.multi_read_bit = true,
.bootime = 2,
},
-
+ {
+ .wai = 0x49,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+ .sensors_supported = {
+ [0] = LSM9DS0_IMU_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_accel_16bit_channels,
+ .odr = {
+ .addr = 0x20,
+ .mask = GENMASK(7, 4),
+ .odr_avl = {
+ { 3, 0x01, },
+ { 6, 0x02, },
+ { 12, 0x03, },
+ { 25, 0x04, },
+ { 50, 0x05, },
+ { 100, 0x06, },
+ { 200, 0x07, },
+ { 400, 0x08, },
+ { 800, 0x09, },
+ { 1600, 0x0a, },
+ },
+ },
+ .pw = {
+ .addr = 0x20,
+ .mask = GENMASK(7, 4),
+ .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+ },
+ .enable_axis = {
+ .addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
+ .mask = ST_SENSORS_DEFAULT_AXIS_MASK,
+ },
+ .fs = {
+ .addr = 0x21,
+ .mask = GENMASK(5, 3),
+ .fs_avl = {
+ [0] = {
+ .num = ST_ACCEL_FS_AVL_2G,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(61),
+ },
+ [1] = {
+ .num = ST_ACCEL_FS_AVL_4G,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(122),
+ },
+ [2] = {
+ .num = ST_ACCEL_FS_AVL_6G,
+ .value = 0x02,
+ .gain = IIO_G_TO_M_S_2(183),
+ },
+ [3] = {
+ .num = ST_ACCEL_FS_AVL_8G,
+ .value = 0x03,
+ .gain = IIO_G_TO_M_S_2(244),
+ },
+ [4] = {
+ .num = ST_ACCEL_FS_AVL_16G,
+ .value = 0x04,
+ .gain = IIO_G_TO_M_S_2(732),
+ },
+ },
+ },
+ .bdu = {
+ .addr = 0x20,
+ .mask = BIT(3),
+ },
+ .drdy_irq = {
+ .int1 = {
+ .addr = 0x22,
+ .mask = BIT(2),
+ },
+ .int2 = {
+ .addr = 0x23,
+ .mask = BIT(3),
+ },
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = GENMASK(2, 0),
+ },
+ },
+ .sim = {
+ .addr = 0x21,
+ .value = BIT(0),
+ },
+ .multi_read_bit = true,
+ .bootime = 2,
+ },
};
/* Default accel DRDY is available on INT1 pin */
source "drivers/iio/imu/inv_icm42600/Kconfig"
source "drivers/iio/imu/inv_mpu6050/Kconfig"
source "drivers/iio/imu/st_lsm6dsx/Kconfig"
+source "drivers/iio/imu/st_lsm9ds0/Kconfig"
endmenu
obj-$(CONFIG_KMX61) += kmx61.o
obj-y += st_lsm6dsx/
+obj-y += st_lsm9ds0/
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-only
+
+config IIO_ST_LSM9DS0
+ tristate "STMicroelectronics LSM9DS0 IMU driver"
+ depends on (I2C || SPI_MASTER) && SYSFS
+ depends on !SENSORS_LIS3_I2C
+ depends on !SENSORS_LIS3_SPI
+ select IIO_ST_LSM9DS0_I2C if I2C
+ select IIO_ST_LSM9DS0_SPI if SPI_MASTER
+ select IIO_ST_ACCEL_3AXIS
+ select IIO_ST_MAGN_3AXIS
+
+ help
+ Say yes here to build support for STMicroelectronics LSM9DS0 IMU
+ sensor. Supported devices: accelerometer/magnetometer of lsm9ds0.
+
+ To compile this driver as a module, choose M here: the module
+ will be called st_lsm9ds0.
+
+config IIO_ST_LSM9DS0_I2C
+ tristate
+ depends on IIO_ST_LSM9DS0
+ select REGMAP_I2C
+
+config IIO_ST_LSM9DS0_SPI
+ tristate
+ depends on IIO_ST_LSM9DS0
+ select REGMAP_SPI
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_IIO_ST_LSM9DS0) += st_lsm9ds0.o
+st_lsm9ds0-y := st_lsm9ds0_core.o
+obj-$(CONFIG_IIO_ST_LSM9DS0_I2C) += st_lsm9ds0_i2c.o
+obj-$(CONFIG_IIO_ST_LSM9DS0_SPI) += st_lsm9ds0_spi.o
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+// STMicroelectronics LSM9DS0 IMU driver
+
+#ifndef ST_LSM9DS0_H
+#define ST_LSM9DS0_H
+
+struct iio_dev;
+struct regulator;
+
+struct st_lsm9ds0 {
+ struct device *dev;
+ const char *name;
+ int irq;
+ struct iio_dev *accel;
+ struct iio_dev *magn;
+ struct regulator *vdd;
+ struct regulator *vdd_io;
+};
+
+int st_lsm9ds0_probe(struct st_lsm9ds0 *lsm9ds0, struct regmap *regmap);
+int st_lsm9ds0_remove(struct st_lsm9ds0 *lsm9ds0);
+
+#endif /* ST_LSM9DS0_H */
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * STMicroelectronics LSM9DS0 IMU driver
+ *
+ * Copyright (C) 2021, Intel Corporation
+ *
+ * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+ */
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/regulator/consumer.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include <linux/iio/iio.h>
+
+#include "st_lsm9ds0.h"
+
+static int st_lsm9ds0_power_enable(struct device *dev, struct st_lsm9ds0 *lsm9ds0)
+{
+ int ret;
+
+ /* Regulators not mandatory, but if requested we should enable them. */
+ lsm9ds0->vdd = devm_regulator_get(dev, "vdd");
+ if (IS_ERR(lsm9ds0->vdd)) {
+ dev_err(dev, "unable to get Vdd supply\n");
+ return PTR_ERR(lsm9ds0->vdd);
+ }
+ ret = regulator_enable(lsm9ds0->vdd);
+ if (ret) {
+ dev_warn(dev, "Failed to enable specified Vdd supply\n");
+ return ret;
+ }
+
+ lsm9ds0->vdd_io = devm_regulator_get(dev, "vddio");
+ if (IS_ERR(lsm9ds0->vdd_io)) {
+ dev_err(dev, "unable to get Vdd_IO supply\n");
+ regulator_disable(lsm9ds0->vdd);
+ return PTR_ERR(lsm9ds0->vdd_io);
+ }
+ ret = regulator_enable(lsm9ds0->vdd_io);
+ if (ret) {
+ dev_warn(dev, "Failed to enable specified Vdd_IO supply\n");
+ regulator_disable(lsm9ds0->vdd);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void st_lsm9ds0_power_disable(void *data)
+{
+ struct st_lsm9ds0 *lsm9ds0 = data;
+
+ regulator_disable(lsm9ds0->vdd_io);
+ regulator_disable(lsm9ds0->vdd);
+}
+
+static int devm_st_lsm9ds0_power_enable(struct st_lsm9ds0 *lsm9ds0)
+{
+ struct device *dev = lsm9ds0->dev;
+ int ret;
+
+ ret = st_lsm9ds0_power_enable(dev, lsm9ds0);
+ if (ret)
+ return ret;
+
+ return devm_add_action_or_reset(dev, st_lsm9ds0_power_disable, lsm9ds0);
+}
+
+static int st_lsm9ds0_probe_accel(struct st_lsm9ds0 *lsm9ds0, struct regmap *regmap)
+{
+ const struct st_sensor_settings *settings;
+ struct device *dev = lsm9ds0->dev;
+ struct st_sensor_data *data;
+
+ settings = st_accel_get_settings(lsm9ds0->name);
+ if (!settings) {
+ dev_err(dev, "device name %s not recognized.\n", lsm9ds0->name);
+ return -ENODEV;
+ }
+
+ lsm9ds0->accel = devm_iio_device_alloc(dev, sizeof(*data));
+ if (!lsm9ds0->accel)
+ return -ENOMEM;
+
+ lsm9ds0->accel->name = lsm9ds0->name;
+
+ data = iio_priv(lsm9ds0->accel);
+ data->sensor_settings = (struct st_sensor_settings *)settings;
+ data->dev = dev;
+ data->irq = lsm9ds0->irq;
+ data->regmap = regmap;
+ data->vdd = lsm9ds0->vdd;
+ data->vdd_io = lsm9ds0->vdd_io;
+
+ return st_accel_common_probe(lsm9ds0->accel);
+}
+
+static int st_lsm9ds0_probe_magn(struct st_lsm9ds0 *lsm9ds0, struct regmap *regmap)
+{
+ const struct st_sensor_settings *settings;
+ struct device *dev = lsm9ds0->dev;
+ struct st_sensor_data *data;
+
+ settings = st_magn_get_settings(lsm9ds0->name);
+ if (!settings) {
+ dev_err(dev, "device name %s not recognized.\n", lsm9ds0->name);
+ return -ENODEV;
+ }
+
+ lsm9ds0->magn = devm_iio_device_alloc(dev, sizeof(*data));
+ if (!lsm9ds0->magn)
+ return -ENOMEM;
+
+ lsm9ds0->magn->name = lsm9ds0->name;
+
+ data = iio_priv(lsm9ds0->magn);
+ data->sensor_settings = (struct st_sensor_settings *)settings;
+ data->dev = dev;
+ data->irq = lsm9ds0->irq;
+ data->regmap = regmap;
+ data->vdd = lsm9ds0->vdd;
+ data->vdd_io = lsm9ds0->vdd_io;
+
+ return st_magn_common_probe(lsm9ds0->magn);
+}
+
+int st_lsm9ds0_probe(struct st_lsm9ds0 *lsm9ds0, struct regmap *regmap)
+{
+ int ret;
+
+ ret = devm_st_lsm9ds0_power_enable(lsm9ds0);
+ if (ret)
+ return ret;
+
+ /* Setup accelerometer device */
+ ret = st_lsm9ds0_probe_accel(lsm9ds0, regmap);
+ if (ret)
+ return ret;
+
+ /* Setup magnetometer device */
+ ret = st_lsm9ds0_probe_magn(lsm9ds0, regmap);
+ if (ret)
+ st_accel_common_remove(lsm9ds0->accel);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(st_lsm9ds0_probe);
+
+int st_lsm9ds0_remove(struct st_lsm9ds0 *lsm9ds0)
+{
+ st_magn_common_remove(lsm9ds0->magn);
+ st_accel_common_remove(lsm9ds0->accel);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(st_lsm9ds0_remove);
+
+MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
+MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU core driver");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * STMicroelectronics LSM9DS0 IMU driver
+ *
+ * Copyright (C) 2021, Intel Corporation
+ *
+ * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+ */
+
+#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include <linux/iio/common/st_sensors_i2c.h>
+
+#include "st_lsm9ds0.h"
+
+static const struct of_device_id st_lsm9ds0_of_match[] = {
+ {
+ .compatible = "st,lsm9ds0-imu",
+ .data = LSM9DS0_IMU_DEV_NAME,
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, st_lsm9ds0_of_match);
+
+static const struct i2c_device_id st_lsm9ds0_id_table[] = {
+ { LSM9DS0_IMU_DEV_NAME },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, st_lsm9ds0_id_table);
+
+static const struct regmap_config st_lsm9ds0_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .read_flag_mask = 0x80,
+};
+
+static int st_lsm9ds0_i2c_probe(struct i2c_client *client)
+{
+ const struct regmap_config *config = &st_lsm9ds0_regmap_config;
+ struct device *dev = &client->dev;
+ struct st_lsm9ds0 *lsm9ds0;
+ struct regmap *regmap;
+
+ st_sensors_dev_name_probe(dev, client->name, sizeof(client->name));
+
+ lsm9ds0 = devm_kzalloc(dev, sizeof(*lsm9ds0), GFP_KERNEL);
+ if (!lsm9ds0)
+ return -ENOMEM;
+
+ lsm9ds0->dev = dev;
+ lsm9ds0->name = client->name;
+ lsm9ds0->irq = client->irq;
+
+ regmap = devm_regmap_init_i2c(client, config);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ i2c_set_clientdata(client, lsm9ds0);
+
+ return st_lsm9ds0_probe(lsm9ds0, regmap);
+}
+
+static int st_lsm9ds0_i2c_remove(struct i2c_client *client)
+{
+ return st_lsm9ds0_remove(i2c_get_clientdata(client));
+}
+
+static struct i2c_driver st_lsm9ds0_driver = {
+ .driver = {
+ .name = "st-lsm9ds0-i2c",
+ .of_match_table = st_lsm9ds0_of_match,
+ },
+ .probe_new = st_lsm9ds0_i2c_probe,
+ .remove = st_lsm9ds0_i2c_remove,
+ .id_table = st_lsm9ds0_id_table,
+};
+module_i2c_driver(st_lsm9ds0_driver);
+
+MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
+MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU I2C driver");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * STMicroelectronics LSM9DS0 IMU driver
+ *
+ * Copyright (C) 2021, Intel Corporation
+ *
+ * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+
+#include <linux/iio/common/st_sensors_spi.h>
+
+#include "st_lsm9ds0.h"
+
+static const struct of_device_id st_lsm9ds0_of_match[] = {
+ {
+ .compatible = "st,lsm9ds0-imu",
+ .data = LSM9DS0_IMU_DEV_NAME,
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, st_lsm9ds0_of_match);
+
+static const struct spi_device_id st_lsm9ds0_id_table[] = {
+ { LSM9DS0_IMU_DEV_NAME },
+ {}
+};
+MODULE_DEVICE_TABLE(spi, st_lsm9ds0_id_table);
+
+static const struct regmap_config st_lsm9ds0_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .read_flag_mask = 0xc0,
+};
+
+static int st_lsm9ds0_spi_probe(struct spi_device *spi)
+{
+ struct device *dev = &spi->dev;
+ struct st_lsm9ds0 *lsm9ds0;
+ struct regmap *regmap;
+
+ st_sensors_dev_name_probe(dev, spi->modalias, sizeof(spi->modalias));
+
+ lsm9ds0 = devm_kzalloc(dev, sizeof(*lsm9ds0), GFP_KERNEL);
+ if (!lsm9ds0)
+ return -ENOMEM;
+
+ lsm9ds0->dev = dev;
+ lsm9ds0->name = spi->modalias;
+ lsm9ds0->irq = spi->irq;
+
+ regmap = devm_regmap_init_spi(spi, &st_lsm9ds0_regmap_config);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ spi_set_drvdata(spi, lsm9ds0);
+
+ return st_lsm9ds0_probe(lsm9ds0, regmap);
+}
+
+static int st_lsm9ds0_spi_remove(struct spi_device *spi)
+{
+ return st_lsm9ds0_remove(spi_get_drvdata(spi));
+}
+
+static struct spi_driver st_lsm9ds0_driver = {
+ .driver = {
+ .name = "st-lsm9ds0-spi",
+ .of_match_table = st_lsm9ds0_of_match,
+ },
+ .probe = st_lsm9ds0_spi_probe,
+ .remove = st_lsm9ds0_spi_remove,
+ .id_table = st_lsm9ds0_id_table,
+};
+module_spi_driver(st_lsm9ds0_driver);
+
+MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
+MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU SPI driver");
+MODULE_LICENSE("GPL v2");
/* FULLSCALE */
#define ST_MAGN_FS_AVL_1300MG 1300
#define ST_MAGN_FS_AVL_1900MG 1900
+#define ST_MAGN_FS_AVL_2000MG 2000
#define ST_MAGN_FS_AVL_2500MG 2500
#define ST_MAGN_FS_AVL_4000MG 4000
#define ST_MAGN_FS_AVL_4700MG 4700
#define ST_MAGN_3_OUT_Y_L_ADDR 0x6a
#define ST_MAGN_3_OUT_Z_L_ADDR 0x6c
+/* Special L addresses for sensor 4 */
+#define ST_MAGN_4_OUT_X_L_ADDR 0x08
+#define ST_MAGN_4_OUT_Y_L_ADDR 0x0a
+#define ST_MAGN_4_OUT_Z_L_ADDR 0x0c
+
static const struct iio_chan_spec st_magn_16bit_channels[] = {
ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
+static const struct iio_chan_spec st_magn_4_16bit_channels[] = {
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
+ ST_MAGN_4_OUT_X_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
+ ST_MAGN_4_OUT_Y_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
+ ST_MAGN_4_OUT_Z_L_ADDR),
+ IIO_CHAN_SOFT_TIMESTAMP(3)
+};
+
static const struct st_sensor_settings st_magn_sensors_settings[] = {
{
.wai = 0, /* This sensor has no valid WhoAmI report 0 */
.multi_read_bit = false,
.bootime = 2,
},
+ {
+ .wai = 0x49,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+ .sensors_supported = {
+ [0] = LSM9DS0_IMU_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_magn_4_16bit_channels,
+ .odr = {
+ .addr = 0x24,
+ .mask = GENMASK(4, 2),
+ .odr_avl = {
+ { 3, 0x00, },
+ { 6, 0x01, },
+ { 12, 0x02, },
+ { 25, 0x03, },
+ { 50, 0x04, },
+ { 100, 0x05, },
+ },
+ },
+ .pw = {
+ .addr = 0x26,
+ .mask = GENMASK(1, 0),
+ .value_on = 0x00,
+ .value_off = 0x03,
+ },
+ .fs = {
+ .addr = 0x25,
+ .mask = GENMASK(6, 5),
+ .fs_avl = {
+ [0] = {
+ .num = ST_MAGN_FS_AVL_2000MG,
+ .value = 0x00,
+ .gain = 73,
+ },
+ [1] = {
+ .num = ST_MAGN_FS_AVL_4000MG,
+ .value = 0x01,
+ .gain = 146,
+ },
+ [2] = {
+ .num = ST_MAGN_FS_AVL_8000MG,
+ .value = 0x02,
+ .gain = 292,
+ },
+ [3] = {
+ .num = ST_MAGN_FS_AVL_12000MG,
+ .value = 0x03,
+ .gain = 438,
+ },
+ },
+ },
+ .bdu = {
+ .addr = 0x20,
+ .mask = BIT(3),
+ },
+ .drdy_irq = {
+ .int1 = {
+ .addr = 0x22,
+ .mask = BIT(1),
+ },
+ .int2 = {
+ .addr = 0x23,
+ .mask = BIT(2),
+ },
+ .stat_drdy = {
+ .addr = 0x07,
+ .mask = GENMASK(2, 0),
+ },
+ },
+ .sim = {
+ .addr = 0x21,
+ .value = BIT(0),
+ },
+ .multi_read_bit = true,
+ .bootime = 2,
+ },
};
/* Default magn DRDY is available on INT2 pin */
#include <linux/platform_data/st_sensors_pdata.h>
+#define LSM9DS0_IMU_DEV_NAME "lsm9ds0"
+
/*
* Buffer size max case: 2bytes per channel, 3 channels in total +
* 8bytes timestamp channel (s64)
projects / platform / kernel / linux-starfive.git / commitdiff