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author | Petre Rodan <petre.rodan@subdimension.ro> | 2023-12-07 19:46:29 +0300 |
---|---|---|
committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2023-12-11 22:16:35 +0300 |
commit | 6362d96585e35b433981b3833a9e2737cec33774 (patch) | |
tree | 871fba94c675d451276210b573ff216b45a8b34e /drivers/iio/pressure/hsc030pa_spi.c | |
parent | 5fc0a980cca0b0d98558abbc7691b5f24d573b1a (diff) | |
download | linux-6362d96585e35b433981b3833a9e2737cec33774.tar.xz |
iio: pressure: driver for Honeywell HSC/SSC series
Adds driver for digital Honeywell TruStability HSC and SSC series
pressure and temperature sensors.
Communication is one way. The sensor only requires 4 bytes worth of
clock pulses on both i2c and spi in order to push the data out.
The i2c address is hardcoded and depends on the part number.
There is no additional GPIO control.
code is now based on iio/togreg
Datasheet:
https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-hsc-series/documents/sps-siot-trustability-hsc-series-high-accuracy-board-mount-pressure-sensors-50099148-a-en-ciid-151133.pdf [HSC]
Datasheet:
https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-ssc-series/documents/sps-siot-trustability-ssc-series-standard-accuracy-board-mount-pressure-sensors-50099533-a-en-ciid-151134.pdf [SSC]
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231207164634.11998-2-petre.rodan@subdimension.ro
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/pressure/hsc030pa_spi.c')
-rw-r--r-- | drivers/iio/pressure/hsc030pa_spi.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/iio/pressure/hsc030pa_spi.c b/drivers/iio/pressure/hsc030pa_spi.c new file mode 100644 index 000000000000..a719bade8326 --- /dev/null +++ b/drivers/iio/pressure/hsc030pa_spi.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Honeywell TruStability HSC Series pressure/temperature sensor + * + * Copyright (c) 2023 Petre Rodan <petre.rodan@subdimension.ro> + * + * Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/trustability-hsc-series/documents/sps-siot-trustability-hsc-series-high-accuracy-board-mount-pressure-sensors-50099148-a-en-ciid-151133.pdf + */ + +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/spi/spi.h> +#include <linux/stddef.h> + +#include <linux/iio/iio.h> + +#include "hsc030pa.h" + +static int hsc_spi_recv(struct hsc_data *data) +{ + struct spi_device *spi = to_spi_device(data->dev); + struct spi_transfer xfer = { + .tx_buf = NULL, + .rx_buf = data->buffer, + .len = HSC_REG_MEASUREMENT_RD_SIZE, + }; + + return spi_sync_transfer(spi, &xfer, 1); +} + +static int hsc_spi_probe(struct spi_device *spi) +{ + return hsc_common_probe(&spi->dev, hsc_spi_recv); +} + +static const struct of_device_id hsc_spi_match[] = { + { .compatible = "honeywell,hsc030pa" }, + {} +}; +MODULE_DEVICE_TABLE(of, hsc_spi_match); + +static const struct spi_device_id hsc_spi_id[] = { + { "hsc030pa" }, + {} +}; +MODULE_DEVICE_TABLE(spi, hsc_spi_id); + +static struct spi_driver hsc_spi_driver = { + .driver = { + .name = "hsc030pa", + .of_match_table = hsc_spi_match, + }, + .probe = hsc_spi_probe, + .id_table = hsc_spi_id, +}; +module_spi_driver(hsc_spi_driver); + +MODULE_AUTHOR("Petre Rodan <petre.rodan@subdimension.ro>"); +MODULE_DESCRIPTION("Honeywell HSC and SSC pressure sensor spi driver"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(IIO_HONEYWELL_HSC030PA); |