mfd: pm8058: Modify pm8058 subdevices to pm8xxx interface

Move the following  subdevices to use the pm8xxx interface -
mpp, irq, gpio, keypad, power-key, leds, othc, vibrator,
rtc, batt-alarm, thermal, upl, nfc, pwm, xoadc, regulators,
xo-buffers, charger.

This allows usage of a common driver for modules which are same
across multiple PM8XXX PMICs. It also provides flexibility
to add/remove subdevices for multiple board configurations.

Change-Id: Id9795552fc9f4a2c920c070babfaef1f4cd6ca61
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index cca1035..3590e6d 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -244,7 +244,7 @@
 
 config BATTERY_MSM8X60
 	tristate "MSM8X60 battery"
-	select PMIC8058_BATTALARM
+	select PMIC8XXX_BATTALARM
 	help
 	  Some MSM boards have dual charging paths to charge the battery.
 	  Say Y to enable support for the battery charging in
diff --git a/drivers/power/pmic8058-charger.c b/drivers/power/pmic8058-charger.c
index a3ce54d..70b5d59 100644
--- a/drivers/power/pmic8058-charger.c
+++ b/drivers/power/pmic8058-charger.c
@@ -15,7 +15,6 @@
 #include <linux/moduleparam.h>
 #include <linux/platform_device.h>
 #include <linux/errno.h>
-#include <linux/mfd/pmic8058.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/bitops.h>
@@ -25,8 +24,10 @@
 #include <linux/slab.h>
 #include <linux/msm_adc.h>
 #include <linux/notifier.h>
-#include <linux/pmic8058-batt-alarm.h>
+#include <linux/mfd/pm8xxx/core.h>
+#include <linux/mfd/pmic8058.h>
 #include <linux/pmic8058-charger.h>
+#include <linux/mfd/pm8xxx/batt-alarm.h>
 
 #include <mach/msm_xo.h>
 #include <mach/msm_hsusb.h>
@@ -177,7 +178,6 @@
 
 struct pm8058_charger {
 	struct pmic_charger_pdata *pdata;
-	struct pm8058_chip *pm_chip;
 	struct device *dev;
 
 	int pmic_chg_irq[PMIC_CHG_MAX_INTS];
@@ -228,7 +228,11 @@
 	if (rc)
 		goto out;
 
-	rc = pm8058_batt_alarm_threshold_set(resume_mv, 4300);
+	rc = pm8xxx_batt_alarm_threshold_set(
+			PM8XXX_BATT_ALARM_LOWER_COMPARATOR, resume_mv);
+	if (!rc)
+		rc = pm8xxx_batt_alarm_threshold_set(
+			PM8XXX_BATT_ALARM_UPPER_COMPARATOR, 4300);
 
 out:
 	mutex_unlock(&batt_alarm_lock);
@@ -255,15 +259,9 @@
 
 static int pm_chg_get_rt_status(int irq)
 {
-	int count = 3;
 	int ret;
 
-	while ((ret =
-		pm8058_irq_get_rt_status(pm8058_chg.pm_chip, irq)) == -EAGAIN
-	       && count--) {
-		dev_info(pm8058_chg.dev, "%s trycount=%d\n", __func__, count);
-		cpu_relax();
-	}
+	ret = pm8xxx_read_irq_stat(pm8058_chg.dev->parent, irq);
 	if (ret == -EAGAIN)
 		return 0;
 	else
@@ -281,53 +279,53 @@
 	u8 temp;
 	int temp2;
 
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_CNTRL, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_CNTRL = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_CNTRL_2, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL_2, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_CNTRL_2 = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_VMAX_SEL, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_VMAX_SEL, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_VMAX_SEL = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_VBAT_DET, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_VBAT_DET, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_VBAT_DET = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_IMAX, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_IMAX, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_IMAX = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_TRICKLE, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_TRICKLE, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_TRICKLE = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_ITERM, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_ITERM, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_ITERM = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_TTRKL_MAX, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_TTRKL_MAX, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_TTRKL_MAX = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_TCHG_MAX, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_TCHG_MAX, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_TCHG_MAX = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_TEMP_THRESH, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_TEMP_THRESH, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_TEMP_THRESH = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_TEMP_REG, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_TEMP_REG, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_TEMP_REG = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_PULSE, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_PULSE, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_PULSE = 0x%x\n", temp);
 
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_STATUS_CLEAR_IRQ_1,
-		    &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_STATUS_CLEAR_IRQ_1,
+		    &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_STATUS_CLEAR_IRQ_1 = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_STATUS_CLEAR_IRQ_3,
-		    &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_STATUS_CLEAR_IRQ_3,
+		    &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_STATUS_CLEAR_IRQ_3 = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_STATUS_CLEAR_IRQ_10,
-		    &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_STATUS_CLEAR_IRQ_10,
+		    &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_STATUS_CLEAR_IRQ_10 = 0x%x\n",
 		temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_STATUS_CLEAR_IRQ_11,
-		    &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_STATUS_CLEAR_IRQ_11,
+		    &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_STATUS_CLEAR_IRQ_11 = 0x%x\n",
 		temp);
 
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_MASK_IRQ_1, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_MASK_IRQ_1, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_MASK_IRQ_1 = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_MASK_IRQ_3, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_MASK_IRQ_3, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_MASK_IRQ_3 = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_MASK_IRQ_10, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_MASK_IRQ_10, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_MASK_IRQ_10 = 0x%x\n", temp);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_MASK_IRQ_11, &temp, 1);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_MASK_IRQ_11, &temp);
 	dev_dbg(pm8058_chg.dev, "PM8058_CHG_MASK_IRQ_11 = 0x%x\n", temp);
 
 	temp2 = pm_chg_get_rt_status(pm8058_chg.pmic_chg_irq[CHGVAL_IRQ]);
@@ -405,7 +403,7 @@
 	u8 temp;
 	int ret;
 
-	ret = pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_CNTRL, &temp, 1);
+	ret = pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL, &temp);
 	if (ret)
 		return ret;
 	if (value)
@@ -413,7 +411,7 @@
 	else
 		temp &= ~BIT(CHG_USB_SUSPEND);
 
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_CNTRL, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL, temp);
 }
 
 static int pm_chg_auto_disable(int value)
@@ -421,7 +419,7 @@
 	u8 temp;
 	int ret;
 
-	ret = pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_CNTRL_2, &temp, 1);
+	ret = pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL_2, &temp);
 	if (ret)
 		return ret;
 	if (value)
@@ -429,7 +427,7 @@
 	else
 		temp &= ~BIT(CHARGE_AUTO_DIS);
 
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_CNTRL_2, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL_2, temp);
 }
 
 static int pm_chg_batt_temp_disable(int value)
@@ -437,7 +435,7 @@
 	u8 temp;
 	int ret;
 
-	ret = pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_CNTRL_2, &temp, 1);
+	ret = pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL_2, &temp);
 	if (ret)
 		return ret;
 	if (value)
@@ -445,7 +443,7 @@
 	else
 		temp &= ~BIT(CHG_BATT_TEMP_DIS);
 
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_CNTRL_2, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL_2, temp);
 }
 
 static int pm_chg_vbatdet_set(int voltage)
@@ -463,7 +461,7 @@
 	temp = diff / PM8058_CHG_V_STEP_MV;
 	dev_dbg(pm8058_chg.dev, "%s voltage=%d setting %02x\n", __func__,
 		voltage, temp);
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_VBAT_DET, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_VBAT_DET, temp);
 }
 
 static int pm_chg_imaxsel_set(int chg_current)
@@ -484,7 +482,7 @@
 			__func__, chg_current);
 		temp = 31;
 	}
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_IMAX, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_IMAX, temp);
 }
 
 #define PM8058_CHG_VMAX_MIN  3300
@@ -501,7 +499,7 @@
 	temp = (voltage - PM8058_CHG_V_MIN_MV) / PM8058_CHG_V_STEP_MV;
 	dev_dbg(pm8058_chg.dev, "%s mV=%d setting %02x\n", __func__, voltage,
 		temp);
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_VMAX_SEL, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_VMAX_SEL, temp);
 }
 
 static int pm_chg_failed_clear(int value)
@@ -509,14 +507,14 @@
 	u8 temp;
 	int ret;
 
-	ret = pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_CNTRL_2, &temp, 1);
+	ret = pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL_2, &temp);
 	if (ret)
 		return ret;
 	if (value)
 		temp |= BIT(CHG_FAILED_CLEAR);
 	else
 		temp &= ~BIT(CHG_FAILED_CLEAR);
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_CNTRL_2, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL_2, temp);
 }
 
 static int pm_chg_iterm_set(int chg_current)
@@ -524,7 +522,7 @@
 	u8 temp;
 
 	temp = (chg_current / PM8058_CHG_I_TERM_STEP_MA) - 1;
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_ITERM, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_ITERM, temp);
 }
 
 static int pm_chg_tchg_set(int minutes)
@@ -532,7 +530,7 @@
 	u8 temp;
 
 	temp = (minutes >> PM8058_CHG_T_TCHG_SHIFT) - 1;
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_TCHG_MAX, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_TCHG_MAX, temp);
 }
 
 static int pm_chg_ttrkl_set(int minutes)
@@ -540,7 +538,8 @@
 	u8 temp;
 
 	temp = minutes - 1;
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_TTRKL_MAX, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_TTRKL_MAX,
+									temp);
 }
 
 static int pm_chg_enum_done_enable(int value)
@@ -548,7 +547,7 @@
 	u8 temp;
 	int ret;
 
-	ret = pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_CNTRL_2, &temp, 1);
+	ret = pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL_2, &temp);
 	if (ret)
 		return ret;
 	if (value)
@@ -556,7 +555,7 @@
 	else
 		temp &= ~BIT(ENUM_DONE);
 
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_CNTRL_2, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL_2, temp);
 }
 
 static uint32_t get_fsm_state(void)
@@ -564,8 +563,8 @@
 	u8 temp;
 
 	temp = 0x00;
-	pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_TEST_3, &temp, 1);
-	pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_TEST_3, &temp, 1);
+	pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_TEST_3, temp);
+	pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_TEST_3, &temp);
 	return (uint32_t)temp;
 }
 
@@ -590,7 +589,7 @@
 	u8 temp;
 	int ret;
 
-	ret = pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_CNTRL, &temp, 1);
+	ret = pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL, &temp);
 	if (ret)
 		return ret;
 	if (value)
@@ -598,7 +597,7 @@
 	else
 		temp &= ~BIT(CHG_CHARGE_DIS);
 
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_CNTRL, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL, temp);
 }
 
 static void pm8058_start_system_current(struct msm_hardware_charger *hw_chg,
@@ -734,7 +733,11 @@
 	case PMIC8058_CHG_STATE_ATC:
 	case PMIC8058_CHG_STATE_FAST_CHG:
 	case PMIC8058_CHG_STATE_TRKL_CHG:
-		rc = pm8058_batt_alarm_state_set(0, 0);
+		rc = pm8xxx_batt_alarm_disable(
+				PM8XXX_BATT_ALARM_UPPER_COMPARATOR);
+		if (!rc)
+			rc = pm8xxx_batt_alarm_disable(
+				PM8XXX_BATT_ALARM_LOWER_COMPARATOR);
 		if (rc)
 			dev_err(pm8058_chg.dev,
 				"%s: unable to set alarm state\n", __func__);
@@ -863,25 +866,25 @@
 		}
 	} else {
 		if (pm8058_chg.present) {
-			ret = pm8058_read(pm8058_chg.pm_chip,
+			ret = pm8xxx_readb(pm8058_chg.dev->parent,
 						PM8058_OVP_TEST_REG,
-						&old, 1);
+						&old);
 			temp = old | BIT(FORCE_OVP_OFF);
-			ret = pm8058_write(pm8058_chg.pm_chip,
+			ret = pm8xxx_writeb(pm8058_chg.dev->parent,
 						PM8058_OVP_TEST_REG,
-						&temp, 1);
+						temp);
 			temp = 0xFC;
-			ret = pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_TEST,
-						&temp, 1);
+			ret = pm8xxx_writeb(pm8058_chg.dev->parent,
+					PM8058_CHG_TEST, temp);
 			/* 10 ms sleep is for the VCHG to discharge */
 			msleep(10);
 			temp = 0xF0;
-			ret = pm8058_write(pm8058_chg.pm_chip,
+			ret = pm8xxx_writeb(pm8058_chg.dev->parent,
 						PM8058_CHG_TEST,
-						&temp, 1);
-			ret = pm8058_write(pm8058_chg.pm_chip,
+						temp);
+			ret = pm8xxx_writeb(pm8058_chg.dev->parent,
 						PM8058_OVP_TEST_REG,
-						&old, 1);
+						old);
 
 			pm_chg_enum_done_enable(0);
 			pm_chg_auto_disable(1);
@@ -904,21 +907,21 @@
 
 		pm_chg_enum_done_enable(0);
 		pm_chg_auto_disable(1);
-		ret = pm8058_read(pm8058_chg.pm_chip,
-				PM8058_OVP_TEST_REG, &old, 1);
+		ret = pm8xxx_readb(pm8058_chg.dev->parent,
+				PM8058_OVP_TEST_REG, &old);
 		temp = old | BIT(FORCE_OVP_OFF);
-		ret = pm8058_write(pm8058_chg.pm_chip,
-				PM8058_OVP_TEST_REG, &temp, 1);
+		ret = pm8xxx_writeb(pm8058_chg.dev->parent,
+				PM8058_OVP_TEST_REG, temp);
 		temp = 0xFC;
-		ret = pm8058_write(pm8058_chg.pm_chip,
-				PM8058_CHG_TEST, &temp, 1);
+		ret = pm8xxx_writeb(pm8058_chg.dev->parent,
+				PM8058_CHG_TEST, temp);
 		/* 10 ms sleep is for the VCHG to discharge */
 		msleep(10);
 		temp = 0xF0;
-		ret = pm8058_write(pm8058_chg.pm_chip,
-				PM8058_CHG_TEST, &temp, 1);
-		ret = pm8058_write(pm8058_chg.pm_chip,
-				PM8058_OVP_TEST_REG, &old, 1);
+		ret = pm8xxx_writeb(pm8058_chg.dev->parent,
+				PM8058_CHG_TEST, temp);
+		ret = pm8xxx_writeb(pm8058_chg.dev->parent,
+				PM8058_OVP_TEST_REG, old);
 
 		if (!is_chg_plugged_in()) {
 			msm_charger_notify_event(&usb_hw_chg,
@@ -983,8 +986,8 @@
 	u8 temp;
 
 	temp = 0x00;
-	if (!pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_TEST_3, &temp, 1)) {
-		pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_TEST_3, &temp, 1);
+	if (!pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_TEST_3, temp)) {
+		pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_TEST_3, &temp);
 		dev_dbg(pm8058_chg.dev, "%s state=%d\n", __func__, temp);
 	}
 	return IRQ_HANDLED;
@@ -1187,7 +1190,7 @@
 			"%s:couldnt find resource AUTO_CHGDONE\n", __func__);
 		goto err_out;
 	} else {
-		ret = request_threaded_irq(res->start, NULL,
+		ret = request_irq(res->start,
 				  pm8058_chg_auto_chgdone_handler,
 				  IRQF_TRIGGER_RISING,
 				  res->name, NULL);
@@ -1208,7 +1211,7 @@
 			"%s:couldnt find resource AUTO_CHGFAIL\n", __func__);
 		goto err_out;
 	} else {
-		ret = request_threaded_irq(res->start, NULL,
+		ret = request_irq(res->start,
 				  pm8058_chg_auto_chgfail_handler,
 				  IRQF_TRIGGER_RISING, res->name, NULL);
 		if (ret < 0) {
@@ -1227,7 +1230,7 @@
 			"%s:couldnt find resource CHGSTATE\n", __func__);
 		goto err_out;
 	} else {
-		ret = request_threaded_irq(res->start, NULL,
+		ret = request_irq(res->start,
 				  pm8058_chg_chgstate_handler,
 				  IRQF_TRIGGER_RISING, res->name, NULL);
 		if (ret < 0) {
@@ -1246,7 +1249,7 @@
 			"%s:couldnt find resource FASTCHG\n", __func__);
 		goto err_out;
 	} else {
-		ret = request_threaded_irq(res->start, NULL,
+		ret = request_irq(res->start,
 				  pm8058_chg_fastchg_handler,
 				  IRQF_TRIGGER_RISING, res->name, NULL);
 		if (ret < 0) {
@@ -1265,7 +1268,7 @@
 			"%s:couldnt find resource CHG_END\n", __func__);
 		goto err_out;
 	} else {
-		ret = request_threaded_irq(res->start, NULL,
+		ret = request_irq(res->start,
 				  pm8058_chg_batttemp_handler,
 				  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 				  res->name, NULL);
@@ -1286,7 +1289,7 @@
 			"%s:couldnt find resource BATT_REPLACE\n", __func__);
 		goto err_out;
 	} else {
-		ret = request_threaded_irq(res->start, NULL,
+		ret = request_irq(res->start,
 				  pm8058_chg_batt_replace_handler,
 				  IRQF_TRIGGER_RISING, res->name, NULL);
 		if (ret < 0) {
@@ -1305,7 +1308,7 @@
 			"%s:couldnt find resource BATTCONNECT\n", __func__);
 		goto err_out;
 	} else {
-		ret = request_threaded_irq(res->start, NULL,
+		ret = request_irq(res->start,
 				  pm8058_chg_battconnect_handler,
 				  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 				  res->name, NULL);
@@ -1351,7 +1354,7 @@
 	u8 temp;
 	int rc;
 
-	rc = pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_CNTRL, &temp, 1);
+	rc = pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL, &temp);
 	if (rc)
 		return rc;
 
@@ -1367,7 +1370,7 @@
 	u8 temp;
 	int rc;
 
-	rc = pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_CNTRL, &temp, 1);
+	rc = pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL, &temp);
 	if (rc)
 		return rc;
 	if (on)
@@ -1375,7 +1378,7 @@
 	else
 		temp &= ~BIT(CHG_CHARGE_BAT);
 
-	return pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_CNTRL, &temp, 1);
+	return pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_CNTRL, temp);
 
 }
 EXPORT_SYMBOL(pm8058_set_charge_batt);
@@ -1496,12 +1499,12 @@
 	u8 temp;
 
 	temp = 0xA3;
-	pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_TEST_2, &temp, 1);
+	pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_TEST_2, temp);
 	temp = 0x84;
-	pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_TEST_2, &temp, 1);
+	pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_TEST_2, temp);
 	msleep(2);
 	temp = 0x80;
-	pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_TEST_2, &temp, 1);
+	pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_TEST_2, temp);
 	return 0;
 }
 
@@ -1511,7 +1514,7 @@
 	int ret;
 	u8 temp;
 
-	ret = pm8058_read(pm8058_chg.pm_chip, i, &temp, 1);
+	ret = pm8xxx_readb(pm8058_chg.dev->parent, i, &temp);
 	if (ret)
 		return -EAGAIN;
 	*val = temp;
@@ -1525,7 +1528,7 @@
 	u8 temp;
 
 	temp = (u8) val;
-	ret = pm8058_write(pm8058_chg.pm_chip, i, &temp, 1);
+	ret = pm8xxx_writeb(pm8058_chg.dev->parent, i, temp);
 	mb();
 	if (ret)
 		return -EAGAIN;
@@ -1821,7 +1824,11 @@
 		break;
 	/* expected case - trip of low threshold */
 	case 1:
-		rc = pm8058_batt_alarm_state_set(0, 0);
+		rc = pm8xxx_batt_alarm_disable(
+				PM8XXX_BATT_ALARM_UPPER_COMPARATOR);
+		if (!rc)
+			rc = pm8xxx_batt_alarm_disable(
+				PM8XXX_BATT_ALARM_LOWER_COMPARATOR);
 		if (rc)
 			dev_err(pm8058_chg.dev,
 				"%s: unable to set alarm state\n", __func__);
@@ -1841,8 +1848,15 @@
 
 static int pm8058_monitor_for_recharging(void)
 {
+	int rc;
 	/* enable low comparator */
-	return pm8058_batt_alarm_state_set(1, 0);
+	rc = pm8xxx_batt_alarm_disable(PM8XXX_BATT_ALARM_UPPER_COMPARATOR);
+	if (!rc)
+		return pm8xxx_batt_alarm_enable(
+				PM8XXX_BATT_ALARM_LOWER_COMPARATOR);
+
+	return rc;
+
 }
 
 static struct msm_battery_gauge pm8058_batt_gauge = {
@@ -1860,33 +1874,30 @@
 	int ret = 0;
 
 	temp = 0x10;
-	ret |= pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_TEST, &temp, 1);
-	ret |= pm8058_read(pm8058_chg.pm_chip, PM8058_CHG_TEST, &old, 1);
+	ret |= pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_TEST, temp);
+	ret |= pm8xxx_readb(pm8058_chg.dev->parent, PM8058_CHG_TEST, &old);
 	old = old & ~BIT(IGNORE_LL);
 	temp = 0x90  | (0xF & old);
-	ret |= pm8058_write(pm8058_chg.pm_chip, PM8058_CHG_TEST, &temp, 1);
+	ret |= pm8xxx_writeb(pm8058_chg.dev->parent, PM8058_CHG_TEST, temp);
 
 	return ret;
 }
 
 static int __devinit pm8058_charger_probe(struct platform_device *pdev)
 {
-	struct pm8058_chip *pm_chip;
 	struct pmic8058_charger_data *pdata;
 	int rc = 0;
 
-	pm_chip = dev_get_drvdata(pdev->dev.parent);
-	if (pm_chip == NULL) {
-		pr_err("%s:no parent data passed in.\n", __func__);
-		return -EFAULT;
-	}
-
-	pm8058_chg.pm_chip = pm_chip;
 	pm8058_chg.pdata = pdev->dev.platform_data;
 	pm8058_chg.dev = &pdev->dev;
 	pdata = (struct pmic8058_charger_data *) pm8058_chg.pdata;
 
-	if (pdata) {
+	if (pdata == NULL) {
+		pr_err("%s: pdata not present\n", __func__);
+		return -EINVAL;
+	}
+
+	if (pdata->charger_data_valid) {
 		usb_hw_chg.type = pdata->charger_type;
 		chg_data.charger_type = pdata->charger_type;
 		chg_data.max_source_current = pdata->max_source_current;
@@ -1928,7 +1939,10 @@
 	pm8058_chg_enable_irq(BATTTEMP_IRQ);
 	pm8058_chg_enable_irq(BATTCONNECT_IRQ);
 
-	rc = pm8058_batt_alarm_state_set(0, 0);
+	rc = pm8xxx_batt_alarm_disable(PM8XXX_BATT_ALARM_UPPER_COMPARATOR);
+	if (!rc)
+		rc = pm8xxx_batt_alarm_disable(
+			PM8XXX_BATT_ALARM_LOWER_COMPARATOR);
 	if (rc) {
 		pr_err("%s: unable to set batt alarm state\n", __func__);
 		goto free_irq;
@@ -1938,26 +1952,31 @@
 	 * The batt-alarm driver requires sane values for both min / max,
 	 * regardless of whether they're both activated.
 	 */
-	rc = pm8058_batt_alarm_threshold_set(resume_mv, 4300);
+	rc = pm8xxx_batt_alarm_threshold_set(
+			PM8XXX_BATT_ALARM_LOWER_COMPARATOR, resume_mv);
+	if (!rc)
+		rc = pm8xxx_batt_alarm_threshold_set(
+			PM8XXX_BATT_ALARM_UPPER_COMPARATOR, 4300);
 	if (rc) {
 		pr_err("%s: unable to set batt alarm threshold\n", __func__);
 		goto free_irq;
 	}
 
-	rc = pm8058_batt_alarm_hold_time_set(PM8058_BATT_ALARM_HOLD_TIME_16_MS);
+	rc = pm8xxx_batt_alarm_hold_time_set(
+				PM8XXX_BATT_ALARM_HOLD_TIME_16_MS);
 	if (rc) {
 		pr_err("%s: unable to set batt alarm hold time\n", __func__);
 		goto free_irq;
 	}
 
 	/* PWM enabled at 2Hz */
-	rc = pm8058_batt_alarm_pwm_rate_set(1, 7, 4);
+	rc = pm8xxx_batt_alarm_pwm_rate_set(1, 7, 4);
 	if (rc) {
 		pr_err("%s: unable to set batt alarm pwm rate\n", __func__);
 		goto free_irq;
 	}
 
-	rc = pm8058_batt_alarm_register_notifier(&alarm_notifier);
+	rc = pm8xxx_batt_alarm_register_notifier(&alarm_notifier);
 	if (rc) {
 		pr_err("%s: unable to register alarm notifier\n", __func__);
 		goto free_irq;
@@ -1987,11 +2006,14 @@
 	remove_debugfs_entries();
 	kfree(chip);
 
-	rc = pm8058_batt_alarm_state_set(0, 0);
+	rc = pm8xxx_batt_alarm_disable(PM8XXX_BATT_ALARM_UPPER_COMPARATOR);
+	if (!rc)
+		rc = pm8xxx_batt_alarm_disable(
+			PM8XXX_BATT_ALARM_LOWER_COMPARATOR);
 	if (rc)
 		pr_err("%s: unable to set batt alarm state\n", __func__);
 
-	rc |= pm8058_batt_alarm_unregister_notifier(&alarm_notifier);
+	rc |= pm8xxx_batt_alarm_unregister_notifier(&alarm_notifier);
 	if (rc)
 		pr_err("%s: unable to register alarm notifier\n", __func__);
 	return rc;