Adding invensense drivers from SDK, ported to Linux 3.10

Change-Id: Ia39c67631eedb7851c1e937e380e310bcf87e7e3

1 files changed, 0 insertions, 924 deletions

diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c
deleted file mode 100644
index b7db3837629..00000000000
--- a/drivers/iio/imu/adis16480.c
+++ /dev/null
@@ -1,924 +0,0 @@
-/*
- * ADIS16480 and similar IMUs driver
- *
- * Copyright 2012 Analog Devices Inc.
- *
- * 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.
- *
- */
-
-#include <linux/interrupt.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/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/imu/adis.h>
-
-#include <linux/debugfs.h>
-
-#define ADIS16480_PAGE_SIZE 0x80
-
-#define ADIS16480_REG(page, reg) ((page) * ADIS16480_PAGE_SIZE + (reg))
-
-#define ADIS16480_REG_PAGE_ID 0x00 /* Same address on each page */
-#define ADIS16480_REG_SEQ_CNT			ADIS16480_REG(0x00, 0x06)
-#define ADIS16480_REG_SYS_E_FLA			ADIS16480_REG(0x00, 0x08)
-#define ADIS16480_REG_DIAG_STS			ADIS16480_REG(0x00, 0x0A)
-#define ADIS16480_REG_ALM_STS			ADIS16480_REG(0x00, 0x0C)
-#define ADIS16480_REG_TEMP_OUT			ADIS16480_REG(0x00, 0x0E)
-#define ADIS16480_REG_X_GYRO_OUT		ADIS16480_REG(0x00, 0x10)
-#define ADIS16480_REG_Y_GYRO_OUT		ADIS16480_REG(0x00, 0x14)
-#define ADIS16480_REG_Z_GYRO_OUT		ADIS16480_REG(0x00, 0x18)
-#define ADIS16480_REG_X_ACCEL_OUT		ADIS16480_REG(0x00, 0x1C)
-#define ADIS16480_REG_Y_ACCEL_OUT		ADIS16480_REG(0x00, 0x20)
-#define ADIS16480_REG_Z_ACCEL_OUT		ADIS16480_REG(0x00, 0x24)
-#define ADIS16480_REG_X_MAGN_OUT		ADIS16480_REG(0x00, 0x28)
-#define ADIS16480_REG_Y_MAGN_OUT		ADIS16480_REG(0x00, 0x2A)
-#define ADIS16480_REG_Z_MAGN_OUT		ADIS16480_REG(0x00, 0x2C)
-#define ADIS16480_REG_BAROM_OUT			ADIS16480_REG(0x00, 0x2E)
-#define ADIS16480_REG_X_DELTAANG_OUT		ADIS16480_REG(0x00, 0x40)
-#define ADIS16480_REG_Y_DELTAANG_OUT		ADIS16480_REG(0x00, 0x44)
-#define ADIS16480_REG_Z_DELTAANG_OUT		ADIS16480_REG(0x00, 0x48)
-#define ADIS16480_REG_X_DELTAVEL_OUT		ADIS16480_REG(0x00, 0x4C)
-#define ADIS16480_REG_Y_DELTAVEL_OUT		ADIS16480_REG(0x00, 0x50)
-#define ADIS16480_REG_Z_DELTAVEL_OUT		ADIS16480_REG(0x00, 0x54)
-#define ADIS16480_REG_PROD_ID			ADIS16480_REG(0x00, 0x7E)
-
-#define ADIS16480_REG_X_GYRO_SCALE		ADIS16480_REG(0x02, 0x04)
-#define ADIS16480_REG_Y_GYRO_SCALE		ADIS16480_REG(0x02, 0x06)
-#define ADIS16480_REG_Z_GYRO_SCALE		ADIS16480_REG(0x02, 0x08)
-#define ADIS16480_REG_X_ACCEL_SCALE		ADIS16480_REG(0x02, 0x0A)
-#define ADIS16480_REG_Y_ACCEL_SCALE		ADIS16480_REG(0x02, 0x0C)
-#define ADIS16480_REG_Z_ACCEL_SCALE		ADIS16480_REG(0x02, 0x0E)
-#define ADIS16480_REG_X_GYRO_BIAS		ADIS16480_REG(0x02, 0x10)
-#define ADIS16480_REG_Y_GYRO_BIAS		ADIS16480_REG(0x02, 0x14)
-#define ADIS16480_REG_Z_GYRO_BIAS		ADIS16480_REG(0x02, 0x18)
-#define ADIS16480_REG_X_ACCEL_BIAS		ADIS16480_REG(0x02, 0x1C)
-#define ADIS16480_REG_Y_ACCEL_BIAS		ADIS16480_REG(0x02, 0x20)
-#define ADIS16480_REG_Z_ACCEL_BIAS		ADIS16480_REG(0x02, 0x24)
-#define ADIS16480_REG_X_HARD_IRON		ADIS16480_REG(0x02, 0x28)
-#define ADIS16480_REG_Y_HARD_IRON		ADIS16480_REG(0x02, 0x2A)
-#define ADIS16480_REG_Z_HARD_IRON		ADIS16480_REG(0x02, 0x2C)
-#define ADIS16480_REG_BAROM_BIAS		ADIS16480_REG(0x02, 0x40)
-#define ADIS16480_REG_FLASH_CNT			ADIS16480_REG(0x02, 0x7C)
-
-#define ADIS16480_REG_GLOB_CMD			ADIS16480_REG(0x03, 0x02)
-#define ADIS16480_REG_FNCTIO_CTRL		ADIS16480_REG(0x03, 0x06)
-#define ADIS16480_REG_GPIO_CTRL			ADIS16480_REG(0x03, 0x08)
-#define ADIS16480_REG_CONFIG			ADIS16480_REG(0x03, 0x0A)
-#define ADIS16480_REG_DEC_RATE			ADIS16480_REG(0x03, 0x0C)
-#define ADIS16480_REG_SLP_CNT			ADIS16480_REG(0x03, 0x10)
-#define ADIS16480_REG_FILTER_BNK0		ADIS16480_REG(0x03, 0x16)
-#define ADIS16480_REG_FILTER_BNK1		ADIS16480_REG(0x03, 0x18)
-#define ADIS16480_REG_ALM_CNFG0			ADIS16480_REG(0x03, 0x20)
-#define ADIS16480_REG_ALM_CNFG1			ADIS16480_REG(0x03, 0x22)
-#define ADIS16480_REG_ALM_CNFG2			ADIS16480_REG(0x03, 0x24)
-#define ADIS16480_REG_XG_ALM_MAGN		ADIS16480_REG(0x03, 0x28)
-#define ADIS16480_REG_YG_ALM_MAGN		ADIS16480_REG(0x03, 0x2A)
-#define ADIS16480_REG_ZG_ALM_MAGN		ADIS16480_REG(0x03, 0x2C)
-#define ADIS16480_REG_XA_ALM_MAGN		ADIS16480_REG(0x03, 0x2E)
-#define ADIS16480_REG_YA_ALM_MAGN		ADIS16480_REG(0x03, 0x30)
-#define ADIS16480_REG_ZA_ALM_MAGN		ADIS16480_REG(0x03, 0x32)
-#define ADIS16480_REG_XM_ALM_MAGN		ADIS16480_REG(0x03, 0x34)
-#define ADIS16480_REG_YM_ALM_MAGN		ADIS16480_REG(0x03, 0x36)
-#define ADIS16480_REG_ZM_ALM_MAGN		ADIS16480_REG(0x03, 0x38)
-#define ADIS16480_REG_BR_ALM_MAGN		ADIS16480_REG(0x03, 0x3A)
-#define ADIS16480_REG_FIRM_REV			ADIS16480_REG(0x03, 0x78)
-#define ADIS16480_REG_FIRM_DM			ADIS16480_REG(0x03, 0x7A)
-#define ADIS16480_REG_FIRM_Y			ADIS16480_REG(0x03, 0x7C)
-
-#define ADIS16480_REG_SERIAL_NUM		ADIS16480_REG(0x04, 0x20)
-
-/* Each filter coefficent bank spans two pages */
-#define ADIS16480_FIR_COEF(page) (x < 60 ? ADIS16480_REG(page, (x) + 8) : \
-		ADIS16480_REG((page) + 1, (x) - 60 + 8))
-#define ADIS16480_FIR_COEF_A(x)			ADIS16480_FIR_COEF(0x05, (x))
-#define ADIS16480_FIR_COEF_B(x)			ADIS16480_FIR_COEF(0x07, (x))
-#define ADIS16480_FIR_COEF_C(x)			ADIS16480_FIR_COEF(0x09, (x))
-#define ADIS16480_FIR_COEF_D(x)			ADIS16480_FIR_COEF(0x0B, (x))
-
-struct adis16480_chip_info {
-	unsigned int num_channels;
-	const struct iio_chan_spec *channels;
-};
-
-struct adis16480 {
-	const struct adis16480_chip_info *chip_info;
-
-	struct adis adis;
-};
-
-#ifdef CONFIG_DEBUG_FS
-
-static ssize_t adis16480_show_firmware_revision(struct file *file,
-		char __user *userbuf, size_t count, loff_t *ppos)
-{
-	struct adis16480 *adis16480 = file->private_data;
-	char buf[7];
-	size_t len;
-	u16 rev;
-	int ret;
-
-	ret = adis_read_reg_16(&adis16480->adis, ADIS16480_REG_FIRM_REV, &rev);
-	if (ret < 0)
-		return ret;
-
-	len = scnprintf(buf, sizeof(buf), "%x.%x\n", rev >> 8, rev & 0xff);
-
-	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
-}
-
-static const struct file_operations adis16480_firmware_revision_fops = {
-	.open = simple_open,
-	.read = adis16480_show_firmware_revision,
-	.llseek = default_llseek,
-	.owner = THIS_MODULE,
-};
-
-static ssize_t adis16480_show_firmware_date(struct file *file,
-		char __user *userbuf, size_t count, loff_t *ppos)
-{
-	struct adis16480 *adis16480 = file->private_data;
-	u16 md, year;
-	char buf[12];
-	size_t len;
-	int ret;
-
-	ret = adis_read_reg_16(&adis16480->adis, ADIS16480_REG_FIRM_Y, &year);
-	if (ret < 0)
-		return ret;
-
-	ret = adis_read_reg_16(&adis16480->adis, ADIS16480_REG_FIRM_DM, &md);
-	if (ret < 0)
-		return ret;
-
-	len = snprintf(buf, sizeof(buf), "%.2x-%.2x-%.4x\n",
-			md >> 8, md & 0xff, year);
-
-	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
-}
-
-static const struct file_operations adis16480_firmware_date_fops = {
-	.open = simple_open,
-	.read = adis16480_show_firmware_date,
-	.llseek = default_llseek,
-	.owner = THIS_MODULE,
-};
-
-static int adis16480_show_serial_number(void *arg, u64 *val)
-{
-	struct adis16480 *adis16480 = arg;
-	u16 serial;
-	int ret;
-
-	ret = adis_read_reg_16(&adis16480->adis, ADIS16480_REG_SERIAL_NUM,
-		&serial);
-	if (ret < 0)
-		return ret;
-
-	*val = serial;
-
-	return 0;
-}
-DEFINE_SIMPLE_ATTRIBUTE(adis16480_serial_number_fops,
-	adis16480_show_serial_number, NULL, "0x%.4llx\n");
-
-static int adis16480_show_product_id(void *arg, u64 *val)
-{
-	struct adis16480 *adis16480 = arg;
-	u16 prod_id;
-	int ret;
-
-	ret = adis_read_reg_16(&adis16480->adis, ADIS16480_REG_PROD_ID,
-		&prod_id);
-	if (ret < 0)
-		return ret;
-
-	*val = prod_id;
-
-	return 0;
-}
-DEFINE_SIMPLE_ATTRIBUTE(adis16480_product_id_fops,
-	adis16480_show_product_id, NULL, "%llu\n");
-
-static int adis16480_show_flash_count(void *arg, u64 *val)
-{
-	struct adis16480 *adis16480 = arg;
-	u32 flash_count;
-	int ret;
-
-	ret = adis_read_reg_32(&adis16480->adis, ADIS16480_REG_FLASH_CNT,
-		&flash_count);
-	if (ret < 0)
-		return ret;
-
-	*val = flash_count;
-
-	return 0;
-}
-DEFINE_SIMPLE_ATTRIBUTE(adis16480_flash_count_fops,
-	adis16480_show_flash_count, NULL, "%lld\n");
-
-static int adis16480_debugfs_init(struct iio_dev *indio_dev)
-{
-	struct adis16480 *adis16480 = iio_priv(indio_dev);
-
-	debugfs_create_file("firmware_revision", 0400,
-		indio_dev->debugfs_dentry, adis16480,
-		&adis16480_firmware_revision_fops);
-	debugfs_create_file("firmware_date", 0400, indio_dev->debugfs_dentry,
-		adis16480, &adis16480_firmware_date_fops);
-	debugfs_create_file("serial_number", 0400, indio_dev->debugfs_dentry,
-		adis16480, &adis16480_serial_number_fops);
-	debugfs_create_file("product_id", 0400, indio_dev->debugfs_dentry,
-		adis16480, &adis16480_product_id_fops);
-	debugfs_create_file("flash_count", 0400, indio_dev->debugfs_dentry,
-		adis16480, &adis16480_flash_count_fops);
-
-	return 0;
-}
-
-#else
-
-static int adis16480_debugfs_init(struct iio_dev *indio_dev)
-{
-	return 0;
-}
-
-#endif
-
-static int adis16480_set_freq(struct adis16480 *st, unsigned int freq)
-{
-	unsigned int t;
-
-	t = 2460000 / freq;
-	if (t > 2048)
-		t = 2048;
-
-	if (t != 0)
-		t--;
-
-	return adis_write_reg_16(&st->adis, ADIS16480_REG_DEC_RATE, t);
-}
-
-static int adis16480_get_freq(struct adis16480 *st, unsigned int *freq)
-{
-	uint16_t t;
-	int ret;
-
-	ret = adis_read_reg_16(&st->adis, ADIS16480_REG_DEC_RATE, &t);
-	if (ret < 0)
-		return ret;
-
-	*freq = 2460000 / (t + 1);
-
-	return 0;
-}
-
-static ssize_t adis16480_read_frequency(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct adis16480 *st = iio_priv(indio_dev);
-	unsigned int freq;
-	int ret;
-
-	ret = adis16480_get_freq(st, &freq);
-	if (ret < 0)
-		return ret;
-
-	return sprintf(buf, "%d.%.3d\n", freq / 1000, freq % 1000);
-}
-
-static ssize_t adis16480_write_frequency(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct adis16480 *st = iio_priv(indio_dev);
-	int freq_int, freq_fract;
-	long val;
-	int ret;
-
-	ret = iio_str_to_fixpoint(buf, 100, &freq_int, &freq_fract);
-	if (ret)
-		return ret;
-
-	val = freq_int * 1000 + freq_fract;
-
-	if (val <= 0)
-		return -EINVAL;
-
-	ret = adis16480_set_freq(st, val);
-
-	return ret ? ret : len;
-}
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
-			      adis16480_read_frequency,
-			      adis16480_write_frequency);
-
-enum {
-	ADIS16480_SCAN_GYRO_X,
-	ADIS16480_SCAN_GYRO_Y,
-	ADIS16480_SCAN_GYRO_Z,
-	ADIS16480_SCAN_ACCEL_X,
-	ADIS16480_SCAN_ACCEL_Y,
-	ADIS16480_SCAN_ACCEL_Z,
-	ADIS16480_SCAN_MAGN_X,
-	ADIS16480_SCAN_MAGN_Y,
-	ADIS16480_SCAN_MAGN_Z,
-	ADIS16480_SCAN_BARO,
-	ADIS16480_SCAN_TEMP,
-};
-
-static const unsigned int adis16480_calibbias_regs[] = {
-	[ADIS16480_SCAN_GYRO_X] = ADIS16480_REG_X_GYRO_BIAS,
-	[ADIS16480_SCAN_GYRO_Y] = ADIS16480_REG_Y_GYRO_BIAS,
-	[ADIS16480_SCAN_GYRO_Z] = ADIS16480_REG_Z_GYRO_BIAS,
-	[ADIS16480_SCAN_ACCEL_X] = ADIS16480_REG_X_ACCEL_BIAS,
-	[ADIS16480_SCAN_ACCEL_Y] = ADIS16480_REG_Y_ACCEL_BIAS,
-	[ADIS16480_SCAN_ACCEL_Z] = ADIS16480_REG_Z_ACCEL_BIAS,
-	[ADIS16480_SCAN_MAGN_X] = ADIS16480_REG_X_HARD_IRON,
-	[ADIS16480_SCAN_MAGN_Y] = ADIS16480_REG_Y_HARD_IRON,
-	[ADIS16480_SCAN_MAGN_Z] = ADIS16480_REG_Z_HARD_IRON,
-	[ADIS16480_SCAN_BARO] = ADIS16480_REG_BAROM_BIAS,
-};
-
-static const unsigned int adis16480_calibscale_regs[] = {
-	[ADIS16480_SCAN_GYRO_X] = ADIS16480_REG_X_GYRO_SCALE,
-	[ADIS16480_SCAN_GYRO_Y] = ADIS16480_REG_Y_GYRO_SCALE,
-	[ADIS16480_SCAN_GYRO_Z] = ADIS16480_REG_Z_GYRO_SCALE,
-	[ADIS16480_SCAN_ACCEL_X] = ADIS16480_REG_X_ACCEL_SCALE,
-	[ADIS16480_SCAN_ACCEL_Y] = ADIS16480_REG_Y_ACCEL_SCALE,
-	[ADIS16480_SCAN_ACCEL_Z] = ADIS16480_REG_Z_ACCEL_SCALE,
-};
-
-static int adis16480_set_calibbias(struct iio_dev *indio_dev,
-	const struct iio_chan_spec *chan, int bias)
-{
-	unsigned int reg = adis16480_calibbias_regs[chan->scan_index];
-	struct adis16480 *st = iio_priv(indio_dev);
-
-	switch (chan->type) {
-	case IIO_MAGN:
-	case IIO_PRESSURE:
-		if (bias < -0x8000 || bias >= 0x8000)
-			return -EINVAL;
-		return adis_write_reg_16(&st->adis, reg, bias);
-	case IIO_ANGL_VEL:
-	case IIO_ACCEL:
-		return adis_write_reg_32(&st->adis, reg, bias);
-	default:
-		break;
-	}
-
-	return -EINVAL;
-}
-
-static int adis16480_get_calibbias(struct iio_dev *indio_dev,
-	const struct iio_chan_spec *chan, int *bias)
-{
-	unsigned int reg = adis16480_calibbias_regs[chan->scan_index];
-	struct adis16480 *st = iio_priv(indio_dev);
-	uint16_t val16;
-	uint32_t val32;
-	int ret;
-
-	switch (chan->type) {
-	case IIO_MAGN:
-	case IIO_PRESSURE:
-		ret = adis_read_reg_16(&st->adis, reg, &val16);
-		*bias = sign_extend32(val16, 15);
-		break;
-	case IIO_ANGL_VEL:
-	case IIO_ACCEL:
-		ret = adis_read_reg_32(&st->adis, reg, &val32);
-		*bias = sign_extend32(val32, 31);
-		break;
-	default:
-			ret = -EINVAL;
-	}
-
-	if (ret < 0)
-		return ret;
-
-	return IIO_VAL_INT;
-}
-
-static int adis16480_set_calibscale(struct iio_dev *indio_dev,
-	const struct iio_chan_spec *chan, int scale)
-{
-	unsigned int reg = adis16480_calibscale_regs[chan->scan_index];
-	struct adis16480 *st = iio_priv(indio_dev);
-
-	if (scale < -0x8000 || scale >= 0x8000)
-		return -EINVAL;
-
-	return adis_write_reg_16(&st->adis, reg, scale);
-}
-
-static int adis16480_get_calibscale(struct iio_dev *indio_dev,
-	const struct iio_chan_spec *chan, int *scale)
-{
-	unsigned int reg = adis16480_calibscale_regs[chan->scan_index];
-	struct adis16480 *st = iio_priv(indio_dev);
-	uint16_t val16;
-	int ret;
-
-	ret = adis_read_reg_16(&st->adis, reg, &val16);
-	if (ret < 0)
-		return ret;
-
-	*scale = sign_extend32(val16, 15);
-	return IIO_VAL_INT;
-}
-
-static const unsigned int adis16480_def_filter_freqs[] = {
-	310,
-	55,
-	275,
-	63,
-};
-
-static const unsigned int ad16480_filter_data[][2] = {
-	[ADIS16480_SCAN_GYRO_X]		= { ADIS16480_REG_FILTER_BNK0, 0 },
-	[ADIS16480_SCAN_GYRO_Y]		= { ADIS16480_REG_FILTER_BNK0, 3 },
-	[ADIS16480_SCAN_GYRO_Z]		= { ADIS16480_REG_FILTER_BNK0, 6 },
-	[ADIS16480_SCAN_ACCEL_X]	= { ADIS16480_REG_FILTER_BNK0, 9 },
-	[ADIS16480_SCAN_ACCEL_Y]	= { ADIS16480_REG_FILTER_BNK0, 12 },
-	[ADIS16480_SCAN_ACCEL_Z]	= { ADIS16480_REG_FILTER_BNK1, 0 },
-	[ADIS16480_SCAN_MAGN_X]		= { ADIS16480_REG_FILTER_BNK1, 3 },
-	[ADIS16480_SCAN_MAGN_Y]		= { ADIS16480_REG_FILTER_BNK1, 6 },
-	[ADIS16480_SCAN_MAGN_Z]		= { ADIS16480_REG_FILTER_BNK1, 9 },
-};
-
-static int adis16480_get_filter_freq(struct iio_dev *indio_dev,
-	const struct iio_chan_spec *chan, int *freq)
-{
-	struct adis16480 *st = iio_priv(indio_dev);
-	unsigned int enable_mask, offset, reg;
-	uint16_t val;
-	int ret;
-
-	reg = ad16480_filter_data[chan->scan_index][0];
-	offset = ad16480_filter_data[chan->scan_index][1];
-	enable_mask = BIT(offset + 2);
-
-	ret = adis_read_reg_16(&st->adis, reg, &val);
-	if (ret < 0)
-		return ret;
-
-	if (!(val & enable_mask))
-		*freq = 0;
-	else
-		*freq = adis16480_def_filter_freqs[(val >> offset) & 0x3];
-
-	return IIO_VAL_INT;
-}
-
-static int adis16480_set_filter_freq(struct iio_dev *indio_dev,
-	const struct iio_chan_spec *chan, unsigned int freq)
-{
-	struct adis16480 *st = iio_priv(indio_dev);
-	unsigned int enable_mask, offset, reg;
-	unsigned int diff, best_diff;
-	unsigned int i, best_freq;
-	uint16_t val;
-	int ret;
-
-	reg = ad16480_filter_data[chan->scan_index][0];
-	offset = ad16480_filter_data[chan->scan_index][1];
-	enable_mask = BIT(offset + 2);
-
-	ret = adis_read_reg_16(&st->adis, reg, &val);
-	if (ret < 0)
-		return ret;
-
-	if (freq == 0) {
-		val &= ~enable_mask;
-	} else {
-		best_freq = 0;
-		best_diff = 310;
-		for (i = 0; i < ARRAY_SIZE(adis16480_def_filter_freqs); i++) {
-			if (adis16480_def_filter_freqs[i] >= freq) {
-				diff = adis16480_def_filter_freqs[i] - freq;
-				if (diff < best_diff) {
-					best_diff = diff;
-					best_freq = i;
-				}
-			}
-		}
-
-		val &= ~(0x3 << offset);
-		val |= best_freq << offset;
-		val |= enable_mask;
-	}
-
-	return adis_write_reg_16(&st->adis, reg, val);
-}
-
-static int adis16480_read_raw(struct iio_dev *indio_dev,
-	const struct iio_chan_spec *chan, int *val, int *val2, long info)
-{
-	switch (info) {
-	case IIO_CHAN_INFO_RAW:
-		return adis_single_conversion(indio_dev, chan, 0, val);
-	case IIO_CHAN_INFO_SCALE:
-		switch (chan->type) {
-		case IIO_ANGL_VEL:
-			*val = 0;
-			*val2 = IIO_DEGREE_TO_RAD(20000); /* 0.02 degree/sec */
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_ACCEL:
-			*val = 0;
-			*val2 = IIO_G_TO_M_S_2(800); /* 0.8 mg */
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_MAGN:
-			*val = 0;
-			*val2 = 100; /* 0.0001 gauss */
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_TEMP:
-			*val = 5;
-			*val2 = 650000; /* 5.65 milli degree Celsius */
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_PRESSURE:
-			*val = 0;
-			*val2 = 4000; /* 40ubar = 0.004 kPa */
-			return IIO_VAL_INT_PLUS_MICRO;
-		default:
-			return -EINVAL;
-		}
-	case IIO_CHAN_INFO_OFFSET:
-		/* Only the temperature channel has a offset */
-		*val = 4425; /* 25 degree Celsius = 0x0000 */
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		return adis16480_get_calibbias(indio_dev, chan, val);
-	case IIO_CHAN_INFO_CALIBSCALE:
-		return adis16480_get_calibscale(indio_dev, chan, val);
-	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
-		return adis16480_get_filter_freq(indio_dev, chan, val);
-	default:
-		return -EINVAL;
-	}
-}
-
-static int adis16480_write_raw(struct iio_dev *indio_dev,
-	const struct iio_chan_spec *chan, int val, int val2, long info)
-{
-	switch (info) {
-	case IIO_CHAN_INFO_CALIBBIAS:
-		return adis16480_set_calibbias(indio_dev, chan, val);
-	case IIO_CHAN_INFO_CALIBSCALE:
-		return adis16480_set_calibscale(indio_dev, chan, val);
-	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
-		return adis16480_set_filter_freq(indio_dev, chan, val);
-	default:
-		return -EINVAL;
-	}
-}
-
-#define ADIS16480_MOD_CHANNEL(_type, _mod, _address, _si, _info_sep, _bits) \
-	{ \
-		.type = (_type), \
-		.modified = 1, \
-		.channel2 = (_mod), \
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
-			BIT(IIO_CHAN_INFO_CALIBBIAS) | \
-			_info_sep, \
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
-		.address = (_address), \
-		.scan_index = (_si), \
-		.scan_type = { \
-			.sign = 's', \
-			.realbits = (_bits), \
-			.storagebits = (_bits), \
-			.endianness = IIO_BE, \
-		}, \
-	}
-
-#define ADIS16480_GYRO_CHANNEL(_mod) \
-	ADIS16480_MOD_CHANNEL(IIO_ANGL_VEL, IIO_MOD_ ## _mod, \
-	ADIS16480_REG_ ## _mod ## _GYRO_OUT, ADIS16480_SCAN_GYRO_ ## _mod, \
-	BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY) | \
-	BIT(IIO_CHAN_INFO_CALIBSCALE), \
-	32)
-
-#define ADIS16480_ACCEL_CHANNEL(_mod) \
-	ADIS16480_MOD_CHANNEL(IIO_ACCEL, IIO_MOD_ ## _mod, \
-	ADIS16480_REG_ ## _mod ## _ACCEL_OUT, ADIS16480_SCAN_ACCEL_ ## _mod, \
-	BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY) | \
-	BIT(IIO_CHAN_INFO_CALIBSCALE), \
-	32)
-
-#define ADIS16480_MAGN_CHANNEL(_mod) \
-	ADIS16480_MOD_CHANNEL(IIO_MAGN, IIO_MOD_ ## _mod, \
-	ADIS16480_REG_ ## _mod ## _MAGN_OUT, ADIS16480_SCAN_MAGN_ ## _mod, \
-	BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY), \
-	16)
-
-#define ADIS16480_PRESSURE_CHANNEL() \
-	{ \
-		.type = IIO_PRESSURE, \
-		.indexed = 1, \
-		.channel = 0, \
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
-			BIT(IIO_CHAN_INFO_CALIBBIAS) | \
-			BIT(IIO_CHAN_INFO_SCALE), \
-		.address = ADIS16480_REG_BAROM_OUT, \
-		.scan_index = ADIS16480_SCAN_BARO, \
-		.scan_type = { \
-			.sign = 's', \
-			.realbits = 32, \
-			.storagebits = 32, \
-			.endianness = IIO_BE, \
-		}, \
-	}
-
-#define ADIS16480_TEMP_CHANNEL() { \
-		.type = IIO_TEMP, \
-		.indexed = 1, \
-		.channel = 0, \
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
-			BIT(IIO_CHAN_INFO_SCALE) | \
-			BIT(IIO_CHAN_INFO_OFFSET), \
-		.address = ADIS16480_REG_TEMP_OUT, \
-		.scan_index = ADIS16480_SCAN_TEMP, \
-		.scan_type = { \
-			.sign = 's', \
-			.realbits = 16, \
-			.storagebits = 16, \
-			.endianness = IIO_BE, \
-		}, \
-	}
-
-static const struct iio_chan_spec adis16480_channels[] = {
-	ADIS16480_GYRO_CHANNEL(X),
-	ADIS16480_GYRO_CHANNEL(Y),
-	ADIS16480_GYRO_CHANNEL(Z),
-	ADIS16480_ACCEL_CHANNEL(X),
-	ADIS16480_ACCEL_CHANNEL(Y),
-	ADIS16480_ACCEL_CHANNEL(Z),
-	ADIS16480_MAGN_CHANNEL(X),
-	ADIS16480_MAGN_CHANNEL(Y),
-	ADIS16480_MAGN_CHANNEL(Z),
-	ADIS16480_PRESSURE_CHANNEL(),
-	ADIS16480_TEMP_CHANNEL(),
-	IIO_CHAN_SOFT_TIMESTAMP(11)
-};
-
-static const struct iio_chan_spec adis16485_channels[] = {
-	ADIS16480_GYRO_CHANNEL(X),
-	ADIS16480_GYRO_CHANNEL(Y),
-	ADIS16480_GYRO_CHANNEL(Z),
-	ADIS16480_ACCEL_CHANNEL(X),
-	ADIS16480_ACCEL_CHANNEL(Y),
-	ADIS16480_ACCEL_CHANNEL(Z),
-	ADIS16480_TEMP_CHANNEL(),
-	IIO_CHAN_SOFT_TIMESTAMP(7)
-};
-
-enum adis16480_variant {
-	ADIS16375,
-	ADIS16480,
-	ADIS16485,
-	ADIS16488,
-};
-
-static const struct adis16480_chip_info adis16480_chip_info[] = {
-	[ADIS16375] = {
-		.channels = adis16485_channels,
-		.num_channels = ARRAY_SIZE(adis16485_channels),
-	},
-	[ADIS16480] = {
-		.channels = adis16480_channels,
-		.num_channels = ARRAY_SIZE(adis16480_channels),
-	},
-	[ADIS16485] = {
-		.channels = adis16485_channels,
-		.num_channels = ARRAY_SIZE(adis16485_channels),
-	},
-	[ADIS16488] = {
-		.channels = adis16480_channels,
-		.num_channels = ARRAY_SIZE(adis16480_channels),
-	},
-};
-
-static struct attribute *adis16480_attributes[] = {
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group adis16480_attribute_group = {
-	.attrs = adis16480_attributes,
-};
-
-static const struct iio_info adis16480_info = {
-	.attrs = &adis16480_attribute_group,
-	.read_raw = &adis16480_read_raw,
-	.write_raw = &adis16480_write_raw,
-	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
-};
-
-static int adis16480_stop_device(struct iio_dev *indio_dev)
-{
-	struct adis16480 *st = iio_priv(indio_dev);
-	int ret;
-
-	ret = adis_write_reg_16(&st->adis, ADIS16480_REG_SLP_CNT, BIT(9));
-	if (ret)
-		dev_err(&indio_dev->dev,
-			"Could not power down device: %d\n", ret);
-
-	return ret;
-}
-
-static int adis16480_enable_irq(struct adis *adis, bool enable)
-{
-	return adis_write_reg_16(adis, ADIS16480_REG_FNCTIO_CTRL,
-		enable ? BIT(3) : 0);
-}
-
-static int adis16480_initial_setup(struct iio_dev *indio_dev)
-{
-	struct adis16480 *st = iio_priv(indio_dev);
-	uint16_t prod_id;
-	unsigned int device_id;
-	int ret;
-
-	adis_reset(&st->adis);
-	msleep(70);
-
-	ret = adis_write_reg_16(&st->adis, ADIS16480_REG_GLOB_CMD, BIT(1));
-	if (ret)
-		return ret;
-	msleep(30);
-
-	ret = adis_check_status(&st->adis);
-	if (ret)
-		return ret;
-
-	ret = adis_read_reg_16(&st->adis, ADIS16480_REG_PROD_ID, &prod_id);
-	if (ret)
-		return ret;
-
-	sscanf(indio_dev->name, "adis%u\n", &device_id);
-
-	if (prod_id != device_id)
-		dev_warn(&indio_dev->dev, "Device ID(%u) and product ID(%u) do not match.",
-				device_id, prod_id);
-
-	return 0;
-}
-
-#define ADIS16480_DIAG_STAT_XGYRO_FAIL 0
-#define ADIS16480_DIAG_STAT_YGYRO_FAIL 1
-#define ADIS16480_DIAG_STAT_ZGYRO_FAIL 2
-#define ADIS16480_DIAG_STAT_XACCL_FAIL 3
-#define ADIS16480_DIAG_STAT_YACCL_FAIL 4
-#define ADIS16480_DIAG_STAT_ZACCL_FAIL 5
-#define ADIS16480_DIAG_STAT_XMAGN_FAIL 8
-#define ADIS16480_DIAG_STAT_YMAGN_FAIL 9
-#define ADIS16480_DIAG_STAT_ZMAGN_FAIL 10
-#define ADIS16480_DIAG_STAT_BARO_FAIL 11
-
-static const char * const adis16480_status_error_msgs[] = {
-	[ADIS16480_DIAG_STAT_XGYRO_FAIL] = "X-axis gyroscope self-test failure",
-	[ADIS16480_DIAG_STAT_YGYRO_FAIL] = "Y-axis gyroscope self-test failure",
-	[ADIS16480_DIAG_STAT_ZGYRO_FAIL] = "Z-axis gyroscope self-test failure",
-	[ADIS16480_DIAG_STAT_XACCL_FAIL] = "X-axis accelerometer self-test failure",
-	[ADIS16480_DIAG_STAT_YACCL_FAIL] = "Y-axis accelerometer self-test failure",
-	[ADIS16480_DIAG_STAT_ZACCL_FAIL] = "Z-axis accelerometer self-test failure",
-	[ADIS16480_DIAG_STAT_XMAGN_FAIL] = "X-axis magnetometer self-test failure",
-	[ADIS16480_DIAG_STAT_YMAGN_FAIL] = "Y-axis magnetometer self-test failure",
-	[ADIS16480_DIAG_STAT_ZMAGN_FAIL] = "Z-axis magnetometer self-test failure",
-	[ADIS16480_DIAG_STAT_BARO_FAIL] = "Barometer self-test failure",
-};
-
-static const struct adis_data adis16480_data = {
-	.diag_stat_reg = ADIS16480_REG_DIAG_STS,
-	.glob_cmd_reg = ADIS16480_REG_GLOB_CMD,
-	.has_paging = true,
-
-	.read_delay = 5,
-	.write_delay = 5,
-
-	.status_error_msgs = adis16480_status_error_msgs,
-	.status_error_mask = BIT(ADIS16480_DIAG_STAT_XGYRO_FAIL) |
-		BIT(ADIS16480_DIAG_STAT_YGYRO_FAIL) |
-		BIT(ADIS16480_DIAG_STAT_ZGYRO_FAIL) |
-		BIT(ADIS16480_DIAG_STAT_XACCL_FAIL) |
-		BIT(ADIS16480_DIAG_STAT_YACCL_FAIL) |
-		BIT(ADIS16480_DIAG_STAT_ZACCL_FAIL) |
-		BIT(ADIS16480_DIAG_STAT_XMAGN_FAIL) |
-		BIT(ADIS16480_DIAG_STAT_YMAGN_FAIL) |
-		BIT(ADIS16480_DIAG_STAT_ZMAGN_FAIL) |
-		BIT(ADIS16480_DIAG_STAT_BARO_FAIL),
-
-	.enable_irq = adis16480_enable_irq,
-};
-
-static int adis16480_probe(struct spi_device *spi)
-{
-	const struct spi_device_id *id = spi_get_device_id(spi);
-	struct iio_dev *indio_dev;
-	struct adis16480 *st;
-	int ret;
-
-	indio_dev = iio_device_alloc(sizeof(*st));
-	if (indio_dev == NULL)
-		return -ENOMEM;
-
-	spi_set_drvdata(spi, indio_dev);
-
-	st = iio_priv(indio_dev);
-
-	st->chip_info = &adis16480_chip_info[id->driver_data];
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->name = spi_get_device_id(spi)->name;
-	indio_dev->channels = st->chip_info->channels;
-	indio_dev->num_channels = st->chip_info->num_channels;
-	indio_dev->info = &adis16480_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = adis_init(&st->adis, indio_dev, spi, &adis16480_data);
-	if (ret)
-		goto error_free_dev;
-
-	ret = adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL);
-	if (ret)
-		goto error_free_dev;
-
-	ret = adis16480_initial_setup(indio_dev);
-	if (ret)
-		goto error_cleanup_buffer;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_stop_device;
-
-	adis16480_debugfs_init(indio_dev);
-
-	return 0;
-
-error_stop_device:
-	adis16480_stop_device(indio_dev);
-error_cleanup_buffer:
-	adis_cleanup_buffer_and_trigger(&st->adis, indio_dev);
-error_free_dev:
-	iio_device_free(indio_dev);
-	return ret;
-}
-
-static int adis16480_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis16480 *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	adis16480_stop_device(indio_dev);
-
-	adis_cleanup_buffer_and_trigger(&st->adis, indio_dev);
-
-	iio_device_free(indio_dev);
-
-	return 0;
-}
-
-static const struct spi_device_id adis16480_ids[] = {
-	{ "adis16375", ADIS16375 },
-	{ "adis16480", ADIS16480 },
-	{ "adis16485", ADIS16485 },
-	{ "adis16488", ADIS16488 },
-	{ }
-};
-MODULE_DEVICE_TABLE(spi, adis16480_ids);
-
-static struct spi_driver adis16480_driver = {
-	.driver = {
-		.name = "adis16480",
-		.owner = THIS_MODULE,
-	},
-	.id_table = adis16480_ids,
-	.probe = adis16480_probe,
-	.remove = adis16480_remove,
-};
-module_spi_driver(adis16480_driver);
-
-MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
-MODULE_DESCRIPTION("Analog Devices ADIS16480 IMU driver");
-MODULE_LICENSE("GPL v2");