[deliverable/linux.git] / drivers / iio / pressure / st_pressure_core.c

/*
 * STMicroelectronics pressures driver
 *
 * Copyright 2013 STMicroelectronics Inc.
 *
 * Denis Ciocca <denis.ciocca@st.com>
 *
 * Licensed under the GPL-2.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/mutex.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include <linux/iio/trigger.h>
#include <linux/iio/buffer.h>
#include <asm/unaligned.h>

#include <linux/iio/common/st_sensors.h>
#include "st_pressure.h"

#define MCELSIUS_PER_CELSIUS			1000

/* Default pressure sensitivity */
#define ST_PRESS_LSB_PER_MBAR			4096UL
#define ST_PRESS_KPASCAL_NANO_SCALE		(100000000UL / \
						 ST_PRESS_LSB_PER_MBAR)

/* Default temperature sensitivity */
#define ST_PRESS_LSB_PER_CELSIUS		480UL
#define ST_PRESS_MILLI_CELSIUS_OFFSET		42500UL

#define ST_PRESS_NUMBER_DATA_CHANNELS		1

/* FULLSCALE */
#define ST_PRESS_FS_AVL_1100MB			1100
#define ST_PRESS_FS_AVL_1260MB			1260

#define ST_PRESS_1_OUT_XL_ADDR			0x28
#define ST_TEMP_1_OUT_L_ADDR			0x2b

/* CUSTOM VALUES FOR LPS331AP SENSOR */
#define ST_PRESS_LPS331AP_WAI_EXP		0xbb
#define ST_PRESS_LPS331AP_ODR_ADDR		0x20
#define ST_PRESS_LPS331AP_ODR_MASK		0x70
#define ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL	0x01
#define ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL	0x05
#define ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL	0x06
#define ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL	0x07
#define ST_PRESS_LPS331AP_PW_ADDR		0x20
#define ST_PRESS_LPS331AP_PW_MASK		0x80
#define ST_PRESS_LPS331AP_FS_ADDR		0x23
#define ST_PRESS_LPS331AP_FS_MASK		0x30
#define ST_PRESS_LPS331AP_BDU_ADDR		0x20
#define ST_PRESS_LPS331AP_BDU_MASK		0x04
#define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR		0x22
#define ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK	0x04
#define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK	0x20
#define ST_PRESS_LPS331AP_IHL_IRQ_ADDR		0x22
#define ST_PRESS_LPS331AP_IHL_IRQ_MASK		0x80
#define ST_PRESS_LPS331AP_OD_IRQ_ADDR		0x22
#define ST_PRESS_LPS331AP_OD_IRQ_MASK		0x40
#define ST_PRESS_LPS331AP_MULTIREAD_BIT		true

/* CUSTOM VALUES FOR LPS001WP SENSOR */

/* LPS001WP pressure resolution */
#define ST_PRESS_LPS001WP_LSB_PER_MBAR		16UL
/* LPS001WP temperature resolution */
#define ST_PRESS_LPS001WP_LSB_PER_CELSIUS	64UL

#define ST_PRESS_LPS001WP_WAI_EXP		0xba
#define ST_PRESS_LPS001WP_ODR_ADDR		0x20
#define ST_PRESS_LPS001WP_ODR_MASK		0x30
#define ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL	0x01
#define ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL	0x02
#define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL	0x03
#define ST_PRESS_LPS001WP_PW_ADDR		0x20
#define ST_PRESS_LPS001WP_PW_MASK		0x40
#define ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN \
	(100000000UL / ST_PRESS_LPS001WP_LSB_PER_MBAR)
#define ST_PRESS_LPS001WP_BDU_ADDR		0x20
#define ST_PRESS_LPS001WP_BDU_MASK		0x04
#define ST_PRESS_LPS001WP_MULTIREAD_BIT		true
#define ST_PRESS_LPS001WP_OUT_L_ADDR		0x28
#define ST_TEMP_LPS001WP_OUT_L_ADDR		0x2a

/* CUSTOM VALUES FOR LPS25H SENSOR */
#define ST_PRESS_LPS25H_WAI_EXP			0xbd
#define ST_PRESS_LPS25H_ODR_ADDR		0x20
#define ST_PRESS_LPS25H_ODR_MASK		0x70
#define ST_PRESS_LPS25H_ODR_AVL_1HZ_VAL		0x01
#define ST_PRESS_LPS25H_ODR_AVL_7HZ_VAL		0x02
#define ST_PRESS_LPS25H_ODR_AVL_13HZ_VAL	0x03
#define ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL	0x04
#define ST_PRESS_LPS25H_PW_ADDR			0x20
#define ST_PRESS_LPS25H_PW_MASK			0x80
#define ST_PRESS_LPS25H_BDU_ADDR		0x20
#define ST_PRESS_LPS25H_BDU_MASK		0x04
#define ST_PRESS_LPS25H_DRDY_IRQ_ADDR		0x23
#define ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK	0x01
#define ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK	0x10
#define ST_PRESS_LPS25H_IHL_IRQ_ADDR		0x22
#define ST_PRESS_LPS25H_IHL_IRQ_MASK		0x80
#define ST_PRESS_LPS25H_OD_IRQ_ADDR		0x22
#define ST_PRESS_LPS25H_OD_IRQ_MASK		0x40
#define ST_PRESS_LPS25H_MULTIREAD_BIT		true
#define ST_PRESS_LPS25H_OUT_XL_ADDR		0x28
#define ST_TEMP_LPS25H_OUT_L_ADDR		0x2b

static const struct iio_chan_spec st_press_1_channels[] = {
	{
		.type = IIO_PRESSURE,
		.channel2 = IIO_NO_MOD,
		.address = ST_PRESS_1_OUT_XL_ADDR,
		.scan_index = ST_SENSORS_SCAN_X,
		.scan_type = {
			.sign = 'u',
			.realbits = 24,
			.storagebits = 24,
			.endianness = IIO_LE,
		},
		.info_mask_separate =
			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
		.modified = 0,
	},
	{
		.type = IIO_TEMP,
		.channel2 = IIO_NO_MOD,
		.address = ST_TEMP_1_OUT_L_ADDR,
		.scan_index = -1,
		.scan_type = {
			.sign = 'u',
			.realbits = 16,
			.storagebits = 16,
			.endianness = IIO_LE,
		},
		.info_mask_separate =
			BIT(IIO_CHAN_INFO_RAW) |
			BIT(IIO_CHAN_INFO_SCALE) |
			BIT(IIO_CHAN_INFO_OFFSET),
		.modified = 0,
	},
	IIO_CHAN_SOFT_TIMESTAMP(1)
};

static const struct iio_chan_spec st_press_lps001wp_channels[] = {
	{
		.type = IIO_PRESSURE,
		.channel2 = IIO_NO_MOD,
		.address = ST_PRESS_LPS001WP_OUT_L_ADDR,
		.scan_index = ST_SENSORS_SCAN_X,
		.scan_type = {
			.sign = 'u',
			.realbits = 16,
			.storagebits = 16,
			.endianness = IIO_LE,
		},
		.info_mask_separate =
			BIT(IIO_CHAN_INFO_RAW) |
			BIT(IIO_CHAN_INFO_SCALE),
		.modified = 0,
	},
	{
		.type = IIO_TEMP,
		.channel2 = IIO_NO_MOD,
		.address = ST_TEMP_LPS001WP_OUT_L_ADDR,
		.scan_index = -1,
		.scan_type = {
			.sign = 'u',
			.realbits = 16,
			.storagebits = 16,
			.endianness = IIO_LE,
		},
		.info_mask_separate =
			BIT(IIO_CHAN_INFO_RAW) |
			BIT(IIO_CHAN_INFO_SCALE),
		.modified = 0,
	},
	IIO_CHAN_SOFT_TIMESTAMP(1)
};

static const struct st_sensor_settings st_press_sensors_settings[] = {
	{
		.wai = ST_PRESS_LPS331AP_WAI_EXP,
		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
		.sensors_supported = {
			[0] = LPS331AP_PRESS_DEV_NAME,
		},
		.ch = (struct iio_chan_spec *)st_press_1_channels,
		.num_ch = ARRAY_SIZE(st_press_1_channels),
		.odr = {
			.addr = ST_PRESS_LPS331AP_ODR_ADDR,
			.mask = ST_PRESS_LPS331AP_ODR_MASK,
			.odr_avl = {
				{ 1, ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL, },
				{ 7, ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL, },
				{ 13, ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL, },
				{ 25, ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL, },
			},
		},
		.pw = {
			.addr = ST_PRESS_LPS331AP_PW_ADDR,
			.mask = ST_PRESS_LPS331AP_PW_MASK,
			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
		},
		.fs = {
			.addr = ST_PRESS_LPS331AP_FS_ADDR,
			.mask = ST_PRESS_LPS331AP_FS_MASK,
			.fs_avl = {
				/*
				 * Pressure and temperature sensitivity values
				 * as defined in table 3 of LPS331AP datasheet.
				 */
				[0] = {
					.num = ST_PRESS_FS_AVL_1260MB,
					.gain = ST_PRESS_KPASCAL_NANO_SCALE,
					.gain2 = ST_PRESS_LSB_PER_CELSIUS,
				},
			},
		},
		.bdu = {
			.addr = ST_PRESS_LPS331AP_BDU_ADDR,
			.mask = ST_PRESS_LPS331AP_BDU_MASK,
		},
		.drdy_irq = {
			.addr = ST_PRESS_LPS331AP_DRDY_IRQ_ADDR,
			.mask_int1 = ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK,
			.mask_int2 = ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK,
			.addr_ihl = ST_PRESS_LPS331AP_IHL_IRQ_ADDR,
			.mask_ihl = ST_PRESS_LPS331AP_IHL_IRQ_MASK,
			.addr_od = ST_PRESS_LPS331AP_OD_IRQ_ADDR,
			.mask_od = ST_PRESS_LPS331AP_OD_IRQ_MASK,
			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
		},
		.multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT,
		.bootime = 2,
	},
	{
		.wai = ST_PRESS_LPS001WP_WAI_EXP,
		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
		.sensors_supported = {
			[0] = LPS001WP_PRESS_DEV_NAME,
		},
		.ch = (struct iio_chan_spec *)st_press_lps001wp_channels,
		.num_ch = ARRAY_SIZE(st_press_lps001wp_channels),
		.odr = {
			.addr = ST_PRESS_LPS001WP_ODR_ADDR,
			.mask = ST_PRESS_LPS001WP_ODR_MASK,
			.odr_avl = {
				{ 1, ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL, },
				{ 7, ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL, },
				{ 13, ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL, },
			},
		},
		.pw = {
			.addr = ST_PRESS_LPS001WP_PW_ADDR,
			.mask = ST_PRESS_LPS001WP_PW_MASK,
			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
		},
		.fs = {
			.fs_avl = {
				/*
				 * Pressure and temperature resolution values
				 * as defined in table 3 of LPS001WP datasheet.
				 */
				[0] = {
					.num = ST_PRESS_FS_AVL_1100MB,
					.gain = ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN,
					.gain2 = ST_PRESS_LPS001WP_LSB_PER_CELSIUS,
				},
			},
		},
		.bdu = {
			.addr = ST_PRESS_LPS001WP_BDU_ADDR,
			.mask = ST_PRESS_LPS001WP_BDU_MASK,
		},
		.drdy_irq = {
			.addr = 0,
		},
		.multi_read_bit = ST_PRESS_LPS001WP_MULTIREAD_BIT,
		.bootime = 2,
	},
	{
		.wai = ST_PRESS_LPS25H_WAI_EXP,
		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
		.sensors_supported = {
			[0] = LPS25H_PRESS_DEV_NAME,
		},
		.ch = (struct iio_chan_spec *)st_press_1_channels,
		.num_ch = ARRAY_SIZE(st_press_1_channels),
		.odr = {
			.addr = ST_PRESS_LPS25H_ODR_ADDR,
			.mask = ST_PRESS_LPS25H_ODR_MASK,
			.odr_avl = {
				{ 1, ST_PRESS_LPS25H_ODR_AVL_1HZ_VAL, },
				{ 7, ST_PRESS_LPS25H_ODR_AVL_7HZ_VAL, },
				{ 13, ST_PRESS_LPS25H_ODR_AVL_13HZ_VAL, },
				{ 25, ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL, },
			},
		},
		.pw = {
			.addr = ST_PRESS_LPS25H_PW_ADDR,
			.mask = ST_PRESS_LPS25H_PW_MASK,
			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
		},
		.fs = {
			.fs_avl = {
				/*
				 * Pressure and temperature sensitivity values
				 * as defined in table 3 of LPS25H datasheet.
				 */
				[0] = {
					.num = ST_PRESS_FS_AVL_1260MB,
					.gain = ST_PRESS_KPASCAL_NANO_SCALE,
					.gain2 = ST_PRESS_LSB_PER_CELSIUS,
				},
			},
		},
		.bdu = {
			.addr = ST_PRESS_LPS25H_BDU_ADDR,
			.mask = ST_PRESS_LPS25H_BDU_MASK,
		},
		.drdy_irq = {
			.addr = ST_PRESS_LPS25H_DRDY_IRQ_ADDR,
			.mask_int1 = ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK,
			.mask_int2 = ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK,
			.addr_ihl = ST_PRESS_LPS25H_IHL_IRQ_ADDR,
			.mask_ihl = ST_PRESS_LPS25H_IHL_IRQ_MASK,
			.addr_od = ST_PRESS_LPS25H_OD_IRQ_ADDR,
			.mask_od = ST_PRESS_LPS25H_OD_IRQ_MASK,
			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
		},
		.multi_read_bit = ST_PRESS_LPS25H_MULTIREAD_BIT,
		.bootime = 2,
	},
};

static int st_press_write_raw(struct iio_dev *indio_dev,
			      struct iio_chan_spec const *ch,
			      int val,
			      int val2,
			      long mask)
{
	int err;

	switch (mask) {
	case IIO_CHAN_INFO_SAMP_FREQ:
		if (val2)
			return -EINVAL;
		mutex_lock(&indio_dev->mlock);
		err = st_sensors_set_odr(indio_dev, val);
		mutex_unlock(&indio_dev->mlock);
		return err;
	default:
		return -EINVAL;
	}
}

static int st_press_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 *press_data = 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:
		switch (ch->type) {
		case IIO_PRESSURE:
			*val = 0;
			*val2 = press_data->current_fullscale->gain;
			return IIO_VAL_INT_PLUS_NANO;
		case IIO_TEMP:
			*val = MCELSIUS_PER_CELSIUS;
			*val2 = press_data->current_fullscale->gain2;
			return IIO_VAL_FRACTIONAL;
		default:
			err = -EINVAL;
			goto read_error;
		}

	case IIO_CHAN_INFO_OFFSET:
		switch (ch->type) {
		case IIO_TEMP:
			*val = ST_PRESS_MILLI_CELSIUS_OFFSET *
			       press_data->current_fullscale->gain2;
			*val2 = MCELSIUS_PER_CELSIUS;
			break;
		default:
			err = -EINVAL;
			goto read_error;
		}

		return IIO_VAL_FRACTIONAL;
	case IIO_CHAN_INFO_SAMP_FREQ:
		*val = press_data->odr;
		return IIO_VAL_INT;
	default:
		return -EINVAL;
	}

read_error:
	return err;
}

static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL();

static struct attribute *st_press_attributes[] = {
	&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
	NULL,
};

static const struct attribute_group st_press_attribute_group = {
	.attrs = st_press_attributes,
};

static const struct iio_info press_info = {
	.driver_module = THIS_MODULE,
	.attrs = &st_press_attribute_group,
	.read_raw = &st_press_read_raw,
	.write_raw = &st_press_write_raw,
	.debugfs_reg_access = &st_sensors_debugfs_reg_access,
};

#ifdef CONFIG_IIO_TRIGGER
static const struct iio_trigger_ops st_press_trigger_ops = {
	.owner = THIS_MODULE,
	.set_trigger_state = ST_PRESS_TRIGGER_SET_STATE,
	.validate_device = st_sensors_validate_device,
};
#define ST_PRESS_TRIGGER_OPS (&st_press_trigger_ops)
#else
#define ST_PRESS_TRIGGER_OPS NULL
#endif

int st_press_common_probe(struct iio_dev *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;
	indio_dev->info = &press_info;
	mutex_init(&press_data->tb.buf_lock);

	st_sensors_power_enable(indio_dev);

	err = st_sensors_check_device_support(indio_dev,
					ARRAY_SIZE(st_press_sensors_settings),
					st_press_sensors_settings);
	if (err < 0)
		return err;

	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 (press_data->sensor_settings->fs.addr != 0)
		press_data->current_fullscale =
			(struct st_sensor_fullscale_avl *)
				&press_data->sensor_settings->fs.fs_avl[0];

	press_data->odr = press_data->sensor_settings->odr.odr_avl[0].hz;

	/* Some devices don't support a data ready pin. */
	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, press_data->dev->platform_data);
	if (err < 0)
		return err;

	err = st_press_allocate_ring(indio_dev);
	if (err < 0)
		return err;

	if (irq > 0) {
		err = st_sensors_allocate_trigger(indio_dev,
						  ST_PRESS_TRIGGER_OPS);
		if (err < 0)
			goto st_press_probe_trigger_error;
	}

	err = iio_device_register(indio_dev);
	if (err)
		goto st_press_device_register_error;

	dev_info(&indio_dev->dev, "registered pressure sensor %s\n",
		 indio_dev->name);

	return err;

st_press_device_register_error:
	if (irq > 0)
		st_sensors_deallocate_trigger(indio_dev);
st_press_probe_trigger_error:
	st_press_deallocate_ring(indio_dev);

	return err;
}
EXPORT_SYMBOL(st_press_common_probe);

void st_press_common_remove(struct iio_dev *indio_dev)
{
	struct st_sensor_data *press_data = iio_priv(indio_dev);

	st_sensors_power_disable(indio_dev);

	iio_device_unregister(indio_dev);
	if (press_data->get_irq_data_ready(indio_dev) > 0)
		st_sensors_deallocate_trigger(indio_dev);

	st_press_deallocate_ring(indio_dev);
}
EXPORT_SYMBOL(st_press_common_remove);

MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
MODULE_DESCRIPTION("STMicroelectronics pressures driver");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
217494e5 DC	1	/*
	2	* STMicroelectronics pressures driver
	3	*
	4	* Copyright 2013 STMicroelectronics Inc.
	5	*
	6	* Denis Ciocca <denis.ciocca@st.com>
	7	*
	8	* Licensed under the GPL-2.
	9	*/
	10
	11	#include <linux/kernel.h>
	12	#include <linux/module.h>
	13	#include <linux/slab.h>
	14	#include <linux/errno.h>
	15	#include <linux/types.h>
	16	#include <linux/mutex.h>
	17	#include <linux/interrupt.h>
	18	#include <linux/i2c.h>
	19	#include <linux/gpio.h>
	20	#include <linux/irq.h>
	21	#include <linux/delay.h>
	22	#include <linux/iio/iio.h>
	23	#include <linux/iio/sysfs.h>
	24	#include <linux/iio/trigger.h>
	25	#include <linux/iio/buffer.h>
	26	#include <asm/unaligned.h>
	27
	28	#include <linux/iio/common/st_sensors.h>
	29	#include "st_pressure.h"
	30
d43a4115 GB	31	#define MCELSIUS_PER_CELSIUS 1000
	32
	33	/* Default pressure sensitivity */
67dbf54a JA	34	#define ST_PRESS_LSB_PER_MBAR 4096UL
	35	#define ST_PRESS_KPASCAL_NANO_SCALE (100000000UL / \
	36	ST_PRESS_LSB_PER_MBAR)
d43a4115 GB	37
d43a4115 GB	38	/* Default temperature sensitivity */
1003eb67	39	#define ST_PRESS_LSB_PER_CELSIUS 480UL
d43a4115 GB	40	#define ST_PRESS_MILLI_CELSIUS_OFFSET 42500UL
d43a4115 GB	41
217494e5 DC	42	#define ST_PRESS_NUMBER_DATA_CHANNELS 1
217494e5 DC	43
217494e5	44	/* FULLSCALE */
d43a4115	45	#define ST_PRESS_FS_AVL_1100MB 1100
217494e5 DC	46	#define ST_PRESS_FS_AVL_1260MB 1260
217494e5 DC	47
93187840 DC	48	#define ST_PRESS_1_OUT_XL_ADDR 0x28
	49	#define ST_TEMP_1_OUT_L_ADDR 0x2b
	50
302fbd50 LJ	51	/* CUSTOM VALUES FOR LPS331AP SENSOR */
	52	#define ST_PRESS_LPS331AP_WAI_EXP 0xbb
	53	#define ST_PRESS_LPS331AP_ODR_ADDR 0x20
	54	#define ST_PRESS_LPS331AP_ODR_MASK 0x70
	55	#define ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL 0x01
	56	#define ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL 0x05
	57	#define ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL 0x06
	58	#define ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL 0x07
	59	#define ST_PRESS_LPS331AP_PW_ADDR 0x20
	60	#define ST_PRESS_LPS331AP_PW_MASK 0x80
	61	#define ST_PRESS_LPS331AP_FS_ADDR 0x23
	62	#define ST_PRESS_LPS331AP_FS_MASK 0x30
302fbd50 LJ	63	#define ST_PRESS_LPS331AP_BDU_ADDR 0x20
	64	#define ST_PRESS_LPS331AP_BDU_MASK 0x04
	65	#define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR 0x22
	66	#define ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK 0x04
	67	#define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK 0x20
a9fd053b LW	68	#define ST_PRESS_LPS331AP_IHL_IRQ_ADDR 0x22
a9fd053b LW	69	#define ST_PRESS_LPS331AP_IHL_IRQ_MASK 0x80
0e6f6871 LW	70	#define ST_PRESS_LPS331AP_OD_IRQ_ADDR 0x22
0e6f6871 LW	71	#define ST_PRESS_LPS331AP_OD_IRQ_MASK 0x40
302fbd50	72	#define ST_PRESS_LPS331AP_MULTIREAD_BIT true
217494e5	73
7885a8ce	74	/* CUSTOM VALUES FOR LPS001WP SENSOR */
d43a4115 GB	75
	76	/* LPS001WP pressure resolution */
	77	#define ST_PRESS_LPS001WP_LSB_PER_MBAR 16UL
	78	/* LPS001WP temperature resolution */
	79	#define ST_PRESS_LPS001WP_LSB_PER_CELSIUS 64UL
	80
7885a8ce LJ	81	#define ST_PRESS_LPS001WP_WAI_EXP 0xba
	82	#define ST_PRESS_LPS001WP_ODR_ADDR 0x20
	83	#define ST_PRESS_LPS001WP_ODR_MASK 0x30
	84	#define ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL 0x01
	85	#define ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL 0x02
	86	#define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL 0x03
	87	#define ST_PRESS_LPS001WP_PW_ADDR 0x20
	88	#define ST_PRESS_LPS001WP_PW_MASK 0x40
d43a4115 GB	89	#define ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN \
d43a4115 GB	90	(100000000UL / ST_PRESS_LPS001WP_LSB_PER_MBAR)
7885a8ce LJ	91	#define ST_PRESS_LPS001WP_BDU_ADDR 0x20
	92	#define ST_PRESS_LPS001WP_BDU_MASK 0x04
	93	#define ST_PRESS_LPS001WP_MULTIREAD_BIT true
	94	#define ST_PRESS_LPS001WP_OUT_L_ADDR 0x28
	95	#define ST_TEMP_LPS001WP_OUT_L_ADDR 0x2a
	96
93187840 DC	97	/* CUSTOM VALUES FOR LPS25H SENSOR */
	98	#define ST_PRESS_LPS25H_WAI_EXP 0xbd
	99	#define ST_PRESS_LPS25H_ODR_ADDR 0x20
	100	#define ST_PRESS_LPS25H_ODR_MASK 0x70
	101	#define ST_PRESS_LPS25H_ODR_AVL_1HZ_VAL 0x01
	102	#define ST_PRESS_LPS25H_ODR_AVL_7HZ_VAL 0x02
	103	#define ST_PRESS_LPS25H_ODR_AVL_13HZ_VAL 0x03
	104	#define ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL 0x04
	105	#define ST_PRESS_LPS25H_PW_ADDR 0x20
	106	#define ST_PRESS_LPS25H_PW_MASK 0x80
93187840 DC	107	#define ST_PRESS_LPS25H_BDU_ADDR 0x20
	108	#define ST_PRESS_LPS25H_BDU_MASK 0x04
	109	#define ST_PRESS_LPS25H_DRDY_IRQ_ADDR 0x23
	110	#define ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK 0x01
	111	#define ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK 0x10
a9fd053b LW	112	#define ST_PRESS_LPS25H_IHL_IRQ_ADDR 0x22
a9fd053b LW	113	#define ST_PRESS_LPS25H_IHL_IRQ_MASK 0x80
0e6f6871 LW	114	#define ST_PRESS_LPS25H_OD_IRQ_ADDR 0x22
0e6f6871 LW	115	#define ST_PRESS_LPS25H_OD_IRQ_MASK 0x40
93187840	116	#define ST_PRESS_LPS25H_MULTIREAD_BIT true
93187840 DC	117	#define ST_PRESS_LPS25H_OUT_XL_ADDR 0x28
	118	#define ST_TEMP_LPS25H_OUT_L_ADDR 0x2b
	119
	120	static const struct iio_chan_spec st_press_1_channels[] = {
2f5effcb LJ	121	{
	122	.type = IIO_PRESSURE,
	123	.channel2 = IIO_NO_MOD,
93187840	124	.address = ST_PRESS_1_OUT_XL_ADDR,
2f5effcb LJ	125	.scan_index = ST_SENSORS_SCAN_X,
	126	.scan_type = {
	127	.sign = 'u',
	128	.realbits = 24,
	129	.storagebits = 24,
	130	.endianness = IIO_LE,
	131	},
	132	.info_mask_separate =
217494e5	133	BIT(IIO_CHAN_INFO_RAW) \| BIT(IIO_CHAN_INFO_SCALE),
2f5effcb LJ	134	.modified = 0,
	135	},
	136	{
	137	.type = IIO_TEMP,
	138	.channel2 = IIO_NO_MOD,
93187840	139	.address = ST_TEMP_1_OUT_L_ADDR,
2f5effcb LJ	140	.scan_index = -1,
	141	.scan_type = {
	142	.sign = 'u',
	143	.realbits = 16,
	144	.storagebits = 16,
	145	.endianness = IIO_LE,
	146	},
	147	.info_mask_separate =
	148	BIT(IIO_CHAN_INFO_RAW) \|
	149	BIT(IIO_CHAN_INFO_SCALE) \|
	150	BIT(IIO_CHAN_INFO_OFFSET),
	151	.modified = 0,
	152	},
217494e5 DC	153	IIO_CHAN_SOFT_TIMESTAMP(1)
	154	};
	155
7885a8ce LJ	156	static const struct iio_chan_spec st_press_lps001wp_channels[] = {
	157	{
	158	.type = IIO_PRESSURE,
	159	.channel2 = IIO_NO_MOD,
	160	.address = ST_PRESS_LPS001WP_OUT_L_ADDR,
	161	.scan_index = ST_SENSORS_SCAN_X,
	162	.scan_type = {
	163	.sign = 'u',
	164	.realbits = 16,
	165	.storagebits = 16,
	166	.endianness = IIO_LE,
	167	},
d43a4115 GB	168	.info_mask_separate =
	169	BIT(IIO_CHAN_INFO_RAW) \|
	170	BIT(IIO_CHAN_INFO_SCALE),
7885a8ce LJ	171	.modified = 0,
	172	},
	173	{
	174	.type = IIO_TEMP,
	175	.channel2 = IIO_NO_MOD,
	176	.address = ST_TEMP_LPS001WP_OUT_L_ADDR,
	177	.scan_index = -1,
	178	.scan_type = {
	179	.sign = 'u',
	180	.realbits = 16,
	181	.storagebits = 16,
	182	.endianness = IIO_LE,
	183	},
	184	.info_mask_separate =
	185	BIT(IIO_CHAN_INFO_RAW) \|
d43a4115	186	BIT(IIO_CHAN_INFO_SCALE),
7885a8ce LJ	187	.modified = 0,
	188	},
	189	IIO_CHAN_SOFT_TIMESTAMP(1)
	190	};
	191
a7ee8839	192	static const struct st_sensor_settings st_press_sensors_settings[] = {
217494e5	193	{
302fbd50	194	.wai = ST_PRESS_LPS331AP_WAI_EXP,
bc27381e	195	.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
217494e5 DC	196	.sensors_supported = {
	197	[0] = LPS331AP_PRESS_DEV_NAME,
	198	},
93187840 DC	199	.ch = (struct iio_chan_spec *)st_press_1_channels,
93187840 DC	200	.num_ch = ARRAY_SIZE(st_press_1_channels),
217494e5	201	.odr = {
302fbd50 LJ	202	.addr = ST_PRESS_LPS331AP_ODR_ADDR,
302fbd50 LJ	203	.mask = ST_PRESS_LPS331AP_ODR_MASK,
217494e5	204	.odr_avl = {
302fbd50 LJ	205	{ 1, ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL, },
	206	{ 7, ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL, },
	207	{ 13, ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL, },
	208	{ 25, ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL, },
217494e5 DC	209	},
	210	},
	211	.pw = {
302fbd50 LJ	212	.addr = ST_PRESS_LPS331AP_PW_ADDR,
302fbd50 LJ	213	.mask = ST_PRESS_LPS331AP_PW_MASK,
217494e5 DC	214	.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
	215	.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
	216	},
	217	.fs = {
302fbd50 LJ	218	.addr = ST_PRESS_LPS331AP_FS_ADDR,
302fbd50 LJ	219	.mask = ST_PRESS_LPS331AP_FS_MASK,
217494e5	220	.fs_avl = {
d43a4115 GB	221	/*
	222	* Pressure and temperature sensitivity values
	223	* as defined in table 3 of LPS331AP datasheet.
	224	*/
217494e5 DC	225	[0] = {
217494e5 DC	226	.num = ST_PRESS_FS_AVL_1260MB,
d43a4115 GB	227	.gain = ST_PRESS_KPASCAL_NANO_SCALE,
d43a4115 GB	228	.gain2 = ST_PRESS_LSB_PER_CELSIUS,
217494e5 DC	229	},
	230	},
	231	},
	232	.bdu = {
302fbd50 LJ	233	.addr = ST_PRESS_LPS331AP_BDU_ADDR,
302fbd50 LJ	234	.mask = ST_PRESS_LPS331AP_BDU_MASK,
217494e5 DC	235	},
217494e5 DC	236	.drdy_irq = {
302fbd50 LJ	237	.addr = ST_PRESS_LPS331AP_DRDY_IRQ_ADDR,
	238	.mask_int1 = ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK,
	239	.mask_int2 = ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK,
a9fd053b LW	240	.addr_ihl = ST_PRESS_LPS331AP_IHL_IRQ_ADDR,
a9fd053b LW	241	.mask_ihl = ST_PRESS_LPS331AP_IHL_IRQ_MASK,
0e6f6871 LW	242	.addr_od = ST_PRESS_LPS331AP_OD_IRQ_ADDR,
0e6f6871 LW	243	.mask_od = ST_PRESS_LPS331AP_OD_IRQ_MASK,
97865fe4	244	.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
217494e5	245	},
302fbd50	246	.multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT,
217494e5 DC	247	.bootime = 2,
217494e5 DC	248	},
7885a8ce LJ	249	{
7885a8ce LJ	250	.wai = ST_PRESS_LPS001WP_WAI_EXP,
bc27381e	251	.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
7885a8ce LJ	252	.sensors_supported = {
	253	[0] = LPS001WP_PRESS_DEV_NAME,
	254	},
	255	.ch = (struct iio_chan_spec *)st_press_lps001wp_channels,
	256	.num_ch = ARRAY_SIZE(st_press_lps001wp_channels),
	257	.odr = {
	258	.addr = ST_PRESS_LPS001WP_ODR_ADDR,
	259	.mask = ST_PRESS_LPS001WP_ODR_MASK,
	260	.odr_avl = {
	261	{ 1, ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL, },
	262	{ 7, ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL, },
	263	{ 13, ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL, },
	264	},
	265	},
	266	.pw = {
	267	.addr = ST_PRESS_LPS001WP_PW_ADDR,
	268	.mask = ST_PRESS_LPS001WP_PW_MASK,
	269	.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
	270	.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
	271	},
	272	.fs = {
d43a4115 GB	273	.fs_avl = {
	274	/*
	275	* Pressure and temperature resolution values
	276	* as defined in table 3 of LPS001WP datasheet.
	277	*/
	278	[0] = {
	279	.num = ST_PRESS_FS_AVL_1100MB,
	280	.gain = ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN,
	281	.gain2 = ST_PRESS_LPS001WP_LSB_PER_CELSIUS,
	282	},
	283	},
7885a8ce LJ	284	},
	285	.bdu = {
	286	.addr = ST_PRESS_LPS001WP_BDU_ADDR,
	287	.mask = ST_PRESS_LPS001WP_BDU_MASK,
	288	},
	289	.drdy_irq = {
	290	.addr = 0,
	291	},
	292	.multi_read_bit = ST_PRESS_LPS001WP_MULTIREAD_BIT,
	293	.bootime = 2,
	294	},
93187840 DC	295	{
93187840 DC	296	.wai = ST_PRESS_LPS25H_WAI_EXP,
bc27381e	297	.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
93187840 DC	298	.sensors_supported = {
	299	[0] = LPS25H_PRESS_DEV_NAME,
	300	},
	301	.ch = (struct iio_chan_spec *)st_press_1_channels,
	302	.num_ch = ARRAY_SIZE(st_press_1_channels),
	303	.odr = {
	304	.addr = ST_PRESS_LPS25H_ODR_ADDR,
	305	.mask = ST_PRESS_LPS25H_ODR_MASK,
	306	.odr_avl = {
	307	{ 1, ST_PRESS_LPS25H_ODR_AVL_1HZ_VAL, },
	308	{ 7, ST_PRESS_LPS25H_ODR_AVL_7HZ_VAL, },
	309	{ 13, ST_PRESS_LPS25H_ODR_AVL_13HZ_VAL, },
	310	{ 25, ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL, },
	311	},
	312	},
	313	.pw = {
	314	.addr = ST_PRESS_LPS25H_PW_ADDR,
	315	.mask = ST_PRESS_LPS25H_PW_MASK,
	316	.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
	317	.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
	318	},
	319	.fs = {
93187840	320	.fs_avl = {
d43a4115 GB	321	/*
	322	* Pressure and temperature sensitivity values
	323	* as defined in table 3 of LPS25H datasheet.
	324	*/
93187840 DC	325	[0] = {
93187840 DC	326	.num = ST_PRESS_FS_AVL_1260MB,
d43a4115 GB	327	.gain = ST_PRESS_KPASCAL_NANO_SCALE,
d43a4115 GB	328	.gain2 = ST_PRESS_LSB_PER_CELSIUS,
93187840 DC	329	},
	330	},
	331	},
	332	.bdu = {
	333	.addr = ST_PRESS_LPS25H_BDU_ADDR,
	334	.mask = ST_PRESS_LPS25H_BDU_MASK,
	335	},
	336	.drdy_irq = {
	337	.addr = ST_PRESS_LPS25H_DRDY_IRQ_ADDR,
	338	.mask_int1 = ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK,
	339	.mask_int2 = ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK,
a9fd053b LW	340	.addr_ihl = ST_PRESS_LPS25H_IHL_IRQ_ADDR,
a9fd053b LW	341	.mask_ihl = ST_PRESS_LPS25H_IHL_IRQ_MASK,
0e6f6871 LW	342	.addr_od = ST_PRESS_LPS25H_OD_IRQ_ADDR,
0e6f6871 LW	343	.mask_od = ST_PRESS_LPS25H_OD_IRQ_MASK,
97865fe4	344	.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
93187840 DC	345	},
	346	.multi_read_bit = ST_PRESS_LPS25H_MULTIREAD_BIT,
	347	.bootime = 2,
	348	},
217494e5 DC	349	};
217494e5 DC	350
2d239c9e JC	351	static int st_press_write_raw(struct iio_dev *indio_dev,
	352	struct iio_chan_spec const *ch,
	353	int val,
	354	int val2,
	355	long mask)
	356	{
	357	int err;
	358
	359	switch (mask) {
	360	case IIO_CHAN_INFO_SAMP_FREQ:
	361	if (val2)
	362	return -EINVAL;
	363	mutex_lock(&indio_dev->mlock);
	364	err = st_sensors_set_odr(indio_dev, val);
	365	mutex_unlock(&indio_dev->mlock);
	366	return err;
	367	default:
	368	return -EINVAL;
	369	}
	370	}
	371
217494e5 DC	372	static int st_press_read_raw(struct iio_dev *indio_dev,
	373	struct iio_chan_spec const ch, int val,
	374	int *val2, long mask)
	375	{
	376	int err;
a1dcf429	377	struct st_sensor_data *press_data = iio_priv(indio_dev);
217494e5 DC	378
	379	switch (mask) {
	380	case IIO_CHAN_INFO_RAW:
	381	err = st_sensors_read_info_raw(indio_dev, ch, val);
	382	if (err < 0)
	383	goto read_error;
	384
	385	return IIO_VAL_INT;
	386	case IIO_CHAN_INFO_SCALE:
217494e5 DC	387	switch (ch->type) {
217494e5 DC	388	case IIO_PRESSURE:
d43a4115	389	*val = 0;
a1dcf429	390	*val2 = press_data->current_fullscale->gain;
d43a4115	391	return IIO_VAL_INT_PLUS_NANO;
217494e5	392	case IIO_TEMP:
d43a4115	393	*val = MCELSIUS_PER_CELSIUS;
a1dcf429	394	*val2 = press_data->current_fullscale->gain2;
d43a4115	395	return IIO_VAL_FRACTIONAL;
217494e5 DC	396	default:
	397	err = -EINVAL;
	398	goto read_error;
	399	}
	400
217494e5 DC	401	case IIO_CHAN_INFO_OFFSET:
	402	switch (ch->type) {
	403	case IIO_TEMP:
d43a4115 GB	404	val = ST_PRESS_MILLI_CELSIUS_OFFSET
	405	press_data->current_fullscale->gain2;
	406	*val2 = MCELSIUS_PER_CELSIUS;
217494e5 DC	407	break;
	408	default:
	409	err = -EINVAL;
	410	goto read_error;
	411	}
	412
	413	return IIO_VAL_FRACTIONAL;
2d239c9e	414	case IIO_CHAN_INFO_SAMP_FREQ:
a1dcf429	415	*val = press_data->odr;
2d239c9e	416	return IIO_VAL_INT;
217494e5 DC	417	default:
	418	return -EINVAL;
	419	}
	420
	421	read_error:
	422	return err;
	423	}
	424
217494e5 DC	425	static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL();
	426
	427	static struct attribute *st_press_attributes[] = {
	428	&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
217494e5 DC	429	NULL,
	430	};
	431
	432	static const struct attribute_group st_press_attribute_group = {
	433	.attrs = st_press_attributes,
	434	};
	435
	436	static const struct iio_info press_info = {
	437	.driver_module = THIS_MODULE,
	438	.attrs = &st_press_attribute_group,
	439	.read_raw = &st_press_read_raw,
2d239c9e	440	.write_raw = &st_press_write_raw,
a0175b9c	441	.debugfs_reg_access = &st_sensors_debugfs_reg_access,
217494e5 DC	442	};
	443
	444	#ifdef CONFIG_IIO_TRIGGER
	445	static const struct iio_trigger_ops st_press_trigger_ops = {
	446	.owner = THIS_MODULE,
	447	.set_trigger_state = ST_PRESS_TRIGGER_SET_STATE,
65925b65	448	.validate_device = st_sensors_validate_device,
217494e5 DC	449	};
	450	#define ST_PRESS_TRIGGER_OPS (&st_press_trigger_ops)
	451	#else
	452	#define ST_PRESS_TRIGGER_OPS NULL
	453	#endif
	454
0baa3fc1	455	int st_press_common_probe(struct iio_dev *indio_dev)
217494e5	456	{
a1dcf429 DC	457	struct st_sensor_data *press_data = iio_priv(indio_dev);
a1dcf429 DC	458	int irq = press_data->get_irq_data_ready(indio_dev);
a6cc5b25	459	int err;
217494e5 DC	460
	461	indio_dev->modes = INDIO_DIRECT_MODE;
	462	indio_dev->info = &press_info;
8e71c04f	463	mutex_init(&press_data->tb.buf_lock);
217494e5	464
ea7e586b	465	st_sensors_power_enable(indio_dev);
77448761	466
217494e5	467	err = st_sensors_check_device_support(indio_dev,
a7ee8839 DC	468	ARRAY_SIZE(st_press_sensors_settings),
a7ee8839 DC	469	st_press_sensors_settings);
217494e5	470	if (err < 0)
a6cc5b25	471	return err;
217494e5	472
a1dcf429 DC	473	press_data->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS;
	474	press_data->multiread_bit = press_data->sensor_settings->multi_read_bit;
	475	indio_dev->channels = press_data->sensor_settings->ch;
	476	indio_dev->num_channels = press_data->sensor_settings->num_ch;
217494e5	477
a1dcf429 DC	478	if (press_data->sensor_settings->fs.addr != 0)
	479	press_data->current_fullscale =
	480	(struct st_sensor_fullscale_avl *)
	481	&press_data->sensor_settings->fs.fs_avl[0];
362f2f86	482
a1dcf429	483	press_data->odr = press_data->sensor_settings->odr.odr_avl[0].hz;
217494e5	484
38d1c6a9	485	/* Some devices don't support a data ready pin. */
a1dcf429 DC	486	if (!press_data->dev->platform_data &&
	487	press_data->sensor_settings->drdy_irq.addr)
	488	press_data->dev->platform_data =
23cde4d6 DC	489	(struct st_sensors_platform_data *)&default_press_pdata;
23cde4d6 DC	490
a1dcf429	491	err = st_sensors_init_sensor(indio_dev, press_data->dev->platform_data);
217494e5	492	if (err < 0)
a6cc5b25	493	return err;
217494e5	494
7a137c9c DC	495	err = st_press_allocate_ring(indio_dev);
	496	if (err < 0)
	497	return err;
217494e5	498
7a137c9c	499	if (irq > 0) {
217494e5	500	err = st_sensors_allocate_trigger(indio_dev,
a6cc5b25	501	ST_PRESS_TRIGGER_OPS);
217494e5 DC	502	if (err < 0)
	503	goto st_press_probe_trigger_error;
	504	}
	505
	506	err = iio_device_register(indio_dev);
	507	if (err)
	508	goto st_press_device_register_error;
	509
4f544ced LW	510	dev_info(&indio_dev->dev, "registered pressure sensor %s\n",
	511	indio_dev->name);
	512
217494e5 DC	513	return err;
	514
	515	st_press_device_register_error:
a6cc5b25	516	if (irq > 0)
217494e5 DC	517	st_sensors_deallocate_trigger(indio_dev);
217494e5 DC	518	st_press_probe_trigger_error:
7a137c9c	519	st_press_deallocate_ring(indio_dev);
a6cc5b25	520
217494e5 DC	521	return err;
	522	}
	523	EXPORT_SYMBOL(st_press_common_probe);
	524
	525	void st_press_common_remove(struct iio_dev *indio_dev)
	526	{
a1dcf429	527	struct st_sensor_data *press_data = iio_priv(indio_dev);
217494e5	528
ea7e586b	529	st_sensors_power_disable(indio_dev);
77448761	530
217494e5	531	iio_device_unregister(indio_dev);
a1dcf429	532	if (press_data->get_irq_data_ready(indio_dev) > 0)
217494e5	533	st_sensors_deallocate_trigger(indio_dev);
7a137c9c DC	534
7a137c9c DC	535	st_press_deallocate_ring(indio_dev);
217494e5 DC	536	}
	537	EXPORT_SYMBOL(st_press_common_remove);
	538
	539	MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
	540	MODULE_DESCRIPTION("STMicroelectronics pressures driver");
	541	MODULE_LICENSE("GPL v2");