diff options
| author | Rui Miguel Silva <rui.silva@linaro.org> | 2017-09-20 22:22:08 +0100 |
|---|---|---|
| committer | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2019-05-01 11:51:18 +0100 |
| commit | 35281ecdf5e55fd44482916fba008a8610289fcf (patch) | |
| tree | 2cdfe5c0a2b103a46fd370d3f291b392bf77f4b5 | |
| parent | 697b1ab55e6b0ae4f629b088e7cb9f7b9b16c0ea (diff) | |
iio: accel: fxos8700: add spi driver
Add driver to communicate over spi to fxos8700 accel/magnetometer combo device
and use fxos8700_core for main tasks.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
| -rw-r--r-- | drivers/iio/accel/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/iio/accel/Makefile | 1 | ||||
| -rw-r--r-- | drivers/iio/accel/fxos8700_spi.c | 71 |
3 files changed, 77 insertions, 0 deletions
diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig index 1c7e74e69617..1aeca12181d5 100644 --- a/drivers/iio/accel/Kconfig +++ b/drivers/iio/accel/Kconfig @@ -139,6 +139,7 @@ config FXOS8700_ACCEL_MAGN select IIO_BUFFER select REGMAP select FXOS8700_ACCEL_MAGN_I2C if I2C + select FXOS8700_ACCEL_MAGN_SPI if SPI help Say yes here to build support for the FXOS8700 accelerometer / magnetometer. @@ -149,6 +150,10 @@ config FXOS8700_ACCEL_MAGN_I2C tristate select REGMAP_I2C +config FXOS8700_ACCEL_MAGN_SPI + tristate + select REGMAP_SPI + config HID_SENSOR_ACCEL_3D depends on HID_SENSOR_HUB select IIO_BUFFER diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile index 1ffb24cf8267..f9f0c7356e99 100644 --- a/drivers/iio/accel/Makefile +++ b/drivers/iio/accel/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_DMARD09) += dmard09.o obj-$(CONFIG_DMARD10) += dmard10.o obj-$(CONFIG_FXOS8700_ACCEL_MAGN) += fxos8700_core.o obj-$(CONFIG_FXOS8700_ACCEL_MAGN_I2C) += fxos8700_i2c.o +obj-$(CONFIG_FXOS8700_ACCEL_MAGN_SPI) += fxos8700_spi.o obj-$(CONFIG_HID_SENSOR_ACCEL_3D) += hid-sensor-accel-3d.o obj-$(CONFIG_KXCJK1013) += kxcjk-1013.o obj-$(CONFIG_KXSD9) += kxsd9.o diff --git a/drivers/iio/accel/fxos8700_spi.c b/drivers/iio/accel/fxos8700_spi.c new file mode 100644 index 000000000000..234726a96410 --- /dev/null +++ b/drivers/iio/accel/fxos8700_spi.c @@ -0,0 +1,71 @@ +/* + * Driver for NXP Fxos8700 Accelerometer and Magnetometer - SPI + * + * Copyright (C) 2017 Linaro Ltd. + * + */ + +#include <linux/module.h> +#include <linux/of.h> +#include <linux/regmap.h> +#include <linux/spi/spi.h> + +#include "fxos8700.h" + +static const struct regmap_config fxos8700_regmap_spi_conf = { + .reg_bits = 8, + .val_bits = 8, + .max_register = FXOS8700_REG_NVM_DATA_BNK0, +}; + +static int fxos8700_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, &fxos8700_regmap_spi_conf); + if (IS_ERR(regmap)) { + dev_err(&spi->dev, "Failed to register spi regmap: %ld\n", + PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + return fxos8700_core_probe(&spi->dev, regmap, id->name); +} + +static int fxos8700_spi_remove(struct spi_device *spi) +{ + fxos8700_core_remove(&spi->dev); + + return 0; +} + +static const struct spi_device_id fxos8700_spi_id[] = { + { "fxos8700", 0 }, + { } +}; +MODULE_DEVICE_TABLE(spi, fxos8700_spi_id); + +#ifdef CONFIG_OF +static const struct of_device_id fxos8700_spi_of_match[] = { + { .compatible = "nxp,fxos8700", }, + { }, +}; +MODULE_DEVICE_TABLE(of, fxos8700_spi_of_match); +#endif + +static struct spi_driver fxos8700_spi_driver = { + .driver = { + .name = "fxos8700_spi", + .pm = &fxos8700_pm_ops, + .of_match_table = of_match_ptr(fxos8700_spi_of_match), + }, + .probe = fxos8700_spi_probe, + .remove = fxos8700_spi_remove, + .id_table = fxos8700_spi_id, +}; +module_spi_driver(fxos8700_spi_driver); + +MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("FXOS8700 SPI Accel and Magnet driver"); |