
+ return ret;
+ }
+ }
+
+ /* tSTART delay required after reset */
+ usleep_range(1000, 2000);
+
+ return 0;
+}
+
static int ccs811_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -348,36 +408,59 @@ static int ccs811_probe(struct i2c_client *client,
| I2C_FUNC_SMBUS_READ_I2C_BLOCK))
return -EOPNOTSUPP;
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ data = iio_priv(indio_dev);
+ i2c_set_clientdata(client, indio_dev);
+ data->client = client;
+
+ data->wakeup_gpio = devm_gpiod_get_optional(&client->dev, "wakeup",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(data->wakeup_gpio))
+ return PTR_ERR(data->wakeup_gpio);
+
+ ccs811_set_wakeup(data, true);
+
+ ret = ccs811_reset(client);
+ if (ret) {
+ ccs811_set_wakeup(data, false);
+ return ret;
+ }
+
/* Check hardware id (should be 0x81 for this family of devices) */
ret = i2c_smbus_read_byte_data(client, CCS811_HW_ID);
- if (ret < 0)
+ if (ret < 0) {
+ ccs811_set_wakeup(data, false);
return ret;
+ }
if (ret != CCS811_HW_ID_VALUE) {
dev_err(&client->dev, "hardware id doesn't match CCS81x\n");
+ ccs811_set_wakeup(data, false);
return -ENODEV;
}
ret = i2c_smbus_read_byte_data(client, CCS811_HW_VERSION);
- if (ret < 0)
+ if (ret < 0) {
+ ccs811_set_wakeup(data, false);
return ret;
+ }
if ((ret & CCS811_HW_VERSION_MASK) != CCS811_HW_VERSION_VALUE) {
dev_err(&client->dev, "no CCS811 sensor\n");
+ ccs811_set_wakeup(data, false);
return -ENODEV;
}
- indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
- if (!indio_dev)
- return -ENOMEM;
-
ret = ccs811_setup(client);
- if (ret < 0)
+ if (ret < 0) {
+ ccs811_set_wakeup(data, false);
return ret;
+ }
- data = iio_priv(indio_dev);
- i2c_set_clientdata(client, indio_dev);
- data->client = client;
+ ccs811_set_wakeup(data, false);
mutex_init(&data->lock);
@@ -466,9 +549,16 @@ static const struct i2c_device_id ccs811_id[] = {
};
MODULE_DEVICE_TABLE(i2c, ccs811_id);
+static const struct of_device_id ccs811_dt_ids[] = {
+ { .compatible = "ams,ccs811" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, ccs811_dt_ids);
+
static struct i2c_driver ccs811_driver = {
.driver = {
.name = "ccs811",
+ .of_match_table = ccs811_dt_ids,
},
.probe = ccs811_probe,
.remove = ccs811_remove,
diff --git a/drivers/iio/chemical/pms7003.c b/drivers/iio/chemical/pms7003.c
index 23c9ab252470..07bb90d72434 100644
--- a/drivers/iio/chemical/pms7003.c
+++ b/drivers/iio/chemical/pms7003.c
@@ -73,6 +73,11 @@ struct pms7003_state {
struct pms7003_frame frame;
struct completion frame_ready;
struct mutex lock; /* must be held whenever state gets touched */
+ /* Used to construct scan to push to the IIO buffer */
+ struct {
+ u16 data[3]; /* PM1, PM2P5, PM10 */
+ s64 ts;
+ } scan;
};
static int pms7003_do_cmd(struct pms7003_state *state, enum pms7003_cmd cmd)
@@ -104,7 +109,6 @@ static irqreturn_t pms7003_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct pms7003_state *state = iio_priv(indio_dev);
struct pms7003_frame *frame = &state->frame;
- u16 data[3 + 1 + 4]; /* PM1, PM2P5, PM10, padding, timestamp */
int ret;
mutex_lock(&state->lock);
@@ -114,12 +118,15 @@ static irqreturn_t pms7003_trigger_handler(int irq, void *p)
goto err;
}
- data[PM1] = pms7003_get_pm(frame->data + PMS7003_PM1_OFFSET);
- data[PM2P5] = pms7003_get_pm(frame->data + PMS7003_PM2P5_OFFSET);
- data[PM10] = pms7003_get_pm(frame->data + PMS7003_PM10_OFFSET);
+ state->scan.data[PM1] =
+ pms7003_get_pm(frame->data + PMS7003_PM1_OFFSET);
+ state->scan.data[PM2P5] =
+ pms7003_get_pm(frame->data + PMS7003_PM2P5_OFFSET);
+ state->scan.data[PM10] =
+ pms7003_get_pm(frame->data + PMS7003_PM10_OFFSET);
mutex_unlock(&state->lock);
- iio_push_to_buffers_with_timestamp(indio_dev, data,
+ iio_push_to_buffers_with_timestamp(indio_dev, &state->scan,
iio_get_time_ns(indio_dev));
err:
iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/iio/chemical/sps30.c b/drivers/iio/chemical/sps30.c
index acb9f8ecbb3d..a88c1fb875a0 100644
--- a/drivers/iio/chemical/sps30.c
+++ b/drivers/iio/chemical/sps30.c
@@ -230,15 +230,18 @@ static irqreturn_t sps30_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct sps30_state *state = iio_priv(indio_dev);
int ret;
- s32 data[4 + 2]; /* PM1, PM2P5, PM4, PM10, timestamp */
+ struct {
+ s32 data[4]; /* PM1, PM2P5, PM4, PM10 */
+ s64 ts;
+ } scan;
mutex_lock(&state->lock);
- ret = sps30_do_meas(state, data, 4);
+ ret = sps30_do_meas(state, scan.data, ARRAY_SIZE(scan.data));
mutex_unlock(&state->lock);
if (ret)
goto err;
- iio_push_to_buffers_with_timestamp(indio_dev, data,
+ iio_push_to_buffers_with_timestamp(indio_dev, &scan,
iio_get_time_ns(indio_dev));
err:
iio_trigger_notify_done(indio_dev->trig);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.