mfd: Rename all twl4030_i2c*

This patch renames function names like twl4030_i2c_write_u8,
twl4030_i2c_read_u8 to twl_i2c_write_u8, twl_i2c_read_u8
and also common variable in twl-core.c

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index 93565be..6119712 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -92,7 +92,7 @@
 {
 	int ret;
 
-	ret = twl4030_i2c_read_u8(TWL4030_MODULE_RTC, data, reg);
+	ret = twl_i2c_read_u8(TWL4030_MODULE_RTC, data, reg);
 	if (ret < 0)
 		pr_err("twl4030_rtc: Could not read TWL4030"
 		       "register %X - error %d\n", reg, ret);
@@ -106,7 +106,7 @@
 {
 	int ret;
 
-	ret = twl4030_i2c_write_u8(TWL4030_MODULE_RTC, data, reg);
+	ret = twl_i2c_write_u8(TWL4030_MODULE_RTC, data, reg);
 	if (ret < 0)
 		pr_err("twl4030_rtc: Could not write TWL4030"
 		       "register %X - error %d\n", reg, ret);
@@ -201,7 +201,7 @@
 	if (ret < 0)
 		return ret;
 
-	ret = twl4030_i2c_read(TWL4030_MODULE_RTC, rtc_data,
+	ret = twl_i2c_read(TWL4030_MODULE_RTC, rtc_data,
 			       REG_SECONDS_REG, ALL_TIME_REGS);
 
 	if (ret < 0) {
@@ -243,7 +243,7 @@
 		goto out;
 
 	/* update all the time registers in one shot */
-	ret = twl4030_i2c_write(TWL4030_MODULE_RTC, rtc_data,
+	ret = twl_i2c_write(TWL4030_MODULE_RTC, rtc_data,
 			REG_SECONDS_REG, ALL_TIME_REGS);
 	if (ret < 0) {
 		dev_err(dev, "rtc_set_time error %d\n", ret);
@@ -266,7 +266,7 @@
 	unsigned char rtc_data[ALL_TIME_REGS + 1];
 	int ret;
 
-	ret = twl4030_i2c_read(TWL4030_MODULE_RTC, rtc_data,
+	ret = twl_i2c_read(TWL4030_MODULE_RTC, rtc_data,
 			       REG_ALARM_SECONDS_REG, ALL_TIME_REGS);
 	if (ret < 0) {
 		dev_err(dev, "rtc_read_alarm error %d\n", ret);
@@ -305,7 +305,7 @@
 	alarm_data[6] = bin2bcd(alm->time.tm_year - 100);
 
 	/* update all the alarm registers in one shot */
-	ret = twl4030_i2c_write(TWL4030_MODULE_RTC, alarm_data,
+	ret = twl_i2c_write(TWL4030_MODULE_RTC, alarm_data,
 			REG_ALARM_SECONDS_REG, ALL_TIME_REGS);
 	if (ret) {
 		dev_err(dev, "rtc_set_alarm error %d\n", ret);
@@ -363,7 +363,7 @@
 	 * risk wrongly clearing status for some other IRQ (losing
 	 * the interrupt).  Be smarter about handling RTC_UF ...
 	 */
-	res = twl4030_i2c_read_u8(TWL4030_MODULE_INT,
+	res = twl_i2c_read_u8(TWL4030_MODULE_INT,
 			&rd_reg, TWL4030_INT_PWR_ISR1);
 	if (res)
 		goto out;