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| author |   Matt Ranostay <matt.ranostay@konsulko.com> | 2020-04-25 10:25:20 +0300 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-04-25 15:20:47 +0100 |
| commit | b101c93ca5e2d4f9b0881c510a3913c9a292b33a (patch) | |
| tree | 5b4401f063b294365ac789eb194e3ff57a5b3420 /drivers/iio/chemical | |
| parent | dt-bindings: iio: chemical: add Atlas Scientific RTD-SM sensor docs (diff) | |
| download | linux-dev-b101c93ca5e2d4f9b0881c510a3913c9a292b33a.tar.xz linux-dev-b101c93ca5e2d4f9b0881c510a3913c9a292b33a.zip | |
iio: chemical: atlas-sensor: add RTD-SM module support
Atlas Scientific RTD-SM OEM sensor reads temperature using
resistance temperature detector technology.
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/chemical')
| -rw-r--r-- | drivers/iio/chemical/atlas-sensor.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/iio/chemical/atlas-sensor.c b/drivers/iio/chemical/atlas-sensor.c index 973cdb4f1e83..a6d996ab9a66 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 { @@ -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 = '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; @@ -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) @@ -477,6 +503,7 @@ 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; @@ -565,6 +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); @@ -574,6 +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); |