mfd: move drivers/i2c/chips/menelaus.c to drivers/mfd

ove the menelaus driver from drivers/i2c/chips to drivers/mfd
since it's more of a multi-function device than anything else,
and since Jean is trying to vanish drivers/i2c/chips ASAP.

One way to think of these chips are as the PMIC family most
used with OMAP2 generation chips.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

3 files changed, 0 insertions, 1296 deletions

diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index fa69c992c44..864ac561fdb 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -151,16 +151,6 @@ config SENSORS_TSL2550
 	  This driver can also be built as a module.  If so, the module
 	  will be called tsl2550.
 
-config MENELAUS
-	bool "TWL92330/Menelaus PM chip"
-	depends on I2C=y && ARCH_OMAP24XX
-	help
-	  If you say yes here you get support for the Texas Instruments
-	  TWL92330/Menelaus Power Management chip. This include voltage
-	  regulators, Dual slot memory card tranceivers, real-time clock
-	  and other features that are often used in portable devices like
-	  cell phones and PDAs.
-
 config MCU_MPC8349EMITX
 	tristate "MPC8349E-mITX MCU driver"
 	depends on I2C && PPC_83xx
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index 0c7e2f1e0c4..8b95f41a500 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -19,7 +19,6 @@ obj-$(CONFIG_SENSORS_PCF8574)	+= pcf8574.o
 obj-$(CONFIG_PCF8575)		+= pcf8575.o
 obj-$(CONFIG_SENSORS_PCF8591)	+= pcf8591.o
 obj-$(CONFIG_ISP1301_OMAP)	+= isp1301_omap.o
-obj-$(CONFIG_MENELAUS)		+= menelaus.o
 obj-$(CONFIG_SENSORS_TSL2550)	+= tsl2550.o
 obj-$(CONFIG_MCU_MPC8349EMITX)	+= mcu_mpc8349emitx.o
 
diff --git a/drivers/i2c/chips/menelaus.c b/drivers/i2c/chips/menelaus.c
deleted file mode 100644
index 4b364bae6b3..00000000000
--- a/drivers/i2c/chips/menelaus.c
+++ /dev/null
@@ -1,1285 +0,0 @@
-/*
- * Copyright (C) 2004 Texas Instruments, Inc.
- *
- * Some parts based tps65010.c:
- * Copyright (C) 2004 Texas Instruments and
- * Copyright (C) 2004-2005 David Brownell
- *
- * Some parts based on tlv320aic24.c:
- * Copyright (C) by Kai Svahn <kai.svahn@nokia.com>
- *
- * Changes for interrupt handling and clean-up by
- * Tony Lindgren <tony@atomide.com> and Imre Deak <imre.deak@nokia.com>
- * Cleanup and generalized support for voltage setting by
- * Juha Yrjola
- * Added support for controlling VCORE and regulator sleep states,
- * Amit Kucheria <amit.kucheria@nokia.com>
- * Copyright (C) 2005, 2006 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/module.h>
-#include <linux/i2c.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/mutex.h>
-#include <linux/workqueue.h>
-#include <linux/delay.h>
-#include <linux/rtc.h>
-#include <linux/bcd.h>
-
-#include <asm/mach/irq.h>
-
-#include <mach/gpio.h>
-#include <mach/menelaus.h>
-
-#define DRIVER_NAME			"menelaus"
-
-#define MENELAUS_I2C_ADDRESS		0x72
-
-#define MENELAUS_REV			0x01
-#define MENELAUS_VCORE_CTRL1		0x02
-#define MENELAUS_VCORE_CTRL2		0x03
-#define MENELAUS_VCORE_CTRL3		0x04
-#define MENELAUS_VCORE_CTRL4		0x05
-#define MENELAUS_VCORE_CTRL5		0x06
-#define MENELAUS_DCDC_CTRL1		0x07
-#define MENELAUS_DCDC_CTRL2		0x08
-#define MENELAUS_DCDC_CTRL3		0x09
-#define MENELAUS_LDO_CTRL1		0x0A
-#define MENELAUS_LDO_CTRL2		0x0B
-#define MENELAUS_LDO_CTRL3		0x0C
-#define MENELAUS_LDO_CTRL4		0x0D
-#define MENELAUS_LDO_CTRL5		0x0E
-#define MENELAUS_LDO_CTRL6		0x0F
-#define MENELAUS_LDO_CTRL7		0x10
-#define MENELAUS_LDO_CTRL8		0x11
-#define MENELAUS_SLEEP_CTRL1		0x12
-#define MENELAUS_SLEEP_CTRL2		0x13
-#define MENELAUS_DEVICE_OFF		0x14
-#define MENELAUS_OSC_CTRL		0x15
-#define MENELAUS_DETECT_CTRL		0x16
-#define MENELAUS_INT_MASK1		0x17
-#define MENELAUS_INT_MASK2		0x18
-#define MENELAUS_INT_STATUS1		0x19
-#define MENELAUS_INT_STATUS2		0x1A
-#define MENELAUS_INT_ACK1		0x1B
-#define MENELAUS_INT_ACK2		0x1C
-#define MENELAUS_GPIO_CTRL		0x1D
-#define MENELAUS_GPIO_IN		0x1E
-#define MENELAUS_GPIO_OUT		0x1F
-#define MENELAUS_BBSMS			0x20
-#define MENELAUS_RTC_CTRL		0x21
-#define MENELAUS_RTC_UPDATE		0x22
-#define MENELAUS_RTC_SEC		0x23
-#define MENELAUS_RTC_MIN		0x24
-#define MENELAUS_RTC_HR			0x25
-#define MENELAUS_RTC_DAY		0x26
-#define MENELAUS_RTC_MON		0x27
-#define MENELAUS_RTC_YR			0x28
-#define MENELAUS_RTC_WKDAY		0x29
-#define MENELAUS_RTC_AL_SEC		0x2A
-#define MENELAUS_RTC_AL_MIN		0x2B
-#define MENELAUS_RTC_AL_HR		0x2C
-#define MENELAUS_RTC_AL_DAY		0x2D
-#define MENELAUS_RTC_AL_MON		0x2E
-#define MENELAUS_RTC_AL_YR		0x2F
-#define MENELAUS_RTC_COMP_MSB		0x30
-#define MENELAUS_RTC_COMP_LSB		0x31
-#define MENELAUS_S1_PULL_EN		0x32
-#define MENELAUS_S1_PULL_DIR		0x33
-#define MENELAUS_S2_PULL_EN		0x34
-#define MENELAUS_S2_PULL_DIR		0x35
-#define MENELAUS_MCT_CTRL1		0x36
-#define MENELAUS_MCT_CTRL2		0x37
-#define MENELAUS_MCT_CTRL3		0x38
-#define MENELAUS_MCT_PIN_ST		0x39
-#define MENELAUS_DEBOUNCE1		0x3A
-
-#define IH_MENELAUS_IRQS		12
-#define MENELAUS_MMC_S1CD_IRQ		0	/* MMC slot 1 card change */
-#define MENELAUS_MMC_S2CD_IRQ		1	/* MMC slot 2 card change */
-#define MENELAUS_MMC_S1D1_IRQ		2	/* MMC DAT1 low in slot 1 */
-#define MENELAUS_MMC_S2D1_IRQ		3	/* MMC DAT1 low in slot 2 */
-#define MENELAUS_LOWBAT_IRQ		4	/* Low battery */
-#define MENELAUS_HOTDIE_IRQ		5	/* Hot die detect */
-#define MENELAUS_UVLO_IRQ		6	/* UVLO detect */
-#define MENELAUS_TSHUT_IRQ		7	/* Thermal shutdown */
-#define MENELAUS_RTCTMR_IRQ		8	/* RTC timer */
-#define MENELAUS_RTCALM_IRQ		9	/* RTC alarm */
-#define MENELAUS_RTCERR_IRQ		10	/* RTC error */
-#define MENELAUS_PSHBTN_IRQ		11	/* Push button */
-#define MENELAUS_RESERVED12_IRQ		12	/* Reserved */
-#define MENELAUS_RESERVED13_IRQ		13	/* Reserved */
-#define MENELAUS_RESERVED14_IRQ		14	/* Reserved */
-#define MENELAUS_RESERVED15_IRQ		15	/* Reserved */
-
-static void menelaus_work(struct work_struct *_menelaus);
-
-struct menelaus_chip {
-	struct mutex		lock;
-	struct i2c_client	*client;
-	struct work_struct	work;
-#ifdef CONFIG_RTC_DRV_TWL92330
-	struct rtc_device	*rtc;
-	u8			rtc_control;
-	unsigned		uie:1;
-#endif
-	unsigned		vcore_hw_mode:1;
-	u8			mask1, mask2;
-	void			(*handlers[16])(struct menelaus_chip *);
-	void			(*mmc_callback)(void *data, u8 mask);
-	void			*mmc_callback_data;
-};
-
-static struct menelaus_chip *the_menelaus;
-
-static int menelaus_write_reg(int reg, u8 value)
-{
-	int val = i2c_smbus_write_byte_data(the_menelaus->client, reg, value);
-
-	if (val < 0) {
-		pr_err(DRIVER_NAME ": write error");
-		return val;
-	}
-
-	return 0;
-}
-
-static int menelaus_read_reg(int reg)
-{
-	int val = i2c_smbus_read_byte_data(the_menelaus->client, reg);
-
-	if (val < 0)
-		pr_err(DRIVER_NAME ": read error");
-
-	return val;
-}
-
-static int menelaus_enable_irq(int irq)
-{
-	if (irq > 7) {
-		irq -= 8;
-		the_menelaus->mask2 &= ~(1 << irq);
-		return menelaus_write_reg(MENELAUS_INT_MASK2,
-				the_menelaus->mask2);
-	} else {
-		the_menelaus->mask1 &= ~(1 << irq);
-		return menelaus_write_reg(MENELAUS_INT_MASK1,
-				the_menelaus->mask1);
-	}
-}
-
-static int menelaus_disable_irq(int irq)
-{
-	if (irq > 7) {
-		irq -= 8;
-		the_menelaus->mask2 |= (1 << irq);
-		return menelaus_write_reg(MENELAUS_INT_MASK2,
-				the_menelaus->mask2);
-	} else {
-		the_menelaus->mask1 |= (1 << irq);
-		return menelaus_write_reg(MENELAUS_INT_MASK1,
-				the_menelaus->mask1);
-	}
-}
-
-static int menelaus_ack_irq(int irq)
-{
-	if (irq > 7)
-		return menelaus_write_reg(MENELAUS_INT_ACK2, 1 << (irq - 8));
-	else
-		return menelaus_write_reg(MENELAUS_INT_ACK1, 1 << irq);
-}
-
-/* Adds a handler for an interrupt. Does not run in interrupt context */
-static int menelaus_add_irq_work(int irq,
-		void (*handler)(struct menelaus_chip *))
-{
-	int ret = 0;
-
-	mutex_lock(&the_menelaus->lock);
-	the_menelaus->handlers[irq] = handler;
-	ret = menelaus_enable_irq(irq);
-	mutex_unlock(&the_menelaus->lock);
-
-	return ret;
-}
-
-/* Removes handler for an interrupt */
-static int menelaus_remove_irq_work(int irq)
-{
-	int ret = 0;
-
-	mutex_lock(&the_menelaus->lock);
-	ret = menelaus_disable_irq(irq);
-	the_menelaus->handlers[irq] = NULL;
-	mutex_unlock(&the_menelaus->lock);
-
-	return ret;
-}
-
-/*
- * Gets scheduled when a card detect interrupt happens. Note that in some cases
- * this line is wired to card cover switch rather than the card detect switch
- * in each slot. In this case the cards are not seen by menelaus.
- * FIXME: Add handling for D1 too
- */
-static void menelaus_mmc_cd_work(struct menelaus_chip *menelaus_hw)
-{
-	int reg;
-	unsigned char card_mask = 0;
-
-	reg = menelaus_read_reg(MENELAUS_MCT_PIN_ST);
-	if (reg < 0)
-		return;
-
-	if (!(reg & 0x1))
-		card_mask |= (1 << 0);
-
-	if (!(reg & 0x2))
-		card_mask |= (1 << 1);
-
-	if (menelaus_hw->mmc_callback)
-		menelaus_hw->mmc_callback(menelaus_hw->mmc_callback_data,
-					  card_mask);
-}
-
-/*
- * Toggles the MMC slots between open-drain and push-pull mode.
- */
-int menelaus_set_mmc_opendrain(int slot, int enable)
-{
-	int ret, val;
-
-	if (slot != 1 && slot != 2)
-		return -EINVAL;
-	mutex_lock(&the_menelaus->lock);
-	ret = menelaus_read_reg(MENELAUS_MCT_CTRL1);
-	if (ret < 0) {
-		mutex_unlock(&the_menelaus->lock);
-		return ret;
-	}
-	val = ret;
-	if (slot == 1) {
-		if (enable)
-			val |= 1 << 2;
-		else
-			val &= ~(1 << 2);
-	} else {
-		if (enable)
-			val |= 1 << 3;
-		else
-			val &= ~(1 << 3);
-	}
-	ret = menelaus_write_reg(MENELAUS_MCT_CTRL1, val);
-	mutex_unlock(&the_menelaus->lock);
-
-	return ret;
-}
-EXPORT_SYMBOL(menelaus_set_mmc_opendrain);
-
-int menelaus_set_slot_sel(int enable)
-{
-	int ret;
-
-	mutex_lock(&the_menelaus->lock);
-	ret = menelaus_read_reg(MENELAUS_GPIO_CTRL);
-	if (ret < 0)
-		goto out;
-	ret |= 0x02;
-	if (enable)
-		ret |= 1 << 5;
-	else
-		ret &= ~(1 << 5);
-	ret = menelaus_write_reg(MENELAUS_GPIO_CTRL, ret);
-out:
-	mutex_unlock(&the_menelaus->lock);
-	return ret;
-}
-EXPORT_SYMBOL(menelaus_set_slot_sel);
-
-int menelaus_set_mmc_slot(int slot, int enable, int power, int cd_en)
-{
-	int ret, val;
-
-	if (slot != 1 && slot != 2)
-		return -EINVAL;
-	if (power >= 3)
-		return -EINVAL;
-
-	mutex_lock(&the_menelaus->lock);
-
-	ret = menelaus_read_reg(MENELAUS_MCT_CTRL2);
-	if (ret < 0)
-		goto out;
-	val = ret;
-	if (slot == 1) {
-		if (cd_en)
-			val |= (1 << 4) | (1 << 6);
-		else
-			val &= ~((1 << 4) | (1 << 6));
-	} else {
-		if (cd_en)
-			val |= (1 << 5) | (1 << 7);
-		else
-			val &= ~((1 << 5) | (1 << 7));
-	}
-	ret = menelaus_write_reg(MENELAUS_MCT_CTRL2, val);
-	if (ret < 0)
-		goto out;
-
-	ret = menelaus_read_reg(MENELAUS_MCT_CTRL3);
-	if (ret < 0)
-		goto out;
-	val = ret;
-	if (slot == 1) {
-		if (enable)
-			val |= 1 << 0;
-		else
-			val &= ~(1 << 0);
-	} else {
-		int b;
-
-		if (enable)
-			ret |= 1 << 1;
-		else
-			ret &= ~(1 << 1);
-		b = menelaus_read_reg(MENELAUS_MCT_CTRL2);
-		b &= ~0x03;
-		b |= power;
-		ret = menelaus_write_reg(MENELAUS_MCT_CTRL2, b);
-		if (ret < 0)
-			goto out;
-	}
-	/* Disable autonomous shutdown */
-	val &= ~(0x03 << 2);
-	ret = menelaus_write_reg(MENELAUS_MCT_CTRL3, val);
-out:
-	mutex_unlock(&the_menelaus->lock);
-	return ret;
-}
-EXPORT_SYMBOL(menelaus_set_mmc_slot);
-
-int menelaus_register_mmc_callback(void (*callback)(void *data, u8 card_mask),
-				   void *data)
-{
-	int ret = 0;
-
-	the_menelaus->mmc_callback_data = data;
-	the_menelaus->mmc_callback = callback;
-	ret = menelaus_add_irq_work(MENELAUS_MMC_S1CD_IRQ,
-				    menelaus_mmc_cd_work);
-	if (ret < 0)
-		return ret;
-	ret = menelaus_add_irq_work(MENELAUS_MMC_S2CD_IRQ,
-				    menelaus_mmc_cd_work);
-	if (ret < 0)
-		return ret;
-	ret = menelaus_add_irq_work(MENELAUS_MMC_S1D1_IRQ,
-				    menelaus_mmc_cd_work);
-	if (ret < 0)
-		return ret;
-	ret = menelaus_add_irq_work(MENELAUS_MMC_S2D1_IRQ,
-				    menelaus_mmc_cd_work);
-
-	return ret;
-}
-EXPORT_SYMBOL(menelaus_register_mmc_callback);
-
-void menelaus_unregister_mmc_callback(void)
-{
-	menelaus_remove_irq_work(MENELAUS_MMC_S1CD_IRQ);
-	menelaus_remove_irq_work(MENELAUS_MMC_S2CD_IRQ);
-	menelaus_remove_irq_work(MENELAUS_MMC_S1D1_IRQ);
-	menelaus_remove_irq_work(MENELAUS_MMC_S2D1_IRQ);
-
-	the_menelaus->mmc_callback = NULL;
-	the_menelaus->mmc_callback_data = 0;
-}
-EXPORT_SYMBOL(menelaus_unregister_mmc_callback);
-
-struct menelaus_vtg {
-	const char *name;
-	u8 vtg_reg;
-	u8 vtg_shift;
-	u8 vtg_bits;
-	u8 mode_reg;
-};
-
-struct menelaus_vtg_value {
-	u16 vtg;
-	u16 val;
-};
-
-static int menelaus_set_voltage(const struct menelaus_vtg *vtg, int mV,
-				int vtg_val, int mode)
-{
-	int val, ret;
-	struct i2c_client *c = the_menelaus->client;
-
-	mutex_lock(&the_menelaus->lock);
-	if (vtg == 0)
-		goto set_voltage;
-
-	ret = menelaus_read_reg(vtg->vtg_reg);
-	if (ret < 0)
-		goto out;
-	val = ret & ~(((1 << vtg->vtg_bits) - 1) << vtg->vtg_shift);
-	val |= vtg_val << vtg->vtg_shift;
-
-	dev_dbg(&c->dev, "Setting voltage '%s'"
-			 "to %d mV (reg 0x%02x, val 0x%02x)\n",
-			vtg->name, mV, vtg->vtg_reg, val);
-
-	ret = menelaus_write_reg(vtg->vtg_reg, val);
-	if (ret < 0)
-		goto out;
-set_voltage:
-	ret = menelaus_write_reg(vtg->mode_reg, mode);
-out:
-	mutex_unlock(&the_menelaus->lock);
-	if (ret == 0) {
-		/* Wait for voltage to stabilize */
-		msleep(1);
-	}
-	return ret;
-}
-
-static int menelaus_get_vtg_value(int vtg, const struct menelaus_vtg_value *tbl,
-				  int n)
-{
-	int i;
-
-	for (i = 0; i < n; i++, tbl++)
-		if (tbl->vtg == vtg)
-			return tbl->val;
-	return -EINVAL;
-}
-
-/*
- * Vcore can be programmed in two ways:
- * SW-controlled: Required voltage is programmed into VCORE_CTRL1
- * HW-controlled: Required range (roof-floor) is programmed into VCORE_CTRL3
- * and VCORE_CTRL4
- *
- * Call correct 'set' function accordingly
- */
-
-static const struct menelaus_vtg_value vcore_values[] = {
-	{ 1000, 0 },
-	{ 1025, 1 },
-	{ 1050, 2 },
-	{ 1075, 3 },
-	{ 1100, 4 },
-	{ 1125, 5 },
-	{ 1150, 6 },
-	{ 1175, 7 },
-	{ 1200, 8 },
-	{ 1225, 9 },
-	{ 1250, 10 },
-	{ 1275, 11 },
-	{ 1300, 12 },
-	{ 1325, 13 },
-	{ 1350, 14 },
-	{ 1375, 15 },
-	{ 1400, 16 },
-	{ 1425, 17 },
-	{ 1450, 18 },
-};
-
-int menelaus_set_vcore_sw(unsigned int mV)
-{
-	int val, ret;
-	struct i2c_client *c = the_menelaus->client;
-
-	val = menelaus_get_vtg_value(mV, vcore_values,
-				     ARRAY_SIZE(vcore_values));
-	if (val < 0)
-		return -EINVAL;
-
-	dev_dbg(&c->dev, "Setting VCORE to %d mV (val 0x%02x)\n", mV, val);
-
-	/* Set SW mode and the voltage in one go. */
-	mutex_lock(&the_menelaus->lock);
-	ret = menelaus_write_reg(MENELAUS_VCORE_CTRL1, val);
-	if (ret == 0)
-		the_menelaus->vcore_hw_mode = 0;
-	mutex_unlock(&the_menelaus->lock);
-	msleep(1);
-
-	return ret;
-}
-
-int menelaus_set_vcore_hw(unsigned int roof_mV, unsigned int floor_mV)
-{
-	int fval, rval, val, ret;
-	struct i2c_client *c = the_menelaus->client;
-
-	rval = menelaus_get_vtg_value(roof_mV, vcore_values,
-				      ARRAY_SIZE(vcore_values));
-	if (rval < 0)
-		return -EINVAL;
-	fval = menelaus_get_vtg_value(floor_mV, vcore_values,
-				      ARRAY_SIZE(vcore_values));
-	if (fval < 0)
-		return -EINVAL;
-
-	dev_dbg(&c->dev, "Setting VCORE FLOOR to %d mV and ROOF to %d mV\n",
-	       floor_mV, roof_mV);
-
-	mutex_lock(&the_menelaus->lock);
-	ret = menelaus_write_reg(MENELAUS_VCORE_CTRL3, fval);
-	if (ret < 0)
-		goto out;
-	ret = menelaus_write_reg(MENELAUS_VCORE_CTRL4, rval);
-	if (ret < 0)
-		goto out;
-	if (!the_menelaus->vcore_hw_mode) {
-		val = menelaus_read_reg(MENELAUS_VCORE_CTRL1);
-		/* HW mode, turn OFF byte comparator */
-		val |= ((1 << 7) | (1 << 5));
-		ret = menelaus_write_reg(MENELAUS_VCORE_CTRL1, val);
-		the_menelaus->vcore_hw_mode = 1;
-	}
-	msleep(1);
-out:
-	mutex_unlock(&the_menelaus->lock);
-	return ret;
-}
-
-static const struct menelaus_vtg vmem_vtg = {
-	.name = "VMEM",
-	.vtg_reg = MENELAUS_LDO_CTRL1,
-	.vtg_shift = 0,
-	.vtg_bits = 2,
-	.mode_reg = MENELAUS_LDO_CTRL3,
-};
-
-static const struct menelaus_vtg_value vmem_values[] = {
-	{ 1500, 0 },
-	{ 1800, 1 },
-	{ 1900, 2 },
-	{ 2500, 3 },
-};
-
-int menelaus_set_vmem(unsigned int mV)
-{
-	int val;
-
-	if (mV == 0)
-		return menelaus_set_voltage(&vmem_vtg, 0, 0, 0);
-
-	val = menelaus_get_vtg_value(mV, vmem_values, ARRAY_SIZE(vmem_values));
-	if (val < 0)
-		return -EINVAL;
-	return menelaus_set_voltage(&vmem_vtg, mV, val, 0x02);
-}
-EXPORT_SYMBOL(menelaus_set_vmem);
-
-static const struct menelaus_vtg vio_vtg = {
-	.name = "VIO",
-	.vtg_reg = MENELAUS_LDO_CTRL1,
-	.vtg_shift = 2,
-	.vtg_bits = 2,
-	.mode_reg = MENELAUS_LDO_CTRL4,
-};
-
-static const struct menelaus_vtg_value vio_values[] = {
-	{ 1500, 0 },
-	{ 1800, 1 },
-	{ 2500, 2 },
-	{ 2800, 3 },
-};
-
-int menelaus_set_vio(unsigned int mV)
-{
-	int val;
-
-	if (mV == 0)
-		return menelaus_set_voltage(&vio_vtg, 0, 0, 0);
-
-	val = menelaus_get_vtg_value(mV, vio_values, ARRAY_SIZE(vio_values));
-	if (val < 0)
-		return -EINVAL;
-	return menelaus_set_voltage(&vio_vtg, mV, val, 0x02);
-}
-EXPORT_SYMBOL(menelaus_set_vio);
-
-static const struct menelaus_vtg_value vdcdc_values[] = {
-	{ 1500, 0 },
-	{ 1800, 1 },
-	{ 2000, 2 },
-	{ 2200, 3 },
-	{ 2400, 4 },
-	{ 2800, 5 },
-	{ 3000, 6 },
-	{ 3300, 7 },
-};
-
-static const struct menelaus_vtg vdcdc2_vtg = {
-	.name = "VDCDC2",
-	.vtg_reg = MENELAUS_DCDC_CTRL1,
-	.vtg_shift = 0,
-	.vtg_bits = 3,
-	.mode_reg = MENELAUS_DCDC_CTRL2,
-};
-
-static const struct menelaus_vtg vdcdc3_vtg = {
-	.name = "VDCDC3",
-	.vtg_reg = MENELAUS_DCDC_CTRL1,
-	.vtg_shift = 3,
-	.vtg_bits = 3,
-	.mode_reg = MENELAUS_DCDC_CTRL3,
-};
-
-int menelaus_set_vdcdc(int dcdc, unsigned int mV)
-{
-	const struct menelaus_vtg *vtg;
-	int val;
-
-	if (dcdc != 2 && dcdc != 3)
-		return -EINVAL;
-	if (dcdc == 2)
-		vtg = &vdcdc2_vtg;
-	else
-		vtg = &vdcdc3_vtg;
-
-	if (mV == 0)
-		return menelaus_set_voltage(vtg, 0, 0, 0);
-
-	val = menelaus_get_vtg_value(mV, vdcdc_values,
-				     ARRAY_SIZE(vdcdc_values));
-	if (val < 0)
-		return -EINVAL;
-	return menelaus_set_voltage(vtg, mV, val, 0x03);
-}
-
-static const struct menelaus_vtg_value vmmc_values[] = {
-	{ 1850, 0 },
-	{ 2800, 1 },
-	{ 3000, 2 },
-	{ 3100, 3 },
-};
-
-static const struct menelaus_vtg vmmc_vtg = {
-	.name = "VMMC",
-	.vtg_reg = MENELAUS_LDO_CTRL1,
-	.vtg_shift = 6,
-	.vtg_bits = 2,
-	.mode_reg = MENELAUS_LDO_CTRL7,
-};
-
-int menelaus_set_vmmc(unsigned int mV)
-{
-	int val;
-
-	if (mV == 0)
-		return menelaus_set_voltage(&vmmc_vtg, 0, 0, 0);
-
-	val = menelaus_get_vtg_value(mV, vmmc_values, ARRAY_SIZE(vmmc_values));
-	if (val < 0)
-		return -EINVAL;
-	return menelaus_set_voltage(&vmmc_vtg, mV, val, 0x02);
-}
-EXPORT_SYMBOL(menelaus_set_vmmc);
-
-
-static const struct menelaus_vtg_value vaux_values[] = {
-	{ 1500, 0 },
-	{ 1800, 1 },
-	{ 2500, 2 },
-	{ 2800, 3 },
-};
-
-static const struct menelaus_vtg vaux_vtg = {
-	.name = "VAUX",
-	.vtg_reg = MENELAUS_LDO_CTRL1,
-	.vtg_shift = 4,
-	.vtg_bits = 2,
-	.mode_reg = MENELAUS_LDO_CTRL6,
-};
-
-int menelaus_set_vaux(unsigned int mV)
-{
-	int val;
-
-	if (mV == 0)
-		return menelaus_set_voltage(&vaux_vtg, 0, 0, 0);
-
-	val = menelaus_get_vtg_value(mV, vaux_values, ARRAY_SIZE(vaux_values));
-	if (val < 0)
-		return -EINVAL;
-	return menelaus_set_voltage(&vaux_vtg, mV, val, 0x02);
-}
-EXPORT_SYMBOL(menelaus_set_vaux);
-
-int menelaus_get_slot_pin_states(void)
-{
-	return menelaus_read_reg(MENELAUS_MCT_PIN_ST);
-}
-EXPORT_SYMBOL(menelaus_get_slot_pin_states);
-
-int menelaus_set_regulator_sleep(int enable, u32 val)
-{
-	int t, ret;
-	struct i2c_client *c = the_menelaus->client;
-
-	mutex_lock(&the_menelaus->lock);
-	ret = menelaus_write_reg(MENELAUS_SLEEP_CTRL2, val);
-	if (ret < 0)
-		goto out;
-
-	dev_dbg(&c->dev, "regulator sleep configuration: %02x\n", val);
-
-	ret = menelaus_read_reg(MENELAUS_GPIO_CTRL);
-	if (ret < 0)
-		goto out;
-	t = ((1 << 6) | 0x04);
-	if (enable)
-		ret |= t;
-	else
-		ret &= ~t;
-	ret = menelaus_write_reg(MENELAUS_GPIO_CTRL, ret);
-out:
-	mutex_unlock(&the_menelaus->lock);
-	return ret;
-}
-
-/*-----------------------------------------------------------------------*/
-
-/* Handles Menelaus interrupts. Does not run in interrupt context */
-static void menelaus_work(struct work_struct *_menelaus)
-{
-	struct menelaus_chip *menelaus =
-			container_of(_menelaus, struct menelaus_chip, work);
-	void (*handler)(struct menelaus_chip *menelaus);
-
-	while (1) {
-		unsigned isr;
-
-		isr = (menelaus_read_reg(MENELAUS_INT_STATUS2)
-				& ~menelaus->mask2) << 8;
-		isr |= menelaus_read_reg(MENELAUS_INT_STATUS1)
-				& ~menelaus->mask1;
-		if (!isr)
-			break;
-
-		while (isr) {
-			int irq = fls(isr) - 1;
-			isr &= ~(1 << irq);
-
-			mutex_lock(&menelaus->lock);
-			menelaus_disable_irq(irq);
-			menelaus_ack_irq(irq);
-			handler = menelaus->handlers[irq];
-			if (handler)
-				handler(menelaus);
-			menelaus_enable_irq(irq);
-			mutex_unlock(&menelaus->lock);
-		}
-	}
-	enable_irq(menelaus->client->irq);
-}
-
-/*
- * We cannot use I2C in interrupt context, so we just schedule work.
- */
-static irqreturn_t menelaus_irq(int irq, void *_menelaus)
-{
-	struct menelaus_chip *menelaus = _menelaus;
-
-	disable_irq_nosync(irq);
-	(void)schedule_work(&menelaus->work);
-
-	return IRQ_HANDLED;
-}
-
-/*-----------------------------------------------------------------------*/
-
-/*
- * The RTC needs to be set once, then it runs on backup battery power.
- * It supports alarms, including system wake alarms (from some modes);
- * and 1/second IRQs if requested.
- */
-#ifdef CONFIG_RTC_DRV_TWL92330
-
-#define RTC_CTRL_RTC_EN		(1 << 0)
-#define RTC_CTRL_AL_EN		(1 << 1)
-#define RTC_CTRL_MODE12		(1 << 2)
-#define RTC_CTRL_EVERY_MASK	(3 << 3)
-#define RTC_CTRL_EVERY_SEC	(0 << 3)
-#define RTC_CTRL_EVERY_MIN	(1 << 3)
-#define RTC_CTRL_EVERY_HR	(2 << 3)
-#define RTC_CTRL_EVERY_DAY	(3 << 3)
-
-#define RTC_UPDATE_EVERY	0x08
-
-#define RTC_HR_PM		(1 << 7)
-
-static void menelaus_to_time(char *regs, struct rtc_time *t)
-{
-	t->tm_sec = bcd2bin(regs[0]);
-	t->tm_min = bcd2bin(regs[1]);
-	if (the_menelaus->rtc_control & RTC_CTRL_MODE12) {
-		t->tm_hour = bcd2bin(regs[2] & 0x1f) - 1;
-		if (regs[2] & RTC_HR_PM)
-			t->tm_hour += 12;
-	} else
-		t->tm_hour = bcd2bin(regs[2] & 0x3f);
-	t->tm_mday = bcd2bin(regs[3]);
-	t->tm_mon = bcd2bin(regs[4]) - 1;
-	t->tm_year = bcd2bin(regs[5]) + 100;
-}
-
-static int time_to_menelaus(struct rtc_time *t, int regnum)
-{
-	int	hour, status;
-
-	status = menelaus_write_reg(regnum++, bin2bcd(t->tm_sec));
-	if (status < 0)
-		goto fail;
-
-	status = menelaus_write_reg(regnum++, bin2bcd(t->tm_min));
-	if (status < 0)
-		goto fail;
-
-	if (the_menelaus->rtc_control & RTC_CTRL_MODE12) {
-		hour = t->tm_hour + 1;
-		if (hour > 12)
-			hour = RTC_HR_PM | bin2bcd(hour - 12);
-		else
-			hour = bin2bcd(hour);
-	} else
-		hour = bin2bcd(t->tm_hour);
-	status = menelaus_write_reg(regnum++, hour);
-	if (status < 0)
-		goto fail;
-
-	status = menelaus_write_reg(regnum++, bin2bcd(t->tm_mday));
-	if (status < 0)
-		goto fail;
-
-	status = menelaus_write_reg(regnum++, bin2bcd(t->tm_mon + 1));
-	if (status < 0)
-		goto fail;
-
-	status = menelaus_write_reg(regnum++, bin2bcd(t->tm_year - 100));
-	if (status < 0)
-		goto fail;
-
-	return 0;
-fail:
-	dev_err(&the_menelaus->client->dev, "rtc write reg %02x, err %d\n",
-			--regnum, status);
-	return status;
-}
-
-static int menelaus_read_time(struct device *dev, struct rtc_time *t)
-{
-	struct i2c_msg	msg[2];
-	char		regs[7];
-	int		status;
-
-	/* block read date and time registers */
-	regs[0] = MENELAUS_RTC_SEC;
-
-	msg[0].addr = MENELAUS_I2C_ADDRESS;
-	msg[0].flags = 0;
-	msg[0].len = 1;
-	msg[0].buf = regs;
-
-	msg[1].addr = MENELAUS_I2C_ADDRESS;
-	msg[1].flags = I2C_M_RD;
-	msg[1].len = sizeof(regs);
-	msg[1].buf = regs;
-
-	status = i2c_transfer(the_menelaus->client->adapter, msg, 2);
-	if (status != 2) {
-		dev_err(dev, "%s error %d\n", "read", status);
-		return -EIO;
-	}
-
-	menelaus_to_time(regs, t);
-	t->tm_wday = bcd2bin(regs[6]);
-
-	return 0;
-}
-
-static int menelaus_set_time(struct device *dev, struct rtc_time *t)
-{
-	int		status;
-
-	/* write date and time registers */
-	status = time_to_menelaus(t, MENELAUS_RTC_SEC);
-	if (status < 0)
-		return status;
-	status = menelaus_write_reg(MENELAUS_RTC_WKDAY, bin2bcd(t->tm_wday));
-	if (status < 0) {
-		dev_err(&the_menelaus->client->dev, "rtc write reg %02x "
-				"err %d\n", MENELAUS_RTC_WKDAY, status);
-		return status;
-	}
-
-	/* now commit the write */
-	status = menelaus_write_reg(MENELAUS_RTC_UPDATE, RTC_UPDATE_EVERY);
-	if (status < 0)
-		dev_err(&the_menelaus->client->dev, "rtc commit time, err %d\n",
-				status);
-
-	return 0;
-}
-
-static int menelaus_read_alarm(struct device *dev, struct rtc_wkalrm *w)
-{
-	struct i2c_msg	msg[2];
-	char		regs[6];
-	int		status;
-
-	/* block read alarm registers */
-	regs[0] = MENELAUS_RTC_AL_SEC;
-
-	msg[0].addr = MENELAUS_I2C_ADDRESS;
-	msg[0].flags = 0;
-	msg[0].len = 1;
-	msg[0].buf = regs;
-
-	msg[1].addr = MENELAUS_I2C_ADDRESS;
-	msg[1].flags = I2C_M_RD;
-	msg[1].len = sizeof(regs);
-	msg[1].buf = regs;
-
-	status = i2c_transfer(the_menelaus->client->adapter, msg, 2);
-	if (status != 2) {
-		dev_err(dev, "%s error %d\n", "alarm read", status);
-		return -EIO;
-	}
-
-	menelaus_to_time(regs, &w->time);
-
-	w->enabled = !!(the_menelaus->rtc_control & RTC_CTRL_AL_EN);
-
-	/* NOTE we *could* check if actually pending... */
-	w->pending = 0;
-
-	return 0;
-}
-
-static int menelaus_set_alarm(struct device *dev, struct rtc_wkalrm *w)
-{
-	int		status;
-
-	if (the_menelaus->client->irq <= 0 && w->enabled)
-		return -ENODEV;
-
-	/* clear previous alarm enable */
-	if (the_menelaus->rtc_control & RTC_CTRL_AL_EN) {
-		the_menelaus->rtc_control &= ~RTC_CTRL_AL_EN;
-		status = menelaus_write_reg(MENELAUS_RTC_CTRL,
-				the_menelaus->rtc_control);
-		if (status < 0)
-			return status;
-	}
-
-	/* write alarm registers */
-	status = time_to_menelaus(&w->time, MENELAUS_RTC_AL_SEC);
-	if (status < 0)
-		return status;
-
-	/* enable alarm if requested */
-	if (w->enabled) {
-		the_menelaus->rtc_control |= RTC_CTRL_AL_EN;
-		status = menelaus_write_reg(MENELAUS_RTC_CTRL,
-				the_menelaus->rtc_control);
-	}
-
-	return status;
-}
-
-#ifdef CONFIG_RTC_INTF_DEV
-
-static void menelaus_rtc_update_work(struct menelaus_chip *m)
-{
-	/* report 1/sec update */
-	local_irq_disable();
-	rtc_update_irq(m->rtc, 1, RTC_IRQF | RTC_UF);
-	local_irq_enable();
-}
-
-static int menelaus_ioctl(struct device *dev, unsigned cmd, unsigned long arg)
-{
-	int	status;
-
-	if (the_menelaus->client->irq <= 0)
-		return -ENOIOCTLCMD;
-
-	switch (cmd) {
-	/* alarm IRQ */
-	case RTC_AIE_ON:
-		if (the_menelaus->rtc_control & RTC_CTRL_AL_EN)
-			return 0;
-		the_menelaus->rtc_control |= RTC_CTRL_AL_EN;
-		break;
-	case RTC_AIE_OFF:
-		if (!(the_menelaus->rtc_control & RTC_CTRL_AL_EN))
-			return 0;
-		the_menelaus->rtc_control &= ~RTC_CTRL_AL_EN;
-		break;
-	/* 1/second "update" IRQ */
-	case RTC_UIE_ON:
-		if (the_menelaus->uie)
-			return 0;
-		status = menelaus_remove_irq_work(MENELAUS_RTCTMR_IRQ);
-		status = menelaus_add_irq_work(MENELAUS_RTCTMR_IRQ,
-				menelaus_rtc_update_work);
-		if (status == 0)
-			the_menelaus->uie = 1;
-		return status;
-	case RTC_UIE_OFF:
-		if (!the_menelaus->uie)
-			return 0;
-		status = menelaus_remove_irq_work(MENELAUS_RTCTMR_IRQ);
-		if (status == 0)
-			the_menelaus->uie = 0;
-		return status;
-	default:
-		return -ENOIOCTLCMD;
-	}
-	return menelaus_write_reg(MENELAUS_RTC_CTRL, the_menelaus->rtc_control);
-}
-
-#else
-#define menelaus_ioctl	NULL
-#endif
-
-/* REVISIT no compensation register support ... */
-
-static const struct rtc_class_ops menelaus_rtc_ops = {
-	.ioctl			= menelaus_ioctl,
-	.read_time		= menelaus_read_time,
-	.set_time		= menelaus_set_time,
-	.read_alarm		= menelaus_read_alarm,
-	.set_alarm		= menelaus_set_alarm,
-};
-
-static void menelaus_rtc_alarm_work(struct menelaus_chip *m)
-{
-	/* report alarm */
-	local_irq_disable();
-	rtc_update_irq(m->rtc, 1, RTC_IRQF | RTC_AF);
-	local_irq_enable();
-
-	/* then disable it; alarms are oneshot */
-	the_menelaus->rtc_control &= ~RTC_CTRL_AL_EN;
-	menelaus_write_reg(MENELAUS_RTC_CTRL, the_menelaus->rtc_control);
-}
-
-static inline void menelaus_rtc_init(struct menelaus_chip *m)
-{
-	int	alarm = (m->client->irq > 0);
-
-	/* assume 32KDETEN pin is pulled high */
-	if (!(menelaus_read_reg(MENELAUS_OSC_CTRL) & 0x80)) {
-		dev_dbg(&m->client->dev, "no 32k oscillator\n");
-		return;
-	}
-
-	/* support RTC alarm; it can issue wakeups */
-	if (alarm) {
-		if (menelaus_add_irq_work(MENELAUS_RTCALM_IRQ,
-				menelaus_rtc_alarm_work) < 0) {
-			dev_err(&m->client->dev, "can't handle RTC alarm\n");
-			return;
-		}
-		device_init_wakeup(&m->client->dev, 1);
-	}
-
-	/* be sure RTC is enabled; allow 1/sec irqs; leave 12hr mode alone */
-	m->rtc_control = menelaus_read_reg(MENELAUS_RTC_CTRL);
-	if (!(m->rtc_control & RTC_CTRL_RTC_EN)
-			|| (m->rtc_control & RTC_CTRL_AL_EN)
-			|| (m->rtc_control & RTC_CTRL_EVERY_MASK)) {
-		if (!(m->rtc_control & RTC_CTRL_RTC_EN)) {
-			dev_warn(&m->client->dev, "rtc clock needs setting\n");
-			m->rtc_control |= RTC_CTRL_RTC_EN;
-		}
-		m->rtc_control &= ~RTC_CTRL_EVERY_MASK;
-		m->rtc_control &= ~RTC_CTRL_AL_EN;
-		menelaus_write_reg(MENELAUS_RTC_CTRL, m->rtc_control);
-	}
-
-	m->rtc = rtc_device_register(DRIVER_NAME,
-			&m->client->dev,
-			&menelaus_rtc_ops, THIS_MODULE);
-	if (IS_ERR(m->rtc)) {
-		if (alarm) {
-			menelaus_remove_irq_work(MENELAUS_RTCALM_IRQ);
-			device_init_wakeup(&m->client->dev, 0);
-		}
-		dev_err(&m->client->dev, "can't register RTC: %d\n",
-				(int) PTR_ERR(m->rtc));
-		the_menelaus->rtc = NULL;
-	}
-}
-
-#else
-
-static inline void menelaus_rtc_init(struct menelaus_chip *m)
-{
-	/* nothing */
-}
-
-#endif
-
-/*-----------------------------------------------------------------------*/
-
-static struct i2c_driver menelaus_i2c_driver;
-
-static int menelaus_probe(struct i2c_client *client,
-			  const struct i2c_device_id *id)
-{
-	struct menelaus_chip	*menelaus;
-	int			rev = 0, val;
-	int			err = 0;
-	struct menelaus_platform_data *menelaus_pdata =
-					client->dev.platform_data;
-
-	if (the_menelaus) {
-		dev_dbg(&client->dev, "only one %s for now\n",
-				DRIVER_NAME);
-		return -ENODEV;
-	}
-
-	menelaus = kzalloc(sizeof *menelaus, GFP_KERNEL);
-	if (!menelaus)
-		return -ENOMEM;
-
-	i2c_set_clientdata(client, menelaus);
-
-	the_menelaus = menelaus;
-	menelaus->client = client;
-
-	/* If a true probe check the device */
-	rev = menelaus_read_reg(MENELAUS_REV);
-	if (rev < 0) {
-		pr_err(DRIVER_NAME ": device not found");
-		err = -ENODEV;
-		goto fail1;
-	}
-
-	/* Ack and disable all Menelaus interrupts */
-	menelaus_write_reg(MENELAUS_INT_ACK1, 0xff);
-	menelaus_write_reg(MENELAUS_INT_ACK2, 0xff);
-	menelaus_write_reg(MENELAUS_INT_MASK1, 0xff);
-	menelaus_write_reg(MENELAUS_INT_MASK2, 0xff);
-	menelaus->mask1 = 0xff;
-	menelaus->mask2 = 0xff;
-
-	/* Set output buffer strengths */
-	menelaus_write_reg(MENELAUS_MCT_CTRL1, 0x73);
-
-	if (client->irq > 0) {
-		err = request_irq(client->irq, menelaus_irq, IRQF_DISABLED,
-				  DRIVER_NAME, menelaus);
-		if (err) {
-			dev_dbg(&client->dev,  "can't get IRQ %d, err %d\n",
-					client->irq, err);
-			goto fail1;
-		}
-	}
-
-	mutex_init(&menelaus->lock);
-	INIT_WORK(&menelaus->work, menelaus_work);
-
-	pr_info("Menelaus rev %d.%d\n", rev >> 4, rev & 0x0f);
-
-	val = menelaus_read_reg(MENELAUS_VCORE_CTRL1);
-	if (val < 0)
-		goto fail2;
-	if (val & (1 << 7))
-		menelaus->vcore_hw_mode = 1;
-	else
-		menelaus->vcore_hw_mode = 0;
-
-	if (menelaus_pdata != NULL && menelaus_pdata->late_init != NULL) {
-		err = menelaus_pdata->late_init(&client->dev);
-		if (err < 0)
-			goto fail2;
-	}
-
-	menelaus_rtc_init(menelaus);
-
-	return 0;
-fail2:
-	free_irq(client->irq, menelaus);
-	flush_scheduled_work();
-fail1:
-	kfree(menelaus);
-	return err;
-}
-
-static int __exit menelaus_remove(struct i2c_client *client)
-{
-	struct menelaus_chip	*menelaus = i2c_get_clientdata(client);
-
-	free_irq(client->irq, menelaus);
-	kfree(menelaus);
-	i2c_set_clientdata(client, NULL);
-	the_menelaus = NULL;
-	return 0;
-}
-
-static const struct i2c_device_id menelaus_id[] = {
-	{ "menelaus", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, menelaus_id);
-
-static struct i2c_driver menelaus_i2c_driver = {
-	.driver = {
-		.name		= DRIVER_NAME,
-	},
-	.probe		= menelaus_probe,
-	.remove		= __exit_p(menelaus_remove),
-	.id_table	= menelaus_id,
-};
-
-static int __init menelaus_init(void)
-{
-	int res;
-
-	res = i2c_add_driver(&menelaus_i2c_driver);
-	if (res < 0) {
-		pr_err(DRIVER_NAME ": driver registration failed\n");
-		return res;
-	}
-
-	return 0;
-}
-
-static void __exit menelaus_exit(void)
-{
-	i2c_del_driver(&menelaus_i2c_driver);
-
-	/* FIXME: Shutdown menelaus parts that can be shut down */
-}
-
-MODULE_AUTHOR("Texas Instruments, Inc. (and others)");
-MODULE_DESCRIPTION("I2C interface for Menelaus.");
-MODULE_LICENSE("GPL");
-
-module_init(menelaus_init);
-module_exit(menelaus_exit);