1 files changed, 0 insertions, 771 deletions

diff --git a/ANDROID_3.4.5/drivers/misc/ad525x_dpot.c b/ANDROID_3.4.5/drivers/misc/ad525x_dpot.c
deleted file mode 100644
index 1d1d4261..00000000
--- a/ANDROID_3.4.5/drivers/misc/ad525x_dpot.c
+++ /dev/null
@@ -1,771 +0,0 @@
-/*
- * ad525x_dpot: Driver for the Analog Devices digital potentiometers
- * Copyright (c) 2009-2010 Analog Devices, Inc.
- * Author: Michael Hennerich <hennerich@blackfin.uclinux.org>
- *
- * DEVID		#Wipers		#Positions 	Resistor Options (kOhm)
- * AD5258		1		64		1, 10, 50, 100
- * AD5259		1		256		5, 10, 50, 100
- * AD5251		2		64		1, 10, 50, 100
- * AD5252		2		256		1, 10, 50, 100
- * AD5255		3		512		25, 250
- * AD5253		4		64		1, 10, 50, 100
- * AD5254		4		256		1, 10, 50, 100
- * AD5160		1		256		5, 10, 50, 100
- * AD5161		1		256		5, 10, 50, 100
- * AD5162		2		256		2.5, 10, 50, 100
- * AD5165		1		256		100
- * AD5200		1		256		10, 50
- * AD5201		1		33		10, 50
- * AD5203		4		64		10, 100
- * AD5204		4		256		10, 50, 100
- * AD5206		6		256		10, 50, 100
- * AD5207		2		256		10, 50, 100
- * AD5231		1		1024		10, 50, 100
- * AD5232		2		256		10, 50, 100
- * AD5233		4		64		10, 50, 100
- * AD5235		2		1024		25, 250
- * AD5260		1		256		20, 50, 200
- * AD5262		2		256		20, 50, 200
- * AD5263		4		256		20, 50, 200
- * AD5290		1		256		10, 50, 100
- * AD5291		1		256		20, 50, 100  (20-TP)
- * AD5292		1		1024		20, 50, 100  (20-TP)
- * AD5293		1		1024		20, 50, 100
- * AD7376		1		128		10, 50, 100, 1M
- * AD8400		1		256		1, 10, 50, 100
- * AD8402		2		256		1, 10, 50, 100
- * AD8403		4		256		1, 10, 50, 100
- * ADN2850		3		512		25, 250
- * AD5241		1		256		10, 100, 1M
- * AD5246		1		128		5, 10, 50, 100
- * AD5247		1		128		5, 10, 50, 100
- * AD5245		1		256		5, 10, 50, 100
- * AD5243		2		256		2.5, 10, 50, 100
- * AD5248		2		256		2.5, 10, 50, 100
- * AD5242		2		256		20, 50, 200
- * AD5280		1		256		20, 50, 200
- * AD5282		2		256		20, 50, 200
- * ADN2860		3		512		25, 250
- * AD5273		1		64		1, 10, 50, 100 (OTP)
- * AD5171		1		64		5, 10, 50, 100 (OTP)
- * AD5170		1		256		2.5, 10, 50, 100 (OTP)
- * AD5172		2		256		2.5, 10, 50, 100 (OTP)
- * AD5173		2		256		2.5, 10, 50, 100 (OTP)
- * AD5270		1		1024		20, 50, 100 (50-TP)
- * AD5271		1		256		20, 50, 100 (50-TP)
- * AD5272		1		1024		20, 50, 100 (50-TP)
- * AD5274		1		256		20, 50, 100 (50-TP)
- *
- * See Documentation/misc-devices/ad525x_dpot.txt for more info.
- *
- * derived from ad5258.c
- * Copyright (c) 2009 Cyber Switching, Inc.
- * Author: Chris Verges <chrisv@cyberswitching.com>
- *
- * derived from ad5252.c
- * Copyright (c) 2006-2011 Michael Hennerich <hennerich@blackfin.uclinux.org>
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-
-#include "ad525x_dpot.h"
-
-/*
- * Client data (each client gets its own)
- */
-
-struct dpot_data {
-	struct ad_dpot_bus_data	bdata;
-	struct mutex update_lock;
-	unsigned rdac_mask;
-	unsigned max_pos;
-	unsigned long devid;
-	unsigned uid;
-	unsigned feat;
-	unsigned wipers;
-	u16 rdac_cache[MAX_RDACS];
-	DECLARE_BITMAP(otp_en_mask, MAX_RDACS);
-};
-
-static inline int dpot_read_d8(struct dpot_data *dpot)
-{
-	return dpot->bdata.bops->read_d8(dpot->bdata.client);
-}
-
-static inline int dpot_read_r8d8(struct dpot_data *dpot, u8 reg)
-{
-	return dpot->bdata.bops->read_r8d8(dpot->bdata.client, reg);
-}
-
-static inline int dpot_read_r8d16(struct dpot_data *dpot, u8 reg)
-{
-	return dpot->bdata.bops->read_r8d16(dpot->bdata.client, reg);
-}
-
-static inline int dpot_write_d8(struct dpot_data *dpot, u8 val)
-{
-	return dpot->bdata.bops->write_d8(dpot->bdata.client, val);
-}
-
-static inline int dpot_write_r8d8(struct dpot_data *dpot, u8 reg, u16 val)
-{
-	return dpot->bdata.bops->write_r8d8(dpot->bdata.client, reg, val);
-}
-
-static inline int dpot_write_r8d16(struct dpot_data *dpot, u8 reg, u16 val)
-{
-	return dpot->bdata.bops->write_r8d16(dpot->bdata.client, reg, val);
-}
-
-static s32 dpot_read_spi(struct dpot_data *dpot, u8 reg)
-{
-	unsigned ctrl = 0;
-	int value;
-
-	if (!(reg & (DPOT_ADDR_EEPROM | DPOT_ADDR_CMD))) {
-
-		if (dpot->feat & F_RDACS_WONLY)
-			return dpot->rdac_cache[reg & DPOT_RDAC_MASK];
-		if (dpot->uid == DPOT_UID(AD5291_ID) ||
-			dpot->uid == DPOT_UID(AD5292_ID) ||
-			dpot->uid == DPOT_UID(AD5293_ID)) {
-
-			value = dpot_read_r8d8(dpot,
-				DPOT_AD5291_READ_RDAC << 2);
-
-			if (dpot->uid == DPOT_UID(AD5291_ID))
-				value = value >> 2;
-
-			return value;
-		} else if (dpot->uid == DPOT_UID(AD5270_ID) ||
-			dpot->uid == DPOT_UID(AD5271_ID)) {
-
-			value = dpot_read_r8d8(dpot,
-				DPOT_AD5270_1_2_4_READ_RDAC << 2);
-
-			if (value < 0)
-				return value;
-
-			if (dpot->uid == DPOT_UID(AD5271_ID))
-				value = value >> 2;
-
-			return value;
-		}
-
-		ctrl = DPOT_SPI_READ_RDAC;
-	} else if (reg & DPOT_ADDR_EEPROM) {
-		ctrl = DPOT_SPI_READ_EEPROM;
-	}
-
-	if (dpot->feat & F_SPI_16BIT)
-		return dpot_read_r8d8(dpot, ctrl);
-	else if (dpot->feat & F_SPI_24BIT)
-		return dpot_read_r8d16(dpot, ctrl);
-
-	return -EFAULT;
-}
-
-static s32 dpot_read_i2c(struct dpot_data *dpot, u8 reg)
-{
-	int value;
-	unsigned ctrl = 0;
-	switch (dpot->uid) {
-	case DPOT_UID(AD5246_ID):
-	case DPOT_UID(AD5247_ID):
-		return dpot_read_d8(dpot);
-	case DPOT_UID(AD5245_ID):
-	case DPOT_UID(AD5241_ID):
-	case DPOT_UID(AD5242_ID):
-	case DPOT_UID(AD5243_ID):
-	case DPOT_UID(AD5248_ID):
-	case DPOT_UID(AD5280_ID):
-	case DPOT_UID(AD5282_ID):
-		ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ?
-			0 : DPOT_AD5282_RDAC_AB;
-		return dpot_read_r8d8(dpot, ctrl);
-	case DPOT_UID(AD5170_ID):
-	case DPOT_UID(AD5171_ID):
-	case DPOT_UID(AD5273_ID):
-			return dpot_read_d8(dpot);
-	case DPOT_UID(AD5172_ID):
-	case DPOT_UID(AD5173_ID):
-		ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ?
-			0 : DPOT_AD5172_3_A0;
-		return dpot_read_r8d8(dpot, ctrl);
-	case DPOT_UID(AD5272_ID):
-	case DPOT_UID(AD5274_ID):
-			dpot_write_r8d8(dpot,
-				(DPOT_AD5270_1_2_4_READ_RDAC << 2), 0);
-
-			value = dpot_read_r8d16(dpot,
-				DPOT_AD5270_1_2_4_RDAC << 2);
-
-			if (value < 0)
-				return value;
-			/*
-			 * AD5272/AD5274 returns high byte first, however
-			 * underling smbus expects low byte first.
-			 */
-			value = swab16(value);
-
-			if (dpot->uid == DPOT_UID(AD5271_ID))
-				value = value >> 2;
-		return value;
-	default:
-		if ((reg & DPOT_REG_TOL) || (dpot->max_pos > 256))
-			return dpot_read_r8d16(dpot, (reg & 0xF8) |
-					((reg & 0x7) << 1));
-		else
-			return dpot_read_r8d8(dpot, reg);
-	}
-}
-
-static s32 dpot_read(struct dpot_data *dpot, u8 reg)
-{
-	if (dpot->feat & F_SPI)
-		return dpot_read_spi(dpot, reg);
-	else
-		return dpot_read_i2c(dpot, reg);
-}
-
-static s32 dpot_write_spi(struct dpot_data *dpot, u8 reg, u16 value)
-{
-	unsigned val = 0;
-
-	if (!(reg & (DPOT_ADDR_EEPROM | DPOT_ADDR_CMD | DPOT_ADDR_OTP))) {
-		if (dpot->feat & F_RDACS_WONLY)
-			dpot->rdac_cache[reg & DPOT_RDAC_MASK] = value;
-
-		if (dpot->feat & F_AD_APPDATA) {
-			if (dpot->feat & F_SPI_8BIT) {
-				val = ((reg & DPOT_RDAC_MASK) <<
-					DPOT_MAX_POS(dpot->devid)) |
-					value;
-				return dpot_write_d8(dpot, val);
-			} else if (dpot->feat & F_SPI_16BIT) {
-				val = ((reg & DPOT_RDAC_MASK) <<
-					DPOT_MAX_POS(dpot->devid)) |
-					value;
-				return dpot_write_r8d8(dpot, val >> 8,
-					val & 0xFF);
-			} else
-				BUG();
-		} else {
-			if (dpot->uid == DPOT_UID(AD5291_ID) ||
-				dpot->uid == DPOT_UID(AD5292_ID) ||
-				dpot->uid == DPOT_UID(AD5293_ID)) {
-
-				dpot_write_r8d8(dpot, DPOT_AD5291_CTRLREG << 2,
-						DPOT_AD5291_UNLOCK_CMD);
-
-				if (dpot->uid == DPOT_UID(AD5291_ID))
-					value = value << 2;
-
-				return dpot_write_r8d8(dpot,
-					(DPOT_AD5291_RDAC << 2) |
-					(value >> 8), value & 0xFF);
-			} else if (dpot->uid == DPOT_UID(AD5270_ID) ||
-				dpot->uid == DPOT_UID(AD5271_ID)) {
-				dpot_write_r8d8(dpot,
-						DPOT_AD5270_1_2_4_CTRLREG << 2,
-						DPOT_AD5270_1_2_4_UNLOCK_CMD);
-
-				if (dpot->uid == DPOT_UID(AD5271_ID))
-					value = value << 2;
-
-				return dpot_write_r8d8(dpot,
-					(DPOT_AD5270_1_2_4_RDAC << 2) |
-					(value >> 8), value & 0xFF);
-			}
-			val = DPOT_SPI_RDAC | (reg & DPOT_RDAC_MASK);
-		}
-	} else if (reg & DPOT_ADDR_EEPROM) {
-		val = DPOT_SPI_EEPROM | (reg & DPOT_RDAC_MASK);
-	} else if (reg & DPOT_ADDR_CMD) {
-		switch (reg) {
-		case DPOT_DEC_ALL_6DB:
-			val = DPOT_SPI_DEC_ALL_6DB;
-			break;
-		case DPOT_INC_ALL_6DB:
-			val = DPOT_SPI_INC_ALL_6DB;
-			break;
-		case DPOT_DEC_ALL:
-			val = DPOT_SPI_DEC_ALL;
-			break;
-		case DPOT_INC_ALL:
-			val = DPOT_SPI_INC_ALL;
-			break;
-		}
-	} else if (reg & DPOT_ADDR_OTP) {
-		if (dpot->uid == DPOT_UID(AD5291_ID) ||
-			dpot->uid == DPOT_UID(AD5292_ID)) {
-			return dpot_write_r8d8(dpot,
-				DPOT_AD5291_STORE_XTPM << 2, 0);
-		} else if (dpot->uid == DPOT_UID(AD5270_ID) ||
-			dpot->uid == DPOT_UID(AD5271_ID)) {
-			return dpot_write_r8d8(dpot,
-				DPOT_AD5270_1_2_4_STORE_XTPM << 2, 0);
-		}
-	} else
-		BUG();
-
-	if (dpot->feat & F_SPI_16BIT)
-		return dpot_write_r8d8(dpot, val, value);
-	else if (dpot->feat & F_SPI_24BIT)
-		return dpot_write_r8d16(dpot, val, value);
-
-	return -EFAULT;
-}
-
-static s32 dpot_write_i2c(struct dpot_data *dpot, u8 reg, u16 value)
-{
-	/* Only write the instruction byte for certain commands */
-	unsigned tmp = 0, ctrl = 0;
-
-	switch (dpot->uid) {
-	case DPOT_UID(AD5246_ID):
-	case DPOT_UID(AD5247_ID):
-		return dpot_write_d8(dpot, value);
-		break;
-
-	case DPOT_UID(AD5245_ID):
-	case DPOT_UID(AD5241_ID):
-	case DPOT_UID(AD5242_ID):
-	case DPOT_UID(AD5243_ID):
-	case DPOT_UID(AD5248_ID):
-	case DPOT_UID(AD5280_ID):
-	case DPOT_UID(AD5282_ID):
-		ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ?
-			0 : DPOT_AD5282_RDAC_AB;
-		return dpot_write_r8d8(dpot, ctrl, value);
-		break;
-	case DPOT_UID(AD5171_ID):
-	case DPOT_UID(AD5273_ID):
-		if (reg & DPOT_ADDR_OTP) {
-			tmp = dpot_read_d8(dpot);
-			if (tmp >> 6) /* Ready to Program? */
-				return -EFAULT;
-			ctrl = DPOT_AD5273_FUSE;
-		}
-		return dpot_write_r8d8(dpot, ctrl, value);
-		break;
-	case DPOT_UID(AD5172_ID):
-	case DPOT_UID(AD5173_ID):
-		ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ?
-			0 : DPOT_AD5172_3_A0;
-		if (reg & DPOT_ADDR_OTP) {
-			tmp = dpot_read_r8d16(dpot, ctrl);
-			if (tmp >> 14) /* Ready to Program? */
-				return -EFAULT;
-			ctrl |= DPOT_AD5170_2_3_FUSE;
-		}
-		return dpot_write_r8d8(dpot, ctrl, value);
-		break;
-	case DPOT_UID(AD5170_ID):
-		if (reg & DPOT_ADDR_OTP) {
-			tmp = dpot_read_r8d16(dpot, tmp);
-			if (tmp >> 14) /* Ready to Program? */
-				return -EFAULT;
-			ctrl = DPOT_AD5170_2_3_FUSE;
-		}
-		return dpot_write_r8d8(dpot, ctrl, value);
-		break;
-	case DPOT_UID(AD5272_ID):
-	case DPOT_UID(AD5274_ID):
-		dpot_write_r8d8(dpot, DPOT_AD5270_1_2_4_CTRLREG << 2,
-				DPOT_AD5270_1_2_4_UNLOCK_CMD);
-
-		if (reg & DPOT_ADDR_OTP)
-			return dpot_write_r8d8(dpot,
-					DPOT_AD5270_1_2_4_STORE_XTPM << 2, 0);
-
-		if (dpot->uid == DPOT_UID(AD5274_ID))
-			value = value << 2;
-
-		return dpot_write_r8d8(dpot, (DPOT_AD5270_1_2_4_RDAC << 2) |
-				       (value >> 8), value & 0xFF);
-		break;
-	default:
-		if (reg & DPOT_ADDR_CMD)
-			return dpot_write_d8(dpot, reg);
-
-		if (dpot->max_pos > 256)
-			return dpot_write_r8d16(dpot, (reg & 0xF8) |
-						((reg & 0x7) << 1), value);
-		else
-			/* All other registers require instruction + data bytes */
-			return dpot_write_r8d8(dpot, reg, value);
-	}
-}
-
-static s32 dpot_write(struct dpot_data *dpot, u8 reg, u16 value)
-{
-	if (dpot->feat & F_SPI)
-		return dpot_write_spi(dpot, reg, value);
-	else
-		return dpot_write_i2c(dpot, reg, value);
-}
-
-/* sysfs functions */
-
-static ssize_t sysfs_show_reg(struct device *dev,
-			      struct device_attribute *attr,
-			      char *buf, u32 reg)
-{
-	struct dpot_data *data = dev_get_drvdata(dev);
-	s32 value;
-
-	if (reg & DPOT_ADDR_OTP_EN)
-		return sprintf(buf, "%s\n",
-			test_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask) ?
-			"enabled" : "disabled");
-
-
-	mutex_lock(&data->update_lock);
-	value = dpot_read(data, reg);
-	mutex_unlock(&data->update_lock);
-
-	if (value < 0)
-		return -EINVAL;
-	/*
-	 * Let someone else deal with converting this ...
-	 * the tolerance is a two-byte value where the MSB
-	 * is a sign + integer value, and the LSB is a
-	 * decimal value.  See page 18 of the AD5258
-	 * datasheet (Rev. A) for more details.
-	 */
-
-	if (reg & DPOT_REG_TOL)
-		return sprintf(buf, "0x%04x\n", value & 0xFFFF);
-	else
-		return sprintf(buf, "%u\n", value & data->rdac_mask);
-}
-
-static ssize_t sysfs_set_reg(struct device *dev,
-			     struct device_attribute *attr,
-			     const char *buf, size_t count, u32 reg)
-{
-	struct dpot_data *data = dev_get_drvdata(dev);
-	unsigned long value;
-	int err;
-
-	if (reg & DPOT_ADDR_OTP_EN) {
-		if (!strncmp(buf, "enabled", sizeof("enabled")))
-			set_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask);
-		else
-			clear_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask);
-
-		return count;
-	}
-
-	if ((reg & DPOT_ADDR_OTP) &&
-		!test_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask))
-		return -EPERM;
-
-	err = strict_strtoul(buf, 10, &value);
-	if (err)
-		return err;
-
-	if (value > data->rdac_mask)
-		value = data->rdac_mask;
-
-	mutex_lock(&data->update_lock);
-	dpot_write(data, reg, value);
-	if (reg & DPOT_ADDR_EEPROM)
-		msleep(26);	/* Sleep while the EEPROM updates */
-	else if (reg & DPOT_ADDR_OTP)
-		msleep(400);	/* Sleep while the OTP updates */
-	mutex_unlock(&data->update_lock);
-
-	return count;
-}
-
-static ssize_t sysfs_do_cmd(struct device *dev,
-			    struct device_attribute *attr,
-			    const char *buf, size_t count, u32 reg)
-{
-	struct dpot_data *data = dev_get_drvdata(dev);
-
-	mutex_lock(&data->update_lock);
-	dpot_write(data, reg, 0);
-	mutex_unlock(&data->update_lock);
-
-	return count;
-}
-
-/* ------------------------------------------------------------------------- */
-
-#define DPOT_DEVICE_SHOW(_name, _reg) static ssize_t \
-show_##_name(struct device *dev, \
-			  struct device_attribute *attr, char *buf) \
-{ \
-	return sysfs_show_reg(dev, attr, buf, _reg); \
-}
-
-#define DPOT_DEVICE_SET(_name, _reg) static ssize_t \
-set_##_name(struct device *dev, \
-			 struct device_attribute *attr, \
-			 const char *buf, size_t count) \
-{ \
-	return sysfs_set_reg(dev, attr, buf, count, _reg); \
-}
-
-#define DPOT_DEVICE_SHOW_SET(name, reg) \
-DPOT_DEVICE_SHOW(name, reg) \
-DPOT_DEVICE_SET(name, reg) \
-static DEVICE_ATTR(name, S_IWUSR | S_IRUGO, show_##name, set_##name);
-
-#define DPOT_DEVICE_SHOW_ONLY(name, reg) \
-DPOT_DEVICE_SHOW(name, reg) \
-static DEVICE_ATTR(name, S_IWUSR | S_IRUGO, show_##name, NULL);
-
-DPOT_DEVICE_SHOW_SET(rdac0, DPOT_ADDR_RDAC | DPOT_RDAC0);
-DPOT_DEVICE_SHOW_SET(eeprom0, DPOT_ADDR_EEPROM | DPOT_RDAC0);
-DPOT_DEVICE_SHOW_ONLY(tolerance0, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC0);
-DPOT_DEVICE_SHOW_SET(otp0, DPOT_ADDR_OTP | DPOT_RDAC0);
-DPOT_DEVICE_SHOW_SET(otp0en, DPOT_ADDR_OTP_EN | DPOT_RDAC0);
-
-DPOT_DEVICE_SHOW_SET(rdac1, DPOT_ADDR_RDAC | DPOT_RDAC1);
-DPOT_DEVICE_SHOW_SET(eeprom1, DPOT_ADDR_EEPROM | DPOT_RDAC1);
-DPOT_DEVICE_SHOW_ONLY(tolerance1, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC1);
-DPOT_DEVICE_SHOW_SET(otp1, DPOT_ADDR_OTP | DPOT_RDAC1);
-DPOT_DEVICE_SHOW_SET(otp1en, DPOT_ADDR_OTP_EN | DPOT_RDAC1);
-
-DPOT_DEVICE_SHOW_SET(rdac2, DPOT_ADDR_RDAC | DPOT_RDAC2);
-DPOT_DEVICE_SHOW_SET(eeprom2, DPOT_ADDR_EEPROM | DPOT_RDAC2);
-DPOT_DEVICE_SHOW_ONLY(tolerance2, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC2);
-DPOT_DEVICE_SHOW_SET(otp2, DPOT_ADDR_OTP | DPOT_RDAC2);
-DPOT_DEVICE_SHOW_SET(otp2en, DPOT_ADDR_OTP_EN | DPOT_RDAC2);
-
-DPOT_DEVICE_SHOW_SET(rdac3, DPOT_ADDR_RDAC | DPOT_RDAC3);
-DPOT_DEVICE_SHOW_SET(eeprom3, DPOT_ADDR_EEPROM | DPOT_RDAC3);
-DPOT_DEVICE_SHOW_ONLY(tolerance3, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC3);
-DPOT_DEVICE_SHOW_SET(otp3, DPOT_ADDR_OTP | DPOT_RDAC3);
-DPOT_DEVICE_SHOW_SET(otp3en, DPOT_ADDR_OTP_EN | DPOT_RDAC3);
-
-DPOT_DEVICE_SHOW_SET(rdac4, DPOT_ADDR_RDAC | DPOT_RDAC4);
-DPOT_DEVICE_SHOW_SET(eeprom4, DPOT_ADDR_EEPROM | DPOT_RDAC4);
-DPOT_DEVICE_SHOW_ONLY(tolerance4, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC4);
-DPOT_DEVICE_SHOW_SET(otp4, DPOT_ADDR_OTP | DPOT_RDAC4);
-DPOT_DEVICE_SHOW_SET(otp4en, DPOT_ADDR_OTP_EN | DPOT_RDAC4);
-
-DPOT_DEVICE_SHOW_SET(rdac5, DPOT_ADDR_RDAC | DPOT_RDAC5);
-DPOT_DEVICE_SHOW_SET(eeprom5, DPOT_ADDR_EEPROM | DPOT_RDAC5);
-DPOT_DEVICE_SHOW_ONLY(tolerance5, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC5);
-DPOT_DEVICE_SHOW_SET(otp5, DPOT_ADDR_OTP | DPOT_RDAC5);
-DPOT_DEVICE_SHOW_SET(otp5en, DPOT_ADDR_OTP_EN | DPOT_RDAC5);
-
-static const struct attribute *dpot_attrib_wipers[] = {
-	&dev_attr_rdac0.attr,
-	&dev_attr_rdac1.attr,
-	&dev_attr_rdac2.attr,
-	&dev_attr_rdac3.attr,
-	&dev_attr_rdac4.attr,
-	&dev_attr_rdac5.attr,
-	NULL
-};
-
-static const struct attribute *dpot_attrib_eeprom[] = {
-	&dev_attr_eeprom0.attr,
-	&dev_attr_eeprom1.attr,
-	&dev_attr_eeprom2.attr,
-	&dev_attr_eeprom3.attr,
-	&dev_attr_eeprom4.attr,
-	&dev_attr_eeprom5.attr,
-	NULL
-};
-
-static const struct attribute *dpot_attrib_otp[] = {
-	&dev_attr_otp0.attr,
-	&dev_attr_otp1.attr,
-	&dev_attr_otp2.attr,
-	&dev_attr_otp3.attr,
-	&dev_attr_otp4.attr,
-	&dev_attr_otp5.attr,
-	NULL
-};
-
-static const struct attribute *dpot_attrib_otp_en[] = {
-	&dev_attr_otp0en.attr,
-	&dev_attr_otp1en.attr,
-	&dev_attr_otp2en.attr,
-	&dev_attr_otp3en.attr,
-	&dev_attr_otp4en.attr,
-	&dev_attr_otp5en.attr,
-	NULL
-};
-
-static const struct attribute *dpot_attrib_tolerance[] = {
-	&dev_attr_tolerance0.attr,
-	&dev_attr_tolerance1.attr,
-	&dev_attr_tolerance2.attr,
-	&dev_attr_tolerance3.attr,
-	&dev_attr_tolerance4.attr,
-	&dev_attr_tolerance5.attr,
-	NULL
-};
-
-/* ------------------------------------------------------------------------- */
-
-#define DPOT_DEVICE_DO_CMD(_name, _cmd) static ssize_t \
-set_##_name(struct device *dev, \
-			 struct device_attribute *attr, \
-			 const char *buf, size_t count) \
-{ \
-	return sysfs_do_cmd(dev, attr, buf, count, _cmd); \
-} \
-static DEVICE_ATTR(_name, S_IWUSR | S_IRUGO, NULL, set_##_name);
-
-DPOT_DEVICE_DO_CMD(inc_all, DPOT_INC_ALL);
-DPOT_DEVICE_DO_CMD(dec_all, DPOT_DEC_ALL);
-DPOT_DEVICE_DO_CMD(inc_all_6db, DPOT_INC_ALL_6DB);
-DPOT_DEVICE_DO_CMD(dec_all_6db, DPOT_DEC_ALL_6DB);
-
-static struct attribute *ad525x_attributes_commands[] = {
-	&dev_attr_inc_all.attr,
-	&dev_attr_dec_all.attr,
-	&dev_attr_inc_all_6db.attr,
-	&dev_attr_dec_all_6db.attr,
-	NULL
-};
-
-static const struct attribute_group ad525x_group_commands = {
-	.attrs = ad525x_attributes_commands,
-};
-
-__devinit int ad_dpot_add_files(struct device *dev,
-		unsigned features, unsigned rdac)
-{
-	int err = sysfs_create_file(&dev->kobj,
-		dpot_attrib_wipers[rdac]);
-	if (features & F_CMD_EEP)
-		err |= sysfs_create_file(&dev->kobj,
-			dpot_attrib_eeprom[rdac]);
-	if (features & F_CMD_TOL)
-		err |= sysfs_create_file(&dev->kobj,
-			dpot_attrib_tolerance[rdac]);
-	if (features & F_CMD_OTP) {
-		err |= sysfs_create_file(&dev->kobj,
-			dpot_attrib_otp_en[rdac]);
-		err |= sysfs_create_file(&dev->kobj,
-			dpot_attrib_otp[rdac]);
-	}
-
-	if (err)
-		dev_err(dev, "failed to register sysfs hooks for RDAC%d\n",
-			rdac);
-
-	return err;
-}
-
-inline void ad_dpot_remove_files(struct device *dev,
-		unsigned features, unsigned rdac)
-{
-	sysfs_remove_file(&dev->kobj,
-		dpot_attrib_wipers[rdac]);
-	if (features & F_CMD_EEP)
-		sysfs_remove_file(&dev->kobj,
-			dpot_attrib_eeprom[rdac]);
-	if (features & F_CMD_TOL)
-		sysfs_remove_file(&dev->kobj,
-			dpot_attrib_tolerance[rdac]);
-	if (features & F_CMD_OTP) {
-		sysfs_remove_file(&dev->kobj,
-			dpot_attrib_otp_en[rdac]);
-		sysfs_remove_file(&dev->kobj,
-			dpot_attrib_otp[rdac]);
-	}
-}
-
-int __devinit ad_dpot_probe(struct device *dev,
-		struct ad_dpot_bus_data *bdata, unsigned long devid,
-			    const char *name)
-{
-
-	struct dpot_data *data;
-	int i, err = 0;
-
-	data = kzalloc(sizeof(struct dpot_data), GFP_KERNEL);
-	if (!data) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	dev_set_drvdata(dev, data);
-	mutex_init(&data->update_lock);
-
-	data->bdata = *bdata;
-	data->devid = devid;
-
-	data->max_pos = 1 << DPOT_MAX_POS(devid);
-	data->rdac_mask = data->max_pos - 1;
-	data->feat = DPOT_FEAT(devid);
-	data->uid = DPOT_UID(devid);
-	data->wipers = DPOT_WIPERS(devid);
-
-	for (i = DPOT_RDAC0; i < MAX_RDACS; i++)
-		if (data->wipers & (1 << i)) {
-			err = ad_dpot_add_files(dev, data->feat, i);
-			if (err)
-				goto exit_remove_files;
-			/* power-up midscale */
-			if (data->feat & F_RDACS_WONLY)
-				data->rdac_cache[i] = data->max_pos / 2;
-		}
-
-	if (data->feat & F_CMD_INC)
-		err = sysfs_create_group(&dev->kobj, &ad525x_group_commands);
-
-	if (err) {
-		dev_err(dev, "failed to register sysfs hooks\n");
-		goto exit_free;
-	}
-
-	dev_info(dev, "%s %d-Position Digital Potentiometer registered\n",
-		 name, data->max_pos);
-
-	return 0;
-
-exit_remove_files:
-	for (i = DPOT_RDAC0; i < MAX_RDACS; i++)
-		if (data->wipers & (1 << i))
-			ad_dpot_remove_files(dev, data->feat, i);
-
-exit_free:
-	kfree(data);
-	dev_set_drvdata(dev, NULL);
-exit:
-	dev_err(dev, "failed to create client for %s ID 0x%lX\n",
-		name, devid);
-	return err;
-}
-EXPORT_SYMBOL(ad_dpot_probe);
-
-__devexit int ad_dpot_remove(struct device *dev)
-{
-	struct dpot_data *data = dev_get_drvdata(dev);
-	int i;
-
-	for (i = DPOT_RDAC0; i < MAX_RDACS; i++)
-		if (data->wipers & (1 << i))
-			ad_dpot_remove_files(dev, data->feat, i);
-
-	kfree(data);
-
-	return 0;
-}
-EXPORT_SYMBOL(ad_dpot_remove);
-
-
-MODULE_AUTHOR("Chris Verges <chrisv@cyberswitching.com>, "
-	      "Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Digital potentiometer driver");
-MODULE_LICENSE("GPL");