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author | Puranjay Mohan <puranjay12@gmail.com> | 2021-08-11 10:30:27 +0300 |
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committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-09-14 14:00:30 +0300 |
commit | 12ed27863ea3148239ec368e16c1a0f937e4d9bd (patch) | |
tree | cae792ee4d4a0272844a0f45f7af6a7f7376214b /drivers/iio/accel/adxl355_spi.c | |
parent | bf43a71a0a7f396434f6460b46e33eb00752f78d (diff) | |
download | linux-12ed27863ea3148239ec368e16c1a0f937e4d9bd.tar.xz |
iio: accel: Add driver support for ADXL355
ADXL355 is a 3-axis MEMS Accelerometer. It offers low noise density,
low 0g offset drift, low power with selectable measurement ranges.
It also features programmable high-pass and low-pass filters.
Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/adxl354_adxl355.pdf
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Link: https://lore.kernel.org/r/20210811073027.124619-3-puranjay12@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/accel/adxl355_spi.c')
-rw-r--r-- | drivers/iio/accel/adxl355_spi.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/iio/accel/adxl355_spi.c b/drivers/iio/accel/adxl355_spi.c new file mode 100644 index 000000000000..fb225aeb56e3 --- /dev/null +++ b/drivers/iio/accel/adxl355_spi.c @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ADXL355 3-Axis Digital Accelerometer SPI driver + * + * Copyright (c) 2021 Puranjay Mohan <puranjay12@gmail.com> + */ + +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/regmap.h> +#include <linux/spi/spi.h> + +#include "adxl355.h" + +static const struct regmap_config adxl355_spi_regmap_config = { + .reg_bits = 7, + .pad_bits = 1, + .val_bits = 8, + .read_flag_mask = BIT(0), + .max_register = 0x2F, + .rd_table = &adxl355_readable_regs_tbl, + .wr_table = &adxl355_writeable_regs_tbl, +}; + +static int adxl355_spi_probe(struct spi_device *spi) +{ + const struct spi_device_id *id = spi_get_device_id(spi); + struct regmap *regmap; + + regmap = devm_regmap_init_spi(spi, &adxl355_spi_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&spi->dev, "Error initializing spi regmap: %ld\n", + PTR_ERR(regmap)); + + return PTR_ERR(regmap); + } + + return adxl355_core_probe(&spi->dev, regmap, id->name); +} + +static const struct spi_device_id adxl355_spi_id[] = { + { "adxl355", 0 }, + { } +}; +MODULE_DEVICE_TABLE(spi, adxl355_spi_id); + +static const struct of_device_id adxl355_of_match[] = { + { .compatible = "adi,adxl355" }, + { } +}; +MODULE_DEVICE_TABLE(of, adxl355_of_match); + +static struct spi_driver adxl355_spi_driver = { + .driver = { + .name = "adxl355_spi", + .of_match_table = adxl355_of_match, + }, + .probe = adxl355_spi_probe, + .id_table = adxl355_spi_id, +}; +module_spi_driver(adxl355_spi_driver); + +MODULE_AUTHOR("Puranjay Mohan <puranjay12@gmail.com>"); +MODULE_DESCRIPTION("ADXL355 3-Axis Digital Accelerometer SPI driver"); +MODULE_LICENSE("GPL v2"); |