mfd: Update chip id of 88pm8607

Chipid of 88pm8607 is 0x40 or 0x50.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

drivers/mfd/88pm860x-core.c

@@ -645,10 +645,13 @@ static void __devinit device_8607_init(struct pm860x_chip *chip,
 		dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
 		goto out;
 	}
-	if ((ret & PM8607_VERSION_MASK) == PM8607_VERSION)
+	switch (ret & PM8607_VERSION_MASK) {
+	case 0x40:
+	case 0x50:
 		dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
 			 ret);
-	else {
+		break;
+	default:
 		dev_err(chip->dev, "Failed to detect Marvell 88PM8607. "
 			"Chip ID: %02x\n", ret);
 		goto out;

include/linux/mfd/88pm860x.h

@@ -138,7 +138,7 @@ enum {
 	PM8607_ID_RG_MAX,
 };
 
-#define PM8607_VERSION			(0x40)	/* 8607 chip ID */
+/* 8607 chip ID is 0x40 or 0x50 */
 #define PM8607_VERSION_MASK		(0xF0)	/* 8607 chip ID mask */
 
 /* Interrupt Registers */