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path: root/drivers/iio/magnetometer/st_magn_core.c
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-rw-r--r--drivers/iio/magnetometer/st_magn_core.c654
1 files changed, 654 insertions, 0 deletions
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
new file mode 100644
index 000000000..e2fd233b3
--- /dev/null
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -0,0 +1,654 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * STMicroelectronics magnetometers driver
+ *
+ * Copyright 2012-2013 STMicroelectronics Inc.
+ *
+ * Denis Ciocca <denis.ciocca@st.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger.h>
+
+#include <linux/iio/common/st_sensors.h>
+#include "st_magn.h"
+
+#define ST_MAGN_NUMBER_DATA_CHANNELS 3
+
+/* DEFAULT VALUE FOR SENSORS */
+#define ST_MAGN_DEFAULT_OUT_X_H_ADDR 0x03
+#define ST_MAGN_DEFAULT_OUT_Y_H_ADDR 0x07
+#define ST_MAGN_DEFAULT_OUT_Z_H_ADDR 0x05
+
+/* 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_FS_AVL_5600MG 5600
+#define ST_MAGN_FS_AVL_8000MG 8000
+#define ST_MAGN_FS_AVL_8100MG 8100
+#define ST_MAGN_FS_AVL_12000MG 12000
+#define ST_MAGN_FS_AVL_15000MG 15000
+#define ST_MAGN_FS_AVL_16000MG 16000
+
+/* Special L addresses for Sensor 2 */
+#define ST_MAGN_2_OUT_X_L_ADDR 0x28
+#define ST_MAGN_2_OUT_Y_L_ADDR 0x2a
+#define ST_MAGN_2_OUT_Z_L_ADDR 0x2c
+
+/* Special L addresses for sensor 3 */
+#define ST_MAGN_3_OUT_X_L_ADDR 0x68
+#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_mount_matrix *
+st_magn_get_mount_matrix(const struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan)
+{
+ struct st_sensor_data *mdata = iio_priv(indio_dev);
+
+ return &mdata->mount_matrix;
+}
+
+static const struct iio_chan_spec_ext_info st_magn_mount_matrix_ext_info[] = {
+ IIO_MOUNT_MATRIX(IIO_SHARED_BY_ALL, st_magn_get_mount_matrix),
+ { }
+};
+
+static const struct iio_chan_spec st_magn_16bit_channels[] = {
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_BE, 16, 16,
+ ST_MAGN_DEFAULT_OUT_X_H_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_BE, 16, 16,
+ ST_MAGN_DEFAULT_OUT_Y_H_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_BE, 16, 16,
+ ST_MAGN_DEFAULT_OUT_Z_H_ADDR,
+ st_magn_mount_matrix_ext_info),
+ IIO_CHAN_SOFT_TIMESTAMP(3)
+};
+
+static const struct iio_chan_spec st_magn_2_16bit_channels[] = {
+ ST_SENSORS_LSM_CHANNELS_EXT(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_2_OUT_X_L_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(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_2_OUT_Y_L_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(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_2_OUT_Z_L_ADDR,
+ st_magn_mount_matrix_ext_info),
+ IIO_CHAN_SOFT_TIMESTAMP(3)
+};
+
+static const struct iio_chan_spec st_magn_3_16bit_channels[] = {
+ ST_SENSORS_LSM_CHANNELS_EXT(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_3_OUT_X_L_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(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_3_OUT_Y_L_ADDR,
+ st_magn_mount_matrix_ext_info),
+ ST_SENSORS_LSM_CHANNELS_EXT(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_3_OUT_Z_L_ADDR,
+ st_magn_mount_matrix_ext_info),
+ 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 */
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+ .sensors_supported = {
+ [0] = LSM303DLH_MAGN_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_magn_16bit_channels,
+ .odr = {
+ .addr = 0x00,
+ .mask = 0x1c,
+ .odr_avl = {
+ { .hz = 1, .value = 0x00 },
+ { .hz = 2, .value = 0x01 },
+ { .hz = 3, .value = 0x02 },
+ { .hz = 8, .value = 0x03 },
+ { .hz = 15, .value = 0x04 },
+ { .hz = 30, .value = 0x05 },
+ { .hz = 75, .value = 0x06 },
+ /* 220 Hz, 0x07 reportedly exist */
+ },
+ },
+ .pw = {
+ .addr = 0x02,
+ .mask = 0x03,
+ .value_on = 0x00,
+ .value_off = 0x03,
+ },
+ .fs = {
+ .addr = 0x01,
+ .mask = 0xe0,
+ .fs_avl = {
+ [0] = {
+ .num = ST_MAGN_FS_AVL_1300MG,
+ .value = 0x01,
+ .gain = 1100,
+ .gain2 = 980,
+ },
+ [1] = {
+ .num = ST_MAGN_FS_AVL_1900MG,
+ .value = 0x02,
+ .gain = 855,
+ .gain2 = 760,
+ },
+ [2] = {
+ .num = ST_MAGN_FS_AVL_2500MG,
+ .value = 0x03,
+ .gain = 670,
+ .gain2 = 600,
+ },
+ [3] = {
+ .num = ST_MAGN_FS_AVL_4000MG,
+ .value = 0x04,
+ .gain = 450,
+ .gain2 = 400,
+ },
+ [4] = {
+ .num = ST_MAGN_FS_AVL_4700MG,
+ .value = 0x05,
+ .gain = 400,
+ .gain2 = 355,
+ },
+ [5] = {
+ .num = ST_MAGN_FS_AVL_5600MG,
+ .value = 0x06,
+ .gain = 330,
+ .gain2 = 295,
+ },
+ [6] = {
+ .num = ST_MAGN_FS_AVL_8100MG,
+ .value = 0x07,
+ .gain = 230,
+ .gain2 = 205,
+ },
+ },
+ },
+ .multi_read_bit = false,
+ .bootime = 2,
+ },
+ {
+ .wai = 0x3c,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+ .sensors_supported = {
+ [0] = LSM303DLHC_MAGN_DEV_NAME,
+ [1] = LSM303DLM_MAGN_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_magn_16bit_channels,
+ .odr = {
+ .addr = 0x00,
+ .mask = 0x1c,
+ .odr_avl = {
+ { .hz = 1, .value = 0x00 },
+ { .hz = 2, .value = 0x01 },
+ { .hz = 3, .value = 0x02 },
+ { .hz = 8, .value = 0x03 },
+ { .hz = 15, .value = 0x04 },
+ { .hz = 30, .value = 0x05 },
+ { .hz = 75, .value = 0x06 },
+ { .hz = 220, .value = 0x07 },
+ },
+ },
+ .pw = {
+ .addr = 0x02,
+ .mask = 0x03,
+ .value_on = 0x00,
+ .value_off = 0x03,
+ },
+ .fs = {
+ .addr = 0x01,
+ .mask = 0xe0,
+ .fs_avl = {
+ [0] = {
+ .num = ST_MAGN_FS_AVL_1300MG,
+ .value = 0x01,
+ .gain = 909,
+ .gain2 = 1020,
+ },
+ [1] = {
+ .num = ST_MAGN_FS_AVL_1900MG,
+ .value = 0x02,
+ .gain = 1169,
+ .gain2 = 1315,
+ },
+ [2] = {
+ .num = ST_MAGN_FS_AVL_2500MG,
+ .value = 0x03,
+ .gain = 1492,
+ .gain2 = 1666,
+ },
+ [3] = {
+ .num = ST_MAGN_FS_AVL_4000MG,
+ .value = 0x04,
+ .gain = 2222,
+ .gain2 = 2500,
+ },
+ [4] = {
+ .num = ST_MAGN_FS_AVL_4700MG,
+ .value = 0x05,
+ .gain = 2500,
+ .gain2 = 2816,
+ },
+ [5] = {
+ .num = ST_MAGN_FS_AVL_5600MG,
+ .value = 0x06,
+ .gain = 3030,
+ .gain2 = 3389,
+ },
+ [6] = {
+ .num = ST_MAGN_FS_AVL_8100MG,
+ .value = 0x07,
+ .gain = 4347,
+ .gain2 = 4878,
+ },
+ },
+ },
+ .multi_read_bit = false,
+ .bootime = 2,
+ },
+ {
+ .wai = 0x3d,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+ .sensors_supported = {
+ [0] = LIS3MDL_MAGN_DEV_NAME,
+ [1] = LSM9DS1_MAGN_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_magn_2_16bit_channels,
+ .odr = {
+ .addr = 0x20,
+ .mask = 0x1c,
+ .odr_avl = {
+ { .hz = 1, .value = 0x00 },
+ { .hz = 2, .value = 0x01 },
+ { .hz = 3, .value = 0x02 },
+ { .hz = 5, .value = 0x03 },
+ { .hz = 10, .value = 0x04 },
+ { .hz = 20, .value = 0x05 },
+ { .hz = 40, .value = 0x06 },
+ { .hz = 80, .value = 0x07 },
+ },
+ },
+ .pw = {
+ .addr = 0x22,
+ .mask = 0x03,
+ .value_on = 0x00,
+ .value_off = 0x03,
+ },
+ .fs = {
+ .addr = 0x21,
+ .mask = 0x60,
+ .fs_avl = {
+ [0] = {
+ .num = ST_MAGN_FS_AVL_4000MG,
+ .value = 0x00,
+ .gain = 146,
+ },
+ [1] = {
+ .num = ST_MAGN_FS_AVL_8000MG,
+ .value = 0x01,
+ .gain = 292,
+ },
+ [2] = {
+ .num = ST_MAGN_FS_AVL_12000MG,
+ .value = 0x02,
+ .gain = 438,
+ },
+ [3] = {
+ .num = ST_MAGN_FS_AVL_16000MG,
+ .value = 0x03,
+ .gain = 584,
+ },
+ },
+ },
+ .bdu = {
+ .addr = 0x24,
+ .mask = 0x40,
+ },
+ .drdy_irq = {
+ /* drdy line is routed drdy pin */
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
+ },
+ .sim = {
+ .addr = 0x22,
+ .value = BIT(2),
+ },
+ .multi_read_bit = true,
+ .bootime = 2,
+ },
+ {
+ .wai = 0x40,
+ .wai_addr = 0x4f,
+ .sensors_supported = {
+ [0] = LSM303AGR_MAGN_DEV_NAME,
+ [1] = LIS2MDL_MAGN_DEV_NAME,
+ [2] = IIS2MDC_MAGN_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_magn_3_16bit_channels,
+ .odr = {
+ .addr = 0x60,
+ .mask = 0x0c,
+ .odr_avl = {
+ { .hz = 10, .value = 0x00 },
+ { .hz = 20, .value = 0x01 },
+ { .hz = 50, .value = 0x02 },
+ { .hz = 100, .value = 0x03 },
+ },
+ },
+ .pw = {
+ .addr = 0x60,
+ .mask = 0x03,
+ .value_on = 0x00,
+ .value_off = 0x03,
+ },
+ .fs = {
+ .fs_avl = {
+ [0] = {
+ .num = ST_MAGN_FS_AVL_15000MG,
+ .gain = 1500,
+ },
+ },
+ },
+ .bdu = {
+ .addr = 0x62,
+ .mask = 0x10,
+ },
+ .drdy_irq = {
+ .int1 = {
+ .addr = 0x62,
+ .mask = 0x01,
+ },
+ .stat_drdy = {
+ .addr = 0x67,
+ .mask = 0x07,
+ },
+ },
+ .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 */
+static const struct st_sensors_platform_data default_magn_pdata = {
+ .drdy_int_pin = 2,
+};
+
+static int st_magn_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *ch, int *val,
+ int *val2, long mask)
+{
+ int err;
+ struct st_sensor_data *mdata = iio_priv(indio_dev);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ err = st_sensors_read_info_raw(indio_dev, ch, val);
+ if (err < 0)
+ goto read_error;
+
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ *val = 0;
+ if ((ch->scan_index == ST_SENSORS_SCAN_Z) &&
+ (mdata->current_fullscale->gain2 != 0))
+ *val2 = mdata->current_fullscale->gain2;
+ else
+ *val2 = mdata->current_fullscale->gain;
+ return IIO_VAL_INT_PLUS_MICRO;
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ *val = mdata->odr;
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+
+read_error:
+ return err;
+}
+
+static int st_magn_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan, int val, int val2, long mask)
+{
+ switch (mask) {
+ case IIO_CHAN_INFO_SCALE:
+ return st_sensors_set_fullscale_by_gain(indio_dev, val2);
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ if (val2)
+ return -EINVAL;
+
+ return st_sensors_set_odr(indio_dev, val);
+ default:
+ return -EINVAL;
+ }
+}
+
+static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL();
+static ST_SENSORS_DEV_ATTR_SCALE_AVAIL(in_magn_scale_available);
+
+static struct attribute *st_magn_attributes[] = {
+ &iio_dev_attr_sampling_frequency_available.dev_attr.attr,
+ &iio_dev_attr_in_magn_scale_available.dev_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group st_magn_attribute_group = {
+ .attrs = st_magn_attributes,
+};
+
+static const struct iio_info magn_info = {
+ .attrs = &st_magn_attribute_group,
+ .read_raw = &st_magn_read_raw,
+ .write_raw = &st_magn_write_raw,
+ .debugfs_reg_access = &st_sensors_debugfs_reg_access,
+};
+
+#ifdef CONFIG_IIO_TRIGGER
+static const struct iio_trigger_ops st_magn_trigger_ops = {
+ .set_trigger_state = ST_MAGN_TRIGGER_SET_STATE,
+ .validate_device = st_sensors_validate_device,
+};
+#define ST_MAGN_TRIGGER_OPS (&st_magn_trigger_ops)
+#else
+#define ST_MAGN_TRIGGER_OPS NULL
+#endif
+
+/*
+ * st_magn_get_settings() - get sensor settings from device name
+ * @name: device name buffer reference.
+ *
+ * Return: valid reference on success, NULL otherwise.
+ */
+const struct st_sensor_settings *st_magn_get_settings(const char *name)
+{
+ int index = st_sensors_get_settings_index(name,
+ st_magn_sensors_settings,
+ ARRAY_SIZE(st_magn_sensors_settings));
+ if (index < 0)
+ return NULL;
+
+ return &st_magn_sensors_settings[index];
+}
+EXPORT_SYMBOL_NS(st_magn_get_settings, IIO_ST_SENSORS);
+
+int st_magn_common_probe(struct iio_dev *indio_dev)
+{
+ struct st_sensor_data *mdata = iio_priv(indio_dev);
+ struct device *parent = indio_dev->dev.parent;
+ struct st_sensors_platform_data *pdata = dev_get_platdata(parent);
+ int err;
+
+ indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->info = &magn_info;
+
+ err = st_sensors_verify_id(indio_dev);
+ if (err < 0)
+ return err;
+
+ mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS;
+ indio_dev->channels = mdata->sensor_settings->ch;
+ indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
+
+ err = iio_read_mount_matrix(parent, &mdata->mount_matrix);
+ if (err)
+ return err;
+
+ mdata->current_fullscale = &mdata->sensor_settings->fs.fs_avl[0];
+ mdata->odr = mdata->sensor_settings->odr.odr_avl[0].hz;
+
+ if (!pdata)
+ pdata = (struct st_sensors_platform_data *)&default_magn_pdata;
+
+ err = st_sensors_init_sensor(indio_dev, pdata);
+ if (err < 0)
+ return err;
+
+ err = st_magn_allocate_ring(indio_dev);
+ if (err < 0)
+ return err;
+
+ if (mdata->irq > 0) {
+ err = st_sensors_allocate_trigger(indio_dev,
+ ST_MAGN_TRIGGER_OPS);
+ if (err < 0)
+ return err;
+ }
+
+ return devm_iio_device_register(parent, indio_dev);
+}
+EXPORT_SYMBOL_NS(st_magn_common_probe, IIO_ST_SENSORS);
+
+MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics magnetometers driver");
+MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(IIO_ST_SENSORS);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-24 10:06:00 +0000