ENGR00223037-1 pmic: Fix the bug of pmic I2C

Fix the bug of wm831x pmic I2C

Signed-off-by: Zhang Xiaodong <B39117@freescale.com>
Acked-by: Lily Zhang

diff --git a/drivers/mfd/wm831x-i2c.c b/drivers/mfd/wm831x-i2c.c
old mode 100644 (file)
new mode 100755 (executable)
index a06cbc7..7a4f998
--- a/drivers/mfd/wm831x-i2c.c
+++ b/drivers/mfd/wm831x-i2c.c
@@ -53,23 +53,21 @@ static int wm831x_i2c_write_device(struct wm831x *wm831x, unsigned short reg,
        struct i2c_client *i2c = wm831x->control_data;
        struct i2c_msg xfer[2];
        int ret;
+    char buf_to_write[4];
 
        reg = cpu_to_be16(reg);
+    memcpy( buf_to_write, &reg, 2);
+    memcpy( buf_to_write + 2, src, 2);
 
        xfer[0].addr = i2c->addr;
        xfer[0].flags = 0;
-       xfer[0].len = 2;
-       xfer[0].buf = (char *)®
+       xfer[0].len = 4;
+       xfer[0].buf = buf_to_write;
 
-       xfer[1].addr = i2c->addr;
-       xfer[1].flags = I2C_M_NOSTART;
-       xfer[1].len = bytes;
-       xfer[1].buf = (char *)src;
-
-       ret = i2c_transfer(i2c->adapter, xfer, 2);
+       ret = i2c_transfer(i2c->adapter, xfer, 1);
        if (ret < 0)
                return ret;
-       if (ret != 2)
+       if (ret != 1)
                return -EIO;
 
        return 0;