diff options
Diffstat (limited to 'drivers/iio/pressure')
| -rw-r--r-- | drivers/iio/pressure/Kconfig | 11 | ||||
| -rw-r--r-- | drivers/iio/pressure/Makefile | 1 | ||||
| -rw-r--r-- | drivers/iio/pressure/bmp280.c | 455 | ||||
| -rw-r--r-- | drivers/iio/pressure/st_pressure.h | 3 | ||||
| -rw-r--r-- | drivers/iio/pressure/st_pressure_buffer.c | 12 | ||||
| -rw-r--r-- | drivers/iio/pressure/st_pressure_core.c | 49 | ||||
| -rw-r--r-- | drivers/iio/pressure/st_pressure_i2c.c | 11 | ||||
| -rw-r--r-- | drivers/iio/pressure/st_pressure_spi.c | 11 |
8 files changed, 509 insertions, 44 deletions
diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig index 15afbc919521..a3be53792072 100644 --- a/drivers/iio/pressure/Kconfig +++ b/drivers/iio/pressure/Kconfig @@ -5,6 +5,17 @@ menu "Pressure sensors" +config BMP280 + tristate "Bosch Sensortec BMP280 pressure sensor driver" + depends on I2C + select REGMAP_I2C + help + Say yes here to build support for Bosch Sensortec BMP280 + pressure and temperature sensor. + + To compile this driver as a module, choose M here: the module + will be called bmp280. + config HID_SENSOR_PRESS depends on HID_SENSOR_HUB select IIO_BUFFER diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile index 90a37e85cf21..88011f2ae00e 100644 --- a/drivers/iio/pressure/Makefile +++ b/drivers/iio/pressure/Makefile @@ -3,6 +3,7 @@ # # When adding new entries keep the list in alphabetical order +obj-$(CONFIG_BMP280) += bmp280.o obj-$(CONFIG_HID_SENSOR_PRESS) += hid-sensor-press.o obj-$(CONFIG_MPL115) += mpl115.o obj-$(CONFIG_MPL3115) += mpl3115.o diff --git a/drivers/iio/pressure/bmp280.c b/drivers/iio/pressure/bmp280.c new file mode 100644 index 000000000000..75038dacfff1 --- /dev/null +++ b/drivers/iio/pressure/bmp280.c @@ -0,0 +1,455 @@ +/* + * Copyright (c) 2014 Intel Corporation + * + * Driver for Bosch Sensortec BMP280 digital pressure sensor. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#define pr_fmt(fmt) "bmp280: " fmt + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/acpi.h> +#include <linux/regmap.h> +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> + +#define BMP280_REG_TEMP_XLSB 0xFC +#define BMP280_REG_TEMP_LSB 0xFB +#define BMP280_REG_TEMP_MSB 0xFA +#define BMP280_REG_PRESS_XLSB 0xF9 +#define BMP280_REG_PRESS_LSB 0xF8 +#define BMP280_REG_PRESS_MSB 0xF7 + +#define BMP280_REG_CONFIG 0xF5 +#define BMP280_REG_CTRL_MEAS 0xF4 +#define BMP280_REG_STATUS 0xF3 +#define BMP280_REG_RESET 0xE0 +#define BMP280_REG_ID 0xD0 + +#define BMP280_REG_COMP_TEMP_START 0x88 +#define BMP280_COMP_TEMP_REG_COUNT 6 + +#define BMP280_REG_COMP_PRESS_START 0x8E +#define BMP280_COMP_PRESS_REG_COUNT 18 + +#define BMP280_FILTER_MASK (BIT(4) | BIT(3) | BIT(2)) +#define BMP280_FILTER_OFF 0 +#define BMP280_FILTER_2X BIT(2) +#define BMP280_FILTER_4X BIT(3) +#define BMP280_FILTER_8X (BIT(3) | BIT(2)) +#define BMP280_FILTER_16X BIT(4) + +#define BMP280_OSRS_TEMP_MASK (BIT(7) | BIT(6) | BIT(5)) +#define BMP280_OSRS_TEMP_SKIP 0 +#define BMP280_OSRS_TEMP_1X BIT(5) +#define BMP280_OSRS_TEMP_2X BIT(6) +#define BMP280_OSRS_TEMP_4X (BIT(6) | BIT(5)) +#define BMP280_OSRS_TEMP_8X BIT(7) +#define BMP280_OSRS_TEMP_16X (BIT(7) | BIT(5)) + +#define BMP280_OSRS_PRESS_MASK (BIT(4) | BIT(3) | BIT(2)) +#define BMP280_OSRS_PRESS_SKIP 0 +#define BMP280_OSRS_PRESS_1X BIT(2) +#define BMP280_OSRS_PRESS_2X BIT(3) +#define BMP280_OSRS_PRESS_4X (BIT(3) | BIT(2)) +#define BMP280_OSRS_PRESS_8X BIT(4) +#define BMP280_OSRS_PRESS_16X (BIT(4) | BIT(2)) + +#define BMP280_MODE_MASK (BIT(1) | BIT(0)) +#define BMP280_MODE_SLEEP 0 +#define BMP280_MODE_FORCED BIT(0) +#define BMP280_MODE_NORMAL (BIT(1) | BIT(0)) + +#define BMP280_CHIP_ID 0x58 +#define BMP280_SOFT_RESET_VAL 0xB6 + +struct bmp280_data { + struct i2c_client *client; + struct mutex lock; + struct regmap *regmap; + + /* + * Carryover value from temperature conversion, used in pressure + * calculation. + */ + s32 t_fine; +}; + +/* Compensation parameters. */ +struct bmp280_comp_temp { + u16 dig_t1; + s16 dig_t2, dig_t3; +}; + +struct bmp280_comp_press { + u16 dig_p1; + s16 dig_p2, dig_p3, dig_p4, dig_p5, dig_p6, dig_p7, dig_p8, dig_p9; +}; + +static const struct iio_chan_spec bmp280_channels[] = { + { + .type = IIO_PRESSURE, + .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), + }, + { + .type = IIO_TEMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), + }, +}; + +static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case BMP280_REG_CONFIG: + case BMP280_REG_CTRL_MEAS: + case BMP280_REG_RESET: + return true; + default: + return false; + }; +} + +static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case BMP280_REG_TEMP_XLSB: + case BMP280_REG_TEMP_LSB: + case BMP280_REG_TEMP_MSB: + case BMP280_REG_PRESS_XLSB: + case BMP280_REG_PRESS_LSB: + case BMP280_REG_PRESS_MSB: + case BMP280_REG_STATUS: + return true; + default: + return false; + } +} + +static const struct regmap_config bmp280_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = BMP280_REG_TEMP_XLSB, + .cache_type = REGCACHE_RBTREE, + + .writeable_reg = bmp280_is_writeable_reg, + .volatile_reg = bmp280_is_volatile_reg, +}; + +static int bmp280_read_compensation_temp(struct bmp280_data *data, + struct bmp280_comp_temp *comp) +{ + int ret; + __le16 buf[BMP280_COMP_TEMP_REG_COUNT / 2]; + + ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_TEMP_START, + buf, BMP280_COMP_TEMP_REG_COUNT); + if (ret < 0) { + dev_err(&data->client->dev, + "failed to read temperature calibration parameters\n"); + return ret; + } + + comp->dig_t1 = (u16) le16_to_cpu(buf[0]); + comp->dig_t2 = (s16) le16_to_cpu(buf[1]); + comp->dig_t3 = (s16) le16_to_cpu(buf[2]); + + return 0; +} + +static int bmp280_read_compensation_press(struct bmp280_data *data, + struct bmp280_comp_press *comp) +{ + int ret; + __le16 buf[BMP280_COMP_PRESS_REG_COUNT / 2]; + + ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_PRESS_START, + buf, BMP280_COMP_PRESS_REG_COUNT); + if (ret < 0) { + dev_err(&data->client->dev, + "failed to read pressure calibration parameters\n"); + return ret; + } + + comp->dig_p1 = (u16) le16_to_cpu(buf[0]); + comp->dig_p2 = (s16) le16_to_cpu(buf[1]); + comp->dig_p3 = (s16) le16_to_cpu(buf[2]); + comp->dig_p4 = (s16) le16_to_cpu(buf[3]); + comp->dig_p5 = (s16) le16_to_cpu(buf[4]); + comp->dig_p6 = (s16) le16_to_cpu(buf[5]); + comp->dig_p7 = (s16) le16_to_cpu(buf[6]); + comp->dig_p8 = (s16) le16_to_cpu(buf[7]); + comp->dig_p9 = (s16) le16_to_cpu(buf[8]); + + return 0; +} + +/* + * Returns temperature in DegC, resolution is 0.01 DegC. Output value of + * "5123" equals 51.23 DegC. t_fine carries fine temperature as global + * value. + * + * Taken from datasheet, Section 3.11.3, "Compensation formula". + */ +static s32 bmp280_compensate_temp(struct bmp280_data *data, + struct bmp280_comp_temp *comp, + s32 adc_temp) +{ + s32 var1, var2, t; + + var1 = (((adc_temp >> 3) - ((s32) comp->dig_t1 << 1)) * + ((s32) comp->dig_t2)) >> 11; + var2 = (((((adc_temp >> 4) - ((s32) comp->dig_t1)) * + ((adc_temp >> 4) - ((s32) comp->dig_t1))) >> 12) * + ((s32) comp->dig_t3)) >> 14; + + data->t_fine = var1 + var2; + t = (data->t_fine * 5 + 128) >> 8; + + return t; +} + +/* + * Returns pressure in Pa as unsigned 32 bit integer in Q24.8 format (24 + * integer bits and 8 fractional bits). Output value of "24674867" + * represents 24674867/256 = 96386.2 Pa = 963.862 hPa + * + * Taken from datasheet, Section 3.11.3, "Compensation formula". + */ +static u32 bmp280_compensate_press(struct bmp280_data *data, + struct bmp280_comp_press *comp, + s32 adc_press) +{ + s64 var1, var2, p; + + var1 = ((s64) data->t_fine) - 128000; + var2 = var1 * var1 * (s64) comp->dig_p6; + var2 = var2 + ((var1 * (s64) comp->dig_p5) << 17); + var2 = var2 + (((s64) comp->dig_p4) << 35); + var1 = ((var1 * var1 * (s64) comp->dig_p3) >> 8) + + ((var1 * (s64) comp->dig_p2) << 12); + var1 = (((((s64) 1) << 47) + var1)) * ((s64) comp->dig_p1) >> 33; + + if (var1 == 0) + return 0; + + p = ((((s64) 1048576 - adc_press) << 31) - var2) * 3125; + p = div64_s64(p, var1); + var1 = (((s64) comp->dig_p9) * (p >> 13) * (p >> 13)) >> 25; + var2 = (((s64) comp->dig_p8) * p) >> 19; + p = ((p + var1 + var2) >> 8) + (((s64) comp->dig_p7) << 4); + + return (u32) p; +} + +static int bmp280_read_temp(struct bmp280_data *data, + int *val) +{ + int ret; + __be32 tmp = 0; + s32 adc_temp, comp_temp; + struct bmp280_comp_temp comp; + + ret = bmp280_read_compensation_temp(data, &comp); + if (ret < 0) + return ret; + + ret = regmap_bulk_read(data->regmap, BMP280_REG_TEMP_MSB, + (u8 *) &tmp, 3); + if (ret < 0) { + dev_err(&data->client->dev, "failed to read temperature\n"); + return ret; + } + + adc_temp = be32_to_cpu(tmp) >> 12; + comp_temp = bmp280_compensate_temp(data, &comp, adc_temp); + + /* + * val might be NULL if we're called by the read_press routine, + * who only cares about the carry over t_fine value. + */ + if (val) { + *val = comp_temp * 10; + return IIO_VAL_INT; + } + + return 0; +} + +static int bmp280_read_press(struct bmp280_data *data, + int *val, int *val2) +{ + int ret; + __be32 tmp = 0; + s32 adc_press; + u32 comp_press; + struct bmp280_comp_press comp; + + ret = bmp280_read_compensation_press(data, &comp); + if (ret < 0) + return ret; + + /* Read and compensate temperature so we get a reading of t_fine. */ + ret = bmp280_read_temp(data, NULL); + if (ret < 0) + return ret; + + ret = regmap_bulk_read(data->regmap, BMP280_REG_PRESS_MSB, + (u8 *) &tmp, 3); + if (ret < 0) { + dev_err(&data->client->dev, "failed to read pressure\n"); + return ret; + } + + adc_press = be32_to_cpu(tmp) >> 12; + comp_press = bmp280_compensate_press(data, &comp, adc_press); + + *val = comp_press; + *val2 = 256000; + + return IIO_VAL_FRACTIONAL; +} + +static int bmp280_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + int ret; + struct bmp280_data *data = iio_priv(indio_dev); + + mutex_lock(&data->lock); + + switch (mask) { + case IIO_CHAN_INFO_PROCESSED: + switch (chan->type) { + case IIO_PRESSURE: + ret = bmp280_read_press(data, val, val2); + break; + case IIO_TEMP: + ret = bmp280_read_temp(data, val); + break; + default: + ret = -EINVAL; + break; + } + break; + default: + ret = -EINVAL; + break; + } + + mutex_unlock(&data->lock); + + return ret; +} + +static const struct iio_info bmp280_info = { + .driver_module = THIS_MODULE, + .read_raw = &bmp280_read_raw, +}; + +static int bmp280_chip_init(struct bmp280_data *data) +{ + int ret; + + ret = regmap_update_bits(data->regmap, BMP280_REG_CTRL_MEAS, + BMP280_OSRS_TEMP_MASK | + BMP280_OSRS_PRESS_MASK | + BMP280_MODE_MASK, + BMP280_OSRS_TEMP_2X | + BMP280_OSRS_PRESS_16X | + BMP280_MODE_NORMAL); + if (ret < 0) { + dev_err(&data->client->dev, + "failed to write config register\n"); + return ret; + } + + ret = regmap_update_bits(data->regmap, BMP280_REG_CONFIG, + BMP280_FILTER_MASK, + BMP280_FILTER_4X); + if (ret < 0) { + dev_err(&data->client->dev, + "failed to write config register\n"); + return ret; + } + + return ret; +} + +static int bmp280_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int ret; + struct iio_dev *indio_dev; + struct bmp280_data *data; + unsigned int chip_id; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + i2c_set_clientdata(client, indio_dev); + data = iio_priv(indio_dev); + mutex_init(&data->lock); + data->client = client; + + indio_dev->dev.parent = &client->dev; + indio_dev->name = id->name; + indio_dev->channels = bmp280_channels; + indio_dev->num_channels = ARRAY_SIZE(bmp280_channels); + indio_dev->info = &bmp280_info; + indio_dev->modes = INDIO_DIRECT_MODE; + + data->regmap = devm_regmap_init_i2c(client, &bmp280_regmap_config); + if (IS_ERR(data->regmap)) { + dev_err(&client->dev, "failed to allocate register map\n"); + return PTR_ERR(data->regmap); + } + + ret = regmap_read(data->regmap, BMP280_REG_ID, &chip_id); + if (ret < 0) + return ret; + if (chip_id != BMP280_CHIP_ID) { + dev_err(&client->dev, "bad chip id. expected %x got %x\n", + BMP280_CHIP_ID, chip_id); + return -EINVAL; + } + + ret = bmp280_chip_init(data); + if (ret < 0) + return ret; + + return devm_iio_device_register(&client->dev, indio_dev); +} + +static const struct acpi_device_id bmp280_acpi_match[] = { + {"BMP0280", 0}, + { }, +}; +MODULE_DEVICE_TABLE(acpi, bmp280_acpi_match); + +static const struct i2c_device_id bmp280_id[] = { + {"bmp280", 0}, + { }, +}; +MODULE_DEVICE_TABLE(i2c, bmp280_id); + +static struct i2c_driver bmp280_driver = { + .driver = { + .name = "bmp280", + .acpi_match_table = ACPI_PTR(bmp280_acpi_match), + }, + .probe = bmp280_probe, + .id_table = bmp280_id, +}; +module_i2c_driver(bmp280_driver); + +MODULE_AUTHOR("Vlad Dogaru <vlad.dogaru@intel.com>"); +MODULE_DESCRIPTION("Driver for Bosch Sensortec BMP280 pressure and temperature sensor"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h index 242943c0c4e4..f5f41490060b 100644 --- a/drivers/iio/pressure/st_pressure.h +++ b/drivers/iio/pressure/st_pressure.h @@ -26,8 +26,7 @@ static const struct st_sensors_platform_data default_press_pdata = { .drdy_int_pin = 1, }; -int st_press_common_probe(struct iio_dev *indio_dev, - struct st_sensors_platform_data *pdata); +int st_press_common_probe(struct iio_dev *indio_dev); void st_press_common_remove(struct iio_dev *indio_dev); #ifdef CONFIG_IIO_BUFFER diff --git a/drivers/iio/pressure/st_pressure_buffer.c b/drivers/iio/pressure/st_pressure_buffer.c index b37b1c9ac932..2ff53f222352 100644 --- a/drivers/iio/pressure/st_pressure_buffer.c +++ b/drivers/iio/pressure/st_pressure_buffer.c @@ -38,10 +38,10 @@ static int st_press_buffer_preenable(struct iio_dev *indio_dev) static int st_press_buffer_postenable(struct iio_dev *indio_dev) { int err; - struct st_sensor_data *pdata = iio_priv(indio_dev); + struct st_sensor_data *press_data = iio_priv(indio_dev); - pdata->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); - if (pdata->buffer_data == NULL) { + press_data->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); + if (press_data->buffer_data == NULL) { err = -ENOMEM; goto allocate_memory_error; } @@ -53,7 +53,7 @@ static int st_press_buffer_postenable(struct iio_dev *indio_dev) return err; st_press_buffer_postenable_error: - kfree(pdata->buffer_data); + kfree(press_data->buffer_data); allocate_memory_error: return err; } @@ -61,7 +61,7 @@ allocate_memory_error: static int st_press_buffer_predisable(struct iio_dev *indio_dev) { int err; - struct st_sensor_data *pdata = iio_priv(indio_dev); + struct st_sensor_data *press_data = iio_priv(indio_dev); err = iio_triggered_buffer_predisable(indio_dev); if (err < 0) @@ -70,7 +70,7 @@ static int st_press_buffer_predisable(struct iio_dev *indio_dev) err = st_sensors_set_enable(indio_dev, false); st_press_buffer_predisable_error: - kfree(pdata->buffer_data); + kfree(press_data->buffer_data); return err; } diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index 473d914ef470..97baf40d424b 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -175,7 +175,7 @@ static const struct iio_chan_spec st_press_lps001wp_channels[] = { IIO_CHAN_SOFT_TIMESTAMP(1) }; -static const struct st_sensors st_press_sensors[] = { +static const struct st_sensor_settings st_press_sensors_settings[] = { { .wai = ST_PRESS_LPS331AP_WAI_EXP, .sensors_supported = { @@ -333,7 +333,7 @@ static int st_press_read_raw(struct iio_dev *indio_dev, int *val2, long mask) { int err; - struct st_sensor_data *pdata = iio_priv(indio_dev); + struct st_sensor_data *press_data = iio_priv(indio_dev); switch (mask) { case IIO_CHAN_INFO_RAW: @@ -347,10 +347,10 @@ static int st_press_read_raw(struct iio_dev *indio_dev, switch (ch->type) { case IIO_PRESSURE: - *val2 = pdata->current_fullscale->gain; + *val2 = press_data->current_fullscale->gain; break; case IIO_TEMP: - *val2 = pdata->current_fullscale->gain2; + *val2 = press_data->current_fullscale->gain2; break; default: err = -EINVAL; @@ -371,7 +371,7 @@ static int st_press_read_raw(struct iio_dev *indio_dev, return IIO_VAL_FRACTIONAL; case IIO_CHAN_INFO_SAMP_FREQ: - *val = pdata->odr; + *val = press_data->odr; return IIO_VAL_INT; default: return -EINVAL; @@ -409,11 +409,10 @@ static const struct iio_trigger_ops st_press_trigger_ops = { #define ST_PRESS_TRIGGER_OPS NULL #endif -int st_press_common_probe(struct iio_dev *indio_dev, - struct st_sensors_platform_data *plat_data) +int st_press_common_probe(struct iio_dev *indio_dev) { - struct st_sensor_data *pdata = iio_priv(indio_dev); - int irq = pdata->get_irq_data_ready(indio_dev); + struct st_sensor_data *press_data = iio_priv(indio_dev); + int irq = press_data->get_irq_data_ready(indio_dev); int err; indio_dev->modes = INDIO_DIRECT_MODE; @@ -422,28 +421,30 @@ int st_press_common_probe(struct iio_dev *indio_dev, st_sensors_power_enable(indio_dev); err = st_sensors_check_device_support(indio_dev, - ARRAY_SIZE(st_press_sensors), - st_press_sensors); + ARRAY_SIZE(st_press_sensors_settings), + st_press_sensors_settings); if (err < 0) return err; - pdata->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS; - pdata->multiread_bit = pdata->sensor->multi_read_bit; - indio_dev->channels = pdata->sensor->ch; - indio_dev->num_channels = pdata->sensor->num_ch; + press_data->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS; + press_data->multiread_bit = press_data->sensor_settings->multi_read_bit; + indio_dev->channels = press_data->sensor_settings->ch; + indio_dev->num_channels = press_data->sensor_settings->num_ch; - if (pdata->sensor->fs.addr != 0) - pdata->current_fullscale = (struct st_sensor_fullscale_avl *) - &pdata->sensor->fs.fs_avl[0]; + if (press_data->sensor_settings->fs.addr != 0) + press_data->current_fullscale = + (struct st_sensor_fullscale_avl *) + &press_data->sensor_settings->fs.fs_avl[0]; - pdata->odr = pdata->sensor->odr.odr_avl[0].hz; + press_data->odr = press_data->sensor_settings->odr.odr_avl[0].hz; /* Some devices don't support a data ready pin. */ - if (!plat_data && pdata->sensor->drdy_irq.addr) - plat_data = + if (!press_data->dev->platform_data && + press_data->sensor_settings->drdy_irq.addr) + press_data->dev->platform_data = (struct st_sensors_platform_data *)&default_press_pdata; - err = st_sensors_init_sensor(indio_dev, plat_data); + err = st_sensors_init_sensor(indio_dev, press_data->dev->platform_data); if (err < 0) return err; @@ -479,12 +480,12 @@ EXPORT_SYMBOL(st_press_common_probe); void st_press_common_remove(struct iio_dev *indio_dev) { - struct st_sensor_data *pdata = iio_priv(indio_dev); + struct st_sensor_data *press_data = iio_priv(indio_dev); st_sensors_power_disable(indio_dev); iio_device_unregister(indio_dev); - if (pdata->get_irq_data_ready(indio_dev) > 0) + if (press_data->get_irq_data_ready(indio_dev) > 0) st_sensors_deallocate_trigger(indio_dev); st_press_deallocate_ring(indio_dev); diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c index acaf165260bb..137788bba4a3 100644 --- a/drivers/iio/pressure/st_pressure_i2c.c +++ b/drivers/iio/pressure/st_pressure_i2c.c @@ -43,20 +43,19 @@ static int st_press_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct iio_dev *indio_dev; - struct st_sensor_data *pdata; + struct st_sensor_data *press_data; int err; - indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*pdata)); + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data)); if (!indio_dev) return -ENOMEM; - pdata = iio_priv(indio_dev); - pdata->dev = &client->dev; + press_data = iio_priv(indio_dev); st_sensors_of_i2c_probe(client, st_press_of_match); - st_sensors_i2c_configure(indio_dev, client, pdata); + st_sensors_i2c_configure(indio_dev, client, press_data); - err = st_press_common_probe(indio_dev, client->dev.platform_data); + err = st_press_common_probe(indio_dev); if (err < 0) return err; diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c index f45d430ec529..1ffa6d4d349c 100644 --- a/drivers/iio/pressure/st_pressure_spi.c +++ b/drivers/iio/pressure/st_pressure_spi.c @@ -21,19 +21,18 @@ static int st_press_spi_probe(struct spi_device *spi) { struct iio_dev *indio_dev; - struct st_sensor_data *pdata; + struct st_sensor_data *press_data; int err; - indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*pdata)); + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*press_data)); if (indio_dev == NULL) return -ENOMEM; - pdata = iio_priv(indio_dev); - pdata->dev = &spi->dev; + press_data = iio_priv(indio_dev); - st_sensors_spi_configure(indio_dev, spi, pdata); + st_sensors_spi_configure(indio_dev, spi, press_data); - err = st_press_common_probe(indio_dev, spi->dev.platform_data); + err = st_press_common_probe(indio_dev); if (err < 0) return err; |