staging:iio:imu remove adis16300 driver.

Support is now provided by the unified adis16400 driver.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/iio/imu/Kconfig

@@ -3,15 +3,6 @@
 #
 comment "Inertial measurement units"
 
-config ADIS16300
-	tristate "Analog Devices ADIS16300 IMU SPI driver"
-	depends on SPI
-	select IIO_SW_RING if IIO_RING_BUFFER
-	select IIO_TRIGGER if IIO_RING_BUFFER
-	help
-	  Say yes here to build support for Analog Devices adis16300 four degrees
-	  of freedom inertial sensor.
-
 config ADIS16400
 	tristate "Analog Devices ADIS16400 and similar IMU SPI driver"
 	depends on SPI

drivers/staging/iio/imu/Makefile

@@ -2,10 +2,6 @@
 # Makefile for Inertial Measurement Units
 #
 
-adis16300-y             := adis16300_core.o
-adis16300-$(CONFIG_IIO_RING_BUFFER) += adis16300_ring.o adis16300_trigger.o
-obj-$(CONFIG_ADIS16300) += adis16300.o
-
 adis16400-y             := adis16400_core.o
 adis16400-$(CONFIG_IIO_RING_BUFFER) += adis16400_ring.o adis16400_trigger.o
 obj-$(CONFIG_ADIS16400) += adis16400.o

drivers/staging/iio/imu/adis16300.h

@@ -1,184 +0,0 @@
-#ifndef SPI_ADIS16300_H_
-#define SPI_ADIS16300_H_
-
-#define ADIS16300_STARTUP_DELAY	220 /* ms */
-
-#define ADIS16300_READ_REG(a)    a
-#define ADIS16300_WRITE_REG(a) ((a) | 0x80)
-
-#define ADIS16300_FLASH_CNT  0x00 /* Flash memory write count */
-#define ADIS16300_SUPPLY_OUT 0x02 /* Power supply measurement */
-#define ADIS16300_XGYRO_OUT 0x04 /* X-axis gyroscope output */
-#define ADIS16300_XACCL_OUT 0x0A /* X-axis accelerometer output */
-#define ADIS16300_YACCL_OUT 0x0C /* Y-axis accelerometer output */
-#define ADIS16300_ZACCL_OUT 0x0E /* Z-axis accelerometer output */
-#define ADIS16300_TEMP_OUT  0x10 /* Temperature output */
-#define ADIS16300_XINCLI_OUT 0x12 /* X-axis inclinometer output measurement */
-#define ADIS16300_YINCLI_OUT 0x14 /* Y-axis inclinometer output measurement */
-#define ADIS16300_AUX_ADC   0x16 /* Auxiliary ADC measurement */
-
-/* Calibration parameters */
-#define ADIS16300_XGYRO_OFF 0x1A /* X-axis gyroscope bias offset factor */
-#define ADIS16300_XACCL_OFF 0x20 /* X-axis acceleration bias offset factor */
-#define ADIS16300_YACCL_OFF 0x22 /* Y-axis acceleration bias offset factor */
-#define ADIS16300_ZACCL_OFF 0x24 /* Z-axis acceleration bias offset factor */
-
-#define ADIS16300_GPIO_CTRL 0x32 /* Auxiliary digital input/output control */
-#define ADIS16300_MSC_CTRL  0x34 /* Miscellaneous control */
-#define ADIS16300_SMPL_PRD  0x36 /* Internal sample period (rate) control */
-#define ADIS16300_SENS_AVG  0x38 /* Dynamic range and digital filter control */
-#define ADIS16300_SLP_CNT   0x3A /* Sleep mode control */
-#define ADIS16300_DIAG_STAT 0x3C /* System status */
-
-/* Alarm functions */
-#define ADIS16300_GLOB_CMD  0x3E /* System command */
-#define ADIS16300_ALM_MAG1  0x26 /* Alarm 1 amplitude threshold */
-#define ADIS16300_ALM_MAG2  0x28 /* Alarm 2 amplitude threshold */
-#define ADIS16300_ALM_SMPL1 0x2A /* Alarm 1 sample size */
-#define ADIS16300_ALM_SMPL2 0x2C /* Alarm 2 sample size */
-#define ADIS16300_ALM_CTRL  0x2E /* Alarm control */
-#define ADIS16300_AUX_DAC   0x30 /* Auxiliary DAC data */
-
-#define ADIS16300_ERROR_ACTIVE			(1<<14)
-#define ADIS16300_NEW_DATA			(1<<15)
-
-/* MSC_CTRL */
-#define ADIS16300_MSC_CTRL_MEM_TEST		(1<<11)
-#define ADIS16300_MSC_CTRL_INT_SELF_TEST	(1<<10)
-#define ADIS16300_MSC_CTRL_NEG_SELF_TEST	(1<<9)
-#define ADIS16300_MSC_CTRL_POS_SELF_TEST	(1<<8)
-#define ADIS16300_MSC_CTRL_GYRO_BIAS		(1<<7)
-#define ADIS16300_MSC_CTRL_ACCL_ALIGN		(1<<6)
-#define ADIS16300_MSC_CTRL_DATA_RDY_EN		(1<<2)
-#define ADIS16300_MSC_CTRL_DATA_RDY_POL_HIGH	(1<<1)
-#define ADIS16300_MSC_CTRL_DATA_RDY_DIO2	(1<<0)
-
-/* SMPL_PRD */
-#define ADIS16300_SMPL_PRD_TIME_BASE	(1<<7)
-#define ADIS16300_SMPL_PRD_DIV_MASK	0x7F
-
-/* DIAG_STAT */
-#define ADIS16300_DIAG_STAT_ZACCL_FAIL	(1<<15)
-#define ADIS16300_DIAG_STAT_YACCL_FAIL	(1<<14)
-#define ADIS16300_DIAG_STAT_XACCL_FAIL	(1<<13)
-#define ADIS16300_DIAG_STAT_XGYRO_FAIL	(1<<10)
-#define ADIS16300_DIAG_STAT_ALARM2	(1<<9)
-#define ADIS16300_DIAG_STAT_ALARM1	(1<<8)
-#define ADIS16300_DIAG_STAT_FLASH_CHK	(1<<6)
-#define ADIS16300_DIAG_STAT_SELF_TEST	(1<<5)
-#define ADIS16300_DIAG_STAT_OVERFLOW	(1<<4)
-#define ADIS16300_DIAG_STAT_SPI_FAIL	(1<<3)
-#define ADIS16300_DIAG_STAT_FLASH_UPT	(1<<2)
-#define ADIS16300_DIAG_STAT_POWER_HIGH	(1<<1)
-#define ADIS16300_DIAG_STAT_POWER_LOW	(1<<0)
-
-/* GLOB_CMD */
-#define ADIS16300_GLOB_CMD_SW_RESET	(1<<7)
-#define ADIS16300_GLOB_CMD_P_AUTO_NULL	(1<<4)
-#define ADIS16300_GLOB_CMD_FLASH_UPD	(1<<3)
-#define ADIS16300_GLOB_CMD_DAC_LATCH	(1<<2)
-#define ADIS16300_GLOB_CMD_FAC_CALIB	(1<<1)
-#define ADIS16300_GLOB_CMD_AUTO_NULL	(1<<0)
-
-/* SLP_CNT */
-#define ADIS16300_SLP_CNT_POWER_OFF	(1<<8)
-
-#define ADIS16300_MAX_TX 18
-#define ADIS16300_MAX_RX 18
-
-#define ADIS16300_SPI_SLOW	(u32)(300 * 1000)
-#define ADIS16300_SPI_BURST	(u32)(1000 * 1000)
-#define ADIS16300_SPI_FAST	(u32)(2000 * 1000)
-
-/**
- * struct adis16300_state - device instance specific data
- * @us:			actual spi_device
- * @work_trigger_to_ring: bh for triggered event handling
- * @inter:		used to check if new interrupt has been triggered
- * @last_timestamp:	passing timestamp from th to bh of interrupt handler
- * @indio_dev:		industrial I/O device structure
- * @trig:		data ready trigger registered with iio
- * @tx:			transmit buffer
- * @rx:			receive buffer
- * @buf_lock:		mutex to protect tx and rx
- **/
-struct adis16300_state {
-	struct spi_device		*us;
-	struct work_struct		work_trigger_to_ring;
-	s64				last_timestamp;
-	struct iio_dev			*indio_dev;
-	struct iio_trigger		*trig;
-	u8				*tx;
-	u8				*rx;
-	struct mutex			buf_lock;
-};
-
-int adis16300_set_irq(struct device *dev, bool enable);
-
-#ifdef CONFIG_IIO_RING_BUFFER
-/* At the moment triggers are only used for ring buffer
- * filling. This may change!
- */
-
-#define ADIS16300_SCAN_SUPPLY	0
-#define ADIS16300_SCAN_GYRO_X	1
-#define ADIS16300_SCAN_ACC_X	2
-#define ADIS16300_SCAN_ACC_Y	3
-#define ADIS16300_SCAN_ACC_Z	4
-#define ADIS16300_SCAN_TEMP	5
-#define ADIS16300_SCAN_ADC_0	6
-#define ADIS16300_SCAN_INCLI_X	7
-#define ADIS16300_SCAN_INCLI_Y	8
-
-void adis16300_remove_trigger(struct iio_dev *indio_dev);
-int adis16300_probe_trigger(struct iio_dev *indio_dev);
-
-ssize_t adis16300_read_data_from_ring(struct device *dev,
-				      struct device_attribute *attr,
-				      char *buf);
-
-
-int adis16300_configure_ring(struct iio_dev *indio_dev);
-void adis16300_unconfigure_ring(struct iio_dev *indio_dev);
-
-int adis16300_initialize_ring(struct iio_ring_buffer *ring);
-void adis16300_uninitialize_ring(struct iio_ring_buffer *ring);
-#else /* CONFIG_IIO_RING_BUFFER */
-
-static inline void adis16300_remove_trigger(struct iio_dev *indio_dev)
-{
-}
-
-static inline int adis16300_probe_trigger(struct iio_dev *indio_dev)
-{
-	return 0;
-}
-
-static inline ssize_t
-adis16300_read_data_from_ring(struct device *dev,
-			      struct device_attribute *attr,
-			      char *buf)
-{
-	return 0;
-}
-
-static int adis16300_configure_ring(struct iio_dev *indio_dev)
-{
-	return 0;
-}
-
-static inline void adis16300_unconfigure_ring(struct iio_dev *indio_dev)
-{
-}
-
-static inline int adis16300_initialize_ring(struct iio_ring_buffer *ring)
-{
-	return 0;
-}
-
-static inline void adis16300_uninitialize_ring(struct iio_ring_buffer *ring)
-{
-}
-
-#endif /* CONFIG_IIO_RING_BUFFER */
-#endif /* SPI_ADIS16300_H_ */

drivers/staging/iio/imu/adis16300_core.c

@@ -1,732 +0,0 @@
-/*
- * ADIS16300 Four Degrees of Freedom Inertial Sensor Driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/gpio.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-
-#include "../iio.h"
-#include "../sysfs.h"
-#include "../ring_generic.h"
-#include "../accel/accel.h"
-#include "../accel/inclinometer.h"
-#include "../gyro/gyro.h"
-#include "../adc/adc.h"
-
-#include "adis16300.h"
-
-#define DRIVER_NAME		"adis16300"
-
-static int adis16300_check_status(struct device *dev);
-
-/**
- * adis16300_spi_write_reg_8() - write single byte to a register
- * @dev: device associated with child of actual device (iio_dev or iio_trig)
- * @reg_address: the address of the register to be written
- * @val: the value to write
- **/
-static int adis16300_spi_write_reg_8(struct device *dev,
-		u8 reg_address,
-		u8 val)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct adis16300_state *st = iio_dev_get_devdata(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADIS16300_WRITE_REG(reg_address);
-	st->tx[1] = val;
-
-	ret = spi_write(st->us, st->tx, 2);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-/**
- * adis16300_spi_write_reg_16() - write 2 bytes to a pair of registers
- * @dev: device associated with child of actual device (iio_dev or iio_trig)
- * @reg_address: the address of the lower of the two registers. Second register
- *               is assumed to have address one greater.
- * @val: value to be written
- **/
-static int adis16300_spi_write_reg_16(struct device *dev,
-		u8 lower_reg_address,
-		u16 value)
-{
-	int ret;
-	struct spi_message msg;
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct adis16300_state *st = iio_dev_get_devdata(indio_dev);
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 2,
-			.cs_change = 1,
-			.delay_usecs = 75,
-		}, {
-			.tx_buf = st->tx + 2,
-			.bits_per_word = 8,
-			.len = 2,
-			.cs_change = 1,
-			.delay_usecs = 75,
-		},
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADIS16300_WRITE_REG(lower_reg_address);
-	st->tx[1] = value & 0xFF;
-	st->tx[2] = ADIS16300_WRITE_REG(lower_reg_address + 1);
-	st->tx[3] = (value >> 8) & 0xFF;
-
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->us, &msg);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-/**
- * adis16300_spi_read_reg_16() - read 2 bytes from a 16-bit register
- * @dev: device associated with child of actual device (iio_dev or iio_trig)
- * @reg_address: the address of the lower of the two registers. Second register
- *               is assumed to have address one greater.
- * @val: somewhere to pass back the value read
- **/
-static int adis16300_spi_read_reg_16(struct device *dev,
-		u8 lower_reg_address,
-		u16 *val)
-{
-	struct spi_message msg;
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct adis16300_state *st = iio_dev_get_devdata(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 2,
-			.cs_change = 1,
-			.delay_usecs = 75,
-		}, {
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 2,
-			.cs_change = 1,
-			.delay_usecs = 75,
-		},
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADIS16300_READ_REG(lower_reg_address);
-	st->tx[1] = 0;
-	st->tx[2] = 0;
-	st->tx[3] = 0;
-
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->us, &msg);
-	if (ret) {
-		dev_err(&st->us->dev,
-			"problem when reading 16 bit register 0x%02X",
-			lower_reg_address);
-		goto error_ret;
-	}
-	*val = (st->rx[0] << 8) | st->rx[1];
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static ssize_t adis16300_spi_read_signed(struct device *dev,
-		struct device_attribute *attr,
-		char *buf,
-		unsigned bits)
-{
-	int ret;
-	s16 val = 0;
-	unsigned shift = 16 - bits;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = adis16300_spi_read_reg_16(dev, this_attr->address, (u16 *)&val);
-	if (ret)
-		return ret;
-
-	if (val & ADIS16300_ERROR_ACTIVE)
-		adis16300_check_status(dev);
-	val = ((s16)(val << shift) >> shift);
-	return sprintf(buf, "%d\n", val);
-}
-
-static ssize_t adis16300_read_12bit_unsigned(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u16 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = adis16300_spi_read_reg_16(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	if (val & ADIS16300_ERROR_ACTIVE)
-		adis16300_check_status(dev);
-
-	return sprintf(buf, "%u\n", val & 0x0FFF);
-}
-
-static ssize_t adis16300_read_14bit_unsigned(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u16 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = adis16300_spi_read_reg_16(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	if (val & ADIS16300_ERROR_ACTIVE)
-		adis16300_check_status(dev);
-
-	return sprintf(buf, "%u\n", val & 0x3FFF);
-}
-
-static ssize_t adis16300_read_14bit_signed(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	ssize_t ret;
-
-	/* Take the iio_dev status lock */
-	mutex_lock(&indio_dev->mlock);
-	ret =  adis16300_spi_read_signed(dev, attr, buf, 14);
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret;
-}
-
-static ssize_t adis16300_read_12bit_signed(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	ssize_t ret;
-
-	/* Take the iio_dev status lock */
-	mutex_lock(&indio_dev->mlock);
-	ret =  adis16300_spi_read_signed(dev, attr, buf, 12);
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret;
-}
-
-static ssize_t adis16300_read_13bit_signed(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	ssize_t ret;
-
-	/* Take the iio_dev status lock */
-	mutex_lock(&indio_dev->mlock);
-	ret =  adis16300_spi_read_signed(dev, attr, buf, 13);
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret;
-}
-
-static ssize_t adis16300_write_16bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	long val;
-
-	ret = strict_strtol(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = adis16300_spi_write_reg_16(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static ssize_t adis16300_read_frequency(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret, len = 0;
-	u16 t;
-	int sps;
-	ret = adis16300_spi_read_reg_16(dev,
-			ADIS16300_SMPL_PRD,
-			&t);
-	if (ret)
-		return ret;
-	sps =  (t & ADIS16300_SMPL_PRD_TIME_BASE) ? 53 : 1638;
-	sps /= (t & ADIS16300_SMPL_PRD_DIV_MASK) + 1;
-	len = sprintf(buf, "%d SPS\n", sps);
-	return len;
-}
-
-static ssize_t adis16300_write_frequency(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct adis16300_state *st = iio_dev_get_devdata(indio_dev);
-	long val;
-	int ret;
-	u8 t;
-
-	ret = strict_strtol(buf, 10, &val);
-	if (ret)
-		return ret;
-
-	mutex_lock(&indio_dev->mlock);
-
-	t = (1638 / val);
-	if (t > 0)
-		t--;
-	t &= ADIS16300_SMPL_PRD_DIV_MASK;
-	if ((t & ADIS16300_SMPL_PRD_DIV_MASK) >= 0x0A)
-		st->us->max_speed_hz = ADIS16300_SPI_SLOW;
-	else
-		st->us->max_speed_hz = ADIS16300_SPI_FAST;
-
-	ret = adis16300_spi_write_reg_8(dev,
-			ADIS16300_SMPL_PRD,
-			t);
-
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
-static int adis16300_reset(struct device *dev)
-{
-	int ret;
-	ret = adis16300_spi_write_reg_8(dev,
-			ADIS16300_GLOB_CMD,
-			ADIS16300_GLOB_CMD_SW_RESET);
-	if (ret)
-		dev_err(dev, "problem resetting device");
-
-	return ret;
-}
-
-static ssize_t adis16300_write_reset(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf, size_t len)
-{
-	if (len < 1)
-		return -1;
-	switch (buf[0]) {
-	case '1':
-	case 'y':
-	case 'Y':
-		return adis16300_reset(dev);
-	}
-	return -1;
-}
-
-int adis16300_set_irq(struct device *dev, bool enable)
-{
-	int ret;
-	u16 msc;
-	ret = adis16300_spi_read_reg_16(dev, ADIS16300_MSC_CTRL, &msc);
-	if (ret)
-		goto error_ret;
-
-	msc |= ADIS16300_MSC_CTRL_DATA_RDY_POL_HIGH;
-	msc &= ~ADIS16300_MSC_CTRL_DATA_RDY_DIO2;
-	if (enable)
-		msc |= ADIS16300_MSC_CTRL_DATA_RDY_EN;
-	else
-		msc &= ~ADIS16300_MSC_CTRL_DATA_RDY_EN;
-
-	ret = adis16300_spi_write_reg_16(dev, ADIS16300_MSC_CTRL, msc);
-	if (ret)
-		goto error_ret;
-
-error_ret:
-	return ret;
-}
-
-/* Power down the device */
-static int adis16300_stop_device(struct device *dev)
-{
-	int ret;
-	u16 val = ADIS16300_SLP_CNT_POWER_OFF;
-
-	ret = adis16300_spi_write_reg_16(dev, ADIS16300_SLP_CNT, val);
-	if (ret)
-		dev_err(dev, "problem with turning device off: SLP_CNT");
-
-	return ret;
-}
-
-static int adis16300_self_test(struct device *dev)
-{
-	int ret;
-	ret = adis16300_spi_write_reg_16(dev,
-			ADIS16300_MSC_CTRL,
-			ADIS16300_MSC_CTRL_MEM_TEST);
-	if (ret) {
-		dev_err(dev, "problem starting self test");
-		goto err_ret;
-	}
-
-	adis16300_check_status(dev);
-
-err_ret:
-	return ret;
-}
-
-static int adis16300_check_status(struct device *dev)
-{
-	u16 status;
-	int ret;
-
-	ret = adis16300_spi_read_reg_16(dev, ADIS16300_DIAG_STAT, &status);
-
-	if (ret < 0) {
-		dev_err(dev, "Reading status failed\n");
-		goto error_ret;
-	}
-	ret = status;
-	if (status & ADIS16300_DIAG_STAT_ZACCL_FAIL)
-		dev_err(dev, "Z-axis accelerometer self-test failure\n");
-	if (status & ADIS16300_DIAG_STAT_YACCL_FAIL)
-		dev_err(dev, "Y-axis accelerometer self-test failure\n");
-	if (status & ADIS16300_DIAG_STAT_XACCL_FAIL)
-		dev_err(dev, "X-axis accelerometer self-test failure\n");
-	if (status & ADIS16300_DIAG_STAT_XGYRO_FAIL)
-		dev_err(dev, "X-axis gyroscope self-test failure\n");
-	if (status & ADIS16300_DIAG_STAT_ALARM2)
-		dev_err(dev, "Alarm 2 active\n");
-	if (status & ADIS16300_DIAG_STAT_ALARM1)
-		dev_err(dev, "Alarm 1 active\n");
-	if (status & ADIS16300_DIAG_STAT_FLASH_CHK)
-		dev_err(dev, "Flash checksum error\n");
-	if (status & ADIS16300_DIAG_STAT_SELF_TEST)
-		dev_err(dev, "Self test error\n");
-	if (status & ADIS16300_DIAG_STAT_OVERFLOW)
-		dev_err(dev, "Sensor overrange\n");
-	if (status & ADIS16300_DIAG_STAT_SPI_FAIL)
-		dev_err(dev, "SPI failure\n");
-	if (status & ADIS16300_DIAG_STAT_FLASH_UPT)
-		dev_err(dev, "Flash update failed\n");
-	if (status & ADIS16300_DIAG_STAT_POWER_HIGH)
-		dev_err(dev, "Power supply above 5.25V\n");
-	if (status & ADIS16300_DIAG_STAT_POWER_LOW)
-		dev_err(dev, "Power supply below 4.75V\n");
-
-error_ret:
-	return ret;
-}
-
-static int adis16300_initial_setup(struct adis16300_state *st)
-{
-	int ret;
-	u16 smp_prd;
-	struct device *dev = &st->indio_dev->dev;
-
-	/* use low spi speed for init */
-	st->us->max_speed_hz = ADIS16300_SPI_SLOW;
-	st->us->mode = SPI_MODE_3;
-	spi_setup(st->us);
-
-	/* Disable IRQ */
-	ret = adis16300_set_irq(dev, false);
-	if (ret) {
-		dev_err(dev, "disable irq failed");
-		goto err_ret;
-	}
-
-	/* Do self test */
-	ret = adis16300_self_test(dev);
-	if (ret) {
-		dev_err(dev, "self test failure");
-		goto err_ret;
-	}
-
-	/* Read status register to check the result */
-	ret = adis16300_check_status(dev);
-	if (ret) {
-		adis16300_reset(dev);
-		dev_err(dev, "device not playing ball -> reset");
-		msleep(ADIS16300_STARTUP_DELAY);
-		ret = adis16300_check_status(dev);
-		if (ret) {
-			dev_err(dev, "giving up");
-			goto err_ret;
-		}
-	}
-
-	printk(KERN_INFO DRIVER_NAME ": at CS%d (irq %d)\n",
-			st->us->chip_select, st->us->irq);
-
-	/* use high spi speed if possible */
-	ret = adis16300_spi_read_reg_16(dev, ADIS16300_SMPL_PRD, &smp_prd);
-	if (!ret && (smp_prd & ADIS16300_SMPL_PRD_DIV_MASK) < 0x0A) {
-		st->us->max_speed_hz = ADIS16300_SPI_SLOW;
-		spi_setup(st->us);
-	}
-
-err_ret:
-	return ret;
-}
-
-static IIO_DEV_ATTR_GYRO_X_CALIBBIAS(S_IWUSR | S_IRUGO,
-		adis16300_read_12bit_signed,
-		adis16300_write_16bit,
-		ADIS16300_XGYRO_OFF);
-
-static IIO_DEV_ATTR_ACCEL_X_CALIBBIAS(S_IWUSR | S_IRUGO,
-		adis16300_read_12bit_signed,
-		adis16300_write_16bit,
-		ADIS16300_XACCL_OFF);
-
-static IIO_DEV_ATTR_ACCEL_Y_CALIBBIAS(S_IWUSR | S_IRUGO,
-		adis16300_read_12bit_signed,
-		adis16300_write_16bit,
-		ADIS16300_YACCL_OFF);
-
-static IIO_DEV_ATTR_ACCEL_Z_CALIBBIAS(S_IWUSR | S_IRUGO,
-		adis16300_read_12bit_signed,
-		adis16300_write_16bit,
-		ADIS16300_ZACCL_OFF);
-
-static IIO_DEV_ATTR_IN_NAMED_RAW(0, supply, adis16300_read_14bit_unsigned,
-			   ADIS16300_SUPPLY_OUT);
-static IIO_CONST_ATTR_IN_NAMED_SCALE(0, supply, "0.00242");
-
-static IIO_DEV_ATTR_GYRO_X(adis16300_read_14bit_signed,
-		ADIS16300_XGYRO_OUT);
-static IIO_CONST_ATTR_GYRO_SCALE("0.000872664");
-
-static IIO_DEV_ATTR_ACCEL_X(adis16300_read_14bit_signed,
-		ADIS16300_XACCL_OUT);
-static IIO_DEV_ATTR_ACCEL_Y(adis16300_read_14bit_signed,
-		ADIS16300_YACCL_OUT);
-static IIO_DEV_ATTR_ACCEL_Z(adis16300_read_14bit_signed,
-		ADIS16300_ZACCL_OUT);
-static IIO_CONST_ATTR_ACCEL_SCALE("0.00588399");
-
-static IIO_DEV_ATTR_INCLI_X(adis16300_read_13bit_signed,
-		ADIS16300_XINCLI_OUT);
-static IIO_DEV_ATTR_INCLI_Y(adis16300_read_13bit_signed,
-		ADIS16300_YINCLI_OUT);
-static IIO_CONST_ATTR_INCLI_SCALE("0.00076794487");
-
-static IIO_DEV_ATTR_TEMP_RAW(adis16300_read_12bit_unsigned);
-static IIO_CONST_ATTR_TEMP_OFFSET("198.16");
-static IIO_CONST_ATTR_TEMP_SCALE("0.14");
-
-static IIO_DEV_ATTR_IN_RAW(1, adis16300_read_12bit_unsigned,
-		ADIS16300_AUX_ADC);
-static IIO_CONST_ATTR(in1_scale, "0.000806");
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
-		adis16300_read_frequency,
-		adis16300_write_frequency);
-
-static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, adis16300_write_reset, 0);
-
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("409 546 819 1638");
-
-static IIO_CONST_ATTR_NAME("adis16300");
-
-static struct attribute *adis16300_attributes[] = {
-	&iio_dev_attr_gyro_x_calibbias.dev_attr.attr,
-	&iio_dev_attr_accel_x_calibbias.dev_attr.attr,
-	&iio_dev_attr_accel_y_calibbias.dev_attr.attr,
-	&iio_dev_attr_accel_z_calibbias.dev_attr.attr,
-	&iio_dev_attr_in0_supply_raw.dev_attr.attr,
-	&iio_const_attr_in0_supply_scale.dev_attr.attr,
-	&iio_dev_attr_gyro_x_raw.dev_attr.attr,
-	&iio_const_attr_gyro_scale.dev_attr.attr,
-	&iio_dev_attr_accel_x_raw.dev_attr.attr,
-	&iio_dev_attr_accel_y_raw.dev_attr.attr,
-	&iio_dev_attr_accel_z_raw.dev_attr.attr,
-	&iio_const_attr_accel_scale.dev_attr.attr,
-	&iio_dev_attr_incli_x_raw.dev_attr.attr,
-	&iio_dev_attr_incli_y_raw.dev_attr.attr,
-	&iio_const_attr_incli_scale.dev_attr.attr,
-	&iio_dev_attr_temp_raw.dev_attr.attr,
-	&iio_const_attr_temp_offset.dev_attr.attr,
-	&iio_const_attr_temp_scale.dev_attr.attr,
-	&iio_dev_attr_in1_raw.dev_attr.attr,
-	&iio_const_attr_in1_scale.dev_attr.attr,
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
-	&iio_dev_attr_reset.dev_attr.attr,
-	&iio_const_attr_name.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group adis16300_attribute_group = {
-	.attrs = adis16300_attributes,
-};
-
-static int __devinit adis16300_probe(struct spi_device *spi)
-{
-	int ret, regdone = 0;
-	struct adis16300_state *st = kzalloc(sizeof *st, GFP_KERNEL);
-	if (!st) {
-		ret =  -ENOMEM;
-		goto error_ret;
-	}
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, st);
-
-	/* Allocate the comms buffers */
-	st->rx = kzalloc(sizeof(*st->rx)*ADIS16300_MAX_RX, GFP_KERNEL);
-	if (st->rx == NULL) {
-		ret = -ENOMEM;
-		goto error_free_st;
-	}
-	st->tx = kzalloc(sizeof(*st->tx)*ADIS16300_MAX_TX, GFP_KERNEL);
-	if (st->tx == NULL) {
-		ret = -ENOMEM;
-		goto error_free_rx;
-	}
-	st->us = spi;
-	mutex_init(&st->buf_lock);
-	/* setup the industrialio driver allocated elements */
-	st->indio_dev = iio_allocate_device(0);
-	if (st->indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_free_tx;
-	}
-
-	st->indio_dev->dev.parent = &spi->dev;
-	st->indio_dev->attrs = &adis16300_attribute_group;
-	st->indio_dev->dev_data = (void *)(st);
-	st->indio_dev->driver_module = THIS_MODULE;
-	st->indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = adis16300_configure_ring(st->indio_dev);
-	if (ret)
-		goto error_free_dev;
-
-	ret = iio_device_register(st->indio_dev);
-	if (ret)
-		goto error_unreg_ring_funcs;
-	regdone = 1;
-
-	ret = iio_ring_buffer_register(st->indio_dev->ring, 0);
-	if (ret) {
-		printk(KERN_ERR "failed to initialize the ring\n");
-		goto error_unreg_ring_funcs;
-	}
-
-	if (spi->irq) {
-		ret = adis16300_probe_trigger(st->indio_dev);
-		if (ret)
-			goto error_uninitialize_ring;
-	}
-
-	/* Get the device into a sane initial state */
-	ret = adis16300_initial_setup(st);
-	if (ret)
-		goto error_remove_trigger;
-	return 0;
-
-error_remove_trigger:
-	adis16300_remove_trigger(st->indio_dev);
-error_uninitialize_ring:
-	iio_ring_buffer_unregister(st->indio_dev->ring);
-error_unreg_ring_funcs:
-	adis16300_unconfigure_ring(st->indio_dev);
-error_free_dev:
-	if (regdone)
-		iio_device_unregister(st->indio_dev);
-	else
-		iio_free_device(st->indio_dev);
-error_free_tx:
-	kfree(st->tx);
-error_free_rx:
-	kfree(st->rx);
-error_free_st:
-	kfree(st);
-error_ret:
-	return ret;
-}
-
-static int adis16300_remove(struct spi_device *spi)
-{
-	int ret;
-	struct adis16300_state *st = spi_get_drvdata(spi);
-	struct iio_dev *indio_dev = st->indio_dev;
-
-	ret = adis16300_stop_device(&(indio_dev->dev));
-	if (ret)
-		goto err_ret;
-
-	flush_scheduled_work();
-
-	adis16300_remove_trigger(indio_dev);
-	iio_ring_buffer_unregister(indio_dev->ring);
-	iio_device_unregister(indio_dev);
-	adis16300_unconfigure_ring(indio_dev);
-	kfree(st->tx);
-	kfree(st->rx);
-	kfree(st);
-
-	return 0;
-
-err_ret:
-	return ret;
-}
-
-static struct spi_driver adis16300_driver = {
-	.driver = {
-		.name = "adis16300",
-		.owner = THIS_MODULE,
-	},
-	.probe = adis16300_probe,
-	.remove = __devexit_p(adis16300_remove),
-};
-
-static __init int adis16300_init(void)
-{
-	return spi_register_driver(&adis16300_driver);
-}
-module_init(adis16300_init);
-
-static __exit void adis16300_exit(void)
-{
-	spi_unregister_driver(&adis16300_driver);
-}
-module_exit(adis16300_exit);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADIS16300 IMU SPI driver");
-MODULE_LICENSE("GPL v2");

drivers/staging/iio/imu/adis16300_ring.c

@@ -1,238 +0,0 @@
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/gpio.h>
-#include <linux/workqueue.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-
-#include "../iio.h"
-#include "../sysfs.h"
-#include "../ring_sw.h"
-#include "../accel/accel.h"
-#include "../trigger.h"
-#include "adis16300.h"
-
-static IIO_SCAN_EL_C(in0_supply, ADIS16300_SCAN_SUPPLY,
-		     ADIS16300_SUPPLY_OUT, NULL);
-static IIO_CONST_ATTR_SCAN_EL_TYPE(in0_supply, u, 12, 16);
-static IIO_SCAN_EL_C(gyro_x, ADIS16300_SCAN_GYRO_X, ADIS16300_XGYRO_OUT, NULL);
-static IIO_CONST_ATTR_SCAN_EL_TYPE(gyro, s, 14, 16);
-
-static IIO_SCAN_EL_C(accel_x, ADIS16300_SCAN_ACC_X, ADIS16300_XACCL_OUT, NULL);
-static IIO_SCAN_EL_C(accel_y, ADIS16300_SCAN_ACC_Y, ADIS16300_YACCL_OUT, NULL);
-static IIO_SCAN_EL_C(accel_z, ADIS16300_SCAN_ACC_Z, ADIS16300_ZACCL_OUT, NULL);
-static IIO_CONST_ATTR_SCAN_EL_TYPE(accel, s, 14, 16);
-
-static IIO_SCAN_EL_C(temp, ADIS16300_SCAN_TEMP, ADIS16300_TEMP_OUT, NULL);
-static IIO_CONST_ATTR_SCAN_EL_TYPE(temp, s, 12, 16);
-
-static IIO_SCAN_EL_C(in1, ADIS16300_SCAN_ADC_0, ADIS16300_AUX_ADC, NULL);
-static IIO_CONST_ATTR_SCAN_EL_TYPE(in1, u, 12, 16);
-
-static IIO_SCAN_EL_C(incli_x, ADIS16300_SCAN_INCLI_X,
-		     ADIS16300_XINCLI_OUT, NULL);
-static IIO_SCAN_EL_C(incli_y, ADIS16300_SCAN_INCLI_Y,
-		     ADIS16300_YINCLI_OUT, NULL);
-static IIO_CONST_ATTR_SCAN_EL_TYPE(incli, s, 13, 16);
-
-static IIO_SCAN_EL_TIMESTAMP(9);
-static IIO_CONST_ATTR_SCAN_EL_TYPE(timestamp, s, 64, 64);
-
-static struct attribute *adis16300_scan_el_attrs[] = {
-	&iio_scan_el_in0_supply.dev_attr.attr,
-	&iio_const_attr_in0_supply_index.dev_attr.attr,
-	&iio_const_attr_in0_supply_type.dev_attr.attr,
-	&iio_scan_el_gyro_x.dev_attr.attr,
-	&iio_const_attr_gyro_x_index.dev_attr.attr,
-	&iio_const_attr_gyro_type.dev_attr.attr,
-	&iio_scan_el_temp.dev_attr.attr,
-	&iio_const_attr_temp_index.dev_attr.attr,
-	&iio_const_attr_temp_type.dev_attr.attr,
-	&iio_scan_el_accel_x.dev_attr.attr,
-	&iio_const_attr_accel_x_index.dev_attr.attr,
-	&iio_scan_el_accel_y.dev_attr.attr,
-	&iio_const_attr_accel_y_index.dev_attr.attr,
-	&iio_scan_el_accel_z.dev_attr.attr,
-	&iio_const_attr_accel_z_index.dev_attr.attr,
-	&iio_const_attr_accel_type.dev_attr.attr,
-	&iio_scan_el_incli_x.dev_attr.attr,
-	&iio_const_attr_incli_x_index.dev_attr.attr,
-	&iio_scan_el_incli_y.dev_attr.attr,
-	&iio_const_attr_incli_y_index.dev_attr.attr,
-	&iio_const_attr_incli_type.dev_attr.attr,
-	&iio_scan_el_in1.dev_attr.attr,
-	&iio_const_attr_in1_index.dev_attr.attr,
-	&iio_const_attr_in1_type.dev_attr.attr,
-	&iio_scan_el_timestamp.dev_attr.attr,
-	&iio_const_attr_timestamp_index.dev_attr.attr,
-	&iio_const_attr_timestamp_type.dev_attr.attr,
-	NULL,
-};
-
-static struct attribute_group adis16300_scan_el_group = {
-	.attrs = adis16300_scan_el_attrs,
-	.name = "scan_elements",
-};
-
-/**
- * adis16300_poll_func_th() top half interrupt handler called by trigger
- * @private_data:	iio_dev
- **/
-static void adis16300_poll_func_th(struct iio_dev *indio_dev, s64 time)
-{
-	struct adis16300_state *st = iio_dev_get_devdata(indio_dev);
-	st->last_timestamp = time;
-	schedule_work(&st->work_trigger_to_ring);
-	/* Indicate that this interrupt is being handled */
-
-	/* Technically this is trigger related, but without this
-	 * handler running there is currently no way for the interrupt
-	 * to clear.
-	 */
-}
-
-/**
- * adis16300_spi_read_burst() - read all data registers
- * @dev: device associated with child of actual device (iio_dev or iio_trig)
- * @rx: somewhere to pass back the value read (min size is 24 bytes)
- **/
-static int adis16300_spi_read_burst(struct device *dev, u8 *rx)
-{
-	struct spi_message msg;
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct adis16300_state *st = iio_dev_get_devdata(indio_dev);
-	u32 old_speed_hz = st->us->max_speed_hz;
-	int ret;
-
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 2,
-			.cs_change = 0,
-		}, {
-			.rx_buf = rx,
-			.bits_per_word = 8,
-			.len = 18,
-			.cs_change = 0,
-		},
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADIS16300_READ_REG(ADIS16300_GLOB_CMD);
-	st->tx[1] = 0;
-
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-
-	st->us->max_speed_hz = ADIS16300_SPI_BURST;
-	spi_setup(st->us);
-
-	ret = spi_sync(st->us, &msg);
-	if (ret)
-		dev_err(&st->us->dev, "problem when burst reading");
-
-	st->us->max_speed_hz = old_speed_hz;
-	spi_setup(st->us);
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-/* Whilst this makes a lot of calls to iio_sw_ring functions - it is to device
- * specific to be rolled into the core.
- */
-static void adis16300_trigger_bh_to_ring(struct work_struct *work_s)
-{
-	struct adis16300_state *st
-		= container_of(work_s, struct adis16300_state,
-			       work_trigger_to_ring);
-	struct iio_ring_buffer *ring = st->indio_dev->ring;
-
-	int i = 0;
-	s16 *data;
-	size_t datasize = ring->access.get_bytes_per_datum(ring);
-
-	data = kmalloc(datasize , GFP_KERNEL);
-	if (data == NULL) {
-		dev_err(&st->us->dev, "memory alloc failed in ring bh");
-		return;
-	}
-
-	if (ring->scan_count)
-		if (adis16300_spi_read_burst(&st->indio_dev->dev, st->rx) >= 0)
-			for (; i < ring->scan_count; i++)
-				data[i] = be16_to_cpup(
-					(__be16 *)&(st->rx[i*2]));
-
-	/* Guaranteed to be aligned with 8 byte boundary */
-	if (ring->scan_timestamp)
-		*((s64 *)(data + ((i + 3)/4)*4)) = st->last_timestamp;
-
-	ring->access.store_to(ring,
-			(u8 *)data,
-			st->last_timestamp);
-
-	iio_trigger_notify_done(st->indio_dev->trig);
-	kfree(data);
-
-	return;
-}
-
-void adis16300_unconfigure_ring(struct iio_dev *indio_dev)
-{
-	kfree(indio_dev->pollfunc);
-	iio_sw_rb_free(indio_dev->ring);
-}
-
-int adis16300_configure_ring(struct iio_dev *indio_dev)
-{
-	int ret = 0;
-	struct adis16300_state *st = indio_dev->dev_data;
-	struct iio_ring_buffer *ring;
-	INIT_WORK(&st->work_trigger_to_ring, adis16300_trigger_bh_to_ring);
-
-	ring = iio_sw_rb_allocate(indio_dev);
-	if (!ring) {
-		ret = -ENOMEM;
-		return ret;
-	}
-	indio_dev->ring = ring;
-	/* Effectively select the ring buffer implementation */
-	iio_ring_sw_register_funcs(&ring->access);
-	ring->bpe = 2;
-	ring->scan_el_attrs = &adis16300_scan_el_group;
-	ring->scan_timestamp = true;
-	ring->preenable = &iio_sw_ring_preenable;
-	ring->postenable = &iio_triggered_ring_postenable;
-	ring->predisable = &iio_triggered_ring_predisable;
-	ring->owner = THIS_MODULE;
-
-	/* Set default scan mode */
-	iio_scan_mask_set(ring, iio_scan_el_in0_supply.number);
-	iio_scan_mask_set(ring, iio_scan_el_gyro_x.number);
-	iio_scan_mask_set(ring, iio_scan_el_accel_x.number);
-	iio_scan_mask_set(ring, iio_scan_el_accel_y.number);
-	iio_scan_mask_set(ring, iio_scan_el_accel_z.number);
-	iio_scan_mask_set(ring, iio_scan_el_temp.number);
-	iio_scan_mask_set(ring, iio_scan_el_in1.number);
-	iio_scan_mask_set(ring, iio_scan_el_incli_x.number);
-	iio_scan_mask_set(ring, iio_scan_el_incli_y.number);
-
-	ret = iio_alloc_pollfunc(indio_dev, NULL, &adis16300_poll_func_th);
-	if (ret)
-		goto error_iio_sw_rb_free;
-
-	indio_dev->modes |= INDIO_RING_TRIGGERED;
-	return 0;
-
-error_iio_sw_rb_free:
-	iio_sw_rb_free(indio_dev->ring);
-	return ret;
-}
-

drivers/staging/iio/imu/adis16300_trigger.c

@@ -1,119 +0,0 @@
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/spi/spi.h>
-
-#include "../iio.h"
-#include "../sysfs.h"
-#include "../trigger.h"
-#include "adis16300.h"
-
-/**
- * adis16300_data_rdy_trig_poll() the event handler for the data rdy trig
- **/
-static irqreturn_t adis16300_data_rdy_trig_poll(int irq, void *private)
-{
-	disable_irq_nosync(irq);
-	iio_trigger_poll(private, iio_get_time_ns());
-	return IRQ_HANDLED;
-}
-
-static IIO_TRIGGER_NAME_ATTR;
-
-static struct attribute *adis16300_trigger_attrs[] = {
-	&dev_attr_name.attr,
-	NULL,
-};
-
-static const struct attribute_group adis16300_trigger_attr_group = {
-	.attrs = adis16300_trigger_attrs,
-};
-
-/**
- * adis16300_data_rdy_trigger_set_state() set datardy interrupt state
- **/
-static int adis16300_data_rdy_trigger_set_state(struct iio_trigger *trig,
-						bool state)
-{
-	struct adis16300_state *st = trig->private_data;
-	struct iio_dev *indio_dev = st->indio_dev;
-
-	dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state);
-	return adis16300_set_irq(&st->indio_dev->dev, state);
-}
-
-/**
- * adis16300_trig_try_reen() try renabling irq for data rdy trigger
- * @trig:	the datardy trigger
- **/
-static int adis16300_trig_try_reen(struct iio_trigger *trig)
-{
-	struct adis16300_state *st = trig->private_data;
-	enable_irq(st->us->irq);
-	/* irq reenabled so success! */
-	return 0;
-}
-
-int adis16300_probe_trigger(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct adis16300_state *st = indio_dev->dev_data;
-
-	st->trig = iio_allocate_trigger();
-	if (st->trig == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	ret = request_irq(st->us->irq,
-			  adis16300_data_rdy_trig_poll,
-			  IRQF_TRIGGER_RISING,
-			  "adis16300",
-			  st->trig);
-	if (ret)
-		goto error_free_trig;
-
-	st->trig->name = kasprintf(GFP_KERNEL,
-				   "adis16300-dev%d",
-				   indio_dev->id);
-	if (!st->trig->name) {
-		ret = -ENOMEM;
-		goto error_free_irq;
-	}
-	st->trig->dev.parent = &st->us->dev;
-	st->trig->owner = THIS_MODULE;
-	st->trig->private_data = st;
-	st->trig->set_trigger_state = &adis16300_data_rdy_trigger_set_state;
-	st->trig->try_reenable = &adis16300_trig_try_reen;
-	st->trig->control_attrs = &adis16300_trigger_attr_group;
-	ret = iio_trigger_register(st->trig);
-
-	/* select default trigger */
-	indio_dev->trig = st->trig;
-	if (ret)
-		goto error_free_trig_name;
-
-	return 0;
-
-error_free_trig_name:
-	kfree(st->trig->name);
-error_free_irq:
-	free_irq(st->us->irq, st->trig);
-error_free_trig:
-	iio_free_trigger(st->trig);
-error_ret:
-	return ret;
-}
-
-void adis16300_remove_trigger(struct iio_dev *indio_dev)
-{
-	struct adis16300_state *state = indio_dev->dev_data;
-
-	iio_trigger_unregister(state->trig);
-	kfree(state->trig->name);
-	free_irq(state->us->irq, state->trig);
-	iio_free_trigger(state->trig);
-}