1 files changed, 884 insertions, 192 deletions

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 1f08704f7ae..cf2e6a198c6 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -11,6 +11,7 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/irq.h>
+#include <linux/irqdomain.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
@@ -18,7 +19,11 @@
 #include <linux/mfd/core.h>
 #include <linux/mfd/abx500.h>
 #include <linux/mfd/abx500/ab8500.h>
+#include <linux/mfd/abx500/ab8500-bm.h>
+#include <linux/mfd/dbx500-prcmu.h>
 #include <linux/regulator/ab8500.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 /*
  * Interrupt register offsets
@@ -90,12 +95,35 @@
 #define AB8500_IT_MASK22_REG		0x55
 #define AB8500_IT_MASK23_REG		0x56
 #define AB8500_IT_MASK24_REG		0x57
+#define AB8500_IT_MASK25_REG		0x58
+
+/*
+ * latch hierarchy registers
+ */
+#define AB8500_IT_LATCHHIER1_REG	0x60
+#define AB8500_IT_LATCHHIER2_REG	0x61
+#define AB8500_IT_LATCHHIER3_REG	0x62
+#define AB8540_IT_LATCHHIER4_REG	0x63
+
+#define AB8500_IT_LATCHHIER_NUM		3
+#define AB8540_IT_LATCHHIER_NUM		4
 
 #define AB8500_REV_REG			0x80
 #define AB8500_IC_NAME_REG		0x82
 #define AB8500_SWITCH_OFF_STATUS	0x00
 
 #define AB8500_TURN_ON_STATUS		0x00
+#define AB8505_TURN_ON_STATUS_2	0x04
+
+#define AB8500_CH_USBCH_STAT1_REG	0x02
+#define VBUS_DET_DBNC100		0x02
+#define VBUS_DET_DBNC1			0x01
+
+static DEFINE_SPINLOCK(on_stat_lock);
+static u8 turn_on_stat_mask = 0xFF;
+static u8 turn_on_stat_set;
+static bool no_bm; /* No battery management */
+module_param(no_bm, bool, S_IRUGO);
 
 #define AB9540_MODEM_CTRL2_REG			0x23
 #define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT	BIT(2)
@@ -113,9 +141,15 @@ static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
 	0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
 };
 
-/* AB9540 support */
+/* AB9540 / AB8505 support */
 static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = {
-	0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24,
+	0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23
+};
+
+/* AB8540 support */
+static const int ab8540_irq_regoffset[AB8540_NUM_IRQ_REGS] = {
+	0, 1, 2, 3, 4, -1, -1, -1, -1, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23,
+	25, 26, 27, 28, 29, 30, 31,
 };
 
 static const char ab8500_version_str[][7] = {
@@ -125,6 +159,41 @@ static const char ab8500_version_str[][7] = {
 	[AB8500_VERSION_AB8540] = "AB8540",
 };
 
+static int ab8500_prcmu_write(struct ab8500 *ab8500, u16 addr, u8 data)
+{
+	int ret;
+
+	ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
+	if (ret < 0)
+		dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
+	return ret;
+}
+
+static int ab8500_prcmu_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask,
+	u8 data)
+{
+	int ret;
+
+	ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data,
+		&mask, 1);
+	if (ret < 0)
+		dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
+	return ret;
+}
+
+static int ab8500_prcmu_read(struct ab8500 *ab8500, u16 addr)
+{
+	int ret;
+	u8 data;
+
+	ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
+	if (ret < 0) {
+		dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
+		return ret;
+	}
+	return (int)data;
+}
+
 static int ab8500_get_chip_id(struct device *dev)
 {
 	struct ab8500 *ab8500;
@@ -161,9 +230,13 @@ static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
 static int ab8500_set_register(struct device *dev, u8 bank,
 	u8 reg, u8 value)
 {
+	int ret;
 	struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
 
-	return set_register_interruptible(ab8500, bank, reg, value);
+	atomic_inc(&ab8500->transfer_ongoing);
+	ret = set_register_interruptible(ab8500, bank, reg, value);
+	atomic_dec(&ab8500->transfer_ongoing);
+	return ret;
 }
 
 static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
@@ -192,9 +265,13 @@ static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
 static int ab8500_get_register(struct device *dev, u8 bank,
 	u8 reg, u8 *value)
 {
+	int ret;
 	struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
 
-	return get_register_interruptible(ab8500, bank, reg, value);
+	atomic_inc(&ab8500->transfer_ongoing);
+	ret = get_register_interruptible(ab8500, bank, reg, value);
+	atomic_dec(&ab8500->transfer_ongoing);
+	return ret;
 }
 
 static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
@@ -241,11 +318,14 @@ out:
 static int ab8500_mask_and_set_register(struct device *dev,
 	u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
 {
+	int ret;
 	struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
 
-	return mask_and_set_register_interruptible(ab8500, bank, reg,
-		bitmask, bitvalues);
-
+	atomic_inc(&ab8500->transfer_ongoing);
+	ret= mask_and_set_register_interruptible(ab8500, bank, reg,
+						 bitmask, bitvalues);
+	atomic_dec(&ab8500->transfer_ongoing);
+	return ret;
 }
 
 static struct abx500_ops ab8500_ops = {
@@ -257,6 +337,7 @@ static struct abx500_ops ab8500_ops = {
 	.mask_and_set_register = ab8500_mask_and_set_register,
 	.event_registers_startup_state_get = NULL,
 	.startup_irq_enabled = NULL,
+	.dump_all_banks = ab8500_dump_all_banks,
 };
 
 static void ab8500_irq_lock(struct irq_data *data)
@@ -264,6 +345,7 @@ static void ab8500_irq_lock(struct irq_data *data)
 	struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
 
 	mutex_lock(&ab8500->irq_lock);
+	atomic_inc(&ab8500->transfer_ongoing);
 }
 
 static void ab8500_irq_sync_unlock(struct irq_data *data)
@@ -287,33 +369,68 @@ static void ab8500_irq_sync_unlock(struct irq_data *data)
 			is_ab8500_1p1_or_earlier(ab8500))
 			continue;
 
+		if (ab8500->irq_reg_offset[i] < 0)
+			continue;
+
 		ab8500->oldmask[i] = new;
 
 		reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i];
 		set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
 	}
-
+	atomic_dec(&ab8500->transfer_ongoing);
 	mutex_unlock(&ab8500->irq_lock);
 }
 
 static void ab8500_irq_mask(struct irq_data *data)
 {
 	struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
-	int offset = data->irq - ab8500->irq_base;
+	int offset = data->hwirq;
 	int index = offset / 8;
 	int mask = 1 << (offset % 8);
 
 	ab8500->mask[index] |= mask;
+
+	/* The AB8500 GPIOs have two interrupts each (rising & falling). */
+	if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R)
+		ab8500->mask[index + 2] |= mask;
+	if (offset >= AB9540_INT_GPIO50R && offset <= AB9540_INT_GPIO54R)
+		ab8500->mask[index + 1] |= mask;
+	if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R)
+		/* Here the falling IRQ is one bit lower */
+		ab8500->mask[index] |= (mask << 1);
 }
 
 static void ab8500_irq_unmask(struct irq_data *data)
 {
 	struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
-	int offset = data->irq - ab8500->irq_base;
+	unsigned int type = irqd_get_trigger_type(data);
+	int offset = data->hwirq;
 	int index = offset / 8;
 	int mask = 1 << (offset % 8);
 
-	ab8500->mask[index] &= ~mask;
+	if (type & IRQ_TYPE_EDGE_RISING)
+		ab8500->mask[index] &= ~mask;
+
+	/* The AB8500 GPIOs have two interrupts each (rising & falling). */
+	if (type & IRQ_TYPE_EDGE_FALLING) {
+		if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R)
+			ab8500->mask[index + 2] &= ~mask;
+		else if (offset >= AB9540_INT_GPIO50R && offset <= AB9540_INT_GPIO54R)
+			ab8500->mask[index + 1] &= ~mask;
+		else if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R)
+			/* Here the falling IRQ is one bit lower */
+			ab8500->mask[index] &= ~(mask << 1);
+		else
+			ab8500->mask[index] &= ~mask;
+	} else {
+		/* Satisfies the case where type is not set. */
+		ab8500->mask[index] &= ~mask;
+	}
+}
+
+static int ab8500_irq_set_type(struct irq_data *data, unsigned int type)
+{
+	return 0;
 }
 
 static struct irq_chip ab8500_irq_chip = {
@@ -323,133 +440,193 @@ static struct irq_chip ab8500_irq_chip = {
 	.irq_mask		= ab8500_irq_mask,
 	.irq_disable		= ab8500_irq_mask,
 	.irq_unmask		= ab8500_irq_unmask,
+	.irq_set_type		= ab8500_irq_set_type,
 };
 
-static irqreturn_t ab8500_irq(int irq, void *dev)
+static void update_latch_offset(u8 *offset, int i)
 {
-	struct ab8500 *ab8500 = dev;
-	int i;
+	/* Fix inconsistent ITFromLatch25 bit mapping... */
+	if (unlikely(*offset == 17))
+			*offset = 24;
+	/* Fix inconsistent ab8540 bit mapping... */
+	if (unlikely(*offset == 16))
+			*offset = 25;
+	if ((i==3) && (*offset >= 24))
+			*offset += 2;
+}
 
-	dev_vdbg(ab8500->dev, "interrupt\n");
+static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
+					int latch_offset, u8 latch_val)
+{
+	int int_bit, line, i;
 
-	for (i = 0; i < ab8500->mask_size; i++) {
-		int regoffset = ab8500->irq_reg_offset[i];
-		int status;
-		u8 value;
+	for (i = 0; i < ab8500->mask_size; i++)
+		if (ab8500->irq_reg_offset[i] == latch_offset)
+			break;
+
+	if (i >= ab8500->mask_size) {
+		dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
+				latch_offset);
+		return -ENXIO;
+	}
+
+	/* ignore masked out interrupts */
+	latch_val &= ~ab8500->mask[i];
+
+	while (latch_val) {
+		int_bit = __ffs(latch_val);
+		line = (i << 3) + int_bit;
+		latch_val &= ~(1 << int_bit);
 
 		/*
-		 * Interrupt register 12 doesn't exist prior to AB8500 version
-		 * 2.0
+		 * This handles the falling edge hwirqs from the GPIO
+		 * lines. Route them back to the line registered for the
+		 * rising IRQ, as this is merely a flag for the same IRQ
+		 * in linux terms.
 		 */
-		if (regoffset == 11 && is_ab8500_1p1_or_earlier(ab8500))
-			continue;
+		if (line >= AB8500_INT_GPIO6F && line <= AB8500_INT_GPIO41F)
+			line -= 16;
+		if (line >= AB9540_INT_GPIO50F && line <= AB9540_INT_GPIO54F)
+			line -= 8;
+		if (line == AB8540_INT_GPIO43F || line == AB8540_INT_GPIO44F)
+			line += 1;
+
+		handle_nested_irq(irq_create_mapping(ab8500->domain, line));
+	}
+
+	return 0;
+}
+
+static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500,
+					int hier_offset, u8 hier_val)
+{
+	int latch_bit, status;
+	u8 latch_offset, latch_val;
+
+	do {
+		latch_bit = __ffs(hier_val);
+		latch_offset = (hier_offset << 3) + latch_bit;
+
+		update_latch_offset(&latch_offset, hier_offset);
+
+		status = get_register_interruptible(ab8500,
+				AB8500_INTERRUPT,
+				AB8500_IT_LATCH1_REG + latch_offset,
+				&latch_val);
+		if (status < 0 || latch_val == 0)
+			goto discard;
+
+		status = ab8500_handle_hierarchical_line(ab8500,
+				latch_offset, latch_val);
+		if (status < 0)
+			return status;
+discard:
+		hier_val &= ~(1 << latch_bit);
+	} while (hier_val);
+
+	return 0;
+}
+
+static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev)
+{
+	struct ab8500 *ab8500 = dev;
+	u8 i;
+
+	dev_vdbg(ab8500->dev, "interrupt\n");
+
+	/*  Hierarchical interrupt version */
+	for (i = 0; i < (ab8500->it_latchhier_num); i++) {
+		int status;
+		u8 hier_val;
 
 		status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
-			AB8500_IT_LATCH1_REG + regoffset, &value);
-		if (status < 0 || value == 0)
+			AB8500_IT_LATCHHIER1_REG + i, &hier_val);
+		if (status < 0 || hier_val == 0)
 			continue;
 
-		do {
-			int bit = __ffs(value);
-			int line = i * 8 + bit;
-
-			handle_nested_irq(ab8500->irq_base + line);
-			value &= ~(1 << bit);
-		} while (value);
+		status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val);
+		if (status < 0)
+			break;
 	}
-
 	return IRQ_HANDLED;
 }
 
-static int ab8500_irq_init(struct ab8500 *ab8500)
+static int ab8500_irq_map(struct irq_domain *d, unsigned int virq,
+				irq_hw_number_t hwirq)
 {
-	int base = ab8500->irq_base;
-	int irq;
-	int num_irqs;
+	struct ab8500 *ab8500 = d->host_data;
 
-	if (is_ab9540(ab8500))
-		num_irqs = AB9540_NR_IRQS;
-	else if (is_ab8505(ab8500))
-		num_irqs = AB8505_NR_IRQS;
-	else
-		num_irqs = AB8500_NR_IRQS;
+	if (!ab8500)
+		return -EINVAL;
 
-	for (irq = base; irq < base + num_irqs; irq++) {
-		irq_set_chip_data(irq, ab8500);
-		irq_set_chip_and_handler(irq, &ab8500_irq_chip,
-					 handle_simple_irq);
-		irq_set_nested_thread(irq, 1);
+	irq_set_chip_data(virq, ab8500);
+	irq_set_chip_and_handler(virq, &ab8500_irq_chip,
+				handle_simple_irq);
+	irq_set_nested_thread(virq, 1);
 #ifdef CONFIG_ARM
-		set_irq_flags(irq, IRQF_VALID);
+	set_irq_flags(virq, IRQF_VALID);
 #else
-		irq_set_noprobe(irq);
+	irq_set_noprobe(virq);
 #endif
-	}
 
 	return 0;
 }
 
-static void ab8500_irq_remove(struct ab8500 *ab8500)
+static struct irq_domain_ops ab8500_irq_ops = {
+        .map    = ab8500_irq_map,
+        .xlate  = irq_domain_xlate_twocell,
+};
+
+static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
 {
-	int base = ab8500->irq_base;
-	int irq;
 	int num_irqs;
 
-	if (is_ab9540(ab8500))
+	if (is_ab8540(ab8500))
+		num_irqs = AB8540_NR_IRQS;
+	else if (is_ab9540(ab8500))
 		num_irqs = AB9540_NR_IRQS;
 	else if (is_ab8505(ab8500))
 		num_irqs = AB8505_NR_IRQS;
 	else
 		num_irqs = AB8500_NR_IRQS;
 
-	for (irq = base; irq < base + num_irqs; irq++) {
-#ifdef CONFIG_ARM
-		set_irq_flags(irq, 0);
-#endif
-		irq_set_chip_and_handler(irq, NULL, NULL);
-		irq_set_chip_data(irq, NULL);
+	/* If ->irq_base is zero this will give a linear mapping */
+	ab8500->domain = irq_domain_add_simple(ab8500->dev->of_node,
+			num_irqs, 0,
+			&ab8500_irq_ops, ab8500);
+
+	if (!ab8500->domain) {
+		dev_err(ab8500->dev, "Failed to create irqdomain\n");
+		return -ENOSYS;
 	}
+
+	return 0;
 }
 
-/* AB8500 GPIO Resources */
-static struct resource __devinitdata ab8500_gpio_resources[] = {
-	{
-		.name	= "GPIO_INT6",
-		.start	= AB8500_INT_GPIO6R,
-		.end	= AB8500_INT_GPIO41F,
-		.flags	= IORESOURCE_IRQ,
-	}
-};
+int ab8500_suspend(struct ab8500 *ab8500)
+{
+	if (atomic_read(&ab8500->transfer_ongoing))
+		return -EINVAL;
+	else
+		return 0;
+}
 
-/* AB9540 GPIO Resources */
-static struct resource __devinitdata ab9540_gpio_resources[] = {
+static struct resource ab8500_gpadc_resources[] = {
 	{
-		.name	= "GPIO_INT6",
-		.start	= AB8500_INT_GPIO6R,
-		.end	= AB8500_INT_GPIO41F,
+		.name	= "HW_CONV_END",
+		.start	= AB8500_INT_GP_HW_ADC_CONV_END,
+		.end	= AB8500_INT_GP_HW_ADC_CONV_END,
 		.flags	= IORESOURCE_IRQ,
 	},
 	{
-		.name	= "GPIO_INT14",
-		.start	= AB9540_INT_GPIO50R,
-		.end	= AB9540_INT_GPIO54R,
+		.name	= "SW_CONV_END",
+		.start	= AB8500_INT_GP_SW_ADC_CONV_END,
+		.end	= AB8500_INT_GP_SW_ADC_CONV_END,
 		.flags	= IORESOURCE_IRQ,
 	},
-	{
-		.name	= "GPIO_INT15",
-		.start	= AB9540_INT_GPIO50F,
-		.end	= AB9540_INT_GPIO54F,
-		.flags	= IORESOURCE_IRQ,
-	}
 };
 
-static struct resource __devinitdata ab8500_gpadc_resources[] = {
-	{
-		.name	= "HW_CONV_END",
-		.start	= AB8500_INT_GP_HW_ADC_CONV_END,
-		.end	= AB8500_INT_GP_HW_ADC_CONV_END,
-		.flags	= IORESOURCE_IRQ,
-	},
+static struct resource ab8505_gpadc_resources[] = {
 	{
 		.name	= "SW_CONV_END",
 		.start	= AB8500_INT_GP_SW_ADC_CONV_END,
@@ -458,7 +635,7 @@ static struct resource __devinitdata ab8500_gpadc_resources[] = {
 	},
 };
 
-static struct resource __devinitdata ab8500_rtc_resources[] = {
+static struct resource ab8500_rtc_resources[] = {
 	{
 		.name	= "60S",
 		.start	= AB8500_INT_RTC_60S,
@@ -473,7 +650,22 @@ static struct resource __devinitdata ab8500_rtc_resources[] = {
 	},
 };
 
-static struct resource __devinitdata ab8500_poweronkey_db_resources[] = {
+static struct resource ab8540_rtc_resources[] = {
+	{
+		.name	= "1S",
+		.start	= AB8540_INT_RTC_1S,
+		.end	= AB8540_INT_RTC_1S,
+		.flags	= IORESOURCE_IRQ,
+	},
+	{
+		.name	= "ALARM",
+		.start	= AB8500_INT_RTC_ALARM,
+		.end	= AB8500_INT_RTC_ALARM,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct resource ab8500_poweronkey_db_resources[] = {
 	{
 		.name	= "ONKEY_DBF",
 		.start	= AB8500_INT_PON_KEY1DB_F,
@@ -488,7 +680,7 @@ static struct resource __devinitdata ab8500_poweronkey_db_resources[] = {
 	},
 };
 
-static struct resource __devinitdata ab8500_av_acc_detect_resources[] = {
+static struct resource ab8500_av_acc_detect_resources[] = {
 	{
 	       .name = "ACC_DETECT_1DB_F",
 	       .start = AB8500_INT_ACC_DETECT_1DB_F,
@@ -527,7 +719,7 @@ static struct resource __devinitdata ab8500_av_acc_detect_resources[] = {
 	},
 };
 
-static struct resource __devinitdata ab8500_charger_resources[] = {
+static struct resource ab8500_charger_resources[] = {
 	{
 		.name = "MAIN_CH_UNPLUG_DET",
 		.start = AB8500_INT_MAIN_CH_UNPLUG_DET,
@@ -606,9 +798,15 @@ static struct resource __devinitdata ab8500_charger_resources[] = {
 		.end = AB8500_INT_CH_WD_EXP,
 		.flags = IORESOURCE_IRQ,
 	},
+	{
+		.name = "VBUS_CH_DROP_END",
+		.start = AB8500_INT_VBUS_CH_DROP_END,
+		.end = AB8500_INT_VBUS_CH_DROP_END,
+		.flags = IORESOURCE_IRQ,
+	},
 };
 
-static struct resource __devinitdata ab8500_btemp_resources[] = {
+static struct resource ab8500_btemp_resources[] = {
 	{
 		.name = "BAT_CTRL_INDB",
 		.start = AB8500_INT_BAT_CTRL_INDB,
@@ -641,7 +839,7 @@ static struct resource __devinitdata ab8500_btemp_resources[] = {
 	},
 };
 
-static struct resource __devinitdata ab8500_fg_resources[] = {
+static struct resource ab8500_fg_resources[] = {
 	{
 		.name = "NCONV_ACCU",
 		.start = AB8500_INT_CCN_CONV_ACC,
@@ -680,10 +878,19 @@ static struct resource __devinitdata ab8500_fg_resources[] = {
 	},
 };
 
-static struct resource __devinitdata ab8500_chargalg_resources[] = {};
+static struct resource ab8500_chargalg_resources[] = {};
 
 #ifdef CONFIG_DEBUG_FS
-static struct resource __devinitdata ab8500_debug_resources[] = {
+static struct resource ab8500_debug_resources[] = {
+	{
+		.name	= "IRQ_AB8500",
+		/*
+		 * Number will be filled in. NOTE: this is deliberately
+		 * not flagged as an IRQ in ordet to avoid remapping using
+		 * the irqdomain in the MFD core, so that this IRQ passes
+		 * unremapped to the debug code.
+		 */
+	},
 	{
 		.name	= "IRQ_FIRST",
 		.start	= AB8500_INT_MAIN_EXT_CH_NOT_OK,
@@ -699,7 +906,7 @@ static struct resource __devinitdata ab8500_debug_resources[] = {
 };
 #endif
 
-static struct resource __devinitdata ab8500_usb_resources[] = {
+static struct resource ab8500_usb_resources[] = {
 	{
 		.name = "ID_WAKEUP_R",
 		.start = AB8500_INT_ID_WAKEUP_R,
@@ -744,120 +951,410 @@ static struct resource __devinitdata ab8500_usb_resources[] = {
 	},
 };
 
-static struct resource __devinitdata ab8500_temp_resources[] = {
+static struct resource ab8505_iddet_resources[] = {
 	{
-		.name  = "AB8500_TEMP_WARM",
-		.start = AB8500_INT_TEMP_WARM,
-		.end   = AB8500_INT_TEMP_WARM,
+		.name  = "KeyDeglitch",
+		.start = AB8505_INT_KEYDEGLITCH,
+		.end   = AB8505_INT_KEYDEGLITCH,
 		.flags = IORESOURCE_IRQ,
 	},
-};
-
-static struct mfd_cell __devinitdata abx500_common_devs[] = {
-#ifdef CONFIG_DEBUG_FS
 	{
-		.name = "ab8500-debug",
-		.num_resources = ARRAY_SIZE(ab8500_debug_resources),
-		.resources = ab8500_debug_resources,
+		.name  = "KP",
+		.start = AB8505_INT_KP,
+		.end   = AB8505_INT_KP,
+		.flags = IORESOURCE_IRQ,
 	},
-#endif
 	{
-		.name = "ab8500-sysctrl",
+		.name  = "IKP",
+		.start = AB8505_INT_IKP,
+		.end   = AB8505_INT_IKP,
+		.flags = IORESOURCE_IRQ,
 	},
 	{
-		.name = "ab8500-regulator",
+		.name  = "IKR",
+		.start = AB8505_INT_IKR,
+		.end   = AB8505_INT_IKR,
+		.flags = IORESOURCE_IRQ,
 	},
 	{
-		.name = "ab8500-gpadc",
-		.num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
-		.resources = ab8500_gpadc_resources,
+		.name  = "KeyStuck",
+		.start = AB8505_INT_KEYSTUCK,
+		.end   = AB8505_INT_KEYSTUCK,
+		.flags = IORESOURCE_IRQ,
 	},
 	{
-		.name = "ab8500-rtc",
-		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
-		.resources = ab8500_rtc_resources,
+		.name = "VBUS_DET_R",
+		.start = AB8500_INT_VBUS_DET_R,
+		.end = AB8500_INT_VBUS_DET_R,
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.name = "VBUS_DET_F",
+		.start = AB8500_INT_VBUS_DET_F,
+		.end = AB8500_INT_VBUS_DET_F,
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.name = "ID_DET_PLUGR",
+		.start = AB8500_INT_ID_DET_PLUGR,
+		.end = AB8500_INT_ID_DET_PLUGR,
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.name = "ID_DET_PLUGF",
+		.start = AB8500_INT_ID_DET_PLUGF,
+		.end = AB8500_INT_ID_DET_PLUGF,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct resource ab8500_temp_resources[] = {
+	{
+		.name  = "ABX500_TEMP_WARM",
+		.start = AB8500_INT_TEMP_WARM,
+		.end   = AB8500_INT_TEMP_WARM,
+		.flags = IORESOURCE_IRQ,
 	},
+};
+
+static const struct mfd_cell ab8500_bm_devs[] = {
 	{
 		.name = "ab8500-charger",
+		.of_compatible = "stericsson,ab8500-charger",
 		.num_resources = ARRAY_SIZE(ab8500_charger_resources),
 		.resources = ab8500_charger_resources,
+		.platform_data = &ab8500_bm_data,
+		.pdata_size = sizeof(ab8500_bm_data),
 	},
 	{
 		.name = "ab8500-btemp",
+		.of_compatible = "stericsson,ab8500-btemp",
 		.num_resources = ARRAY_SIZE(ab8500_btemp_resources),
 		.resources = ab8500_btemp_resources,
+		.platform_data = &ab8500_bm_data,
+		.pdata_size = sizeof(ab8500_bm_data),
 	},
 	{
 		.name = "ab8500-fg",
+		.of_compatible = "stericsson,ab8500-fg",
 		.num_resources = ARRAY_SIZE(ab8500_fg_resources),
 		.resources = ab8500_fg_resources,
+		.platform_data = &ab8500_bm_data,
+		.pdata_size = sizeof(ab8500_bm_data),
 	},
 	{
 		.name = "ab8500-chargalg",
+		.of_compatible = "stericsson,ab8500-chargalg",
 		.num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
 		.resources = ab8500_chargalg_resources,
+		.platform_data = &ab8500_bm_data,
+		.pdata_size = sizeof(ab8500_bm_data),
+	},
+};
+
+static const struct mfd_cell ab8500_devs[] = {
+#ifdef CONFIG_DEBUG_FS
+	{
+		.name = "ab8500-debug",
+		.of_compatible = "stericsson,ab8500-debug",
+		.num_resources = ARRAY_SIZE(ab8500_debug_resources),
+		.resources = ab8500_debug_resources,
+	},
+#endif
+	{
+		.name = "ab8500-sysctrl",
+		.of_compatible = "stericsson,ab8500-sysctrl",
+	},
+	{
+		.name = "ab8500-ext-regulator",
+		.of_compatible = "stericsson,ab8500-ext-regulator",
+	},
+	{
+		.name = "ab8500-regulator",
+		.of_compatible = "stericsson,ab8500-regulator",
+	},
+	{
+		.name = "abx500-clk",
+		.of_compatible = "stericsson,abx500-clk",
+	},
+	{
+		.name = "ab8500-gpadc",
+		.of_compatible = "stericsson,ab8500-gpadc",
+		.num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
+		.resources = ab8500_gpadc_resources,
+	},
+	{
+		.name = "ab8500-rtc",
+		.of_compatible = "stericsson,ab8500-rtc",
+		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
+		.resources = ab8500_rtc_resources,
 	},
 	{
 		.name = "ab8500-acc-det",
+		.of_compatible = "stericsson,ab8500-acc-det",
 		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
 		.resources = ab8500_av_acc_detect_resources,
 	},
 	{
-		.name = "ab8500-codec",
-	},
 
-	{
 		.name = "ab8500-poweron-key",
+		.of_compatible = "stericsson,ab8500-poweron-key",
 		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
 		.resources = ab8500_poweronkey_db_resources,
 	},
 	{
 		.name = "ab8500-pwm",
+		.of_compatible = "stericsson,ab8500-pwm",
 		.id = 1,
 	},
 	{
 		.name = "ab8500-pwm",
+		.of_compatible = "stericsson,ab8500-pwm",
 		.id = 2,
 	},
 	{
 		.name = "ab8500-pwm",
+		.of_compatible = "stericsson,ab8500-pwm",
 		.id = 3,
 	},
-	{ .name = "ab8500-leds", },
 	{
 		.name = "ab8500-denc",
+		.of_compatible = "stericsson,ab8500-denc",
+	},
+	{
+		.name = "pinctrl-ab8500",
+		.of_compatible = "stericsson,ab8500-gpio",
+	},
+	{
+		.name = "abx500-temp",
+		.of_compatible = "stericsson,abx500-temp",
+		.num_resources = ARRAY_SIZE(ab8500_temp_resources),
+		.resources = ab8500_temp_resources,
+	},
+	{
+		.name = "ab8500-usb",
+		.of_compatible = "stericsson,ab8500-usb",
+		.num_resources = ARRAY_SIZE(ab8500_usb_resources),
+		.resources = ab8500_usb_resources,
+	},
+	{
+		.name = "ab8500-codec",
+		.of_compatible = "stericsson,ab8500-codec",
+	},
+};
+
+static const struct mfd_cell ab9540_devs[] = {
+#ifdef CONFIG_DEBUG_FS
+	{
+		.name = "ab8500-debug",
+		.num_resources = ARRAY_SIZE(ab8500_debug_resources),
+		.resources = ab8500_debug_resources,
+	},
+#endif
+	{
+		.name = "ab8500-sysctrl",
+	},
+	{
+		.name = "ab8500-ext-regulator",
+	},
+	{
+		.name = "ab8500-regulator",
+	},
+	{
+		.name = "abx500-clk",
+		.of_compatible = "stericsson,abx500-clk",
+	},
+	{
+		.name = "ab8500-gpadc",
+		.of_compatible = "stericsson,ab8500-gpadc",
+		.num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
+		.resources = ab8500_gpadc_resources,
 	},
 	{
-		.name = "ab8500-temp",
+		.name = "ab8500-rtc",
+		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
+		.resources = ab8500_rtc_resources,
+	},
+	{
+		.name = "ab8500-acc-det",
+		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
+		.resources = ab8500_av_acc_detect_resources,
+	},
+	{
+		.name = "ab8500-poweron-key",
+		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
+		.resources = ab8500_poweronkey_db_resources,
+	},
+	{
+		.name = "ab8500-pwm",
+		.id = 1,
+	},
+	{
+		.name = "abx500-temp",
 		.num_resources = ARRAY_SIZE(ab8500_temp_resources),
 		.resources = ab8500_temp_resources,
 	},
+	{
+		.name = "pinctrl-ab9540",
+		.of_compatible = "stericsson,ab9540-gpio",
+	},
+	{
+		.name = "ab9540-usb",
+		.num_resources = ARRAY_SIZE(ab8500_usb_resources),
+		.resources = ab8500_usb_resources,
+	},
+	{
+		.name = "ab9540-codec",
+	},
+	{
+		.name = "ab-iddet",
+		.num_resources = ARRAY_SIZE(ab8505_iddet_resources),
+		.resources = ab8505_iddet_resources,
+	},
 };
 
-static struct mfd_cell __devinitdata ab8500_devs[] = {
+/* Device list for ab8505  */
+static const struct mfd_cell ab8505_devs[] = {
+#ifdef CONFIG_DEBUG_FS
+	{
+		.name = "ab8500-debug",
+		.num_resources = ARRAY_SIZE(ab8500_debug_resources),
+		.resources = ab8500_debug_resources,
+	},
+#endif
 	{
-		.name = "ab8500-gpio",
-		.num_resources = ARRAY_SIZE(ab8500_gpio_resources),
-		.resources = ab8500_gpio_resources,
+		.name = "ab8500-sysctrl",
+	},
+	{
+		.name = "ab8500-regulator",
+	},
+	{
+		.name = "abx500-clk",
+		.of_compatible = "stericsson,abx500-clk",
+	},
+	{
+		.name = "ab8500-gpadc",
+		.of_compatible = "stericsson,ab8500-gpadc",
+		.num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
+		.resources = ab8505_gpadc_resources,
+	},
+	{
+		.name = "ab8500-rtc",
+		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
+		.resources = ab8500_rtc_resources,
+	},
+	{
+		.name = "ab8500-acc-det",
+		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
+		.resources = ab8500_av_acc_detect_resources,
+	},
+	{
+		.name = "ab8500-poweron-key",
+		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
+		.resources = ab8500_poweronkey_db_resources,
+	},
+	{
+		.name = "ab8500-pwm",
+		.id = 1,
+	},
+	{
+		.name = "pinctrl-ab8505",
 	},
 	{
 		.name = "ab8500-usb",
 		.num_resources = ARRAY_SIZE(ab8500_usb_resources),
 		.resources = ab8500_usb_resources,
 	},
+	{
+		.name = "ab8500-codec",
+	},
+	{
+		.name = "ab-iddet",
+		.num_resources = ARRAY_SIZE(ab8505_iddet_resources),
+		.resources = ab8505_iddet_resources,
+	},
 };
 
-static struct mfd_cell __devinitdata ab9540_devs[] = {
+static const struct mfd_cell ab8540_devs[] = {
+#ifdef CONFIG_DEBUG_FS
+	{
+		.name = "ab8500-debug",
+		.num_resources = ARRAY_SIZE(ab8500_debug_resources),
+		.resources = ab8500_debug_resources,
+	},
+#endif
 	{
-		.name = "ab8500-gpio",
-		.num_resources = ARRAY_SIZE(ab9540_gpio_resources),
-		.resources = ab9540_gpio_resources,
+		.name = "ab8500-sysctrl",
 	},
 	{
-		.name = "ab9540-usb",
+		.name = "ab8500-ext-regulator",
+	},
+	{
+		.name = "ab8500-regulator",
+	},
+	{
+		.name = "abx500-clk",
+		.of_compatible = "stericsson,abx500-clk",
+	},
+	{
+		.name = "ab8500-gpadc",
+		.of_compatible = "stericsson,ab8500-gpadc",
+		.num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
+		.resources = ab8505_gpadc_resources,
+	},
+	{
+		.name = "ab8500-acc-det",
+		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
+		.resources = ab8500_av_acc_detect_resources,
+	},
+	{
+		.name = "ab8500-poweron-key",
+		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
+		.resources = ab8500_poweronkey_db_resources,
+	},
+	{
+		.name = "ab8500-pwm",
+		.id = 1,
+	},
+	{
+		.name = "abx500-temp",
+		.num_resources = ARRAY_SIZE(ab8500_temp_resources),
+		.resources = ab8500_temp_resources,
+	},
+	{
+		.name = "pinctrl-ab8540",
+	},
+	{
+		.name = "ab8540-usb",
 		.num_resources = ARRAY_SIZE(ab8500_usb_resources),
 		.resources = ab8500_usb_resources,
 	},
+	{
+		.name = "ab8540-codec",
+	},
+	{
+		.name = "ab-iddet",
+		.num_resources = ARRAY_SIZE(ab8505_iddet_resources),
+		.resources = ab8505_iddet_resources,
+	},
+};
+
+static const struct mfd_cell ab8540_cut1_devs[] = {
+	{
+		.name = "ab8500-rtc",
+		.of_compatible = "stericsson,ab8500-rtc",
+		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
+		.resources = ab8500_rtc_resources,
+	},
+};
+
+static const struct mfd_cell ab8540_cut2_devs[] = {
+	{
+		.name = "ab8540-rtc",
+		.of_compatible = "stericsson,ab8540-rtc",
+		.num_resources = ARRAY_SIZE(ab8540_rtc_resources),
+		.resources = ab8540_rtc_resources,
+	},
 };
 
 static ssize_t show_chip_id(struct device *dev,
@@ -866,6 +1363,7 @@ static ssize_t show_chip_id(struct device *dev,
 	struct ab8500 *ab8500;
 
 	ab8500 = dev_get_drvdata(dev);
+
 	return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
 }
 
@@ -895,6 +1393,15 @@ static ssize_t show_switch_off_status(struct device *dev,
 	return sprintf(buf, "%#x\n", value);
 }
 
+/* use mask and set to override the register turn_on_stat value */
+void ab8500_override_turn_on_stat(u8 mask, u8 set)
+{
+	spin_lock(&on_stat_lock);
+	turn_on_stat_mask = mask;
+	turn_on_stat_set = set;
+	spin_unlock(&on_stat_lock);
+}
+
 /*
  * ab8500 has turned on due to (TURN_ON_STATUS):
  * 0x01 PORnVbat
@@ -918,9 +1425,38 @@ static ssize_t show_turn_on_status(struct device *dev,
 		AB8500_TURN_ON_STATUS, &value);
 	if (ret < 0)
 		return ret;
+
+	/*
+	 * In L9540, turn_on_status register is not updated correctly if
+	 * the device is rebooted with AC/USB charger connected. Due to
+	 * this, the device boots android instead of entering into charge
+	 * only mode. Read the AC/USB status register to detect the charger
+	 * presence and update the turn on status manually.
+	 */
+	if (is_ab9540(ab8500)) {
+		spin_lock(&on_stat_lock);
+		value = (value & turn_on_stat_mask) | turn_on_stat_set;
+		spin_unlock(&on_stat_lock);
+	}
+
 	return sprintf(buf, "%#x\n", value);
 }
 
+static ssize_t show_turn_on_status_2(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int ret;
+	u8 value;
+	struct ab8500 *ab8500;
+
+	ab8500 = dev_get_drvdata(dev);
+	ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
+		AB8505_TURN_ON_STATUS_2, &value);
+	if (ret < 0)
+		return ret;
+	return sprintf(buf, "%#x\n", (value & 0x1));
+}
+
 static ssize_t show_ab9540_dbbrstn(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
@@ -977,6 +1513,7 @@ exit:
 static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
 static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
 static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
+static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL);
 static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
 			show_ab9540_dbbrstn, store_ab9540_dbbrstn);
 
@@ -987,6 +1524,11 @@ static struct attribute *ab8500_sysfs_entries[] = {
 	NULL,
 };
 
+static struct attribute *ab8505_sysfs_entries[] = {
+	&dev_attr_turn_on_status_2.attr,
+	NULL,
+};
+
 static struct attribute *ab9540_sysfs_entries[] = {
 	&dev_attr_chip_id.attr,
 	&dev_attr_switch_off_status.attr,
@@ -999,30 +1541,80 @@ static struct attribute_group ab8500_attr_group = {
 	.attrs	= ab8500_sysfs_entries,
 };
 
+static struct attribute_group ab8505_attr_group = {
+	.attrs	= ab8505_sysfs_entries,
+};
+
 static struct attribute_group ab9540_attr_group = {
 	.attrs	= ab9540_sysfs_entries,
 };
 
-int __devinit ab8500_init(struct ab8500 *ab8500, enum ab8500_version version)
+static int ab8500_probe(struct platform_device *pdev)
 {
-	struct ab8500_platform_data *plat = dev_get_platdata(ab8500->dev);
+	static char *switch_off_status[] = {
+		"Swoff bit programming",
+		"Thermal protection activation",
+		"Vbat lower then BattOk falling threshold",
+		"Watchdog expired",
+		"Non presence of 32kHz clock",
+		"Battery level lower than power on reset threshold",
+		"Power on key 1 pressed longer than 10 seconds",
+		"DB8500 thermal shutdown"};
+	static char *turn_on_status[] = {
+		"Battery rising (Vbat)",
+		"Power On Key 1 dbF",
+		"Power On Key 2 dbF",
+		"RTC Alarm",
+		"Main Charger Detect",
+		"Vbus Detect (USB)",
+		"USB ID Detect",
+		"UART Factory Mode Detect"};
+	struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
+	const struct platform_device_id *platid = platform_get_device_id(pdev);
+	enum ab8500_version version = AB8500_VERSION_UNDEFINED;
+	struct device_node *np = pdev->dev.of_node;
+	struct ab8500 *ab8500;
+	struct resource *resource;
 	int ret;
 	int i;
 	u8 value;
 
-	if (plat)
-		ab8500->irq_base = plat->irq_base;
+	ab8500 = devm_kzalloc(&pdev->dev, sizeof *ab8500, GFP_KERNEL);
+	if (!ab8500)
+		return -ENOMEM;
+
+	ab8500->dev = &pdev->dev;
+
+	resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!resource) {
+		dev_err(&pdev->dev, "no IRQ resource\n");
+		return -ENODEV;
+	}
+
+	ab8500->irq = resource->start;
+
+	ab8500->read = ab8500_prcmu_read;
+	ab8500->write = ab8500_prcmu_write;
+	ab8500->write_masked = ab8500_prcmu_write_masked;
 
 	mutex_init(&ab8500->lock);
 	mutex_init(&ab8500->irq_lock);
+	atomic_set(&ab8500->transfer_ongoing, 0);
+
+	platform_set_drvdata(pdev, ab8500);
+
+	if (platid)
+		version = platid->driver_data;
 
 	if (version != AB8500_VERSION_UNDEFINED)
 		ab8500->version = version;
 	else {
 		ret = get_register_interruptible(ab8500, AB8500_MISC,
 			AB8500_IC_NAME_REG, &value);
-		if (ret < 0)
+		if (ret < 0) {
+			dev_err(&pdev->dev, "could not probe HW\n");
 			return ret;
+		}
 
 		ab8500->version = value;
 	}
@@ -1039,22 +1631,28 @@ int __devinit ab8500_init(struct ab8500 *ab8500, enum ab8500_version version)
 			ab8500->chip_id >> 4,
 			ab8500->chip_id & 0x0F);
 
-	/* Configure AB8500 or AB9540 IRQ */
-	if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
+	/* Configure AB8540 */
+	if (is_ab8540(ab8500)) {
+		ab8500->mask_size = AB8540_NUM_IRQ_REGS;
+		ab8500->irq_reg_offset = ab8540_irq_regoffset;
+		ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM;
+	}/* Configure AB8500 or AB9540 IRQ */
+	else if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
 		ab8500->mask_size = AB9540_NUM_IRQ_REGS;
 		ab8500->irq_reg_offset = ab9540_irq_regoffset;
+		ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
 	} else {
 		ab8500->mask_size = AB8500_NUM_IRQ_REGS;
 		ab8500->irq_reg_offset = ab8500_irq_regoffset;
+		ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
 	}
-	ab8500->mask = kzalloc(ab8500->mask_size, GFP_KERNEL);
+	ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
 	if (!ab8500->mask)
 		return -ENOMEM;
-	ab8500->oldmask = kzalloc(ab8500->mask_size, GFP_KERNEL);
-	if (!ab8500->oldmask) {
-		ret = -ENOMEM;
-		goto out_freemask;
-	}
+	ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
+	if (!ab8500->oldmask)
+		return -ENOMEM;
+
 	/*
 	 * ab8500 has switched off due to (SWITCH_OFF_STATUS):
 	 * 0x01 Swoff bit programming
@@ -1071,11 +1669,50 @@ int __devinit ab8500_init(struct ab8500 *ab8500, enum ab8500_version version)
 		AB8500_SWITCH_OFF_STATUS, &value);
 	if (ret < 0)
 		return ret;
-	dev_info(ab8500->dev, "switch off status: %#x", value);
+	dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value);
+
+	if (value) {
+		for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) {
+			if (value & 1)
+				printk(KERN_CONT " \"%s\"",
+				       switch_off_status[i]);
+			value = value >> 1;
+
+		}
+		printk(KERN_CONT "\n");
+	} else {
+		printk(KERN_CONT " None\n");
+	}
+	ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
+		AB8500_TURN_ON_STATUS, &value);
+	if (ret < 0)
+		return ret;
+	dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value);
+
+	if (value) {
+		for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) {
+			if (value & 1)
+				printk("\"%s\" ", turn_on_status[i]);
+			value = value >> 1;
+		}
+		printk("\n");
+	} else {
+		printk("None\n");
+	}
 
 	if (plat && plat->init)
 		plat->init(ab8500);
 
+	if (is_ab9540(ab8500)) {
+		ret = get_register_interruptible(ab8500, AB8500_CHARGER,
+			AB8500_CH_USBCH_STAT1_REG, &value);
+		if (ret < 0)
+			return ret;
+		if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100))
+			ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,
+						     AB8500_VBUS_DET);
+	}
+
 	/* Clear and mask all interrupts */
 	for (i = 0; i < ab8500->mask_size; i++) {
 		/*
@@ -1086,6 +1723,9 @@ int __devinit ab8500_init(struct ab8500 *ab8500, enum ab8500_version version)
 				is_ab8500_1p1_or_earlier(ab8500))
 			continue;
 
+		if (ab8500->irq_reg_offset[i] < 0)
+			continue;
+
 		get_register_interruptible(ab8500, AB8500_INTERRUPT,
 			AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
 			&value);
@@ -1095,83 +1735,135 @@ int __devinit ab8500_init(struct ab8500 *ab8500, enum ab8500_version version)
 
 	ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
 	if (ret)
-		goto out_freeoldmask;
+		return ret;
 
 	for (i = 0; i < ab8500->mask_size; i++)
 		ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
 
-	if (ab8500->irq_base) {
-		ret = ab8500_irq_init(ab8500);
-		if (ret)
-			goto out_freeoldmask;
-
-		ret = request_threaded_irq(ab8500->irq, NULL, ab8500_irq,
-					   IRQF_ONESHOT | IRQF_NO_SUSPEND,
-					   "ab8500", ab8500);
-		if (ret)
-			goto out_removeirq;
-	}
-
-	ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs,
-			      ARRAY_SIZE(abx500_common_devs), NULL,
-			      ab8500->irq_base);
+	ret = ab8500_irq_init(ab8500, np);
+	if (ret)
+		return ret;
 
+	ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,
+			ab8500_hierarchical_irq,
+			IRQF_ONESHOT | IRQF_NO_SUSPEND,
+			"ab8500", ab8500);
 	if (ret)
-		goto out_freeirq;
+		return ret;
+
+#if CONFIG_DEBUG_FS
+	/* Pass to debugfs */
+	ab8500_debug_resources[0].start = ab8500->irq;
+	ab8500_debug_resources[0].end = ab8500->irq;
+#endif
 
 	if (is_ab9540(ab8500))
 		ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
-			      ARRAY_SIZE(ab9540_devs), NULL,
-			      ab8500->irq_base);
+				ARRAY_SIZE(ab9540_devs), NULL,
+				0, ab8500->domain);
+	else if (is_ab8540(ab8500)) {
+		ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs,
+			      ARRAY_SIZE(ab8540_devs), NULL,
+			      0, ab8500->domain);
+		if (ret)
+			return ret;
+
+		if (is_ab8540_1p2_or_earlier(ab8500))
+			ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut1_devs,
+			      ARRAY_SIZE(ab8540_cut1_devs), NULL,
+			      0, ab8500->domain);
+		else /* ab8540 >= cut2 */
+			ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut2_devs,
+			      ARRAY_SIZE(ab8540_cut2_devs), NULL,
+			      0, ab8500->domain);
+	} else if (is_ab8505(ab8500))
+		ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs,
+			      ARRAY_SIZE(ab8505_devs), NULL,
+			      0, ab8500->domain);
 	else
 		ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
-			      ARRAY_SIZE(ab9540_devs), NULL,
-			      ab8500->irq_base);
+				ARRAY_SIZE(ab8500_devs), NULL,
+				0, ab8500->domain);
 	if (ret)
-		goto out_freeirq;
+		return ret;
 
-	if (is_ab9540(ab8500))
+	if (!no_bm) {
+		/* Add battery management devices */
+		ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
+				      ARRAY_SIZE(ab8500_bm_devs), NULL,
+				      0, ab8500->domain);
+		if (ret)
+			dev_err(ab8500->dev, "error adding bm devices\n");
+	}
+
+	if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
+			ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
 		ret = sysfs_create_group(&ab8500->dev->kobj,
 					&ab9540_attr_group);
 	else
 		ret = sysfs_create_group(&ab8500->dev->kobj,
 					&ab8500_attr_group);
+
+	if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
+			ab8500->chip_id >= AB8500_CUT2P0)
+		ret = sysfs_create_group(&ab8500->dev->kobj,
+					 &ab8505_attr_group);
+
 	if (ret)
 		dev_err(ab8500->dev, "error creating sysfs entries\n");
-	else
-		return ret;
-
-out_freeirq:
-	if (ab8500->irq_base)
-		free_irq(ab8500->irq, ab8500);
-out_removeirq:
-	if (ab8500->irq_base)
-		ab8500_irq_remove(ab8500);
-out_freeoldmask:
-	kfree(ab8500->oldmask);
-out_freemask:
-	kfree(ab8500->mask);
 
 	return ret;
 }
 
-int __devexit ab8500_exit(struct ab8500 *ab8500)
+static int ab8500_remove(struct platform_device *pdev)
 {
-	if (is_ab9540(ab8500))
+	struct ab8500 *ab8500 = platform_get_drvdata(pdev);
+
+	if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
+			ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
 		sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
 	else
 		sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
+
+	if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
+			ab8500->chip_id >= AB8500_CUT2P0)
+		sysfs_remove_group(&ab8500->dev->kobj, &ab8505_attr_group);
+
 	mfd_remove_devices(ab8500->dev);
-	if (ab8500->irq_base) {
-		free_irq(ab8500->irq, ab8500);
-		ab8500_irq_remove(ab8500);
-	}
-	kfree(ab8500->oldmask);
-	kfree(ab8500->mask);
 
 	return 0;
 }
 
+static const struct platform_device_id ab8500_id[] = {
+	{ "ab8500-core", AB8500_VERSION_AB8500 },
+	{ "ab8505-i2c", AB8500_VERSION_AB8505 },
+	{ "ab9540-i2c", AB8500_VERSION_AB9540 },
+	{ "ab8540-i2c", AB8500_VERSION_AB8540 },
+	{ }
+};
+
+static struct platform_driver ab8500_core_driver = {
+	.driver = {
+		.name = "ab8500-core",
+		.owner = THIS_MODULE,
+	},
+	.probe	= ab8500_probe,
+	.remove	= ab8500_remove,
+	.id_table = ab8500_id,
+};
+
+static int __init ab8500_core_init(void)
+{
+	return platform_driver_register(&ab8500_core_driver);
+}
+
+static void __exit ab8500_core_exit(void)
+{
+	platform_driver_unregister(&ab8500_core_driver);
+}
+core_initcall(ab8500_core_init);
+module_exit(ab8500_core_exit);
+
 MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
 MODULE_DESCRIPTION("AB8500 MFD core");
 MODULE_LICENSE("GPL v2");