Add basic support for NXP FXLS8962AF/FXLS8964AF Automotive accelerometers. It will allow setting up scale/gain and reading x,y,z axis. Datasheet: https://www.nxp.com/docs/en/data-sheet/FXLS8962AF.pdf Datasheet: https://www.nxp.com/docs/en/data-sheet/FXLS8964AF.pdf Signed-off-by: Sean Nyekjaer <sean@xxxxxxxxxx> Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx> --- Changes for v2: - Addressed Kconfig comments - Using regmap_read_poll_timeout() - Addresed comments from Andy and Jonathan Changes for v3: - fixed Kconfig ordering - read INT_STATUS after reset, to ensure the device is ready - fixed a few xmas trees - added datasheet tags Changes for v4: - reworked read_raw -> fxls8962af_get_out, so we will skip the claim part. - Removed the drdy check, worstcase data will be 1,28s/0.781Hz old. drivers/iio/accel/Kconfig | 27 ++ drivers/iio/accel/Makefile | 3 + drivers/iio/accel/fxls8962af-core.c | 563 ++++++++++++++++++++++++++++ drivers/iio/accel/fxls8962af-i2c.c | 57 +++ drivers/iio/accel/fxls8962af-spi.c | 57 +++ drivers/iio/accel/fxls8962af.h | 22 ++ 6 files changed, 729 insertions(+) create mode 100644 drivers/iio/accel/fxls8962af-core.c create mode 100644 drivers/iio/accel/fxls8962af-i2c.c create mode 100644 drivers/iio/accel/fxls8962af-spi.c create mode 100644 drivers/iio/accel/fxls8962af.h diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig index 2e0c62c39155..7317d839ca1a 100644 --- a/drivers/iio/accel/Kconfig +++ b/drivers/iio/accel/Kconfig @@ -208,6 +208,33 @@ config DMARD10 Choosing M will build the driver as a module. If so, the module will be called dmard10. +config FXLS8962AF + tristate + +config FXLS8962AF_I2C + tristate "NXP FXLS8962AF/FXLS8964AF Accelerometer I2C Driver" + depends on I2C + select FXLS8962AF + select REGMAP_I2C + help + Say yes here to build support for the NXP 3-axis automotive + accelerometer FXLS8962AF/FXLS8964AF with I2C support. + + To compile this driver as a module, choose M here: the module + will be called fxls8962af_i2c. + +config FXLS8962AF_SPI + tristate "NXP FXLS8962AF/FXLS8964AF Accelerometer SPI Driver" + depends on SPI + select FXLS8962AF + select REGMAP_SPI + help + Say yes here to build support for the NXP 3-axis automotive + accelerometer FXLS8962AF/FXLS8964AF with SPI support. + + To compile this driver as a module, choose M here: the module + will be called fxls8962af_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 4f6c1ebe13b0..1b8c479c6f7c 100644 --- a/drivers/iio/accel/Makefile +++ b/drivers/iio/accel/Makefile @@ -25,6 +25,9 @@ obj-$(CONFIG_DA311) += da311.o obj-$(CONFIG_DMARD06) += dmard06.o obj-$(CONFIG_DMARD09) += dmard09.o obj-$(CONFIG_DMARD10) += dmard10.o +obj-$(CONFIG_FXLS8962AF) += fxls8962af-core.o +obj-$(CONFIG_FXLS8962AF_I2C) += fxls8962af-i2c.o +obj-$(CONFIG_FXLS8962AF_SPI) += fxls8962af-spi.o obj-$(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/fxls8962af-core.c b/drivers/iio/accel/fxls8962af-core.c new file mode 100644 index 000000000000..6ae47eac4490 --- /dev/null +++ b/drivers/iio/accel/fxls8962af-core.c @@ -0,0 +1,563 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * NXP FXLS8962AF/FXLS8964AF Accelerometer Core Driver + * + * Copyright 2021 Connected Cars A/S + * + * Datasheet: + * https://www.nxp.com/docs/en/data-sheet/FXLS8962AF.pdf + * https://www.nxp.com/docs/en/data-sheet/FXLS8964AF.pdf + * + * Errata: + * https://www.nxp.com/docs/en/errata/ES_FXLS8962AF.pdf + */ + +#include <linux/bits.h> +#include <linux/bitfield.h> +#include <linux/module.h> +#include <linux/pm_runtime.h> +#include <linux/regulator/consumer.h> +#include <linux/regmap.h> + +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> + +#include "fxls8962af.h" + +#define FXLS8962AF_INT_STATUS 0x00 +#define FXLS8962AF_INT_STATUS_SRC_BOOT BIT(0) +#define FXLS8962AF_INT_STATUS_SRC_DRDY BIT(7) +#define FXLS8962AF_TEMP_OUT 0x01 +#define FXLS8962AF_VECM_LSB 0x02 +#define FXLS8962AF_OUT_X_LSB 0x04 +#define FXLS8962AF_OUT_Y_LSB 0x06 +#define FXLS8962AF_OUT_Z_LSB 0x08 +#define FXLS8962AF_BUF_STATUS 0x0b +#define FXLS8962AF_BUF_X_LSB 0x0c +#define FXLS8962AF_BUF_Y_LSB 0x0e +#define FXLS8962AF_BUF_Z_LSB 0x10 + +#define FXLS8962AF_PROD_REV 0x12 +#define FXLS8962AF_WHO_AM_I 0x13 + +#define FXLS8962AF_SYS_MODE 0x14 +#define FXLS8962AF_SENS_CONFIG1 0x15 +#define FXLS8962AF_SENS_CONFIG1_ACTIVE BIT(0) +#define FXLS8962AF_SENS_CONFIG1_RST BIT(7) +#define FXLS8962AF_SC1_FSR_MASK GENMASK(2, 1) +#define FXLS8962AF_SC1_FSR_PREP(x) FIELD_PREP(FXLS8962AF_SC1_FSR_MASK, (x)) +#define FXLS8962AF_SC1_FSR_GET(x) FIELD_GET(FXLS8962AF_SC1_FSR_MASK, (x)) + +#define FXLS8962AF_SENS_CONFIG2 0x16 +#define FXLS8962AF_SENS_CONFIG3 0x17 +#define FXLS8962AF_SENS_CONFIG4 0x18 +#define FXLS8962AF_SENS_CONFIG5 0x19 + +#define FXLS8962AF_WAKE_IDLE_LSB 0x1b +#define FXLS8962AF_SLEEP_IDLE_LSB 0x1c +#define FXLS8962AF_ASLP_COUNT_LSB 0x1e + +#define FXLS8962AF_INT_EN 0x20 +#define FXLS8962AF_INT_PIN_SEL 0x21 + +#define FXLS8962AF_OFF_X 0x22 +#define FXLS8962AF_OFF_Y 0x23 +#define FXLS8962AF_OFF_Z 0x24 + +#define FXLS8962AF_BUF_CONFIG1 0x26 +#define FXLS8962AF_BUF_CONFIG2 0x27 + +#define FXLS8962AF_ORIENT_STATUS 0x28 +#define FXLS8962AF_ORIENT_CONFIG 0x29 +#define FXLS8962AF_ORIENT_DBCOUNT 0x2a +#define FXLS8962AF_ORIENT_BF_ZCOMP 0x2b +#define FXLS8962AF_ORIENT_THS_REG 0x2c + +#define FXLS8962AF_SDCD_INT_SRC1 0x2d +#define FXLS8962AF_SDCD_INT_SRC2 0x2e +#define FXLS8962AF_SDCD_CONFIG1 0x2f +#define FXLS8962AF_SDCD_CONFIG2 0x30 +#define FXLS8962AF_SDCD_OT_DBCNT 0x31 +#define FXLS8962AF_SDCD_WT_DBCNT 0x32 +#define FXLS8962AF_SDCD_LTHS_LSB 0x33 +#define FXLS8962AF_SDCD_UTHS_LSB 0x35 + +#define FXLS8962AF_SELF_TEST_CONFIG1 0x37 +#define FXLS8962AF_SELF_TEST_CONFIG2 0x38 + +#define FXLS8962AF_MAX_REG 0x38 + +#define FXLS8962AF_DEVICE_ID 0x62 +#define FXLS8964AF_DEVICE_ID 0x84 + +/* Raw temp channel offset */ +#define FXLS8962AF_TEMP_CENTER_VAL 25 + +#define FXLS8962AF_AUTO_SUSPEND_DELAY_MS 2000 + +#define FXLS8962AF_SCALE_TABLE_LEN 4 + +static const int fxls8962af_scale_table[FXLS8962AF_SCALE_TABLE_LEN][2] = { + {0, IIO_G_TO_M_S_2(980000)}, + {0, IIO_G_TO_M_S_2(1950000)}, + {0, IIO_G_TO_M_S_2(3910000)}, + {0, IIO_G_TO_M_S_2(7810000)}, +}; + +struct fxls8962af_chip_info { + const char *name; + const struct iio_chan_spec *channels; + int num_channels; + u8 chip_id; +}; + +struct fxls8962af_data { + struct regmap *regmap; + const struct fxls8962af_chip_info *chip_info; + struct regulator *vdd_reg; + struct iio_mount_matrix orientation; +}; + +const struct regmap_config fxls8962af_regmap_conf = { + .reg_bits = 8, + .val_bits = 8, + .max_register = FXLS8962AF_MAX_REG, +}; +EXPORT_SYMBOL_GPL(fxls8962af_regmap_conf); + +enum { + fxls8962af_idx_x, + fxls8962af_idx_y, + fxls8962af_idx_z, + fxls8962af_idx_ts, +}; + +static int fxls8962af_power_on(struct fxls8962af_data *data) +{ + struct device *dev = regmap_get_device(data->regmap); + int ret; + + ret = pm_runtime_resume_and_get(dev); + if (ret < 0) { + dev_err(dev, "failed to power on\n"); + } + + return ret; +} + +static int fxls8962af_power_off(struct fxls8962af_data *data) +{ + struct device *dev = regmap_get_device(data->regmap); + int ret; + + pm_runtime_mark_last_busy(dev); + ret = pm_runtime_put_autosuspend(dev); + + if (ret < 0) { + dev_err(dev, "failed to power off\n"); + } + + return ret; +} + +static int fxls8962af_standby(struct fxls8962af_data *data) +{ + return regmap_update_bits(data->regmap, FXLS8962AF_SENS_CONFIG1, + FXLS8962AF_SENS_CONFIG1_ACTIVE, 0); +} + +static int fxls8962af_active(struct fxls8962af_data *data) +{ + return regmap_update_bits(data->regmap, FXLS8962AF_SENS_CONFIG1, + FXLS8962AF_SENS_CONFIG1_ACTIVE, 1); +} + +static int fxls8962af_is_active(struct fxls8962af_data *data) +{ + unsigned int reg; + int ret; + + ret = regmap_read(data->regmap, FXLS8962AF_SENS_CONFIG1, ®); + if (ret < 0) + return ret; + + return reg & FXLS8962AF_SENS_CONFIG1_ACTIVE; +} + +static int fxls8962af_get_out(struct fxls8962af_data *data, + struct iio_chan_spec const *chan, int *val) +{ + struct device *dev = regmap_get_device(data->regmap); + __le16 raw_val; + int is_active; + int ret; + + is_active = fxls8962af_is_active(data); + if (!is_active) { + ret = fxls8962af_power_on(data); + if (ret) + return ret; + } + + ret = regmap_bulk_read(data->regmap, chan->address, + &raw_val, (chan->scan_type.storagebits / 8)); + + if (!is_active) { + fxls8962af_power_off(data); + } + + if (ret < 0) { + dev_err(dev, "failed to get out reg 0x%lx\n", chan->address); + return ret; + } + + *val = sign_extend32(le16_to_cpu(raw_val), + chan->scan_type.realbits - 1); + + return IIO_VAL_INT; +} + +static int fxls8962af_read_avail(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + const int **vals, int *type, int *length, + long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_SCALE: + *type = IIO_VAL_INT_PLUS_NANO; + *vals = (int *)fxls8962af_scale_table; + *length = ARRAY_SIZE(fxls8962af_scale_table) * 2; + return IIO_AVAIL_LIST; + default: + return -EINVAL; + } +} + +static int fxls8962af_write_raw_get_fmt(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + long mask) +{ + return IIO_VAL_INT_PLUS_NANO; +} + +static int fxls8962af_update_config(struct fxls8962af_data *data, u8 reg, + u8 mask, u8 val) +{ + int ret; + int is_active; + + is_active = fxls8962af_is_active(data); + if (is_active) { + ret = fxls8962af_standby(data); + if (ret < 0) + return ret; + } + + ret = regmap_update_bits(data->regmap, reg, mask, val); + if (ret < 0) + return ret; + + if (is_active) { + ret = fxls8962af_active(data); + if (ret < 0) + return ret; + } + + return 0; +} + +static int fxls8962af_set_full_scale(struct fxls8962af_data *data, u32 scale) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(fxls8962af_scale_table); i++) + if (scale == fxls8962af_scale_table[i][1]) + break; + + if (i == ARRAY_SIZE(fxls8962af_scale_table)) + return -EINVAL; + + return fxls8962af_update_config(data, FXLS8962AF_SENS_CONFIG1, + FXLS8962AF_SC1_FSR_MASK, + FXLS8962AF_SC1_FSR_PREP(i)); +} + +static unsigned int fxls8962af_read_full_scale(struct fxls8962af_data *data, + int *val) +{ + int ret; + unsigned int reg; + u8 range_idx; + + ret = regmap_read(data->regmap, FXLS8962AF_SENS_CONFIG1, ®); + if (ret < 0) + return ret; + + range_idx = FXLS8962AF_SC1_FSR_GET(reg); + + *val = fxls8962af_scale_table[range_idx][1]; + + return IIO_VAL_INT_PLUS_NANO; +} + +static int fxls8962af_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct fxls8962af_data *data = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + switch (chan->type) { + case IIO_TEMP: + case IIO_ACCEL: + return fxls8962af_get_out(data, chan, val); + default: + return -EINVAL; + } + case IIO_CHAN_INFO_OFFSET: + if (chan->type != IIO_TEMP) + return -EINVAL; + + *val = FXLS8962AF_TEMP_CENTER_VAL; + return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + *val = 0; + return fxls8962af_read_full_scale(data, val2); + default: + return -EINVAL; + } +} + +static int fxls8962af_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct fxls8962af_data *data = iio_priv(indio_dev); + int ret; + + switch (mask) { + case IIO_CHAN_INFO_SCALE: + if (val != 0) + return -EINVAL; + + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; + + ret = fxls8962af_set_full_scale(data, val2); + + iio_device_release_direct_mode(indio_dev); + return ret; + default: + return -EINVAL; + } +} + +#define FXLS8962AF_CHANNEL(axis, reg, idx) { \ + .type = IIO_ACCEL, \ + .address = reg, \ + .modified = 1, \ + .channel2 = IIO_MOD_##axis, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ + .info_mask_shared_by_type_available = BIT(IIO_CHAN_INFO_SCALE), \ + .scan_index = idx, \ + .scan_type = { \ + .sign = 's', \ + .realbits = 12, \ + .storagebits = 16, \ + .shift = 4, \ + .endianness = IIO_BE, \ + }, \ +} + +#define FXLS8962AF_TEMP_CHANNEL { \ + .type = IIO_TEMP, \ + .address = FXLS8962AF_TEMP_OUT, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ + BIT(IIO_CHAN_INFO_OFFSET),\ + .scan_index = -1, \ + .scan_type = { \ + .realbits = 8, \ + .storagebits = 8, \ + }, \ +} + +static const struct iio_chan_spec fxls8962af_channels[] = { + FXLS8962AF_CHANNEL(X, FXLS8962AF_OUT_X_LSB, fxls8962af_idx_x), + FXLS8962AF_CHANNEL(Y, FXLS8962AF_OUT_Y_LSB, fxls8962af_idx_y), + FXLS8962AF_CHANNEL(Z, FXLS8962AF_OUT_Z_LSB, fxls8962af_idx_z), + IIO_CHAN_SOFT_TIMESTAMP(fxls8962af_idx_ts), + FXLS8962AF_TEMP_CHANNEL, +}; + +static const struct fxls8962af_chip_info fxls_chip_info_table[] = { + [fxls8962af] = { + .chip_id = FXLS8962AF_DEVICE_ID, + .name = "fxls8962af", + .channels = fxls8962af_channels, + .num_channels = ARRAY_SIZE(fxls8962af_channels), + }, + [fxls8964af] = { + .chip_id = FXLS8964AF_DEVICE_ID, + .name = "fxls8964af", + .channels = fxls8962af_channels, + .num_channels = ARRAY_SIZE(fxls8962af_channels), + }, +}; + +static const struct iio_info fxls8962af_info = { + .read_raw = &fxls8962af_read_raw, + .write_raw = &fxls8962af_write_raw, + .write_raw_get_fmt = fxls8962af_write_raw_get_fmt, + .read_avail = fxls8962af_read_avail, +}; + +static int fxls8962af_reset(struct fxls8962af_data *data) +{ + struct device *dev = regmap_get_device(data->regmap); + unsigned int reg; + int ret; + + ret = regmap_update_bits(data->regmap, FXLS8962AF_SENS_CONFIG1, + FXLS8962AF_SENS_CONFIG1_RST, + FXLS8962AF_SENS_CONFIG1_RST); + if (ret < 0) + return ret; + + /* TBOOT1, TBOOT2, specifies we have to wait between 1 - 17.7ms */ + ret = regmap_read_poll_timeout(data->regmap, FXLS8962AF_INT_STATUS, reg, + (reg & FXLS8962AF_INT_STATUS_SRC_BOOT), 1000, 18000); + if (ret) + dev_err(dev, "reset timeout, int_status = 0x%x\n", reg); + + return ret; +} + +static void fxls8962af_regulator_disable(void *data_ptr) +{ + struct fxls8962af_data *data = data_ptr; + + regulator_disable(data->vdd_reg); +} + +static void fxls8962af_pm_disable(void *dev_ptr) +{ + struct device *dev = dev_ptr; + struct iio_dev *indio_dev = dev_get_drvdata(dev); + + pm_runtime_disable(dev); + pm_runtime_set_suspended(dev); + pm_runtime_put_noidle(dev); + + fxls8962af_standby(iio_priv(indio_dev)); +} + +int fxls8962af_core_probe(struct device *dev, struct regmap *regmap, int irq) +{ + struct fxls8962af_data *data; + struct iio_dev *indio_dev; + unsigned int reg; + int ret, i; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + dev_set_drvdata(dev, indio_dev); + data->regmap = regmap; + + ret = iio_read_mount_matrix(dev, "mount-matrix", &data->orientation); + if (ret) + return ret; + + data->vdd_reg = devm_regulator_get(dev, "vdd"); + if (IS_ERR(data->vdd_reg)) + return dev_err_probe(dev, PTR_ERR(data->vdd_reg), + "Failed to get vdd regulator\n"); + + ret = regulator_enable(data->vdd_reg); + if (ret) { + dev_err(dev, "Failed to enable vdd regulator: %d\n", ret); + return ret; + } + + ret = devm_add_action_or_reset(dev, fxls8962af_regulator_disable, data); + if (ret) + return ret; + + ret = regmap_read(data->regmap, FXLS8962AF_WHO_AM_I, ®); + if (ret < 0) + return ret; + + for (i = 0; i < ARRAY_SIZE(fxls_chip_info_table); i++) { + if (fxls_chip_info_table[i].chip_id == reg) { + data->chip_info = &fxls_chip_info_table[i]; + break; + } + } + if (i == ARRAY_SIZE(fxls_chip_info_table)) { + dev_err(dev, "failed to match device in table\n"); + return -ENXIO; + } + + indio_dev->channels = data->chip_info->channels; + indio_dev->num_channels = data->chip_info->num_channels; + indio_dev->name = data->chip_info->name; + indio_dev->info = &fxls8962af_info; + indio_dev->modes = INDIO_DIRECT_MODE; + + ret = fxls8962af_reset(data); + if (ret < 0) + return ret; + + ret = pm_runtime_set_active(dev); + if (ret < 0) + return ret; + + pm_runtime_enable(dev); + pm_runtime_set_autosuspend_delay(dev, FXLS8962AF_AUTO_SUSPEND_DELAY_MS); + pm_runtime_use_autosuspend(dev); + + ret = devm_add_action_or_reset(dev, fxls8962af_pm_disable, dev); + if (ret) + return ret; + + return devm_iio_device_register(dev, indio_dev); +} +EXPORT_SYMBOL_GPL(fxls8962af_core_probe); + +static int __maybe_unused fxls8962af_runtime_suspend(struct device *dev) +{ + struct fxls8962af_data *data = iio_priv(dev_get_drvdata(dev)); + int ret; + + ret = fxls8962af_standby(data); + if (ret < 0) { + dev_err(dev, "powering off device failed\n"); + return ret; + } + + return 0; +} + +static int __maybe_unused fxls8962af_runtime_resume(struct device *dev) +{ + struct fxls8962af_data *data = iio_priv(dev_get_drvdata(dev)); + + return fxls8962af_active(data); +} + +const struct dev_pm_ops fxls8962af_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) + SET_RUNTIME_PM_OPS(fxls8962af_runtime_suspend, + fxls8962af_runtime_resume, NULL) +}; +EXPORT_SYMBOL_GPL(fxls8962af_pm_ops); + +MODULE_AUTHOR("Sean Nyekjaer <sean@xxxxxxxxxx>"); +MODULE_DESCRIPTION("NXP FXLS8962AF/FXLS8964AF accelerometer driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/accel/fxls8962af-i2c.c b/drivers/iio/accel/fxls8962af-i2c.c new file mode 100644 index 000000000000..cba12160a714 --- /dev/null +++ b/drivers/iio/accel/fxls8962af-i2c.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * NXP FXLS8962AF/FXLS8964AF Accelerometer I2C Driver + * + * Copyright 2021 Connected Cars A/S + */ + +#include <linux/dev_printk.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/regmap.h> + +#include "fxls8962af.h" + +static int fxls8962af_probe(struct i2c_client *client) +{ + struct regmap *regmap; + + regmap = devm_regmap_init_i2c(client, &fxls8962af_regmap_conf); + if (IS_ERR(regmap)) { + dev_err(&client->dev, "Failed to initialize i2c regmap\n"); + return PTR_ERR(regmap); + } + + return fxls8962af_core_probe(&client->dev, regmap, client->irq); +} + +static const struct i2c_device_id fxls8962af_id[] = { + {"fxls8962af", fxls8962af}, + {"fxls8964af", fxls8964af}, + {} +}; +MODULE_DEVICE_TABLE(i2c, fxls8962af_id); + +static const struct of_device_id fxls8962af_of_match[] = { + {.compatible = "nxp,fxls8962af"}, + {.compatible = "nxp,fxls8964af"}, + {} +}; +MODULE_DEVICE_TABLE(of, fxls8962af_of_match); + +static struct i2c_driver fxls8962af_driver = { + .driver = { + .name = "fxls8962af_i2c", + .of_match_table = fxls8962af_of_match, + .pm = &fxls8962af_pm_ops, + }, + .probe_new = fxls8962af_probe, + .id_table = fxls8962af_id, +}; +module_i2c_driver(fxls8962af_driver); + +MODULE_AUTHOR("Sean Nyekjaer <sean@xxxxxxxxxx>"); +MODULE_DESCRIPTION("NXP FXLS8962AF/FXLS8964AF accelerometer i2c driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/accel/fxls8962af-spi.c b/drivers/iio/accel/fxls8962af-spi.c new file mode 100644 index 000000000000..cb971b76d135 --- /dev/null +++ b/drivers/iio/accel/fxls8962af-spi.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * NXP FXLS8962AF/FXLS8964AF Accelerometer SPI Driver + * + * Copyright 2021 Connected Cars A/S + */ + +#include <linux/dev_printk.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/spi/spi.h> +#include <linux/regmap.h> + +#include "fxls8962af.h" + +static int fxls8962af_probe(struct spi_device *spi) +{ + struct regmap *regmap; + + regmap = devm_regmap_init_spi(spi, &fxls8962af_regmap_conf); + if (IS_ERR(regmap)) { + dev_err(&spi->dev, "Failed to initialize spi regmap\n"); + return PTR_ERR(regmap); + } + + return fxls8962af_core_probe(&spi->dev, regmap, spi->irq); +} + +static const struct of_device_id fxls8962af_spi_of_match[] = { + {.compatible = "nxp,fxls8962af"}, + {.compatible = "nxp,fxls8964af"}, + {} +}; +MODULE_DEVICE_TABLE(of, fxls8962af_spi_of_match); + +static const struct spi_device_id fxls8962af_spi_id_table[] = { + {"fxls8962af", fxls8962af}, + {"fxls8964af", fxls8964af}, + {} +}; +MODULE_DEVICE_TABLE(spi, fxls8962af_spi_id_table); + +static struct spi_driver fxls8962af_driver = { + .driver = { + .name = "fxls8962af_spi", + .pm = &fxls8962af_pm_ops, + .of_match_table = fxls8962af_spi_of_match, + }, + .probe = fxls8962af_probe, + .id_table = fxls8962af_spi_id_table, +}; +module_spi_driver(fxls8962af_driver); + +MODULE_AUTHOR("Sean Nyekjaer <sean@xxxxxxxxxx>"); +MODULE_DESCRIPTION("NXP FXLS8962AF/FXLS8964AF accelerometer spi driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/accel/fxls8962af.h b/drivers/iio/accel/fxls8962af.h new file mode 100644 index 000000000000..b67572c3ef06 --- /dev/null +++ b/drivers/iio/accel/fxls8962af.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2021 Connected Cars A/S + */ +#ifndef _FXLS8962AF_H_ +#define _FXLS8962AF_H_ + +struct regmap; +struct device; + +enum { + fxls8962af, + fxls8964af, +}; + +int fxls8962af_core_probe(struct device *dev, struct regmap *regmap, int irq); +int fxls8962af_core_remove(struct device *dev); + +extern const struct dev_pm_ops fxls8962af_pm_ops; +extern const struct regmap_config fxls8962af_regmap_conf; + +#endif /* _FXLS8962AF_H_ */ -- 2.31.0
