Atlas Scientific RTD-SM OEM sensor reads temperate using
resistance temperature detector technology.
Signed-off-by: Matt Ranostay <matt.ranostay@xxxxxxxxxxxx>
---
drivers/iio/chemical/atlas-sensor.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/iio/chemical/atlas-sensor.c b/drivers/iio/chemical/atlas-sensor.c
index 82d470561ad3..c7ed9004cf82 100644
--- a/drivers/iio/chemical/atlas-sensor.c
+++ b/drivers/iio/chemical/atlas-sensor.c
@@ -68,16 +68,20 @@
#define ATLAS_REG_DO_TEMP_DATA 0x12
#define ATLAS_REG_DO_DATA 0x22
+#define ATLAS_REG_RTD_DATA 0x0e
+
#define ATLAS_PH_INT_TIME_IN_MS 450
#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 {
@@ -206,6 +210,22 @@ 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 = 'u',
+ .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;
@@ -350,6 +370,12 @@ 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)
@@ -566,6 +592,7 @@ 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);
@@ -575,6 +602,7 @@ 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);
--
2.20.1
